Mesa (master): mesa/program: support referencing the clip-space clip-plane state
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Thu Oct 17 09:26:22 UTC 2019
Module: Mesa
Branch: master
Commit: 439f4995916c3be4260217d5b10f450c9b3b3aa7
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=439f4995916c3be4260217d5b10f450c9b3b3aa7
Author: Erik Faye-Lund <erik.faye-lund at collabora.com>
Date: Thu Oct 3 16:53:47 2019 -0400
mesa/program: support referencing the clip-space clip-plane state
Reviewed-by: Marek Olšák <marek.olsak at amd.com>
---
src/mesa/program/prog_statevars.c | 13 +++++++++++++
src/mesa/program/prog_statevars.h | 1 +
2 files changed, 14 insertions(+)
diff --git a/src/mesa/program/prog_statevars.c b/src/mesa/program/prog_statevars.c
index 1b35979d633..54afc1bf678 100644
--- a/src/mesa/program/prog_statevars.c
+++ b/src/mesa/program/prog_statevars.c
@@ -606,6 +606,13 @@ _mesa_fetch_state(struct gl_context *ctx, const gl_state_index16 state[],
value[0] = ctx->Color.AlphaRefUnclamped;
return;
+ case STATE_CLIP_INTERNAL:
+ {
+ const GLuint plane = (GLuint) state[2];
+ COPY_4V(value, ctx->Transform._ClipUserPlane[plane]);
+ }
+ return;
+
/* XXX: make sure new tokens added here are also handled in the
* _mesa_program_state_flags() switch, below.
*/
@@ -720,6 +727,9 @@ _mesa_program_state_flags(const gl_state_index16 state[STATE_LENGTH])
case STATE_ALPHA_REF:
return _NEW_COLOR;
+ case STATE_CLIP_INTERNAL:
+ return _NEW_TRANSFORM | _NEW_PROJECTION;
+
default:
/* unknown state indexes are silently ignored and
* no flag set, since it is handled by the driver.
@@ -929,6 +939,9 @@ append_token(char *dst, gl_state_index k)
case STATE_ALPHA_REF:
append(dst, "alphaRef");
break;
+ case STATE_CLIP_INTERNAL:
+ append(dst, "clipInternal");
+ 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 1418f84f630..de457d1a7f4 100644
--- a/src/mesa/program/prog_statevars.h
+++ b/src/mesa/program/prog_statevars.h
@@ -130,6 +130,7 @@ typedef enum gl_state_index_ {
*/
STATE_ADVANCED_BLENDING_MODE,
STATE_ALPHA_REF, /* alpha-test reference value */
+ STATE_CLIP_INTERNAL, /* similar to STATE_CLIPPLANE, but in clip-space */
STATE_INTERNAL_DRIVER /* first available state index for drivers (must be last) */
} gl_state_index;
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