equal
deleted
inserted
replaced
137 { |
137 { |
138 int i; |
138 int i; |
139 static Uint32 features = 0xffffffff; |
139 static Uint32 features = 0xffffffff; |
140 |
140 |
141 if (features == 0xffffffff) { |
141 if (features == 0xffffffff) { |
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142 const char *override = SDL_getenv("SDL_BLIT_FEATURES"); |
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143 |
142 features = SDL_BLIT_ANY; |
144 features = SDL_BLIT_ANY; |
143 |
145 |
144 /* Provide an override for testing .. */ |
146 /* Allow an override for testing .. */ |
145 const char *override = SDL_getenv("SDL_BLIT_FEATURES"); |
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146 if (override) { |
147 if (override) { |
147 SDL_sscanf(override, "%u", &features); |
148 SDL_sscanf(override, "%u", &features); |
148 } else { |
149 } else { |
149 if (SDL_HasMMX()) { |
150 if (SDL_HasMMX()) { |
150 features |= SDL_BLIT_MMX; |
151 features |= SDL_BLIT_MMX; |
151 } |
152 } |
152 if (SDL_HasSSE()) { |
153 if (SDL_HasSSE()) { |
153 features |= SDL_BLIT_SSE; |
154 features |= SDL_BLIT_SSE; |
154 } |
155 } |
155 if (SDL_HasAltivec()) { |
156 if (SDL_HasAltiVec()) { |
156 if (SDL_UseAltivecPrefetch()) { |
157 if (SDL_UseAltivecPrefetch()) { |
157 features |= SDL_BLIT_ALTIVEC_PREFETCH; |
158 features |= SDL_BLIT_ALTIVEC_PREFETCH; |
158 } else { |
159 } else { |
159 features |= SDL_BLIT_ALTIVEC_NOPREFETCH; |
160 features |= SDL_BLIT_ALTIVEC_NOPREFETCH; |
160 } |
161 } |