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-rw-r--r--src/mesa/drivers/dri/i915/intel_blit.c5
-rw-r--r--src/mesa/drivers/dri/i965/intel_blit.c5
2 files changed, 6 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/i915/intel_blit.c b/src/mesa/drivers/dri/i915/intel_blit.c
index d4e269dc841..9a68625318a 100644
--- a/src/mesa/drivers/dri/i915/intel_blit.c
+++ b/src/mesa/drivers/dri/i915/intel_blit.c
@@ -271,9 +271,10 @@ intelEmitCopyBlit(struct intel_context *intel,
dst_buffer, dst_pitch, dst_offset, dst_x, dst_y, w, h);
/* Blit pitch must be dword-aligned. Otherwise, the hardware appears to drop
- * the low bits.
+ * the low bits. Offsets must be naturally aligned.
*/
- if (src_pitch % 4 != 0 || dst_pitch % 4 != 0)
+ if (src_pitch % 4 != 0 || src_offset % cpp != 0 ||
+ dst_pitch % 4 != 0 || dst_offset % cpp != 0)
return false;
/* For big formats (such as floating point), do the copy using 16 or 32bpp
diff --git a/src/mesa/drivers/dri/i965/intel_blit.c b/src/mesa/drivers/dri/i965/intel_blit.c
index 8d816718bf0..400d3d3d9e7 100644
--- a/src/mesa/drivers/dri/i965/intel_blit.c
+++ b/src/mesa/drivers/dri/i965/intel_blit.c
@@ -344,9 +344,10 @@ intelEmitCopyBlit(struct brw_context *brw,
dst_buffer, dst_pitch, dst_offset, dst_x, dst_y, w, h);
/* Blit pitch must be dword-aligned. Otherwise, the hardware appears to drop
- * the low bits.
+ * the low bits. Offsets must be naturally aligned.
*/
- if (src_pitch % 4 != 0 || dst_pitch % 4 != 0)
+ if (src_pitch % 4 != 0 || src_offset % cpp != 0 ||
+ dst_pitch % 4 != 0 || dst_offset % cpp != 0)
return false;
/* For big formats (such as floating point), do the copy using 16 or 32bpp