SDL_yuv_mmx.c (21615B)
1/* 2 Simple DirectMedia Layer 3 Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org> 4 5 This software is provided 'as-is', without any express or implied 6 warranty. In no event will the authors be held liable for any damages 7 arising from the use of this software. 8 9 Permission is granted to anyone to use this software for any purpose, 10 including commercial applications, and to alter it and redistribute it 11 freely, subject to the following restrictions: 12 13 1. The origin of this software must not be misrepresented; you must not 14 claim that you wrote the original software. If you use this software 15 in a product, an acknowledgment in the product documentation would be 16 appreciated but is not required. 17 2. Altered source versions must be plainly marked as such, and must not be 18 misrepresented as being the original software. 19 3. This notice may not be removed or altered from any source distribution. 20*/ 21#include "../SDL_internal.h" 22 23#if (__GNUC__ > 2) && defined(__i386__) && __OPTIMIZE__ && SDL_ASSEMBLY_ROUTINES 24 25#include "SDL_stdinc.h" 26 27#include "mmx.h" 28 29/* *INDENT-OFF* */ 30 31static mmx_t MMX_0080w = { .ud = {0x00800080, 0x00800080} }; 32static mmx_t MMX_00FFw = { .ud = {0x00ff00ff, 0x00ff00ff} }; 33static mmx_t MMX_FF00w = { .ud = {0xff00ff00, 0xff00ff00} }; 34 35static mmx_t MMX_Ycoeff = { .uw = {0x004a, 0x004a, 0x004a, 0x004a} }; 36 37static mmx_t MMX_UbluRGB = { .uw = {0x0072, 0x0072, 0x0072, 0x0072} }; 38static mmx_t MMX_VredRGB = { .uw = {0x0059, 0x0059, 0x0059, 0x0059} }; 39static mmx_t MMX_UgrnRGB = { .uw = {0xffea, 0xffea, 0xffea, 0xffea} }; 40static mmx_t MMX_VgrnRGB = { .uw = {0xffd2, 0xffd2, 0xffd2, 0xffd2} }; 41 42static mmx_t MMX_Ublu5x5 = { .uw = {0x0081, 0x0081, 0x0081, 0x0081} }; 43static mmx_t MMX_Vred5x5 = { .uw = {0x0066, 0x0066, 0x0066, 0x0066} }; 44static mmx_t MMX_Ugrn565 = { .uw = {0xffe8, 0xffe8, 0xffe8, 0xffe8} }; 45static mmx_t MMX_Vgrn565 = { .uw = {0xffcd, 0xffcd, 0xffcd, 0xffcd} }; 46 47static mmx_t MMX_red565 = { .uw = {0xf800, 0xf800, 0xf800, 0xf800} }; 48static mmx_t MMX_grn565 = { .uw = {0x07e0, 0x07e0, 0x07e0, 0x07e0} }; 49 50/** 51 This MMX assembler is my first assembler/MMX program ever. 52 Thus it maybe buggy. 53 Send patches to: 54 mvogt@rhrk.uni-kl.de 55 56 After it worked fine I have "obfuscated" the code a bit to have 57 more parallism in the MMX units. This means I moved 58 initilisation around and delayed other instruction. 59 Performance measurement did not show that this brought any advantage 60 but in theory it _should_ be faster this way. 61 62 The overall performanve gain to the C based dither was 30%-40%. 63 The MMX routine calculates 256bit=8RGB values in each cycle 64 (4 for row1 & 4 for row2) 65 66 The red/green/blue.. coefficents are taken from the mpeg_play 67 player. They look nice, but I dont know if you can have 68 better values, to avoid integer rounding errors. 69 70 71 IMPORTANT: 72 ========== 73 74 It is a requirement that the cr/cb/lum are 8 byte aligned and 75 the out are 16byte aligned or you will/may get segfaults 76 77*/ 78 79void ColorRGBDitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, 80 unsigned char *lum, unsigned char *cr, 81 unsigned char *cb, unsigned char *out, 82 int rows, int cols, int mod ) 83{ 84 Uint32 *row1; 85 Uint32 *row2; 86 87 unsigned char* y = lum +cols*rows; /* Pointer to the end */ 88 int x = 0; 89 row1 = (Uint32 *)out; /* 32 bit target */ 90 row2 = (Uint32 *)out+cols+mod; /* start of second row */ 91 mod = (mod+cols+mod)*4; /* increment for row1 in byte */ 92 93 __asm__ __volatile__ ( 94 /* tap dance to workaround the inability to use %%ebx at will... */ 95 /* move one thing to the stack... */ 96 "pushl $0\n" /* save a slot on the stack. */ 97 "pushl %%ebx\n" /* save %%ebx. */ 98 "movl %0, %%ebx\n" /* put the thing in ebx. */ 99 "movl %%ebx,4(%%esp)\n" /* put the thing in the stack slot. */ 100 "popl %%ebx\n" /* get back %%ebx (the PIC register). */ 101 102 ".align 8\n" 103 "1:\n" 104 105 /* create Cr (result in mm1) */ 106 "pushl %%ebx\n" 107 "movl 4(%%esp),%%ebx\n" 108 "movd (%%ebx),%%mm1\n" /* 0 0 0 0 v3 v2 v1 v0 */ 109 "popl %%ebx\n" 110 "pxor %%mm7,%%mm7\n" /* 00 00 00 00 00 00 00 00 */ 111 "movd (%2), %%mm2\n" /* 0 0 0 0 l3 l2 l1 l0 */ 112 "punpcklbw %%mm7,%%mm1\n" /* 0 v3 0 v2 00 v1 00 v0 */ 113 "punpckldq %%mm1,%%mm1\n" /* 00 v1 00 v0 00 v1 00 v0 */ 114 "psubw %9,%%mm1\n" /* mm1-128:r1 r1 r0 r0 r1 r1 r0 r0 */ 115 116 /* create Cr_g (result in mm0) */ 117 "movq %%mm1,%%mm0\n" /* r1 r1 r0 r0 r1 r1 r0 r0 */ 118 "pmullw %10,%%mm0\n" /* red*-46dec=0.7136*64 */ 119 "pmullw %11,%%mm1\n" /* red*89dec=1.4013*64 */ 120 "psraw $6, %%mm0\n" /* red=red/64 */ 121 "psraw $6, %%mm1\n" /* red=red/64 */ 122 123 /* create L1 L2 (result in mm2,mm4) */ 124 /* L2=lum+cols */ 125 "movq (%2,%4),%%mm3\n" /* 0 0 0 0 L3 L2 L1 L0 */ 126 "punpckldq %%mm3,%%mm2\n" /* L3 L2 L1 L0 l3 l2 l1 l0 */ 127 "movq %%mm2,%%mm4\n" /* L3 L2 L1 L0 l3 l2 l1 l0 */ 128 "pand %12,%%mm2\n" /* L3 0 L1 0 l3 0 l1 0 */ 129 "pand %13,%%mm4\n" /* 0 L2 0 L0 0 l2 0 l0 */ 130 "psrlw $8,%%mm2\n" /* 0 L3 0 L1 0 l3 0 l1 */ 131 132 /* create R (result in mm6) */ 133 "movq %%mm2,%%mm5\n" /* 0 L3 0 L1 0 l3 0 l1 */ 134 "movq %%mm4,%%mm6\n" /* 0 L2 0 L0 0 l2 0 l0 */ 135 "paddsw %%mm1, %%mm5\n" /* lum1+red:x R3 x R1 x r3 x r1 */ 136 "paddsw %%mm1, %%mm6\n" /* lum1+red:x R2 x R0 x r2 x r0 */ 137 "packuswb %%mm5,%%mm5\n" /* R3 R1 r3 r1 R3 R1 r3 r1 */ 138 "packuswb %%mm6,%%mm6\n" /* R2 R0 r2 r0 R2 R0 r2 r0 */ 139 "pxor %%mm7,%%mm7\n" /* 00 00 00 00 00 00 00 00 */ 140 "punpcklbw %%mm5,%%mm6\n" /* R3 R2 R1 R0 r3 r2 r1 r0 */ 141 142 /* create Cb (result in mm1) */ 143 "movd (%1), %%mm1\n" /* 0 0 0 0 u3 u2 u1 u0 */ 144 "punpcklbw %%mm7,%%mm1\n" /* 0 u3 0 u2 00 u1 00 u0 */ 145 "punpckldq %%mm1,%%mm1\n" /* 00 u1 00 u0 00 u1 00 u0 */ 146 "psubw %9,%%mm1\n" /* mm1-128:u1 u1 u0 u0 u1 u1 u0 u0 */ 147 148 /* create Cb_g (result in mm5) */ 149 "movq %%mm1,%%mm5\n" /* u1 u1 u0 u0 u1 u1 u0 u0 */ 150 "pmullw %14,%%mm5\n" /* blue*-109dec=1.7129*64 */ 151 "pmullw %15,%%mm1\n" /* blue*114dec=1.78125*64 */ 152 "psraw $6, %%mm5\n" /* blue=red/64 */ 153 "psraw $6, %%mm1\n" /* blue=blue/64 */ 154 155 /* create G (result in mm7) */ 156 "movq %%mm2,%%mm3\n" /* 0 L3 0 L1 0 l3 0 l1 */ 157 "movq %%mm4,%%mm7\n" /* 0 L2 0 L0 0 l2 0 l1 */ 158 "paddsw %%mm5, %%mm3\n" /* lum1+Cb_g:x G3t x G1t x g3t x g1t */ 159 "paddsw %%mm5, %%mm7\n" /* lum1+Cb_g:x G2t x G0t x g2t x g0t */ 160 "paddsw %%mm0, %%mm3\n" /* lum1+Cr_g:x G3 x G1 x g3 x g1 */ 161 "paddsw %%mm0, %%mm7\n" /* lum1+blue:x G2 x G0 x g2 x g0 */ 162 "packuswb %%mm3,%%mm3\n" /* G3 G1 g3 g1 G3 G1 g3 g1 */ 163 "packuswb %%mm7,%%mm7\n" /* G2 G0 g2 g0 G2 G0 g2 g0 */ 164 "punpcklbw %%mm3,%%mm7\n" /* G3 G2 G1 G0 g3 g2 g1 g0 */ 165 166 /* create B (result in mm5) */ 167 "movq %%mm2,%%mm3\n" /* 0 L3 0 L1 0 l3 0 l1 */ 168 "movq %%mm4,%%mm5\n" /* 0 L2 0 L0 0 l2 0 l1 */ 169 "paddsw %%mm1, %%mm3\n" /* lum1+blue:x B3 x B1 x b3 x b1 */ 170 "paddsw %%mm1, %%mm5\n" /* lum1+blue:x B2 x B0 x b2 x b0 */ 171 "packuswb %%mm3,%%mm3\n" /* B3 B1 b3 b1 B3 B1 b3 b1 */ 172 "packuswb %%mm5,%%mm5\n" /* B2 B0 b2 b0 B2 B0 b2 b0 */ 173 "punpcklbw %%mm3,%%mm5\n" /* B3 B2 B1 B0 b3 b2 b1 b0 */ 174 175 /* fill destination row1 (needed are mm6=Rr,mm7=Gg,mm5=Bb) */ 176 177 "pxor %%mm2,%%mm2\n" /* 0 0 0 0 0 0 0 0 */ 178 "pxor %%mm4,%%mm4\n" /* 0 0 0 0 0 0 0 0 */ 179 "movq %%mm6,%%mm1\n" /* R3 R2 R1 R0 r3 r2 r1 r0 */ 180 "movq %%mm5,%%mm3\n" /* B3 B2 B1 B0 b3 b2 b1 b0 */ 181 182 /* process lower lum */ 183 "punpcklbw %%mm4,%%mm1\n" /* 0 r3 0 r2 0 r1 0 r0 */ 184 "punpcklbw %%mm4,%%mm3\n" /* 0 b3 0 b2 0 b1 0 b0 */ 185 "movq %%mm1,%%mm2\n" /* 0 r3 0 r2 0 r1 0 r0 */ 186 "movq %%mm3,%%mm0\n" /* 0 b3 0 b2 0 b1 0 b0 */ 187 "punpcklwd %%mm1,%%mm3\n" /* 0 r1 0 b1 0 r0 0 b0 */ 188 "punpckhwd %%mm2,%%mm0\n" /* 0 r3 0 b3 0 r2 0 b2 */ 189 190 "pxor %%mm2,%%mm2\n" /* 0 0 0 0 0 0 0 0 */ 191 "movq %%mm7,%%mm1\n" /* G3 G2 G1 G0 g3 g2 g1 g0 */ 192 "punpcklbw %%mm1,%%mm2\n" /* g3 0 g2 0 g1 0 g0 0 */ 193 "punpcklwd %%mm4,%%mm2\n" /* 0 0 g1 0 0 0 g0 0 */ 194 "por %%mm3, %%mm2\n" /* 0 r1 g1 b1 0 r0 g0 b0 */ 195 "movq %%mm2,(%3)\n" /* wrote out ! row1 */ 196 197 "pxor %%mm2,%%mm2\n" /* 0 0 0 0 0 0 0 0 */ 198 "punpcklbw %%mm1,%%mm4\n" /* g3 0 g2 0 g1 0 g0 0 */ 199 "punpckhwd %%mm2,%%mm4\n" /* 0 0 g3 0 0 0 g2 0 */ 200 "por %%mm0, %%mm4\n" /* 0 r3 g3 b3 0 r2 g2 b2 */ 201 "movq %%mm4,8(%3)\n" /* wrote out ! row1 */ 202 203 /* fill destination row2 (needed are mm6=Rr,mm7=Gg,mm5=Bb) */ 204 /* this can be done "destructive" */ 205 "pxor %%mm2,%%mm2\n" /* 0 0 0 0 0 0 0 0 */ 206 "punpckhbw %%mm2,%%mm6\n" /* 0 R3 0 R2 0 R1 0 R0 */ 207 "punpckhbw %%mm1,%%mm5\n" /* G3 B3 G2 B2 G1 B1 G0 B0 */ 208 "movq %%mm5,%%mm1\n" /* G3 B3 G2 B2 G1 B1 G0 B0 */ 209 "punpcklwd %%mm6,%%mm1\n" /* 0 R1 G1 B1 0 R0 G0 B0 */ 210 "movq %%mm1,(%5)\n" /* wrote out ! row2 */ 211 "punpckhwd %%mm6,%%mm5\n" /* 0 R3 G3 B3 0 R2 G2 B2 */ 212 "movq %%mm5,8(%5)\n" /* wrote out ! row2 */ 213 214 "addl $4,%2\n" /* lum+4 */ 215 "leal 16(%3),%3\n" /* row1+16 */ 216 "leal 16(%5),%5\n" /* row2+16 */ 217 "addl $2,(%%esp)\n" /* cr+2 */ 218 "addl $2,%1\n" /* cb+2 */ 219 220 "addl $4,%6\n" /* x+4 */ 221 "cmpl %4,%6\n" 222 223 "jl 1b\n" 224 "addl %4,%2\n" /* lum += cols */ 225 "addl %8,%3\n" /* row1+= mod */ 226 "addl %8,%5\n" /* row2+= mod */ 227 "movl $0,%6\n" /* x=0 */ 228 "cmpl %7,%2\n" 229 "jl 1b\n" 230 231 "addl $4,%%esp\n" /* get rid of the stack slot we reserved. */ 232 "emms\n" /* reset MMX registers. */ 233 : 234 : "m" (cr), "r"(cb),"r"(lum), 235 "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod), 236 "m"(MMX_0080w),"m"(MMX_VgrnRGB),"m"(MMX_VredRGB), 237 "m"(MMX_FF00w),"m"(MMX_00FFw),"m"(MMX_UgrnRGB), 238 "m"(MMX_UbluRGB) 239 ); 240} 241 242void Color565DitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, 243 unsigned char *lum, unsigned char *cr, 244 unsigned char *cb, unsigned char *out, 245 int rows, int cols, int mod ) 246{ 247 Uint16 *row1; 248 Uint16 *row2; 249 250 unsigned char* y = lum +cols*rows; /* Pointer to the end */ 251 int x = 0; 252 row1 = (Uint16 *)out; /* 16 bit target */ 253 row2 = (Uint16 *)out+cols+mod; /* start of second row */ 254 mod = (mod+cols+mod)*2; /* increment for row1 in byte */ 255 256 __asm__ __volatile__( 257 /* tap dance to workaround the inability to use %%ebx at will... */ 258 /* move one thing to the stack... */ 259 "pushl $0\n" /* save a slot on the stack. */ 260 "pushl %%ebx\n" /* save %%ebx. */ 261 "movl %0, %%ebx\n" /* put the thing in ebx. */ 262 "movl %%ebx, 4(%%esp)\n" /* put the thing in the stack slot. */ 263 "popl %%ebx\n" /* get back %%ebx (the PIC register). */ 264 265 ".align 8\n" 266 "1:\n" 267 268 "movd (%1), %%mm0\n" /* 4 Cb 0 0 0 0 u3 u2 u1 u0 */ 269 "pxor %%mm7, %%mm7\n" 270 "pushl %%ebx\n" 271 "movl 4(%%esp), %%ebx\n" 272 "movd (%%ebx), %%mm1\n" /* 4 Cr 0 0 0 0 v3 v2 v1 v0 */ 273 "popl %%ebx\n" 274 275 "punpcklbw %%mm7, %%mm0\n" /* 4 W cb 0 u3 0 u2 0 u1 0 u0 */ 276 "punpcklbw %%mm7, %%mm1\n" /* 4 W cr 0 v3 0 v2 0 v1 0 v0 */ 277 "psubw %9, %%mm0\n" 278 "psubw %9, %%mm1\n" 279 "movq %%mm0, %%mm2\n" /* Cb 0 u3 0 u2 0 u1 0 u0 */ 280 "movq %%mm1, %%mm3\n" /* Cr */ 281 "pmullw %10, %%mm2\n" /* Cb2green 0 R3 0 R2 0 R1 0 R0 */ 282 "movq (%2), %%mm6\n" /* L1 l7 L6 L5 L4 L3 L2 L1 L0 */ 283 "pmullw %11, %%mm0\n" /* Cb2blue */ 284 "pand %12, %%mm6\n" /* L1 00 L6 00 L4 00 L2 00 L0 */ 285 "pmullw %13, %%mm3\n" /* Cr2green */ 286 "movq (%2), %%mm7\n" /* L2 */ 287 "pmullw %14, %%mm1\n" /* Cr2red */ 288 "psrlw $8, %%mm7\n" /* L2 00 L7 00 L5 00 L3 00 L1 */ 289 "pmullw %15, %%mm6\n" /* lum1 */ 290 "paddw %%mm3, %%mm2\n" /* Cb2green + Cr2green == green */ 291 "pmullw %15, %%mm7\n" /* lum2 */ 292 293 "movq %%mm6, %%mm4\n" /* lum1 */ 294 "paddw %%mm0, %%mm6\n" /* lum1 +blue 00 B6 00 B4 00 B2 00 B0 */ 295 "movq %%mm4, %%mm5\n" /* lum1 */ 296 "paddw %%mm1, %%mm4\n" /* lum1 +red 00 R6 00 R4 00 R2 00 R0 */ 297 "paddw %%mm2, %%mm5\n" /* lum1 +green 00 G6 00 G4 00 G2 00 G0 */ 298 "psraw $6, %%mm4\n" /* R1 0 .. 64 */ 299 "movq %%mm7, %%mm3\n" /* lum2 00 L7 00 L5 00 L3 00 L1 */ 300 "psraw $6, %%mm5\n" /* G1 - .. + */ 301 "paddw %%mm0, %%mm7\n" /* Lum2 +blue 00 B7 00 B5 00 B3 00 B1 */ 302 "psraw $6, %%mm6\n" /* B1 0 .. 64 */ 303 "packuswb %%mm4, %%mm4\n" /* R1 R1 */ 304 "packuswb %%mm5, %%mm5\n" /* G1 G1 */ 305 "packuswb %%mm6, %%mm6\n" /* B1 B1 */ 306 "punpcklbw %%mm4, %%mm4\n" 307 "punpcklbw %%mm5, %%mm5\n" 308 309 "pand %16, %%mm4\n" 310 "psllw $3, %%mm5\n" /* GREEN 1 */ 311 "punpcklbw %%mm6, %%mm6\n" 312 "pand %17, %%mm5\n" 313 "pand %16, %%mm6\n" 314 "por %%mm5, %%mm4\n" /* */ 315 "psrlw $11, %%mm6\n" /* BLUE 1 */ 316 "movq %%mm3, %%mm5\n" /* lum2 */ 317 "paddw %%mm1, %%mm3\n" /* lum2 +red 00 R7 00 R5 00 R3 00 R1 */ 318 "paddw %%mm2, %%mm5\n" /* lum2 +green 00 G7 00 G5 00 G3 00 G1 */ 319 "psraw $6, %%mm3\n" /* R2 */ 320 "por %%mm6, %%mm4\n" /* MM4 */ 321 "psraw $6, %%mm5\n" /* G2 */ 322 "movq (%2, %4), %%mm6\n" /* L3 load lum2 */ 323 "psraw $6, %%mm7\n" 324 "packuswb %%mm3, %%mm3\n" 325 "packuswb %%mm5, %%mm5\n" 326 "packuswb %%mm7, %%mm7\n" 327 "pand %12, %%mm6\n" /* L3 */ 328 "punpcklbw %%mm3, %%mm3\n" 329 "punpcklbw %%mm5, %%mm5\n" 330 "pmullw %15, %%mm6\n" /* lum3 */ 331 "punpcklbw %%mm7, %%mm7\n" 332 "psllw $3, %%mm5\n" /* GREEN 2 */ 333 "pand %16, %%mm7\n" 334 "pand %16, %%mm3\n" 335 "psrlw $11, %%mm7\n" /* BLUE 2 */ 336 "pand %17, %%mm5\n" 337 "por %%mm7, %%mm3\n" 338 "movq (%2,%4), %%mm7\n" /* L4 load lum2 */ 339 "por %%mm5, %%mm3\n" 340 "psrlw $8, %%mm7\n" /* L4 */ 341 "movq %%mm4, %%mm5\n" 342 "punpcklwd %%mm3, %%mm4\n" 343 "pmullw %15, %%mm7\n" /* lum4 */ 344 "punpckhwd %%mm3, %%mm5\n" 345 346 "movq %%mm4, (%3)\n" /* write row1 */ 347 "movq %%mm5, 8(%3)\n" /* write row1 */ 348 349 "movq %%mm6, %%mm4\n" /* Lum3 */ 350 "paddw %%mm0, %%mm6\n" /* Lum3 +blue */ 351 352 "movq %%mm4, %%mm5\n" /* Lum3 */ 353 "paddw %%mm1, %%mm4\n" /* Lum3 +red */ 354 "paddw %%mm2, %%mm5\n" /* Lum3 +green */ 355 "psraw $6, %%mm4\n" 356 "movq %%mm7, %%mm3\n" /* Lum4 */ 357 "psraw $6, %%mm5\n" 358 "paddw %%mm0, %%mm7\n" /* Lum4 +blue */ 359 "psraw $6, %%mm6\n" /* Lum3 +blue */ 360 "movq %%mm3, %%mm0\n" /* Lum4 */ 361 "packuswb %%mm4, %%mm4\n" 362 "paddw %%mm1, %%mm3\n" /* Lum4 +red */ 363 "packuswb %%mm5, %%mm5\n" 364 "paddw %%mm2, %%mm0\n" /* Lum4 +green */ 365 "packuswb %%mm6, %%mm6\n" 366 "punpcklbw %%mm4, %%mm4\n" 367 "punpcklbw %%mm5, %%mm5\n" 368 "punpcklbw %%mm6, %%mm6\n" 369 "psllw $3, %%mm5\n" /* GREEN 3 */ 370 "pand %16, %%mm4\n" 371 "psraw $6, %%mm3\n" /* psr 6 */ 372 "psraw $6, %%mm0\n" 373 "pand %16, %%mm6\n" /* BLUE */ 374 "pand %17, %%mm5\n" 375 "psrlw $11, %%mm6\n" /* BLUE 3 */ 376 "por %%mm5, %%mm4\n" 377 "psraw $6, %%mm7\n" 378 "por %%mm6, %%mm4\n" 379 "packuswb %%mm3, %%mm3\n" 380 "packuswb %%mm0, %%mm0\n" 381 "packuswb %%mm7, %%mm7\n" 382 "punpcklbw %%mm3, %%mm3\n" 383 "punpcklbw %%mm0, %%mm0\n" 384 "punpcklbw %%mm7, %%mm7\n" 385 "pand %16, %%mm3\n" 386 "pand %16, %%mm7\n" /* BLUE */ 387 "psllw $3, %%mm0\n" /* GREEN 4 */ 388 "psrlw $11, %%mm7\n" 389 "pand %17, %%mm0\n" 390 "por %%mm7, %%mm3\n" 391 "por %%mm0, %%mm3\n" 392 393 "movq %%mm4, %%mm5\n" 394 395 "punpcklwd %%mm3, %%mm4\n" 396 "punpckhwd %%mm3, %%mm5\n" 397 398 "movq %%mm4, (%5)\n" 399 "movq %%mm5, 8(%5)\n" 400 401 "addl $8, %6\n" 402 "addl $8, %2\n" 403 "addl $4, (%%esp)\n" 404 "addl $4, %1\n" 405 "cmpl %4, %6\n" 406 "leal 16(%3), %3\n" 407 "leal 16(%5),%5\n" /* row2+16 */ 408 409 "jl 1b\n" 410 "addl %4, %2\n" /* lum += cols */ 411 "addl %8, %3\n" /* row1+= mod */ 412 "addl %8, %5\n" /* row2+= mod */ 413 "movl $0, %6\n" /* x=0 */ 414 "cmpl %7, %2\n" 415 "jl 1b\n" 416 "addl $4, %%esp\n" /* get rid of the stack slot we reserved. */ 417 "emms\n" 418 : 419 : "m" (cr), "r"(cb),"r"(lum), 420 "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod), 421 "m"(MMX_0080w),"m"(MMX_Ugrn565),"m"(MMX_Ublu5x5), 422 "m"(MMX_00FFw),"m"(MMX_Vgrn565),"m"(MMX_Vred5x5), 423 "m"(MMX_Ycoeff),"m"(MMX_red565),"m"(MMX_grn565) 424 ); 425} 426 427/* *INDENT-ON* */ 428 429#endif /* GCC3 i386 inline assembly */ 430 431/* vi: set ts=4 sw=4 expandtab: */