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Diffstat (limited to 'src/mesa/drivers/dri/i965')
-rw-r--r--src/mesa/drivers/dri/i965/intel_mipmap_tree.c24
1 files changed, 19 insertions, 5 deletions
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index 05dc291d847..a169c41790e 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -194,8 +194,8 @@ intel_tiling_supports_non_msrt_mcs(struct brw_context *brw, unsigned tiling)
* 64bpp, and 128bpp.
*/
static bool
-intel_miptree_is_fast_clear_capable(struct brw_context *brw,
- struct intel_mipmap_tree *mt)
+intel_miptree_supports_non_msrt_fast_clear(struct brw_context *brw,
+ struct intel_mipmap_tree *mt)
{
/* MCS support does not exist prior to Gen7 */
if (brw->gen < 7)
@@ -204,6 +204,10 @@ intel_miptree_is_fast_clear_capable(struct brw_context *brw,
if (mt->disable_aux_buffers)
return false;
+ /* This function applies only to non-multisampled render targets. */
+ if (mt->num_samples > 1)
+ return false;
+
/* MCS is only supported for color buffers */
switch (_mesa_get_format_base_format(mt->format)) {
case GL_DEPTH_COMPONENT:
@@ -222,7 +226,16 @@ intel_miptree_is_fast_clear_capable(struct brw_context *brw,
return false;
}
+
+ /* Check for layered surfaces. */
if (mt->physical_depth0 != 1) {
+ /* Multisample surfaces with the CMS layout are not layered surfaces,
+ * yet still have physical_depth0 > 1. Assert that we don't
+ * accidentally reject a multisampled surface here. We should have
+ * rejected it earlier by explicitly checking the sample count.
+ */
+ assert(mt->num_samples <= 1);
+
if (brw->gen >= 8) {
perf_debug("Layered fast clear - giving up. (%dx%d%d)\n",
mt->logical_width0, mt->logical_height0,
@@ -494,7 +507,7 @@ intel_miptree_create_layout(struct brw_context *brw,
* 7 | ? | ?
* 6 | ? | ?
*/
- if (intel_miptree_is_fast_clear_capable(brw, mt)) {
+ if (intel_miptree_supports_non_msrt_fast_clear(brw, mt)) {
if (brw->gen >= 9 || (brw->gen == 8 && num_samples <= 1))
layout_flags |= MIPTREE_LAYOUT_FORCE_HALIGN16;
} else if (brw->gen >= 9 && num_samples > 1) {
@@ -692,7 +705,7 @@ intel_miptree_create(struct brw_context *brw,
* clear actually occurs.
*/
if (intel_tiling_supports_non_msrt_mcs(brw, mt->tiling) &&
- intel_miptree_is_fast_clear_capable(brw, mt)) {
+ intel_miptree_supports_non_msrt_fast_clear(brw, mt)) {
mt->fast_clear_state = INTEL_FAST_CLEAR_STATE_RESOLVED;
assert(brw->gen < 8 || mt->halign == 16 || num_samples <= 1);
}
@@ -800,8 +813,9 @@ intel_update_winsys_renderbuffer_miptree(struct brw_context *intel,
* clear actually occurs.
*/
if (intel_tiling_supports_non_msrt_mcs(intel, singlesample_mt->tiling) &&
- intel_miptree_is_fast_clear_capable(intel, singlesample_mt))
+ intel_miptree_supports_non_msrt_fast_clear(intel, singlesample_mt)) {
singlesample_mt->fast_clear_state = INTEL_FAST_CLEAR_STATE_RESOLVED;
+ }
if (num_samples == 0) {
intel_miptree_release(&irb->mt);