From: Chia-I Wu <olv@lunarg.com>
Date: Wed, 4 Aug 2010 06:39:16 +0000 (+0800)
Subject: draw: Mask out vertex flags in GS and stream output.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=f1fc444bb05421404f42e8d08e9085c6fb6ce7a9;p=mesa.git

draw: Mask out vertex flags in GS and stream output.

This fixes out-of-bound access to the vertices.
---

diff --git a/src/gallium/auxiliary/draw/draw_gs.c b/src/gallium/auxiliary/draw/draw_gs.c
index f2535c5a549..4a1013e79a5 100644
--- a/src/gallium/auxiliary/draw/draw_gs.c
+++ b/src/gallium/auxiliary/draw/draw_gs.c
@@ -380,7 +380,7 @@ static void gs_tri_adj(struct draw_geometry_shader *shader,
 
 #define FUNC         gs_run_elts
 #define LOCAL_VARS   const ushort *elts = input_prims->elts;
-#define GET_ELT(idx) (elts[idx])
+#define GET_ELT(idx) (elts[idx] & ~DRAW_PIPE_FLAG_MASK)
 #include "draw_gs_tmp.h"
 
 
diff --git a/src/gallium/auxiliary/draw/draw_pt_so_emit.c b/src/gallium/auxiliary/draw/draw_pt_so_emit.c
index c86bdd99a33..f7f4f24d354 100644
--- a/src/gallium/auxiliary/draw/draw_pt_so_emit.c
+++ b/src/gallium/auxiliary/draw/draw_pt_so_emit.c
@@ -225,7 +225,7 @@ static void so_tri(struct pt_so_emit *so, int i0, int i1, int i2)
 
 #define FUNC         so_run_elts
 #define LOCAL_VARS   const ushort *elts = input_prims->elts;
-#define GET_ELT(idx) (elts[start + (idx)])
+#define GET_ELT(idx) (elts[start + (idx)] & ~DRAW_PIPE_FLAG_MASK)
 #include "draw_so_emit_tmp.h"