Module: Mesa
Branch: master
Commit: 827393b76fffa352e0ff3cae077c7817d6cfbf8a
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=827393b76fffa352e0ff3cae077c7817d6cfbf8a
Author: Dave Airlie <airl...@redhat.com>
Date: Tue Mar 22 07:50:37 2016 +1000
tgsi: introduce NonHelperMask
This is a mask of which of the current 2x2 grid are non-helper
invocations. This allows us to mask off the helper invocations
later for the image operations.
Reviewed-by: Brian Paul <bri...@vmware.com>
Signed-off-by: Dave Airlie <airl...@redhat.com>
---
src/gallium/auxiliary/tgsi/tgsi_exec.c | 2 ++
src/gallium/auxiliary/tgsi/tgsi_exec.h | 3 +++
2 files changed, 5 insertions(+)
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c
b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index a44a05c..fa1c916 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -5199,6 +5199,8 @@ tgsi_exec_machine_run( struct tgsi_exec_machine *mach )
default_mask = 0x1;
}
+ if (mach->NonHelperMask == 0)
+ mach->NonHelperMask = default_mask;
mach->CondMask = default_mask;
mach->LoopMask = default_mask;
mach->ContMask = default_mask;
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.h
b/src/gallium/auxiliary/tgsi/tgsi_exec.h
index 8b5a580..6bcf45b 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.h
@@ -312,6 +312,9 @@ struct tgsi_exec_machine
struct tgsi_exec_vector QuadPos;
float Face; /**< +1 if front facing, -1 if back
facing */
bool flatshade_color;
+
+ /* See GLSL 4.50 specification for definition of helper invocations */
+ uint NonHelperMask; /**< non-helpers */
/* Conditional execution masks */
uint CondMask; /**< For IF/ELSE/ENDIF */
uint LoopMask; /**< For BGNLOOP/ENDLOOP */
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