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-rw-r--r--src/mesa/drivers/dri/i965/intel_blit.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/intel_blit.c b/src/mesa/drivers/dri/i965/intel_blit.c
index 9184ad62e34..46fccc8d6ce 100644
--- a/src/mesa/drivers/dri/i965/intel_blit.c
+++ b/src/mesa/drivers/dri/i965/intel_blit.c
@@ -420,6 +420,10 @@ can_fast_copy_blit(struct brw_context *brw,
dst_tr_mode == INTEL_MIPTREE_TRMODE_NONE)
return false;
+ /* The start pixel for Fast Copy blit should be on an OWord boundary. */
+ if ((dst_x * cpp | src_x * cpp) & 15)
+ return false;
+
/* For all surface types buffers must be cacheline-aligned. */
if ((dst_offset | src_offset) & 63)
return false;