llvmpipe: set opaque = FALSE if stencil enabled

Fixes occasional bad tiles seen in some demos like progs/demos/reflect.c

diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c
index 2cecf7e097415658815360b27c1aeff09e93be34..921c51fbe84db0cde1c73f361d5de0adafc08587 100644 (file)
--- a/src/gallium/drivers/llvmpipe/lp_state_fs.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_fs.c
@@ -1169,6 +1169,7 @@ llvmpipe_update_fs(struct llvmpipe_context *lp)
    opaque = !key.blend.logicop_enable &&
             !key.blend.rt[0].blend_enable &&
             key.blend.rt[0].colormask == 0xf &&
+            !key.stencil[0].enabled &&
             !key.alpha.enabled &&
             !key.depth.enabled &&
             !key.scissor &&