Cleanup for the last checkin

include/SDL_video.h

@@ -176,7 +176,7 @@ typedef enum
     SDL_RENDERER_PRESENTFLIP3 = 0x00000008,     /**< Present uses a flip, rotating between two back buffers and a front buffer */
     SDL_RENDERER_PRESENTDISCARD = 0x00000010,   /**< Present leaves the contents of the backbuffer undefined */
     SDL_RENDERER_PRESENTVSYNC = 0x00000020,     /**< Present is synchronized with the refresh rate */
-    SDL_RENDERER_ACCELERATED = 0x0000040,       /**< The renderer uses hardware acceleration */
+    SDL_RENDERER_ACCELERATED = 0x00000040,      /**< The renderer uses hardware acceleration */
 } SDL_RendererFlags;
 
 /**

src/video/SDL_renderer_gl.c

@@ -587,13 +587,13 @@ SetupTextureUpdate(GL_RenderData * renderdata, SDL_Texture * texture,
 static int
 GL_SetTextureColorMod(SDL_Renderer * renderer, SDL_Texture * texture)
 {
-    return -1;
+    return 0;
 }
 
 static int
 GL_SetTextureAlphaMod(SDL_Renderer * renderer, SDL_Texture * texture)
 {
-    return -1;
+    return 0;
 }
 
 static int