From ed30dfa1264ec8875a3162c3c8778bc703bf11d5 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Fri, 3 Mar 2000 17:47:39 +0000
Subject: runtime selectable depth buffer depth

---
 src/mesa/main/dd.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/mesa/main/dd.h')

diff --git a/src/mesa/main/dd.h b/src/mesa/main/dd.h
index 9a10fd0d4b..d2b985f384 100644
--- a/src/mesa/main/dd.h
+++ b/src/mesa/main/dd.h
@@ -1,4 +1,4 @@
-/* $Id: dd.h,v 1.13 2000/03/03 15:38:57 brianp Exp $ */
+/* $Id: dd.h,v 1.14 2000/03/03 17:54:56 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -391,6 +391,8 @@ struct dd_function_table {
    /***
     *** For supporting hardware Z buffers:
     *** Either ALL or NONE of these functions must be implemented!
+    *** NOTE that Each depth value is a 32-bit GLuint.  If the depth
+    *** buffer is less than 32 bits deep then the extra upperbits are zero.
     ***/
 
    void (*WriteDepthSpan)( GLcontext *ctx, GLuint n, GLint x, GLint y,
-- 
cgit v1.2.3