From 1a6baf092b4c31d5fd30c934f1a17d69c9689f12 Mon Sep 17 00:00:00 2001
From: Brian <brian@yutani.localnet.net>
Date: Tue, 6 Mar 2007 16:26:02 -0700
Subject: unreference old framebuffer, if needed, in
 _mesa_reference_framebuffer()

---
 src/mesa/main/framebuffer.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/mesa/main/framebuffer.c')

diff --git a/src/mesa/main/framebuffer.c b/src/mesa/main/framebuffer.c
index c97d2f0077b..3136a950e08 100644
--- a/src/mesa/main/framebuffer.c
+++ b/src/mesa/main/framebuffer.c
@@ -253,6 +253,13 @@ _mesa_reference_framebuffer(struct gl_framebuffer **ptr,
                             struct gl_framebuffer *fb)
 {
    assert(ptr);
+   if (*ptr == fb) {
+      /* no change */
+      return;
+   }
+   if (*ptr) {
+      _mesa_unreference_framebuffer(ptr);
+   }
    assert(!*ptr);
    assert(fb);
    _glthread_LOCK_MUTEX(fb->Mutex);
-- 
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