Mercurial > sdl-ios-xcode
annotate src/video/SDL_yuv_mmx.c @ 1684:c4aa1a2f48f1 SDL-1.3
Software YUV texture support in progress...
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 18 Jun 2006 06:35:41 +0000 |
| parents | 4da1ee79c9af |
| children |
| 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 0 /* FIXME: This code needs to be rewritten to reference the static data using relocatable addresses (e.g. http://www.gentoo.org/proj/en/hardened/pic-fix-guide.xml or http://nasm.sourceforge.net/doc/html/nasmdoc8.html#section-8.2) This code currently breaks on systems with readonly text segments (hardened Linux / Intel Mac) */ |
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25 #if defined(__GNUC__) && defined(__i386__) && SDL_ASSEMBLY_ROUTINES |
| 0 | 26 |
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27 #include "SDL_stdinc.h" |
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28 |
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29 #define ASM_ARRAY(x) x[] __asm__("_" #x) __attribute__((used)) |
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30 |
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31 static unsigned int ASM_ARRAY(MMX_0080w) = { |
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32 0x00800080, 0x00800080}; |
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33 static unsigned int ASM_ARRAY(MMX_00FFw) = { |
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34 0x00ff00ff, 0x00ff00ff}; |
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35 static unsigned int ASM_ARRAY(MMX_FF00w) = { |
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36 0xff00ff00, 0xff00ff00}; |
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37 |
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38 static unsigned short ASM_ARRAY(MMX_Ycoeff) = { |
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39 0x004a, 0x004a, 0x004a, 0x004a}; |
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40 |
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41 static unsigned short ASM_ARRAY(MMX_UbluRGB) = { |
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42 0x0072, 0x0072, 0x0072, 0x0072}; |
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43 static unsigned short ASM_ARRAY(MMX_VredRGB) = { |
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44 0x0059, 0x0059, 0x0059, 0x0059}; |
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45 static unsigned short ASM_ARRAY(MMX_UgrnRGB) = { |
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46 0xffea, 0xffea, 0xffea, 0xffea}; |
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47 static unsigned short ASM_ARRAY(MMX_VgrnRGB) = { |
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48 0xffd2, 0xffd2, 0xffd2, 0xffd2}; |
| 0 | 49 |
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50 static unsigned short ASM_ARRAY(MMX_Ublu5x5) = { |
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51 0x0081, 0x0081, 0x0081, 0x0081}; |
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52 static unsigned short ASM_ARRAY(MMX_Vred5x5) = { |
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53 0x0066, 0x0066, 0x0066, 0x0066}; |
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54 static unsigned short ASM_ARRAY(MMX_Ugrn555) = { |
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55 0xffe7, 0xffe7, 0xffe7, 0xffe7}; |
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56 static unsigned short ASM_ARRAY(MMX_Vgrn555) = { |
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57 0xffcc, 0xffcc, 0xffcc, 0xffcc}; |
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58 static unsigned short ASM_ARRAY(MMX_Ugrn565) = { |
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59 0xffe8, 0xffe8, 0xffe8, 0xffe8}; |
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60 static unsigned short ASM_ARRAY(MMX_Vgrn565) = { |
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61 0xffcd, 0xffcd, 0xffcd, 0xffcd}; |
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63 static unsigned short ASM_ARRAY(MMX_red555) = { |
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64 0x7c00, 0x7c00, 0x7c00, 0x7c00}; |
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65 static unsigned short ASM_ARRAY(MMX_red565) = { |
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66 0xf800, 0xf800, 0xf800, 0xf800}; |
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67 static unsigned short ASM_ARRAY(MMX_grn555) = { |
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68 0x03e0, 0x03e0, 0x03e0, 0x03e0}; |
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69 static unsigned short ASM_ARRAY(MMX_grn565) = { |
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70 0x07e0, 0x07e0, 0x07e0, 0x07e0}; |
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71 static unsigned short ASM_ARRAY(MMX_blu5x5) = { |
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72 0x001f, 0x001f, 0x001f, 0x001f}; |
| 0 | 73 |
| 74 /** | |
| 75 This MMX assembler is my first assembler/MMX program ever. | |
| 76 Thus it maybe buggy. | |
| 77 Send patches to: | |
| 78 mvogt@rhrk.uni-kl.de | |
| 79 | |
| 80 After it worked fine I have "obfuscated" the code a bit to have | |
| 81 more parallism in the MMX units. This means I moved | |
| 82 initilisation around and delayed other instruction. | |
| 83 Performance measurement did not show that this brought any advantage | |
| 84 but in theory it _should_ be faster this way. | |
| 85 | |
| 86 The overall performanve gain to the C based dither was 30%-40%. | |
| 87 The MMX routine calculates 256bit=8RGB values in each cycle | |
| 88 (4 for row1 & 4 for row2) | |
| 89 | |
| 90 The red/green/blue.. coefficents are taken from the mpeg_play | |
| 91 player. They look nice, but I dont know if you can have | |
| 92 better values, to avoid integer rounding errors. | |
| 93 | |
| 94 | |
| 95 IMPORTANT: | |
| 96 ========== | |
| 97 | |
| 98 It is a requirement that the cr/cb/lum are 8 byte aligned and | |
| 99 the out are 16byte aligned or you will/may get segfaults | |
| 100 | |
| 101 */ | |
| 102 | |
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103 void |
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104 ColorRGBDitherYV12MMX1X(int *colortab, Uint32 * rgb_2_pix, |
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105 unsigned char *lum, unsigned char *cr, |
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106 unsigned char *cb, unsigned char *out, |
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107 int rows, int cols, int mod) |
| 0 | 108 { |
| 109 Uint32 *row1; | |
| 110 Uint32 *row2; | |
| 111 | |
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112 unsigned char *y = lum + cols * rows; // Pointer to the end |
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113 int x = 0; |
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114 row1 = (Uint32 *) out; // 32 bit target |
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115 row2 = (Uint32 *) out + cols + mod; // start of second row |
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116 mod = (mod + cols + mod) * 4; // increment for row1 in byte |
| 0 | 117 |
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118 __asm__ __volatile__( |
| 0 | 119 /* We don't really care about PIC - the code should be rewritten to use |
| 120 relative addressing for the static tables, so right now we take the | |
| 121 COW hit on the pages this code resides. Big deal. | |
| 122 This spill is just to reduce register pressure in the PIC case. */ | |
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123 "pushl %%ebx\n" |
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124 "movl %0, %%ebx\n" ".align 8\n" "1:\n" |
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125 // create Cr (result in mm1) |
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126 "movd (%%ebx), %%mm1\n" // 0 0 0 0 v3 v2 v1 v0 |
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127 "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 |
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128 "movd (%2), %%mm2\n" // 0 0 0 0 l3 l2 l1 l0 |
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129 "punpcklbw %%mm7,%%mm1\n" // 0 v3 0 v2 00 v1 00 v0 |
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130 "punpckldq %%mm1,%%mm1\n" // 00 v1 00 v0 00 v1 00 v0 |
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131 "psubw _MMX_0080w,%%mm1\n" // mm1-128:r1 r1 r0 r0 r1 r1 r0 r0 |
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132 // create Cr_g (result in mm0) |
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133 "movq %%mm1,%%mm0\n" // r1 r1 r0 r0 r1 r1 r0 r0 |
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134 "pmullw _MMX_VgrnRGB,%%mm0\n" // red*-46dec=0.7136*64 |
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135 "pmullw _MMX_VredRGB,%%mm1\n" // red*89dec=1.4013*64 |
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136 "psraw $6, %%mm0\n" // red=red/64 |
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137 "psraw $6, %%mm1\n" // red=red/64 |
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138 // create L1 L2 (result in mm2,mm4) |
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139 // L2=lum+cols |
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140 "movq (%2,%4),%%mm3\n" // 0 0 0 0 L3 L2 L1 L0 |
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141 "punpckldq %%mm3,%%mm2\n" // L3 L2 L1 L0 l3 l2 l1 l0 |
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142 "movq %%mm2,%%mm4\n" // L3 L2 L1 L0 l3 l2 l1 l0 |
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143 "pand _MMX_FF00w,%%mm2\n" // L3 0 L1 0 l3 0 l1 0 |
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144 "pand _MMX_00FFw,%%mm4\n" // 0 L2 0 L0 0 l2 0 l0 |
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145 "psrlw $8,%%mm2\n" // 0 L3 0 L1 0 l3 0 l1 |
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146 // create R (result in mm6) |
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147 "movq %%mm2,%%mm5\n" // 0 L3 0 L1 0 l3 0 l1 |
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148 "movq %%mm4,%%mm6\n" // 0 L2 0 L0 0 l2 0 l0 |
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149 "paddsw %%mm1, %%mm5\n" // lum1+red:x R3 x R1 x r3 x r1 |
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150 "paddsw %%mm1, %%mm6\n" // lum1+red:x R2 x R0 x r2 x r0 |
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151 "packuswb %%mm5,%%mm5\n" // R3 R1 r3 r1 R3 R1 r3 r1 |
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152 "packuswb %%mm6,%%mm6\n" // R2 R0 r2 r0 R2 R0 r2 r0 |
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153 "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 |
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154 "punpcklbw %%mm5,%%mm6\n" // R3 R2 R1 R0 r3 r2 r1 r0 |
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155 // create Cb (result in mm1) |
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156 "movd (%1), %%mm1\n" // 0 0 0 0 u3 u2 u1 u0 |
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157 "punpcklbw %%mm7,%%mm1\n" // 0 u3 0 u2 00 u1 00 u0 |
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158 "punpckldq %%mm1,%%mm1\n" // 00 u1 00 u0 00 u1 00 u0 |
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159 "psubw _MMX_0080w,%%mm1\n" // mm1-128:u1 u1 u0 u0 u1 u1 u0 u0 |
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160 // create Cb_g (result in mm5) |
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161 "movq %%mm1,%%mm5\n" // u1 u1 u0 u0 u1 u1 u0 u0 |
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162 "pmullw _MMX_UgrnRGB,%%mm5\n" // blue*-109dec=1.7129*64 |
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163 "pmullw _MMX_UbluRGB,%%mm1\n" // blue*114dec=1.78125*64 |
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164 "psraw $6, %%mm5\n" // blue=red/64 |
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165 "psraw $6, %%mm1\n" // blue=blue/64 |
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166 // create G (result in mm7) |
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167 "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 |
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168 "movq %%mm4,%%mm7\n" // 0 L2 0 L0 0 l2 0 l1 |
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169 "paddsw %%mm5, %%mm3\n" // lum1+Cb_g:x G3t x G1t x g3t x g1t |
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170 "paddsw %%mm5, %%mm7\n" // lum1+Cb_g:x G2t x G0t x g2t x g0t |
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171 "paddsw %%mm0, %%mm3\n" // lum1+Cr_g:x G3 x G1 x g3 x g1 |
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172 "paddsw %%mm0, %%mm7\n" // lum1+blue:x G2 x G0 x g2 x g0 |
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173 "packuswb %%mm3,%%mm3\n" // G3 G1 g3 g1 G3 G1 g3 g1 |
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174 "packuswb %%mm7,%%mm7\n" // G2 G0 g2 g0 G2 G0 g2 g0 |
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175 "punpcklbw %%mm3,%%mm7\n" // G3 G2 G1 G0 g3 g2 g1 g0 |
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176 // create B (result in mm5) |
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177 "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 |
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178 "movq %%mm4,%%mm5\n" // 0 L2 0 L0 0 l2 0 l1 |
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179 "paddsw %%mm1, %%mm3\n" // lum1+blue:x B3 x B1 x b3 x b1 |
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180 "paddsw %%mm1, %%mm5\n" // lum1+blue:x B2 x B0 x b2 x b0 |
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181 "packuswb %%mm3,%%mm3\n" // B3 B1 b3 b1 B3 B1 b3 b1 |
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182 "packuswb %%mm5,%%mm5\n" // B2 B0 b2 b0 B2 B0 b2 b0 |
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183 "punpcklbw %%mm3,%%mm5\n" // B3 B2 B1 B0 b3 b2 b1 b0 |
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184 // fill destination row1 (needed are mm6=Rr,mm7=Gg,mm5=Bb) |
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185 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 |
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186 "pxor %%mm4,%%mm4\n" // 0 0 0 0 0 0 0 0 |
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187 "movq %%mm6,%%mm1\n" // R3 R2 R1 R0 r3 r2 r1 r0 |
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188 "movq %%mm5,%%mm3\n" // B3 B2 B1 B0 b3 b2 b1 b0 |
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189 // process lower lum |
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190 "punpcklbw %%mm4,%%mm1\n" // 0 r3 0 r2 0 r1 0 r0 |
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191 "punpcklbw %%mm4,%%mm3\n" // 0 b3 0 b2 0 b1 0 b0 |
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192 "movq %%mm1,%%mm2\n" // 0 r3 0 r2 0 r1 0 r0 |
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193 "movq %%mm3,%%mm0\n" // 0 b3 0 b2 0 b1 0 b0 |
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194 "punpcklwd %%mm1,%%mm3\n" // 0 r1 0 b1 0 r0 0 b0 |
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195 "punpckhwd %%mm2,%%mm0\n" // 0 r3 0 b3 0 r2 0 b2 |
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196 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 |
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197 "movq %%mm7,%%mm1\n" // G3 G2 G1 G0 g3 g2 g1 g0 |
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198 "punpcklbw %%mm1,%%mm2\n" // g3 0 g2 0 g1 0 g0 0 |
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199 "punpcklwd %%mm4,%%mm2\n" // 0 0 g1 0 0 0 g0 0 |
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200 "por %%mm3, %%mm2\n" // 0 r1 g1 b1 0 r0 g0 b0 |
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201 "movq %%mm2,(%3)\n" // wrote out ! row1 |
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202 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 |
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203 "punpcklbw %%mm1,%%mm4\n" // g3 0 g2 0 g1 0 g0 0 |
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204 "punpckhwd %%mm2,%%mm4\n" // 0 0 g3 0 0 0 g2 0 |
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205 "por %%mm0, %%mm4\n" // 0 r3 g3 b3 0 r2 g2 b2 |
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206 "movq %%mm4,8(%3)\n" // wrote out ! row1 |
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207 // fill destination row2 (needed are mm6=Rr,mm7=Gg,mm5=Bb) |
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208 // this can be done "destructive" |
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209 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 |
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210 "punpckhbw %%mm2,%%mm6\n" // 0 R3 0 R2 0 R1 0 R0 |
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211 "punpckhbw %%mm1,%%mm5\n" // G3 B3 G2 B2 G1 B1 G0 B0 |
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212 "movq %%mm5,%%mm1\n" // G3 B3 G2 B2 G1 B1 G0 B0 |
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213 "punpcklwd %%mm6,%%mm1\n" // 0 R1 G1 B1 0 R0 G0 B0 |
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214 "movq %%mm1,(%5)\n" // wrote out ! row2 |
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215 "punpckhwd %%mm6,%%mm5\n" // 0 R3 G3 B3 0 R2 G2 B2 |
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216 "movq %%mm5,8(%5)\n" // wrote out ! row2 |
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217 "addl $4,%2\n" // lum+4 |
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218 "leal 16(%3),%3\n" // row1+16 |
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219 "leal 16(%5),%5\n" // row2+16 |
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220 "addl $2, %%ebx\n" // cr+2 |
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221 "addl $2, %1\n" // cb+2 |
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222 "addl $4,%6\n" // x+4 |
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223 "cmpl %4,%6\n" "jl 1b\n" "addl %4, %2\n" // lum += cols |
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224 "addl %8, %3\n" // row1+= mod |
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225 "addl %8, %5\n" // row2+= mod |
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226 "movl $0, %6\n" // x=0 |
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227 "cmpl %7, %2\n" |
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228 "jl 1b\n" |
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229 "emms\n" |
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230 "popl %%ebx\n"::"m"(cr), "r"(cb), "r"(lum), |
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231 "r"(row1), "r"(cols), "r"(row2), "m"(x), |
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232 "m"(y), "m"(mod)); |
| 0 | 233 } |
| 234 | |
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235 void |
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236 Color565DitherYV12MMX1X(int *colortab, Uint32 * rgb_2_pix, |
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237 unsigned char *lum, unsigned char *cr, |
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238 unsigned char *cb, unsigned char *out, |
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239 int rows, int cols, int mod) |
| 0 | 240 { |
| 241 Uint16 *row1; | |
| 242 Uint16 *row2; | |
| 243 | |
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244 unsigned char *y = lum + cols * rows; /* Pointer to the end */ |
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245 int x = 0; |
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246 row1 = (Uint16 *) out; /* 16 bit target */ |
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247 row2 = (Uint16 *) out + cols + mod; /* start of second row */ |
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248 mod = (mod + cols + mod) * 2; /* increment for row1 in byte */ |
| 0 | 249 |
| 250 | |
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251 __asm__ __volatile__("pushl %%ebx\n" "movl %0, %%ebx\n" ".align 8\n" "1:\n" "movd (%1), %%mm0\n" // 4 Cb 0 0 0 0 u3 u2 u1 u0 |
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252 "pxor %%mm7, %%mm7\n" "movd (%%ebx), %%mm1\n" // 4 Cr 0 0 0 0 v3 v2 v1 v0 |
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253 "punpcklbw %%mm7, %%mm0\n" // 4 W cb 0 u3 0 u2 0 u1 0 u0 |
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254 "punpcklbw %%mm7, %%mm1\n" // 4 W cr 0 v3 0 v2 0 v1 0 v0 |
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255 "psubw _MMX_0080w, %%mm0\n" "psubw _MMX_0080w, %%mm1\n" "movq %%mm0, %%mm2\n" // Cb 0 u3 0 u2 0 u1 0 u0 |
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256 "movq %%mm1, %%mm3\n" // Cr |
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257 "pmullw _MMX_Ugrn565, %%mm2\n" // Cb2green 0 R3 0 R2 0 R1 0 R0 |
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258 "movq (%2), %%mm6\n" // L1 l7 L6 L5 L4 L3 L2 L1 L0 |
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259 "pmullw _MMX_Ublu5x5, %%mm0\n" // Cb2blue |
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260 "pand _MMX_00FFw, %%mm6\n" // L1 00 L6 00 L4 00 L2 00 L0 |
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261 "pmullw _MMX_Vgrn565, %%mm3\n" // Cr2green |
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262 "movq (%2), %%mm7\n" // L2 |
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263 "pmullw _MMX_Vred5x5, %%mm1\n" // Cr2red |
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264 "psrlw $8, %%mm7\n" // L2 00 L7 00 L5 00 L3 00 L1 |
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265 "pmullw _MMX_Ycoeff, %%mm6\n" // lum1 |
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266 "paddw %%mm3, %%mm2\n" // Cb2green + Cr2green == green |
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267 "pmullw _MMX_Ycoeff, %%mm7\n" // lum2 |
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268 "movq %%mm6, %%mm4\n" // lum1 |
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269 "paddw %%mm0, %%mm6\n" // lum1 +blue 00 B6 00 B4 00 B2 00 B0 |
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270 "movq %%mm4, %%mm5\n" // lum1 |
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271 "paddw %%mm1, %%mm4\n" // lum1 +red 00 R6 00 R4 00 R2 00 R0 |
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272 "paddw %%mm2, %%mm5\n" // lum1 +green 00 G6 00 G4 00 G2 00 G0 |
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273 "psraw $6, %%mm4\n" // R1 0 .. 64 |
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274 "movq %%mm7, %%mm3\n" // lum2 00 L7 00 L5 00 L3 00 L1 |
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275 "psraw $6, %%mm5\n" // G1 - .. + |
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276 "paddw %%mm0, %%mm7\n" // Lum2 +blue 00 B7 00 B5 00 B3 00 B1 |
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277 "psraw $6, %%mm6\n" // B1 0 .. 64 |
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278 "packuswb %%mm4, %%mm4\n" // R1 R1 |
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279 "packuswb %%mm5, %%mm5\n" // G1 G1 |
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280 "packuswb %%mm6, %%mm6\n" // B1 B1 |
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281 "punpcklbw %%mm4, %%mm4\n" "punpcklbw %%mm5, %%mm5\n" "pand _MMX_red565, %%mm4\n" "psllw $3, %%mm5\n" // GREEN 1 |
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282 "punpcklbw %%mm6, %%mm6\n" "pand _MMX_grn565, %%mm5\n" "pand _MMX_red565, %%mm6\n" "por %%mm5, %%mm4\n" // |
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283 "psrlw $11, %%mm6\n" // BLUE 1 |
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284 "movq %%mm3, %%mm5\n" // lum2 |
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285 "paddw %%mm1, %%mm3\n" // lum2 +red 00 R7 00 R5 00 R3 00 R1 |
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286 "paddw %%mm2, %%mm5\n" // lum2 +green 00 G7 00 G5 00 G3 00 G1 |
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287 "psraw $6, %%mm3\n" // R2 |
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288 "por %%mm6, %%mm4\n" // MM4 |
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289 "psraw $6, %%mm5\n" // G2 |
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290 "movq (%2, %4), %%mm6\n" // L3 load lum2 |
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291 "psraw $6, %%mm7\n" "packuswb %%mm3, %%mm3\n" "packuswb %%mm5, %%mm5\n" "packuswb %%mm7, %%mm7\n" "pand _MMX_00FFw, %%mm6\n" // L3 |
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292 "punpcklbw %%mm3, %%mm3\n" "punpcklbw %%mm5, %%mm5\n" "pmullw _MMX_Ycoeff, %%mm6\n" // lum3 |
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293 "punpcklbw %%mm7, %%mm7\n" "psllw $3, %%mm5\n" // GREEN 2 |
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294 "pand _MMX_red565, %%mm7\n" "pand _MMX_red565, %%mm3\n" "psrlw $11, %%mm7\n" // BLUE 2 |
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295 "pand _MMX_grn565, %%mm5\n" "por %%mm7, %%mm3\n" "movq (%2,%4), %%mm7\n" // L4 load lum2 |
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296 "por %%mm5, %%mm3\n" // |
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297 "psrlw $8, %%mm7\n" // L4 |
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298 "movq %%mm4, %%mm5\n" "punpcklwd %%mm3, %%mm4\n" "pmullw _MMX_Ycoeff, %%mm7\n" // lum4 |
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299 "punpckhwd %%mm3, %%mm5\n" "movq %%mm4, (%3)\n" // write row1 |
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300 "movq %%mm5, 8(%3)\n" // write row1 |
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301 "movq %%mm6, %%mm4\n" // Lum3 |
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302 "paddw %%mm0, %%mm6\n" // Lum3 +blue |
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303 "movq %%mm4, %%mm5\n" // Lum3 |
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304 "paddw %%mm1, %%mm4\n" // Lum3 +red |
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305 "paddw %%mm2, %%mm5\n" // Lum3 +green |
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306 "psraw $6, %%mm4\n" "movq %%mm7, %%mm3\n" // Lum4 |
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307 "psraw $6, %%mm5\n" "paddw %%mm0, %%mm7\n" // Lum4 +blue |
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308 "psraw $6, %%mm6\n" // Lum3 +blue |
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309 "movq %%mm3, %%mm0\n" // Lum4 |
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310 "packuswb %%mm4, %%mm4\n" "paddw %%mm1, %%mm3\n" // Lum4 +red |
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311 "packuswb %%mm5, %%mm5\n" "paddw %%mm2, %%mm0\n" // Lum4 +green |
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312 "packuswb %%mm6, %%mm6\n" "punpcklbw %%mm4, %%mm4\n" "punpcklbw %%mm5, %%mm5\n" "punpcklbw %%mm6, %%mm6\n" "psllw $3, %%mm5\n" // GREEN 3 |
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313 "pand _MMX_red565, %%mm4\n" "psraw $6, %%mm3\n" // psr 6 |
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314 "psraw $6, %%mm0\n" "pand _MMX_red565, %%mm6\n" // BLUE |
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315 "pand _MMX_grn565, %%mm5\n" "psrlw $11, %%mm6\n" // BLUE 3 |
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316 "por %%mm5, %%mm4\n" "psraw $6, %%mm7\n" "por %%mm6, %%mm4\n" "packuswb %%mm3, %%mm3\n" "packuswb %%mm0, %%mm0\n" "packuswb %%mm7, %%mm7\n" "punpcklbw %%mm3, %%mm3\n" "punpcklbw %%mm0, %%mm0\n" "punpcklbw %%mm7, %%mm7\n" "pand _MMX_red565, %%mm3\n" "pand _MMX_red565, %%mm7\n" // BLUE |
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317 "psllw $3, %%mm0\n" // GREEN 4 |
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318 "psrlw $11, %%mm7\n" "pand _MMX_grn565, %%mm0\n" "por %%mm7, %%mm3\n" "por %%mm0, %%mm3\n" "movq %%mm4, %%mm5\n" "punpcklwd %%mm3, %%mm4\n" "punpckhwd %%mm3, %%mm5\n" "movq %%mm4, (%5)\n" "movq %%mm5, 8(%5)\n" "addl $8, %6\n" "addl $8, %2\n" "addl $4, %%ebx\n" "addl $4, %1\n" "cmpl %4, %6\n" "leal 16(%3), %3\n" "leal 16(%5),%5\n" // row2+16 |
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319 "jl 1b\n" "addl %4, %2\n" // lum += cols |
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320 "addl %8, %3\n" // row1+= mod |
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321 "addl %8, %5\n" // row2+= mod |
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322 "movl $0, %6\n" // x=0 |
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323 "cmpl %7, %2\n" |
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324 "jl 1b\n" |
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325 "emms\n" |
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326 "popl %%ebx\n"::"m"(cr), "r"(cb), "r"(lum), |
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327 "r"(row1), "r"(cols), "r"(row2), "m"(x), |
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328 "m"(y), "m"(mod)); |
| 0 | 329 } |
| 330 | |
| 331 #endif /* GCC i386 inline assembly */ | |
| 1413 | 332 #endif /* 0 */ |
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333 /* vi: set ts=4 sw=4 expandtab: */ |