Mesa (master): draw: fix another decompose bug affecting constant interpolated attributes

[Roland Scheidegger]

Module: Mesa
Branch: master
Commit: db3dfcfe90a3d27e6020e0d3642f8ab0330e57be
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=db3dfcfe90a3d27e6020e0d3642f8ab0330e57be

Author: Roland Scheidegger <sroland at vmware.com>
Date:   Wed Dec 10 19:39:19 2014 +0100

draw: fix another decompose bug affecting constant interpolated attributes

Previously the first provoking vertex convention would only be used if
flatshading were enabled. No matter how I look at it that cannot be possibly
correct. Maybe the code getting used was somewhat simpler that way at a time
where there weren't constant interpolated attributes, only flatshading...
(Note that all other places including the decomposition macros already do
the same.)

Reviewed-by: Jose Fonseca <jfonseca at vmware.com>

---

 src/gallium/auxiliary/draw/draw_pt_decompose.h |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/gallium/auxiliary/draw/draw_pt_decompose.h b/src/gallium/auxiliary/draw/draw_pt_decompose.h
index 8637085..0b2522c 100644
--- a/src/gallium/auxiliary/draw/draw_pt_decompose.h
+++ b/src/gallium/auxiliary/draw/draw_pt_decompose.h
@@ -3,7 +3,6 @@
    const boolean quads_flatshade_last =      \
       draw->quads_always_flatshade_last;     \
    const boolean last_vertex_last =          \
-      !(draw->rasterizer->flatshade &&       \
-        draw->rasterizer->flatshade_first);
+      !draw->rasterizer->flatshade_first;
 
 #include "draw_decompose_tmp.h"