re: bug#563. checking in some commented out trace code and a fix so that the in testalpha.c the background only flashes when alpha == 255. The problem that is being

fixed is caused by clearing SDL_COPY_RLE_COLORKEY without setting SDL_COPY_RLE_DESIRED in SDL_UnRELSurface.

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%402746

test/testgl2.c

@@ -24,7 +24,7 @@ static void
 quit(int rc)
 {
     if (context) {
-        SDL_GL_MakeCurrent(0, NULL);
+        /* SDL_GL_MakeCurrent(0, NULL); *//* doesn't do anything */
         SDL_GL_DeleteContext(context);
     }
     CommonQuit(state);