Mesa (master): st/mesa: disable alpha-test, alpha-to-coverage, alpha-to-one for integer FBs
Marek Olšák
mareko at kemper.freedesktop.org
Wed Oct 19 17:51:00 UTC 2016
Module: Mesa
Branch: master
Commit: 54f8efeb022de8686db18c49daf14e6771f0fda1
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=54f8efeb022de8686db18c49daf14e6771f0fda1
Author: Marek Olšák <marek.olsak at amd.com>
Date: Fri Sep 16 22:39:15 2016 +0200
st/mesa: disable alpha-test, alpha-to-coverage, alpha-to-one for integer FBs
v2: rebased
Reviewed-by: Brian Paul <brianp at vmware.com>
---
src/mesa/state_tracker/st_atom_blend.c | 3 ++-
src/mesa/state_tracker/st_atom_depth.c | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/src/mesa/state_tracker/st_atom_blend.c b/src/mesa/state_tracker/st_atom_blend.c
index 76d6a644..b8d65bd 100644
--- a/src/mesa/state_tracker/st_atom_blend.c
+++ b/src/mesa/state_tracker/st_atom_blend.c
@@ -266,7 +266,8 @@ update_blend( struct st_context *st )
blend->dither = ctx->Color.DitherFlag;
if (ctx->Multisample.Enabled &&
- ctx->DrawBuffer->Visual.sampleBuffers > 0) {
+ ctx->DrawBuffer->Visual.sampleBuffers > 0 &&
+ !(ctx->DrawBuffer->_IntegerBuffers & 0x1)) {
/* Unlike in gallium/d3d10 these operations are only performed
* if both msaa is enabled and we have a multisample buffer.
*/
diff --git a/src/mesa/state_tracker/st_atom_depth.c b/src/mesa/state_tracker/st_atom_depth.c
index 267b42c..7092c3f 100644
--- a/src/mesa/state_tracker/st_atom_depth.c
+++ b/src/mesa/state_tracker/st_atom_depth.c
@@ -149,7 +149,8 @@ update_depth_stencil_alpha(struct st_context *st)
}
}
- if (ctx->Color.AlphaEnabled) {
+ if (ctx->Color.AlphaEnabled &&
+ !(ctx->DrawBuffer->_IntegerBuffers & 0x1)) {
dsa->alpha.enabled = 1;
dsa->alpha.func = st_compare_func_to_pipe(ctx->Color.AlphaFunc);
dsa->alpha.ref_value = ctx->Color.AlphaRefUnclamped;
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