From 29d9f6b0d263b6ea2f89ea955d53d2671d9a6e43 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Thu, 8 May 2008 17:11:05 -0600
Subject: gallium: no-op st_Bitmap() if width or height is zero

---
 src/mesa/state_tracker/st_cb_bitmap.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src')

diff --git a/src/mesa/state_tracker/st_cb_bitmap.c b/src/mesa/state_tracker/st_cb_bitmap.c
index f816e59104..56ca171a62 100644
--- a/src/mesa/state_tracker/st_cb_bitmap.c
+++ b/src/mesa/state_tracker/st_cb_bitmap.c
@@ -673,6 +673,9 @@ st_Bitmap(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height,
    struct st_context *st = ctx->st;
    struct pipe_texture *pt;
 
+   if (width == 0 || height == 0)
+      return;
+
    st_validate_state(st);
 
    if (!st->bitmap.vs) {
-- 
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