From d46779103b38aeab61701759ed7a0b30cc71c0ef Mon Sep 17 00:00:00 2001
From: Brian <brian.paul@tungstengraphics.com>
Date: Mon, 13 Aug 2007 15:21:01 -0600
Subject: [PATCH] check if we have a zbuf before enabling depth_test stage

---
 src/mesa/pipe/softpipe/sp_quad.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mesa/pipe/softpipe/sp_quad.c b/src/mesa/pipe/softpipe/sp_quad.c
index 0053b16e683..0f0736479f2 100644
--- a/src/mesa/pipe/softpipe/sp_quad.c
+++ b/src/mesa/pipe/softpipe/sp_quad.c
@@ -48,7 +48,8 @@ sp_build_quad_pipeline(struct softpipe_context *sp)
       sp->quad.stencil_test->next = sp->quad.first;
       sp->quad.first = sp->quad.stencil_test;
    }
-   else if (sp->depth_test.enabled) {
+   else if (sp->depth_test.enabled &&
+            sp->framebuffer.zbuf) {
       sp->quad.depth_test->next = sp->quad.first;
       sp->quad.first = sp->quad.depth_test;
    }
-- 
2.30.2