In the past, we preferred X-tiling for color buffers because our BLT
code couldn't handle Y-tiling. However, the BLT paths have been largely
replaced by BLORP on Gen6+, which can handle any kind of tiling.
We hadn't measured any performance improvement in the past, but that's
probably because compressed textures were all uncompressed anyway.
Improves performance in GLB27_TRex_C24Z16_FixedTime by 7.69231%.
Signed-off-by: Kenneth Graunke <kenn...@whitecape.org>
---
src/mesa/drivers/dri/intel/intel_mipmap_tree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c
b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c
index 8dd04be..6a9f08c 100644
--- a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c
@@ -344,7 +344,7 @@ intel_miptree_choose_tiling(struct intel_context *intel,
return I915_TILING_Y;
if (width0 >= 64)
- return I915_TILING_X;
+ return intel->gen >= 6 ? I915_TILING_Y : I915_TILING_X;
return I915_TILING_NONE;
}
--
1.8.1.1
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