---
src/mesa/drivers/dri/intel/intel_blit.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/intel/intel_blit.c
b/src/mesa/drivers/dri/intel/intel_blit.c
index def226c..8d7693d 100644
--- a/src/mesa/drivers/dri/intel/intel_blit.c
+++ b/src/mesa/drivers/dri/intel/intel_blit.c
@@ -146,6 +146,12 @@ intelEmitCopyBlit(struct intel_context *intel,
src_pitch *= cpp;
dst_pitch *= cpp;
+ /* Blit pitch must be dword-aligned. Otherwise, the hardware appears to
drop
+ * the low bits.
+ */
+ assert(src_pitch % 4 == 0);
+ assert(dst_pitch % 4 == 0);
+
/* For big formats (such as floating point), do the copy using 32bpp and
* multiply the coordinates.
*/
--
1.7.7
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