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-rw-r--r--src/mesa/tnl/t_vtx_exec.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mesa/tnl/t_vtx_exec.c b/src/mesa/tnl/t_vtx_exec.c
index 57d842f05f..900c4ab6cc 100644
--- a/src/mesa/tnl/t_vtx_exec.c
+++ b/src/mesa/tnl/t_vtx_exec.c
@@ -239,6 +239,11 @@ static GLuint _tnl_copy_vertices( GLcontext *ctx )
return 2;
}
case GL_TRIANGLE_STRIP:
+ /* no parity issue, but need to make sure the tri is not drawn twice */
+ if (nr & 1) {
+ tnl->vtx.prim[tnl->vtx.prim_count-1].count--;
+ }
+ /* fallthrough */
case GL_QUAD_STRIP:
switch (nr) {
case 0: ovf = 0; break;