1 ; 2 ; jdmrgext.asm - merged upsampling/color conversion (64-bit SSE2) 3 ; 4 ; Copyright 2009, 2012 Pierre Ossman <ossman (a] cendio.se> for Cendio AB 5 ; Copyright 2009, 2012 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 ; Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical. 25 ; 26 ; GLOBAL(void) 27 ; jsimd_h2v1_merged_upsample_sse2 (JDIMENSION output_width, 28 ; JSAMPIMAGE input_buf, 29 ; JDIMENSION in_row_group_ctr, 30 ; JSAMPARRAY output_buf); 31 ; 32 33 ; r10 = JDIMENSION output_width 34 ; r11 = JSAMPIMAGE input_buf 35 ; r12 = JDIMENSION in_row_group_ctr 36 ; r13 = JSAMPARRAY output_buf 37 38 %define wk(i) rbp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM] 39 %define WK_NUM 3 40 41 align 16 42 global EXTN(jsimd_h2v1_merged_upsample_sse2) 43 44 EXTN(jsimd_h2v1_merged_upsample_sse2): 45 push rbp 46 mov rax,rsp ; rax = original rbp 47 sub rsp, byte 4 48 and rsp, byte (-SIZEOF_XMMWORD) ; align to 128 bits 49 mov [rsp],rax 50 mov rbp,rsp ; rbp = aligned rbp 51 lea rsp, [wk(0)] 52 collect_args 53 push rbx 54 55 mov ecx, r10d ; col 56 test rcx,rcx 57 jz near .return 58 59 push rcx 60 61 mov rdi, r11 62 mov ecx, r12d 63 mov rsi, JSAMPARRAY [rdi+0*SIZEOF_JSAMPARRAY] 64 mov rbx, JSAMPARRAY [rdi+1*SIZEOF_JSAMPARRAY] 65 mov rdx, JSAMPARRAY [rdi+2*SIZEOF_JSAMPARRAY] 66 mov rdi, r13 67 mov rsi, JSAMPROW [rsi+rcx*SIZEOF_JSAMPROW] ; inptr0 68 mov rbx, JSAMPROW [rbx+rcx*SIZEOF_JSAMPROW] ; inptr1 69 mov rdx, JSAMPROW [rdx+rcx*SIZEOF_JSAMPROW] ; inptr2 70 mov rdi, JSAMPROW [rdi] ; outptr 71 72 pop rcx ; col 73 74 .columnloop: 75 76 movdqa xmm6, XMMWORD [rbx] ; xmm6=Cb(0123456789ABCDEF) 77 movdqa xmm7, XMMWORD [rdx] ; xmm7=Cr(0123456789ABCDEF) 78 79 pxor xmm1,xmm1 ; xmm1=(all 0's) 80 pcmpeqw xmm3,xmm3 81 psllw xmm3,7 ; xmm3={0xFF80 0xFF80 0xFF80 0xFF80 ..} 82 83 movdqa xmm4,xmm6 84 punpckhbw xmm6,xmm1 ; xmm6=Cb(89ABCDEF)=CbH 85 punpcklbw xmm4,xmm1 ; xmm4=Cb(01234567)=CbL 86 movdqa xmm0,xmm7 87 punpckhbw xmm7,xmm1 ; xmm7=Cr(89ABCDEF)=CrH 88 punpcklbw xmm0,xmm1 ; xmm0=Cr(01234567)=CrL 89 90 paddw xmm6,xmm3 91 paddw xmm4,xmm3 92 paddw xmm7,xmm3 93 paddw xmm0,xmm3 94 95 ; (Original) 96 ; R = Y + 1.40200 * Cr 97 ; G = Y - 0.34414 * Cb - 0.71414 * Cr 98 ; B = Y + 1.77200 * Cb 99 ; 100 ; (This implementation) 101 ; R = Y + 0.40200 * Cr + Cr 102 ; G = Y - 0.34414 * Cb + 0.28586 * Cr - Cr 103 ; B = Y - 0.22800 * Cb + Cb + Cb 104 105 movdqa xmm5,xmm6 ; xmm5=CbH 106 movdqa xmm2,xmm4 ; xmm2=CbL 107 paddw xmm6,xmm6 ; xmm6=2*CbH 108 paddw xmm4,xmm4 ; xmm4=2*CbL 109 movdqa xmm1,xmm7 ; xmm1=CrH 110 movdqa xmm3,xmm0 ; xmm3=CrL 111 paddw xmm7,xmm7 ; xmm7=2*CrH 112 paddw xmm0,xmm0 ; xmm0=2*CrL 113 114 pmulhw xmm6,[rel PW_MF0228] ; xmm6=(2*CbH * -FIX(0.22800)) 115 pmulhw xmm4,[rel PW_MF0228] ; xmm4=(2*CbL * -FIX(0.22800)) 116 pmulhw xmm7,[rel PW_F0402] ; xmm7=(2*CrH * FIX(0.40200)) 117 pmulhw xmm0,[rel PW_F0402] ; xmm0=(2*CrL * FIX(0.40200)) 118 119 paddw xmm6,[rel PW_ONE] 120 paddw xmm4,[rel PW_ONE] 121 psraw xmm6,1 ; xmm6=(CbH * -FIX(0.22800)) 122 psraw xmm4,1 ; xmm4=(CbL * -FIX(0.22800)) 123 paddw xmm7,[rel PW_ONE] 124 paddw xmm0,[rel PW_ONE] 125 psraw xmm7,1 ; xmm7=(CrH * FIX(0.40200)) 126 psraw xmm0,1 ; xmm0=(CrL * FIX(0.40200)) 127 128 paddw xmm6,xmm5 129 paddw xmm4,xmm2 130 paddw xmm6,xmm5 ; xmm6=(CbH * FIX(1.77200))=(B-Y)H 131 paddw xmm4,xmm2 ; xmm4=(CbL * FIX(1.77200))=(B-Y)L 132 paddw xmm7,xmm1 ; xmm7=(CrH * FIX(1.40200))=(R-Y)H 133 paddw xmm0,xmm3 ; xmm0=(CrL * FIX(1.40200))=(R-Y)L 134 135 movdqa XMMWORD [wk(0)], xmm6 ; wk(0)=(B-Y)H 136 movdqa XMMWORD [wk(1)], xmm7 ; wk(1)=(R-Y)H 137 138 movdqa xmm6,xmm5 139 movdqa xmm7,xmm2 140 punpcklwd xmm5,xmm1 141 punpckhwd xmm6,xmm1 142 pmaddwd xmm5,[rel PW_MF0344_F0285] 143 pmaddwd xmm6,[rel PW_MF0344_F0285] 144 punpcklwd xmm2,xmm3 145 punpckhwd xmm7,xmm3 146 pmaddwd xmm2,[rel PW_MF0344_F0285] 147 pmaddwd xmm7,[rel PW_MF0344_F0285] 148 149 paddd xmm5,[rel PD_ONEHALF] 150 paddd xmm6,[rel PD_ONEHALF] 151 psrad xmm5,SCALEBITS 152 psrad xmm6,SCALEBITS 153 paddd xmm2,[rel PD_ONEHALF] 154 paddd xmm7,[rel PD_ONEHALF] 155 psrad xmm2,SCALEBITS 156 psrad xmm7,SCALEBITS 157 158 packssdw xmm5,xmm6 ; xmm5=CbH*-FIX(0.344)+CrH*FIX(0.285) 159 packssdw xmm2,xmm7 ; xmm2=CbL*-FIX(0.344)+CrL*FIX(0.285) 160 psubw xmm5,xmm1 ; xmm5=CbH*-FIX(0.344)+CrH*-FIX(0.714)=(G-Y)H 161 psubw xmm2,xmm3 ; xmm2=CbL*-FIX(0.344)+CrL*-FIX(0.714)=(G-Y)L 162 163 movdqa XMMWORD [wk(2)], xmm5 ; wk(2)=(G-Y)H 164 165 mov al,2 ; Yctr 166 jmp short .Yloop_1st 167 168 .Yloop_2nd: 169 movdqa xmm0, XMMWORD [wk(1)] ; xmm0=(R-Y)H 170 movdqa xmm2, XMMWORD [wk(2)] ; xmm2=(G-Y)H 171 movdqa xmm4, XMMWORD [wk(0)] ; xmm4=(B-Y)H 172 173 .Yloop_1st: 174 movdqa xmm7, XMMWORD [rsi] ; xmm7=Y(0123456789ABCDEF) 175 176 pcmpeqw xmm6,xmm6 177 psrlw xmm6,BYTE_BIT ; xmm6={0xFF 0x00 0xFF 0x00 ..} 178 pand xmm6,xmm7 ; xmm6=Y(02468ACE)=YE 179 psrlw xmm7,BYTE_BIT ; xmm7=Y(13579BDF)=YO 180 181 movdqa xmm1,xmm0 ; xmm1=xmm0=(R-Y)(L/H) 182 movdqa xmm3,xmm2 ; xmm3=xmm2=(G-Y)(L/H) 183 movdqa xmm5,xmm4 ; xmm5=xmm4=(B-Y)(L/H) 184 185 paddw xmm0,xmm6 ; xmm0=((R-Y)+YE)=RE=R(02468ACE) 186 paddw xmm1,xmm7 ; xmm1=((R-Y)+YO)=RO=R(13579BDF) 187 packuswb xmm0,xmm0 ; xmm0=R(02468ACE********) 188 packuswb xmm1,xmm1 ; xmm1=R(13579BDF********) 189 190 paddw xmm2,xmm6 ; xmm2=((G-Y)+YE)=GE=G(02468ACE) 191 paddw xmm3,xmm7 ; xmm3=((G-Y)+YO)=GO=G(13579BDF) 192 packuswb xmm2,xmm2 ; xmm2=G(02468ACE********) 193 packuswb xmm3,xmm3 ; xmm3=G(13579BDF********) 194 195 paddw xmm4,xmm6 ; xmm4=((B-Y)+YE)=BE=B(02468ACE) 196 paddw xmm5,xmm7 ; xmm5=((B-Y)+YO)=BO=B(13579BDF) 197 packuswb xmm4,xmm4 ; xmm4=B(02468ACE********) 198 packuswb xmm5,xmm5 ; xmm5=B(13579BDF********) 199 200 %if RGB_PIXELSIZE == 3 ; --------------- 201 202 ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **) 203 ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **) 204 ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **) 205 ; xmmG=(** ** ** ** ** ** ** ** **), xmmH=(** ** ** ** ** ** ** ** **) 206 207 punpcklbw xmmA,xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E) 208 punpcklbw xmmE,xmmB ; xmmE=(20 01 22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F) 209 punpcklbw xmmD,xmmF ; xmmD=(11 21 13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F) 210 211 movdqa xmmG,xmmA 212 movdqa xmmH,xmmA 213 punpcklwd xmmA,xmmE ; xmmA=(00 10 20 01 02 12 22 03 04 14 24 05 06 16 26 07) 214 punpckhwd xmmG,xmmE ; xmmG=(08 18 28 09 0A 1A 2A 0B 0C 1C 2C 0D 0E 1E 2E 0F) 215 216 psrldq xmmH,2 ; xmmH=(02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E -- --) 217 psrldq xmmE,2 ; xmmE=(22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F -- --) 218 219 movdqa xmmC,xmmD 220 movdqa xmmB,xmmD 221 punpcklwd xmmD,xmmH ; xmmD=(11 21 02 12 13 23 04 14 15 25 06 16 17 27 08 18) 222 punpckhwd xmmC,xmmH ; xmmC=(19 29 0A 1A 1B 2B 0C 1C 1D 2D 0E 1E 1F 2F -- --) 223 224 psrldq xmmB,2 ; xmmB=(13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F -- --) 225 226 movdqa xmmF,xmmE 227 punpcklwd xmmE,xmmB ; xmmE=(22 03 13 23 24 05 15 25 26 07 17 27 28 09 19 29) 228 punpckhwd xmmF,xmmB ; xmmF=(2A 0B 1B 2B 2C 0D 1D 2D 2E 0F 1F 2F -- -- -- --) 229 230 pshufd xmmH,xmmA,0x4E; xmmH=(04 14 24 05 06 16 26 07 00 10 20 01 02 12 22 03) 231 movdqa xmmB,xmmE 232 punpckldq xmmA,xmmD ; xmmA=(00 10 20 01 11 21 02 12 02 12 22 03 13 23 04 14) 233 punpckldq xmmE,xmmH ; xmmE=(22 03 13 23 04 14 24 05 24 05 15 25 06 16 26 07) 234 punpckhdq xmmD,xmmB ; xmmD=(15 25 06 16 26 07 17 27 17 27 08 18 28 09 19 29) 235 236 pshufd xmmH,xmmG,0x4E; xmmH=(0C 1C 2C 0D 0E 1E 2E 0F 08 18 28 09 0A 1A 2A 0B) 237 movdqa xmmB,xmmF 238 punpckldq xmmG,xmmC ; xmmG=(08 18 28 09 19 29 0A 1A 0A 1A 2A 0B 1B 2B 0C 1C) 239 punpckldq xmmF,xmmH ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 2C 0D 1D 2D 0E 1E 2E 0F) 240 punpckhdq xmmC,xmmB ; xmmC=(1D 2D 0E 1E 2E 0F 1F 2F 1F 2F -- -- -- -- -- --) 241 242 punpcklqdq xmmA,xmmE ; xmmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05) 243 punpcklqdq xmmD,xmmG ; xmmD=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A) 244 punpcklqdq xmmF,xmmC ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F) 245 246 cmp rcx, byte SIZEOF_XMMWORD 247 jb short .column_st32 248 249 test rdi, SIZEOF_XMMWORD-1 250 jnz short .out1 251 ; --(aligned)------------------- 252 movntdq XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA 253 movntdq XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD 254 movntdq XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmF 255 jmp short .out0 256 .out1: ; --(unaligned)----------------- 257 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA 258 movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD 259 movdqu XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmF 260 .out0: 261 add rdi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr 262 sub rcx, byte SIZEOF_XMMWORD 263 jz near .endcolumn 264 265 add rsi, byte SIZEOF_XMMWORD ; inptr0 266 dec al ; Yctr 267 jnz near .Yloop_2nd 268 269 add rbx, byte SIZEOF_XMMWORD ; inptr1 270 add rdx, byte SIZEOF_XMMWORD ; inptr2 271 jmp near .columnloop 272 273 .column_st32: 274 lea rcx, [rcx+rcx*2] ; imul ecx, RGB_PIXELSIZE 275 cmp rcx, byte 2*SIZEOF_XMMWORD 276 jb short .column_st16 277 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA 278 movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD 279 add rdi, byte 2*SIZEOF_XMMWORD ; outptr 280 movdqa xmmA,xmmF 281 sub rcx, byte 2*SIZEOF_XMMWORD 282 jmp short .column_st15 283 .column_st16: 284 cmp rcx, byte SIZEOF_XMMWORD 285 jb short .column_st15 286 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA 287 add rdi, byte SIZEOF_XMMWORD ; outptr 288 movdqa xmmA,xmmD 289 sub rcx, byte SIZEOF_XMMWORD 290 .column_st15: 291 ; Store the lower 8 bytes of xmmA to the output when it has enough 292 ; space. 293 cmp rcx, byte SIZEOF_MMWORD 294 jb short .column_st7 295 movq XMM_MMWORD [rdi], xmmA 296 add rdi, byte SIZEOF_MMWORD 297 sub rcx, byte SIZEOF_MMWORD 298 psrldq xmmA, SIZEOF_MMWORD 299 .column_st7: 300 ; Store the lower 4 bytes of xmmA to the output when it has enough 301 ; space. 302 cmp rcx, byte SIZEOF_DWORD 303 jb short .column_st3 304 movd XMM_DWORD [rdi], xmmA 305 add rdi, byte SIZEOF_DWORD 306 sub rcx, byte SIZEOF_DWORD 307 psrldq xmmA, SIZEOF_DWORD 308 .column_st3: 309 ; Store the lower 2 bytes of rax to the output when it has enough 310 ; space. 311 movd eax, xmmA 312 cmp rcx, byte SIZEOF_WORD 313 jb short .column_st1 314 mov WORD [rdi], ax 315 add rdi, byte SIZEOF_WORD 316 sub rcx, byte SIZEOF_WORD 317 shr rax, 16 318 .column_st1: 319 ; Store the lower 1 byte of rax to the output when it has enough 320 ; space. 321 test rcx, rcx 322 jz short .endcolumn 323 mov BYTE [rdi], al 324 325 %else ; RGB_PIXELSIZE == 4 ; ----------- 326 327 %ifdef RGBX_FILLER_0XFF 328 pcmpeqb xmm6,xmm6 ; xmm6=XE=X(02468ACE********) 329 pcmpeqb xmm7,xmm7 ; xmm7=XO=X(13579BDF********) 330 %else 331 pxor xmm6,xmm6 ; xmm6=XE=X(02468ACE********) 332 pxor xmm7,xmm7 ; xmm7=XO=X(13579BDF********) 333 %endif 334 ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **) 335 ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **) 336 ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **) 337 ; xmmG=(30 32 34 36 38 3A 3C 3E **), xmmH=(31 33 35 37 39 3B 3D 3F **) 338 339 punpcklbw xmmA,xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E) 340 punpcklbw xmmE,xmmG ; xmmE=(20 30 22 32 24 34 26 36 28 38 2A 3A 2C 3C 2E 3E) 341 punpcklbw xmmB,xmmD ; xmmB=(01 11 03 13 05 15 07 17 09 19 0B 1B 0D 1D 0F 1F) 342 punpcklbw xmmF,xmmH ; xmmF=(21 31 23 33 25 35 27 37 29 39 2B 3B 2D 3D 2F 3F) 343 344 movdqa xmmC,xmmA 345 punpcklwd xmmA,xmmE ; xmmA=(00 10 20 30 02 12 22 32 04 14 24 34 06 16 26 36) 346 punpckhwd xmmC,xmmE ; xmmC=(08 18 28 38 0A 1A 2A 3A 0C 1C 2C 3C 0E 1E 2E 3E) 347 movdqa xmmG,xmmB 348 punpcklwd xmmB,xmmF ; xmmB=(01 11 21 31 03 13 23 33 05 15 25 35 07 17 27 37) 349 punpckhwd xmmG,xmmF ; xmmG=(09 19 29 39 0B 1B 2B 3B 0D 1D 2D 3D 0F 1F 2F 3F) 350 351 movdqa xmmD,xmmA 352 punpckldq xmmA,xmmB ; xmmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33) 353 punpckhdq xmmD,xmmB ; xmmD=(04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37) 354 movdqa xmmH,xmmC 355 punpckldq xmmC,xmmG ; xmmC=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B) 356 punpckhdq xmmH,xmmG ; xmmH=(0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F) 357 358 cmp rcx, byte SIZEOF_XMMWORD 359 jb short .column_st32 360 361 test rdi, SIZEOF_XMMWORD-1 362 jnz short .out1 363 ; --(aligned)------------------- 364 movntdq XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA 365 movntdq XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD 366 movntdq XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmC 367 movntdq XMMWORD [rdi+3*SIZEOF_XMMWORD], xmmH 368 jmp short .out0 369 .out1: ; --(unaligned)----------------- 370 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA 371 movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD 372 movdqu XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmC 373 movdqu XMMWORD [rdi+3*SIZEOF_XMMWORD], xmmH 374 .out0: 375 add rdi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr 376 sub rcx, byte SIZEOF_XMMWORD 377 jz near .endcolumn 378 379 add rsi, byte SIZEOF_XMMWORD ; inptr0 380 dec al ; Yctr 381 jnz near .Yloop_2nd 382 383 add rbx, byte SIZEOF_XMMWORD ; inptr1 384 add rdx, byte SIZEOF_XMMWORD ; inptr2 385 jmp near .columnloop 386 387 .column_st32: 388 cmp rcx, byte SIZEOF_XMMWORD/2 389 jb short .column_st16 390 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA 391 movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD 392 add rdi, byte 2*SIZEOF_XMMWORD ; outptr 393 movdqa xmmA,xmmC 394 movdqa xmmD,xmmH 395 sub rcx, byte SIZEOF_XMMWORD/2 396 .column_st16: 397 cmp rcx, byte SIZEOF_XMMWORD/4 398 jb short .column_st15 399 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA 400 add rdi, byte SIZEOF_XMMWORD ; outptr 401 movdqa xmmA,xmmD 402 sub rcx, byte SIZEOF_XMMWORD/4 403 .column_st15: 404 ; Store two pixels (8 bytes) of xmmA to the output when it has enough 405 ; space. 406 cmp rcx, byte SIZEOF_XMMWORD/8 407 jb short .column_st7 408 movq XMM_MMWORD [rdi], xmmA 409 add rdi, byte SIZEOF_XMMWORD/8*4 410 sub rcx, byte SIZEOF_XMMWORD/8 411 psrldq xmmA, SIZEOF_XMMWORD/8*4 412 .column_st7: 413 ; Store one pixel (4 bytes) of xmmA to the output when it has enough 414 ; space. 415 test rcx, rcx 416 jz short .endcolumn 417 movd XMM_DWORD [rdi], xmmA 418 419 %endif ; RGB_PIXELSIZE ; --------------- 420 421 .endcolumn: 422 sfence ; flush the write buffer 423 424 .return: 425 pop rbx 426 uncollect_args 427 mov rsp,rbp ; rsp <- aligned rbp 428 pop rsp ; rsp <- original rbp 429 pop rbp 430 ret 431 432 ; -------------------------------------------------------------------------- 433 ; 434 ; Upsample and color convert for the case of 2:1 horizontal and 2:1 vertical. 435 ; 436 ; GLOBAL(void) 437 ; jsimd_h2v2_merged_upsample_sse2 (JDIMENSION output_width, 438 ; JSAMPIMAGE input_buf, 439 ; JDIMENSION in_row_group_ctr, 440 ; JSAMPARRAY output_buf); 441 ; 442 443 ; r10 = JDIMENSION output_width 444 ; r11 = JSAMPIMAGE input_buf 445 ; r12 = JDIMENSION in_row_group_ctr 446 ; r13 = JSAMPARRAY output_buf 447 448 align 16 449 global EXTN(jsimd_h2v2_merged_upsample_sse2) 450 451 EXTN(jsimd_h2v2_merged_upsample_sse2): 452 push rbp 453 mov rax,rsp 454 mov rbp,rsp 455 collect_args 456 push rbx 457 458 mov eax, r10d 459 460 mov rdi, r11 461 mov ecx, r12d 462 mov rsi, JSAMPARRAY [rdi+0*SIZEOF_JSAMPARRAY] 463 mov rbx, JSAMPARRAY [rdi+1*SIZEOF_JSAMPARRAY] 464 mov rdx, JSAMPARRAY [rdi+2*SIZEOF_JSAMPARRAY] 465 mov rdi, r13 466 lea rsi, [rsi+rcx*SIZEOF_JSAMPROW] 467 468 push rdx ; inptr2 469 push rbx ; inptr1 470 push rsi ; inptr00 471 mov rbx,rsp 472 473 push rdi 474 push rcx 475 push rax 476 477 %ifdef WIN64 478 mov r8, rcx 479 mov r9, rdi 480 mov rcx, rax 481 mov rdx, rbx 482 %else 483 mov rdx, rcx 484 mov rcx, rdi 485 mov rdi, rax 486 mov rsi, rbx 487 %endif 488 489 call EXTN(jsimd_h2v1_merged_upsample_sse2) 490 491 pop rax 492 pop rcx 493 pop rdi 494 pop rsi 495 pop rbx 496 pop rdx 497 498 add rdi, byte SIZEOF_JSAMPROW ; outptr1 499 add rsi, byte SIZEOF_JSAMPROW ; inptr01 500 501 push rdx ; inptr2 502 push rbx ; inptr1 503 push rsi ; inptr00 504 mov rbx,rsp 505 506 push rdi 507 push rcx 508 push rax 509 510 %ifdef WIN64 511 mov r8, rcx 512 mov r9, rdi 513 mov rcx, rax 514 mov rdx, rbx 515 %else 516 mov rdx, rcx 517 mov rcx, rdi 518 mov rdi, rax 519 mov rsi, rbx 520 %endif 521 522 call EXTN(jsimd_h2v1_merged_upsample_sse2) 523 524 pop rax 525 pop rcx 526 pop rdi 527 pop rsi 528 pop rbx 529 pop rdx 530 531 pop rbx 532 uncollect_args 533 pop rbp 534 ret 535 536 ; For some reason, the OS X linker does not honor the request to align the 537 ; segment unless we do this. 538 align 16 539
