[Mesa-dev] [PATCH 3/8] tgsi: introduce NonHelperMask

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

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.

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 src/gallium/auxiliary/tgsi/tgsi_exec.c | 2 ++
 src/gallium/auxiliary/tgsi/tgsi_exec.h | 2 ++
 2 files changed, 4 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 011c9c3..05ae388 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.h
@@ -317,6 +317,8 @@ struct tgsi_exec_machine
    struct tgsi_exec_vector       QuadPos;
    float                         Face;    /**< +1 if front facing, -1 if back facing */
    bool                          flatshade_color;
+
+   uint NonHelperMask;  /**< non-helpers */
    /* Conditional execution masks */
    uint CondMask;  /**< For IF/ELSE/ENDIF */
    uint LoopMask;  /**< For BGNLOOP/ENDLOOP */
-- 
2.5.0