Mercurial > sdl-ios-xcode
annotate src/video/SDL_yuv_mmx.c @ 1555:780fd5b61df1
Fixed bug #89
Date: Sun, 23 Oct 2005 16:39:03 +0200
From: "A. Schmid" <sahib@phreaker.net>
Subject: [SDL] no software surfaces with svgalib driver?
Hi,
I noticed that the SDL (1.2.9) svgalib driver only makes use of linear
addressable (framebuffer) video modes. On older systems (like one of
mine), linear addressable modes are often not available.
Especially for cards with VESA VBE < 2.0 the svgalib vesa driver is
unusable, since VESA only supports framebuffering for VBE 2.0 and later.
The changes necessary to add support for software surfaces seem to be
relatively small. I only had to hack src/video/svga/SDL_svgavideo.c (see
attached patch). The code worked fine for me, but it is no more than a
proof of concept and should be reviewed (probably has a memory leak when
switching modes). It also uses the vgagl library (included in the
svgalib package) and needs to be linked against it.
-Alex
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 19 Mar 2006 12:05:16 +0000 |
| parents | 40edc79b0926 |
| children | 782fd950bd46 c121d94672cb f420bba13676 |
| 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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parents:
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15 You should have received a copy of the GNU Lesser General Public |
|
c9b51268668f
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Sam Lantinga <slouken@libsdl.org>
parents:
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16 License along with this library; if not, write to the Free Software |
|
c9b51268668f
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Sam Lantinga <slouken@libsdl.org>
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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 |
| 1413 | 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) */ |
|
1402
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Use consistent identifiers for the various platforms we support.
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parents:
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25 #if defined(__GNUC__) && defined(__i386__) && SDL_ASSEMBLY_ROUTINES |
| 0 | 26 |
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Whoops, forgot to check in this fix
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27 #include "SDL_stdinc.h" |
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Whoops, forgot to check in this fix
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28 |
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Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
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29 #define ASM_ARRAY(x) x[] __asm__("_" #x) __attribute__((used)) |
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Ugly hack to make this work with gcc 2.x and 3.x
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parents:
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30 |
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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:
1038
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changeset
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31 static unsigned int ASM_ARRAY(MMX_0080w) = {0x00800080, 0x00800080}; |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
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32 static unsigned int ASM_ARRAY(MMX_00FFw) = {0x00ff00ff, 0x00ff00ff}; |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
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33 static unsigned int ASM_ARRAY(MMX_FF00w) = {0xff00ff00, 0xff00ff00}; |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
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34 |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
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35 static unsigned short ASM_ARRAY(MMX_Ycoeff) = {0x004a, 0x004a, 0x004a, 0x004a}; |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
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36 |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
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37 static unsigned short ASM_ARRAY(MMX_UbluRGB) = {0x0072, 0x0072, 0x0072, 0x0072}; |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
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38 static unsigned short ASM_ARRAY(MMX_VredRGB) = {0x0059, 0x0059, 0x0059, 0x0059}; |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
|
39 static unsigned short ASM_ARRAY(MMX_UgrnRGB) = {0xffea, 0xffea, 0xffea, 0xffea}; |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
|
40 static unsigned short ASM_ARRAY(MMX_VgrnRGB) = {0xffd2, 0xffd2, 0xffd2, 0xffd2}; |
| 0 | 41 |
|
1148
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
|
42 static unsigned short ASM_ARRAY(MMX_Ublu5x5) = {0x0081, 0x0081, 0x0081, 0x0081}; |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
|
43 static unsigned short ASM_ARRAY(MMX_Vred5x5) = {0x0066, 0x0066, 0x0066, 0x0066}; |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
|
44 static unsigned short ASM_ARRAY(MMX_Ugrn555) = {0xffe7, 0xffe7, 0xffe7, 0xffe7}; |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
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45 static unsigned short ASM_ARRAY(MMX_Vgrn555) = {0xffcc, 0xffcc, 0xffcc, 0xffcc}; |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
|
46 static unsigned short ASM_ARRAY(MMX_Ugrn565) = {0xffe8, 0xffe8, 0xffe8, 0xffe8}; |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
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47 static unsigned short ASM_ARRAY(MMX_Vgrn565) = {0xffcd, 0xffcd, 0xffcd, 0xffcd}; |
| 0 | 48 |
|
1148
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
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49 static unsigned short ASM_ARRAY(MMX_red555) = {0x7c00, 0x7c00, 0x7c00, 0x7c00}; |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
|
50 static unsigned short ASM_ARRAY(MMX_red565) = {0xf800, 0xf800, 0xf800, 0xf800}; |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
|
51 static unsigned short ASM_ARRAY(MMX_grn555) = {0x03e0, 0x03e0, 0x03e0, 0x03e0}; |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
|
52 static unsigned short ASM_ARRAY(MMX_grn565) = {0x07e0, 0x07e0, 0x07e0, 0x07e0}; |
|
63fb2da89a4b
Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
|
53 static unsigned short ASM_ARRAY(MMX_blu5x5) = {0x001f, 0x001f, 0x001f, 0x001f}; |
| 0 | 54 |
| 55 /** | |
| 56 This MMX assembler is my first assembler/MMX program ever. | |
| 57 Thus it maybe buggy. | |
| 58 Send patches to: | |
| 59 mvogt@rhrk.uni-kl.de | |
| 60 | |
| 61 After it worked fine I have "obfuscated" the code a bit to have | |
| 62 more parallism in the MMX units. This means I moved | |
| 63 initilisation around and delayed other instruction. | |
| 64 Performance measurement did not show that this brought any advantage | |
| 65 but in theory it _should_ be faster this way. | |
| 66 | |
| 67 The overall performanve gain to the C based dither was 30%-40%. | |
| 68 The MMX routine calculates 256bit=8RGB values in each cycle | |
| 69 (4 for row1 & 4 for row2) | |
| 70 | |
| 71 The red/green/blue.. coefficents are taken from the mpeg_play | |
| 72 player. They look nice, but I dont know if you can have | |
| 73 better values, to avoid integer rounding errors. | |
| 74 | |
| 75 | |
| 76 IMPORTANT: | |
| 77 ========== | |
| 78 | |
| 79 It is a requirement that the cr/cb/lum are 8 byte aligned and | |
| 80 the out are 16byte aligned or you will/may get segfaults | |
| 81 | |
| 82 */ | |
| 83 | |
| 84 void ColorRGBDitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, | |
| 85 unsigned char *lum, unsigned char *cr, | |
| 86 unsigned char *cb, unsigned char *out, | |
| 87 int rows, int cols, int mod ) | |
| 88 { | |
| 89 Uint32 *row1; | |
| 90 Uint32 *row2; | |
| 91 | |
| 92 unsigned char* y = lum +cols*rows; // Pointer to the end | |
| 93 int x=0; | |
| 94 row1 = (Uint32 *)out; // 32 bit target | |
| 95 row2 = (Uint32 *)out+cols+mod; // start of second row | |
| 96 mod = (mod+cols+mod)*4; // increment for row1 in byte | |
| 97 | |
| 98 __asm__ __volatile__ ( | |
| 99 /* We don't really care about PIC - the code should be rewritten to use | |
| 100 relative addressing for the static tables, so right now we take the | |
| 101 COW hit on the pages this code resides. Big deal. | |
| 102 This spill is just to reduce register pressure in the PIC case. */ | |
| 103 "pushl %%ebx\n" | |
| 104 "movl %0, %%ebx\n" | |
| 105 | |
| 106 ".align 8\n" | |
| 107 "1:\n" | |
| 108 | |
| 109 // create Cr (result in mm1) | |
| 110 "movd (%%ebx), %%mm1\n" // 0 0 0 0 v3 v2 v1 v0 | |
| 111 "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 | |
| 112 "movd (%2), %%mm2\n" // 0 0 0 0 l3 l2 l1 l0 | |
| 113 "punpcklbw %%mm7,%%mm1\n" // 0 v3 0 v2 00 v1 00 v0 | |
| 114 "punpckldq %%mm1,%%mm1\n" // 00 v1 00 v0 00 v1 00 v0 | |
|
1038
29d7db09776e
Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
949
diff
changeset
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115 "psubw _MMX_0080w,%%mm1\n" // mm1-128:r1 r1 r0 r0 r1 r1 r0 r0 |
| 0 | 116 |
| 117 // create Cr_g (result in mm0) | |
| 118 "movq %%mm1,%%mm0\n" // r1 r1 r0 r0 r1 r1 r0 r0 | |
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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:
949
diff
changeset
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119 "pmullw _MMX_VgrnRGB,%%mm0\n"// red*-46dec=0.7136*64 |
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29d7db09776e
Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
949
diff
changeset
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120 "pmullw _MMX_VredRGB,%%mm1\n"// red*89dec=1.4013*64 |
| 0 | 121 "psraw $6, %%mm0\n" // red=red/64 |
| 122 "psraw $6, %%mm1\n" // red=red/64 | |
| 123 | |
| 124 // create L1 L2 (result in mm2,mm4) | |
| 125 // L2=lum+cols | |
| 126 "movq (%2,%4),%%mm3\n" // 0 0 0 0 L3 L2 L1 L0 | |
| 127 "punpckldq %%mm3,%%mm2\n" // L3 L2 L1 L0 l3 l2 l1 l0 | |
| 128 "movq %%mm2,%%mm4\n" // L3 L2 L1 L0 l3 l2 l1 l0 | |
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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:
949
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changeset
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129 "pand _MMX_FF00w,%%mm2\n" // L3 0 L1 0 l3 0 l1 0 |
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29d7db09776e
Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
949
diff
changeset
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130 "pand _MMX_00FFw,%%mm4\n" // 0 L2 0 L0 0 l2 0 l0 |
| 0 | 131 "psrlw $8,%%mm2\n" // 0 L3 0 L1 0 l3 0 l1 |
| 132 | |
| 133 // create R (result in mm6) | |
| 134 "movq %%mm2,%%mm5\n" // 0 L3 0 L1 0 l3 0 l1 | |
| 135 "movq %%mm4,%%mm6\n" // 0 L2 0 L0 0 l2 0 l0 | |
| 136 "paddsw %%mm1, %%mm5\n" // lum1+red:x R3 x R1 x r3 x r1 | |
| 137 "paddsw %%mm1, %%mm6\n" // lum1+red:x R2 x R0 x r2 x r0 | |
| 138 "packuswb %%mm5,%%mm5\n" // R3 R1 r3 r1 R3 R1 r3 r1 | |
| 139 "packuswb %%mm6,%%mm6\n" // R2 R0 r2 r0 R2 R0 r2 r0 | |
| 140 "pxor %%mm7,%%mm7\n" // 00 00 00 00 00 00 00 00 | |
| 141 "punpcklbw %%mm5,%%mm6\n" // R3 R2 R1 R0 r3 r2 r1 r0 | |
| 142 | |
| 143 // create Cb (result in mm1) | |
| 144 "movd (%1), %%mm1\n" // 0 0 0 0 u3 u2 u1 u0 | |
| 145 "punpcklbw %%mm7,%%mm1\n" // 0 u3 0 u2 00 u1 00 u0 | |
| 146 "punpckldq %%mm1,%%mm1\n" // 00 u1 00 u0 00 u1 00 u0 | |
|
1038
29d7db09776e
Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
949
diff
changeset
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147 "psubw _MMX_0080w,%%mm1\n" // mm1-128:u1 u1 u0 u0 u1 u1 u0 u0 |
| 0 | 148 // create Cb_g (result in mm5) |
| 149 "movq %%mm1,%%mm5\n" // u1 u1 u0 u0 u1 u1 u0 u0 | |
|
1038
29d7db09776e
Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
949
diff
changeset
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150 "pmullw _MMX_UgrnRGB,%%mm5\n" // blue*-109dec=1.7129*64 |
|
29d7db09776e
Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
949
diff
changeset
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151 "pmullw _MMX_UbluRGB,%%mm1\n" // blue*114dec=1.78125*64 |
| 0 | 152 "psraw $6, %%mm5\n" // blue=red/64 |
| 153 "psraw $6, %%mm1\n" // blue=blue/64 | |
| 154 | |
| 155 // create G (result in mm7) | |
| 156 "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 | |
| 157 "movq %%mm4,%%mm7\n" // 0 L2 0 L0 0 l2 0 l1 | |
| 158 "paddsw %%mm5, %%mm3\n" // lum1+Cb_g:x G3t x G1t x g3t x g1t | |
| 159 "paddsw %%mm5, %%mm7\n" // lum1+Cb_g:x G2t x G0t x g2t x g0t | |
| 160 "paddsw %%mm0, %%mm3\n" // lum1+Cr_g:x G3 x G1 x g3 x g1 | |
| 161 "paddsw %%mm0, %%mm7\n" // lum1+blue:x G2 x G0 x g2 x g0 | |
| 162 "packuswb %%mm3,%%mm3\n" // G3 G1 g3 g1 G3 G1 g3 g1 | |
| 163 "packuswb %%mm7,%%mm7\n" // G2 G0 g2 g0 G2 G0 g2 g0 | |
| 164 "punpcklbw %%mm3,%%mm7\n" // G3 G2 G1 G0 g3 g2 g1 g0 | |
| 165 | |
| 166 // create B (result in mm5) | |
| 167 "movq %%mm2,%%mm3\n" // 0 L3 0 L1 0 l3 0 l1 | |
| 168 "movq %%mm4,%%mm5\n" // 0 L2 0 L0 0 l2 0 l1 | |
| 169 "paddsw %%mm1, %%mm3\n" // lum1+blue:x B3 x B1 x b3 x b1 | |
| 170 "paddsw %%mm1, %%mm5\n" // lum1+blue:x B2 x B0 x b2 x b0 | |
| 171 "packuswb %%mm3,%%mm3\n" // B3 B1 b3 b1 B3 B1 b3 b1 | |
| 172 "packuswb %%mm5,%%mm5\n" // B2 B0 b2 b0 B2 B0 b2 b0 | |
| 173 "punpcklbw %%mm3,%%mm5\n" // B3 B2 B1 B0 b3 b2 b1 b0 | |
| 174 | |
| 175 // fill destination row1 (needed are mm6=Rr,mm7=Gg,mm5=Bb) | |
| 176 | |
| 177 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 178 "pxor %%mm4,%%mm4\n" // 0 0 0 0 0 0 0 0 | |
| 179 "movq %%mm6,%%mm1\n" // R3 R2 R1 R0 r3 r2 r1 r0 | |
| 180 "movq %%mm5,%%mm3\n" // B3 B2 B1 B0 b3 b2 b1 b0 | |
| 181 // process lower lum | |
| 182 "punpcklbw %%mm4,%%mm1\n" // 0 r3 0 r2 0 r1 0 r0 | |
| 183 "punpcklbw %%mm4,%%mm3\n" // 0 b3 0 b2 0 b1 0 b0 | |
| 184 "movq %%mm1,%%mm2\n" // 0 r3 0 r2 0 r1 0 r0 | |
| 185 "movq %%mm3,%%mm0\n" // 0 b3 0 b2 0 b1 0 b0 | |
| 186 "punpcklwd %%mm1,%%mm3\n" // 0 r1 0 b1 0 r0 0 b0 | |
| 187 "punpckhwd %%mm2,%%mm0\n" // 0 r3 0 b3 0 r2 0 b2 | |
| 188 | |
| 189 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 190 "movq %%mm7,%%mm1\n" // G3 G2 G1 G0 g3 g2 g1 g0 | |
| 191 "punpcklbw %%mm1,%%mm2\n" // g3 0 g2 0 g1 0 g0 0 | |
| 192 "punpcklwd %%mm4,%%mm2\n" // 0 0 g1 0 0 0 g0 0 | |
| 193 "por %%mm3, %%mm2\n" // 0 r1 g1 b1 0 r0 g0 b0 | |
| 194 "movq %%mm2,(%3)\n" // wrote out ! row1 | |
| 195 | |
| 196 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 197 "punpcklbw %%mm1,%%mm4\n" // g3 0 g2 0 g1 0 g0 0 | |
| 198 "punpckhwd %%mm2,%%mm4\n" // 0 0 g3 0 0 0 g2 0 | |
| 199 "por %%mm0, %%mm4\n" // 0 r3 g3 b3 0 r2 g2 b2 | |
| 200 "movq %%mm4,8(%3)\n" // wrote out ! row1 | |
| 201 | |
| 202 // fill destination row2 (needed are mm6=Rr,mm7=Gg,mm5=Bb) | |
| 203 // this can be done "destructive" | |
| 204 "pxor %%mm2,%%mm2\n" // 0 0 0 0 0 0 0 0 | |
| 205 "punpckhbw %%mm2,%%mm6\n" // 0 R3 0 R2 0 R1 0 R0 | |
| 206 "punpckhbw %%mm1,%%mm5\n" // G3 B3 G2 B2 G1 B1 G0 B0 | |
| 207 "movq %%mm5,%%mm1\n" // G3 B3 G2 B2 G1 B1 G0 B0 | |
| 208 "punpcklwd %%mm6,%%mm1\n" // 0 R1 G1 B1 0 R0 G0 B0 | |
| 209 "movq %%mm1,(%5)\n" // wrote out ! row2 | |
| 210 "punpckhwd %%mm6,%%mm5\n" // 0 R3 G3 B3 0 R2 G2 B2 | |
| 211 "movq %%mm5,8(%5)\n" // wrote out ! row2 | |
| 212 | |
| 213 "addl $4,%2\n" // lum+4 | |
| 214 "leal 16(%3),%3\n" // row1+16 | |
| 215 "leal 16(%5),%5\n" // row2+16 | |
| 216 "addl $2, %%ebx\n" // cr+2 | |
| 217 "addl $2, %1\n" // cb+2 | |
| 218 | |
| 219 "addl $4,%6\n" // x+4 | |
| 220 "cmpl %4,%6\n" | |
| 221 | |
| 222 "jl 1b\n" | |
| 223 "addl %4, %2\n" // lum += cols | |
| 224 "addl %8, %3\n" // row1+= mod | |
| 225 "addl %8, %5\n" // row2+= mod | |
| 226 "movl $0, %6\n" // x=0 | |
| 227 "cmpl %7, %2\n" | |
| 228 "jl 1b\n" | |
| 229 "emms\n" | |
| 230 "popl %%ebx\n" | |
| 231 : | |
| 232 : "m" (cr), "r"(cb),"r"(lum), | |
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233 "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod)); |
| 0 | 234 } |
| 235 | |
| 236 void Color565DitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, | |
| 237 unsigned char *lum, unsigned char *cr, | |
| 238 unsigned char *cb, unsigned char *out, | |
| 239 int rows, int cols, int mod ) | |
| 240 { | |
| 241 Uint16 *row1; | |
| 242 Uint16 *row2; | |
| 243 | |
| 244 unsigned char* y = lum +cols*rows; /* Pointer to the end */ | |
| 245 int x=0; | |
| 246 row1 = (Uint16 *)out; /* 16 bit target */ | |
| 247 row2 = (Uint16 *)out+cols+mod; /* start of second row */ | |
| 248 mod = (mod+cols+mod)*2; /* increment for row1 in byte */ | |
| 249 | |
| 250 | |
| 251 __asm__ __volatile__( | |
| 252 "pushl %%ebx\n" | |
| 253 "movl %0, %%ebx\n" | |
| 254 | |
| 255 ".align 8\n" | |
| 256 "1:\n" | |
| 257 "movd (%1), %%mm0\n" // 4 Cb 0 0 0 0 u3 u2 u1 u0 | |
| 258 "pxor %%mm7, %%mm7\n" | |
| 259 "movd (%%ebx), %%mm1\n" // 4 Cr 0 0 0 0 v3 v2 v1 v0 | |
| 260 "punpcklbw %%mm7, %%mm0\n" // 4 W cb 0 u3 0 u2 0 u1 0 u0 | |
| 261 "punpcklbw %%mm7, %%mm1\n" // 4 W cr 0 v3 0 v2 0 v1 0 v0 | |
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262 "psubw _MMX_0080w, %%mm0\n" |
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263 "psubw _MMX_0080w, %%mm1\n" |
| 0 | 264 "movq %%mm0, %%mm2\n" // Cb 0 u3 0 u2 0 u1 0 u0 |
| 265 "movq %%mm1, %%mm3\n" // Cr | |
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266 "pmullw _MMX_Ugrn565, %%mm2\n" // Cb2green 0 R3 0 R2 0 R1 0 R0 |
| 0 | 267 "movq (%2), %%mm6\n" // L1 l7 L6 L5 L4 L3 L2 L1 L0 |
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268 "pmullw _MMX_Ublu5x5, %%mm0\n" // Cb2blue |
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269 "pand _MMX_00FFw, %%mm6\n" // L1 00 L6 00 L4 00 L2 00 L0 |
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270 "pmullw _MMX_Vgrn565, %%mm3\n" // Cr2green |
| 0 | 271 "movq (%2), %%mm7\n" // L2 |
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272 "pmullw _MMX_Vred5x5, %%mm1\n" // Cr2red |
| 0 | 273 "psrlw $8, %%mm7\n" // L2 00 L7 00 L5 00 L3 00 L1 |
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274 "pmullw _MMX_Ycoeff, %%mm6\n" // lum1 |
| 0 | 275 "paddw %%mm3, %%mm2\n" // Cb2green + Cr2green == green |
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276 "pmullw _MMX_Ycoeff, %%mm7\n" // lum2 |
| 0 | 277 |
| 278 "movq %%mm6, %%mm4\n" // lum1 | |
| 279 "paddw %%mm0, %%mm6\n" // lum1 +blue 00 B6 00 B4 00 B2 00 B0 | |
| 280 "movq %%mm4, %%mm5\n" // lum1 | |
| 281 "paddw %%mm1, %%mm4\n" // lum1 +red 00 R6 00 R4 00 R2 00 R0 | |
| 282 "paddw %%mm2, %%mm5\n" // lum1 +green 00 G6 00 G4 00 G2 00 G0 | |
| 283 "psraw $6, %%mm4\n" // R1 0 .. 64 | |
| 284 "movq %%mm7, %%mm3\n" // lum2 00 L7 00 L5 00 L3 00 L1 | |
| 285 "psraw $6, %%mm5\n" // G1 - .. + | |
| 286 "paddw %%mm0, %%mm7\n" // Lum2 +blue 00 B7 00 B5 00 B3 00 B1 | |
| 287 "psraw $6, %%mm6\n" // B1 0 .. 64 | |
| 288 "packuswb %%mm4, %%mm4\n" // R1 R1 | |
| 289 "packuswb %%mm5, %%mm5\n" // G1 G1 | |
| 290 "packuswb %%mm6, %%mm6\n" // B1 B1 | |
| 291 "punpcklbw %%mm4, %%mm4\n" | |
| 292 "punpcklbw %%mm5, %%mm5\n" | |
| 293 | |
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294 "pand _MMX_red565, %%mm4\n" |
| 0 | 295 "psllw $3, %%mm5\n" // GREEN 1 |
| 296 "punpcklbw %%mm6, %%mm6\n" | |
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297 "pand _MMX_grn565, %%mm5\n" |
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298 "pand _MMX_red565, %%mm6\n" |
| 0 | 299 "por %%mm5, %%mm4\n" // |
| 300 "psrlw $11, %%mm6\n" // BLUE 1 | |
| 301 "movq %%mm3, %%mm5\n" // lum2 | |
| 302 "paddw %%mm1, %%mm3\n" // lum2 +red 00 R7 00 R5 00 R3 00 R1 | |
| 303 "paddw %%mm2, %%mm5\n" // lum2 +green 00 G7 00 G5 00 G3 00 G1 | |
| 304 "psraw $6, %%mm3\n" // R2 | |
| 305 "por %%mm6, %%mm4\n" // MM4 | |
| 306 "psraw $6, %%mm5\n" // G2 | |
| 307 "movq (%2, %4), %%mm6\n" // L3 load lum2 | |
| 308 "psraw $6, %%mm7\n" | |
| 309 "packuswb %%mm3, %%mm3\n" | |
| 310 "packuswb %%mm5, %%mm5\n" | |
| 311 "packuswb %%mm7, %%mm7\n" | |
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312 "pand _MMX_00FFw, %%mm6\n" // L3 |
| 0 | 313 "punpcklbw %%mm3, %%mm3\n" |
| 314 "punpcklbw %%mm5, %%mm5\n" | |
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Sam Lantinga <slouken@libsdl.org>
parents:
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315 "pmullw _MMX_Ycoeff, %%mm6\n" // lum3 |
| 0 | 316 "punpcklbw %%mm7, %%mm7\n" |
| 317 "psllw $3, %%mm5\n" // GREEN 2 | |
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Ugly hack to make this work with gcc 2.x and 3.x
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318 "pand _MMX_red565, %%mm7\n" |
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319 "pand _MMX_red565, %%mm3\n" |
| 0 | 320 "psrlw $11, %%mm7\n" // BLUE 2 |
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Sam Lantinga <slouken@libsdl.org>
parents:
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321 "pand _MMX_grn565, %%mm5\n" |
| 0 | 322 "por %%mm7, %%mm3\n" |
| 323 "movq (%2,%4), %%mm7\n" // L4 load lum2 | |
| 324 "por %%mm5, %%mm3\n" // | |
| 325 "psrlw $8, %%mm7\n" // L4 | |
| 326 "movq %%mm4, %%mm5\n" | |
| 327 "punpcklwd %%mm3, %%mm4\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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328 "pmullw _MMX_Ycoeff, %%mm7\n" // lum4 |
| 0 | 329 "punpckhwd %%mm3, %%mm5\n" |
| 330 | |
| 331 "movq %%mm4, (%3)\n" // write row1 | |
| 332 "movq %%mm5, 8(%3)\n" // write row1 | |
| 333 | |
| 334 "movq %%mm6, %%mm4\n" // Lum3 | |
| 335 "paddw %%mm0, %%mm6\n" // Lum3 +blue | |
| 336 | |
| 337 "movq %%mm4, %%mm5\n" // Lum3 | |
| 338 "paddw %%mm1, %%mm4\n" // Lum3 +red | |
| 339 "paddw %%mm2, %%mm5\n" // Lum3 +green | |
| 340 "psraw $6, %%mm4\n" | |
| 341 "movq %%mm7, %%mm3\n" // Lum4 | |
| 342 "psraw $6, %%mm5\n" | |
| 343 "paddw %%mm0, %%mm7\n" // Lum4 +blue | |
| 344 "psraw $6, %%mm6\n" // Lum3 +blue | |
| 345 "movq %%mm3, %%mm0\n" // Lum4 | |
| 346 "packuswb %%mm4, %%mm4\n" | |
| 347 "paddw %%mm1, %%mm3\n" // Lum4 +red | |
| 348 "packuswb %%mm5, %%mm5\n" | |
| 349 "paddw %%mm2, %%mm0\n" // Lum4 +green | |
| 350 "packuswb %%mm6, %%mm6\n" | |
| 351 "punpcklbw %%mm4, %%mm4\n" | |
| 352 "punpcklbw %%mm5, %%mm5\n" | |
| 353 "punpcklbw %%mm6, %%mm6\n" | |
| 354 "psllw $3, %%mm5\n" // GREEN 3 | |
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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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355 "pand _MMX_red565, %%mm4\n" |
| 0 | 356 "psraw $6, %%mm3\n" // psr 6 |
| 357 "psraw $6, %%mm0\n" | |
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358 "pand _MMX_red565, %%mm6\n" // BLUE |
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Sam Lantinga <slouken@libsdl.org>
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359 "pand _MMX_grn565, %%mm5\n" |
| 0 | 360 "psrlw $11, %%mm6\n" // BLUE 3 |
| 361 "por %%mm5, %%mm4\n" | |
| 362 "psraw $6, %%mm7\n" | |
| 363 "por %%mm6, %%mm4\n" | |
| 364 "packuswb %%mm3, %%mm3\n" | |
| 365 "packuswb %%mm0, %%mm0\n" | |
| 366 "packuswb %%mm7, %%mm7\n" | |
| 367 "punpcklbw %%mm3, %%mm3\n" | |
| 368 "punpcklbw %%mm0, %%mm0\n" | |
| 369 "punpcklbw %%mm7, %%mm7\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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370 "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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changeset
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371 "pand _MMX_red565, %%mm7\n" // BLUE |
| 0 | 372 "psllw $3, %%mm0\n" // GREEN 4 |
| 373 "psrlw $11, %%mm7\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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374 "pand _MMX_grn565, %%mm0\n" |
| 0 | 375 "por %%mm7, %%mm3\n" |
| 376 "por %%mm0, %%mm3\n" | |
| 377 | |
| 378 "movq %%mm4, %%mm5\n" | |
| 379 | |
| 380 "punpcklwd %%mm3, %%mm4\n" | |
| 381 "punpckhwd %%mm3, %%mm5\n" | |
| 382 | |
| 383 "movq %%mm4, (%5)\n" | |
| 384 "movq %%mm5, 8(%5)\n" | |
| 385 | |
| 386 "addl $8, %6\n" | |
| 387 "addl $8, %2\n" | |
| 388 "addl $4, %%ebx\n" | |
| 389 "addl $4, %1\n" | |
| 390 "cmpl %4, %6\n" | |
| 391 "leal 16(%3), %3\n" | |
| 392 "leal 16(%5),%5\n" // row2+16 | |
| 393 | |
| 394 | |
| 395 "jl 1b\n" | |
| 396 "addl %4, %2\n" // lum += cols | |
| 397 "addl %8, %3\n" // row1+= mod | |
| 398 "addl %8, %5\n" // row2+= mod | |
| 399 "movl $0, %6\n" // x=0 | |
| 400 "cmpl %7, %2\n" | |
| 401 "jl 1b\n" | |
| 402 "emms\n" | |
| 403 "popl %%ebx\n" | |
|
1038
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Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
949
diff
changeset
|
404 : |
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29d7db09776e
Ugly hack to make this work with gcc 2.x and 3.x
Sam Lantinga <slouken@libsdl.org>
parents:
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405 :"m" (cr), "r"(cb),"r"(lum), |
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1148
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Patched inline assembly to compile on gcc 4.0.1. Details are here:
Ryan C. Gordon <icculus@icculus.org>
parents:
1038
diff
changeset
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406 "r"(row1),"r"(cols),"r"(row2),"m"(x),"m"(y),"m"(mod)); |
| 0 | 407 } |
| 408 | |
| 409 #endif /* GCC i386 inline assembly */ | |
| 1413 | 410 #endif /* 0 */ |