The Tor Browser / file comparison
comparison: media/libjpeg/simd/jcgrymmx.asm
media/libjpeg/simd/jcgrymmx.asm
- changeset 0
- 6474c204b198
equal
deleted
inserted
replaced
| -1:000000000000 | 0:d1fe85163a35 |
|---|---|
| 1 ; | |
| 2 ; jcgrymmx.asm - grayscale colorspace conversion (MMX) | |
| 3 ; | |
| 4 ; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB | |
| 5 ; Copyright 2011 D. R. Commander | |
| 6 ; | |
| 7 ; Based on | |
| 8 ; x86 SIMD extension for IJG JPEG library | |
| 9 ; Copyright (C) 1999-2006, MIYASAKA Masaru. | |
| 10 ; For conditions of distribution and use, see copyright notice in jsimdext.inc | |
| 11 ; | |
| 12 ; This file should be assembled with NASM (Netwide Assembler), | |
| 13 ; can *not* be assembled with Microsoft's MASM or any compatible | |
| 14 ; assembler (including Borland's Turbo Assembler). | |
| 15 ; NASM is available from http://nasm.sourceforge.net/ or | |
| 16 ; http://sourceforge.net/project/showfiles.php?group_id=6208 | |
| 17 ; | |
| 18 ; [TAB8] | |
| 19 | |
| 20 %include "jcolsamp.inc" | |
| 21 | |
| 22 ; -------------------------------------------------------------------------- | |
| 23 ; | |
| 24 ; Convert some rows of samples to the output colorspace. | |
| 25 ; | |
| 26 ; GLOBAL(void) | |
| 27 ; jsimd_rgb_gray_convert_mmx (JDIMENSION img_width, | |
| 28 ; JSAMPARRAY input_buf, JSAMPIMAGE output_buf, | |
| 29 ; JDIMENSION output_row, int num_rows); | |
| 30 ; | |
| 31 | |
| 32 %define img_width(b) (b)+8 ; JDIMENSION img_width | |
| 33 %define input_buf(b) (b)+12 ; JSAMPARRAY input_buf | |
| 34 %define output_buf(b) (b)+16 ; JSAMPIMAGE output_buf | |
| 35 %define output_row(b) (b)+20 ; JDIMENSION output_row | |
| 36 %define num_rows(b) (b)+24 ; int num_rows | |
| 37 | |
| 38 %define original_ebp ebp+0 | |
| 39 %define wk(i) ebp-(WK_NUM-(i))*SIZEOF_MMWORD ; mmword wk[WK_NUM] | |
| 40 %define WK_NUM 2 | |
| 41 %define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr | |
| 42 | |
| 43 align 16 | |
| 44 global EXTN(jsimd_rgb_gray_convert_mmx) | |
| 45 | |
| 46 EXTN(jsimd_rgb_gray_convert_mmx): | |
| 47 push ebp | |
| 48 mov eax,esp ; eax = original ebp | |
| 49 sub esp, byte 4 | |
| 50 and esp, byte (-SIZEOF_MMWORD) ; align to 64 bits | |
| 51 mov [esp],eax | |
| 52 mov ebp,esp ; ebp = aligned ebp | |
| 53 lea esp, [wk(0)] | |
| 54 pushpic eax ; make a room for GOT address | |
| 55 push ebx | |
| 56 ; push ecx ; need not be preserved | |
| 57 ; push edx ; need not be preserved | |
| 58 push esi | |
| 59 push edi | |
| 60 | |
| 61 get_GOT ebx ; get GOT address | |
| 62 movpic POINTER [gotptr], ebx ; save GOT address | |
| 63 | |
| 64 mov ecx, JDIMENSION [img_width(eax)] ; num_cols | |
| 65 test ecx,ecx | |
| 66 jz near .return | |
| 67 | |
| 68 push ecx | |
| 69 | |
| 70 mov esi, JSAMPIMAGE [output_buf(eax)] | |
| 71 mov ecx, JDIMENSION [output_row(eax)] | |
| 72 mov edi, JSAMPARRAY [esi+0*SIZEOF_JSAMPARRAY] | |
| 73 lea edi, [edi+ecx*SIZEOF_JSAMPROW] | |
| 74 | |
| 75 pop ecx | |
| 76 | |
| 77 mov esi, JSAMPARRAY [input_buf(eax)] | |
| 78 mov eax, INT [num_rows(eax)] | |
| 79 test eax,eax | |
| 80 jle near .return | |
| 81 alignx 16,7 | |
| 82 .rowloop: | |
| 83 pushpic eax | |
| 84 push edi | |
| 85 push esi | |
| 86 push ecx ; col | |
| 87 | |
| 88 mov esi, JSAMPROW [esi] ; inptr | |
| 89 mov edi, JSAMPROW [edi] ; outptr0 | |
| 90 movpic eax, POINTER [gotptr] ; load GOT address (eax) | |
| 91 | |
| 92 cmp ecx, byte SIZEOF_MMWORD | |
| 93 jae short .columnloop | |
| 94 alignx 16,7 | |
| 95 | |
| 96 %if RGB_PIXELSIZE == 3 ; --------------- | |
| 97 | |
| 98 .column_ld1: | |
| 99 push eax | |
| 100 push edx | |
| 101 lea ecx,[ecx+ecx*2] ; imul ecx,RGB_PIXELSIZE | |
| 102 test cl, SIZEOF_BYTE | |
| 103 jz short .column_ld2 | |
| 104 sub ecx, byte SIZEOF_BYTE | |
| 105 xor eax,eax | |
| 106 mov al, BYTE [esi+ecx] | |
| 107 .column_ld2: | |
| 108 test cl, SIZEOF_WORD | |
| 109 jz short .column_ld4 | |
| 110 sub ecx, byte SIZEOF_WORD | |
| 111 xor edx,edx | |
| 112 mov dx, WORD [esi+ecx] | |
| 113 shl eax, WORD_BIT | |
| 114 or eax,edx | |
| 115 .column_ld4: | |
| 116 movd mmA,eax | |
| 117 pop edx | |
| 118 pop eax | |
| 119 test cl, SIZEOF_DWORD | |
| 120 jz short .column_ld8 | |
| 121 sub ecx, byte SIZEOF_DWORD | |
| 122 movd mmG, DWORD [esi+ecx] | |
| 123 psllq mmA, DWORD_BIT | |
| 124 por mmA,mmG | |
| 125 .column_ld8: | |
| 126 test cl, SIZEOF_MMWORD | |
| 127 jz short .column_ld16 | |
| 128 movq mmG,mmA | |
| 129 movq mmA, MMWORD [esi+0*SIZEOF_MMWORD] | |
| 130 mov ecx, SIZEOF_MMWORD | |
| 131 jmp short .rgb_gray_cnv | |
| 132 .column_ld16: | |
| 133 test cl, 2*SIZEOF_MMWORD | |
| 134 mov ecx, SIZEOF_MMWORD | |
| 135 jz short .rgb_gray_cnv | |
| 136 movq mmF,mmA | |
| 137 movq mmA, MMWORD [esi+0*SIZEOF_MMWORD] | |
| 138 movq mmG, MMWORD [esi+1*SIZEOF_MMWORD] | |
| 139 jmp short .rgb_gray_cnv | |
| 140 alignx 16,7 | |
| 141 | |
| 142 .columnloop: | |
| 143 movq mmA, MMWORD [esi+0*SIZEOF_MMWORD] | |
| 144 movq mmG, MMWORD [esi+1*SIZEOF_MMWORD] | |
| 145 movq mmF, MMWORD [esi+2*SIZEOF_MMWORD] | |
| 146 | |
| 147 .rgb_gray_cnv: | |
| 148 ; mmA=(00 10 20 01 11 21 02 12) | |
| 149 ; mmG=(22 03 13 23 04 14 24 05) | |
| 150 ; mmF=(15 25 06 16 26 07 17 27) | |
| 151 | |
| 152 movq mmD,mmA | |
| 153 psllq mmA,4*BYTE_BIT ; mmA=(-- -- -- -- 00 10 20 01) | |
| 154 psrlq mmD,4*BYTE_BIT ; mmD=(11 21 02 12 -- -- -- --) | |
| 155 | |
| 156 punpckhbw mmA,mmG ; mmA=(00 04 10 14 20 24 01 05) | |
| 157 psllq mmG,4*BYTE_BIT ; mmG=(-- -- -- -- 22 03 13 23) | |
| 158 | |
| 159 punpcklbw mmD,mmF ; mmD=(11 15 21 25 02 06 12 16) | |
| 160 punpckhbw mmG,mmF ; mmG=(22 26 03 07 13 17 23 27) | |
| 161 | |
| 162 movq mmE,mmA | |
| 163 psllq mmA,4*BYTE_BIT ; mmA=(-- -- -- -- 00 04 10 14) | |
| 164 psrlq mmE,4*BYTE_BIT ; mmE=(20 24 01 05 -- -- -- --) | |
| 165 | |
| 166 punpckhbw mmA,mmD ; mmA=(00 02 04 06 10 12 14 16) | |
| 167 psllq mmD,4*BYTE_BIT ; mmD=(-- -- -- -- 11 15 21 25) | |
| 168 | |
| 169 punpcklbw mmE,mmG ; mmE=(20 22 24 26 01 03 05 07) | |
| 170 punpckhbw mmD,mmG ; mmD=(11 13 15 17 21 23 25 27) | |
| 171 | |
| 172 pxor mmH,mmH | |
| 173 | |
| 174 movq mmC,mmA | |
| 175 punpcklbw mmA,mmH ; mmA=(00 02 04 06) | |
| 176 punpckhbw mmC,mmH ; mmC=(10 12 14 16) | |
| 177 | |
| 178 movq mmB,mmE | |
| 179 punpcklbw mmE,mmH ; mmE=(20 22 24 26) | |
| 180 punpckhbw mmB,mmH ; mmB=(01 03 05 07) | |
| 181 | |
| 182 movq mmF,mmD | |
| 183 punpcklbw mmD,mmH ; mmD=(11 13 15 17) | |
| 184 punpckhbw mmF,mmH ; mmF=(21 23 25 27) | |
| 185 | |
| 186 %else ; RGB_PIXELSIZE == 4 ; ----------- | |
| 187 | |
| 188 .column_ld1: | |
| 189 test cl, SIZEOF_MMWORD/8 | |
| 190 jz short .column_ld2 | |
| 191 sub ecx, byte SIZEOF_MMWORD/8 | |
| 192 movd mmA, DWORD [esi+ecx*RGB_PIXELSIZE] | |
| 193 .column_ld2: | |
| 194 test cl, SIZEOF_MMWORD/4 | |
| 195 jz short .column_ld4 | |
| 196 sub ecx, byte SIZEOF_MMWORD/4 | |
| 197 movq mmF,mmA | |
| 198 movq mmA, MMWORD [esi+ecx*RGB_PIXELSIZE] | |
| 199 .column_ld4: | |
| 200 test cl, SIZEOF_MMWORD/2 | |
| 201 mov ecx, SIZEOF_MMWORD | |
| 202 jz short .rgb_gray_cnv | |
| 203 movq mmD,mmA | |
| 204 movq mmC,mmF | |
| 205 movq mmA, MMWORD [esi+0*SIZEOF_MMWORD] | |
| 206 movq mmF, MMWORD [esi+1*SIZEOF_MMWORD] | |
| 207 jmp short .rgb_gray_cnv | |
| 208 alignx 16,7 | |
| 209 | |
| 210 .columnloop: | |
| 211 movq mmA, MMWORD [esi+0*SIZEOF_MMWORD] | |
| 212 movq mmF, MMWORD [esi+1*SIZEOF_MMWORD] | |
| 213 movq mmD, MMWORD [esi+2*SIZEOF_MMWORD] | |
| 214 movq mmC, MMWORD [esi+3*SIZEOF_MMWORD] | |
| 215 | |
| 216 .rgb_gray_cnv: | |
| 217 ; mmA=(00 10 20 30 01 11 21 31) | |
| 218 ; mmF=(02 12 22 32 03 13 23 33) | |
| 219 ; mmD=(04 14 24 34 05 15 25 35) | |
| 220 ; mmC=(06 16 26 36 07 17 27 37) | |
| 221 | |
| 222 movq mmB,mmA | |
| 223 punpcklbw mmA,mmF ; mmA=(00 02 10 12 20 22 30 32) | |
| 224 punpckhbw mmB,mmF ; mmB=(01 03 11 13 21 23 31 33) | |
| 225 | |
| 226 movq mmG,mmD | |
| 227 punpcklbw mmD,mmC ; mmD=(04 06 14 16 24 26 34 36) | |
| 228 punpckhbw mmG,mmC ; mmG=(05 07 15 17 25 27 35 37) | |
| 229 | |
| 230 movq mmE,mmA | |
| 231 punpcklwd mmA,mmD ; mmA=(00 02 04 06 10 12 14 16) | |
| 232 punpckhwd mmE,mmD ; mmE=(20 22 24 26 30 32 34 36) | |
| 233 | |
| 234 movq mmH,mmB | |
| 235 punpcklwd mmB,mmG ; mmB=(01 03 05 07 11 13 15 17) | |
| 236 punpckhwd mmH,mmG ; mmH=(21 23 25 27 31 33 35 37) | |
| 237 | |
| 238 pxor mmF,mmF | |
| 239 | |
| 240 movq mmC,mmA | |
| 241 punpcklbw mmA,mmF ; mmA=(00 02 04 06) | |
| 242 punpckhbw mmC,mmF ; mmC=(10 12 14 16) | |
| 243 | |
| 244 movq mmD,mmB | |
| 245 punpcklbw mmB,mmF ; mmB=(01 03 05 07) | |
| 246 punpckhbw mmD,mmF ; mmD=(11 13 15 17) | |
| 247 | |
| 248 movq mmG,mmE | |
| 249 punpcklbw mmE,mmF ; mmE=(20 22 24 26) | |
| 250 punpckhbw mmG,mmF ; mmG=(30 32 34 36) | |
| 251 | |
| 252 punpcklbw mmF,mmH | |
| 253 punpckhbw mmH,mmH | |
| 254 psrlw mmF,BYTE_BIT ; mmF=(21 23 25 27) | |
| 255 psrlw mmH,BYTE_BIT ; mmH=(31 33 35 37) | |
| 256 | |
| 257 %endif ; RGB_PIXELSIZE ; --------------- | |
| 258 | |
| 259 ; mm0=(R0 R2 R4 R6)=RE, mm2=(G0 G2 G4 G6)=GE, mm4=(B0 B2 B4 B6)=BE | |
| 260 ; mm1=(R1 R3 R5 R7)=RO, mm3=(G1 G3 G5 G7)=GO, mm5=(B1 B3 B5 B7)=BO | |
| 261 | |
| 262 ; (Original) | |
| 263 ; Y = 0.29900 * R + 0.58700 * G + 0.11400 * B | |
| 264 ; | |
| 265 ; (This implementation) | |
| 266 ; Y = 0.29900 * R + 0.33700 * G + 0.11400 * B + 0.25000 * G | |
| 267 | |
| 268 movq mm6,mm1 | |
| 269 punpcklwd mm1,mm3 | |
| 270 punpckhwd mm6,mm3 | |
| 271 pmaddwd mm1,[GOTOFF(eax,PW_F0299_F0337)] ; mm1=ROL*FIX(0.299)+GOL*FIX(0.337) | |
| 272 pmaddwd mm6,[GOTOFF(eax,PW_F0299_F0337)] ; mm6=ROH*FIX(0.299)+GOH*FIX(0.337) | |
| 273 | |
| 274 movq mm7, mm6 ; mm7=ROH*FIX(0.299)+GOH*FIX(0.337) | |
| 275 | |
| 276 movq mm6,mm0 | |
| 277 punpcklwd mm0,mm2 | |
| 278 punpckhwd mm6,mm2 | |
| 279 pmaddwd mm0,[GOTOFF(eax,PW_F0299_F0337)] ; mm0=REL*FIX(0.299)+GEL*FIX(0.337) | |
| 280 pmaddwd mm6,[GOTOFF(eax,PW_F0299_F0337)] ; mm6=REH*FIX(0.299)+GEH*FIX(0.337) | |
| 281 | |
| 282 movq MMWORD [wk(0)], mm0 ; wk(0)=REL*FIX(0.299)+GEL*FIX(0.337) | |
| 283 movq MMWORD [wk(1)], mm6 ; wk(1)=REH*FIX(0.299)+GEH*FIX(0.337) | |
| 284 | |
| 285 movq mm0, mm5 ; mm0=BO | |
| 286 movq mm6, mm4 ; mm6=BE | |
| 287 | |
| 288 movq mm4,mm0 | |
| 289 punpcklwd mm0,mm3 | |
| 290 punpckhwd mm4,mm3 | |
| 291 pmaddwd mm0,[GOTOFF(eax,PW_F0114_F0250)] ; mm0=BOL*FIX(0.114)+GOL*FIX(0.250) | |
| 292 pmaddwd mm4,[GOTOFF(eax,PW_F0114_F0250)] ; mm4=BOH*FIX(0.114)+GOH*FIX(0.250) | |
| 293 | |
| 294 movq mm3,[GOTOFF(eax,PD_ONEHALF)] ; mm3=[PD_ONEHALF] | |
| 295 | |
| 296 paddd mm0, mm1 | |
| 297 paddd mm4, mm7 | |
| 298 paddd mm0,mm3 | |
| 299 paddd mm4,mm3 | |
| 300 psrld mm0,SCALEBITS ; mm0=YOL | |
| 301 psrld mm4,SCALEBITS ; mm4=YOH | |
| 302 packssdw mm0,mm4 ; mm0=YO | |
| 303 | |
| 304 movq mm4,mm6 | |
| 305 punpcklwd mm6,mm2 | |
| 306 punpckhwd mm4,mm2 | |
| 307 pmaddwd mm6,[GOTOFF(eax,PW_F0114_F0250)] ; mm6=BEL*FIX(0.114)+GEL*FIX(0.250) | |
| 308 pmaddwd mm4,[GOTOFF(eax,PW_F0114_F0250)] ; mm4=BEH*FIX(0.114)+GEH*FIX(0.250) | |
| 309 | |
| 310 movq mm2,[GOTOFF(eax,PD_ONEHALF)] ; mm2=[PD_ONEHALF] | |
| 311 | |
| 312 paddd mm6, MMWORD [wk(0)] | |
| 313 paddd mm4, MMWORD [wk(1)] | |
| 314 paddd mm6,mm2 | |
| 315 paddd mm4,mm2 | |
| 316 psrld mm6,SCALEBITS ; mm6=YEL | |
| 317 psrld mm4,SCALEBITS ; mm4=YEH | |
| 318 packssdw mm6,mm4 ; mm6=YE | |
| 319 | |
| 320 psllw mm0,BYTE_BIT | |
| 321 por mm6,mm0 ; mm6=Y | |
| 322 movq MMWORD [edi], mm6 ; Save Y | |
| 323 | |
| 324 sub ecx, byte SIZEOF_MMWORD | |
| 325 add esi, byte RGB_PIXELSIZE*SIZEOF_MMWORD ; inptr | |
| 326 add edi, byte SIZEOF_MMWORD ; outptr0 | |
| 327 cmp ecx, byte SIZEOF_MMWORD | |
| 328 jae near .columnloop | |
| 329 test ecx,ecx | |
| 330 jnz near .column_ld1 | |
| 331 | |
| 332 pop ecx ; col | |
| 333 pop esi | |
| 334 pop edi | |
| 335 poppic eax | |
| 336 | |
| 337 add esi, byte SIZEOF_JSAMPROW ; input_buf | |
| 338 add edi, byte SIZEOF_JSAMPROW | |
| 339 dec eax ; num_rows | |
| 340 jg near .rowloop | |
| 341 | |
| 342 emms ; empty MMX state | |
| 343 | |
| 344 .return: | |
| 345 pop edi | |
| 346 pop esi | |
| 347 ; pop edx ; need not be preserved | |
| 348 ; pop ecx ; need not be preserved | |
| 349 pop ebx | |
| 350 mov esp,ebp ; esp <- aligned ebp | |
| 351 pop esp ; esp <- original ebp | |
| 352 pop ebp | |
| 353 ret | |
| 354 | |
| 355 ; For some reason, the OS X linker does not honor the request to align the | |
| 356 ; segment unless we do this. | |
| 357 align 16 |
