Mesa (master): st/vega: Require both depth and stencil.

[Chia-I Wu]

Module: Mesa
Branch: master
Commit: 5fdda9d78d7924fecd711c21910879b7a01dab3f
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=5fdda9d78d7924fecd711c21910879b7a01dab3f

Author: Chia-I Wu <olv at lunarg.com>
Date:   Sun Apr 11 01:14:42 2010 +0800

st/vega: Require both depth and stencil.

The implementation requires not only a depth buffer, but also a stencil
buffer.

---

 src/gallium/state_trackers/vega/vg_manager.c |    6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/gallium/state_trackers/vega/vg_manager.c b/src/gallium/state_trackers/vega/vg_manager.c
index 256c237..19a3405 100644
--- a/src/gallium/state_trackers/vega/vg_manager.c
+++ b/src/gallium/state_trackers/vega/vg_manager.c
@@ -32,6 +32,7 @@
 #include "pipe/p_screen.h"
 #include "util/u_memory.h"
 #include "util/u_inlines.h"
+#include "util/u_format.h"
 
 #include "vg_manager.h"
 #include "vg_context.h"
@@ -332,10 +333,7 @@ vg_api_is_visual_supported(struct st_api *stapi,
                            const struct st_visual *visual)
 {
    /* the impl requires a depth/stencil buffer */
-   if (visual->depth_stencil_format == PIPE_FORMAT_NONE)
-      return FALSE;
-
-   return TRUE;
+   return util_format_is_depth_and_stencil(visual->depth_stencil_format);
 }
 
 static st_proc_t