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%include "libavutil/x86/x86util.asm" |
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SECTION_RODATA |
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pw_row_coeffs: times 4 dw 13 |
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times 4 dw 17 |
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times 4 dw 7 |
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pd_512: times 2 dd 0x200 |
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pw_col_coeffs: dw 13, 13, 13, -13 |
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dw 17, 7, 7, -17 |
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dw 13, -13, 13, 13 |
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dw -7, 17, -17, -7 |
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SECTION .text |
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%macro IDCT_DC_NOROUND 1 |
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imul %1, 13*13*3 |
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sar %1, 11 |
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%endmacro |
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%macro IDCT_DC_ROUND 1 |
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imul %1, 13*13 |
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add %1, 0x200 |
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sar %1, 10 |
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%endmacro |
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INIT_MMX mmxext |
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cglobal rv34_idct_dc_noround, 1, 2, 0 |
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movsx r1, word [r0] |
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IDCT_DC_NOROUND r1 |
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movd m0, r1d |
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pshufw m0, m0, 0 |
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movq [r0+ 0], m0 |
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movq [r0+ 8], m0 |
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movq [r0+16], m0 |
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movq [r0+24], m0 |
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RET |
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%macro ROW_TRANSFORM 1 |
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pxor mm7, mm7 |
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mova mm0, [%1+ 0*8] |
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mova mm1, [%1+ 1*8] |
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mova mm2, [%1+ 2*8] |
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mova mm3, [%1+ 3*8] |
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mova [%1+ 0*8], mm7 |
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mova [%1+ 1*8], mm7 |
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mova [%1+ 2*8], mm7 |
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mova [%1+ 3*8], mm7 |
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mova mm4, mm0 |
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mova mm6, [pw_row_coeffs+ 0] |
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paddsw mm0, mm2 |
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psubsw mm4, mm2 |
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pmullw mm0, mm6 |
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pmullw mm4, mm6 |
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mova mm5, mm1 |
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pmullw mm1, [pw_row_coeffs+ 8] |
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pmullw mm5, [pw_row_coeffs+16] |
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mova mm7, mm3 |
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pmullw mm3, [pw_row_coeffs+ 8] |
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pmullw mm7, [pw_row_coeffs+16] |
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paddsw mm1, mm7 |
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psubsw mm5, mm3 |
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mova mm7, mm0 |
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mova mm6, mm4 |
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paddsw mm0, mm1 |
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psubsw mm7, mm1 |
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paddsw mm4, mm5 |
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psubsw mm6, mm5 |
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mova mm5, [pd_512] |
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%endmacro |
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%macro COL_TRANSFORM 4 |
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pshufw mm3, %2, 0xDD |
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pshufw %2, %2, 0x88 |
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pmaddwd %2, %3 |
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pmaddwd mm3, %4 |
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paddd %2, mm5 |
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pshufw mm1, %2, 01001110b |
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pshufw mm2, mm3, 01001110b |
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paddd %2, mm3 |
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psubd mm1, mm2 |
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movd mm3, %1 |
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psrad %2, 10 |
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pxor mm2, mm2 |
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psrad mm1, 10 |
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punpcklbw mm3, mm2 |
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packssdw %2, mm1 |
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paddw %2, mm3 |
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packuswb %2, %2 |
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movd %1, %2 |
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%endmacro |
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INIT_MMX mmxext |
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cglobal rv34_idct_add, 3,3,0, d, s, b |
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ROW_TRANSFORM bq |
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COL_TRANSFORM [dq], mm0, [pw_col_coeffs+ 0], [pw_col_coeffs+ 8] |
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mova mm0, [pw_col_coeffs+ 0] |
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COL_TRANSFORM [dq+sq], mm4, mm0, [pw_col_coeffs+ 8] |
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mova mm4, [pw_col_coeffs+ 8] |
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lea dq, [dq + 2*sq] |
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COL_TRANSFORM [dq], mm6, mm0, mm4 |
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COL_TRANSFORM [dq+sq], mm7, mm0, mm4 |
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ret |
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%macro RV34_IDCT_DC_ADD 0 |
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cglobal rv34_idct_dc_add, 3, 3, 6 |
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IDCT_DC_ROUND r2 |
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pxor m1, m1 |
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movd m0, r2d |
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lea r2, [r0+r1*2] |
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movd m2, [r0] |
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movd m3, [r0+r1] |
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pshuflw m0, m0, 0 |
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movd m4, [r2] |
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movd m5, [r2+r1] |
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punpcklqdq m0, m0 |
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punpckldq m2, m3 |
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punpckldq m4, m5 |
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punpcklbw m2, m1 |
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punpcklbw m4, m1 |
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paddw m2, m0 |
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paddw m4, m0 |
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packuswb m2, m4 |
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movd [r0], m2 |
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%if cpuflag(sse4) |
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pextrd [r0+r1], m2, 1 |
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pextrd [r2], m2, 2 |
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pextrd [r2+r1], m2, 3 |
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%else |
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psrldq m2, 4 |
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movd [r0+r1], m2 |
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psrldq m2, 4 |
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movd [r2], m2 |
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psrldq m2, 4 |
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movd [r2+r1], m2 |
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%endif |
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RET |
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%endmacro |
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INIT_XMM sse2 |
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RV34_IDCT_DC_ADD |
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INIT_XMM sse4 |
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RV34_IDCT_DC_ADD |
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