Mercurial > sdl-ios-xcode
annotate src/video/SDL_yuv_mmx.c @ 1023:e719ee25439d
Fix potential use of freed memory in the threaded timer system
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 04 Jan 2005 19:05:32 +0000 |
| parents | e0d96eb0af19 |
| children | 29d7db09776e |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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Updated copyright information for 2004 (Happy New Year!)
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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 | |
|
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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 | |
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33 static unsigned int MMX_0080w[] = {0x00800080, 0x00800080}; |
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34 static unsigned int MMX_00FFw[] = {0x00ff00ff, 0x00ff00ff}; |
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35 static unsigned int MMX_FF00w[] = {0xff00ff00, 0xff00ff00}; |
| 0 | 36 |
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37 static unsigned short MMX_Ycoeff[] = {0x004a, 0x004a, 0x004a, 0x004a}; |
| 0 | 38 |
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39 static unsigned short MMX_UbluRGB[] = {0x0072, 0x0072, 0x0072, 0x0072}; |
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40 static unsigned short MMX_VredRGB[] = {0x0059, 0x0059, 0x0059, 0x0059}; |
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41 static unsigned short MMX_UgrnRGB[] = {0xffea, 0xffea, 0xffea, 0xffea}; |
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42 static unsigned short MMX_VgrnRGB[] = {0xffd2, 0xffd2, 0xffd2, 0xffd2}; |
| 0 | 43 |
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44 static unsigned short MMX_Ublu5x5[] = {0x0081, 0x0081, 0x0081, 0x0081}; |
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45 static unsigned short MMX_Vred5x5[] = {0x0066, 0x0066, 0x0066, 0x0066}; |
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46 static unsigned short MMX_Ugrn555[] = {0xffe7, 0xffe7, 0xffe7, 0xffe7}; |
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47 static unsigned short MMX_Vgrn555[] = {0xffcc, 0xffcc, 0xffcc, 0xffcc}; |
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48 static unsigned short MMX_Ugrn565[] = {0xffe8, 0xffe8, 0xffe8, 0xffe8}; |
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49 static unsigned short MMX_Vgrn565[] = {0xffcd, 0xffcd, 0xffcd, 0xffcd}; |
| 0 | 50 |
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51 static unsigned short MMX_red555[] = {0x7c00, 0x7c00, 0x7c00, 0x7c00}; |
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52 static unsigned short MMX_red565[] = {0xf800, 0xf800, 0xf800, 0xf800}; |
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53 static unsigned short MMX_grn555[] = {0x03e0, 0x03e0, 0x03e0, 0x03e0}; |
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54 static unsigned short MMX_grn565[] = {0x07e0, 0x07e0, 0x07e0, 0x07e0}; |
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55 static unsigned short MMX_blu5x5[] = {0x001f, 0x001f, 0x001f, 0x001f}; |
| 0 | 56 |
| 57 /** | |
| 58 This MMX assembler is my first assembler/MMX program ever. | |
| 59 Thus it maybe buggy. | |
| 60 Send patches to: | |
| 61 mvogt@rhrk.uni-kl.de | |
| 62 | |
| 63 After it worked fine I have "obfuscated" the code a bit to have | |
| 64 more parallism in the MMX units. This means I moved | |
| 65 initilisation around and delayed other instruction. | |
| 66 Performance measurement did not show that this brought any advantage | |
| 67 but in theory it _should_ be faster this way. | |
| 68 | |
| 69 The overall performanve gain to the C based dither was 30%-40%. | |
| 70 The MMX routine calculates 256bit=8RGB values in each cycle | |
| 71 (4 for row1 & 4 for row2) | |
| 72 | |
| 73 The red/green/blue.. coefficents are taken from the mpeg_play | |
| 74 player. They look nice, but I dont know if you can have | |
| 75 better values, to avoid integer rounding errors. | |
| 76 | |
| 77 | |
| 78 IMPORTANT: | |
| 79 ========== | |
| 80 | |
| 81 It is a requirement that the cr/cb/lum are 8 byte aligned and | |
| 82 the out are 16byte aligned or you will/may get segfaults | |
| 83 | |
| 84 */ | |
| 85 | |
| 86 void ColorRGBDitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, | |
| 87 unsigned char *lum, unsigned char *cr, | |
| 88 unsigned char *cb, unsigned char *out, | |
| 89 int rows, int cols, int mod ) | |
| 90 { | |
| 91 Uint32 *row1; | |
| 92 Uint32 *row2; | |
| 93 | |
| 94 unsigned char* y = lum +cols*rows; // Pointer to the end | |
| 95 int x=0; | |
| 96 row1 = (Uint32 *)out; // 32 bit target | |
| 97 row2 = (Uint32 *)out+cols+mod; // start of second row | |
| 98 mod = (mod+cols+mod)*4; // increment for row1 in byte | |
| 99 | |
| 100 __asm__ __volatile__ ( | |
| 101 /* We don't really care about PIC - the code should be rewritten to use | |
| 102 relative addressing for the static tables, so right now we take the | |
| 103 COW hit on the pages this code resides. Big deal. | |
| 104 This spill is just to reduce register pressure in the PIC case. */ | |
| 105 "pushl %%ebx\n" | |
| 106 "movl %0, %%ebx\n" | |
| 107 | |
| 108 ".align 8\n" | |
| 109 "1:\n" | |
| 110 | |
| 111 // create Cr (result in mm1) | |
| 112 "movd (%%ebx), %%mm1\n" // 0 0 0 0 v3 v2 v1 v0 | |
| 113 "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 | |
| 114 "movd (%2), %%mm2\n" // 0 0 0 0 l3 l2 l1 l0 | |
| 115 "punpcklbw %%mm7,%%mm1\n" // 0 v3 0 v2 00 v1 00 v0 | |
| 116 "punpckldq %%mm1,%%mm1\n" // 00 v1 00 v0 00 v1 00 v0 | |
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117 "psubw %[_MMX_0080w],%%mm1\n" // mm1-128:r1 r1 r0 r0 r1 r1 r0 r0 |
| 0 | 118 |
| 119 // create Cr_g (result in mm0) | |
| 120 "movq %%mm1,%%mm0\n" // r1 r1 r0 r0 r1 r1 r0 r0 | |
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121 "pmullw %[_MMX_VgrnRGB],%%mm0\n"// red*-46dec=0.7136*64 |
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122 "pmullw %[_MMX_VredRGB],%%mm1\n"// red*89dec=1.4013*64 |
| 0 | 123 "psraw $6, %%mm0\n" // red=red/64 |
| 124 "psraw $6, %%mm1\n" // red=red/64 | |
| 125 | |
| 126 // create L1 L2 (result in mm2,mm4) | |
| 127 // L2=lum+cols | |
| 128 "movq (%2,%4),%%mm3\n" // 0 0 0 0 L3 L2 L1 L0 | |
| 129 "punpckldq %%mm3,%%mm2\n" // L3 L2 L1 L0 l3 l2 l1 l0 | |
| 130 "movq %%mm2,%%mm4\n" // L3 L2 L1 L0 l3 l2 l1 l0 | |
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131 "pand %[_MMX_FF00w],%%mm2\n" // L3 0 L1 0 l3 0 l1 0 |
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132 "pand %[_MMX_00FFw],%%mm4\n" // 0 L2 0 L0 0 l2 0 l0 |
| 0 | 133 "psrlw $8,%%mm2\n" // 0 L3 0 L1 0 l3 0 l1 |
| 134 | |
| 135 // create R (result in mm6) | |
| 136 "movq %%mm2,%%mm5\n" // 0 L3 0 L1 0 l3 0 l1 | |
| 137 "movq %%mm4,%%mm6\n" // 0 L2 0 L0 0 l2 0 l0 | |
| 138 "paddsw %%mm1, %%mm5\n" // lum1+red:x R3 x R1 x r3 x r1 | |
| 139 "paddsw %%mm1, %%mm6\n" // lum1+red:x R2 x R0 x r2 x r0 | |
| 140 "packuswb %%mm5,%%mm5\n" // R3 R1 r3 r1 R3 R1 r3 r1 | |
| 141 "packuswb %%mm6,%%mm6\n" // R2 R0 r2 r0 R2 R0 r2 r0 | |
| 142 "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 | |
| 143 "punpcklbw %%mm5,%%mm6\n" // R3 R2 R1 R0 r3 r2 r1 r0 | |
| 144 | |
| 145 // create Cb (result in mm1) | |
| 146 "movd (%1), %%mm1\n" // 0 0 0 0 u3 u2 u1 u0 | |
| 147 "punpcklbw %%mm7,%%mm1\n" // 0 u3 0 u2 00 u1 00 u0 | |
| 148 "punpckldq %%mm1,%%mm1\n" // 00 u1 00 u0 00 u1 00 u0 | |
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149 "psubw %[_MMX_0080w],%%mm1\n" // mm1-128:u1 u1 u0 u0 u1 u1 u0 u0 |
| 0 | 150 // create Cb_g (result in mm5) |
| 151 "movq %%mm1,%%mm5\n" // u1 u1 u0 u0 u1 u1 u0 u0 | |
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152 "pmullw %[_MMX_UgrnRGB],%%mm5\n" // blue*-109dec=1.7129*64 |
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153 "pmullw %[_MMX_UbluRGB],%%mm1\n" // blue*114dec=1.78125*64 |
| 0 | 154 "psraw $6, %%mm5\n" // blue=red/64 |
| 155 "psraw $6, %%mm1\n" // blue=blue/64 | |
| 156 | |
| 157 // create G (result in mm7) | |
| 158 "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 | |
| 159 "movq %%mm4,%%mm7\n" // 0 L2 0 L0 0 l2 0 l1 | |
| 160 "paddsw %%mm5, %%mm3\n" // lum1+Cb_g:x G3t x G1t x g3t x g1t | |
| 161 "paddsw %%mm5, %%mm7\n" // lum1+Cb_g:x G2t x G0t x g2t x g0t | |
| 162 "paddsw %%mm0, %%mm3\n" // lum1+Cr_g:x G3 x G1 x g3 x g1 | |
| 163 "paddsw %%mm0, %%mm7\n" // lum1+blue:x G2 x G0 x g2 x g0 | |
| 164 "packuswb %%mm3,%%mm3\n" // G3 G1 g3 g1 G3 G1 g3 g1 | |
| 165 "packuswb %%mm7,%%mm7\n" // G2 G0 g2 g0 G2 G0 g2 g0 | |
| 166 "punpcklbw %%mm3,%%mm7\n" // G3 G2 G1 G0 g3 g2 g1 g0 | |
| 167 | |
| 168 // create B (result in mm5) | |
| 169 "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 | |
| 170 "movq %%mm4,%%mm5\n" // 0 L2 0 L0 0 l2 0 l1 | |
| 171 "paddsw %%mm1, %%mm3\n" // lum1+blue:x B3 x B1 x b3 x b1 | |
| 172 "paddsw %%mm1, %%mm5\n" // lum1+blue:x B2 x B0 x b2 x b0 | |
| 173 "packuswb %%mm3,%%mm3\n" // B3 B1 b3 b1 B3 B1 b3 b1 | |
| 174 "packuswb %%mm5,%%mm5\n" // B2 B0 b2 b0 B2 B0 b2 b0 | |
| 175 "punpcklbw %%mm3,%%mm5\n" // B3 B2 B1 B0 b3 b2 b1 b0 | |
| 176 | |
| 177 // fill destination row1 (needed are mm6=Rr,mm7=Gg,mm5=Bb) | |
| 178 | |
| 179 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 180 "pxor %%mm4,%%mm4\n" // 0 0 0 0 0 0 0 0 | |
| 181 "movq %%mm6,%%mm1\n" // R3 R2 R1 R0 r3 r2 r1 r0 | |
| 182 "movq %%mm5,%%mm3\n" // B3 B2 B1 B0 b3 b2 b1 b0 | |
| 183 // process lower lum | |
| 184 "punpcklbw %%mm4,%%mm1\n" // 0 r3 0 r2 0 r1 0 r0 | |
| 185 "punpcklbw %%mm4,%%mm3\n" // 0 b3 0 b2 0 b1 0 b0 | |
| 186 "movq %%mm1,%%mm2\n" // 0 r3 0 r2 0 r1 0 r0 | |
| 187 "movq %%mm3,%%mm0\n" // 0 b3 0 b2 0 b1 0 b0 | |
| 188 "punpcklwd %%mm1,%%mm3\n" // 0 r1 0 b1 0 r0 0 b0 | |
| 189 "punpckhwd %%mm2,%%mm0\n" // 0 r3 0 b3 0 r2 0 b2 | |
| 190 | |
| 191 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 192 "movq %%mm7,%%mm1\n" // G3 G2 G1 G0 g3 g2 g1 g0 | |
| 193 "punpcklbw %%mm1,%%mm2\n" // g3 0 g2 0 g1 0 g0 0 | |
| 194 "punpcklwd %%mm4,%%mm2\n" // 0 0 g1 0 0 0 g0 0 | |
| 195 "por %%mm3, %%mm2\n" // 0 r1 g1 b1 0 r0 g0 b0 | |
| 196 "movq %%mm2,(%3)\n" // wrote out ! row1 | |
| 197 | |
| 198 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 199 "punpcklbw %%mm1,%%mm4\n" // g3 0 g2 0 g1 0 g0 0 | |
| 200 "punpckhwd %%mm2,%%mm4\n" // 0 0 g3 0 0 0 g2 0 | |
| 201 "por %%mm0, %%mm4\n" // 0 r3 g3 b3 0 r2 g2 b2 | |
| 202 "movq %%mm4,8(%3)\n" // wrote out ! row1 | |
| 203 | |
| 204 // fill destination row2 (needed are mm6=Rr,mm7=Gg,mm5=Bb) | |
| 205 // this can be done "destructive" | |
| 206 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 207 "punpckhbw %%mm2,%%mm6\n" // 0 R3 0 R2 0 R1 0 R0 | |
| 208 "punpckhbw %%mm1,%%mm5\n" // G3 B3 G2 B2 G1 B1 G0 B0 | |
| 209 "movq %%mm5,%%mm1\n" // G3 B3 G2 B2 G1 B1 G0 B0 | |
| 210 "punpcklwd %%mm6,%%mm1\n" // 0 R1 G1 B1 0 R0 G0 B0 | |
| 211 "movq %%mm1,(%5)\n" // wrote out ! row2 | |
| 212 "punpckhwd %%mm6,%%mm5\n" // 0 R3 G3 B3 0 R2 G2 B2 | |
| 213 "movq %%mm5,8(%5)\n" // wrote out ! row2 | |
| 214 | |
| 215 "addl $4,%2\n" // lum+4 | |
| 216 "leal 16(%3),%3\n" // row1+16 | |
| 217 "leal 16(%5),%5\n" // row2+16 | |
| 218 "addl $2, %%ebx\n" // cr+2 | |
| 219 "addl $2, %1\n" // cb+2 | |
| 220 | |
| 221 "addl $4,%6\n" // x+4 | |
| 222 "cmpl %4,%6\n" | |
| 223 | |
| 224 "jl 1b\n" | |
| 225 "addl %4, %2\n" // lum += cols | |
| 226 "addl %8, %3\n" // row1+= mod | |
| 227 "addl %8, %5\n" // row2+= mod | |
| 228 "movl $0, %6\n" // x=0 | |
| 229 "cmpl %7, %2\n" | |
| 230 "jl 1b\n" | |
| 231 "emms\n" | |
| 232 "popl %%ebx\n" | |
| 233 : | |
| 234 : "m" (cr), "r"(cb),"r"(lum), | |
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235 "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod), |
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236 [_MMX_0080w] "m" (*MMX_0080w), |
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237 [_MMX_00FFw] "m" (*MMX_00FFw), |
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238 [_MMX_FF00w] "m" (*MMX_FF00w), |
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239 [_MMX_VgrnRGB] "m" (*MMX_VgrnRGB), |
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240 [_MMX_VredRGB] "m" (*MMX_VredRGB), |
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241 [_MMX_UgrnRGB] "m" (*MMX_UgrnRGB), |
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242 [_MMX_UbluRGB] "m" (*MMX_UbluRGB) |
| 0 | 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 | |
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272 "psubw %[_MMX_0080w], %%mm0\n" |
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273 "psubw %[_MMX_0080w], %%mm1\n" |
| 0 | 274 "movq %%mm0, %%mm2\n" // Cb 0 u3 0 u2 0 u1 0 u0 |
| 275 "movq %%mm1, %%mm3\n" // Cr | |
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276 "pmullw %[_MMX_Ugrn565], %%mm2\n" // Cb2green 0 R3 0 R2 0 R1 0 R0 |
| 0 | 277 "movq (%2), %%mm6\n" // L1 l7 L6 L5 L4 L3 L2 L1 L0 |
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278 "pmullw %[_MMX_Ublu5x5], %%mm0\n" // Cb2blue |
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279 "pand %[_MMX_00FFw], %%mm6\n" // L1 00 L6 00 L4 00 L2 00 L0 |
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280 "pmullw %[_MMX_Vgrn565], %%mm3\n" // Cr2green |
| 0 | 281 "movq (%2), %%mm7\n" // L2 |
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282 "pmullw %[_MMX_Vred5x5], %%mm1\n" // Cr2red |
| 0 | 283 "psrlw $8, %%mm7\n" // L2 00 L7 00 L5 00 L3 00 L1 |
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284 "pmullw %[_MMX_Ycoeff], %%mm6\n" // lum1 |
| 0 | 285 "paddw %%mm3, %%mm2\n" // Cb2green + Cr2green == green |
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286 "pmullw %[_MMX_Ycoeff], %%mm7\n" // lum2 |
| 0 | 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 | |
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304 "pand %[_MMX_red565], %%mm4\n" |
| 0 | 305 "psllw $3, %%mm5\n" // GREEN 1 |
| 306 "punpcklbw %%mm6, %%mm6\n" | |
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307 "pand %[_MMX_grn565], %%mm5\n" |
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308 "pand %[_MMX_red565], %%mm6\n" |
| 0 | 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" | |
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322 "pand %[_MMX_00FFw], %%mm6\n" // L3 |
| 0 | 323 "punpcklbw %%mm3, %%mm3\n" |
| 324 "punpcklbw %%mm5, %%mm5\n" | |
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325 "pmullw %[_MMX_Ycoeff], %%mm6\n" // lum3 |
| 0 | 326 "punpcklbw %%mm7, %%mm7\n" |
| 327 "psllw $3, %%mm5\n" // GREEN 2 | |
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328 "pand %[_MMX_red565], %%mm7\n" |
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329 "pand %[_MMX_red565], %%mm3\n" |
| 0 | 330 "psrlw $11, %%mm7\n" // BLUE 2 |
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331 "pand %[_MMX_grn565], %%mm5\n" |
| 0 | 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" | |
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338 "pmullw %[_MMX_Ycoeff], %%mm7\n" // lum4 |
| 0 | 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 | |
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365 "pand %[_MMX_red565], %%mm4\n" |
| 0 | 366 "psraw $6, %%mm3\n" // psr 6 |
| 367 "psraw $6, %%mm0\n" | |
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368 "pand %[_MMX_red565], %%mm6\n" // BLUE |
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369 "pand %[_MMX_grn565], %%mm5\n" |
| 0 | 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" | |
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380 "pand %[_MMX_red565], %%mm3\n" |
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381 "pand %[_MMX_red565], %%mm7\n" // BLUE |
| 0 | 382 "psllw $3, %%mm0\n" // GREEN 4 |
| 383 "psrlw $11, %%mm7\n" | |
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384 "pand %[_MMX_grn565], %%mm0\n" |
| 0 | 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" | |
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414 : |
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415 :"m" (cr), "r"(cb),"r"(lum), |
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416 "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod), |
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417 [_MMX_0080w] "m" (*MMX_0080w), |
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418 [_MMX_Ugrn565] "m" (*MMX_Ugrn565), |
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419 [_MMX_Ublu5x5] "m" (*MMX_Ublu5x5), |
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420 [_MMX_00FFw] "m" (*MMX_00FFw), |
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421 [_MMX_Vgrn565] "m" (*MMX_Vgrn565), |
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422 [_MMX_Vred5x5] "m" (*MMX_Vred5x5), |
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423 [_MMX_Ycoeff] "m" (*MMX_Ycoeff), |
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424 [_MMX_red565] "m" (*MMX_red565), |
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425 [_MMX_grn565] "m" (*MMX_grn565) |
| 0 | 426 ); |
| 427 } | |
| 428 | |
| 429 #endif /* GCC i386 inline assembly */ |