Mercurial > sdl-ios-xcode
annotate src/video/SDL_yuv_mmx.c @ 1157:baf35853ad54
Date: Mon, 10 Oct 2005 13:09:32 +0300
From: Tommi Kyntola <tommi.kyntola@ray.fi>
To: sdl@libsdl.org
Subject: [SDL] [RFC] get_ticks broken on linux
It uses gettimeofday to calculate the timedifference.
Gettimeofday returns current time which is seldom monotonous.
This breaks SDL timer subsystem. (time callbacks and all that
get borked when the time difference ms is suddenly ~ 2^32)
I posted a message about this earlier but got no response.
Some thoughts on this matter would be appreciated.
(Or even an explanation for the lack of interest.)
A patch below would use the posix timers that have been around
since posix 93 and do provide a good source of monotonous time
on linux boxes (and on few others too).
The following patch is also availabe at:
http://www.hut.fi/u/tkyntola/SDL-1.2.9-clockfix.patch
It's against 1.2.9, but I can easily rediffit against
the cvs branch is needed.
cheers,
Tommi Kyntola tommi.kyntola@ray.fi
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Tue, 11 Oct 2005 18:16:12 +0000 |
| parents | 63fb2da89a4b |
| children | c9b51268668f |
| 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 #define ASM_ARRAY(x) x[] __asm__("_" #x) __attribute__((used)) |
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34 |
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35 static unsigned int ASM_ARRAY(MMX_0080w) = {0x00800080, 0x00800080}; |
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36 static unsigned int ASM_ARRAY(MMX_00FFw) = {0x00ff00ff, 0x00ff00ff}; |
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37 static unsigned int ASM_ARRAY(MMX_FF00w) = {0xff00ff00, 0xff00ff00}; |
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38 |
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39 static unsigned short ASM_ARRAY(MMX_Ycoeff) = {0x004a, 0x004a, 0x004a, 0x004a}; |
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40 |
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41 static unsigned short ASM_ARRAY(MMX_UbluRGB) = {0x0072, 0x0072, 0x0072, 0x0072}; |
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42 static unsigned short ASM_ARRAY(MMX_VredRGB) = {0x0059, 0x0059, 0x0059, 0x0059}; |
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43 static unsigned short ASM_ARRAY(MMX_UgrnRGB) = {0xffea, 0xffea, 0xffea, 0xffea}; |
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44 static unsigned short ASM_ARRAY(MMX_VgrnRGB) = {0xffd2, 0xffd2, 0xffd2, 0xffd2}; |
| 0 | 45 |
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46 static unsigned short ASM_ARRAY(MMX_Ublu5x5) = {0x0081, 0x0081, 0x0081, 0x0081}; |
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47 static unsigned short ASM_ARRAY(MMX_Vred5x5) = {0x0066, 0x0066, 0x0066, 0x0066}; |
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48 static unsigned short ASM_ARRAY(MMX_Ugrn555) = {0xffe7, 0xffe7, 0xffe7, 0xffe7}; |
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49 static unsigned short ASM_ARRAY(MMX_Vgrn555) = {0xffcc, 0xffcc, 0xffcc, 0xffcc}; |
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parents:
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50 static unsigned short ASM_ARRAY(MMX_Ugrn565) = {0xffe8, 0xffe8, 0xffe8, 0xffe8}; |
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51 static unsigned short ASM_ARRAY(MMX_Vgrn565) = {0xffcd, 0xffcd, 0xffcd, 0xffcd}; |
| 0 | 52 |
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53 static unsigned short ASM_ARRAY(MMX_red555) = {0x7c00, 0x7c00, 0x7c00, 0x7c00}; |
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54 static unsigned short ASM_ARRAY(MMX_red565) = {0xf800, 0xf800, 0xf800, 0xf800}; |
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55 static unsigned short ASM_ARRAY(MMX_grn555) = {0x03e0, 0x03e0, 0x03e0, 0x03e0}; |
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56 static unsigned short ASM_ARRAY(MMX_grn565) = {0x07e0, 0x07e0, 0x07e0, 0x07e0}; |
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57 static unsigned short ASM_ARRAY(MMX_blu5x5) = {0x001f, 0x001f, 0x001f, 0x001f}; |
| 0 | 58 |
| 59 /** | |
| 60 This MMX assembler is my first assembler/MMX program ever. | |
| 61 Thus it maybe buggy. | |
| 62 Send patches to: | |
| 63 mvogt@rhrk.uni-kl.de | |
| 64 | |
| 65 After it worked fine I have "obfuscated" the code a bit to have | |
| 66 more parallism in the MMX units. This means I moved | |
| 67 initilisation around and delayed other instruction. | |
| 68 Performance measurement did not show that this brought any advantage | |
| 69 but in theory it _should_ be faster this way. | |
| 70 | |
| 71 The overall performanve gain to the C based dither was 30%-40%. | |
| 72 The MMX routine calculates 256bit=8RGB values in each cycle | |
| 73 (4 for row1 & 4 for row2) | |
| 74 | |
| 75 The red/green/blue.. coefficents are taken from the mpeg_play | |
| 76 player. They look nice, but I dont know if you can have | |
| 77 better values, to avoid integer rounding errors. | |
| 78 | |
| 79 | |
| 80 IMPORTANT: | |
| 81 ========== | |
| 82 | |
| 83 It is a requirement that the cr/cb/lum are 8 byte aligned and | |
| 84 the out are 16byte aligned or you will/may get segfaults | |
| 85 | |
| 86 */ | |
| 87 | |
| 88 void ColorRGBDitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, | |
| 89 unsigned char *lum, unsigned char *cr, | |
| 90 unsigned char *cb, unsigned char *out, | |
| 91 int rows, int cols, int mod ) | |
| 92 { | |
| 93 Uint32 *row1; | |
| 94 Uint32 *row2; | |
| 95 | |
| 96 unsigned char* y = lum +cols*rows; // Pointer to the end | |
| 97 int x=0; | |
| 98 row1 = (Uint32 *)out; // 32 bit target | |
| 99 row2 = (Uint32 *)out+cols+mod; // start of second row | |
| 100 mod = (mod+cols+mod)*4; // increment for row1 in byte | |
| 101 | |
| 102 __asm__ __volatile__ ( | |
| 103 /* We don't really care about PIC - the code should be rewritten to use | |
| 104 relative addressing for the static tables, so right now we take the | |
| 105 COW hit on the pages this code resides. Big deal. | |
| 106 This spill is just to reduce register pressure in the PIC case. */ | |
| 107 "pushl %%ebx\n" | |
| 108 "movl %0, %%ebx\n" | |
| 109 | |
| 110 ".align 8\n" | |
| 111 "1:\n" | |
| 112 | |
| 113 // create Cr (result in mm1) | |
| 114 "movd (%%ebx), %%mm1\n" // 0 0 0 0 v3 v2 v1 v0 | |
| 115 "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 | |
| 116 "movd (%2), %%mm2\n" // 0 0 0 0 l3 l2 l1 l0 | |
| 117 "punpcklbw %%mm7,%%mm1\n" // 0 v3 0 v2 00 v1 00 v0 | |
| 118 "punpckldq %%mm1,%%mm1\n" // 00 v1 00 v0 00 v1 00 v0 | |
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119 "psubw _MMX_0080w,%%mm1\n" // mm1-128:r1 r1 r0 r0 r1 r1 r0 r0 |
| 0 | 120 |
| 121 // create Cr_g (result in mm0) | |
| 122 "movq %%mm1,%%mm0\n" // r1 r1 r0 r0 r1 r1 r0 r0 | |
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123 "pmullw _MMX_VgrnRGB,%%mm0\n"// red*-46dec=0.7136*64 |
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124 "pmullw _MMX_VredRGB,%%mm1\n"// red*89dec=1.4013*64 |
| 0 | 125 "psraw $6, %%mm0\n" // red=red/64 |
| 126 "psraw $6, %%mm1\n" // red=red/64 | |
| 127 | |
| 128 // create L1 L2 (result in mm2,mm4) | |
| 129 // L2=lum+cols | |
| 130 "movq (%2,%4),%%mm3\n" // 0 0 0 0 L3 L2 L1 L0 | |
| 131 "punpckldq %%mm3,%%mm2\n" // L3 L2 L1 L0 l3 l2 l1 l0 | |
| 132 "movq %%mm2,%%mm4\n" // L3 L2 L1 L0 l3 l2 l1 l0 | |
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133 "pand _MMX_FF00w,%%mm2\n" // L3 0 L1 0 l3 0 l1 0 |
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134 "pand _MMX_00FFw,%%mm4\n" // 0 L2 0 L0 0 l2 0 l0 |
| 0 | 135 "psrlw $8,%%mm2\n" // 0 L3 0 L1 0 l3 0 l1 |
| 136 | |
| 137 // create R (result in mm6) | |
| 138 "movq %%mm2,%%mm5\n" // 0 L3 0 L1 0 l3 0 l1 | |
| 139 "movq %%mm4,%%mm6\n" // 0 L2 0 L0 0 l2 0 l0 | |
| 140 "paddsw %%mm1, %%mm5\n" // lum1+red:x R3 x R1 x r3 x r1 | |
| 141 "paddsw %%mm1, %%mm6\n" // lum1+red:x R2 x R0 x r2 x r0 | |
| 142 "packuswb %%mm5,%%mm5\n" // R3 R1 r3 r1 R3 R1 r3 r1 | |
| 143 "packuswb %%mm6,%%mm6\n" // R2 R0 r2 r0 R2 R0 r2 r0 | |
| 144 "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 | |
| 145 "punpcklbw %%mm5,%%mm6\n" // R3 R2 R1 R0 r3 r2 r1 r0 | |
| 146 | |
| 147 // create Cb (result in mm1) | |
| 148 "movd (%1), %%mm1\n" // 0 0 0 0 u3 u2 u1 u0 | |
| 149 "punpcklbw %%mm7,%%mm1\n" // 0 u3 0 u2 00 u1 00 u0 | |
| 150 "punpckldq %%mm1,%%mm1\n" // 00 u1 00 u0 00 u1 00 u0 | |
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parents:
949
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151 "psubw _MMX_0080w,%%mm1\n" // mm1-128:u1 u1 u0 u0 u1 u1 u0 u0 |
| 0 | 152 // create Cb_g (result in mm5) |
| 153 "movq %%mm1,%%mm5\n" // u1 u1 u0 u0 u1 u1 u0 u0 | |
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parents:
949
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154 "pmullw _MMX_UgrnRGB,%%mm5\n" // blue*-109dec=1.7129*64 |
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Sam Lantinga <slouken@libsdl.org>
parents:
949
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155 "pmullw _MMX_UbluRGB,%%mm1\n" // blue*114dec=1.78125*64 |
| 0 | 156 "psraw $6, %%mm5\n" // blue=red/64 |
| 157 "psraw $6, %%mm1\n" // blue=blue/64 | |
| 158 | |
| 159 // create G (result in mm7) | |
| 160 "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 | |
| 161 "movq %%mm4,%%mm7\n" // 0 L2 0 L0 0 l2 0 l1 | |
| 162 "paddsw %%mm5, %%mm3\n" // lum1+Cb_g:x G3t x G1t x g3t x g1t | |
| 163 "paddsw %%mm5, %%mm7\n" // lum1+Cb_g:x G2t x G0t x g2t x g0t | |
| 164 "paddsw %%mm0, %%mm3\n" // lum1+Cr_g:x G3 x G1 x g3 x g1 | |
| 165 "paddsw %%mm0, %%mm7\n" // lum1+blue:x G2 x G0 x g2 x g0 | |
| 166 "packuswb %%mm3,%%mm3\n" // G3 G1 g3 g1 G3 G1 g3 g1 | |
| 167 "packuswb %%mm7,%%mm7\n" // G2 G0 g2 g0 G2 G0 g2 g0 | |
| 168 "punpcklbw %%mm3,%%mm7\n" // G3 G2 G1 G0 g3 g2 g1 g0 | |
| 169 | |
| 170 // create B (result in mm5) | |
| 171 "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 | |
| 172 "movq %%mm4,%%mm5\n" // 0 L2 0 L0 0 l2 0 l1 | |
| 173 "paddsw %%mm1, %%mm3\n" // lum1+blue:x B3 x B1 x b3 x b1 | |
| 174 "paddsw %%mm1, %%mm5\n" // lum1+blue:x B2 x B0 x b2 x b0 | |
| 175 "packuswb %%mm3,%%mm3\n" // B3 B1 b3 b1 B3 B1 b3 b1 | |
| 176 "packuswb %%mm5,%%mm5\n" // B2 B0 b2 b0 B2 B0 b2 b0 | |
| 177 "punpcklbw %%mm3,%%mm5\n" // B3 B2 B1 B0 b3 b2 b1 b0 | |
| 178 | |
| 179 // fill destination row1 (needed are mm6=Rr,mm7=Gg,mm5=Bb) | |
| 180 | |
| 181 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 182 "pxor %%mm4,%%mm4\n" // 0 0 0 0 0 0 0 0 | |
| 183 "movq %%mm6,%%mm1\n" // R3 R2 R1 R0 r3 r2 r1 r0 | |
| 184 "movq %%mm5,%%mm3\n" // B3 B2 B1 B0 b3 b2 b1 b0 | |
| 185 // process lower lum | |
| 186 "punpcklbw %%mm4,%%mm1\n" // 0 r3 0 r2 0 r1 0 r0 | |
| 187 "punpcklbw %%mm4,%%mm3\n" // 0 b3 0 b2 0 b1 0 b0 | |
| 188 "movq %%mm1,%%mm2\n" // 0 r3 0 r2 0 r1 0 r0 | |
| 189 "movq %%mm3,%%mm0\n" // 0 b3 0 b2 0 b1 0 b0 | |
| 190 "punpcklwd %%mm1,%%mm3\n" // 0 r1 0 b1 0 r0 0 b0 | |
| 191 "punpckhwd %%mm2,%%mm0\n" // 0 r3 0 b3 0 r2 0 b2 | |
| 192 | |
| 193 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 194 "movq %%mm7,%%mm1\n" // G3 G2 G1 G0 g3 g2 g1 g0 | |
| 195 "punpcklbw %%mm1,%%mm2\n" // g3 0 g2 0 g1 0 g0 0 | |
| 196 "punpcklwd %%mm4,%%mm2\n" // 0 0 g1 0 0 0 g0 0 | |
| 197 "por %%mm3, %%mm2\n" // 0 r1 g1 b1 0 r0 g0 b0 | |
| 198 "movq %%mm2,(%3)\n" // wrote out ! row1 | |
| 199 | |
| 200 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 201 "punpcklbw %%mm1,%%mm4\n" // g3 0 g2 0 g1 0 g0 0 | |
| 202 "punpckhwd %%mm2,%%mm4\n" // 0 0 g3 0 0 0 g2 0 | |
| 203 "por %%mm0, %%mm4\n" // 0 r3 g3 b3 0 r2 g2 b2 | |
| 204 "movq %%mm4,8(%3)\n" // wrote out ! row1 | |
| 205 | |
| 206 // fill destination row2 (needed are mm6=Rr,mm7=Gg,mm5=Bb) | |
| 207 // this can be done "destructive" | |
| 208 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 209 "punpckhbw %%mm2,%%mm6\n" // 0 R3 0 R2 0 R1 0 R0 | |
| 210 "punpckhbw %%mm1,%%mm5\n" // G3 B3 G2 B2 G1 B1 G0 B0 | |
| 211 "movq %%mm5,%%mm1\n" // G3 B3 G2 B2 G1 B1 G0 B0 | |
| 212 "punpcklwd %%mm6,%%mm1\n" // 0 R1 G1 B1 0 R0 G0 B0 | |
| 213 "movq %%mm1,(%5)\n" // wrote out ! row2 | |
| 214 "punpckhwd %%mm6,%%mm5\n" // 0 R3 G3 B3 0 R2 G2 B2 | |
| 215 "movq %%mm5,8(%5)\n" // wrote out ! row2 | |
| 216 | |
| 217 "addl $4,%2\n" // lum+4 | |
| 218 "leal 16(%3),%3\n" // row1+16 | |
| 219 "leal 16(%5),%5\n" // row2+16 | |
| 220 "addl $2, %%ebx\n" // cr+2 | |
| 221 "addl $2, %1\n" // cb+2 | |
| 222 | |
| 223 "addl $4,%6\n" // x+4 | |
| 224 "cmpl %4,%6\n" | |
| 225 | |
| 226 "jl 1b\n" | |
| 227 "addl %4, %2\n" // lum += cols | |
| 228 "addl %8, %3\n" // row1+= mod | |
| 229 "addl %8, %5\n" // row2+= mod | |
| 230 "movl $0, %6\n" // x=0 | |
| 231 "cmpl %7, %2\n" | |
| 232 "jl 1b\n" | |
| 233 "emms\n" | |
| 234 "popl %%ebx\n" | |
| 235 : | |
| 236 : "m" (cr), "r"(cb),"r"(lum), | |
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parents:
1038
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237 "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod)); |
| 0 | 238 } |
| 239 | |
| 240 void Color565DitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, | |
| 241 unsigned char *lum, unsigned char *cr, | |
| 242 unsigned char *cb, unsigned char *out, | |
| 243 int rows, int cols, int mod ) | |
| 244 { | |
| 245 Uint16 *row1; | |
| 246 Uint16 *row2; | |
| 247 | |
| 248 unsigned char* y = lum +cols*rows; /* Pointer to the end */ | |
| 249 int x=0; | |
| 250 row1 = (Uint16 *)out; /* 16 bit target */ | |
| 251 row2 = (Uint16 *)out+cols+mod; /* start of second row */ | |
| 252 mod = (mod+cols+mod)*2; /* increment for row1 in byte */ | |
| 253 | |
| 254 | |
| 255 __asm__ __volatile__( | |
| 256 "pushl %%ebx\n" | |
| 257 "movl %0, %%ebx\n" | |
| 258 | |
| 259 ".align 8\n" | |
| 260 "1:\n" | |
| 261 "movd (%1), %%mm0\n" // 4 Cb 0 0 0 0 u3 u2 u1 u0 | |
| 262 "pxor %%mm7, %%mm7\n" | |
| 263 "movd (%%ebx), %%mm1\n" // 4 Cr 0 0 0 0 v3 v2 v1 v0 | |
| 264 "punpcklbw %%mm7, %%mm0\n" // 4 W cb 0 u3 0 u2 0 u1 0 u0 | |
| 265 "punpcklbw %%mm7, %%mm1\n" // 4 W cr 0 v3 0 v2 0 v1 0 v0 | |
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266 "psubw _MMX_0080w, %%mm0\n" |
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267 "psubw _MMX_0080w, %%mm1\n" |
| 0 | 268 "movq %%mm0, %%mm2\n" // Cb 0 u3 0 u2 0 u1 0 u0 |
| 269 "movq %%mm1, %%mm3\n" // Cr | |
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270 "pmullw _MMX_Ugrn565, %%mm2\n" // Cb2green 0 R3 0 R2 0 R1 0 R0 |
| 0 | 271 "movq (%2), %%mm6\n" // L1 l7 L6 L5 L4 L3 L2 L1 L0 |
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Ugly hack to make this work with gcc 2.x and 3.x
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272 "pmullw _MMX_Ublu5x5, %%mm0\n" // Cb2blue |
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273 "pand _MMX_00FFw, %%mm6\n" // L1 00 L6 00 L4 00 L2 00 L0 |
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274 "pmullw _MMX_Vgrn565, %%mm3\n" // Cr2green |
| 0 | 275 "movq (%2), %%mm7\n" // L2 |
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Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
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276 "pmullw _MMX_Vred5x5, %%mm1\n" // Cr2red |
| 0 | 277 "psrlw $8, %%mm7\n" // L2 00 L7 00 L5 00 L3 00 L1 |
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Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
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278 "pmullw _MMX_Ycoeff, %%mm6\n" // lum1 |
| 0 | 279 "paddw %%mm3, %%mm2\n" // Cb2green + Cr2green == green |
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Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
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280 "pmullw _MMX_Ycoeff, %%mm7\n" // lum2 |
| 0 | 281 |
| 282 "movq %%mm6, %%mm4\n" // lum1 | |
| 283 "paddw %%mm0, %%mm6\n" // lum1 +blue 00 B6 00 B4 00 B2 00 B0 | |
| 284 "movq %%mm4, %%mm5\n" // lum1 | |
| 285 "paddw %%mm1, %%mm4\n" // lum1 +red 00 R6 00 R4 00 R2 00 R0 | |
| 286 "paddw %%mm2, %%mm5\n" // lum1 +green 00 G6 00 G4 00 G2 00 G0 | |
| 287 "psraw $6, %%mm4\n" // R1 0 .. 64 | |
| 288 "movq %%mm7, %%mm3\n" // lum2 00 L7 00 L5 00 L3 00 L1 | |
| 289 "psraw $6, %%mm5\n" // G1 - .. + | |
| 290 "paddw %%mm0, %%mm7\n" // Lum2 +blue 00 B7 00 B5 00 B3 00 B1 | |
| 291 "psraw $6, %%mm6\n" // B1 0 .. 64 | |
| 292 "packuswb %%mm4, %%mm4\n" // R1 R1 | |
| 293 "packuswb %%mm5, %%mm5\n" // G1 G1 | |
| 294 "packuswb %%mm6, %%mm6\n" // B1 B1 | |
| 295 "punpcklbw %%mm4, %%mm4\n" | |
| 296 "punpcklbw %%mm5, %%mm5\n" | |
| 297 | |
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298 "pand _MMX_red565, %%mm4\n" |
| 0 | 299 "psllw $3, %%mm5\n" // GREEN 1 |
| 300 "punpcklbw %%mm6, %%mm6\n" | |
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301 "pand _MMX_grn565, %%mm5\n" |
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302 "pand _MMX_red565, %%mm6\n" |
| 0 | 303 "por %%mm5, %%mm4\n" // |
| 304 "psrlw $11, %%mm6\n" // BLUE 1 | |
| 305 "movq %%mm3, %%mm5\n" // lum2 | |
| 306 "paddw %%mm1, %%mm3\n" // lum2 +red 00 R7 00 R5 00 R3 00 R1 | |
| 307 "paddw %%mm2, %%mm5\n" // lum2 +green 00 G7 00 G5 00 G3 00 G1 | |
| 308 "psraw $6, %%mm3\n" // R2 | |
| 309 "por %%mm6, %%mm4\n" // MM4 | |
| 310 "psraw $6, %%mm5\n" // G2 | |
| 311 "movq (%2, %4), %%mm6\n" // L3 load lum2 | |
| 312 "psraw $6, %%mm7\n" | |
| 313 "packuswb %%mm3, %%mm3\n" | |
| 314 "packuswb %%mm5, %%mm5\n" | |
| 315 "packuswb %%mm7, %%mm7\n" | |
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Ugly hack to make this work with gcc 2.x and 3.x
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316 "pand _MMX_00FFw, %%mm6\n" // L3 |
| 0 | 317 "punpcklbw %%mm3, %%mm3\n" |
| 318 "punpcklbw %%mm5, %%mm5\n" | |
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Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
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319 "pmullw _MMX_Ycoeff, %%mm6\n" // lum3 |
| 0 | 320 "punpcklbw %%mm7, %%mm7\n" |
| 321 "psllw $3, %%mm5\n" // GREEN 2 | |
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1038
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Ugly hack to make this work with gcc 2.x and 3.x
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322 "pand _MMX_red565, %%mm7\n" |
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323 "pand _MMX_red565, %%mm3\n" |
| 0 | 324 "psrlw $11, %%mm7\n" // BLUE 2 |
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1038
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Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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325 "pand _MMX_grn565, %%mm5\n" |
| 0 | 326 "por %%mm7, %%mm3\n" |
| 327 "movq (%2,%4), %%mm7\n" // L4 load lum2 | |
| 328 "por %%mm5, %%mm3\n" // | |
| 329 "psrlw $8, %%mm7\n" // L4 | |
| 330 "movq %%mm4, %%mm5\n" | |
| 331 "punpcklwd %%mm3, %%mm4\n" | |
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1038
29d7db09776e
Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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332 "pmullw _MMX_Ycoeff, %%mm7\n" // lum4 |
| 0 | 333 "punpckhwd %%mm3, %%mm5\n" |
| 334 | |
| 335 "movq %%mm4, (%3)\n" // write row1 | |
| 336 "movq %%mm5, 8(%3)\n" // write row1 | |
| 337 | |
| 338 "movq %%mm6, %%mm4\n" // Lum3 | |
| 339 "paddw %%mm0, %%mm6\n" // Lum3 +blue | |
| 340 | |
| 341 "movq %%mm4, %%mm5\n" // Lum3 | |
| 342 "paddw %%mm1, %%mm4\n" // Lum3 +red | |
| 343 "paddw %%mm2, %%mm5\n" // Lum3 +green | |
| 344 "psraw $6, %%mm4\n" | |
| 345 "movq %%mm7, %%mm3\n" // Lum4 | |
| 346 "psraw $6, %%mm5\n" | |
| 347 "paddw %%mm0, %%mm7\n" // Lum4 +blue | |
| 348 "psraw $6, %%mm6\n" // Lum3 +blue | |
| 349 "movq %%mm3, %%mm0\n" // Lum4 | |
| 350 "packuswb %%mm4, %%mm4\n" | |
| 351 "paddw %%mm1, %%mm3\n" // Lum4 +red | |
| 352 "packuswb %%mm5, %%mm5\n" | |
| 353 "paddw %%mm2, %%mm0\n" // Lum4 +green | |
| 354 "packuswb %%mm6, %%mm6\n" | |
| 355 "punpcklbw %%mm4, %%mm4\n" | |
| 356 "punpcklbw %%mm5, %%mm5\n" | |
| 357 "punpcklbw %%mm6, %%mm6\n" | |
| 358 "psllw $3, %%mm5\n" // GREEN 3 | |
|
1038
29d7db09776e
Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
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changeset
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359 "pand _MMX_red565, %%mm4\n" |
| 0 | 360 "psraw $6, %%mm3\n" // psr 6 |
| 361 "psraw $6, %%mm0\n" | |
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1038
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Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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362 "pand _MMX_red565, %%mm6\n" // BLUE |
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Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
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363 "pand _MMX_grn565, %%mm5\n" |
| 0 | 364 "psrlw $11, %%mm6\n" // BLUE 3 |
| 365 "por %%mm5, %%mm4\n" | |
| 366 "psraw $6, %%mm7\n" | |
| 367 "por %%mm6, %%mm4\n" | |
| 368 "packuswb %%mm3, %%mm3\n" | |
| 369 "packuswb %%mm0, %%mm0\n" | |
| 370 "packuswb %%mm7, %%mm7\n" | |
| 371 "punpcklbw %%mm3, %%mm3\n" | |
| 372 "punpcklbw %%mm0, %%mm0\n" | |
| 373 "punpcklbw %%mm7, %%mm7\n" | |
|
1038
29d7db09776e
Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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374 "pand _MMX_red565, %%mm3\n" |
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Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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375 "pand _MMX_red565, %%mm7\n" // BLUE |
| 0 | 376 "psllw $3, %%mm0\n" // GREEN 4 |
| 377 "psrlw $11, %%mm7\n" | |
|
1038
29d7db09776e
Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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378 "pand _MMX_grn565, %%mm0\n" |
| 0 | 379 "por %%mm7, %%mm3\n" |
| 380 "por %%mm0, %%mm3\n" | |
| 381 | |
| 382 "movq %%mm4, %%mm5\n" | |
| 383 | |
| 384 "punpcklwd %%mm3, %%mm4\n" | |
| 385 "punpckhwd %%mm3, %%mm5\n" | |
| 386 | |
| 387 "movq %%mm4, (%5)\n" | |
| 388 "movq %%mm5, 8(%5)\n" | |
| 389 | |
| 390 "addl $8, %6\n" | |
| 391 "addl $8, %2\n" | |
| 392 "addl $4, %%ebx\n" | |
| 393 "addl $4, %1\n" | |
| 394 "cmpl %4, %6\n" | |
| 395 "leal 16(%3), %3\n" | |
| 396 "leal 16(%5),%5\n" // row2+16 | |
| 397 | |
| 398 | |
| 399 "jl 1b\n" | |
| 400 "addl %4, %2\n" // lum += cols | |
| 401 "addl %8, %3\n" // row1+= mod | |
| 402 "addl %8, %5\n" // row2+= mod | |
| 403 "movl $0, %6\n" // x=0 | |
| 404 "cmpl %7, %2\n" | |
| 405 "jl 1b\n" | |
| 406 "emms\n" | |
| 407 "popl %%ebx\n" | |
|
1038
29d7db09776e
Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
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408 : |
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29d7db09776e
Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
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409 :"m" (cr), "r"(cb),"r"(lum), |
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1148
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
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changeset
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410 "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod)); |
| 0 | 411 } |
| 412 | |
| 413 #endif /* GCC i386 inline assembly */ |