Don't crash if we are asked to convert a surface to a NULl buffer.

libsdl-org · Feb 25, 2013 · a019815 · a019815
1 parent cd758da
commit a019815
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/src/video/SDL_surface.c b/src/video/SDL_surface.c
@@ -935,6 +935,16 @@ int SDL_ConvertPixels(int width, int height,
     SDL_Rect rect;
     void *nonconst_src = (void *) src;
 
+    /* Check to make sure we are bliting somewhere, so we don't crash */
+    if (!dst) {
+        SDL_InvalidParamError("dst");
+        return -1;
+    }
+    if (!dst_pitch) {
+        SDL_InvalidParamError("dst_pitch");
+        return -1;
+    }
+
     /* Fast path for same format copy */
     if (src_format == dst_format) {
         int bpp;