Mercurial > sdl-ios-xcode
annotate src/video/SDL_yuv_mmx.c @ 869:ae4ab3ac89a9
Instructive comments from Max Horn
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 04 Mar 2004 05:39:17 +0000 |
| parents | b8d311d90021 |
| children | b4b64bb88f2f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
769
b8d311d90021
Updated copyright information for 2004 (Happy New Year!)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 | |
| 29 #if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT) | |
| 30 | |
| 31 #include "SDL_types.h" | |
| 32 | |
| 33 #ifdef __ELF__ | |
| 34 #define ASM_VAR(X) _##X | |
| 35 #else | |
| 36 #define ASM_VAR(X) X | |
| 37 #endif | |
| 38 | |
| 39 static unsigned int ASM_VAR(MMX_0080w)[] = {0x00800080, 0x00800080}; | |
| 40 static unsigned int ASM_VAR(MMX_00FFw)[] = {0x00ff00ff, 0x00ff00ff}; | |
| 41 static unsigned int ASM_VAR(MMX_FF00w)[] = {0xff00ff00, 0xff00ff00}; | |
| 42 | |
| 43 static unsigned short ASM_VAR(MMX_Ycoeff)[] = {0x004a, 0x004a, 0x004a, 0x004a}; | |
| 44 | |
| 45 static unsigned short ASM_VAR(MMX_UbluRGB)[] = {0x0072, 0x0072, 0x0072, 0x0072}; | |
| 46 static unsigned short ASM_VAR(MMX_VredRGB)[] = {0x0059, 0x0059, 0x0059, 0x0059}; | |
| 47 static unsigned short ASM_VAR(MMX_UgrnRGB)[] = {0xffea, 0xffea, 0xffea, 0xffea}; | |
| 48 static unsigned short ASM_VAR(MMX_VgrnRGB)[] = {0xffd2, 0xffd2, 0xffd2, 0xffd2}; | |
| 49 | |
| 50 static unsigned short ASM_VAR(MMX_Ublu5x5)[] = {0x0081, 0x0081, 0x0081, 0x0081}; | |
| 51 static unsigned short ASM_VAR(MMX_Vred5x5)[] = {0x0066, 0x0066, 0x0066, 0x0066}; | |
| 52 static unsigned short ASM_VAR(MMX_Ugrn555)[] = {0xffe7, 0xffe7, 0xffe7, 0xffe7}; | |
| 53 static unsigned short ASM_VAR(MMX_Vgrn555)[] = {0xffcc, 0xffcc, 0xffcc, 0xffcc}; | |
| 54 static unsigned short ASM_VAR(MMX_Ugrn565)[] = {0xffe8, 0xffe8, 0xffe8, 0xffe8}; | |
| 55 static unsigned short ASM_VAR(MMX_Vgrn565)[] = {0xffcd, 0xffcd, 0xffcd, 0xffcd}; | |
| 56 | |
| 57 static unsigned short ASM_VAR(MMX_red555)[] = {0x7c00, 0x7c00, 0x7c00, 0x7c00}; | |
| 58 static unsigned short ASM_VAR(MMX_red565)[] = {0xf800, 0xf800, 0xf800, 0xf800}; | |
| 59 static unsigned short ASM_VAR(MMX_grn555)[] = {0x03e0, 0x03e0, 0x03e0, 0x03e0}; | |
| 60 static unsigned short ASM_VAR(MMX_grn565)[] = {0x07e0, 0x07e0, 0x07e0, 0x07e0}; | |
| 61 static unsigned short ASM_VAR(MMX_blu5x5)[] = {0x001f, 0x001f, 0x001f, 0x001f}; | |
| 62 | |
| 63 /** | |
| 64 This MMX assembler is my first assembler/MMX program ever. | |
| 65 Thus it maybe buggy. | |
| 66 Send patches to: | |
| 67 mvogt@rhrk.uni-kl.de | |
| 68 | |
| 69 After it worked fine I have "obfuscated" the code a bit to have | |
| 70 more parallism in the MMX units. This means I moved | |
| 71 initilisation around and delayed other instruction. | |
| 72 Performance measurement did not show that this brought any advantage | |
| 73 but in theory it _should_ be faster this way. | |
| 74 | |
| 75 The overall performanve gain to the C based dither was 30%-40%. | |
| 76 The MMX routine calculates 256bit=8RGB values in each cycle | |
| 77 (4 for row1 & 4 for row2) | |
| 78 | |
| 79 The red/green/blue.. coefficents are taken from the mpeg_play | |
| 80 player. They look nice, but I dont know if you can have | |
| 81 better values, to avoid integer rounding errors. | |
| 82 | |
| 83 | |
| 84 IMPORTANT: | |
| 85 ========== | |
| 86 | |
| 87 It is a requirement that the cr/cb/lum are 8 byte aligned and | |
| 88 the out are 16byte aligned or you will/may get segfaults | |
| 89 | |
| 90 */ | |
| 91 | |
| 92 void ColorRGBDitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, | |
| 93 unsigned char *lum, unsigned char *cr, | |
| 94 unsigned char *cb, unsigned char *out, | |
| 95 int rows, int cols, int mod ) | |
| 96 { | |
| 97 Uint32 *row1; | |
| 98 Uint32 *row2; | |
| 99 | |
| 100 unsigned char* y = lum +cols*rows; // Pointer to the end | |
| 101 int x=0; | |
| 102 row1 = (Uint32 *)out; // 32 bit target | |
| 103 row2 = (Uint32 *)out+cols+mod; // start of second row | |
| 104 mod = (mod+cols+mod)*4; // increment for row1 in byte | |
| 105 | |
| 106 __asm__ __volatile__ ( | |
| 107 /* We don't really care about PIC - the code should be rewritten to use | |
| 108 relative addressing for the static tables, so right now we take the | |
| 109 COW hit on the pages this code resides. Big deal. | |
| 110 This spill is just to reduce register pressure in the PIC case. */ | |
| 111 "pushl %%ebx\n" | |
| 112 "movl %0, %%ebx\n" | |
| 113 | |
| 114 ".align 8\n" | |
| 115 "1:\n" | |
| 116 | |
| 117 // create Cr (result in mm1) | |
| 118 "movd (%%ebx), %%mm1\n" // 0 0 0 0 v3 v2 v1 v0 | |
| 119 "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 | |
| 120 "movd (%2), %%mm2\n" // 0 0 0 0 l3 l2 l1 l0 | |
| 121 "punpcklbw %%mm7,%%mm1\n" // 0 v3 0 v2 00 v1 00 v0 | |
| 122 "punpckldq %%mm1,%%mm1\n" // 00 v1 00 v0 00 v1 00 v0 | |
| 123 "psubw _MMX_0080w,%%mm1\n" // mm1-128:r1 r1 r0 r0 r1 r1 r0 r0 | |
| 124 | |
| 125 // create Cr_g (result in mm0) | |
| 126 "movq %%mm1,%%mm0\n" // r1 r1 r0 r0 r1 r1 r0 r0 | |
| 127 "pmullw _MMX_VgrnRGB,%%mm0\n"// red*-46dec=0.7136*64 | |
| 128 "pmullw _MMX_VredRGB,%%mm1\n"// red*89dec=1.4013*64 | |
| 129 "psraw $6, %%mm0\n" // red=red/64 | |
| 130 "psraw $6, %%mm1\n" // red=red/64 | |
| 131 | |
| 132 // create L1 L2 (result in mm2,mm4) | |
| 133 // L2=lum+cols | |
| 134 "movq (%2,%4),%%mm3\n" // 0 0 0 0 L3 L2 L1 L0 | |
| 135 "punpckldq %%mm3,%%mm2\n" // L3 L2 L1 L0 l3 l2 l1 l0 | |
| 136 "movq %%mm2,%%mm4\n" // L3 L2 L1 L0 l3 l2 l1 l0 | |
| 137 "pand _MMX_FF00w,%%mm2\n" // L3 0 L1 0 l3 0 l1 0 | |
| 138 "pand _MMX_00FFw,%%mm4\n" // 0 L2 0 L0 0 l2 0 l0 | |
| 139 "psrlw $8,%%mm2\n" // 0 L3 0 L1 0 l3 0 l1 | |
| 140 | |
| 141 // create R (result in mm6) | |
| 142 "movq %%mm2,%%mm5\n" // 0 L3 0 L1 0 l3 0 l1 | |
| 143 "movq %%mm4,%%mm6\n" // 0 L2 0 L0 0 l2 0 l0 | |
| 144 "paddsw %%mm1, %%mm5\n" // lum1+red:x R3 x R1 x r3 x r1 | |
| 145 "paddsw %%mm1, %%mm6\n" // lum1+red:x R2 x R0 x r2 x r0 | |
| 146 "packuswb %%mm5,%%mm5\n" // R3 R1 r3 r1 R3 R1 r3 r1 | |
| 147 "packuswb %%mm6,%%mm6\n" // R2 R0 r2 r0 R2 R0 r2 r0 | |
| 148 "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 | |
| 149 "punpcklbw %%mm5,%%mm6\n" // R3 R2 R1 R0 r3 r2 r1 r0 | |
| 150 | |
| 151 // create Cb (result in mm1) | |
| 152 "movd (%1), %%mm1\n" // 0 0 0 0 u3 u2 u1 u0 | |
| 153 "punpcklbw %%mm7,%%mm1\n" // 0 u3 0 u2 00 u1 00 u0 | |
| 154 "punpckldq %%mm1,%%mm1\n" // 00 u1 00 u0 00 u1 00 u0 | |
| 155 "psubw _MMX_0080w,%%mm1\n" // mm1-128:u1 u1 u0 u0 u1 u1 u0 u0 | |
| 156 // create Cb_g (result in mm5) | |
| 157 "movq %%mm1,%%mm5\n" // u1 u1 u0 u0 u1 u1 u0 u0 | |
| 158 "pmullw _MMX_UgrnRGB,%%mm5\n" // blue*-109dec=1.7129*64 | |
| 159 "pmullw _MMX_UbluRGB,%%mm1\n" // blue*114dec=1.78125*64 | |
| 160 "psraw $6, %%mm5\n" // blue=red/64 | |
| 161 "psraw $6, %%mm1\n" // blue=blue/64 | |
| 162 | |
| 163 // create G (result in mm7) | |
| 164 "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 | |
| 165 "movq %%mm4,%%mm7\n" // 0 L2 0 L0 0 l2 0 l1 | |
| 166 "paddsw %%mm5, %%mm3\n" // lum1+Cb_g:x G3t x G1t x g3t x g1t | |
| 167 "paddsw %%mm5, %%mm7\n" // lum1+Cb_g:x G2t x G0t x g2t x g0t | |
| 168 "paddsw %%mm0, %%mm3\n" // lum1+Cr_g:x G3 x G1 x g3 x g1 | |
| 169 "paddsw %%mm0, %%mm7\n" // lum1+blue:x G2 x G0 x g2 x g0 | |
| 170 "packuswb %%mm3,%%mm3\n" // G3 G1 g3 g1 G3 G1 g3 g1 | |
| 171 "packuswb %%mm7,%%mm7\n" // G2 G0 g2 g0 G2 G0 g2 g0 | |
| 172 "punpcklbw %%mm3,%%mm7\n" // G3 G2 G1 G0 g3 g2 g1 g0 | |
| 173 | |
| 174 // create B (result in mm5) | |
| 175 "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 | |
| 176 "movq %%mm4,%%mm5\n" // 0 L2 0 L0 0 l2 0 l1 | |
| 177 "paddsw %%mm1, %%mm3\n" // lum1+blue:x B3 x B1 x b3 x b1 | |
| 178 "paddsw %%mm1, %%mm5\n" // lum1+blue:x B2 x B0 x b2 x b0 | |
| 179 "packuswb %%mm3,%%mm3\n" // B3 B1 b3 b1 B3 B1 b3 b1 | |
| 180 "packuswb %%mm5,%%mm5\n" // B2 B0 b2 b0 B2 B0 b2 b0 | |
| 181 "punpcklbw %%mm3,%%mm5\n" // B3 B2 B1 B0 b3 b2 b1 b0 | |
| 182 | |
| 183 // fill destination row1 (needed are mm6=Rr,mm7=Gg,mm5=Bb) | |
| 184 | |
| 185 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 186 "pxor %%mm4,%%mm4\n" // 0 0 0 0 0 0 0 0 | |
| 187 "movq %%mm6,%%mm1\n" // R3 R2 R1 R0 r3 r2 r1 r0 | |
| 188 "movq %%mm5,%%mm3\n" // B3 B2 B1 B0 b3 b2 b1 b0 | |
| 189 // process lower lum | |
| 190 "punpcklbw %%mm4,%%mm1\n" // 0 r3 0 r2 0 r1 0 r0 | |
| 191 "punpcklbw %%mm4,%%mm3\n" // 0 b3 0 b2 0 b1 0 b0 | |
| 192 "movq %%mm1,%%mm2\n" // 0 r3 0 r2 0 r1 0 r0 | |
| 193 "movq %%mm3,%%mm0\n" // 0 b3 0 b2 0 b1 0 b0 | |
| 194 "punpcklwd %%mm1,%%mm3\n" // 0 r1 0 b1 0 r0 0 b0 | |
| 195 "punpckhwd %%mm2,%%mm0\n" // 0 r3 0 b3 0 r2 0 b2 | |
| 196 | |
| 197 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 198 "movq %%mm7,%%mm1\n" // G3 G2 G1 G0 g3 g2 g1 g0 | |
| 199 "punpcklbw %%mm1,%%mm2\n" // g3 0 g2 0 g1 0 g0 0 | |
| 200 "punpcklwd %%mm4,%%mm2\n" // 0 0 g1 0 0 0 g0 0 | |
| 201 "por %%mm3, %%mm2\n" // 0 r1 g1 b1 0 r0 g0 b0 | |
| 202 "movq %%mm2,(%3)\n" // wrote out ! row1 | |
| 203 | |
| 204 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 205 "punpcklbw %%mm1,%%mm4\n" // g3 0 g2 0 g1 0 g0 0 | |
| 206 "punpckhwd %%mm2,%%mm4\n" // 0 0 g3 0 0 0 g2 0 | |
| 207 "por %%mm0, %%mm4\n" // 0 r3 g3 b3 0 r2 g2 b2 | |
| 208 "movq %%mm4,8(%3)\n" // wrote out ! row1 | |
| 209 | |
| 210 // fill destination row2 (needed are mm6=Rr,mm7=Gg,mm5=Bb) | |
| 211 // this can be done "destructive" | |
| 212 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 213 "punpckhbw %%mm2,%%mm6\n" // 0 R3 0 R2 0 R1 0 R0 | |
| 214 "punpckhbw %%mm1,%%mm5\n" // G3 B3 G2 B2 G1 B1 G0 B0 | |
| 215 "movq %%mm5,%%mm1\n" // G3 B3 G2 B2 G1 B1 G0 B0 | |
| 216 "punpcklwd %%mm6,%%mm1\n" // 0 R1 G1 B1 0 R0 G0 B0 | |
| 217 "movq %%mm1,(%5)\n" // wrote out ! row2 | |
| 218 "punpckhwd %%mm6,%%mm5\n" // 0 R3 G3 B3 0 R2 G2 B2 | |
| 219 "movq %%mm5,8(%5)\n" // wrote out ! row2 | |
| 220 | |
| 221 "addl $4,%2\n" // lum+4 | |
| 222 "leal 16(%3),%3\n" // row1+16 | |
| 223 "leal 16(%5),%5\n" // row2+16 | |
| 224 "addl $2, %%ebx\n" // cr+2 | |
| 225 "addl $2, %1\n" // cb+2 | |
| 226 | |
| 227 "addl $4,%6\n" // x+4 | |
| 228 "cmpl %4,%6\n" | |
| 229 | |
| 230 "jl 1b\n" | |
| 231 "addl %4, %2\n" // lum += cols | |
| 232 "addl %8, %3\n" // row1+= mod | |
| 233 "addl %8, %5\n" // row2+= mod | |
| 234 "movl $0, %6\n" // x=0 | |
| 235 "cmpl %7, %2\n" | |
| 236 "jl 1b\n" | |
| 237 "emms\n" | |
| 238 "popl %%ebx\n" | |
| 239 : | |
| 240 : "m" (cr), "r"(cb),"r"(lum), | |
| 241 "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod) | |
| 242 : "%ebx" | |
| 243 ); | |
| 244 } | |
| 245 | |
| 246 void Color565DitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, | |
| 247 unsigned char *lum, unsigned char *cr, | |
| 248 unsigned char *cb, unsigned char *out, | |
| 249 int rows, int cols, int mod ) | |
| 250 { | |
| 251 Uint16 *row1; | |
| 252 Uint16 *row2; | |
| 253 | |
| 254 unsigned char* y = lum +cols*rows; /* Pointer to the end */ | |
| 255 int x=0; | |
| 256 row1 = (Uint16 *)out; /* 16 bit target */ | |
| 257 row2 = (Uint16 *)out+cols+mod; /* start of second row */ | |
| 258 mod = (mod+cols+mod)*2; /* increment for row1 in byte */ | |
| 259 | |
| 260 | |
| 261 __asm__ __volatile__( | |
| 262 "pushl %%ebx\n" | |
| 263 "movl %0, %%ebx\n" | |
| 264 | |
| 265 ".align 8\n" | |
| 266 "1:\n" | |
| 267 "movd (%1), %%mm0\n" // 4 Cb 0 0 0 0 u3 u2 u1 u0 | |
| 268 "pxor %%mm7, %%mm7\n" | |
| 269 "movd (%%ebx), %%mm1\n" // 4 Cr 0 0 0 0 v3 v2 v1 v0 | |
| 270 "punpcklbw %%mm7, %%mm0\n" // 4 W cb 0 u3 0 u2 0 u1 0 u0 | |
| 271 "punpcklbw %%mm7, %%mm1\n" // 4 W cr 0 v3 0 v2 0 v1 0 v0 | |
| 272 "psubw _MMX_0080w, %%mm0\n" | |
| 273 "psubw _MMX_0080w, %%mm1\n" | |
| 274 "movq %%mm0, %%mm2\n" // Cb 0 u3 0 u2 0 u1 0 u0 | |
| 275 "movq %%mm1, %%mm3\n" // Cr | |
| 276 "pmullw _MMX_Ugrn565, %%mm2\n" // Cb2green 0 R3 0 R2 0 R1 0 R0 | |
| 277 "movq (%2), %%mm6\n" // L1 l7 L6 L5 L4 L3 L2 L1 L0 | |
| 278 "pmullw _MMX_Ublu5x5, %%mm0\n" // Cb2blue | |
| 279 "pand _MMX_00FFw, %%mm6\n" // L1 00 L6 00 L4 00 L2 00 L0 | |
| 280 "pmullw _MMX_Vgrn565, %%mm3\n" // Cr2green | |
| 281 "movq (%2), %%mm7\n" // L2 | |
| 282 "pmullw _MMX_Vred5x5, %%mm1\n" // Cr2red | |
| 283 "psrlw $8, %%mm7\n" // L2 00 L7 00 L5 00 L3 00 L1 | |
| 284 "pmullw _MMX_Ycoeff, %%mm6\n" // lum1 | |
| 285 "paddw %%mm3, %%mm2\n" // Cb2green + Cr2green == green | |
| 286 "pmullw _MMX_Ycoeff, %%mm7\n" // lum2 | |
| 287 | |
| 288 "movq %%mm6, %%mm4\n" // lum1 | |
| 289 "paddw %%mm0, %%mm6\n" // lum1 +blue 00 B6 00 B4 00 B2 00 B0 | |
| 290 "movq %%mm4, %%mm5\n" // lum1 | |
| 291 "paddw %%mm1, %%mm4\n" // lum1 +red 00 R6 00 R4 00 R2 00 R0 | |
| 292 "paddw %%mm2, %%mm5\n" // lum1 +green 00 G6 00 G4 00 G2 00 G0 | |
| 293 "psraw $6, %%mm4\n" // R1 0 .. 64 | |
| 294 "movq %%mm7, %%mm3\n" // lum2 00 L7 00 L5 00 L3 00 L1 | |
| 295 "psraw $6, %%mm5\n" // G1 - .. + | |
| 296 "paddw %%mm0, %%mm7\n" // Lum2 +blue 00 B7 00 B5 00 B3 00 B1 | |
| 297 "psraw $6, %%mm6\n" // B1 0 .. 64 | |
| 298 "packuswb %%mm4, %%mm4\n" // R1 R1 | |
| 299 "packuswb %%mm5, %%mm5\n" // G1 G1 | |
| 300 "packuswb %%mm6, %%mm6\n" // B1 B1 | |
| 301 "punpcklbw %%mm4, %%mm4\n" | |
| 302 "punpcklbw %%mm5, %%mm5\n" | |
| 303 | |
| 304 "pand _MMX_red565, %%mm4\n" | |
| 305 "psllw $3, %%mm5\n" // GREEN 1 | |
| 306 "punpcklbw %%mm6, %%mm6\n" | |
| 307 "pand _MMX_grn565, %%mm5\n" | |
| 308 "pand _MMX_red565, %%mm6\n" | |
| 309 "por %%mm5, %%mm4\n" // | |
| 310 "psrlw $11, %%mm6\n" // BLUE 1 | |
| 311 "movq %%mm3, %%mm5\n" // lum2 | |
| 312 "paddw %%mm1, %%mm3\n" // lum2 +red 00 R7 00 R5 00 R3 00 R1 | |
| 313 "paddw %%mm2, %%mm5\n" // lum2 +green 00 G7 00 G5 00 G3 00 G1 | |
| 314 "psraw $6, %%mm3\n" // R2 | |
| 315 "por %%mm6, %%mm4\n" // MM4 | |
| 316 "psraw $6, %%mm5\n" // G2 | |
| 317 "movq (%2, %4), %%mm6\n" // L3 load lum2 | |
| 318 "psraw $6, %%mm7\n" | |
| 319 "packuswb %%mm3, %%mm3\n" | |
| 320 "packuswb %%mm5, %%mm5\n" | |
| 321 "packuswb %%mm7, %%mm7\n" | |
| 322 "pand _MMX_00FFw, %%mm6\n" // L3 | |
| 323 "punpcklbw %%mm3, %%mm3\n" | |
| 324 "punpcklbw %%mm5, %%mm5\n" | |
| 325 "pmullw _MMX_Ycoeff, %%mm6\n" // lum3 | |
| 326 "punpcklbw %%mm7, %%mm7\n" | |
| 327 "psllw $3, %%mm5\n" // GREEN 2 | |
| 328 "pand _MMX_red565, %%mm7\n" | |
| 329 "pand _MMX_red565, %%mm3\n" | |
| 330 "psrlw $11, %%mm7\n" // BLUE 2 | |
| 331 "pand _MMX_grn565, %%mm5\n" | |
| 332 "por %%mm7, %%mm3\n" | |
| 333 "movq (%2,%4), %%mm7\n" // L4 load lum2 | |
| 334 "por %%mm5, %%mm3\n" // | |
| 335 "psrlw $8, %%mm7\n" // L4 | |
| 336 "movq %%mm4, %%mm5\n" | |
| 337 "punpcklwd %%mm3, %%mm4\n" | |
| 338 "pmullw _MMX_Ycoeff, %%mm7\n" // lum4 | |
| 339 "punpckhwd %%mm3, %%mm5\n" | |
| 340 | |
| 341 "movq %%mm4, (%3)\n" // write row1 | |
| 342 "movq %%mm5, 8(%3)\n" // write row1 | |
| 343 | |
| 344 "movq %%mm6, %%mm4\n" // Lum3 | |
| 345 "paddw %%mm0, %%mm6\n" // Lum3 +blue | |
| 346 | |
| 347 "movq %%mm4, %%mm5\n" // Lum3 | |
| 348 "paddw %%mm1, %%mm4\n" // Lum3 +red | |
| 349 "paddw %%mm2, %%mm5\n" // Lum3 +green | |
| 350 "psraw $6, %%mm4\n" | |
| 351 "movq %%mm7, %%mm3\n" // Lum4 | |
| 352 "psraw $6, %%mm5\n" | |
| 353 "paddw %%mm0, %%mm7\n" // Lum4 +blue | |
| 354 "psraw $6, %%mm6\n" // Lum3 +blue | |
| 355 "movq %%mm3, %%mm0\n" // Lum4 | |
| 356 "packuswb %%mm4, %%mm4\n" | |
| 357 "paddw %%mm1, %%mm3\n" // Lum4 +red | |
| 358 "packuswb %%mm5, %%mm5\n" | |
| 359 "paddw %%mm2, %%mm0\n" // Lum4 +green | |
| 360 "packuswb %%mm6, %%mm6\n" | |
| 361 "punpcklbw %%mm4, %%mm4\n" | |
| 362 "punpcklbw %%mm5, %%mm5\n" | |
| 363 "punpcklbw %%mm6, %%mm6\n" | |
| 364 "psllw $3, %%mm5\n" // GREEN 3 | |
| 365 "pand _MMX_red565, %%mm4\n" | |
| 366 "psraw $6, %%mm3\n" // psr 6 | |
| 367 "psraw $6, %%mm0\n" | |
| 368 "pand _MMX_red565, %%mm6\n" // BLUE | |
| 369 "pand _MMX_grn565, %%mm5\n" | |
| 370 "psrlw $11, %%mm6\n" // BLUE 3 | |
| 371 "por %%mm5, %%mm4\n" | |
| 372 "psraw $6, %%mm7\n" | |
| 373 "por %%mm6, %%mm4\n" | |
| 374 "packuswb %%mm3, %%mm3\n" | |
| 375 "packuswb %%mm0, %%mm0\n" | |
| 376 "packuswb %%mm7, %%mm7\n" | |
| 377 "punpcklbw %%mm3, %%mm3\n" | |
| 378 "punpcklbw %%mm0, %%mm0\n" | |
| 379 "punpcklbw %%mm7, %%mm7\n" | |
| 380 "pand _MMX_red565, %%mm3\n" | |
| 381 "pand _MMX_red565, %%mm7\n" // BLUE | |
| 382 "psllw $3, %%mm0\n" // GREEN 4 | |
| 383 "psrlw $11, %%mm7\n" | |
| 384 "pand _MMX_grn565, %%mm0\n" | |
| 385 "por %%mm7, %%mm3\n" | |
| 386 "por %%mm0, %%mm3\n" | |
| 387 | |
| 388 "movq %%mm4, %%mm5\n" | |
| 389 | |
| 390 "punpcklwd %%mm3, %%mm4\n" | |
| 391 "punpckhwd %%mm3, %%mm5\n" | |
| 392 | |
| 393 "movq %%mm4, (%5)\n" | |
| 394 "movq %%mm5, 8(%5)\n" | |
| 395 | |
| 396 "addl $8, %6\n" | |
| 397 "addl $8, %2\n" | |
| 398 "addl $4, %%ebx\n" | |
| 399 "addl $4, %1\n" | |
| 400 "cmpl %4, %6\n" | |
| 401 "leal 16(%3), %3\n" | |
| 402 "leal 16(%5),%5\n" // row2+16 | |
| 403 | |
| 404 | |
| 405 "jl 1b\n" | |
| 406 "addl %4, %2\n" // lum += cols | |
| 407 "addl %8, %3\n" // row1+= mod | |
| 408 "addl %8, %5\n" // row2+= mod | |
| 409 "movl $0, %6\n" // x=0 | |
| 410 "cmpl %7, %2\n" | |
| 411 "jl 1b\n" | |
| 412 "emms\n" | |
| 413 "popl %%ebx\n" | |
| 414 : | |
| 415 :"m" (cr), "r"(cb),"r"(lum), | |
| 416 "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod) | |
| 417 : "%ebx" | |
| 418 ); | |
| 419 } | |
| 420 | |
| 421 #endif /* GCC i386 inline assembly */ |