From d91e62e9c6ff81c91b83af883281c1e205c6bf35 Mon Sep 17 00:00:00 2001
From: Brian <brian.paul@tungstengraphics.com>
Date: Wed, 12 Mar 2008 18:24:46 -0600
Subject: gallium: in clear_stencil_buffer() check surface format to determine
 stencil clear value

... as we do for the Z and Z+stencil cases
---
 src/mesa/state_tracker/st_cb_clear.c | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'src')

diff --git a/src/mesa/state_tracker/st_cb_clear.c b/src/mesa/state_tracker/st_cb_clear.c
index eae40f2a4f1..cc8a136292d 100644
--- a/src/mesa/state_tracker/st_cb_clear.c
+++ b/src/mesa/state_tracker/st_cb_clear.c
@@ -544,6 +544,15 @@ clear_stencil_buffer(GLcontext *ctx, struct gl_renderbuffer *rb)
 
       /* simple clear of whole buffer */
       GLuint clearValue = ctx->Stencil.Clear;
+
+      switch (strb->surface->format) {
+      case PIPE_FORMAT_S8Z24_UNORM:
+         clearValue <<= 24;
+         break;
+      default:
+         ; /* no-op, stencil value is in least significant bits */
+      }  
+
       ctx->st->pipe->clear(ctx->st->pipe, strb->surface, clearValue);
    }
 }
-- 
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