d3dx9: Black out pixels which are outside the source rect in D3DXLoadSurfaceFromMemory if no stretching is used.
diff --git a/dlls/d3dx9_36/surface.c b/dlls/d3dx9_36/surface.c
index 487f06f..ca4fd25 100644
--- a/dlls/d3dx9_36/surface.c
+++ b/dlls/d3dx9_36/surface.c
@@ -526,6 +526,7 @@
*
* Copies the source buffer to the destination buffer, performing
* any necessary format conversion and color keying.
+ * Pixels outsize the source rect are blacked out.
* Works only for ARGB formats with 1 - 4 bytes per pixel.
*/
static void copy_simple_data(CONST BYTE *src, UINT srcpitch, POINT srcsize, CONST PixelFormatDesc *srcformat,
@@ -555,8 +556,12 @@
srcptr += srcformat->bytes_per_pixel;
destptr += destformat->bytes_per_pixel;
}
+
+ if(srcsize.x < destsize.x) /* black out remaining pixels */
+ ZeroMemory(destptr, destformat->bytes_per_pixel * (destsize.x - srcsize.x));
}
- /* TODO: Black out unused pixels */
+ if(srcsize.y < destsize.y) /* black out remaining pixels */
+ ZeroMemory(dest + srcsize.y * destpitch, destpitch * (destsize.y - srcsize.y));
}
/************************************************************
