Quartz: locking should only recheck CGDisplayBaseAddress() for HWSURF…

…ACEs.
libsdl-org · Jul 17, 2011 · 33f4f73 · 33f4f73
1 parent 8ac7e0f
commit 33f4f73
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/video/quartz/SDL_QuartzVideo.m b/src/video/quartz/SDL_QuartzVideo.m
@@ -1252,7 +1252,7 @@ static int  QZ_LockHWSurface(_THIS, SDL_Surface *surface)
      * Always get latest bitmap address and rowbytes for the screen surface;
      *  they can change dynamically (user has multiple monitors, etc).
      */
-    if (surface == SDL_VideoSurface) {
+    if ((surface == SDL_VideoSurface) && (surface->flags & SDL_HWSURFACE)) {
         surface->pixels = (void*) CGDisplayBaseAddress (kCGDirectMainDisplay);
         surface->pitch  = CGDisplayBytesPerRow (kCGDirectMainDisplay);
         return (surface->pixels != NULL);