Mercurial > sdl-ios-xcode

comparison src/render/SDL_render.c @ 5160:657543cc92f9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Making the API simpler, removed the writepixels interface
author Sam Lantinga <slouken@libsdl.org>
date Thu, 03 Feb 2011 00:22:18 -0800
parents 307ccc9c135e
children b3ccd1947786
comparison
equal deleted inserted replaced
5159:307ccc9c135e 5160:657543cc92f9
1210 1210
1211 return renderer->RenderReadPixels(renderer, &real_rect, 1211 return renderer->RenderReadPixels(renderer, &real_rect,
1212 format, pixels, pitch); 1212 format, pixels, pitch);
1213 } 1213 }
1214 1214
1215 int
1216 SDL_RenderWritePixels(SDL_Renderer * renderer, const SDL_Rect * rect,
1217 Uint32 format, const void * pixels, int pitch)
1218 {
1219 SDL_Window *window;
1220 SDL_Rect real_rect;
1221
1222 CHECK_RENDERER_MAGIC(renderer, -1);
1223
1224 if (!renderer->RenderWritePixels) {
1225 SDL_Unsupported();
1226 return -1;
1227 }
1228 window = renderer->window;
1229
1230 if (!format) {
1231 format = SDL_GetWindowPixelFormat(window);
1232 }
1233
1234 real_rect.x = 0;
1235 real_rect.y = 0;
1236 SDL_GetWindowSize(window, &real_rect.w, &real_rect.h);
1237 if (rect) {
1238 if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) {
1239 return 0;
1240 }
1241 if (real_rect.y > rect->y) {
1242 pixels = (const Uint8 *)pixels + pitch * (real_rect.y - rect->y);
1243 }
1244 if (real_rect.x > rect->x) {
1245 int bpp = SDL_BYTESPERPIXEL(SDL_GetWindowPixelFormat(window));
1246 pixels = (const Uint8 *)pixels + bpp * (real_rect.x - rect->x);
1247 }
1248 }
1249
1250 return renderer->RenderWritePixels(renderer, &real_rect,
1251 format, pixels, pitch);
1252 }
1253
1254 void 1215 void
1255 SDL_RenderPresent(SDL_Renderer * renderer) 1216 SDL_RenderPresent(SDL_Renderer * renderer)
1256 { 1217 {
1257 CHECK_RENDERER_MAGIC(renderer, ); 1218 CHECK_RENDERER_MAGIC(renderer, );
1258 1219