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-rw-r--r--src/gallium/auxiliary/util/p_util.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/p_util.c b/src/gallium/auxiliary/util/p_util.c
index 2a92f8e408..0e3f082b3e 100644
--- a/src/gallium/auxiliary/util/p_util.c
+++ b/src/gallium/auxiliary/util/p_util.c
@@ -53,6 +53,12 @@ pipe_copy_rect(ubyte * dst,
{
unsigned i;
+ assert(cpp > 0);
+ assert(src_x >= 0);
+ assert(src_y >= 0);
+ assert(dst_x >= 0);
+ assert(dst_y >= 0);
+
dst_pitch *= cpp;
src_pitch *= cpp;
dst += dst_x * cpp;