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-rw-r--r--glamor/glamor_render.c27
1 files changed, 15 insertions, 12 deletions
diff --git a/glamor/glamor_render.c b/glamor/glamor_render.c
index 165bcede6..64141ac0f 100644
--- a/glamor/glamor_render.c
+++ b/glamor/glamor_render.c
@@ -1424,18 +1424,21 @@ glamor_composite_clipped_region(CARD8 op,
if (!mask && !source->alphaMap && !dest->alphaMap
&& source->pDrawable && !source->transform
&& ((op == PictOpSrc
- && ((source->format == dest->format
- || (PICT_FORMAT_COLOR(dest->format)
- && PICT_FORMAT_COLOR(source->format)
- && dest->format == PICT_FORMAT(PICT_FORMAT_BPP(source->format),
- PICT_FORMAT_TYPE(source->format),
- 0,
- PICT_FORMAT_R(source->format),
- PICT_FORMAT_G(source->format),
- PICT_FORMAT_B(source->format))))
- || (op == PictOpOver
- && source->format == dest->format
- && !PICT_FORMAT_A(source->format)))))) {
+ && (source->format == dest->format
+ || (PICT_FORMAT_COLOR(dest->format)
+ && PICT_FORMAT_COLOR(source->format)
+ && dest->format == PICT_FORMAT(PICT_FORMAT_BPP(source->format),
+ PICT_FORMAT_TYPE(source->format),
+ 0,
+ PICT_FORMAT_R(source->format),
+ PICT_FORMAT_G(source->format),
+ PICT_FORMAT_B(source->format)))))
+ || (op == PictOpOver
+ && source->format == dest->format
+ && !PICT_FORMAT_A(source->format)))
+ && x_source >= 0 && y_source >= 0
+ && (x_source + width) <= source->pDrawable->width
+ && (y_source + height) <= source->pDrawable->height) {
x_source += source->pDrawable->x;
y_source += source->pDrawable->y;
x_dest += dest->pDrawable->x;