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comparison src/video/SDL_blit.c @ 739:22dbf364c017

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Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
author Sam Lantinga <slouken@libsdl.org>
date Tue, 18 Nov 2003 01:27:06 +0000
parents 8468fc0504f3
children b8d311d90021
comparison
equal deleted inserted replaced
738:82b85b731fe3 739:22dbf364c017
36 #include "SDL_RLEaccel_c.h" 36 #include "SDL_RLEaccel_c.h"
37 #include "SDL_pixels_c.h" 37 #include "SDL_pixels_c.h"
38 #include "SDL_memops.h" 38 #include "SDL_memops.h"
39 39
40 #if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT) 40 #if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT)
41 #include "SDL_cpuinfo.h"
41 #include "mmx.h" 42 #include "mmx.h"
42 /* Function to check the CPU flags */
43 #define MMX_CPU 0x800000
44 #define SSE_CPU 0x2000000
45 #define CPU_Flags() Hermes_X86_CPU()
46 #define X86_ASSEMBLER
47 #define HermesConverterInterface void
48 #define HermesClearInterface void
49 #define STACKCALL
50 #include "HeadX86.h"
51 #endif 43 #endif
52 44
53 /* The general purpose software blit routine */ 45 /* The general purpose software blit routine */
54 static int SDL_SoftBlit(SDL_Surface *src, SDL_Rect *srcrect, 46 static int SDL_SoftBlit(SDL_Surface *src, SDL_Rect *srcrect,
55 SDL_Surface *dst, SDL_Rect *dstrect) 47 SDL_Surface *dst, SDL_Rect *dstrect)
164 static void SDL_BlitCopy(SDL_BlitInfo *info) 156 static void SDL_BlitCopy(SDL_BlitInfo *info)
165 { 157 {
166 Uint8 *src, *dst; 158 Uint8 *src, *dst;
167 int w, h; 159 int w, h;
168 int srcskip, dstskip; 160 int srcskip, dstskip;
169 #if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT)
170 Uint32 f;
171 #endif
172 161
173 w = info->d_width*info->dst->BytesPerPixel; 162 w = info->d_width*info->dst->BytesPerPixel;
174 h = info->d_height; 163 h = info->d_height;
175 src = info->s_pixels; 164 src = info->s_pixels;
176 dst = info->d_pixels; 165 dst = info->d_pixels;
177 srcskip = w+info->s_skip; 166 srcskip = w+info->s_skip;
178 dstskip = w+info->d_skip; 167 dstskip = w+info->d_skip;
179 #if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT) 168 #if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT)
180 f=CPU_Flags(); 169 if(SDL_HasSSE())
181 if((f&(MMX_CPU|SSE_CPU))==(MMX_CPU|SSE_CPU))
182 { 170 {
183 while ( h-- ) { 171 while ( h-- ) {
184 SDL_memcpySSE(dst, src, w); 172 SDL_memcpySSE(dst, src, w);
185 src += srcskip; 173 src += srcskip;
186 dst += dstskip; 174 dst += dstskip;
188 __asm__ __volatile__ ( 176 __asm__ __volatile__ (
189 " emms\n" 177 " emms\n"
190 ::); 178 ::);
191 } 179 }
192 else 180 else
193 if((f&(MMX_CPU))!=0) 181 if(SDL_HasMMX())
194 { 182 {
195 while ( h-- ) { 183 while ( h-- ) {
196 SDL_memcpyMMX(dst, src, w); 184 SDL_memcpyMMX(dst, src, w);
197 src += srcskip; 185 src += srcskip;
198 dst += dstskip; 186 dst += dstskip;