SDL_RWFromMem 関連する関数を追加

[sdl2referencejp/sdl2referencejp.git] / SDL_CreateTextureFromSurface.html

diff --git a/SDL_CreateTextureFromSurface.html b/SDL_CreateTextureFromSurface.html
index 00363f0..07ba507 100644 (file)
--- a/SDL_CreateTextureFromSurface.html
+++ b/SDL_CreateTextureFromSurface.html
@@ -23,8 +23,51 @@
 <h2>\96ß\82è\92l</h2>\r
 \90¬\8c÷\82Ì\82Æ\82«\90¶\90¬\82³\82ê\82½\83e\83N\83X\83`\83\83, \8e¸\94s\82Ì\82Æ\82«0\82ð\96ß\82·.\r
 <a href="SDL_GetError.html">SDL_GetError()</a>\82Å\8fÚ\8d×\82ð\92m\82é\82±\82Æ\82ª\82Å\82«\82é.\r
+<h2>\83T\83\93\83v\83\8b\83R\81[\83h</h2>\r
+<p>\r
+<code>\r
+<pre>\r
+    /* OpenGL\82Ì\83e\83N\83X\83`\83\83\82Æ\82µ\82Ä\8eg\82¤\82½\82ß\82É\r
+       \8ae\83s\83N\83Z\83\8b\82ªR,G,B,A\8f\87\82Ì32bit\83T\81[\83t\83F\83C\83X\82ð\90¶\90¬\82·\82é */\r
+    SDL_Surface *surface;\r
+    Uint32 rmask, gmask, bmask, amask;\r
+\r
+    /* SDL\82Í\83s\83N\83Z\83\8b\82ð32bit\82Ì\92l\82Æ\82µ\82Ä\89ð\8eß\82·\82é.\r
+       \82æ\82Á\82Ä, \83}\83X\83N\82Í\83}\83V\83\93\82Ì\83G\83\93\83f\83B\83A\83\93(\83o\83C\83g\8f\87)\82É\88Ë\91¶\82·\82é */\r
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN\r
+    rmask = 0xff000000;\r
+    gmask = 0x00ff0000;\r
+    bmask = 0x0000ff00;\r
+    amask = 0x000000ff;\r
+#else\r
+    rmask = 0x000000ff;\r
+    gmask = 0x0000ff00;\r
+    bmask = 0x00ff0000;\r
+    amask = 0xff000000;\r
+#endif\r
+\r
+    surface = SDL_CreateRGBSurface(0, width, height, 32,\r
+                                   rmask, gmask, bmask, amask);\r
+    if(surface == NULL) {\r
+        fprintf(stderr, "CreateRGBSurface \8e¸\94s: %s\n", SDL_GetError());\r
+        exit(1);\r
+    }\r
+\r
+    SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer, surface);\r
+    \r
+    if (texture == NULL) {\r
+        fprintf(stderr, "CreateTextureFromSurface failed: %s\n", SDL_GetError());\r
+        exit(1);\r
+    }\r
+    \r
+    SDL_FreeSurface(surface);\r
+    surface = NULL;\r
+\r
+</pre>\r
+</code>\r
+</p>\r
 <h2>\8fÚ\8d×</h2>\r
-\83T\81[\83t\83F\83C\83X\82ð\8fC\90³\82Ü\82½\82Í\89ð\95ú\82µ\82Ä\82Í\82È\82ç\82È\82¢.\r
+\82±\82Ì\8aÖ\90\94\82Í\83T\81[\83t\83F\83C\83X\82ð\8fC\90³/\89ð\95ú\82µ\82È\82¢.\r
 \82±\82Ì\83e\83N\83X\83`\83\83\82Ì<a href="SDL_TextureAccess.html">SDL_TextureAccess</a>\83q\83\93\83g\82ÍSDL_TEXTUREACCESS_STATIC\82Å\82 \82é.\r
 <h2>\8aÖ\98A\8d\80\96Ú(\8aÖ\90\94)</h2>\r
 <a href="SDL_CreateTexture.html">SDL_CreateTexture</a><br>\r