Mercurial > sdl-ios-xcode
annotate src/video/SDL_yuv_mmx.c @ 4045:f420bba13676 SDL-1.2
GCC inline asm for MMX YUV processing no longer has textrels and now works when
gcc wants to hog %%ebx for the PIC register.
Fixes Bugzilla #418.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Wed, 11 Jul 2007 06:26:22 +0000 |
| parents | 40edc79b0926 |
| children | 3a9e60224efe |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 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 | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
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24 #if (__GNUC__ > 2) && defined(__i386__) && SDL_ASSEMBLY_ROUTINES |
| 0 | 25 |
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26 #include "SDL_stdinc.h" |
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27 |
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28 #include "mmx.h" |
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29 |
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30 static mmx_t MMX_0080w = { .ud = {0x00800080, 0x00800080} }; |
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31 static mmx_t MMX_00FFw = { .ud = {0x00ff00ff, 0x00ff00ff} }; |
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32 static mmx_t MMX_FF00w = { .ud = {0xff00ff00, 0xff00ff00} }; |
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33 |
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34 static mmx_t MMX_Ycoeff = { .uw = {0x004a, 0x004a, 0x004a, 0x004a} }; |
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35 |
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36 static mmx_t MMX_UbluRGB = { .uw = {0x0072, 0x0072, 0x0072, 0x0072} }; |
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37 static mmx_t MMX_VredRGB = { .uw = {0x0059, 0x0059, 0x0059, 0x0059} }; |
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38 static mmx_t MMX_UgrnRGB = { .uw = {0xffea, 0xffea, 0xffea, 0xffea} }; |
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39 static mmx_t MMX_VgrnRGB = { .uw = {0xffd2, 0xffd2, 0xffd2, 0xffd2} }; |
| 0 | 40 |
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41 static mmx_t MMX_Ublu5x5 = { .uw = {0x0081, 0x0081, 0x0081, 0x0081} }; |
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42 static mmx_t MMX_Vred5x5 = { .uw = {0x0066, 0x0066, 0x0066, 0x0066} }; |
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43 static mmx_t MMX_Ugrn555 = { .uw = {0xffe7, 0xffe7, 0xffe7, 0xffe7} }; |
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44 static mmx_t MMX_Vgrn555 = { .uw = {0xffcc, 0xffcc, 0xffcc, 0xffcc} }; |
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45 static mmx_t MMX_Ugrn565 = { .uw = {0xffe8, 0xffe8, 0xffe8, 0xffe8} }; |
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46 static mmx_t MMX_Vgrn565 = { .uw = {0xffcd, 0xffcd, 0xffcd, 0xffcd} }; |
| 0 | 47 |
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48 static mmx_t MMX_red555 = { .uw = {0x7c00, 0x7c00, 0x7c00, 0x7c00} }; |
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49 static mmx_t MMX_red565 = { .uw = {0xf800, 0xf800, 0xf800, 0xf800} }; |
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50 static mmx_t MMX_grn555 = { .uw = {0x03e0, 0x03e0, 0x03e0, 0x03e0} }; |
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51 static mmx_t MMX_grn565 = { .uw = {0x07e0, 0x07e0, 0x07e0, 0x07e0} }; |
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52 static mmx_t MMX_blu5x5 = { .uw = {0x001f, 0x001f, 0x001f, 0x001f} }; |
| 0 | 53 |
| 54 /** | |
| 55 This MMX assembler is my first assembler/MMX program ever. | |
| 56 Thus it maybe buggy. | |
| 57 Send patches to: | |
| 58 mvogt@rhrk.uni-kl.de | |
| 59 | |
| 60 After it worked fine I have "obfuscated" the code a bit to have | |
| 61 more parallism in the MMX units. This means I moved | |
| 62 initilisation around and delayed other instruction. | |
| 63 Performance measurement did not show that this brought any advantage | |
| 64 but in theory it _should_ be faster this way. | |
| 65 | |
| 66 The overall performanve gain to the C based dither was 30%-40%. | |
| 67 The MMX routine calculates 256bit=8RGB values in each cycle | |
| 68 (4 for row1 & 4 for row2) | |
| 69 | |
| 70 The red/green/blue.. coefficents are taken from the mpeg_play | |
| 71 player. They look nice, but I dont know if you can have | |
| 72 better values, to avoid integer rounding errors. | |
| 73 | |
| 74 | |
| 75 IMPORTANT: | |
| 76 ========== | |
| 77 | |
| 78 It is a requirement that the cr/cb/lum are 8 byte aligned and | |
| 79 the out are 16byte aligned or you will/may get segfaults | |
| 80 | |
| 81 */ | |
| 82 | |
| 83 void ColorRGBDitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, | |
| 84 unsigned char *lum, unsigned char *cr, | |
| 85 unsigned char *cb, unsigned char *out, | |
| 86 int rows, int cols, int mod ) | |
| 87 { | |
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88 Uint32 *row1; |
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89 Uint32 *row2; |
| 0 | 90 |
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91 unsigned char* y = lum +cols*rows; // Pointer to the end |
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92 int x = 0; |
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93 row1 = (Uint32 *)out; // 32 bit target |
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94 row2 = (Uint32 *)out+cols+mod; // start of second row |
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95 mod = (mod+cols+mod)*4; // increment for row1 in byte |
| 0 | 96 |
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97 __asm__ __volatile__ ( |
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98 // tap dance to workaround the inability to use %%ebx at will... |
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99 // move one thing to the stack... |
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100 "pushl $0\n" // save a slot on the stack. |
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101 "pushl %%ebx\n" // save %%ebx. |
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102 "movl %0, %%ebx\n" // put the thing in ebx. |
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103 "movl %%ebx, 4(%%esp)\n" // put the thing in the stack slot. |
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104 "popl %%ebx\n" // get back %%ebx (the PIC register). |
| 0 | 105 |
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106 ".align 8\n" |
| 0 | 107 "1:\n" |
| 108 | |
| 109 // create Cr (result in mm1) | |
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110 "pushl %%ebx\n" |
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111 "movl 4(%%esp), %%ebx\n" |
| 0 | 112 "movd (%%ebx), %%mm1\n" // 0 0 0 0 v3 v2 v1 v0 |
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113 "popl %%ebx\n" |
| 0 | 114 "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 |
| 115 "movd (%2), %%mm2\n" // 0 0 0 0 l3 l2 l1 l0 | |
| 116 "punpcklbw %%mm7,%%mm1\n" // 0 v3 0 v2 00 v1 00 v0 | |
| 117 "punpckldq %%mm1,%%mm1\n" // 00 v1 00 v0 00 v1 00 v0 | |
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118 "psubw %9,%%mm1\n" // mm1-128:r1 r1 r0 r0 r1 r1 r0 r0 |
| 0 | 119 |
| 120 // create Cr_g (result in mm0) | |
| 121 "movq %%mm1,%%mm0\n" // r1 r1 r0 r0 r1 r1 r0 r0 | |
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122 "pmullw %10,%%mm0\n" // red*-46dec=0.7136*64 |
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123 "pmullw %11,%%mm1\n" // red*89dec=1.4013*64 |
| 0 | 124 "psraw $6, %%mm0\n" // red=red/64 |
| 125 "psraw $6, %%mm1\n" // red=red/64 | |
| 126 | |
| 127 // create L1 L2 (result in mm2,mm4) | |
| 128 // L2=lum+cols | |
| 129 "movq (%2,%4),%%mm3\n" // 0 0 0 0 L3 L2 L1 L0 | |
| 130 "punpckldq %%mm3,%%mm2\n" // L3 L2 L1 L0 l3 l2 l1 l0 | |
| 131 "movq %%mm2,%%mm4\n" // L3 L2 L1 L0 l3 l2 l1 l0 | |
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132 "pand %12,%%mm2\n" // L3 0 L1 0 l3 0 l1 0 |
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133 "pand %13,%%mm4\n" // 0 L2 0 L0 0 l2 0 l0 |
| 0 | 134 "psrlw $8,%%mm2\n" // 0 L3 0 L1 0 l3 0 l1 |
| 135 | |
| 136 // create R (result in mm6) | |
| 137 "movq %%mm2,%%mm5\n" // 0 L3 0 L1 0 l3 0 l1 | |
| 138 "movq %%mm4,%%mm6\n" // 0 L2 0 L0 0 l2 0 l0 | |
| 139 "paddsw %%mm1, %%mm5\n" // lum1+red:x R3 x R1 x r3 x r1 | |
| 140 "paddsw %%mm1, %%mm6\n" // lum1+red:x R2 x R0 x r2 x r0 | |
| 141 "packuswb %%mm5,%%mm5\n" // R3 R1 r3 r1 R3 R1 r3 r1 | |
| 142 "packuswb %%mm6,%%mm6\n" // R2 R0 r2 r0 R2 R0 r2 r0 | |
| 143 "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 | |
| 144 "punpcklbw %%mm5,%%mm6\n" // R3 R2 R1 R0 r3 r2 r1 r0 | |
| 145 | |
| 146 // create Cb (result in mm1) | |
| 147 "movd (%1), %%mm1\n" // 0 0 0 0 u3 u2 u1 u0 | |
| 148 "punpcklbw %%mm7,%%mm1\n" // 0 u3 0 u2 00 u1 00 u0 | |
| 149 "punpckldq %%mm1,%%mm1\n" // 00 u1 00 u0 00 u1 00 u0 | |
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150 "psubw %9,%%mm1\n" // mm1-128:u1 u1 u0 u0 u1 u1 u0 u0 |
| 0 | 151 // create Cb_g (result in mm5) |
| 152 "movq %%mm1,%%mm5\n" // u1 u1 u0 u0 u1 u1 u0 u0 | |
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153 "pmullw %14,%%mm5\n" // blue*-109dec=1.7129*64 |
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154 "pmullw %15,%%mm1\n" // blue*114dec=1.78125*64 |
| 0 | 155 "psraw $6, %%mm5\n" // blue=red/64 |
| 156 "psraw $6, %%mm1\n" // blue=blue/64 | |
| 157 | |
| 158 // create G (result in mm7) | |
| 159 "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 | |
| 160 "movq %%mm4,%%mm7\n" // 0 L2 0 L0 0 l2 0 l1 | |
| 161 "paddsw %%mm5, %%mm3\n" // lum1+Cb_g:x G3t x G1t x g3t x g1t | |
| 162 "paddsw %%mm5, %%mm7\n" // lum1+Cb_g:x G2t x G0t x g2t x g0t | |
| 163 "paddsw %%mm0, %%mm3\n" // lum1+Cr_g:x G3 x G1 x g3 x g1 | |
| 164 "paddsw %%mm0, %%mm7\n" // lum1+blue:x G2 x G0 x g2 x g0 | |
| 165 "packuswb %%mm3,%%mm3\n" // G3 G1 g3 g1 G3 G1 g3 g1 | |
| 166 "packuswb %%mm7,%%mm7\n" // G2 G0 g2 g0 G2 G0 g2 g0 | |
| 167 "punpcklbw %%mm3,%%mm7\n" // G3 G2 G1 G0 g3 g2 g1 g0 | |
| 168 | |
| 169 // create B (result in mm5) | |
| 170 "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 | |
| 171 "movq %%mm4,%%mm5\n" // 0 L2 0 L0 0 l2 0 l1 | |
| 172 "paddsw %%mm1, %%mm3\n" // lum1+blue:x B3 x B1 x b3 x b1 | |
| 173 "paddsw %%mm1, %%mm5\n" // lum1+blue:x B2 x B0 x b2 x b0 | |
| 174 "packuswb %%mm3,%%mm3\n" // B3 B1 b3 b1 B3 B1 b3 b1 | |
| 175 "packuswb %%mm5,%%mm5\n" // B2 B0 b2 b0 B2 B0 b2 b0 | |
| 176 "punpcklbw %%mm3,%%mm5\n" // B3 B2 B1 B0 b3 b2 b1 b0 | |
| 177 | |
| 178 // fill destination row1 (needed are mm6=Rr,mm7=Gg,mm5=Bb) | |
| 179 | |
| 180 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 181 "pxor %%mm4,%%mm4\n" // 0 0 0 0 0 0 0 0 | |
| 182 "movq %%mm6,%%mm1\n" // R3 R2 R1 R0 r3 r2 r1 r0 | |
| 183 "movq %%mm5,%%mm3\n" // B3 B2 B1 B0 b3 b2 b1 b0 | |
| 184 // process lower lum | |
| 185 "punpcklbw %%mm4,%%mm1\n" // 0 r3 0 r2 0 r1 0 r0 | |
| 186 "punpcklbw %%mm4,%%mm3\n" // 0 b3 0 b2 0 b1 0 b0 | |
| 187 "movq %%mm1,%%mm2\n" // 0 r3 0 r2 0 r1 0 r0 | |
| 188 "movq %%mm3,%%mm0\n" // 0 b3 0 b2 0 b1 0 b0 | |
| 189 "punpcklwd %%mm1,%%mm3\n" // 0 r1 0 b1 0 r0 0 b0 | |
| 190 "punpckhwd %%mm2,%%mm0\n" // 0 r3 0 b3 0 r2 0 b2 | |
| 191 | |
| 192 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 193 "movq %%mm7,%%mm1\n" // G3 G2 G1 G0 g3 g2 g1 g0 | |
| 194 "punpcklbw %%mm1,%%mm2\n" // g3 0 g2 0 g1 0 g0 0 | |
| 195 "punpcklwd %%mm4,%%mm2\n" // 0 0 g1 0 0 0 g0 0 | |
| 196 "por %%mm3, %%mm2\n" // 0 r1 g1 b1 0 r0 g0 b0 | |
| 197 "movq %%mm2,(%3)\n" // wrote out ! row1 | |
| 198 | |
| 199 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 200 "punpcklbw %%mm1,%%mm4\n" // g3 0 g2 0 g1 0 g0 0 | |
| 201 "punpckhwd %%mm2,%%mm4\n" // 0 0 g3 0 0 0 g2 0 | |
| 202 "por %%mm0, %%mm4\n" // 0 r3 g3 b3 0 r2 g2 b2 | |
| 203 "movq %%mm4,8(%3)\n" // wrote out ! row1 | |
| 204 | |
| 205 // fill destination row2 (needed are mm6=Rr,mm7=Gg,mm5=Bb) | |
| 206 // this can be done "destructive" | |
| 207 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 208 "punpckhbw %%mm2,%%mm6\n" // 0 R3 0 R2 0 R1 0 R0 | |
| 209 "punpckhbw %%mm1,%%mm5\n" // G3 B3 G2 B2 G1 B1 G0 B0 | |
| 210 "movq %%mm5,%%mm1\n" // G3 B3 G2 B2 G1 B1 G0 B0 | |
| 211 "punpcklwd %%mm6,%%mm1\n" // 0 R1 G1 B1 0 R0 G0 B0 | |
| 212 "movq %%mm1,(%5)\n" // wrote out ! row2 | |
| 213 "punpckhwd %%mm6,%%mm5\n" // 0 R3 G3 B3 0 R2 G2 B2 | |
| 214 "movq %%mm5,8(%5)\n" // wrote out ! row2 | |
| 215 | |
| 216 "addl $4,%2\n" // lum+4 | |
| 217 "leal 16(%3),%3\n" // row1+16 | |
| 218 "leal 16(%5),%5\n" // row2+16 | |
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219 "addl $2, (%%esp)\n" // cr+2 |
| 0 | 220 "addl $2, %1\n" // cb+2 |
| 221 | |
| 222 "addl $4,%6\n" // x+4 | |
| 223 "cmpl %4,%6\n" | |
| 224 | |
| 225 "jl 1b\n" | |
| 226 "addl %4, %2\n" // lum += cols | |
| 227 "addl %8, %3\n" // row1+= mod | |
| 228 "addl %8, %5\n" // row2+= mod | |
| 229 "movl $0, %6\n" // x=0 | |
| 230 "cmpl %7, %2\n" | |
| 231 "jl 1b\n" | |
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232 |
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233 "addl $4, %%esp\n" // get rid of the stack slot we reserved. |
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234 "emms\n" // reset MMX registers. |
| 0 | 235 : |
| 236 : "m" (cr), "r"(cb),"r"(lum), | |
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237 "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod), |
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238 "m"(MMX_0080w),"m"(MMX_VgrnRGB),"m"(MMX_VredRGB), |
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239 "m"(MMX_FF00w),"m"(MMX_00FFw),"m"(MMX_UgrnRGB), |
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240 "m"(MMX_UbluRGB) |
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241 ); |
| 0 | 242 } |
| 243 | |
| 244 void Color565DitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, | |
| 245 unsigned char *lum, unsigned char *cr, | |
| 246 unsigned char *cb, unsigned char *out, | |
| 247 int rows, int cols, int mod ) | |
| 248 { | |
| 249 Uint16 *row1; | |
| 250 Uint16 *row2; | |
| 251 | |
| 252 unsigned char* y = lum +cols*rows; /* Pointer to the end */ | |
| 253 int x=0; | |
| 254 row1 = (Uint16 *)out; /* 16 bit target */ | |
| 255 row2 = (Uint16 *)out+cols+mod; /* start of second row */ | |
| 256 mod = (mod+cols+mod)*2; /* increment for row1 in byte */ | |
| 257 | |
| 258 | |
| 259 __asm__ __volatile__( | |
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260 // tap dance to workaround the inability to use %%ebx at will... |
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261 // move one thing to the stack... |
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262 "pushl $0\n" // save a slot on the stack. |
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263 "pushl %%ebx\n" // save %%ebx. |
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264 "movl %0, %%ebx\n" // put the thing in ebx. |
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265 "movl %%ebx, 4(%%esp)\n" // put the thing in the stack slot. |
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266 "popl %%ebx\n" // get back %%ebx (the PIC register). |
| 0 | 267 |
| 268 ".align 8\n" | |
| 269 "1:\n" | |
| 270 "movd (%1), %%mm0\n" // 4 Cb 0 0 0 0 u3 u2 u1 u0 | |
| 271 "pxor %%mm7, %%mm7\n" | |
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272 "pushl %%ebx\n" |
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273 "movl 4(%%esp), %%ebx\n" |
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274 "movd (%%ebx), %%mm1\n" // 4 Cr 0 0 0 0 v3 v2 v1 v0 |
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275 "popl %%ebx\n" |
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276 |
| 0 | 277 "punpcklbw %%mm7, %%mm0\n" // 4 W cb 0 u3 0 u2 0 u1 0 u0 |
| 278 "punpcklbw %%mm7, %%mm1\n" // 4 W cr 0 v3 0 v2 0 v1 0 v0 | |
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279 "psubw %9, %%mm0\n" |
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280 "psubw %9, %%mm1\n" |
| 0 | 281 "movq %%mm0, %%mm2\n" // Cb 0 u3 0 u2 0 u1 0 u0 |
| 282 "movq %%mm1, %%mm3\n" // Cr | |
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283 "pmullw %10, %%mm2\n" // Cb2green 0 R3 0 R2 0 R1 0 R0 |
| 0 | 284 "movq (%2), %%mm6\n" // L1 l7 L6 L5 L4 L3 L2 L1 L0 |
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285 "pmullw %11, %%mm0\n" // Cb2blue |
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286 "pand %12, %%mm6\n" // L1 00 L6 00 L4 00 L2 00 L0 |
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287 "pmullw %13, %%mm3\n" // Cr2green |
| 0 | 288 "movq (%2), %%mm7\n" // L2 |
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289 "pmullw %14, %%mm1\n" // Cr2red |
| 0 | 290 "psrlw $8, %%mm7\n" // L2 00 L7 00 L5 00 L3 00 L1 |
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291 "pmullw %15, %%mm6\n" // lum1 |
| 0 | 292 "paddw %%mm3, %%mm2\n" // Cb2green + Cr2green == green |
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293 "pmullw %15, %%mm7\n" // lum2 |
| 0 | 294 |
| 295 "movq %%mm6, %%mm4\n" // lum1 | |
| 296 "paddw %%mm0, %%mm6\n" // lum1 +blue 00 B6 00 B4 00 B2 00 B0 | |
| 297 "movq %%mm4, %%mm5\n" // lum1 | |
| 298 "paddw %%mm1, %%mm4\n" // lum1 +red 00 R6 00 R4 00 R2 00 R0 | |
| 299 "paddw %%mm2, %%mm5\n" // lum1 +green 00 G6 00 G4 00 G2 00 G0 | |
| 300 "psraw $6, %%mm4\n" // R1 0 .. 64 | |
| 301 "movq %%mm7, %%mm3\n" // lum2 00 L7 00 L5 00 L3 00 L1 | |
| 302 "psraw $6, %%mm5\n" // G1 - .. + | |
| 303 "paddw %%mm0, %%mm7\n" // Lum2 +blue 00 B7 00 B5 00 B3 00 B1 | |
| 304 "psraw $6, %%mm6\n" // B1 0 .. 64 | |
| 305 "packuswb %%mm4, %%mm4\n" // R1 R1 | |
| 306 "packuswb %%mm5, %%mm5\n" // G1 G1 | |
| 307 "packuswb %%mm6, %%mm6\n" // B1 B1 | |
| 308 "punpcklbw %%mm4, %%mm4\n" | |
| 309 "punpcklbw %%mm5, %%mm5\n" | |
| 310 | |
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311 "pand %16, %%mm4\n" |
| 0 | 312 "psllw $3, %%mm5\n" // GREEN 1 |
| 313 "punpcklbw %%mm6, %%mm6\n" | |
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314 "pand %17, %%mm5\n" |
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315 "pand %16, %%mm6\n" |
| 0 | 316 "por %%mm5, %%mm4\n" // |
| 317 "psrlw $11, %%mm6\n" // BLUE 1 | |
| 318 "movq %%mm3, %%mm5\n" // lum2 | |
| 319 "paddw %%mm1, %%mm3\n" // lum2 +red 00 R7 00 R5 00 R3 00 R1 | |
| 320 "paddw %%mm2, %%mm5\n" // lum2 +green 00 G7 00 G5 00 G3 00 G1 | |
| 321 "psraw $6, %%mm3\n" // R2 | |
| 322 "por %%mm6, %%mm4\n" // MM4 | |
| 323 "psraw $6, %%mm5\n" // G2 | |
| 324 "movq (%2, %4), %%mm6\n" // L3 load lum2 | |
| 325 "psraw $6, %%mm7\n" | |
| 326 "packuswb %%mm3, %%mm3\n" | |
| 327 "packuswb %%mm5, %%mm5\n" | |
| 328 "packuswb %%mm7, %%mm7\n" | |
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329 "pand %12, %%mm6\n" // L3 |
| 0 | 330 "punpcklbw %%mm3, %%mm3\n" |
| 331 "punpcklbw %%mm5, %%mm5\n" | |
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332 "pmullw %15, %%mm6\n" // lum3 |
| 0 | 333 "punpcklbw %%mm7, %%mm7\n" |
| 334 "psllw $3, %%mm5\n" // GREEN 2 | |
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335 "pand %16, %%mm7\n" |
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336 "pand %16, %%mm3\n" |
| 0 | 337 "psrlw $11, %%mm7\n" // BLUE 2 |
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338 "pand %17, %%mm5\n" |
| 0 | 339 "por %%mm7, %%mm3\n" |
| 340 "movq (%2,%4), %%mm7\n" // L4 load lum2 | |
| 341 "por %%mm5, %%mm3\n" // | |
| 342 "psrlw $8, %%mm7\n" // L4 | |
| 343 "movq %%mm4, %%mm5\n" | |
| 344 "punpcklwd %%mm3, %%mm4\n" | |
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345 "pmullw %15, %%mm7\n" // lum4 |
| 0 | 346 "punpckhwd %%mm3, %%mm5\n" |
| 347 | |
| 348 "movq %%mm4, (%3)\n" // write row1 | |
| 349 "movq %%mm5, 8(%3)\n" // write row1 | |
| 350 | |
| 351 "movq %%mm6, %%mm4\n" // Lum3 | |
| 352 "paddw %%mm0, %%mm6\n" // Lum3 +blue | |
| 353 | |
| 354 "movq %%mm4, %%mm5\n" // Lum3 | |
| 355 "paddw %%mm1, %%mm4\n" // Lum3 +red | |
| 356 "paddw %%mm2, %%mm5\n" // Lum3 +green | |
| 357 "psraw $6, %%mm4\n" | |
| 358 "movq %%mm7, %%mm3\n" // Lum4 | |
| 359 "psraw $6, %%mm5\n" | |
| 360 "paddw %%mm0, %%mm7\n" // Lum4 +blue | |
| 361 "psraw $6, %%mm6\n" // Lum3 +blue | |
| 362 "movq %%mm3, %%mm0\n" // Lum4 | |
| 363 "packuswb %%mm4, %%mm4\n" | |
| 364 "paddw %%mm1, %%mm3\n" // Lum4 +red | |
| 365 "packuswb %%mm5, %%mm5\n" | |
| 366 "paddw %%mm2, %%mm0\n" // Lum4 +green | |
| 367 "packuswb %%mm6, %%mm6\n" | |
| 368 "punpcklbw %%mm4, %%mm4\n" | |
| 369 "punpcklbw %%mm5, %%mm5\n" | |
| 370 "punpcklbw %%mm6, %%mm6\n" | |
| 371 "psllw $3, %%mm5\n" // GREEN 3 | |
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372 "pand %16, %%mm4\n" |
| 0 | 373 "psraw $6, %%mm3\n" // psr 6 |
| 374 "psraw $6, %%mm0\n" | |
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375 "pand %16, %%mm6\n" // BLUE |
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376 "pand %17, %%mm5\n" |
| 0 | 377 "psrlw $11, %%mm6\n" // BLUE 3 |
| 378 "por %%mm5, %%mm4\n" | |
| 379 "psraw $6, %%mm7\n" | |
| 380 "por %%mm6, %%mm4\n" | |
| 381 "packuswb %%mm3, %%mm3\n" | |
| 382 "packuswb %%mm0, %%mm0\n" | |
| 383 "packuswb %%mm7, %%mm7\n" | |
| 384 "punpcklbw %%mm3, %%mm3\n" | |
| 385 "punpcklbw %%mm0, %%mm0\n" | |
| 386 "punpcklbw %%mm7, %%mm7\n" | |
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387 "pand %16, %%mm3\n" |
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388 "pand %16, %%mm7\n" // BLUE |
| 0 | 389 "psllw $3, %%mm0\n" // GREEN 4 |
| 390 "psrlw $11, %%mm7\n" | |
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391 "pand %17, %%mm0\n" |
| 0 | 392 "por %%mm7, %%mm3\n" |
| 393 "por %%mm0, %%mm3\n" | |
| 394 | |
| 395 "movq %%mm4, %%mm5\n" | |
| 396 | |
| 397 "punpcklwd %%mm3, %%mm4\n" | |
| 398 "punpckhwd %%mm3, %%mm5\n" | |
| 399 | |
| 400 "movq %%mm4, (%5)\n" | |
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401 "movq %%mm5, 8(%5)\n" |
| 0 | 402 |
| 403 "addl $8, %6\n" | |
| 404 "addl $8, %2\n" | |
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405 "addl $4, (%%esp)\n" |
| 0 | 406 "addl $4, %1\n" |
| 407 "cmpl %4, %6\n" | |
| 408 "leal 16(%3), %3\n" | |
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409 "leal 16(%5),%5\n" // row2+16 |
| 0 | 410 |
| 411 | |
| 412 "jl 1b\n" | |
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413 "addl %4, %2\n" // lum += cols |
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414 "addl %8, %3\n" // row1+= mod |
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415 "addl %8, %5\n" // row2+= mod |
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416 "movl $0, %6\n" // x=0 |
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417 "cmpl %7, %2\n" |
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418 "jl 1b\n" |
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419 "addl $4, %%esp\n" // get rid of the stack slot we reserved. |
| 0 | 420 "emms\n" |
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Ugly hack to make this work with gcc 2.x and 3.x
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421 : |
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422 : "m" (cr), "r"(cb),"r"(lum), |
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423 "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod), |
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424 "m"(MMX_0080w),"m"(MMX_Ugrn565),"m"(MMX_Ublu5x5), |
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425 "m"(MMX_00FFw),"m"(MMX_Vgrn565),"m"(MMX_Vred5x5), |
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426 "m"(MMX_Ycoeff),"m"(MMX_red565),"m"(MMX_grn565)); |
| 0 | 427 } |
| 428 | |
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429 #endif /* GCC3 i386 inline assembly */ |
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430 |