commit 1a6baf092b4c31d5fd30c934f1a17d69c9689f12
author Brian <brian@yutani.localnet.net> Tue Mar 06 16:26:02 2007 -0700
committer Brian <brian@yutani.localnet.net> Tue Mar 06 16:26:02 2007 -0700
tree 7aa0ae7ac226ddc95fcd6ba0f4675cbdc93e54c9
parent 955906aa647d0d233b422c979e1ee81dc32abb87

unreference old framebuffer, if needed, in _mesa_reference_framebuffer()

src/mesa/main/framebuffer.c

diff --git a/src/mesa/main/framebuffer.c b/src/mesa/main/framebuffer.c
index c97d2f0..3136a95 100644
--- a/src/mesa/main/framebuffer.c
+++ b/src/mesa/main/framebuffer.c
@@ -253,6 +253,13 @@
                             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);