Mesa (master): mesa: expose alpha-ref as a state-variable
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Thu Oct 17 09:26:21 UTC 2019
Module: Mesa
Branch: master
Commit: fdc4450c285d21251a6a1de3f0765a934ea0567c
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=fdc4450c285d21251a6a1de3f0765a934ea0567c
Author: Erik Faye-Lund <erik.faye-lund at collabora.com>
Date: Thu Jul 4 10:07:27 2019 +0200
mesa: expose alpha-ref as a state-variable
Reviewed-by: Marek Olšák <marek.olsak at amd.com>
---
src/mesa/program/prog_statevars.c | 10 ++++++++++
src/mesa/program/prog_statevars.h | 1 +
2 files changed, 11 insertions(+)
diff --git a/src/mesa/program/prog_statevars.c b/src/mesa/program/prog_statevars.c
index 5178b61ec4a..1b35979d633 100644
--- a/src/mesa/program/prog_statevars.c
+++ b/src/mesa/program/prog_statevars.c
@@ -602,6 +602,10 @@ _mesa_fetch_state(struct gl_context *ctx, const gl_state_index16 state[],
ctx->Color.BlendEnabled, ctx->Color._AdvancedBlendMode);
return;
+ case STATE_ALPHA_REF:
+ value[0] = ctx->Color.AlphaRefUnclamped;
+ return;
+
/* XXX: make sure new tokens added here are also handled in the
* _mesa_program_state_flags() switch, below.
*/
@@ -713,6 +717,9 @@ _mesa_program_state_flags(const gl_state_index16 state[STATE_LENGTH])
case STATE_ADVANCED_BLENDING_MODE:
return _NEW_COLOR;
+ case STATE_ALPHA_REF:
+ return _NEW_COLOR;
+
default:
/* unknown state indexes are silently ignored and
* no flag set, since it is handled by the driver.
@@ -919,6 +926,9 @@ append_token(char *dst, gl_state_index k)
case STATE_ADVANCED_BLENDING_MODE:
append(dst, "AdvancedBlendingMode");
break;
+ case STATE_ALPHA_REF:
+ append(dst, "alphaRef");
+ break;
default:
/* probably STATE_INTERNAL_DRIVER+i (driver private state) */
append(dst, "driverState");
diff --git a/src/mesa/program/prog_statevars.h b/src/mesa/program/prog_statevars.h
index f28d2bb4a37..1418f84f630 100644
--- a/src/mesa/program/prog_statevars.h
+++ b/src/mesa/program/prog_statevars.h
@@ -129,6 +129,7 @@ typedef enum gl_state_index_ {
* currently active advanced blending equation, or zero if disabled.
*/
STATE_ADVANCED_BLENDING_MODE,
+ STATE_ALPHA_REF, /* alpha-test reference value */
STATE_INTERNAL_DRIVER /* first available state index for drivers (must be last) */
} gl_state_index;
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