File size: 13,640 Bytes
8ead80b |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 |
;******************************************************************************
;* Core video DSP functions
;* Copyright (c) 2012 Ronald S. Bultje <[email protected]>
;*
;* This file is part of FFmpeg.
;*
;* FFmpeg is free software; you can redistribute it and/or
;* modify it under the terms of the GNU Lesser General Public
;* License as published by the Free Software Foundation; either
;* version 2.1 of the License, or (at your option) any later version.
;*
;* FFmpeg is distributed in the hope that it will be useful,
;* but WITHOUT ANY WARRANTY; without even the implied warranty of
;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;* Lesser General Public License for more details.
;*
;* You should have received a copy of the GNU Lesser General Public
;* License along with FFmpeg; if not, write to the Free Software
;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
;******************************************************************************
%include "libavutil/x86/x86util.asm"
SECTION .text
; slow vertical extension loop function. Works with variable-width, and
; does per-line reading/writing of source data
%macro V_COPY_ROW 2 ; type (top/body/bottom), h
.%1_y_loop: ; do {
mov wq, r7mp ; initialize w (r7mp = wmp)
.%1_x_loop: ; do {
movu m0, [srcq+wq] ; m0 = read($mmsize)
movu [dstq+wq], m0 ; write(m0, $mmsize)
add wq, mmsize ; w -= $mmsize
cmp wq, -mmsize ; } while (w > $mmsize);
jl .%1_x_loop
movu m0, [srcq-mmsize] ; m0 = read($mmsize)
movu [dstq-mmsize], m0 ; write(m0, $mmsize)
%ifidn %1, body ; if ($type == body) {
add srcq, src_strideq ; src += src_stride
%endif ; }
add dstq, dst_strideq ; dst += dst_stride
dec %2 ; } while (--$h);
jnz .%1_y_loop
%endmacro
; .----. <- zero
; | | <- top is copied from first line in body of source
; |----| <- start_y
; | | <- body is copied verbatim (line-by-line) from source
; |----| <- end_y
; | | <- bottom is copied from last line in body of source
; '----' <- bh
INIT_XMM sse
%if ARCH_X86_64
cglobal emu_edge_vvar, 7, 8, 1, dst, dst_stride, src, src_stride, \
start_y, end_y, bh, w
%else ; x86-32
cglobal emu_edge_vvar, 1, 6, 1, dst, src, start_y, end_y, bh, w
%define src_strideq r3mp
%define dst_strideq r1mp
mov srcq, r2mp
mov start_yq, r4mp
mov end_yq, r5mp
mov bhq, r6mp
%endif
sub bhq, end_yq ; bh -= end_q
sub end_yq, start_yq ; end_q -= start_q
add srcq, r7mp ; (r7mp = wmp)
add dstq, r7mp ; (r7mp = wmp)
neg r7mp ; (r7mp = wmp)
test start_yq, start_yq ; if (start_q) {
jz .body
V_COPY_ROW top, start_yq ; v_copy_row(top, start_yq)
.body: ; }
V_COPY_ROW body, end_yq ; v_copy_row(body, end_yq)
test bhq, bhq ; if (bh) {
jz .end
sub srcq, src_strideq ; src -= src_stride
V_COPY_ROW bottom, bhq ; v_copy_row(bottom, bh)
.end: ; }
RET
%macro hvar_fn 0
cglobal emu_edge_hvar, 5, 6, 1, dst, dst_stride, start_x, n_words, h, w
lea dstq, [dstq+n_wordsq*2]
neg n_wordsq
lea start_xq, [start_xq+n_wordsq*2]
.y_loop: ; do {
%if cpuflag(avx2)
vpbroadcastb m0, [dstq+start_xq]
mov wq, n_wordsq ; initialize w
%else
movzx wd, byte [dstq+start_xq] ; w = read(1)
imul wd, 0x01010101 ; w *= 0x01010101
movd m0, wd
mov wq, n_wordsq ; initialize w
pshufd m0, m0, q0000 ; splat
%endif ; avx2
.x_loop: ; do {
movu [dstq+wq*2], m0 ; write($reg, $mmsize)
add wq, mmsize/2 ; w -= $mmsize/2
cmp wq, -(mmsize/2) ; } while (w > $mmsize/2)
jl .x_loop
movu [dstq-mmsize], m0 ; write($reg, $mmsize)
add dstq, dst_strideq ; dst += dst_stride
dec hq ; } while (h--)
jnz .y_loop
RET
%endmacro
INIT_XMM sse2
hvar_fn
%if HAVE_AVX2_EXTERNAL
INIT_XMM avx2
hvar_fn
%endif
; macro to read/write a horizontal number of pixels (%2) to/from registers
; on sse, - fills xmm0-15 for consecutive sets of 16 pixels
; - if (%2 & 8) fills 8 bytes into xmm$next
; - if (%2 & 4) fills 4 bytes into xmm$next
; - if (%2 & 3) fills 1, 2 or 4 bytes in eax
; on mmx, - fills mm0-7 for consecutive sets of 8 pixels
; - if (%2 & 4) fills 4 bytes into mm$next
; - if (%2 & 3) fills 1, 2 or 4 bytes in eax
; writing data out is in the same way
%macro READ_NUM_BYTES 2
%assign %%off 0 ; offset in source buffer
%assign %%mmx_idx 0 ; mmx register index
%assign %%xmm_idx 0 ; xmm register index
%rep %2/mmsize
%if mmsize == 16
movu xmm %+ %%xmm_idx, [srcq+%%off]
%assign %%xmm_idx %%xmm_idx+1
%else ; mmx
movu mm %+ %%mmx_idx, [srcq+%%off]
%assign %%mmx_idx %%mmx_idx+1
%endif
%assign %%off %%off+mmsize
%endrep ; %2/mmsize
%if mmsize == 16
%if (%2-%%off) >= 8
%if %2 > 16 && (%2-%%off) > 8
movu xmm %+ %%xmm_idx, [srcq+%2-16]
%assign %%xmm_idx %%xmm_idx+1
%assign %%off %2
%else
movq mm %+ %%mmx_idx, [srcq+%%off]
%assign %%mmx_idx %%mmx_idx+1
%assign %%off %%off+8
%endif
%endif ; (%2-%%off) >= 8
%endif
%if (%2-%%off) >= 4
%if %2 > 8 && (%2-%%off) > 4
movq mm %+ %%mmx_idx, [srcq+%2-8]
%assign %%off %2
%else
movd mm %+ %%mmx_idx, [srcq+%%off]
%assign %%off %%off+4
%endif
%assign %%mmx_idx %%mmx_idx+1
%endif ; (%2-%%off) >= 4
%if (%2-%%off) >= 1
%if %2 >= 4
movd mm %+ %%mmx_idx, [srcq+%2-4]
%elif (%2-%%off) == 1
mov valb, [srcq+%2-1]
%elif (%2-%%off) == 2
mov valw, [srcq+%2-2]
%else
mov valb, [srcq+%2-1]
ror vald, 16
mov valw, [srcq+%2-3]
%endif
%endif ; (%2-%%off) >= 1
%endmacro ; READ_NUM_BYTES
%macro WRITE_NUM_BYTES 2
%assign %%off 0 ; offset in destination buffer
%assign %%mmx_idx 0 ; mmx register index
%assign %%xmm_idx 0 ; xmm register index
%rep %2/mmsize
%if mmsize == 16
movu [dstq+%%off], xmm %+ %%xmm_idx
%assign %%xmm_idx %%xmm_idx+1
%else ; mmx
movu [dstq+%%off], mm %+ %%mmx_idx
%assign %%mmx_idx %%mmx_idx+1
%endif
%assign %%off %%off+mmsize
%endrep ; %2/mmsize
%if mmsize == 16
%if (%2-%%off) >= 8
%if %2 > 16 && (%2-%%off) > 8
movu [dstq+%2-16], xmm %+ %%xmm_idx
%assign %%xmm_idx %%xmm_idx+1
%assign %%off %2
%else
movq [dstq+%%off], mm %+ %%mmx_idx
%assign %%mmx_idx %%mmx_idx+1
%assign %%off %%off+8
%endif
%endif ; (%2-%%off) >= 8
%endif
%if (%2-%%off) >= 4
%if %2 > 8 && (%2-%%off) > 4
movq [dstq+%2-8], mm %+ %%mmx_idx
%assign %%off %2
%else
movd [dstq+%%off], mm %+ %%mmx_idx
%assign %%off %%off+4
%endif
%assign %%mmx_idx %%mmx_idx+1
%endif ; (%2-%%off) >= 4
%if (%2-%%off) >= 1
%if %2 >= 4
movd [dstq+%2-4], mm %+ %%mmx_idx
%elif (%2-%%off) == 1
mov [dstq+%2-1], valb
%elif (%2-%%off) == 2
mov [dstq+%2-2], valw
%else
mov [dstq+%2-3], valw
ror vald, 16
mov [dstq+%2-1], valb
%ifnidn %1, body
ror vald, 16
%endif
%endif
%endif ; (%2-%%off) >= 1
%endmacro ; WRITE_NUM_BYTES
; vertical top/bottom extend and body copy fast loops
; these are function pointers to set-width line copy functions, i.e.
; they read a fixed number of pixels into set registers, and write
; those out into the destination buffer
%macro VERTICAL_EXTEND 2
%assign %%n %1
%rep 1+%2-%1
%if %%n <= 3
%if ARCH_X86_64
cglobal emu_edge_vfix %+ %%n, 6, 8, 0, dst, dst_stride, src, src_stride, \
start_y, end_y, val, bh
mov bhq, r6mp ; r6mp = bhmp
%else ; x86-32
cglobal emu_edge_vfix %+ %%n, 0, 6, 0, val, dst, src, start_y, end_y, bh
mov dstq, r0mp
mov srcq, r2mp
mov start_yq, r4mp
mov end_yq, r5mp
mov bhq, r6mp
%define dst_strideq r1mp
%define src_strideq r3mp
%endif ; x86-64/32
%else
%if ARCH_X86_64
cglobal emu_edge_vfix %+ %%n, 7, 7, 1, dst, dst_stride, src, src_stride, \
start_y, end_y, bh
%else ; x86-32
cglobal emu_edge_vfix %+ %%n, 1, 5, 1, dst, src, start_y, end_y, bh
mov srcq, r2mp
mov start_yq, r4mp
mov end_yq, r5mp
mov bhq, r6mp
%define dst_strideq r1mp
%define src_strideq r3mp
%endif ; x86-64/32
%endif
; FIXME move this to c wrapper?
sub bhq, end_yq ; bh -= end_y
sub end_yq, start_yq ; end_y -= start_y
; extend pixels above body
test start_yq, start_yq ; if (start_y) {
jz .body_loop
READ_NUM_BYTES top, %%n ; $variable_regs = read($n)
.top_loop: ; do {
WRITE_NUM_BYTES top, %%n ; write($variable_regs, $n)
add dstq, dst_strideq ; dst += linesize
dec start_yq ; } while (--start_y)
jnz .top_loop ; }
; copy body pixels
.body_loop: ; do {
READ_NUM_BYTES body, %%n ; $variable_regs = read($n)
WRITE_NUM_BYTES body, %%n ; write($variable_regs, $n)
add dstq, dst_strideq ; dst += dst_stride
add srcq, src_strideq ; src += src_stride
dec end_yq ; } while (--end_y)
jnz .body_loop
; copy bottom pixels
test bhq, bhq ; if (block_h) {
jz .end
sub srcq, src_strideq ; src -= linesize
READ_NUM_BYTES bottom, %%n ; $variable_regs = read($n)
.bottom_loop: ; do {
WRITE_NUM_BYTES bottom, %%n ; write($variable_regs, $n)
add dstq, dst_strideq ; dst += linesize
dec bhq ; } while (--bh)
jnz .bottom_loop ; }
.end:
RET
%assign %%n %%n+1
%endrep ; 1+%2-%1
%endmacro ; VERTICAL_EXTEND
INIT_MMX mmx
VERTICAL_EXTEND 1, 15
INIT_XMM sse
VERTICAL_EXTEND 16, 22
; left/right (horizontal) fast extend functions
; these are essentially identical to the vertical extend ones above,
; just left/right separated because number of pixels to extend is
; obviously not the same on both sides.
%macro READ_V_PIXEL 2
%if cpuflag(avx2)
vpbroadcastb m0, %2
%else
movzx vald, byte %2
imul vald, 0x01010101
%if %1 >= 8
movd m0, vald
%if mmsize == 16
pshufd m0, m0, q0000
%else
punpckldq m0, m0
%endif ; mmsize == 16
%endif ; %1 > 16
%endif ; avx2
%endmacro ; READ_V_PIXEL
%macro WRITE_V_PIXEL 2
%assign %%off 0
%if %1 >= 8
%rep %1/mmsize
movu [%2+%%off], m0
%assign %%off %%off+mmsize
%endrep ; %1/mmsize
%if mmsize == 16
%if %1-%%off >= 8
%if %1 > 16 && %1-%%off > 8
movu [%2+%1-16], m0
%assign %%off %1
%else
movq [%2+%%off], m0
%assign %%off %%off+8
%endif
%endif ; %1-%%off >= 8
%endif ; mmsize == 16
%if %1-%%off >= 4
%if %1 > 8 && %1-%%off > 4
movq [%2+%1-8], m0
%assign %%off %1
%else
movd [%2+%%off], m0
%assign %%off %%off+4
%endif
%endif ; %1-%%off >= 4
%else ; %1 < 8
%rep %1/4
mov [%2+%%off], vald
%assign %%off %%off+4
%endrep ; %1/4
%endif ; %1 >=/< 8
%if %1-%%off == 2
%if cpuflag(avx2)
movd [%2+%%off-2], m0
%else
mov [%2+%%off], valw
%endif ; avx2
%endif ; (%1-%%off)/2
%endmacro ; WRITE_V_PIXEL
%macro H_EXTEND 2
%assign %%n %1
%rep 1+(%2-%1)/2
%if cpuflag(avx2)
cglobal emu_edge_hfix %+ %%n, 4, 4, 1, dst, dst_stride, start_x, bh
%else
cglobal emu_edge_hfix %+ %%n, 4, 5, 1, dst, dst_stride, start_x, bh, val
%endif
.loop_y: ; do {
READ_V_PIXEL %%n, [dstq+start_xq] ; $variable_regs = read($n)
WRITE_V_PIXEL %%n, dstq ; write($variable_regs, $n)
add dstq, dst_strideq ; dst += dst_stride
dec bhq ; } while (--bh)
jnz .loop_y
RET
%assign %%n %%n+2
%endrep ; 1+(%2-%1)/2
%endmacro ; H_EXTEND
INIT_MMX mmx
H_EXTEND 2, 14
INIT_XMM sse2
H_EXTEND 16, 22
%if HAVE_AVX2_EXTERNAL
INIT_XMM avx2
H_EXTEND 8, 22
%endif
INIT_MMX mmxext
cglobal prefetch, 3, 3, 0, buf, stride, h
.loop:
prefetcht0 [bufq]
add bufq, strideq
dec hd
jg .loop
RET
|