On 8 April 2013 19:27, Kenneth Graunke <kenn...@whitecape.org> wrote:
> 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> > This patch regresses piglit test "spec/!OpenGL 1.2/tex3d-maxsize" for me (on Gen7). > --- > 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 > > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/mesa-dev >
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