intel_miptree_supports_ccs_e should handle the gen >= 9 requirement and
there's no reason why we can't do CCS_E on window system buffers so long
as we resolve.
---
src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index 415da21..3eac077 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -283,6 +283,9 @@ static bool
intel_miptree_supports_ccs_e(struct brw_context *brw,
const struct intel_mipmap_tree *mt)
{
+ if (brw->gen < 9)
+ return false;
+
/* For now compression is only enabled for integer formats even though
* there exist supported floating point formats also. This is a heuristic
* decision based on current public benchmarks. In none of the cases these
@@ -629,7 +632,6 @@ intel_miptree_choose_aux_usage(struct brw_context *brw,
} else if (intel_tiling_supports_ccs(brw, mt->tiling) &&
intel_miptree_supports_ccs(brw, mt)) {
if (!unlikely(INTEL_DEBUG & DEBUG_NO_RBC) &&
- brw->gen >= 9 && !mt->is_scanout &&
intel_miptree_supports_ccs_e(brw, mt)) {
mt->aux_usage = ISL_AUX_USAGE_CCS_E;
} else {
--
2.5.0.400.gff86faf
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