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-rw-r--r--src/mesa/main/context.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 14446130c1b..2954b455c9f 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1,4 +1,4 @@
-/* $Id: context.c,v 1.64 2000/05/07 20:41:30 brianp Exp $ */
+/* $Id: context.c,v 1.65 2000/05/18 18:12:36 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -216,10 +216,18 @@ _mesa_initialize_visual( GLvisual *vis,
vis->DepthMax = 1;
vis->DepthMaxF = 1.0F;
}
- else {
+ else if (depthBits < 32) {
vis->DepthMax = (1 << depthBits) - 1;
vis->DepthMaxF = (GLfloat) vis->DepthMax;
}
+ else {
+ /* Special case since shift values greater than or equal to the
+ * number of bits in the left hand expression's type are
+ * undefined.
+ */
+ vis->DepthMax = 0xffffffff;
+ vis->DepthMaxF = (GLfloat) vis->DepthMax;
+ }
return GL_TRUE;
}