Mercurial > sdl-ios-xcode

comparison src/video/SDL_blit.c @ 3909:6832b00d3594 SDL-1.2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Patched to compile on BeOS and old, old GCC releases.
author Ryan C. Gordon <icculus@icculus.org>
date Mon, 05 Feb 2007 06:44:51 +0000
parents d910939febfa
children a1b03ba2fcd0
comparison
equal deleted inserted replaced
3908:6e41f5d80198 3909:6832b00d3594
27 #include "SDL_RLEaccel_c.h" 27 #include "SDL_RLEaccel_c.h"
28 #include "SDL_pixels_c.h" 28 #include "SDL_pixels_c.h"
29 29
30 #if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)) && SDL_ASSEMBLY_ROUTINES 30 #if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)) && SDL_ASSEMBLY_ROUTINES
31 #define MMX_ASMBLIT 31 #define MMX_ASMBLIT
32 #if (__GNUC__ > 2) /* SSE instructions aren't in GCC 2. */
33 #define SSE_ASMBLIT
34 #endif
32 #endif 35 #endif
33 36
34 #if defined(MMX_ASMBLIT) 37 #if defined(MMX_ASMBLIT)
35 #include "SDL_cpuinfo.h" 38 #include "SDL_cpuinfo.h"
36 #include "mmx.h" 39 #include "mmx.h"
120 } 123 }
121 if (len&7) 124 if (len&7)
122 SDL_memcpy(to, from, len&7); 125 SDL_memcpy(to, from, len&7);
123 } 126 }
124 127
128 #ifdef SSE_ASMBLIT
125 static __inline__ void SDL_memcpySSE(Uint8 *to, const Uint8 *from, int len) 129 static __inline__ void SDL_memcpySSE(Uint8 *to, const Uint8 *from, int len)
126 { 130 {
127 int i; 131 int i;
128 132
129 __asm__ __volatile__ ( 133 __asm__ __volatile__ (
144 } 148 }
145 if (len&7) 149 if (len&7)
146 SDL_memcpy(to, from, len&7); 150 SDL_memcpy(to, from, len&7);
147 } 151 }
148 #endif 152 #endif
153 #endif
149 154
150 static void SDL_BlitCopy(SDL_BlitInfo *info) 155 static void SDL_BlitCopy(SDL_BlitInfo *info)
151 { 156 {
152 Uint8 *src, *dst; 157 Uint8 *src, *dst;
153 int w, h; 158 int w, h;
157 h = info->d_height; 162 h = info->d_height;
158 src = info->s_pixels; 163 src = info->s_pixels;
159 dst = info->d_pixels; 164 dst = info->d_pixels;
160 srcskip = w+info->s_skip; 165 srcskip = w+info->s_skip;
161 dstskip = w+info->d_skip; 166 dstskip = w+info->d_skip;
162 #ifdef MMX_ASMBLIT 167
168 #ifdef SSE_ASMBLIT
163 if(SDL_HasSSE()) 169 if(SDL_HasSSE())
164 { 170 {
165 while ( h-- ) { 171 while ( h-- ) {
166 SDL_memcpySSE(dst, src, w); 172 SDL_memcpySSE(dst, src, w);
167 src += srcskip; 173 src += srcskip;
170 __asm__ __volatile__ ( 176 __asm__ __volatile__ (
171 " emms\n" 177 " emms\n"
172 ::); 178 ::);
173 } 179 }
174 else 180 else
181 #endif
182 #ifdef MMX_ASMBLIT
175 if(SDL_HasMMX()) 183 if(SDL_HasMMX())
176 { 184 {
177 while ( h-- ) { 185 while ( h-- ) {
178 SDL_memcpyMMX(dst, src, w); 186 SDL_memcpyMMX(dst, src, w);
179 src += srcskip; 187 src += srcskip;