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Diffstat (limited to 'src/mesa/swrast_setup/ss_tritmp.h')
-rw-r--r--src/mesa/swrast_setup/ss_tritmp.h18
1 files changed, 10 insertions, 8 deletions
diff --git a/src/mesa/swrast_setup/ss_tritmp.h b/src/mesa/swrast_setup/ss_tritmp.h
index f6b738d60df..7d1bc234650 100644
--- a/src/mesa/swrast_setup/ss_tritmp.h
+++ b/src/mesa/swrast_setup/ss_tritmp.h
@@ -238,14 +238,16 @@ static void TAG(quadfunc)( GLcontext *ctx, GLuint v0,
{
if (IND & SS_UNFILLED_BIT) {
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- GLubyte ef1 = VB->EdgeFlag[v1];
- GLubyte ef3 = VB->EdgeFlag[v3];
- VB->EdgeFlag[v1] = 0;
- TAG(triangle)( ctx, v0, v1, v3 );
- VB->EdgeFlag[v1] = ef1;
- VB->EdgeFlag[v3] = 0;
- TAG(triangle)( ctx, v1, v2, v3 );
- VB->EdgeFlag[v3] = ef3;
+ if (VB->EdgeFlag) { /* XXX this test shouldn't be needed (bug 12614) */
+ GLubyte ef1 = VB->EdgeFlag[v1];
+ GLubyte ef3 = VB->EdgeFlag[v3];
+ VB->EdgeFlag[v1] = 0;
+ TAG(triangle)( ctx, v0, v1, v3 );
+ VB->EdgeFlag[v1] = ef1;
+ VB->EdgeFlag[v3] = 0;
+ TAG(triangle)( ctx, v1, v2, v3 );
+ VB->EdgeFlag[v3] = ef3;
+ }
} else {
TAG(triangle)( ctx, v0, v1, v3 );
TAG(triangle)( ctx, v1, v2, v3 );