Mercurial > sdl-ios-xcode

comparison src/video/SDL_video.c @ 1985:8055185ae4ed

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added source color and alpha modulation support. Added perl script to generate optimized render copy functions.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 28 Aug 2006 03:17:39 +0000
parents 3f21778e7433
children da8332c8f480
comparison
equal deleted inserted replaced
1984:b910bcabec26 1985:8055185ae4ed
1508 texture->id = _this->next_object_id++; 1508 texture->id = _this->next_object_id++;
1509 texture->format = format; 1509 texture->format = format;
1510 texture->access = access; 1510 texture->access = access;
1511 texture->w = w; 1511 texture->w = w;
1512 texture->h = h; 1512 texture->h = h;
1513 texture->r = 255;
1514 texture->g = 255;
1515 texture->b = 255;
1516 texture->a = 255;
1513 texture->renderer = renderer; 1517 texture->renderer = renderer;
1514 1518
1515 if (renderer->CreateTexture(renderer, texture) < 0) { 1519 if (renderer->CreateTexture(renderer, texture) < 0) {
1516 if (renderer->DestroyTexture) { 1520 if (renderer->DestroyTexture) {
1517 renderer->DestroyTexture(renderer, texture); 1521 renderer->DestroyTexture(renderer, texture);
1770 return renderer->GetTexturePalette(renderer, texture, colors, firstcolor, 1774 return renderer->GetTexturePalette(renderer, texture, colors, firstcolor,
1771 ncolors); 1775 ncolors);
1772 } 1776 }
1773 1777
1774 int 1778 int
1779 SDL_SetTextureColorMod(SDL_TextureID textureID, Uint8 r, Uint8 g, Uint8 b)
1780 {
1781 SDL_Texture *texture = SDL_GetTextureFromID(textureID);
1782 SDL_Renderer *renderer;
1783
1784 if (!texture) {
1785 return -1;
1786 }
1787
1788 renderer = texture->renderer;
1789 if (!renderer->SetTextureColorMod) {
1790 return -1;
1791 }
1792 if (r < 255 | g < 255 | b < 255) {
1793 texture->modMode |= SDL_TEXTUREMODULATE_COLOR;
1794 } else {
1795 texture->modMode &= ~SDL_TEXTUREMODULATE_COLOR;
1796 }
1797 texture->r = r;
1798 texture->g = g;
1799 texture->b = b;
1800 return renderer->SetTextureColorMod(renderer, texture);
1801 }
1802
1803 int
1804 SDL_GetTextureColorMod(SDL_TextureID textureID, Uint8 * r, Uint8 * g,
1805 Uint8 * b)
1806 {
1807 SDL_Texture *texture = SDL_GetTextureFromID(textureID);
1808 SDL_Renderer *renderer;
1809
1810 if (!texture) {
1811 return -1;
1812 }
1813
1814 renderer = texture->renderer;
1815 if (r) {
1816 *r = texture->r;
1817 }
1818 if (g) {
1819 *g = texture->g;
1820 }
1821 if (b) {
1822 *b = texture->b;
1823 }
1824 return 0;
1825 }
1826
1827 int
1828 SDL_SetTextureAlphaMod(SDL_TextureID textureID, Uint8 alpha)
1829 {
1830 SDL_Texture *texture = SDL_GetTextureFromID(textureID);
1831 SDL_Renderer *renderer;
1832
1833 if (!texture) {
1834 return -1;
1835 }
1836
1837 renderer = texture->renderer;
1838 if (!renderer->SetTextureAlphaMod) {
1839 return -1;
1840 }
1841 if (alpha < 255) {
1842 texture->modMode |= SDL_TEXTUREMODULATE_ALPHA;
1843 } else {
1844 texture->modMode &= ~SDL_TEXTUREMODULATE_ALPHA;
1845 }
1846 texture->a = alpha;
1847 return renderer->SetTextureAlphaMod(renderer, texture);
1848 }
1849
1850 int
1851 SDL_GetTextureAlphaMod(SDL_TextureID textureID, Uint8 * alpha)
1852 {
1853 SDL_Texture *texture = SDL_GetTextureFromID(textureID);
1854 SDL_Renderer *renderer;
1855
1856 if (!texture) {
1857 return -1;
1858 }
1859
1860 if (alpha) {
1861 *alpha = texture->a;
1862 }
1863 return 0;
1864 }
1865
1866 int
1867 SDL_SetTextureBlendMode(SDL_TextureID textureID, int blendMode)
1868 {
1869 SDL_Texture *texture = SDL_GetTextureFromID(textureID);
1870 SDL_Renderer *renderer;
1871
1872 if (!texture) {
1873 return -1;
1874 }
1875
1876 renderer = texture->renderer;
1877 if (!renderer->SetTextureBlendMode) {
1878 return -1;
1879 }
1880 texture->blendMode = blendMode;
1881 return renderer->SetTextureBlendMode(renderer, texture);
1882 }
1883
1884 int
1885 SDL_GetTextureBlendMode(SDL_TextureID textureID, int *blendMode)
1886 {
1887 SDL_Texture *texture = SDL_GetTextureFromID(textureID);
1888 SDL_Renderer *renderer;
1889
1890 if (!texture) {
1891 return -1;
1892 }
1893
1894 if (blendMode) {
1895 *blendMode = texture->blendMode;
1896 }
1897 return 0;
1898 }
1899
1900 int
1901 SDL_SetTextureScaleMode(SDL_TextureID textureID, int scaleMode)
1902 {
1903 SDL_Texture *texture = SDL_GetTextureFromID(textureID);
1904 SDL_Renderer *renderer;
1905
1906 if (!texture) {
1907 return -1;
1908 }
1909
1910 renderer = texture->renderer;
1911 if (!renderer->SetTextureScaleMode) {
1912 return -1;
1913 }
1914 texture->scaleMode = scaleMode;
1915 return renderer->SetTextureScaleMode(renderer, texture);
1916 }
1917
1918 int
1919 SDL_GetTextureScaleMode(SDL_TextureID textureID, int *scaleMode)
1920 {
1921 SDL_Texture *texture = SDL_GetTextureFromID(textureID);
1922 SDL_Renderer *renderer;
1923
1924 if (!texture) {
1925 return -1;
1926 }
1927
1928 if (scaleMode) {
1929 *scaleMode = texture->scaleMode;
1930 }
1931 return 0;
1932 }
1933
1934 int
1775 SDL_UpdateTexture(SDL_TextureID textureID, const SDL_Rect * rect, 1935 SDL_UpdateTexture(SDL_TextureID textureID, const SDL_Rect * rect,
1776 const void *pixels, int pitch) 1936 const void *pixels, int pitch)
1777 { 1937 {
1778 SDL_Texture *texture = SDL_GetTextureFromID(textureID); 1938 SDL_Texture *texture = SDL_GetTextureFromID(textureID);
1779 SDL_Renderer *renderer; 1939 SDL_Renderer *renderer;
1862 } 2022 }
1863 renderer->DirtyTexture(renderer, texture, numrects, rects); 2023 renderer->DirtyTexture(renderer, texture, numrects, rects);
1864 } 2024 }
1865 2025
1866 int 2026 int
1867 SDL_RenderFill(const SDL_Rect * rect, Uint32 color) 2027 SDL_RenderFill(Uint8 r, Uint8 g, Uint8 b, Uint8 a, const SDL_Rect * rect)
1868 { 2028 {
1869 SDL_Renderer *renderer; 2029 SDL_Renderer *renderer;
1870 SDL_Window *window; 2030 SDL_Window *window;
1871 SDL_Rect real_rect; 2031 SDL_Rect real_rect;
1872 2032
1889 if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) { 2049 if (!SDL_IntersectRect(rect, &real_rect, &real_rect)) {
1890 return 0; 2050 return 0;
1891 } 2051 }
1892 } 2052 }
1893 2053
1894 return renderer->RenderFill(renderer, &real_rect, color); 2054 return renderer->RenderFill(renderer, r, g, b, a, &real_rect);
1895 } 2055 }
1896 2056
1897 int 2057 int
1898 SDL_RenderCopy(SDL_TextureID textureID, const SDL_Rect * srcrect, 2058 SDL_RenderCopy(SDL_TextureID textureID, const SDL_Rect * srcrect,
1899 const SDL_Rect * dstrect, int blendMode, int scaleMode) 2059 const SDL_Rect * dstrect)
1900 { 2060 {
1901 SDL_Texture *texture = SDL_GetTextureFromID(textureID); 2061 SDL_Texture *texture = SDL_GetTextureFromID(textureID);
1902 SDL_Renderer *renderer; 2062 SDL_Renderer *renderer;
1903 SDL_Window *window; 2063 SDL_Window *window;
1904 SDL_Rect real_srcrect; 2064 SDL_Rect real_srcrect;
1930 real_dstrect.w = window->w; 2090 real_dstrect.w = window->w;
1931 real_dstrect.h = window->h; 2091 real_dstrect.h = window->h;
1932 } 2092 }
1933 2093
1934 return renderer->RenderCopy(renderer, texture, &real_srcrect, 2094 return renderer->RenderCopy(renderer, texture, &real_srcrect,
1935 &real_dstrect, blendMode, scaleMode); 2095 &real_dstrect);
1936 } 2096 }
1937 2097
1938 void 2098 void
1939 SDL_RenderPresent(void) 2099 SDL_RenderPresent(void)
1940 { 2100 {