1 ; 2 ; jcgryext.asm - grayscale colorspace conversion (AVX2) 3 ; 4 ; Copyright (C) 2011, 2016, D. R. Commander. 5 ; Copyright (C) 2015, Intel Corporation. 6 ; 7 ; Based on the x86 SIMD extension for IJG JPEG library 8 ; Copyright (C) 1999-2006, MIYASAKA Masaru. 9 ; For conditions of distribution and use, see copyright notice in jsimdext.inc 10 ; 11 ; This file should be assembled with NASM (Netwide Assembler), 12 ; can *not* be assembled with Microsoft's MASM or any compatible 13 ; assembler (including Borland's Turbo Assembler). 14 ; NASM is available from http://nasm.sourceforge.net/ or 15 ; http://sourceforge.net/project/showfiles.php?group_id=6208 16 ; 17 ; [TAB8] 18 19 %include "jcolsamp.inc" 20 21 ; -------------------------------------------------------------------------- 22 ; 23 ; Convert some rows of samples to the output colorspace. 24 ; 25 ; GLOBAL(void) 26 ; jsimd_rgb_gray_convert_avx2(JDIMENSION img_width, JSAMPARRAY input_buf, 27 ; JSAMPIMAGE output_buf, JDIMENSION output_row, 28 ; int num_rows); 29 ; 30 31 %define img_width(b) (b) + 8 ; JDIMENSION img_width 32 %define input_buf(b) (b) + 12 ; JSAMPARRAY input_buf 33 %define output_buf(b) (b) + 16 ; JSAMPIMAGE output_buf 34 %define output_row(b) (b) + 20 ; JDIMENSION output_row 35 %define num_rows(b) (b) + 24 ; int num_rows 36 37 %define original_ebp ebp + 0 38 %define wk(i) ebp - (WK_NUM - (i)) * SIZEOF_YMMWORD 39 ; ymmword wk[WK_NUM] 40 %define WK_NUM 2 41 %define gotptr wk(0) - SIZEOF_POINTER ; void * gotptr 42 43 align 32 44 GLOBAL_FUNCTION(jsimd_rgb_gray_convert_avx2) 45 46 EXTN(jsimd_rgb_gray_convert_avx2): 47 push ebp 48 mov eax, esp ; eax = original ebp 49 sub esp, byte 4 50 and esp, byte (-SIZEOF_YMMWORD) ; align to 256 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)] 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_YMMWORD 93 jae near .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 movzx eax, BYTE [esi+ecx] 106 .column_ld2: 107 test cl, SIZEOF_WORD 108 jz short .column_ld4 109 sub ecx, byte SIZEOF_WORD 110 movzx edx, WORD [esi+ecx] 111 shl eax, WORD_BIT 112 or eax, edx 113 .column_ld4: 114 vmovd xmmA, eax 115 pop edx 116 pop eax 117 test cl, SIZEOF_DWORD 118 jz short .column_ld8 119 sub ecx, byte SIZEOF_DWORD 120 vmovd xmmF, XMM_DWORD [esi+ecx] 121 vpslldq xmmA, xmmA, SIZEOF_DWORD 122 vpor xmmA, xmmA, xmmF 123 .column_ld8: 124 test cl, SIZEOF_MMWORD 125 jz short .column_ld16 126 sub ecx, byte SIZEOF_MMWORD 127 vmovq xmmB, XMM_MMWORD [esi+ecx] 128 vpslldq xmmA, xmmA, SIZEOF_MMWORD 129 vpor xmmA, xmmA, xmmB 130 .column_ld16: 131 test cl, SIZEOF_XMMWORD 132 jz short .column_ld32 133 sub ecx, byte SIZEOF_XMMWORD 134 vmovdqu xmmB, XMM_MMWORD [esi+ecx] 135 vperm2i128 ymmA, ymmA, ymmA, 1 136 vpor ymmA, ymmB 137 .column_ld32: 138 test cl, SIZEOF_YMMWORD 139 jz short .column_ld64 140 sub ecx, byte SIZEOF_YMMWORD 141 vmovdqa ymmF, ymmA 142 vmovdqu ymmA, YMMWORD [esi+0*SIZEOF_YMMWORD] 143 .column_ld64: 144 test cl, 2*SIZEOF_YMMWORD 145 mov ecx, SIZEOF_YMMWORD 146 jz short .rgb_gray_cnv 147 vmovdqa ymmB, ymmA 148 vmovdqu ymmA, YMMWORD [esi+0*SIZEOF_YMMWORD] 149 vmovdqu ymmF, YMMWORD [esi+1*SIZEOF_YMMWORD] 150 jmp short .rgb_gray_cnv 151 alignx 16, 7 152 153 .columnloop: 154 vmovdqu ymmA, YMMWORD [esi+0*SIZEOF_YMMWORD] 155 vmovdqu ymmF, YMMWORD [esi+1*SIZEOF_YMMWORD] 156 vmovdqu ymmB, YMMWORD [esi+2*SIZEOF_YMMWORD] 157 158 .rgb_gray_cnv: 159 ; ymmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05 160 ; 15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A) 161 ; ymmF=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F 162 ; 0G 1G 2G 0H 1H 2H 0I 1I 2I 0J 1J 2J 0K 1K 2K 0L) 163 ; ymmB=(1L 2L 0M 1M 2M 0N 1N 2N 0O 1O 2O 0P 1P 2P 0Q 1Q 164 ; 2Q 0R 1R 2R 0S 1S 2S 0T 1T 2T 0U 1U 2U 0V 1V 2V) 165 166 vmovdqu ymmC, ymmA 167 vinserti128 ymmA, ymmF, xmmA, 0 ; ymmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05 168 ; 0G 1G 2G 0H 1H 2H 0I 1I 2I 0J 1J 2J 0K 1K 2K 0L) 169 vinserti128 ymmC, ymmC, xmmB, 0 ; ymmC=(1L 2L 0M 1M 2M 0N 1N 2N 0O 1O 2O 0P 1P 2P 0Q 1Q 170 ; 15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A) 171 vinserti128 ymmB, ymmB, xmmF, 0 ; ymmB=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F 172 ; 2Q 0R 1R 2R 0S 1S 2S 0T 1T 2T 0U 1U 2U 0V 1V 2V) 173 vperm2i128 ymmF, ymmC, ymmC, 1 ; ymmF=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A 174 ; 1L 2L 0M 1M 2M 0N 1N 2N 0O 1O 2O 0P 1P 2P 0Q 1Q) 175 176 vmovdqa ymmG, ymmA 177 vpslldq ymmA, ymmA, 8 ; ymmA=(-- -- -- -- -- -- -- -- 00 10 20 01 11 21 02 12 178 ; 22 03 13 23 04 14 24 05 0G 1G 2G 0H 1H 2H 0I 1I) 179 vpsrldq ymmG, ymmG, 8 ; ymmG=(22 03 13 23 04 14 24 05 0G 1G 2G 0H 1H 2H 0I 1I 180 ; 2I 0J 1J 2J 0K 1K 2K 0L -- -- -- -- -- -- -- --) 181 182 vpunpckhbw ymmA, ymmA, ymmF ; ymmA=(00 08 10 18 20 28 01 09 11 19 21 29 02 0A 12 1A 183 ; 0G 0O 1G 1O 2G 2O 0H 0P 1H 1P 2H 2P 0I 0Q 1I 1Q) 184 vpslldq ymmF, ymmF, 8 ; ymmF=(-- -- -- -- -- -- -- -- 15 25 06 16 26 07 17 27 185 ; 08 18 28 09 19 29 0A 1A 1L 2L 0M 1M 2M 0N 1N 2N) 186 187 vpunpcklbw ymmG, ymmG, ymmB ; ymmG=(22 2A 03 0B 13 1B 23 2B 04 0C 14 1C 24 2C 05 0D 188 ; 2I 2Q 0J 0R 1J 1R 2J 2R 0K 0S 1K 1S 2K 2S 0L 0T) 189 vpunpckhbw ymmF, ymmF, ymmB ; ymmF=(15 1D 25 2D 06 0E 16 1E 26 2E 07 0F 17 1F 27 2F 190 ; 1L 1T 2L 2T 0M 0U 1M 1U 2M 2U 0N 0V 1N 1V 2N 2V) 191 192 vmovdqa ymmD, ymmA 193 vpslldq ymmA, ymmA, 8 ; ymmA=(-- -- -- -- -- -- -- -- 00 08 10 18 20 28 01 09 194 ; 11 19 21 29 02 0A 12 1A 0G 0O 1G 1O 2G 2O 0H 0P) 195 vpsrldq ymmD, ymmD, 8 ; ymmD=(11 19 21 29 02 0A 12 1A 0G 0O 1G 1O 2G 2O 0H 0P 196 ; 1H 1P 2H 2P 0I 0Q 1I 1Q -- -- -- -- -- -- -- --) 197 198 vpunpckhbw ymmA, ymmA, ymmG ; ymmA=(00 04 08 0C 10 14 18 1C 20 24 28 2C 01 05 09 0D 199 ; 0G 0K 0O 0S 1G 1K 1O 1S 2G 2K 2O 2S 0H 0L 0P 0T) 200 vpslldq ymmG, ymmG, 8 ; ymmG=(-- -- -- -- -- -- -- -- 22 2A 03 0B 13 1B 23 2B 201 ; 04 0C 14 1C 24 2C 05 0D 2I 2Q 0J 0R 1J 1R 2J 2R) 202 203 vpunpcklbw ymmD, ymmD, ymmF ; ymmD=(11 15 19 1D 21 25 29 2D 02 06 0A 0E 12 16 1A 1E 204 ; 1H 1L 1P 1T 2H 2L 2P 2T 0I 0M 0Q 0U 1I 1M 1Q 1U) 205 vpunpckhbw ymmG, ymmG, ymmF ; ymmG=(22 26 2A 2E 03 07 0B 0F 13 17 1B 1F 23 27 2B 2F 206 ; 2I 2M 2Q 2U 0J 0N 0R 0V 1J 1N 1R 1V 2J 2N 2R 2V) 207 208 vmovdqa ymmE, ymmA 209 vpslldq ymmA, ymmA, 8 ; ymmA=(-- -- -- -- -- -- -- -- 00 04 08 0C 10 14 18 1C 210 ; 20 24 28 2C 01 05 09 0D 0G 0K 0O 0S 1G 1K 1O 1S) 211 vpsrldq ymmE, ymmE, 8 ; ymmE=(20 24 28 2C 01 05 09 0D 0G 0K 0O 0S 1G 1K 1O 1S 212 ; 2G 2K 2O 2S 0H 0L 0P 0T -- -- -- -- -- -- -- --) 213 214 vpunpckhbw ymmA, ymmA, ymmD ; ymmA=(00 02 04 06 08 0A 0C 0E 10 12 14 16 18 1A 1C 1E 215 ; 0G 0I 0K 0M 0O 0Q 0S 0U 1G 1I 1K 1M 1O 1Q 1S 1U) 216 vpslldq ymmD, ymmD, 8 ; ymmD=(-- -- -- -- -- -- -- -- 11 15 19 1D 21 25 29 2D 217 ; 02 06 0A 0E 12 16 1A 1E 1H 1L 1P 1T 2H 2L 2P 2T) 218 219 vpunpcklbw ymmE, ymmE, ymmG ; ymmE=(20 22 24 26 28 2A 2C 2E 01 03 05 07 09 0B 0D 0F 220 ; 2G 2I 2K 2M 2O 2Q 2S 2U 0H 0J 0L 0N 0P 0R 0T 0V) 221 vpunpckhbw ymmD, ymmD, ymmG ; ymmD=(11 13 15 17 19 1B 1D 1F 21 23 25 27 29 2B 2D 2F 222 ; 1H 1J 1L 1N 1P 1R 1T 1V 2H 2J 2L 2N 2P 2R 2T 2V) 223 224 vpxor ymmH, ymmH, ymmH 225 226 vmovdqa ymmC, ymmA 227 vpunpcklbw ymmA, ymmA, ymmH ; ymmA=(00 02 04 06 08 0A 0C 0E 0G 0I 0K 0M 0O 0Q 0S 0U) 228 vpunpckhbw ymmC, ymmC, ymmH ; ymmC=(10 12 14 16 18 1A 1C 1E 1G 1I 1K 1M 1O 1Q 1S 1U) 229 230 vmovdqa ymmB, ymmE 231 vpunpcklbw ymmE, ymmE, ymmH ; ymmE=(20 22 24 26 28 2A 2C 2E 2G 2I 2K 2M 2O 2Q 2S 2U) 232 vpunpckhbw ymmB, ymmB, ymmH ; ymmB=(01 03 05 07 09 0B 0D 0F 0H 0J 0L 0N 0P 0R 0T 0V) 233 234 vmovdqa ymmF, ymmD 235 vpunpcklbw ymmD, ymmD, ymmH ; ymmD=(11 13 15 17 19 1B 1D 1F 1H 1J 1L 1N 1P 1R 1T 1V) 236 vpunpckhbw ymmF, ymmF, ymmH ; ymmF=(21 23 25 27 29 2B 2D 2F 2H 2J 2L 2N 2P 2R 2T 2V) 237 238 %else ; RGB_PIXELSIZE == 4 ; ----------- 239 240 .column_ld1: 241 test cl, SIZEOF_XMMWORD/16 242 jz short .column_ld2 243 sub ecx, byte SIZEOF_XMMWORD/16 244 vmovd xmmA, XMM_DWORD [esi+ecx*RGB_PIXELSIZE] 245 .column_ld2: 246 test cl, SIZEOF_XMMWORD/8 247 jz short .column_ld4 248 sub ecx, byte SIZEOF_XMMWORD/8 249 vmovq xmmF, XMM_MMWORD [esi+ecx*RGB_PIXELSIZE] 250 vpslldq xmmA, xmmA, SIZEOF_MMWORD 251 vpor xmmA, xmmA, xmmF 252 .column_ld4: 253 test cl, SIZEOF_XMMWORD/4 254 jz short .column_ld8 255 sub ecx, byte SIZEOF_XMMWORD/4 256 vmovdqa xmmF, xmmA 257 vperm2i128 ymmF, ymmF, ymmF, 1 258 vmovdqu xmmA, XMMWORD [esi+ecx*RGB_PIXELSIZE] 259 vpor ymmA, ymmA, ymmF 260 .column_ld8: 261 test cl, SIZEOF_XMMWORD/2 262 jz short .column_ld16 263 sub ecx, byte SIZEOF_XMMWORD/2 264 vmovdqa ymmF, ymmA 265 vmovdqu ymmA, YMMWORD [esi+ecx*RGB_PIXELSIZE] 266 .column_ld16: 267 test cl, SIZEOF_XMMWORD 268 mov ecx, SIZEOF_YMMWORD 269 jz short .rgb_gray_cnv 270 vmovdqa ymmE, ymmA 271 vmovdqa ymmH, ymmF 272 vmovdqu ymmA, YMMWORD [esi+0*SIZEOF_YMMWORD] 273 vmovdqu ymmF, YMMWORD [esi+1*SIZEOF_YMMWORD] 274 jmp short .rgb_gray_cnv 275 alignx 16, 7 276 277 .columnloop: 278 vmovdqu ymmA, YMMWORD [esi+0*SIZEOF_YMMWORD] 279 vmovdqu ymmF, YMMWORD [esi+1*SIZEOF_YMMWORD] 280 vmovdqu ymmE, YMMWORD [esi+2*SIZEOF_YMMWORD] 281 vmovdqu ymmH, YMMWORD [esi+3*SIZEOF_YMMWORD] 282 283 .rgb_gray_cnv: 284 ; ymmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33 285 ; 04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37) 286 ; ymmF=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B 287 ; 0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F) 288 ; ymmE=(0G 1G 2G 3G 0H 1H 2H 3H 0I 1I 2I 3I 0J 1J 2J 3J 289 ; 0K 1K 2K 3K 0L 1L 2L 3L 0M 1M 2M 3M 0N 1N 2N 3N) 290 ; ymmH=(0O 1O 2O 3O 0P 1P 2P 3P 0Q 1Q 2Q 3Q 0R 1R 2R 3R 291 ; 0S 1S 2S 3S 0T 1T 2T 3T 0U 1U 2U 3U 0V 1V 2V 3V) 292 293 vmovdqa ymmB, ymmA 294 vinserti128 ymmA, ymmA, xmmE, 1 ; ymmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33 295 ; 0G 1G 2G 3G 0H 1H 2H 3H 0I 1I 2I 3I 0J 1J 2J 3J) 296 vperm2i128 ymmE, ymmB, ymmE, 0x31 ; ymmE=(04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37 297 ; 0K 1K 2K 3K 0L 1L 2L 3L 0M 1M 2M 3M 0N 1N 2N 3N) 298 299 vmovdqa ymmB, ymmF 300 vinserti128 ymmF, ymmF, xmmH, 1 ; ymmF=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B 301 ; 0O 1O 2O 3O 0P 1P 2P 3P 0Q 1Q 2Q 3Q 0R 1R 2R 3R) 302 vperm2i128 ymmH, ymmB, ymmH, 0x31 ; ymmH=(0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F 303 ; 0S 1S 2S 3S 0T 1T 2T 3T 0U 1U 2U 3U 0V 1V 2V 3V) 304 305 vmovdqa ymmD, ymmA 306 vpunpcklbw ymmA, ymmA, ymmE ; ymmA=(00 04 10 14 20 24 30 34 01 05 11 15 21 25 31 35 307 ; 0G 0K 1G 1K 2G 2K 3G 3K 0H 0L 1H 1L 2H 2L 3H 3L) 308 vpunpckhbw ymmD, ymmD, ymmE ; ymmD=(02 06 12 16 22 26 32 36 03 07 13 17 23 27 33 37 309 ; 0I 0M 1I 1M 2I 2M 3I 3M 0J 0N 1J 1N 2J 2N 3J 3N) 310 311 vmovdqa ymmC, ymmF 312 vpunpcklbw ymmF, ymmF, ymmH ; ymmF=(08 0C 18 1C 28 2C 38 3C 09 0D 19 1D 29 2D 39 3D 313 ; 0O 0S 1O 1S 2O 2S 3O 3S 0P 0T 1P 1T 2P 2T 3P 3T) 314 vpunpckhbw ymmC, ymmC, ymmH ; ymmC=(0A 0E 1A 1E 2A 2E 3A 3E 0B 0F 1B 1F 2B 2F 3B 3F 315 ; 0Q 0U 1Q 1U 2Q 2U 3Q 3U 0R 0V 1R 1V 2R 2V 3R 3V) 316 317 vmovdqa ymmB, ymmA 318 vpunpcklwd ymmA, ymmA, ymmF ; ymmA=(00 04 08 0C 10 14 18 1C 20 24 28 2C 30 34 38 3C 319 ; 0G 0K 0O 0S 1G 1K 1O 1S 2G 2K 2O 2S 3G 3K 3O 3S) 320 vpunpckhwd ymmB, ymmB, ymmF ; ymmB=(01 05 09 0D 11 15 19 1D 21 25 29 2D 31 35 39 3D 321 ; 0H 0L 0P 0T 1H 1L 1P 1T 2H 2L 2P 2T 3H 3L 3P 3T) 322 323 vmovdqa ymmG, ymmD 324 vpunpcklwd ymmD, ymmD, ymmC ; ymmD=(02 06 0A 0E 12 16 1A 1E 22 26 2A 2E 32 36 3A 3E 325 ; 0I 0M 0Q 0U 1I 1M 1Q 1U 2I 2M 2Q 2U 3I 3M 3Q 3U) 326 vpunpckhwd ymmG, ymmG, ymmC ; ymmG=(03 07 0B 0F 13 17 1B 1F 23 27 2B 2F 33 37 3B 3F 327 ; 0J 0N 0R 0V 1J 1N 1R 1V 2J 2N 2R 2V 3J 3N 3R 3V) 328 329 vmovdqa ymmE, ymmA 330 vpunpcklbw ymmA, ymmA, ymmD ; ymmA=(00 02 04 06 08 0A 0C 0E 10 12 14 16 18 1A 1C 1E 331 ; 0G 0I 0K 0M 0O 0Q 0S 0U 1G 1I 1K 1M 1O 1Q 1S 1U) 332 vpunpckhbw ymmE, ymmE, ymmD ; ymmE=(20 22 24 26 28 2A 2C 2E 30 32 34 36 38 3A 3C 3E 333 ; 2G 2I 2K 2M 2O 2Q 2S 2U 3G 3I 3K 3M 3O 3Q 3S 3U) 334 335 vmovdqa ymmH, ymmB 336 vpunpcklbw ymmB, ymmB, ymmG ; ymmB=(01 03 05 07 09 0B 0D 0F 11 13 15 17 19 1B 1D 1F 337 ; 0H 0J 0L 0N 0P 0R 0T 0V 1H 1J 1L 1N 1P 1R 1T 1V) 338 vpunpckhbw ymmH, ymmH, ymmG ; ymmH=(21 23 25 27 29 2B 2D 2F 31 33 35 37 39 3B 3D 3F 339 ; 2H 2J 2L 2N 2P 2R 2T 2V 3H 3J 3L 3N 3P 3R 3T 3V) 340 341 vpxor ymmF, ymmF, ymmF 342 343 vmovdqa ymmC, ymmA 344 vpunpcklbw ymmA, ymmA, ymmF ; ymmA=(00 02 04 06 08 0A 0C 0E 0G 0I 0K 0M 0O 0Q 0S 0U) 345 vpunpckhbw ymmC, ymmC, ymmF ; ymmC=(10 12 14 16 18 1A 1C 1E 1G 1I 1K 1M 1O 1Q 1S 1U) 346 347 vmovdqa ymmD, ymmB 348 vpunpcklbw ymmB, ymmB, ymmF ; ymmB=(01 03 05 07 09 0B 0D 0F 0H 0J 0L 0N 0P 0R 0T 0V) 349 vpunpckhbw ymmD, ymmD, ymmF ; ymmD=(11 13 15 17 19 1B 1D 1F 1H 1J 1L 1N 1P 1R 1T 1V) 350 351 vmovdqa ymmG, ymmE 352 vpunpcklbw ymmE, ymmE, ymmF ; ymmE=(20 22 24 26 28 2A 2C 2E 2G 2I 2K 2M 2O 2Q 2S 2U) 353 vpunpckhbw ymmG, ymmG, ymmF ; ymmG=(30 32 34 36 38 3A 3C 3E 3G 3I 3K 3M 3O 3Q 3S 3U) 354 355 vpunpcklbw ymmF, ymmF, ymmH 356 vpunpckhbw ymmH, ymmH, ymmH 357 vpsrlw ymmF, ymmF, BYTE_BIT ; ymmF=(21 23 25 27 29 2B 2D 2F 2H 2J 2L 2N 2P 2R 2T 2V) 358 vpsrlw ymmH, ymmH, BYTE_BIT ; ymmH=(31 33 35 37 39 3B 3D 3F 3H 3J 3L 3N 3P 3R 3T 3V) 359 360 %endif ; RGB_PIXELSIZE ; --------------- 361 362 ; ymm0=R(02468ACEGIKMOQSU)=RE, ymm2=G(02468ACEGIKMOQSU)=GE, ymm4=B(02468ACEGIKMOQSU)=BE 363 ; ymm1=R(13579BDFHJLNPRTV)=RO, ymm3=G(13579BDFHJLNPRTV)=GO, ymm5=B(13579BDFHJLNPRTV)=BO 364 365 ; (Original) 366 ; Y = 0.29900 * R + 0.58700 * G + 0.11400 * B 367 ; 368 ; (This implementation) 369 ; Y = 0.29900 * R + 0.33700 * G + 0.11400 * B + 0.25000 * G 370 371 vmovdqa ymm6, ymm1 372 vpunpcklwd ymm1, ymm1, ymm3 373 vpunpckhwd ymm6, ymm6, ymm3 374 vpmaddwd ymm1, ymm1, [GOTOFF(eax,PW_F0299_F0337)] ; ymm1=ROL*FIX(0.299)+GOL*FIX(0.337) 375 vpmaddwd ymm6, ymm6, [GOTOFF(eax,PW_F0299_F0337)] ; ymm6=ROH*FIX(0.299)+GOH*FIX(0.337) 376 377 vmovdqa ymm7, ymm6 ; ymm7=ROH*FIX(0.299)+GOH*FIX(0.337) 378 379 vmovdqa ymm6, ymm0 380 vpunpcklwd ymm0, ymm0, ymm2 381 vpunpckhwd ymm6, ymm6, ymm2 382 vpmaddwd ymm0, ymm0, [GOTOFF(eax,PW_F0299_F0337)] ; ymm0=REL*FIX(0.299)+GEL*FIX(0.337) 383 vpmaddwd ymm6, ymm6, [GOTOFF(eax,PW_F0299_F0337)] ; ymm6=REH*FIX(0.299)+GEH*FIX(0.337) 384 385 vmovdqa YMMWORD [wk(0)], ymm0 ; wk(0)=REL*FIX(0.299)+GEL*FIX(0.337) 386 vmovdqa YMMWORD [wk(1)], ymm6 ; wk(1)=REH*FIX(0.299)+GEH*FIX(0.337) 387 388 vmovdqa ymm0, ymm5 ; ymm0=BO 389 vmovdqa ymm6, ymm4 ; ymm6=BE 390 391 vmovdqa ymm4, ymm0 392 vpunpcklwd ymm0, ymm0, ymm3 393 vpunpckhwd ymm4, ymm4, ymm3 394 vpmaddwd ymm0, ymm0, [GOTOFF(eax,PW_F0114_F0250)] ; ymm0=BOL*FIX(0.114)+GOL*FIX(0.250) 395 vpmaddwd ymm4, ymm4, [GOTOFF(eax,PW_F0114_F0250)] ; ymm4=BOH*FIX(0.114)+GOH*FIX(0.250) 396 397 vmovdqa ymm3, [GOTOFF(eax,PD_ONEHALF)] ; ymm3=[PD_ONEHALF] 398 399 vpaddd ymm0, ymm0, ymm1 400 vpaddd ymm4, ymm4, ymm7 401 vpaddd ymm0, ymm0, ymm3 402 vpaddd ymm4, ymm4, ymm3 403 vpsrld ymm0, ymm0, SCALEBITS ; ymm0=YOL 404 vpsrld ymm4, ymm4, SCALEBITS ; ymm4=YOH 405 vpackssdw ymm0, ymm0, ymm4 ; ymm0=YO 406 407 vmovdqa ymm4, ymm6 408 vpunpcklwd ymm6, ymm6, ymm2 409 vpunpckhwd ymm4, ymm4, ymm2 410 vpmaddwd ymm6, ymm6, [GOTOFF(eax,PW_F0114_F0250)] ; ymm6=BEL*FIX(0.114)+GEL*FIX(0.250) 411 vpmaddwd ymm4, ymm4, [GOTOFF(eax,PW_F0114_F0250)] ; ymm4=BEH*FIX(0.114)+GEH*FIX(0.250) 412 413 vmovdqa ymm2, [GOTOFF(eax,PD_ONEHALF)] ; ymm2=[PD_ONEHALF] 414 415 vpaddd ymm6, ymm6, YMMWORD [wk(0)] 416 vpaddd ymm4, ymm4, YMMWORD [wk(1)] 417 vpaddd ymm6, ymm6, ymm2 418 vpaddd ymm4, ymm4, ymm2 419 vpsrld ymm6, ymm6, SCALEBITS ; ymm6=YEL 420 vpsrld ymm4, ymm4, SCALEBITS ; ymm4=YEH 421 vpackssdw ymm6, ymm6, ymm4 ; ymm6=YE 422 423 vpsllw ymm0, ymm0, BYTE_BIT 424 vpor ymm6, ymm6, ymm0 ; ymm6=Y 425 vmovdqu YMMWORD [edi], ymm6 ; Save Y 426 427 sub ecx, byte SIZEOF_YMMWORD 428 add esi, RGB_PIXELSIZE*SIZEOF_YMMWORD ; inptr 429 add edi, byte SIZEOF_YMMWORD ; outptr0 430 cmp ecx, byte SIZEOF_YMMWORD 431 jae near .columnloop 432 test ecx, ecx 433 jnz near .column_ld1 434 435 pop ecx ; col 436 pop esi 437 pop edi 438 poppic eax 439 440 add esi, byte SIZEOF_JSAMPROW ; input_buf 441 add edi, byte SIZEOF_JSAMPROW 442 dec eax ; num_rows 443 jg near .rowloop 444 445 .return: 446 vzeroupper 447 pop edi 448 pop esi 449 ; pop edx ; need not be preserved 450 ; pop ecx ; need not be preserved 451 pop ebx 452 mov esp, ebp ; esp <- aligned ebp 453 pop esp ; esp <- original ebp 454 pop ebp 455 ret 456 457 ; For some reason, the OS X linker does not honor the request to align the 458 ; segment unless we do this. 459 align 32 460
