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comparison src/video/SDL_renderer_sw.c @ 1920:8a162bfdc838

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Convert SDL_malloc to SDL_calloc if appropriate, slightly faster on operating systems which map the zero page for memory allocations. OpenGL renderer in progress
author Sam Lantinga <slouken@libsdl.org>
date Sat, 22 Jul 2006 08:33:18 +0000
parents 092bd3a019c5
children 595ac54a8f9f
comparison
equal deleted inserted replaced
1919:00816063b9c9 1920:8a162bfdc838
103 static SDL_Texture * 103 static SDL_Texture *
104 CreateTexture(SDL_Renderer * renderer, Uint32 format, int w, int h) 104 CreateTexture(SDL_Renderer * renderer, Uint32 format, int w, int h)
105 { 105 {
106 SDL_Texture *texture; 106 SDL_Texture *texture;
107 107
108 texture = (SDL_Texture *) SDL_malloc(sizeof(*texture)); 108 texture = (SDL_Texture *) SDL_calloc(1, sizeof(*texture));
109 if (!texture) { 109 if (!texture) {
110 SDL_OutOfMemory(); 110 SDL_OutOfMemory();
111 return NULL; 111 return NULL;
112 } 112 }
113 113
114 SDL_zerop(texture);
115 texture->format = format; 114 texture->format = format;
116 texture->access = SDL_TextureAccess_Local; 115 texture->access = SDL_TextureAccess_Local;
117 texture->w = w; 116 texture->w = w;
118 texture->h = h; 117 texture->h = h;
119 texture->renderer = renderer; 118 texture->renderer = renderer;
171 if (!renderer) { 170 if (!renderer) {
172 SDL_OutOfMemory(); 171 SDL_OutOfMemory();
173 return NULL; 172 return NULL;
174 } 173 }
175 174
176 data = (SW_RenderData *) SDL_malloc(sizeof(*data)); 175 data = (SW_RenderData *) SDL_calloc(1, sizeof(*data));
177 if (!data) { 176 if (!data) {
178 SW_DestroyRenderer(renderer); 177 SW_DestroyRenderer(renderer);
179 SDL_OutOfMemory(); 178 SDL_OutOfMemory();
180 return NULL; 179 return NULL;
181 } 180 }
182 SDL_zerop(data);
183 181
184 renderer->CreateTexture = SW_CreateTexture; 182 renderer->CreateTexture = SW_CreateTexture;
185 renderer->QueryTexturePixels = SW_QueryTexturePixels; 183 renderer->QueryTexturePixels = SW_QueryTexturePixels;
186 renderer->SetTexturePalette = SW_SetTexturePalette; 184 renderer->SetTexturePalette = SW_SetTexturePalette;
187 renderer->GetTexturePalette = SW_GetTexturePalette; 185 renderer->GetTexturePalette = SW_GetTexturePalette;