mesa: improved gl_buffer_object reference counting

Use new _mesa_reference_buffer_object() function wherever possible.
Fixes buffer object/display list crash reported in ParaView.

1 files changed, 11 insertions, 5 deletions

diff --git a/src/mesa/vbo/vbo_save.c b/src/mesa/vbo/vbo_save.c
index 8dd87141c0c..9757c3d9f61 100644
--- a/src/mesa/vbo/vbo_save.c
+++ b/src/mesa/vbo/vbo_save.c
@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.3
+ * Version:  7.2
  *
- * Copyright (C) 1999-2005  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -27,6 +27,7 @@
 
 
 #include "main/mtypes.h"
+#include "main/bufferobj.h"
 #include "main/dlist.h"
 #include "main/vtxfmt.h"
 #include "main/imports.h"
@@ -71,19 +72,24 @@ void vbo_save_destroy( GLcontext *ctx )
 {
    struct vbo_context *vbo = vbo_context(ctx);
    struct vbo_save_context *save = &vbo->save;
+   GLuint i;
+
    if (save->prim_store) {
       if ( --save->prim_store->refcount == 0 ) {
          FREE( save->prim_store );
          save->prim_store = NULL;
       }
       if ( --save->vertex_store->refcount == 0 ) {
-         if (save->vertex_store->bufferobj)
-            ctx->Driver.DeleteBuffer( ctx, save->vertex_store->bufferobj );
-
+         _mesa_reference_buffer_object(ctx,
+                                       &save->vertex_store->bufferobj, NULL);
          FREE( save->vertex_store );
          save->vertex_store = NULL;
       }
    }
+
+   for (i = 0; i < VBO_ATTRIB_MAX; i++) {
+      _mesa_reference_buffer_object(ctx, &save->arrays[i].BufferObj, NULL);
+   }
 }