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comparison src/video/SDL_yuv_sw.c @ 1413:40edc79b0926

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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)
author Sam Lantinga <slouken@libsdl.org>
date Tue, 21 Feb 2006 22:12:55 +0000
parents d910939febfa
children 5f52867ba65c
comparison
equal deleted inserted replaced
1412:a8181c4040b8 1413:40edc79b0926
119 }; 119 };
120 120
121 121
122 /* The colorspace conversion functions */ 122 /* The colorspace conversion functions */
123 123
124 #if 0 /*defined(__GNUC__) && defined(__i386__) && SDL_ASSEMBLY_ROUTINES*/
124 extern void Color565DitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, 125 extern void Color565DitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix,
125 unsigned char *lum, unsigned char *cr, 126 unsigned char *lum, unsigned char *cr,
126 unsigned char *cb, unsigned char *out, 127 unsigned char *cb, unsigned char *out,
127 int rows, int cols, int mod ); 128 int rows, int cols, int mod );
128 extern void ColorRGBDitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix, 129 extern void ColorRGBDitherYV12MMX1X( int *colortab, Uint32 *rgb_2_pix,
129 unsigned char *lum, unsigned char *cr, 130 unsigned char *lum, unsigned char *cr,
130 unsigned char *cb, unsigned char *out, 131 unsigned char *cb, unsigned char *out,
131 int rows, int cols, int mod ); 132 int rows, int cols, int mod );
133 #endif
132 134
133 static void Color16DitherYV12Mod1X( int *colortab, Uint32 *rgb_2_pix, 135 static void Color16DitherYV12Mod1X( int *colortab, Uint32 *rgb_2_pix,
134 unsigned char *lum, unsigned char *cr, 136 unsigned char *lum, unsigned char *cr,
135 unsigned char *cb, unsigned char *out, 137 unsigned char *cb, unsigned char *out,
136 int rows, int cols, int mod ) 138 int rows, int cols, int mod )
1057 /* You have chosen wisely... */ 1059 /* You have chosen wisely... */
1058 switch (format) { 1060 switch (format) {
1059 case SDL_YV12_OVERLAY: 1061 case SDL_YV12_OVERLAY:
1060 case SDL_IYUV_OVERLAY: 1062 case SDL_IYUV_OVERLAY:
1061 if ( display->format->BytesPerPixel == 2 ) { 1063 if ( display->format->BytesPerPixel == 2 ) {
1062 #if defined(__GNUC__) && defined(__i386__) && SDL_ASSEMBLY_ROUTINES 1064 #if 0 /*defined(__GNUC__) && defined(__i386__) && SDL_ASSEMBLY_ROUTINES*/
1063 /* inline assembly functions */ 1065 /* inline assembly functions */
1064 if ( SDL_HasMMX() && (Rmask == 0xF800) && 1066 if ( SDL_HasMMX() && (Rmask == 0xF800) &&
1065 (Gmask == 0x07E0) && 1067 (Gmask == 0x07E0) &&
1066 (Bmask == 0x001F) && 1068 (Bmask == 0x001F) &&
1067 (width & 15) == 0) { 1069 (width & 15) == 0) {
1079 if ( display->format->BytesPerPixel == 3 ) { 1081 if ( display->format->BytesPerPixel == 3 ) {
1080 swdata->Display1X = Color24DitherYV12Mod1X; 1082 swdata->Display1X = Color24DitherYV12Mod1X;
1081 swdata->Display2X = Color24DitherYV12Mod2X; 1083 swdata->Display2X = Color24DitherYV12Mod2X;
1082 } 1084 }
1083 if ( display->format->BytesPerPixel == 4 ) { 1085 if ( display->format->BytesPerPixel == 4 ) {
1084 #if defined(__GNUC__) && defined(__i386__) && SDL_ASSEMBLY_ROUTINES 1086 #if 0 /*defined(__GNUC__) && defined(__i386__) && SDL_ASSEMBLY_ROUTINES*/
1085 /* inline assembly functions */ 1087 /* inline assembly functions */
1086 if ( SDL_HasMMX() && (Rmask == 0x00FF0000) && 1088 if ( SDL_HasMMX() && (Rmask == 0x00FF0000) &&
1087 (Gmask == 0x0000FF00) && 1089 (Gmask == 0x0000FF00) &&
1088 (Bmask == 0x000000FF) && 1090 (Bmask == 0x000000FF) &&
1089 (width & 15) == 0) { 1091 (width & 15) == 0) {