[Mesa-dev] [PATCH 5/7] i965: Make the CopyImage BLT path bail for stencil images.

[Kenneth Graunke]

The BLT can't handle S8 because it's W-tiled (at least without
additional funny business, and I'm not sure we care).  Disallow
it so it falls back to the CPU path, which works.

Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
---
 src/mesa/drivers/dri/i965/intel_copy_image.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/intel_copy_image.c b/src/mesa/drivers/dri/i965/intel_copy_image.c
index b728df7..a50a780 100644
--- a/src/mesa/drivers/dri/i965/intel_copy_image.c
+++ b/src/mesa/drivers/dri/i965/intel_copy_image.c
@@ -48,6 +48,9 @@ copy_image_with_blitter(struct brw_context *brw,
    if (src_mt->num_samples > 0 || dst_mt->num_samples > 0)
       return false;
 
+   if (src_mt->format == MESA_FORMAT_S_UINT8)
+      return false;
+
    /* According to the Ivy Bridge PRM, Vol1 Part4, section 1.2.1.2 (Graphics
     * Data Size Limitations):
     *
-- 
2.8.2