Compressing a render target and decompressing it in the same
single-subpass render pass may waste bandwidth. While this may be
beneficial in some circumstances, it does not help in all.
Cc: "13.0 17.0" <mesa-sta...@lists.freedesktop.org>
Signed-off-by: Nanley Chery <nanley.g.ch...@intel.com>
---
src/intel/vulkan/genX_cmd_buffer.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/src/intel/vulkan/genX_cmd_buffer.c
b/src/intel/vulkan/genX_cmd_buffer.c
index a22fb2b6fb..9cde6896bb 100644
--- a/src/intel/vulkan/genX_cmd_buffer.c
+++ b/src/intel/vulkan/genX_cmd_buffer.c
@@ -265,8 +265,10 @@ color_attachment_compute_aux_usage(struct anv_device
*device,
att_state->fast_clear = false;
}
- if (isl_format_supports_lossless_compression(&device->info,
- iview->isl.format)) {
+ /* TODO: Consider using a heuristic to determine if temporarily enabling
+ * CCS_E for this image view would be beneficial.
+ */
+ if (iview->image->aux_usage == ISL_AUX_USAGE_CCS_E) {
att_state->aux_usage = ISL_AUX_USAGE_CCS_E;
att_state->input_aux_usage = ISL_AUX_USAGE_CCS_E;
} else if (att_state->fast_clear) {
--
2.11.0
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