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comparison src/video/SDL_video.c @ 1907:06c27a737b7a

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Streamlined the API a bit and optimized the software renderer.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 15 Jul 2006 09:46:36 +0000
parents 36d52b1f0504
children 8f1ab2f7c722
comparison
equal deleted inserted replaced
1906:0c49855a7a3e 1907:06c27a737b7a
1275 } 1275 }
1276 1276
1277 int 1277 int
1278 SDL_GetRendererInfo(int index, SDL_RendererInfo * info) 1278 SDL_GetRendererInfo(int index, SDL_RendererInfo * info)
1279 { 1279 {
1280 if (index < 0 || index >= SDL_GetNumRenderers()) { 1280 if (!_this) {
1281 return -1;
1282 }
1283
1284 if (index >= SDL_GetNumRenderers()) {
1281 SDL_SetError("index must be in the range of 0 - %d", 1285 SDL_SetError("index must be in the range of 0 - %d",
1282 SDL_GetNumRenderers() - 1); 1286 SDL_GetNumRenderers() - 1);
1283 return -1; 1287 return -1;
1284 } 1288 }
1285 *info = SDL_CurrentDisplay.render_drivers[index].info; 1289 if (index < 0) {
1290 if (!SDL_CurrentDisplay.current_renderer) {
1291 SDL_SetError("There is no current renderer");
1292 return -1;
1293 }
1294 *info = SDL_CurrentDisplay.current_renderer->info;
1295 } else {
1296 *info = SDL_CurrentDisplay.render_drivers[index].info;
1297 }
1286 return 0; 1298 return 0;
1287 } 1299 }
1288 1300
1289 int 1301 int
1290 SDL_CreateRenderer(SDL_WindowID windowID, int index, Uint32 flags) 1302 SDL_CreateRenderer(SDL_WindowID windowID, int index, Uint32 flags)
1305 if (override) { 1317 if (override) {
1306 if (SDL_strcasecmp(override, driver->info.name) == 0) { 1318 if (SDL_strcasecmp(override, driver->info.name) == 0) {
1307 break; 1319 break;
1308 } 1320 }
1309 } else { 1321 } else {
1310 /* Skip minimal drivers in automatic scans */
1311 if (!(flags & SDL_Renderer_Minimal)
1312 && (driver->info.flags & SDL_Renderer_Minimal)) {
1313 continue;
1314 }
1315 if ((driver->info.flags & flags) == flags) { 1322 if ((driver->info.flags & flags) == flags) {
1316 break; 1323 break;
1317 } 1324 }
1318 } 1325 }
1319 } 1326 }
1732 return; 1739 return;
1733 } 1740 }
1734 renderer->DirtyTexture(renderer, texture, numrects, rects); 1741 renderer->DirtyTexture(renderer, texture, numrects, rects);
1735 } 1742 }
1736 1743
1737 void
1738 SDL_SelectRenderTexture(SDL_TextureID textureID)
1739 {
1740 SDL_Texture *texture = SDL_GetTextureFromID(textureID);
1741 SDL_Renderer *renderer;
1742
1743 if (!texture || texture->access != SDL_TextureAccess_Render) {
1744 return;
1745 }
1746 renderer = texture->renderer;
1747 if (!renderer->SelectRenderTexture) {
1748 return;
1749 }
1750 renderer->SelectRenderTexture(renderer, texture);
1751 }
1752
1753 int 1744 int
1754 SDL_RenderFill(const SDL_Rect * rect, Uint32 color) 1745 SDL_RenderFill(const SDL_Rect * rect, Uint32 color)
1755 { 1746 {
1756 SDL_Renderer *renderer; 1747 SDL_Renderer *renderer;
1757 SDL_Window *window; 1748 SDL_Window *window;
1819 1810
1820 return renderer->RenderCopy(renderer, texture, &real_srcrect, 1811 return renderer->RenderCopy(renderer, texture, &real_srcrect,
1821 &real_dstrect, blendMode, scaleMode); 1812 &real_dstrect, blendMode, scaleMode);
1822 } 1813 }
1823 1814
1824 int
1825 SDL_RenderReadPixels(const SDL_Rect * rect, void *pixels, int pitch)
1826 {
1827 SDL_Renderer *renderer;
1828 SDL_Rect full_rect;
1829
1830 if (!_this) {
1831 return -1;
1832 }
1833
1834 renderer = SDL_CurrentDisplay.current_renderer;
1835 if (!renderer || !renderer->RenderReadPixels) {
1836 return -1;
1837 }
1838
1839 if (!rect) {
1840 SDL_Window *window = SDL_GetWindowFromID(renderer->window);
1841 full_rect.x = 0;
1842 full_rect.y = 0;
1843 full_rect.w = window->w;
1844 full_rect.h = window->h;
1845 rect = &full_rect;
1846 }
1847
1848 return renderer->RenderReadPixels(renderer, rect, pixels, pitch);
1849 }
1850
1851 int
1852 SDL_RenderWritePixels(const SDL_Rect * rect, const void *pixels, int pitch)
1853 {
1854 SDL_Renderer *renderer;
1855 SDL_Rect full_rect;
1856
1857 if (!_this) {
1858 return -1;
1859 }
1860
1861 renderer = SDL_CurrentDisplay.current_renderer;
1862 if (!renderer || !renderer->RenderWritePixels) {
1863 return -1;
1864 }
1865
1866 if (!rect) {
1867 SDL_Window *window = SDL_GetWindowFromID(renderer->window);
1868 full_rect.x = 0;
1869 full_rect.y = 0;
1870 full_rect.w = window->w;
1871 full_rect.h = window->h;
1872 rect = &full_rect;
1873 }
1874
1875 return renderer->RenderWritePixels(renderer, rect, pixels, pitch);
1876 }
1877
1878 void 1815 void
1879 SDL_RenderPresent(void) 1816 SDL_RenderPresent(void)
1880 { 1817 {
1881 SDL_Renderer *renderer; 1818 SDL_Renderer *renderer;
1882 1819
1885 } 1822 }
1886 1823
1887 renderer = SDL_CurrentDisplay.current_renderer; 1824 renderer = SDL_CurrentDisplay.current_renderer;
1888 if (!renderer || !renderer->RenderPresent) { 1825 if (!renderer || !renderer->RenderPresent) {
1889 return; 1826 return;
1890 }
1891
1892 if (renderer->SelectRenderTexture) {
1893 renderer->SelectRenderTexture(renderer, NULL);
1894 } 1827 }
1895 renderer->RenderPresent(renderer); 1828 renderer->RenderPresent(renderer);
1896 } 1829 }
1897 1830
1898 void 1831 void