From 858b694b6478c0139fbe4a6da16fc97d99fcf5c4 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Tue, 15 Jan 2002 21:49:57 +0000
Subject: added some missing error checks

---
 src/mesa/swrast/s_drawpix.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'src/mesa/swrast/s_drawpix.c')

diff --git a/src/mesa/swrast/s_drawpix.c b/src/mesa/swrast/s_drawpix.c
index b3a4a7886d..dfe7166880 100644
--- a/src/mesa/swrast/s_drawpix.c
+++ b/src/mesa/swrast/s_drawpix.c
@@ -1,4 +1,4 @@
-/* $Id: s_drawpix.c,v 1.24 2002/01/10 16:54:29 brianp Exp $ */
+/* $Id: s_drawpix.c,v 1.25 2002/01/15 21:49:58 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -560,6 +560,11 @@ draw_stencil_pixels( GLcontext *ctx, GLint x, GLint y,
       return;
    }
 
+   if (ctx->Visual.stencilBits == 0) {
+      _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawPixels(no stencil buffer)");
+      return;
+   }
+
    drawWidth = (width > MAX_WIDTH) ? MAX_WIDTH : width;
 
    for (row = 0; row < height; row++, y++) {
-- 
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