<html><!-- Created using the cpp_pretty_printer from the dlib C++ library. See http://dlib.net for updates. --><head><title>dlib C++ Library - jidctint.c</title></head><body bgcolor='white'><pre> <font color='#009900'>/* * jidctint.c * * Copyright (C) 1991-1998, Thomas G. Lane. * Modification developed 2002-2009 by Guido Vollbeding. * This file is part of the Independent JPEG Group's software. * For conditions of distribution and use, see the accompanying README file. * * This file contains a slow-but-accurate integer implementation of the * inverse DCT (Discrete Cosine Transform). In the IJG code, this routine * must also perform dequantization of the input coefficients. * * A 2-D IDCT can be done by 1-D IDCT on each column followed by 1-D IDCT * on each row (or vice versa, but it's more convenient to emit a row at * a time). Direct algorithms are also available, but they are much more * complex and seem not to be any faster when reduced to code. * * This implementation is based on an algorithm described in * C. Loeffler, A. Ligtenberg and G. Moschytz, "Practical Fast 1-D DCT * Algorithms with 11 Multiplications", Proc. Int'l. Conf. on Acoustics, * Speech, and Signal Processing 1989 (ICASSP '89), pp. 988-991. * The primary algorithm described there uses 11 multiplies and 29 adds. * We use their alternate method with 12 multiplies and 32 adds. * The advantage of this method is that no data path contains more than one * multiplication; this allows a very simple and accurate implementation in * scaled fixed-point arithmetic, with a minimal number of shifts. * * We also provide IDCT routines with various output sample block sizes for * direct resolution reduction or enlargement and for direct resolving the * common 2x1 and 1x2 subsampling cases without additional resampling: NxN * (N=1...16), 2NxN, and Nx2N (N=1...8) pixels for one 8x8 input DCT block. * * For N<8 we simply take the corresponding low-frequency coefficients of * the 8x8 input DCT block and apply an NxN point IDCT on the sub-block * to yield the downscaled outputs. * This can be seen as direct low-pass downsampling from the DCT domain * point of view rather than the usual spatial domain point of view, * yielding significant computational savings and results at least * as good as common bilinear (averaging) spatial downsampling. * * For N>8 we apply a partial NxN IDCT on the 8 input coefficients as * lower frequencies and higher frequencies assumed to be zero. * It turns out that the computational effort is similar to the 8x8 IDCT * regarding the output size. * Furthermore, the scaling and descaling is the same for all IDCT sizes. * * CAUTION: We rely on the FIX() macro except for the N=1,2,4,8 cases * since there would be too many additional constants to pre-calculate. */</font> <font color='#0000FF'>#define</font> JPEG_INTERNALS <font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='jinclude.h.html'>jinclude.h</a>" <font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='jpeglib.h.html'>jpeglib.h</a>" <font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='jdct.h.html'>jdct.h</a>" <font color='#009900'>/* Private declarations for DCT subsystem */</font> <font color='#0000FF'>#ifdef</font> DCT_ISLOW_SUPPORTED <font color='#009900'>/* * This module is specialized to the case DCTSIZE = 8. */</font> <font color='#0000FF'>#if</font> DCTSIZE <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>8</font> Sorry, <font color='#0000FF'>this</font> code only copes with <font color='#979000'>8</font>x8 DCT blocks. <font color='#009900'>/* deliberate syntax err */</font> <font color='#0000FF'>#endif</font> <font color='#009900'>/* * The poop on this scaling stuff is as follows: * * Each 1-D IDCT step produces outputs which are a factor of sqrt(N) * larger than the true IDCT outputs. The final outputs are therefore * a factor of N larger than desired; since N=8 this can be cured by * a simple right shift at the end of the algorithm. The advantage of * this arrangement is that we save two multiplications per 1-D IDCT, * because the y0 and y4 inputs need not be divided by sqrt(N). * * We have to do addition and subtraction of the integer inputs, which * is no problem, and multiplication by fractional constants, which is * a problem to do in integer arithmetic. We multiply all the constants * by CONST_SCALE and convert them to integer constants (thus retaining * CONST_BITS bits of precision in the constants). After doing a * multiplication we have to divide the product by CONST_SCALE, with proper * rounding, to produce the correct output. This division can be done * cheaply as a right shift of CONST_BITS bits. We postpone shifting * as long as possible so that partial sums can be added together with * full fractional precision. * * The outputs of the first pass are scaled up by PASS1_BITS bits so that * they are represented to better-than-integral precision. These outputs * require BITS_IN_JSAMPLE + PASS1_BITS + 3 bits; this fits in a 16-bit word * with the recommended scaling. (To scale up 12-bit sample data further, an * intermediate INT32 array would be needed.) * * To avoid overflow of the 32-bit intermediate results in pass 2, we must * have BITS_IN_JSAMPLE + CONST_BITS + PASS1_BITS <= 26. Error analysis * shows that the values given below are the most effective. */</font> <font color='#0000FF'>#if</font> BITS_IN_JSAMPLE <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>8</font> <font color='#0000FF'>#define</font> CONST_BITS <font color='#979000'>13</font> <font color='#0000FF'>#define</font> PASS1_BITS <font color='#979000'>2</font> <font color='#0000FF'>#else</font> <font color='#0000FF'>#define</font> CONST_BITS <font color='#979000'>13</font> <font color='#0000FF'>#define</font> PASS1_BITS <font color='#979000'>1</font> <font color='#009900'>/* lose a little precision to avoid overflow */</font> <font color='#0000FF'>#endif</font> <font color='#009900'>/* Some C compilers fail to reduce "FIX(constant)" at compile time, thus * causing a lot of useless floating-point operations at run time. * To get around this we use the following pre-calculated constants. * If you change CONST_BITS you may want to add appropriate values. * (With a reasonable C compiler, you can just rely on the FIX() macro...) */</font> <font color='#0000FF'>#if</font> CONST_BITS <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>13</font> <font color='#0000FF'>#define</font> FIX_0_298631336 <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> <font color='#979000'>2446</font><font face='Lucida Console'>)</font> <font color='#009900'>/* FIX(0.298631336) */</font> <font color='#0000FF'>#define</font> FIX_0_390180644 <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> <font color='#979000'>3196</font><font face='Lucida Console'>)</font> <font color='#009900'>/* FIX(0.390180644) */</font> <font color='#0000FF'>#define</font> FIX_0_541196100 <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> <font color='#979000'>4433</font><font face='Lucida Console'>)</font> <font color='#009900'>/* FIX(0.541196100) */</font> <font color='#0000FF'>#define</font> FIX_0_765366865 <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> <font color='#979000'>6270</font><font face='Lucida Console'>)</font> <font color='#009900'>/* FIX(0.765366865) */</font> <font color='#0000FF'>#define</font> FIX_0_899976223 <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> <font color='#979000'>7373</font><font face='Lucida Console'>)</font> <font color='#009900'>/* FIX(0.899976223) */</font> <font color='#0000FF'>#define</font> FIX_1_175875602 <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> <font color='#979000'>9633</font><font face='Lucida Console'>)</font> <font color='#009900'>/* FIX(1.175875602) */</font> <font color='#0000FF'>#define</font> FIX_1_501321110 <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> <font color='#979000'>12299</font><font face='Lucida Console'>)</font> <font color='#009900'>/* FIX(1.501321110) */</font> <font color='#0000FF'>#define</font> FIX_1_847759065 <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> <font color='#979000'>15137</font><font face='Lucida Console'>)</font> <font color='#009900'>/* FIX(1.847759065) */</font> <font color='#0000FF'>#define</font> FIX_1_961570560 <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> <font color='#979000'>16069</font><font face='Lucida Console'>)</font> <font color='#009900'>/* FIX(1.961570560) */</font> <font color='#0000FF'>#define</font> FIX_2_053119869 <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> <font color='#979000'>16819</font><font face='Lucida Console'>)</font> <font color='#009900'>/* FIX(2.053119869) */</font> <font color='#0000FF'>#define</font> FIX_2_562915447 <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> <font color='#979000'>20995</font><font face='Lucida Console'>)</font> <font color='#009900'>/* FIX(2.562915447) */</font> <font color='#0000FF'>#define</font> FIX_3_072711026 <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> <font color='#979000'>25172</font><font face='Lucida Console'>)</font> <font color='#009900'>/* FIX(3.072711026) */</font> <font color='#0000FF'>#else</font> <font color='#0000FF'>#define</font> FIX_0_298631336 FIX<font face='Lucida Console'>(</font><font color='#979000'>0.298631336</font><font face='Lucida Console'>)</font> <font color='#0000FF'>#define</font> FIX_0_390180644 FIX<font face='Lucida Console'>(</font><font color='#979000'>0.390180644</font><font face='Lucida Console'>)</font> <font color='#0000FF'>#define</font> FIX_0_541196100 FIX<font face='Lucida Console'>(</font><font color='#979000'>0.541196100</font><font face='Lucida Console'>)</font> <font color='#0000FF'>#define</font> FIX_0_765366865 FIX<font face='Lucida Console'>(</font><font color='#979000'>0.765366865</font><font face='Lucida Console'>)</font> <font color='#0000FF'>#define</font> FIX_0_899976223 FIX<font face='Lucida Console'>(</font><font color='#979000'>0.899976223</font><font face='Lucida Console'>)</font> <font color='#0000FF'>#define</font> FIX_1_175875602 FIX<font face='Lucida Console'>(</font><font color='#979000'>1.175875602</font><font face='Lucida Console'>)</font> <font color='#0000FF'>#define</font> FIX_1_501321110 FIX<font face='Lucida Console'>(</font><font color='#979000'>1.501321110</font><font face='Lucida Console'>)</font> <font color='#0000FF'>#define</font> FIX_1_847759065 FIX<font face='Lucida Console'>(</font><font color='#979000'>1.847759065</font><font face='Lucida Console'>)</font> <font color='#0000FF'>#define</font> FIX_1_961570560 FIX<font face='Lucida Console'>(</font><font color='#979000'>1.961570560</font><font face='Lucida Console'>)</font> <font color='#0000FF'>#define</font> FIX_2_053119869 FIX<font face='Lucida Console'>(</font><font color='#979000'>2.053119869</font><font face='Lucida Console'>)</font> <font color='#0000FF'>#define</font> FIX_2_562915447 FIX<font face='Lucida Console'>(</font><font color='#979000'>2.562915447</font><font face='Lucida Console'>)</font> <font color='#0000FF'>#define</font> FIX_3_072711026 FIX<font face='Lucida Console'>(</font><font color='#979000'>3.072711026</font><font face='Lucida Console'>)</font> <font color='#0000FF'>#endif</font> <font color='#009900'>/* Multiply an INT32 variable by an INT32 constant to yield an INT32 result. * For 8-bit samples with the recommended scaling, all the variable * and constant values involved are no more than 16 bits wide, so a * 16x16->32 bit multiply can be used instead of a full 32x32 multiply. * For 12-bit samples, a full 32-bit multiplication will be needed. */</font> <font color='#0000FF'>#if</font> BITS_IN_JSAMPLE <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>8</font> <font color='#0000FF'>#define</font> MULTIPLY<font face='Lucida Console'>(</font>var,<font color='#0000FF'>const</font><font face='Lucida Console'>)</font> MULTIPLY16C16<font face='Lucida Console'>(</font>var,<font color='#0000FF'>const</font><font face='Lucida Console'>)</font> <font color='#0000FF'>#else</font> <font color='#0000FF'>#define</font> MULTIPLY<font face='Lucida Console'>(</font>var,<font color='#0000FF'>const</font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>var<font face='Lucida Console'>)</font> <font color='#5555FF'>*</font> <font face='Lucida Console'>(</font><font color='#0000FF'>const</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#0000FF'>#endif</font> <font color='#009900'>/* Dequantize a coefficient by multiplying it by the multiplier-table * entry; produce an int result. In this module, both inputs and result * are 16 bits or less, so either int or short multiply will work. */</font> <font color='#0000FF'>#define</font> DEQUANTIZE<font face='Lucida Console'>(</font>coef,quantval<font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>ISLOW_MULT_TYPE<font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>coef<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>*</font> <font face='Lucida Console'>(</font>quantval<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients. */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_islow'></a>jpeg_idct_islow</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp1, tmp2, tmp3; INT32 tmp10, tmp11, tmp12, tmp13; INT32 z1, z2, z3; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[DCTSIZE2]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> <font color='#009900'>/* Note results are scaled up by sqrt(8) compared to a true IDCT; */</font> <font color='#009900'>/* furthermore, we scale the results by 2**PASS1_BITS. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> DCTSIZE; ctr <font color='#5555FF'>></font> <font color='#979000'>0</font>; ctr<font color='#5555FF'>-</font><font color='#5555FF'>-</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Due to quantization, we will usually find that many of the input * coefficients are zero, especially the AC terms. We can exploit this * by short-circuiting the IDCT calculation for any column in which all * the AC terms are zero. In that case each output is equal to the * DC coefficient (with scale factor as needed). * With typical images and quantization tables, half or more of the * column DCT calculations can be simplified this way. */</font> <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* AC terms all zero */</font> <font color='#0000FF'><u>int</u></font> dcval <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> PASS1_BITS; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> dcval; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> dcval; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> dcval; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> dcval; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> dcval; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> dcval; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> dcval; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> dcval; inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; <font color='#009900'>/* advance pointers to next column */</font> quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; <font color='#0000FF'>continue</font>; <b>}</b> <font color='#009900'>/* Even part: reverse the even part of the forward DCT. */</font> <font color='#009900'>/* The rotator is sqrt(2)*c(-6). */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_0_541196100<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_0_765366865<font face='Lucida Console'>)</font>; tmp3 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, FIX_1_847759065<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z3 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> z2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> z3; tmp1 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>-</font> z3; tmp10 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp2; tmp13 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp2; tmp11 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp3; tmp12 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>-</font> tmp3; <font color='#009900'>/* Odd part per figure 8; the matrix is unitary and hence its * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>]<font face='Lucida Console'>)</font>; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp2; z3 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp3; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_1_175875602<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * c3 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> FIX_1_961570560<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c3-c5) */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#5555FF'>-</font> FIX_0_390180644<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (c5-c3) */</font> z2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; z3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>+</font> tmp3, <font color='#5555FF'>-</font> FIX_0_899976223<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (c7-c3) */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0, FIX_0_298631336<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c1+c3+c5-c7) */</font> tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp3, FIX_1_501321110<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3-c5-c7) */</font> tmp0 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; tmp3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp1 <font color='#5555FF'>+</font> tmp2, <font color='#5555FF'>-</font> FIX_2_562915447<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c1-c3) */</font> tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp1, FIX_2_053119869<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3-c5+c7) */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp2, FIX_3_072711026<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3+c5-c7) */</font> tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; <font color='#009900'>/* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */</font> wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp3, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp3, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; <font color='#009900'>/* advance pointers to next column */</font> quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; <b>}</b> <font color='#009900'>/* Pass 2: process rows from work array, store into output array. */</font> <font color='#009900'>/* Note that we must descale the results by a factor of 8 == 2**3, */</font> <font color='#009900'>/* and also undo the PASS1_BITS scaling. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> DCTSIZE; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Rows of zeroes can be exploited in the same way as we did with columns. * However, the column calculation has created many nonzero AC terms, so * the simplification applies less often (typically 5% to 10% of the time). * On machines with very fast multiplication, it's possible that the * test takes more time than it's worth. In that case this section * may be commented out. */</font> <font color='#0000FF'>#ifndef</font> NO_ZERO_ROW_TEST <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>wsptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> wsptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> wsptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> wsptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> wsptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> wsptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> wsptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* AC terms all zero */</font> JSAMPLE dcval <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>DESCALE</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>], PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> dcval; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> dcval; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> dcval; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> dcval; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> dcval; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> dcval; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> dcval; outptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font> dcval; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> DCTSIZE; <font color='#009900'>/* advance pointer to next row */</font> <font color='#0000FF'>continue</font>; <b>}</b> <font color='#0000FF'>#endif</font> <font color='#009900'>/* Even part: reverse the even part of the forward DCT. */</font> <font color='#009900'>/* The rotator is sqrt(2)*c(-6). */</font> z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_0_541196100<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_0_765366865<font face='Lucida Console'>)</font>; tmp3 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, FIX_1_847759065<font face='Lucida Console'>)</font>; <font color='#009900'>/* Add fudge factor here for final descale. */</font> z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; tmp0 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; tmp1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z2 <font color='#5555FF'>-</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; tmp10 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp2; tmp13 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp2; tmp11 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp3; tmp12 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>-</font> tmp3; <font color='#009900'>/* Odd part per figure 8; the matrix is unitary and hence its * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. */</font> tmp0 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>7</font>]; tmp1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; tmp2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; tmp3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp2; z3 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp3; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_1_175875602<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * c3 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> FIX_1_961570560<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c3-c5) */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#5555FF'>-</font> FIX_0_390180644<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (c5-c3) */</font> z2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; z3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>+</font> tmp3, <font color='#5555FF'>-</font> FIX_0_899976223<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (c7-c3) */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0, FIX_0_298631336<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c1+c3+c5-c7) */</font> tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp3, FIX_1_501321110<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3-c5-c7) */</font> tmp0 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; tmp3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp1 <font color='#5555FF'>+</font> tmp2, <font color='#5555FF'>-</font> FIX_2_562915447<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c1-c3) */</font> tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp1, FIX_2_053119869<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3-c5+c7) */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp2, FIX_3_072711026<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3+c5-c7) */</font> tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; <font color='#009900'>/* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp3, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp3, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> DCTSIZE; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#0000FF'>#ifdef</font> IDCT_SCALING_SUPPORTED <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 7x7 output block. * * Optimized algorithm with 12 multiplications in the 1-D kernel. * cK represents sqrt(2) * cos(K*pi/14). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_7x7'></a>jpeg_idct_7x7</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp1, tmp2, tmp10, tmp11, tmp12, tmp13; INT32 z1, z2, z3; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>7</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>7</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp13 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp13 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>-</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.881747734</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.314692123</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp11 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>+</font> tmp13 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.841218003</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c4-c6 */</font> tmp0 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; z2 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> tmp0; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.274162392</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> tmp13; <font color='#009900'>/* c2 */</font> tmp10 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.077722536</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c4-c6 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.470602249</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c4+c6 */</font> tmp13 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.414213562</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c0 */</font> <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.935414347</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c3+c1-c5)/2 */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.170262339</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c3+c5-c1)/2 */</font> tmp0 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>-</font> tmp2; tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp2; tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.378756276</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c1 */</font> tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp2; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.613604268</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp0 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.870828693</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c1-c5 */</font> <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 7 rows from work array, store into output array. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>7</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp13 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp13 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>-</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.881747734</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.314692123</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp11 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>+</font> tmp13 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.841218003</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c4-c6 */</font> tmp0 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; z2 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> tmp0; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.274162392</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> tmp13; <font color='#009900'>/* c2 */</font> tmp10 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.077722536</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c4-c6 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.470602249</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c4+c6 */</font> tmp13 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.414213562</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c0 */</font> <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.935414347</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c3+c1-c5)/2 */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.170262339</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c3+c5-c1)/2 */</font> tmp0 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>-</font> tmp2; tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp2; tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.378756276</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c1 */</font> tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp2; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.613604268</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp0 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.870828693</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c1-c5 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>7</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a reduced-size 6x6 output block. * * Optimized algorithm with 3 multiplications in the 1-D kernel. * cK represents sqrt(2) * cos(K*pi/12). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_6x6'></a>jpeg_idct_6x6</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp1, tmp2, tmp10, tmp11, tmp12; INT32 z1, z2, z3; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>6</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>6</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.707106781</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> tmp1 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp10; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>-</font> tmp10 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp10 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp0; tmp12 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>-</font> tmp0; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.366025404</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp0 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS<font face='Lucida Console'>)</font>; tmp1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2 <font color='#5555FF'>-</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> PASS1_BITS; <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp1<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp1<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 6 rows from work array, store into output array. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>6</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; tmp2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.707106781</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> tmp1 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp10; tmp11 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp10 <font color='#5555FF'>-</font> tmp10; tmp10 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp10 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp0; tmp12 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>-</font> tmp0; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.366025404</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp0 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS<font face='Lucida Console'>)</font>; tmp1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2 <font color='#5555FF'>-</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>6</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a reduced-size 5x5 output block. * * Optimized algorithm with 5 multiplications in the 1-D kernel. * cK represents sqrt(2) * cos(K*pi/10). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_5x5'></a>jpeg_idct_5x5</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp1, tmp10, tmp11, tmp12; INT32 z1, z2, z3; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>5</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>5</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp12 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>+</font> tmp1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.790569415</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2+c4)/2 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>-</font> tmp1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.353553391</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2-c4)/2 */</font> z3 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> z2; tmp10 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> z1; tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> z1; tmp12 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>2</font>; <font color='#009900'>/* Odd part */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.831253876</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp0 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.513743148</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1-c3 */</font> tmp1 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.176250899</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c3 */</font> <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 5 rows from work array, store into output array. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>5</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp12 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp12 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; tmp0 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; tmp1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>+</font> tmp1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.790569415</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2+c4)/2 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>-</font> tmp1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.353553391</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2-c4)/2 */</font> z3 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> z2; tmp10 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> z1; tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> z1; tmp12 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>2</font>; <font color='#009900'>/* Odd part */</font> z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.831253876</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp0 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.513743148</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1-c3 */</font> tmp1 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.176250899</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c3 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>5</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a reduced-size 4x4 output block. * * Optimized algorithm with 3 multiplications in the 1-D kernel. * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point IDCT]. */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_4x4'></a>jpeg_idct_4x4</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp2, tmp10, tmp12; INT32 z1, z2, z3; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>4</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>4</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; tmp10 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>+</font> tmp2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> PASS1_BITS; tmp12 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>-</font> tmp2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> PASS1_BITS; <font color='#009900'>/* Odd part */</font> <font color='#009900'>/* Same rotation as in the even part of the 8x8 LL&M IDCT */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> z1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_0_765366865<font face='Lucida Console'>)</font>, <font color='#009900'>/* c2-c6 */</font> CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, FIX_1_847759065<font face='Lucida Console'>)</font>, <font color='#009900'>/* c2+c6 */</font> CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp2<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp2<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 4 rows from work array, store into output array. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>4</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; tmp10 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>+</font> tmp2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; tmp12 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>-</font> tmp2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; <font color='#009900'>/* Odd part */</font> <font color='#009900'>/* Same rotation as in the even part of the 8x8 LL&M IDCT */</font> z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp0 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_0_765366865<font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c6 */</font> tmp2 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, FIX_1_847759065<font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c6 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>4</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a reduced-size 3x3 output block. * * Optimized algorithm with 2 multiplications in the 1-D kernel. * cK represents sqrt(2) * cos(K*pi/6). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_3x3'></a>jpeg_idct_3x3</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp2, tmp10, tmp12; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>3</font><font color='#5555FF'>*</font><font color='#979000'>3</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>3</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.707106781</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp10 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp12; tmp2 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp12 <font color='#5555FF'>-</font> tmp12; <font color='#009900'>/* Odd part */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp12, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1 */</font> <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>3</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>3</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>3</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 3 rows from work array, store into output array. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>3</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; tmp2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.707106781</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp10 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp12; tmp2 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp12 <font color='#5555FF'>-</font> tmp12; <font color='#009900'>/* Odd part */</font> tmp12 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp12, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>3</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a reduced-size 2x2 output block. * * Multiplication-less algorithm. */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_2x2'></a>jpeg_idct_2x2</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp1, tmp2, tmp3, tmp4, tmp5; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input. */</font> quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; <font color='#009900'>/* Column 0 */</font> tmp4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>coef_block[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp5 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>coef_block[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp4 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>2</font>; tmp0 <font color='#5555FF'>=</font> tmp4 <font color='#5555FF'>+</font> tmp5; tmp2 <font color='#5555FF'>=</font> tmp4 <font color='#5555FF'>-</font> tmp5; <font color='#009900'>/* Column 1 */</font> tmp4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>coef_block[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font><font color='#5555FF'>+</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font><font color='#5555FF'>+</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; tmp5 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>coef_block[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font><font color='#5555FF'>+</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font><font color='#5555FF'>+</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; tmp1 <font color='#5555FF'>=</font> tmp4 <font color='#5555FF'>+</font> tmp5; tmp3 <font color='#5555FF'>=</font> tmp4 <font color='#5555FF'>-</font> tmp5; <font color='#009900'>/* Pass 2: process 2 rows, store into output array. */</font> <font color='#009900'>/* Row 0 */</font> outptr <font color='#5555FF'>=</font> output_buf[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> output_col; outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>+</font> tmp1, <font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>-</font> tmp1, <font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; <font color='#009900'>/* Row 1 */</font> outptr <font color='#5555FF'>=</font> output_buf[<font color='#979000'>1</font>] <font color='#5555FF'>+</font> output_col; outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp2 <font color='#5555FF'>+</font> tmp3, <font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp2 <font color='#5555FF'>-</font> tmp3, <font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a reduced-size 1x1 output block. * * We hardly need an inverse DCT routine for this: just take the * average pixel value, which is one-eighth of the DC coefficient. */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_1x1'></a>jpeg_idct_1x1</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> <font color='#0000FF'><u>int</u></font> dcval; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; SHIFT_TEMPS <font color='#009900'>/* 1x1 is trivial: just take the DC coefficient divided by 8. */</font> quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; dcval <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>coef_block[<font color='#979000'>0</font>], quantptr[<font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; dcval <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>DESCALE</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> dcval, <font color='#979000'>3</font><font face='Lucida Console'>)</font>; output_buf[<font color='#979000'>0</font>][output_col] <font color='#5555FF'>=</font> range_limit[dcval <font color='#5555FF'>&</font> RANGE_MASK]; <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 9x9 output block. * * Optimized algorithm with 10 multiplications in the 1-D kernel. * cK represents sqrt(2) * cos(K*pi/18). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_9x9'></a>jpeg_idct_9x9</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp1, tmp2, tmp3, tmp10, tmp11, tmp12, tmp13, tmp14; INT32 z1, z2, z3, z4; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>9</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>8</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.707106781</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp1 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp3; tmp2 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp3 <font color='#5555FF'>-</font> tmp3; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.707106781</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp11 <font color='#5555FF'>=</font> tmp2 <font color='#5555FF'>+</font> tmp0; tmp14 <font color='#5555FF'>=</font> tmp2 <font color='#5555FF'>-</font> tmp0 <font color='#5555FF'>-</font> tmp0; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.328926049</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.083350441</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.245575608</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c8 */</font> tmp10 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp0 <font color='#5555FF'>-</font> tmp3; tmp12 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>-</font> tmp0 <font color='#5555FF'>+</font> tmp2; tmp13 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>-</font> tmp2 <font color='#5555FF'>+</font> tmp3; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c3 */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.909038955</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.483689525</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7 */</font> tmp0 <font color='#5555FF'>=</font> tmp2 <font color='#5555FF'>+</font> tmp3 <font color='#5555FF'>-</font> z2; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.392728481</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1 */</font> tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'>-</font> tmp1; tmp3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> tmp1; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z3 <font color='#5555FF'>-</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>8</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>+</font> tmp3, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>-</font> tmp3, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 9 rows from work array, store into output array. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>9</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.707106781</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp1 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp3; tmp2 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp3 <font color='#5555FF'>-</font> tmp3; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.707106781</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp11 <font color='#5555FF'>=</font> tmp2 <font color='#5555FF'>+</font> tmp0; tmp14 <font color='#5555FF'>=</font> tmp2 <font color='#5555FF'>-</font> tmp0 <font color='#5555FF'>-</font> tmp0; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.328926049</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.083350441</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.245575608</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c8 */</font> tmp10 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp0 <font color='#5555FF'>-</font> tmp3; tmp12 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>-</font> tmp0 <font color='#5555FF'>+</font> tmp2; tmp13 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>-</font> tmp2 <font color='#5555FF'>+</font> tmp3; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>7</font>]; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c3 */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.909038955</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.483689525</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7 */</font> tmp0 <font color='#5555FF'>=</font> tmp2 <font color='#5555FF'>+</font> tmp3 <font color='#5555FF'>-</font> z2; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.392728481</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1 */</font> tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'>-</font> tmp1; tmp3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> tmp1; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z3 <font color='#5555FF'>-</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>8</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>+</font> tmp3, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>-</font> tmp3, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>8</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 10x10 output block. * * Optimized algorithm with 12 multiplications in the 1-D kernel. * cK represents sqrt(2) * cos(K*pi/20). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_10x10'></a>jpeg_idct_10x10</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp10, tmp11, tmp12, tmp13, tmp14; INT32 tmp20, tmp21, tmp22, tmp23, tmp24; INT32 z1, z2, z3, z4, z5; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>10</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>8</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> z3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.144122806</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.437016024</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c8 */</font> tmp10 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> z1; tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> z2; tmp22 <font color='#5555FF'>=</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font>, <font color='#009900'>/* c0 = (c4-c8)*2 */</font> CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.831253876</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp12 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.513743148</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c6 */</font> tmp13 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.176250899</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c6 */</font> tmp20 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp12; tmp24 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp12; tmp21 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp13; tmp23 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp13; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>]<font face='Lucida Console'>)</font>; tmp11 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> z4; tmp13 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>-</font> z4; tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp13, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.309016994</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c3-c7)/2 */</font> z5 <font color='#5555FF'>=</font> z3 <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.951056516</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c3+c7)/2 */</font> z4 <font color='#5555FF'>=</font> z5 <font color='#5555FF'>+</font> tmp12; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.396802247</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> z2 <font color='#5555FF'>+</font> z4; <font color='#009900'>/* c1 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.221231742</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z2 <font color='#5555FF'>+</font> z4; <font color='#009900'>/* c9 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.587785252</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c1-c9)/2 */</font> z4 <font color='#5555FF'>=</font> z5 <font color='#5555FF'>-</font> tmp12 <font color='#5555FF'>-</font> <font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS <font color='#5555FF'>-</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp12 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> tmp13 <font color='#5555FF'>-</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> PASS1_BITS; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.260073511</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z2 <font color='#5555FF'>-</font> z4; <font color='#009900'>/* c3 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.642039522</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z2 <font color='#5555FF'>+</font> z4; <font color='#009900'>/* c7 */</font> <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>9</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>8</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 10 rows from work array, store into output array. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>10</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; z3 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.144122806</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.437016024</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c8 */</font> tmp10 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> z1; tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> z2; tmp22 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c0 = (c4-c8)*2 */</font> z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.831253876</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp12 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.513743148</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c6 */</font> tmp13 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.176250899</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c6 */</font> tmp20 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp12; tmp24 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp12; tmp21 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp13; tmp23 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp13; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; z3 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>7</font>]; tmp11 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> z4; tmp13 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>-</font> z4; tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp13, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.309016994</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c3-c7)/2 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.951056516</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c3+c7)/2 */</font> z4 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> tmp12; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.396802247</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> z2 <font color='#5555FF'>+</font> z4; <font color='#009900'>/* c1 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.221231742</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z2 <font color='#5555FF'>+</font> z4; <font color='#009900'>/* c9 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.587785252</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c1-c9)/2 */</font> z4 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> tmp12 <font color='#5555FF'>-</font> <font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS <font color='#5555FF'>-</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp12 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> tmp13<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS<font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z3; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.260073511</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z2 <font color='#5555FF'>-</font> z4; <font color='#009900'>/* c3 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.642039522</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z2 <font color='#5555FF'>+</font> z4; <font color='#009900'>/* c7 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>9</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>8</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>8</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 11x11 output block. * * Optimized algorithm with 24 multiplications in the 1-D kernel. * cK represents sqrt(2) * cos(K*pi/22). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_11x11'></a>jpeg_idct_11x11</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp10, tmp11, tmp12, tmp13, tmp14; INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25; INT32 z1, z2, z3, z4; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>11</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>8</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp10 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp10 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; tmp20 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>-</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.546640132</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c4 */</font> tmp23 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>-</font> z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.430815045</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c6 */</font> z4 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp24 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.155664402</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -(c2-c10) */</font> z4 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z2; tmp25 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.356927976</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp21 <font color='#5555FF'>=</font> tmp20 <font color='#5555FF'>+</font> tmp23 <font color='#5555FF'>+</font> tmp25 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.821790775</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c4+c10-c6 */</font> tmp20 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp25 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.115825087</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4+c6 */</font> tmp23 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp25 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.513598477</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6+c8 */</font> tmp24 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp25; tmp22 <font color='#5555FF'>=</font> tmp24 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.788749120</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c8+c10 */</font> tmp24 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.944413522</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#009900'>/* c2+c8 */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.390975730</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4+c10 */</font> tmp25 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.414213562</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c0 */</font> <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>]<font face='Lucida Console'>)</font>; tmp11 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> z3 <font color='#5555FF'>+</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.398430003</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9 */</font> tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.887983902</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3-c9 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.670361295</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5-c9 */</font> tmp13 <font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.366151574</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7-c9 */</font> tmp10 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>+</font> tmp13 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.923107866</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7+c5+c3-c1-2*c9 */</font> z1 <font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.163011579</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7+c9 */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.073276588</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c7+3*c9-c3 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.192193623</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c5-c7-c9 */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z4, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.798248910</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -(c1+c9) */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; tmp13 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.102458632</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c5+c9-c7 */</font> tmp14 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.467221301</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> <font color='#009900'>/* -(c5+c9) */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.001388905</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#009900'>/* c1-c9 */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.684843907</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c9 */</font> <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>10</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>9</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>8</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 11 rows from work array, store into output array. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>11</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp10 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp10 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; tmp20 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>-</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.546640132</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c4 */</font> tmp23 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>-</font> z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.430815045</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c6 */</font> z4 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp24 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.155664402</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -(c2-c10) */</font> z4 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z2; tmp25 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.356927976</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp21 <font color='#5555FF'>=</font> tmp20 <font color='#5555FF'>+</font> tmp23 <font color='#5555FF'>+</font> tmp25 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.821790775</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c4+c10-c6 */</font> tmp20 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp25 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.115825087</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4+c6 */</font> tmp23 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp25 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.513598477</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6+c8 */</font> tmp24 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp25; tmp22 <font color='#5555FF'>=</font> tmp24 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.788749120</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c8+c10 */</font> tmp24 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.944413522</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#009900'>/* c2+c8 */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.390975730</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4+c10 */</font> tmp25 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.414213562</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c0 */</font> <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>7</font>]; tmp11 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> z3 <font color='#5555FF'>+</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.398430003</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9 */</font> tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.887983902</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3-c9 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.670361295</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5-c9 */</font> tmp13 <font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.366151574</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7-c9 */</font> tmp10 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>+</font> tmp13 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.923107866</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7+c5+c3-c1-2*c9 */</font> z1 <font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.163011579</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7+c9 */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.073276588</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c7+3*c9-c3 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.192193623</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c5-c7-c9 */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z4, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.798248910</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -(c1+c9) */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; tmp13 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.102458632</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c5+c9-c7 */</font> tmp14 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.467221301</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> <font color='#009900'>/* -(c5+c9) */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.001388905</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#009900'>/* c1-c9 */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.684843907</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c9 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>10</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>9</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>8</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>8</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 12x12 output block. * * Optimized algorithm with 15 multiplications in the 1-D kernel. * cK represents sqrt(2) * cos(K*pi/24). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_12x12'></a>jpeg_idct_12x12</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25; INT32 z1, z2, z3, z4; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>12</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>8</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> z3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> tmp10 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> z4; tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> z4; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.366025404</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> z1 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; tmp12 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> z2; tmp21 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> tmp12; tmp24 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> tmp12; tmp12 <font color='#5555FF'>=</font> z4 <font color='#5555FF'>+</font> z2; tmp20 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp12; tmp25 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp12; tmp12 <font color='#5555FF'>=</font> z4 <font color='#5555FF'>-</font> z1 <font color='#5555FF'>-</font> z2; tmp22 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp12; tmp23 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp12; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>]<font face='Lucida Console'>)</font>; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.306562965</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* -c9 */</font> tmp10 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.860918669</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7 */</font> tmp12 <font color='#5555FF'>=</font> tmp15 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.261052384</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5-c7 */</font> tmp10 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp11 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.280143716</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1-c5 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>+</font> z4, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.045510580</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -(c7+c11) */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>+</font> tmp14 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.478575242</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c5-c7-c11 */</font> tmp13 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp15 <font color='#5555FF'>-</font> tmp11 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.586706681</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c11 */</font> tmp15 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.676326758</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#009900'>/* c7-c11 */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.982889723</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5+c7 */</font> z1 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z4; z2 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z3; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* c9 */</font> tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, FIX_0_765366865<font face='Lucida Console'>)</font>; <font color='#009900'>/* c3-c9 */</font> tmp14 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_1_847759065<font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c9 */</font> <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>11</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>10</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>9</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>8</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>+</font> tmp15, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>-</font> tmp15, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 12 rows from work array, store into output array. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>12</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; z3 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> tmp10 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> z4; tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> z4; z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.366025404</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> z1 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; z2 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; tmp12 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> z2; tmp21 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> tmp12; tmp24 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> tmp12; tmp12 <font color='#5555FF'>=</font> z4 <font color='#5555FF'>+</font> z2; tmp20 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp12; tmp25 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp12; tmp12 <font color='#5555FF'>=</font> z4 <font color='#5555FF'>-</font> z1 <font color='#5555FF'>-</font> z2; tmp22 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp12; tmp23 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp12; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>7</font>]; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.306562965</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* -c9 */</font> tmp10 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.860918669</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7 */</font> tmp12 <font color='#5555FF'>=</font> tmp15 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.261052384</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5-c7 */</font> tmp10 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp11 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.280143716</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1-c5 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>+</font> z4, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.045510580</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -(c7+c11) */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>+</font> tmp14 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.478575242</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c5-c7-c11 */</font> tmp13 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp15 <font color='#5555FF'>-</font> tmp11 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.586706681</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c11 */</font> tmp15 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.676326758</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#009900'>/* c7-c11 */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.982889723</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5+c7 */</font> z1 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z4; z2 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z3; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* c9 */</font> tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, FIX_0_765366865<font face='Lucida Console'>)</font>; <font color='#009900'>/* c3-c9 */</font> tmp14 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_1_847759065<font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c9 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>11</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>10</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>9</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>8</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>+</font> tmp15, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>-</font> tmp15, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>8</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 13x13 output block. * * Optimized algorithm with 29 multiplications in the 1-D kernel. * cK represents sqrt(2) * cos(K*pi/26). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_13x13'></a>jpeg_idct_13x13</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26; INT32 z1, z2, z3, z4; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>13</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>8</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> z1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; tmp10 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> z4; tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> z4; tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.155388986</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c4+c6)/2 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.096834934</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> z1; <font color='#009900'>/* (c4-c6)/2 */</font> tmp20 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.373119086</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>+</font> tmp13; <font color='#009900'>/* c2 */</font> tmp22 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.501487041</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> tmp12 <font color='#5555FF'>+</font> tmp13; <font color='#009900'>/* c10 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.316450131</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c8-c12)/2 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.486914739</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> z1; <font color='#009900'>/* (c8+c12)/2 */</font> tmp21 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.058554052</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> tmp12 <font color='#5555FF'>+</font> tmp13; <font color='#009900'>/* c6 */</font> tmp25 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.252223920</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>+</font> tmp13; <font color='#009900'>/* c4 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.435816023</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2-c10)/2 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.937303064</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z1; <font color='#009900'>/* (c2+c10)/2 */</font> tmp23 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.170464608</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> tmp12 <font color='#5555FF'>-</font> tmp13; <font color='#009900'>/* c12 */</font> tmp24 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.803364869</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>-</font> tmp13; <font color='#009900'>/* c8 */</font> tmp26 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.414213562</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> z1; <font color='#009900'>/* c0 */</font> <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>]<font face='Lucida Console'>)</font>; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.322312651</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.163874945</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp15 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z4; tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp15, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.937797057</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7 */</font> tmp10 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>+</font> tmp13 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.020082300</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7+c5+c3-c1 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.338443458</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c11 */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.837223564</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5+c9+c11-c3 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.572116027</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c5-c9-c11 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z4, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.163874945</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c5 */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp14; tmp13 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.205608352</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c5+c9-c7 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>+</font> z4, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.657217813</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c9 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp14; tmp13 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp14; tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp15, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.338443458</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c11 */</font> tmp14 <font color='#5555FF'>=</font> tmp15 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.318774355</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#009900'>/* c9-c11 */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.466105296</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1-c7 */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.937797057</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7 */</font> tmp14 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; tmp15 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.384515595</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#009900'>/* c3-c7 */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.742345811</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c11 */</font> <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>12</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>11</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>10</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>9</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>8</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>+</font> tmp15, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>-</font> tmp15, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 13 rows from work array, store into output array. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>13</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; z1 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; tmp10 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> z4; tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> z4; tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.155388986</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c4+c6)/2 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.096834934</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> z1; <font color='#009900'>/* (c4-c6)/2 */</font> tmp20 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.373119086</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>+</font> tmp13; <font color='#009900'>/* c2 */</font> tmp22 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.501487041</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> tmp12 <font color='#5555FF'>+</font> tmp13; <font color='#009900'>/* c10 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.316450131</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c8-c12)/2 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.486914739</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> z1; <font color='#009900'>/* (c8+c12)/2 */</font> tmp21 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.058554052</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> tmp12 <font color='#5555FF'>+</font> tmp13; <font color='#009900'>/* c6 */</font> tmp25 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.252223920</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>+</font> tmp13; <font color='#009900'>/* c4 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.435816023</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2-c10)/2 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.937303064</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z1; <font color='#009900'>/* (c2+c10)/2 */</font> tmp23 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.170464608</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> tmp12 <font color='#5555FF'>-</font> tmp13; <font color='#009900'>/* c12 */</font> tmp24 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.803364869</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>-</font> tmp13; <font color='#009900'>/* c8 */</font> tmp26 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.414213562</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> z1; <font color='#009900'>/* c0 */</font> <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>7</font>]; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.322312651</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.163874945</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp15 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z4; tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp15, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.937797057</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7 */</font> tmp10 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>+</font> tmp13 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.020082300</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7+c5+c3-c1 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.338443458</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c11 */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.837223564</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5+c9+c11-c3 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.572116027</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c5-c9-c11 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z4, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.163874945</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c5 */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp14; tmp13 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.205608352</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c5+c9-c7 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>+</font> z4, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.657217813</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c9 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp14; tmp13 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp14; tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp15, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.338443458</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c11 */</font> tmp14 <font color='#5555FF'>=</font> tmp15 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.318774355</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#009900'>/* c9-c11 */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.466105296</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1-c7 */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.937797057</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7 */</font> tmp14 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; tmp15 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.384515595</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#009900'>/* c3-c7 */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.742345811</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c11 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>12</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>11</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>10</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>9</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>8</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>+</font> tmp15, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>-</font> tmp15, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>8</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 14x14 output block. * * Optimized algorithm with 20 multiplications in the 1-D kernel. * cK represents sqrt(2) * cos(K*pi/28). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_14x14'></a>jpeg_idct_14x14</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26; INT32 z1, z2, z3, z4; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>14</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>8</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> z1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.274162392</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.314692123</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c12 */</font> z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.881747734</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c8 */</font> tmp10 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; tmp11 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp12 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> z4; tmp23 <font color='#5555FF'>=</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3 <font color='#5555FF'>-</font> z4<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font>, <font color='#009900'>/* c0 = (c4+c12-c8)*2 */</font> CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.105676686</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp13 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.273079590</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c6 */</font> tmp14 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.719280954</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6+c10 */</font> tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.613604268</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#009900'>/* c10 */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.378756276</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp20 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp13; tmp26 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp13; tmp21 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp14; tmp25 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp14; tmp22 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp15; tmp24 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>-</font> tmp15; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>]<font face='Lucida Console'>)</font>; tmp13 <font color='#5555FF'>=</font> z4 <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; tmp14 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.334852607</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp14, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.197448846</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp10 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>+</font> tmp13 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.126980169</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c5-c1 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp14, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.752406978</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9 */</font> tmp16 <font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.061150426</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9+c11-c13 */</font> z1 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z2; tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.467085129</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> tmp13; <font color='#009900'>/* c11 */</font> tmp16 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp15; z1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z4; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.158341681</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> tmp13; <font color='#009900'>/* -c13 */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z4 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.424103948</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3-c9-c13 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z4 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.373959773</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c5-c13 */</font> z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.405321284</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1 */</font> tmp14 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z4 <font color='#5555FF'>+</font> tmp13 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.6906431334</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c9-c11 */</font> tmp15 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z4 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.674957567</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c11-c5 */</font> tmp13 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> PASS1_BITS; <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>13</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>12</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>11</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>10</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>9</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>+</font> tmp15, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>8</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>-</font> tmp15, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>+</font> tmp16, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>-</font> tmp16, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 14 rows from work array, store into output array. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>14</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; z1 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.274162392</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.314692123</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c12 */</font> z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.881747734</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c8 */</font> tmp10 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; tmp11 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp12 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> z4; tmp23 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3 <font color='#5555FF'>-</font> z4<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c0 = (c4+c12-c8)*2 */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.105676686</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp13 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.273079590</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c6 */</font> tmp14 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.719280954</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6+c10 */</font> tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.613604268</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#009900'>/* c10 */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.378756276</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp20 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp13; tmp26 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp13; tmp21 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp14; tmp25 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp14; tmp22 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp15; tmp24 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>-</font> tmp15; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>7</font>]; z4 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; tmp14 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.334852607</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp14, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.197448846</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp10 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>+</font> z4 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.126980169</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c5-c1 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp14, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.752406978</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9 */</font> tmp16 <font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.061150426</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9+c11-c13 */</font> z1 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z2; tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.467085129</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z4; <font color='#009900'>/* c11 */</font> tmp16 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp15; tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.158341681</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z4; <font color='#009900'>/* -c13 */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.424103948</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3-c9-c13 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.373959773</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c5-c13 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.405321284</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1 */</font> tmp14 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>+</font> z4 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.6906431334</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c9-c11 */</font> tmp15 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.674957567</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c11-c5 */</font> tmp13 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS<font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> z4; <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>13</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>12</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>11</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>10</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>9</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>+</font> tmp15, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>8</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>-</font> tmp15, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>+</font> tmp16, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>-</font> tmp16, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>8</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 15x15 output block. * * Optimized algorithm with 22 multiplications in the 1-D kernel. * cK represents sqrt(2) * cos(K*pi/30). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_15x15'></a>jpeg_idct_15x15</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26, tmp27; INT32 z1, z2, z3, z4; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>15</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>8</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> z1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.437016024</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c12 */</font> tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.144122806</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp12 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> tmp10; tmp13 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> tmp11; z1 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp10<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>1</font>; <font color='#009900'>/* c0 = (c6-c12)*2 */</font> z4 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>-</font> z3; z3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.337628990</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2+c4)/2 */</font> tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.045680613</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2-c4)/2 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.439773946</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4+c14 */</font> tmp20 <font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>+</font> tmp10 <font color='#5555FF'>+</font> tmp11; tmp23 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>-</font> tmp10 <font color='#5555FF'>+</font> tmp11 <font color='#5555FF'>+</font> z2; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.547059574</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c8+c14)/2 */</font> tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.399234004</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c8-c14)/2 */</font> tmp25 <font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>-</font> tmp10 <font color='#5555FF'>-</font> tmp11; tmp26 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp10 <font color='#5555FF'>-</font> tmp11 <font color='#5555FF'>-</font> z2; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.790569415</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c6+c12)/2 */</font> tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.353553391</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c6-c12)/2 */</font> tmp21 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp10 <font color='#5555FF'>+</font> tmp11; tmp24 <font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>-</font> tmp10 <font color='#5555FF'>+</font> tmp11; tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp11; tmp22 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> tmp11; <font color='#009900'>/* c10 = c6-c12 */</font> tmp27 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> tmp11 <font color='#5555FF'>-</font> tmp11; <font color='#009900'>/* c0 = (c6-c12)*2 */</font> <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>]<font face='Lucida Console'>)</font>; tmp13 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>-</font> z4; tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> tmp13, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.831253876</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9 */</font> tmp11 <font color='#5555FF'>=</font> tmp15 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.513743148</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3-c9 */</font> tmp14 <font color='#5555FF'>=</font> tmp15 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp13, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.176250899</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c9 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.831253876</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c9 */</font> tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.344997024</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c3 */</font> z2 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> z4; tmp12 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.406466353</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1 */</font> tmp10 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.457431844</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> tmp15; <font color='#009900'>/* c1+c7 */</font> tmp16 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.112434820</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> tmp13; <font color='#009900'>/* c1-c13 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z3; <font color='#009900'>/* c5 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.575212477</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c11 */</font> tmp13 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.475753014</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z3; <font color='#009900'>/* c7-c11 */</font> tmp15 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.869244010</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> z3; <font color='#009900'>/* c11+c13 */</font> <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>14</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>13</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>12</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>11</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>10</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>+</font> tmp15, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>9</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>-</font> tmp15, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>+</font> tmp16, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>8</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>-</font> tmp16, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp27, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 15 rows from work array, store into output array. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>15</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; z1 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.437016024</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c12 */</font> tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.144122806</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp12 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> tmp10; tmp13 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> tmp11; z1 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp10<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>1</font>; <font color='#009900'>/* c0 = (c6-c12)*2 */</font> z4 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>-</font> z3; z3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.337628990</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2+c4)/2 */</font> tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.045680613</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2-c4)/2 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.439773946</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4+c14 */</font> tmp20 <font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>+</font> tmp10 <font color='#5555FF'>+</font> tmp11; tmp23 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>-</font> tmp10 <font color='#5555FF'>+</font> tmp11 <font color='#5555FF'>+</font> z2; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.547059574</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c8+c14)/2 */</font> tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.399234004</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c8-c14)/2 */</font> tmp25 <font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>-</font> tmp10 <font color='#5555FF'>-</font> tmp11; tmp26 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp10 <font color='#5555FF'>-</font> tmp11 <font color='#5555FF'>-</font> z2; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.790569415</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c6+c12)/2 */</font> tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.353553391</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c6-c12)/2 */</font> tmp21 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp10 <font color='#5555FF'>+</font> tmp11; tmp24 <font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>-</font> tmp10 <font color='#5555FF'>+</font> tmp11; tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp11; tmp22 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> tmp11; <font color='#009900'>/* c10 = c6-c12 */</font> tmp27 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> tmp11 <font color='#5555FF'>-</font> tmp11; <font color='#009900'>/* c0 = (c6-c12)*2 */</font> <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>7</font>]; tmp13 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>-</font> z4; tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> tmp13, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.831253876</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9 */</font> tmp11 <font color='#5555FF'>=</font> tmp15 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.513743148</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3-c9 */</font> tmp14 <font color='#5555FF'>=</font> tmp15 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp13, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.176250899</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c9 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.831253876</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c9 */</font> tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.344997024</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c3 */</font> z2 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> z4; tmp12 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.406466353</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1 */</font> tmp10 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.457431844</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> tmp15; <font color='#009900'>/* c1+c7 */</font> tmp16 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.112434820</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> tmp13; <font color='#009900'>/* c1-c13 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z3; <font color='#009900'>/* c5 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.575212477</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c11 */</font> tmp13 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.475753014</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z3; <font color='#009900'>/* c7-c11 */</font> tmp15 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.869244010</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> z3; <font color='#009900'>/* c11+c13 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>14</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>13</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>12</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>11</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>10</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>+</font> tmp15, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>9</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>-</font> tmp15, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>+</font> tmp16, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>8</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>-</font> tmp16, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp27, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>8</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 16x16 output block. * * Optimized algorithm with 28 multiplications in the 1-D kernel. * cK represents sqrt(2) * cos(K*pi/32). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_16x16'></a>jpeg_idct_16x16</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp1, tmp2, tmp3, tmp10, tmp11, tmp12, tmp13; INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26, tmp27; INT32 z1, z2, z3, z4; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>16</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>8</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>1</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.306562965</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4[16] = c2[8] */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* c12[16] = c6[8] */</font> tmp10 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp1; tmp11 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp1; tmp12 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp2; tmp13 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp2; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> z2; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.275899379</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c14[16] = c7[8] */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.387039845</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2[16] = c1[8] */</font> tmp0 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_2_562915447<font face='Lucida Console'>)</font>; <font color='#009900'>/* (c6+c2)[16] = (c3+c1)[8] */</font> tmp1 <font color='#5555FF'>=</font> z4 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, FIX_0_899976223<font face='Lucida Console'>)</font>; <font color='#009900'>/* (c6-c14)[16] = (c3-c7)[8] */</font> tmp2 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.601344887</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2-c10)[16] = (c1-c5)[8] */</font> tmp3 <font color='#5555FF'>=</font> z4 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.509795579</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c10-c14)[16] = (c5-c7)[8] */</font> tmp20 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp0; tmp27 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp0; tmp21 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp1; tmp26 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>-</font> tmp1; tmp22 <font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>+</font> tmp2; tmp25 <font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>-</font> tmp2; tmp23 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp3; tmp24 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp3; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>]<font face='Lucida Console'>)</font>; tmp11 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.353318001</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.247225013</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.093201867</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7 */</font> tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.897167586</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9 */</font> tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.666655658</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c11 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.410524528</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c13 */</font> tmp0 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp2 <font color='#5555FF'>+</font> tmp3 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.286341144</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7+c5+c3-c1 */</font> tmp13 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp11 <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.835730603</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9+c11+c13-c15 */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.138617169</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c15 */</font> tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.071888074</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9+c11-c3-c15 */</font> tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.125726048</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5+c7+c15-c3 */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.407403738</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1 */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.766367282</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c11-c9-c13 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.971951411</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c5+c13-c7 */</font> z2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z4; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.666655658</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c11 */</font> tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; tmp3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.065388962</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c11+c15-c7 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.247225013</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c5 */</font> tmp10 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>3.141271809</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c5+c9-c13 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>+</font> z4, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.353318001</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c3 */</font> tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; tmp3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4 <font color='#5555FF'>-</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.410524528</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c13 */</font> tmp10 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>15</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>14</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>13</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp3, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>12</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp3, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>11</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>10</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>9</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp27 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>8</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp27 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 16 rows from work array, store into output array. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>16</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.306562965</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4[16] = c2[8] */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* c12[16] = c6[8] */</font> tmp10 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp1; tmp11 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp1; tmp12 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp2; tmp13 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp2; z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; z3 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> z2; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.275899379</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c14[16] = c7[8] */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.387039845</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2[16] = c1[8] */</font> tmp0 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_2_562915447<font face='Lucida Console'>)</font>; <font color='#009900'>/* (c6+c2)[16] = (c3+c1)[8] */</font> tmp1 <font color='#5555FF'>=</font> z4 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, FIX_0_899976223<font face='Lucida Console'>)</font>; <font color='#009900'>/* (c6-c14)[16] = (c3-c7)[8] */</font> tmp2 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.601344887</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2-c10)[16] = (c1-c5)[8] */</font> tmp3 <font color='#5555FF'>=</font> z4 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.509795579</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c10-c14)[16] = (c5-c7)[8] */</font> tmp20 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp0; tmp27 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp0; tmp21 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp1; tmp26 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>-</font> tmp1; tmp22 <font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>+</font> tmp2; tmp25 <font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>-</font> tmp2; tmp23 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp3; tmp24 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp3; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>7</font>]; tmp11 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.353318001</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.247225013</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.093201867</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7 */</font> tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.897167586</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9 */</font> tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.666655658</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c11 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.410524528</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c13 */</font> tmp0 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp2 <font color='#5555FF'>+</font> tmp3 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.286341144</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7+c5+c3-c1 */</font> tmp13 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp11 <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.835730603</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9+c11+c13-c15 */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.138617169</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c15 */</font> tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.071888074</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9+c11-c3-c15 */</font> tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.125726048</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5+c7+c15-c3 */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.407403738</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1 */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.766367282</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c11-c9-c13 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.971951411</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c5+c13-c7 */</font> z2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z4; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.666655658</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c11 */</font> tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; tmp3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.065388962</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c11+c15-c7 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.247225013</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c5 */</font> tmp10 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>3.141271809</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c5+c9-c13 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>+</font> z4, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.353318001</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c3 */</font> tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; tmp3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4 <font color='#5555FF'>-</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.410524528</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c13 */</font> tmp10 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>15</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>14</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>13</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp3, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>12</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp3, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>11</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>10</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>9</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp27 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>8</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp27 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>8</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 16x8 output block. * * 8-point IDCT in pass 1 (columns), 16-point in pass 2 (rows). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_16x8'></a>jpeg_idct_16x8</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp1, tmp2, tmp3, tmp10, tmp11, tmp12, tmp13; INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26, tmp27; INT32 z1, z2, z3, z4; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>8</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> <font color='#009900'>/* Note results are scaled up by sqrt(8) compared to a true IDCT; */</font> <font color='#009900'>/* furthermore, we scale the results by 2**PASS1_BITS. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> DCTSIZE; ctr <font color='#5555FF'>></font> <font color='#979000'>0</font>; ctr<font color='#5555FF'>-</font><font color='#5555FF'>-</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Due to quantization, we will usually find that many of the input * coefficients are zero, especially the AC terms. We can exploit this * by short-circuiting the IDCT calculation for any column in which all * the AC terms are zero. In that case each output is equal to the * DC coefficient (with scale factor as needed). * With typical images and quantization tables, half or more of the * column DCT calculations can be simplified this way. */</font> <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* AC terms all zero */</font> <font color='#0000FF'><u>int</u></font> dcval <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> PASS1_BITS; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> dcval; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> dcval; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> dcval; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> dcval; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> dcval; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> dcval; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> dcval; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> dcval; inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; <font color='#009900'>/* advance pointers to next column */</font> quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; <font color='#0000FF'>continue</font>; <b>}</b> <font color='#009900'>/* Even part: reverse the even part of the forward DCT. */</font> <font color='#009900'>/* The rotator is sqrt(2)*c(-6). */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_0_541196100<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_0_765366865<font face='Lucida Console'>)</font>; tmp3 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, FIX_1_847759065<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z3 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> z2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> z3; tmp1 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>-</font> z3; tmp10 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp2; tmp13 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp2; tmp11 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp3; tmp12 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>-</font> tmp3; <font color='#009900'>/* Odd part per figure 8; the matrix is unitary and hence its * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>]<font face='Lucida Console'>)</font>; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp2; z3 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp3; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_1_175875602<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * c3 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> FIX_1_961570560<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c3-c5) */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#5555FF'>-</font> FIX_0_390180644<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (c5-c3) */</font> z2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; z3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>+</font> tmp3, <font color='#5555FF'>-</font> FIX_0_899976223<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (c7-c3) */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0, FIX_0_298631336<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c1+c3+c5-c7) */</font> tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp3, FIX_1_501321110<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3-c5-c7) */</font> tmp0 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; tmp3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp1 <font color='#5555FF'>+</font> tmp2, <font color='#5555FF'>-</font> FIX_2_562915447<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c1-c3) */</font> tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp1, FIX_2_053119869<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3-c5+c7) */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp2, FIX_3_072711026<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3+c5-c7) */</font> tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; <font color='#009900'>/* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */</font> wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp3, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp3, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; <font color='#009900'>/* advance pointers to next column */</font> quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 8 rows from work array, store into output array. * 16-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/32). */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>8</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.306562965</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4[16] = c2[8] */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* c12[16] = c6[8] */</font> tmp10 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp1; tmp11 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp1; tmp12 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp2; tmp13 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp2; z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; z3 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> z2; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.275899379</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c14[16] = c7[8] */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.387039845</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2[16] = c1[8] */</font> tmp0 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_2_562915447<font face='Lucida Console'>)</font>; <font color='#009900'>/* (c6+c2)[16] = (c3+c1)[8] */</font> tmp1 <font color='#5555FF'>=</font> z4 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, FIX_0_899976223<font face='Lucida Console'>)</font>; <font color='#009900'>/* (c6-c14)[16] = (c3-c7)[8] */</font> tmp2 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.601344887</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2-c10)[16] = (c1-c5)[8] */</font> tmp3 <font color='#5555FF'>=</font> z4 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.509795579</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c10-c14)[16] = (c5-c7)[8] */</font> tmp20 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp0; tmp27 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp0; tmp21 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp1; tmp26 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>-</font> tmp1; tmp22 <font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>+</font> tmp2; tmp25 <font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>-</font> tmp2; tmp23 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp3; tmp24 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp3; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>7</font>]; tmp11 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.353318001</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.247225013</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.093201867</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7 */</font> tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.897167586</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9 */</font> tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.666655658</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c11 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.410524528</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c13 */</font> tmp0 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp2 <font color='#5555FF'>+</font> tmp3 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.286341144</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7+c5+c3-c1 */</font> tmp13 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp11 <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.835730603</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9+c11+c13-c15 */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.138617169</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c15 */</font> tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.071888074</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9+c11-c3-c15 */</font> tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.125726048</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5+c7+c15-c3 */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.407403738</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1 */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.766367282</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c11-c9-c13 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.971951411</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c5+c13-c7 */</font> z2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z4; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.666655658</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c11 */</font> tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; tmp3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.065388962</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c11+c15-c7 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.247225013</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c5 */</font> tmp10 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>3.141271809</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c5+c9-c13 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>+</font> z4, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.353318001</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c3 */</font> tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; tmp3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4 <font color='#5555FF'>-</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.410524528</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c13 */</font> tmp10 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>15</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>14</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>13</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp3, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>12</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp3, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>11</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>10</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>9</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp27 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>8</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp27 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>8</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 14x7 output block. * * 7-point IDCT in pass 1 (columns), 14-point in pass 2 (rows). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_14x7'></a>jpeg_idct_14x7</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26; INT32 z1, z2, z3, z4; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>7</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. * 7-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/14). */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>8</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp23 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp23 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp23 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; tmp20 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>-</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.881747734</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> tmp22 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.314692123</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp21 <font color='#5555FF'>=</font> tmp20 <font color='#5555FF'>+</font> tmp22 <font color='#5555FF'>+</font> tmp23 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.841218003</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c4-c6 */</font> tmp10 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; z2 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> tmp10; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.274162392</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> tmp23; <font color='#009900'>/* c2 */</font> tmp20 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.077722536</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c4-c6 */</font> tmp22 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.470602249</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c4+c6 */</font> tmp23 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.414213562</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c0 */</font> <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.935414347</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c3+c1-c5)/2 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.170262339</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c3+c5-c1)/2 */</font> tmp10 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp12; tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp12; tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.378756276</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c1 */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp12; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.613604268</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp10 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.870828693</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c1-c5 */</font> <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 7 rows from work array, store into output array. * 14-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/28). */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>7</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; z1 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.274162392</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.314692123</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c12 */</font> z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.881747734</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c8 */</font> tmp10 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; tmp11 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp12 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> z4; tmp23 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3 <font color='#5555FF'>-</font> z4<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c0 = (c4+c12-c8)*2 */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.105676686</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp13 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.273079590</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c6 */</font> tmp14 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.719280954</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6+c10 */</font> tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.613604268</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#009900'>/* c10 */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.378756276</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp20 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp13; tmp26 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp13; tmp21 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp14; tmp25 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp14; tmp22 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp15; tmp24 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>-</font> tmp15; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>7</font>]; z4 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; tmp14 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.334852607</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp14, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.197448846</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp10 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>+</font> z4 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.126980169</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c5-c1 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp14, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.752406978</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9 */</font> tmp16 <font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.061150426</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9+c11-c13 */</font> z1 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z2; tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.467085129</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z4; <font color='#009900'>/* c11 */</font> tmp16 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp15; tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.158341681</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z4; <font color='#009900'>/* -c13 */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.424103948</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3-c9-c13 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.373959773</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c5-c13 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.405321284</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1 */</font> tmp14 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>+</font> z4 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.6906431334</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c9-c11 */</font> tmp15 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.674957567</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c11-c5 */</font> tmp13 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS<font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> z4; <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>13</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>12</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>11</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>10</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>9</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>+</font> tmp15, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>8</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>-</font> tmp15, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>+</font> tmp16, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>-</font> tmp16, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>8</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 12x6 output block. * * 6-point IDCT in pass 1 (columns), 12-point in pass 2 (rows). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_12x6'></a>jpeg_idct_12x6</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25; INT32 z1, z2, z3, z4; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>6</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12). */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>8</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp10 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp10 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; tmp20 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp12, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.707106781</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> tmp11 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp20; tmp21 <font color='#5555FF'>=</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp20 <font color='#5555FF'>-</font> tmp20, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; tmp20 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp20, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp20 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp10; tmp22 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp10; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.366025404</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp10 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS<font face='Lucida Console'>)</font>; tmp12 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS<font face='Lucida Console'>)</font>; tmp11 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2 <font color='#5555FF'>-</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> PASS1_BITS; <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 6 rows from work array, store into output array. * 12-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/24). */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>6</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; z3 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> tmp10 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> z4; tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> z4; z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.366025404</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> z1 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; z2 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; tmp12 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> z2; tmp21 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> tmp12; tmp24 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> tmp12; tmp12 <font color='#5555FF'>=</font> z4 <font color='#5555FF'>+</font> z2; tmp20 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp12; tmp25 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp12; tmp12 <font color='#5555FF'>=</font> z4 <font color='#5555FF'>-</font> z1 <font color='#5555FF'>-</font> z2; tmp22 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp12; tmp23 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp12; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>7</font>]; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.306562965</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* -c9 */</font> tmp10 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.860918669</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7 */</font> tmp12 <font color='#5555FF'>=</font> tmp15 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.261052384</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5-c7 */</font> tmp10 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp11 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.280143716</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1-c5 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>+</font> z4, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.045510580</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -(c7+c11) */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>+</font> tmp14 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.478575242</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c5-c7-c11 */</font> tmp13 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp15 <font color='#5555FF'>-</font> tmp11 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.586706681</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c11 */</font> tmp15 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.676326758</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#009900'>/* c7-c11 */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.982889723</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5+c7 */</font> z1 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z4; z2 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z3; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* c9 */</font> tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, FIX_0_765366865<font face='Lucida Console'>)</font>; <font color='#009900'>/* c3-c9 */</font> tmp14 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_1_847759065<font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c9 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>11</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>10</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>9</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>8</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>+</font> tmp15, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>-</font> tmp15, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>8</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 10x5 output block. * * 5-point IDCT in pass 1 (columns), 10-point in pass 2 (rows). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_10x5'></a>jpeg_idct_10x5</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp10, tmp11, tmp12, tmp13, tmp14; INT32 tmp20, tmp21, tmp22, tmp23, tmp24; INT32 z1, z2, z3, z4; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>5</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. * 5-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/10). */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>8</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp12 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>+</font> tmp14, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.790569415</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2+c4)/2 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>-</font> tmp14, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.353553391</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2-c4)/2 */</font> z3 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> z2; tmp10 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> z1; tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> z1; tmp12 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>2</font>; <font color='#009900'>/* Odd part */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.831253876</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp13 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.513743148</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1-c3 */</font> tmp14 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.176250899</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c3 */</font> <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 5 rows from work array, store into output array. * 10-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/20). */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>5</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; z3 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.144122806</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.437016024</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c8 */</font> tmp10 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> z1; tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> z2; tmp22 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c0 = (c4-c8)*2 */</font> z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.831253876</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp12 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.513743148</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c6 */</font> tmp13 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.176250899</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c6 */</font> tmp20 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp12; tmp24 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp12; tmp21 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp13; tmp23 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp13; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; z3 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z4 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>7</font>]; tmp11 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> z4; tmp13 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>-</font> z4; tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp13, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.309016994</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c3-c7)/2 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.951056516</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c3+c7)/2 */</font> z4 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> tmp12; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.396802247</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> z2 <font color='#5555FF'>+</font> z4; <font color='#009900'>/* c1 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.221231742</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z2 <font color='#5555FF'>+</font> z4; <font color='#009900'>/* c9 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.587785252</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c1-c9)/2 */</font> z4 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> tmp12 <font color='#5555FF'>-</font> <font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS <font color='#5555FF'>-</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp12 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> tmp13<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS<font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z3; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.260073511</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z2 <font color='#5555FF'>-</font> z4; <font color='#009900'>/* c3 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.642039522</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z2 <font color='#5555FF'>+</font> z4; <font color='#009900'>/* c7 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>9</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>8</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>8</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 8x4 output block. * * 4-point IDCT in pass 1 (columns), 8-point in pass 2 (rows). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_8x4'></a>jpeg_idct_8x4</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp1, tmp2, tmp3; INT32 tmp10, tmp11, tmp12, tmp13; INT32 z1, z2, z3; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>4</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. * 4-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/16). */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>8</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; tmp10 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>+</font> tmp2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> PASS1_BITS; tmp12 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>-</font> tmp2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> PASS1_BITS; <font color='#009900'>/* Odd part */</font> <font color='#009900'>/* Same rotation as in the even part of the 8x8 LL&M IDCT */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> z1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_0_765366865<font face='Lucida Console'>)</font>, <font color='#009900'>/* c2-c6 */</font> CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, FIX_1_847759065<font face='Lucida Console'>)</font>, <font color='#009900'>/* c2+c6 */</font> CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp2<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp2<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process rows from work array, store into output array. */</font> <font color='#009900'>/* Note that we must descale the results by a factor of 8 == 2**3, */</font> <font color='#009900'>/* and also undo the PASS1_BITS scaling. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>4</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part: reverse the even part of the forward DCT. */</font> <font color='#009900'>/* The rotator is sqrt(2)*c(-6). */</font> z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_0_541196100<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_0_765366865<font face='Lucida Console'>)</font>; tmp3 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, FIX_1_847759065<font face='Lucida Console'>)</font>; <font color='#009900'>/* Add fudge factor here for final descale. */</font> z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; tmp0 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; tmp1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z2 <font color='#5555FF'>-</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; tmp10 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp2; tmp13 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp2; tmp11 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp3; tmp12 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>-</font> tmp3; <font color='#009900'>/* Odd part per figure 8; the matrix is unitary and hence its * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. */</font> tmp0 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>7</font>]; tmp1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; tmp2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; tmp3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp2; z3 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp3; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_1_175875602<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * c3 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> FIX_1_961570560<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c3-c5) */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#5555FF'>-</font> FIX_0_390180644<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (c5-c3) */</font> z2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; z3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>+</font> tmp3, <font color='#5555FF'>-</font> FIX_0_899976223<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (c7-c3) */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0, FIX_0_298631336<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c1+c3+c5-c7) */</font> tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp3, FIX_1_501321110<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3-c5-c7) */</font> tmp0 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; tmp3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp1 <font color='#5555FF'>+</font> tmp2, <font color='#5555FF'>-</font> FIX_2_562915447<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c1-c3) */</font> tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp1, FIX_2_053119869<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3-c5+c7) */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp2, FIX_3_072711026<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3+c5-c7) */</font> tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; <font color='#009900'>/* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp3, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp3, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> DCTSIZE; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a reduced-size 6x3 output block. * * 3-point IDCT in pass 1 (columns), 6-point in pass 2 (rows). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_6x3'></a>jpeg_idct_6x3</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp1, tmp2, tmp10, tmp11, tmp12; INT32 z1, z2, z3; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>3</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. * 3-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/6). */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>6</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.707106781</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp10 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp12; tmp2 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp12 <font color='#5555FF'>-</font> tmp12; <font color='#009900'>/* Odd part */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp12, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1 */</font> <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 3 rows from work array, store into output array. * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12). */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>3</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; tmp2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.707106781</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> tmp1 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp10; tmp11 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp10 <font color='#5555FF'>-</font> tmp10; tmp10 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp10 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp0; tmp12 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>-</font> tmp0; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.366025404</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp0 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS<font face='Lucida Console'>)</font>; tmp1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2 <font color='#5555FF'>-</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>6</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 4x2 output block. * * 2-point IDCT in pass 1 (columns), 4-point in pass 2 (rows). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_4x2'></a>jpeg_idct_4x2</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp2, tmp10, tmp12; INT32 z1, z2, z3; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; INT32 <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; INT32 workspace[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>2</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>4</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; <font color='#009900'>/* Odd part */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp0; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp0; <b>}</b> <font color='#009900'>/* Pass 2: process 2 rows from work array, store into output array. * 4-point IDCT kernel, * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point IDCT]. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>2</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>=</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>2</font><font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> wsptr[<font color='#979000'>2</font>]; tmp10 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>+</font> tmp2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; tmp12 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>-</font> tmp2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; <font color='#009900'>/* Odd part */</font> <font color='#009900'>/* Same rotation as in the even part of the 8x8 LL&M IDCT */</font> z2 <font color='#5555FF'>=</font> wsptr[<font color='#979000'>1</font>]; z3 <font color='#5555FF'>=</font> wsptr[<font color='#979000'>3</font>]; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp0 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_0_765366865<font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c6 */</font> tmp2 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, FIX_1_847759065<font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c6 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>4</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 2x1 output block. * * 1-point IDCT in pass 1 (columns), 2-point in pass 2 (rows). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_2x1'></a>jpeg_idct_2x1</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp10; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; SHIFT_TEMPS <font color='#009900'>/* Pass 1: empty. */</font> <font color='#009900'>/* Pass 2: process 1 row from input, store into output array. */</font> quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; outptr <font color='#5555FF'>=</font> output_buf[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>coef_block[<font color='#979000'>0</font>], quantptr[<font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp10 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>2</font>; <font color='#009900'>/* Odd part */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>coef_block[<font color='#979000'>1</font>], quantptr[<font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, <font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, <font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 8x16 output block. * * 16-point IDCT in pass 1 (columns), 8-point in pass 2 (rows). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_8x16'></a>jpeg_idct_8x16</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp1, tmp2, tmp3, tmp10, tmp11, tmp12, tmp13; INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26, tmp27; INT32 z1, z2, z3, z4; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>16</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. * 16-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/32). */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>8</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.306562965</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4[16] = c2[8] */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* c12[16] = c6[8] */</font> tmp10 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp1; tmp11 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp1; tmp12 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp2; tmp13 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp2; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> z2; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.275899379</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c14[16] = c7[8] */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.387039845</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2[16] = c1[8] */</font> tmp0 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_2_562915447<font face='Lucida Console'>)</font>; <font color='#009900'>/* (c6+c2)[16] = (c3+c1)[8] */</font> tmp1 <font color='#5555FF'>=</font> z4 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, FIX_0_899976223<font face='Lucida Console'>)</font>; <font color='#009900'>/* (c6-c14)[16] = (c3-c7)[8] */</font> tmp2 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.601344887</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2-c10)[16] = (c1-c5)[8] */</font> tmp3 <font color='#5555FF'>=</font> z4 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.509795579</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c10-c14)[16] = (c5-c7)[8] */</font> tmp20 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp0; tmp27 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp0; tmp21 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp1; tmp26 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>-</font> tmp1; tmp22 <font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>+</font> tmp2; tmp25 <font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>-</font> tmp2; tmp23 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp3; tmp24 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp3; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>]<font face='Lucida Console'>)</font>; tmp11 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.353318001</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.247225013</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.093201867</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7 */</font> tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.897167586</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9 */</font> tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.666655658</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c11 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.410524528</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c13 */</font> tmp0 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp2 <font color='#5555FF'>+</font> tmp3 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.286341144</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7+c5+c3-c1 */</font> tmp13 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp11 <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.835730603</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9+c11+c13-c15 */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.138617169</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c15 */</font> tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.071888074</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9+c11-c3-c15 */</font> tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.125726048</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5+c7+c15-c3 */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.407403738</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1 */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.766367282</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c11-c9-c13 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.971951411</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c5+c13-c7 */</font> z2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z4; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.666655658</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c11 */</font> tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; tmp3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.065388962</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c11+c15-c7 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.247225013</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c5 */</font> tmp10 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>3.141271809</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c5+c9-c13 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>+</font> z4, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.353318001</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c3 */</font> tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; tmp3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4 <font color='#5555FF'>-</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.410524528</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c13 */</font> tmp10 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>15</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>14</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>13</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp3, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>12</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp3, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>11</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>10</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>9</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp27 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>8</font><font color='#5555FF'>*</font><font color='#979000'>8</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp27 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process rows from work array, store into output array. */</font> <font color='#009900'>/* Note that we must descale the results by a factor of 8 == 2**3, */</font> <font color='#009900'>/* and also undo the PASS1_BITS scaling. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>16</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part: reverse the even part of the forward DCT. */</font> <font color='#009900'>/* The rotator is sqrt(2)*c(-6). */</font> z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_0_541196100<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_0_765366865<font face='Lucida Console'>)</font>; tmp3 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, FIX_1_847759065<font face='Lucida Console'>)</font>; <font color='#009900'>/* Add fudge factor here for final descale. */</font> z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; tmp0 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; tmp1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z2 <font color='#5555FF'>-</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; tmp10 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp2; tmp13 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp2; tmp11 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp3; tmp12 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>-</font> tmp3; <font color='#009900'>/* Odd part per figure 8; the matrix is unitary and hence its * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. */</font> tmp0 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>7</font>]; tmp1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; tmp2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; tmp3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp2; z3 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp3; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_1_175875602<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * c3 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> FIX_1_961570560<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c3-c5) */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#5555FF'>-</font> FIX_0_390180644<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (c5-c3) */</font> z2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; z3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>+</font> tmp3, <font color='#5555FF'>-</font> FIX_0_899976223<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (c7-c3) */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0, FIX_0_298631336<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c1+c3+c5-c7) */</font> tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp3, FIX_1_501321110<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3-c5-c7) */</font> tmp0 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; tmp3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp1 <font color='#5555FF'>+</font> tmp2, <font color='#5555FF'>-</font> FIX_2_562915447<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c1-c3) */</font> tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp1, FIX_2_053119869<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3-c5+c7) */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp2, FIX_3_072711026<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3+c5-c7) */</font> tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; <font color='#009900'>/* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp3, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>7</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp3, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> DCTSIZE; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 7x14 output block. * * 14-point IDCT in pass 1 (columns), 7-point in pass 2 (rows). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_7x14'></a>jpeg_idct_7x14</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16; INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25, tmp26; INT32 z1, z2, z3, z4; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>14</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. * 14-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/28). */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>7</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> z1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.274162392</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.314692123</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c12 */</font> z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.881747734</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c8 */</font> tmp10 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; tmp11 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp12 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> z4; tmp23 <font color='#5555FF'>=</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3 <font color='#5555FF'>-</font> z4<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font>, <font color='#009900'>/* c0 = (c4+c12-c8)*2 */</font> CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.105676686</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp13 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.273079590</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c6 */</font> tmp14 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.719280954</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6+c10 */</font> tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.613604268</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#009900'>/* c10 */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.378756276</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp20 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp13; tmp26 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp13; tmp21 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp14; tmp25 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp14; tmp22 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp15; tmp24 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>-</font> tmp15; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>]<font face='Lucida Console'>)</font>; tmp13 <font color='#5555FF'>=</font> z4 <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; tmp14 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.334852607</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp14, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.197448846</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp10 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp12 <font color='#5555FF'>+</font> tmp13 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.126980169</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c5-c1 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp14, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.752406978</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9 */</font> tmp16 <font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.061150426</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c9+c11-c13 */</font> z1 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z2; tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.467085129</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> tmp13; <font color='#009900'>/* c11 */</font> tmp16 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp15; z1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z4; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.158341681</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> tmp13; <font color='#009900'>/* -c13 */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z4 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.424103948</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3-c9-c13 */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z4 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.373959773</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c5-c13 */</font> z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.405321284</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1 */</font> tmp14 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z4 <font color='#5555FF'>+</font> tmp13 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.6906431334</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c9-c11 */</font> tmp15 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z4 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.674957567</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c11-c5 */</font> tmp13 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> PASS1_BITS; <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>13</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>12</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>11</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>10</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>9</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>+</font> tmp15, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>8</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>-</font> tmp15, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>+</font> tmp16, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>7</font><font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp26 <font color='#5555FF'>-</font> tmp16, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 14 rows from work array, store into output array. * 7-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/14). */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>14</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp23 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp23 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>6</font>]; tmp20 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>-</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.881747734</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> tmp22 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.314692123</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp21 <font color='#5555FF'>=</font> tmp20 <font color='#5555FF'>+</font> tmp22 <font color='#5555FF'>+</font> tmp23 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.841218003</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c4-c6 */</font> tmp10 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; z2 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> tmp10; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.274162392</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> tmp23; <font color='#009900'>/* c2 */</font> tmp20 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.077722536</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c4-c6 */</font> tmp22 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.470602249</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c4+c6 */</font> tmp23 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.414213562</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c0 */</font> <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.935414347</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c3+c1-c5)/2 */</font> tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.170262339</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c3+c5-c1)/2 */</font> tmp10 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp12; tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp12; tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.378756276</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -c1 */</font> tmp11 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp12; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.613604268</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp10 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2; tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.870828693</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c1-c5 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>6</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>7</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 6x12 output block. * * 12-point IDCT in pass 1 (columns), 6-point in pass 2 (rows). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_6x12'></a>jpeg_idct_6x12</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp10, tmp11, tmp12, tmp13, tmp14, tmp15; INT32 tmp20, tmp21, tmp22, tmp23, tmp24, tmp25; INT32 z1, z2, z3, z4; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>12</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. * 12-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/24). */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>6</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> z3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> tmp10 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> z4; tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> z4; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.366025404</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> z1 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; tmp12 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> z2; tmp21 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> tmp12; tmp24 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> tmp12; tmp12 <font color='#5555FF'>=</font> z4 <font color='#5555FF'>+</font> z2; tmp20 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp12; tmp25 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp12; tmp12 <font color='#5555FF'>=</font> z4 <font color='#5555FF'>-</font> z1 <font color='#5555FF'>-</font> z2; tmp22 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp12; tmp23 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp12; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>]<font face='Lucida Console'>)</font>; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.306562965</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* -c9 */</font> tmp10 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp15 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.860918669</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c7 */</font> tmp12 <font color='#5555FF'>=</font> tmp15 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.261052384</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5-c7 */</font> tmp10 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp11 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.280143716</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1-c5 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>+</font> z4, <font color='#5555FF'>-</font> <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.045510580</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* -(c7+c11) */</font> tmp12 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp13 <font color='#5555FF'>+</font> tmp14 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.478575242</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c5-c7-c11 */</font> tmp13 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp15 <font color='#5555FF'>-</font> tmp11 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.586706681</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c11 */</font> tmp15 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> tmp14 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.676326758</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> <font color='#009900'>/* c7-c11 */</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.982889723</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5+c7 */</font> z1 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z4; z2 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z3; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2, FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* c9 */</font> tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, FIX_0_765366865<font face='Lucida Console'>)</font>; <font color='#009900'>/* c3-c9 */</font> tmp14 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_1_847759065<font face='Lucida Console'>)</font>; <font color='#009900'>/* c3+c9 */</font> <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>11</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>10</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>9</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>8</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>+</font> tmp15, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>6</font><font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp25 <font color='#5555FF'>-</font> tmp15, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 12 rows from work array, store into output array. * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12). */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>12</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp10 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp10 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; tmp12 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; tmp20 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp12, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.707106781</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> tmp11 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp20; tmp21 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp20 <font color='#5555FF'>-</font> tmp20; tmp20 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp20, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp20 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp10; tmp22 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp10; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>5</font>]; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.366025404</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp10 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS<font face='Lucida Console'>)</font>; tmp12 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS<font face='Lucida Console'>)</font>; tmp11 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2 <font color='#5555FF'>-</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>5</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>6</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 5x10 output block. * * 10-point IDCT in pass 1 (columns), 5-point in pass 2 (rows). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_5x10'></a>jpeg_idct_5x10</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp10, tmp11, tmp12, tmp13, tmp14; INT32 tmp20, tmp21, tmp22, tmp23, tmp24; INT32 z1, z2, z3, z4, z5; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>10</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. * 10-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/20). */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>5</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> z3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.144122806</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z4, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.437016024</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c8 */</font> tmp10 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> z1; tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> z2; tmp22 <font color='#5555FF'>=</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font>, <font color='#009900'>/* c0 = (c4-c8)*2 */</font> CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.831253876</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp12 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.513743148</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c6 */</font> tmp13 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.176250899</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c6 */</font> tmp20 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp12; tmp24 <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp12; tmp21 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>+</font> tmp13; tmp23 <font color='#5555FF'>=</font> tmp11 <font color='#5555FF'>-</font> tmp13; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; z4 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>]<font face='Lucida Console'>)</font>; tmp11 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> z4; tmp13 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>-</font> z4; tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp13, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.309016994</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c3-c7)/2 */</font> z5 <font color='#5555FF'>=</font> z3 <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.951056516</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c3+c7)/2 */</font> z4 <font color='#5555FF'>=</font> z5 <font color='#5555FF'>+</font> tmp12; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.396802247</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>+</font> z2 <font color='#5555FF'>+</font> z4; <font color='#009900'>/* c1 */</font> tmp14 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.221231742</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z2 <font color='#5555FF'>+</font> z4; <font color='#009900'>/* c9 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp11, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.587785252</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c1-c9)/2 */</font> z4 <font color='#5555FF'>=</font> z5 <font color='#5555FF'>-</font> tmp12 <font color='#5555FF'>-</font> <font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS <font color='#5555FF'>-</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp12 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> tmp13 <font color='#5555FF'>-</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> PASS1_BITS; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.260073511</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z2 <font color='#5555FF'>-</font> z4; <font color='#009900'>/* c3 */</font> tmp13 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.642039522</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> z2 <font color='#5555FF'>+</font> z4; <font color='#009900'>/* c7 */</font> <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>+</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>9</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp20 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>+</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>8</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp21 <font color='#5555FF'>-</font> tmp11, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>+</font> tmp12<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp22 <font color='#5555FF'>-</font> tmp12<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp23 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>5</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp24 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 10 rows from work array, store into output array. * 5-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/10). */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>10</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp12 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp12 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; tmp13 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; tmp14 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>4</font>]; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>+</font> tmp14, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.790569415</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2+c4)/2 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>-</font> tmp14, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.353553391</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* (c2-c4)/2 */</font> z3 <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> z2; tmp10 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>+</font> z1; tmp11 <font color='#5555FF'>=</font> z3 <font color='#5555FF'>-</font> z1; tmp12 <font color='#5555FF'>-</font><font color='#5555FF'>=</font> z2 <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>2</font>; <font color='#009900'>/* Odd part */</font> z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.831253876</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c3 */</font> tmp13 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.513743148</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1-c3 */</font> tmp14 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>2.176250899</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1+c3 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>4</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp13, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp14, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>5</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 4x8 output block. * * 8-point IDCT in pass 1 (columns), 4-point in pass 2 (rows). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_4x8'></a>jpeg_idct_4x8</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp1, tmp2, tmp3; INT32 tmp10, tmp11, tmp12, tmp13; INT32 z1, z2, z3; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>8</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. */</font> <font color='#009900'>/* Note results are scaled up by sqrt(8) compared to a true IDCT; */</font> <font color='#009900'>/* furthermore, we scale the results by 2**PASS1_BITS. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>4</font>; ctr <font color='#5555FF'>></font> <font color='#979000'>0</font>; ctr<font color='#5555FF'>-</font><font color='#5555FF'>-</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Due to quantization, we will usually find that many of the input * coefficients are zero, especially the AC terms. We can exploit this * by short-circuiting the IDCT calculation for any column in which all * the AC terms are zero. In that case each output is equal to the * DC coefficient (with scale factor as needed). * With typical images and quantization tables, half or more of the * column DCT calculations can be simplified this way. */</font> <font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* AC terms all zero */</font> <font color='#0000FF'><u>int</u></font> dcval <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> PASS1_BITS; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> dcval; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> dcval; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> dcval; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> dcval; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> dcval; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> dcval; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> dcval; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> dcval; inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; <font color='#009900'>/* advance pointers to next column */</font> quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; <font color='#0000FF'>continue</font>; <b>}</b> <font color='#009900'>/* Even part: reverse the even part of the forward DCT. */</font> <font color='#009900'>/* The rotator is sqrt(2)*c(-6). */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>6</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_0_541196100<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_0_765366865<font face='Lucida Console'>)</font>; tmp3 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, FIX_1_847759065<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; z3 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> z2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>+</font> z3; tmp1 <font color='#5555FF'>=</font> z2 <font color='#5555FF'>-</font> z3; tmp10 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp2; tmp13 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp2; tmp11 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp3; tmp12 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>-</font> tmp3; <font color='#009900'>/* Odd part per figure 8; the matrix is unitary and hence its * transpose is its inverse. i0..i3 are y7,y5,y3,y1 respectively. */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>7</font>]<font face='Lucida Console'>)</font>; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp2; z3 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp3; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_1_175875602<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * c3 */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, <font color='#5555FF'>-</font> FIX_1_961570560<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c3-c5) */</font> z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, <font color='#5555FF'>-</font> FIX_0_390180644<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (c5-c3) */</font> z2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; z3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>+</font> tmp3, <font color='#5555FF'>-</font> FIX_0_899976223<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (c7-c3) */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp0, FIX_0_298631336<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c1+c3+c5-c7) */</font> tmp3 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp3, FIX_1_501321110<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3-c5-c7) */</font> tmp0 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; tmp3 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp1 <font color='#5555FF'>+</font> tmp2, <font color='#5555FF'>-</font> FIX_2_562915447<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * (-c1-c3) */</font> tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp1, FIX_2_053119869<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3-c5+c7) */</font> tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp2, FIX_3_072711026<font face='Lucida Console'>)</font>; <font color='#009900'>/* sqrt(2) * ( c1+c3+c5-c7) */</font> tmp1 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z3; tmp2 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> z2; <font color='#009900'>/* Final output stage: inputs are tmp10..tmp13, tmp0..tmp3 */</font> wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp3, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>7</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp3, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>6</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp1, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp1, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>4</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp13 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; <font color='#009900'>/* advance pointers to next column */</font> quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 8 rows from work array, store into output array. * 4-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/16). */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>8</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; tmp10 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>+</font> tmp2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; tmp12 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>-</font> tmp2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; <font color='#009900'>/* Odd part */</font> <font color='#009900'>/* Same rotation as in the even part of the 8x8 LL&M IDCT */</font> z2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; z3 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>3</font>]; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp0 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_0_765366865<font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c6 */</font> tmp2 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, FIX_1_847759065<font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c6 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>3</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>4</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a reduced-size 3x6 output block. * * 6-point IDCT in pass 1 (columns), 3-point in pass 2 (rows). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_3x6'></a>jpeg_idct_3x6</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp1, tmp2, tmp10, tmp11, tmp12; INT32 z1, z2, z3; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; <font color='#0000FF'><u>int</u></font> <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; <font color='#0000FF'><u>int</u></font> workspace[<font color='#979000'>3</font><font color='#5555FF'>*</font><font color='#979000'>6</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. * 6-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/12). */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>3</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>4</font>]<font face='Lucida Console'>)</font>; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.707106781</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c4 */</font> tmp1 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp10; tmp11 <font color='#5555FF'>=</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>-</font> tmp10 <font color='#5555FF'>-</font> tmp10, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp10, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp10 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> tmp0; tmp12 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>-</font> tmp0; <font color='#009900'>/* Odd part */</font> z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>5</font>]<font face='Lucida Console'>)</font>; tmp1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z3, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.366025404</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c5 */</font> tmp0 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z1 <font color='#5555FF'>+</font> z2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> tmp1 <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>z3 <font color='#5555FF'>-</font> z2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS<font face='Lucida Console'>)</font>; tmp1 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z1 <font color='#5555FF'>-</font> z2 <font color='#5555FF'>-</font> z3<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> PASS1_BITS; <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>3</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>3</font><font color='#5555FF'>*</font><font color='#979000'>5</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>3</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>+</font> tmp1<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>3</font><font color='#5555FF'>*</font><font color='#979000'>4</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font face='Lucida Console'>(</font>tmp11 <font color='#5555FF'>-</font> tmp1<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>3</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>+</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; wsptr[<font color='#979000'>3</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp12 <font color='#5555FF'>-</font> tmp2, CONST_BITS<font color='#5555FF'>-</font>PASS1_BITS<font face='Lucida Console'>)</font>; <b>}</b> <font color='#009900'>/* Pass 2: process 6 rows from work array, store into output array. * 3-point IDCT kernel, cK represents sqrt(2) * cos(K*pi/6). */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>6</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp0 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; tmp0 <font color='#5555FF'><</font><font color='#5555FF'><</font><font color='#5555FF'>=</font> CONST_BITS; tmp2 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>2</font>]; tmp12 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp2, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>0.707106781</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c2 */</font> tmp10 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>+</font> tmp12; tmp2 <font color='#5555FF'>=</font> tmp0 <font color='#5555FF'>-</font> tmp12 <font color='#5555FF'>-</font> tmp12; <font color='#009900'>/* Odd part */</font> tmp12 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>INT32<font face='Lucida Console'>)</font> wsptr[<font color='#979000'>1</font>]; tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>tmp12, <font color='#BB00BB'>FIX</font><font face='Lucida Console'>(</font><font color='#979000'>1.224744871</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* c1 */</font> <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>2</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp2, CONST_BITS<font color='#5555FF'>+</font>PASS1_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>3</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 2x4 output block. * * 4-point IDCT in pass 1 (columns), 2-point in pass 2 (rows). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_2x4'></a>jpeg_idct_2x4</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp2, tmp10, tmp12; INT32 z1, z2, z3; JCOEFPTR inptr; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; INT32 <font color='#5555FF'>*</font> wsptr; JSAMPROW outptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; <font color='#0000FF'><u>int</u></font> ctr; INT32 workspace[<font color='#979000'>2</font><font color='#5555FF'>*</font><font color='#979000'>4</font>]; <font color='#009900'>/* buffers data between passes */</font> SHIFT_TEMPS <font color='#009900'>/* Pass 1: process columns from input, store into work array. * 4-point IDCT kernel, * cK represents sqrt(2) * cos(K*pi/16) [refers to 8-point IDCT]. */</font> inptr <font color='#5555FF'>=</font> coef_block; quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>2</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, inptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, quantptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font>, wsptr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> <font color='#009900'>/* Even part */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; tmp2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>2</font>]<font face='Lucida Console'>)</font>; tmp10 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>+</font> tmp2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; tmp12 <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>tmp0 <font color='#5555FF'>-</font> tmp2<font face='Lucida Console'>)</font> <font color='#5555FF'><</font><font color='#5555FF'><</font> CONST_BITS; <font color='#009900'>/* Odd part */</font> <font color='#009900'>/* Same rotation as in the even part of the 8x8 LL&M IDCT */</font> z2 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; z3 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>inptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>3</font>]<font face='Lucida Console'>)</font>; z1 <font color='#5555FF'>=</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2 <font color='#5555FF'>+</font> z3, FIX_0_541196100<font face='Lucida Console'>)</font>; <font color='#009900'>/* c6 */</font> tmp0 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>+</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z2, FIX_0_765366865<font face='Lucida Console'>)</font>; <font color='#009900'>/* c2-c6 */</font> tmp2 <font color='#5555FF'>=</font> z1 <font color='#5555FF'>-</font> <font color='#BB00BB'>MULTIPLY</font><font face='Lucida Console'>(</font>z3, FIX_1_847759065<font face='Lucida Console'>)</font>; <font color='#009900'>/* c2+c6 */</font> <font color='#009900'>/* Final output stage */</font> wsptr[<font color='#979000'>2</font><font color='#5555FF'>*</font><font color='#979000'>0</font>] <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>+</font> tmp0; wsptr[<font color='#979000'>2</font><font color='#5555FF'>*</font><font color='#979000'>3</font>] <font color='#5555FF'>=</font> tmp10 <font color='#5555FF'>-</font> tmp0; wsptr[<font color='#979000'>2</font><font color='#5555FF'>*</font><font color='#979000'>1</font>] <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>+</font> tmp2; wsptr[<font color='#979000'>2</font><font color='#5555FF'>*</font><font color='#979000'>2</font>] <font color='#5555FF'>=</font> tmp12 <font color='#5555FF'>-</font> tmp2; <b>}</b> <font color='#009900'>/* Pass 2: process 4 rows from work array, store into output array. */</font> wsptr <font color='#5555FF'>=</font> workspace; <font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>ctr <font color='#5555FF'>=</font> <font color='#979000'>0</font>; ctr <font color='#5555FF'><</font> <font color='#979000'>4</font>; ctr<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font> <b>{</b> outptr <font color='#5555FF'>=</font> output_buf[ctr] <font color='#5555FF'>+</font> output_col; <font color='#009900'>/* Even part */</font> <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp10 <font color='#5555FF'>=</font> wsptr[<font color='#979000'>0</font>] <font color='#5555FF'>+</font> <font face='Lucida Console'>(</font>ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font face='Lucida Console'>(</font>CONST_BITS<font color='#5555FF'>+</font><font color='#979000'>2</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>; <font color='#009900'>/* Odd part */</font> tmp0 <font color='#5555FF'>=</font> wsptr[<font color='#979000'>1</font>]; <font color='#009900'>/* Final output stage */</font> outptr[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, CONST_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; outptr[<font color='#979000'>1</font>] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, CONST_BITS<font color='#5555FF'>+</font><font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; wsptr <font color='#5555FF'>+</font><font color='#5555FF'>=</font> <font color='#979000'>2</font>; <font color='#009900'>/* advance pointer to next row */</font> <b>}</b> <b>}</b> <font color='#009900'>/* * Perform dequantization and inverse DCT on one block of coefficients, * producing a 1x2 output block. * * 2-point IDCT in pass 1 (columns), 1-point in pass 2 (rows). */</font> <b><a name='GLOBAL'></a>GLOBAL</b><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font> <b><a name='jpeg_idct_1x2'></a>jpeg_idct_1x2</b> <font face='Lucida Console'>(</font>j_decompress_ptr cinfo, jpeg_component_info <font color='#5555FF'>*</font> compptr, JCOEFPTR coef_block, JSAMPARRAY output_buf, JDIMENSION output_col<font face='Lucida Console'>)</font> <b>{</b> INT32 tmp0, tmp10; ISLOW_MULT_TYPE <font color='#5555FF'>*</font> quantptr; JSAMPLE <font color='#5555FF'>*</font>range_limit <font color='#5555FF'>=</font> <font color='#BB00BB'>IDCT_range_limit</font><font face='Lucida Console'>(</font>cinfo<font face='Lucida Console'>)</font>; SHIFT_TEMPS <font color='#009900'>/* Process 1 column from input, store into output array. */</font> quantptr <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>ISLOW_MULT_TYPE <font color='#5555FF'>*</font><font face='Lucida Console'>)</font> compptr<font color='#5555FF'>-</font><font color='#5555FF'>></font>dct_table; <font color='#009900'>/* Even part */</font> tmp10 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>coef_block[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>0</font>]<font face='Lucida Console'>)</font>; <font color='#009900'>/* Add fudge factor here for final descale. */</font> tmp10 <font color='#5555FF'>+</font><font color='#5555FF'>=</font> ONE <font color='#5555FF'><</font><font color='#5555FF'><</font> <font color='#979000'>2</font>; <font color='#009900'>/* Odd part */</font> tmp0 <font color='#5555FF'>=</font> <font color='#BB00BB'>DEQUANTIZE</font><font face='Lucida Console'>(</font>coef_block[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>], quantptr[DCTSIZE<font color='#5555FF'>*</font><font color='#979000'>1</font>]<font face='Lucida Console'>)</font>; <font color='#009900'>/* Final output stage */</font> output_buf[<font color='#979000'>0</font>][output_col] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>+</font> tmp0, <font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; output_buf[<font color='#979000'>1</font>][output_col] <font color='#5555FF'>=</font> range_limit[<font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#BB00BB'>RIGHT_SHIFT</font><font face='Lucida Console'>(</font>tmp10 <font color='#5555FF'>-</font> tmp0, <font color='#979000'>3</font><font face='Lucida Console'>)</font> <font color='#5555FF'>&</font> RANGE_MASK]; <b>}</b> <font color='#0000FF'>#endif</font> <font color='#009900'>/* IDCT_SCALING_SUPPORTED */</font> <font color='#0000FF'>#endif</font> <font color='#009900'>/* DCT_ISLOW_SUPPORTED */</font> </pre></body></html>