Change behaviour of glDeleteTextures as discussed on ARB list.

glDeleteTexture makes the texture ID immediately free for re-use
while the actual texture object lingers until its reference count goes
to zero (when no longer bound by any rendering context).

diff --git a/src/mesa/main/texobj.c b/src/mesa/main/texobj.c
index 4bbd348..97cd358 100644 (file)
--- a/src/mesa/main/texobj.c
+++ b/src/mesa/main/texobj.c
@@ -5,9 +5,9 @@
 
 /*
  * Mesa 3-D graphics library
- * Version:  6.2
+ * Version:  6.3
  *
- * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2005  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"),
@@ -701,17 +701,14 @@ _mesa_DeleteTextures( GLsizei n, const GLuint *textures)
             }
             ctx->NewState |= _NEW_TEXTURE;
 
-            /* If user hasn't already tried to delete the texture... */
-            if (!delObj->DeletePending) {
-               delObj->DeletePending = GL_TRUE;
-               delObj->RefCount--;
-               ASSERT(delObj->RefCount >= 0);
-            }
-
-            /* See if we can really delete the texture now */
+            /* The texture _name_ is now free for re-use. */
+            _mesa_remove_texture_object(ctx, delObj);
+            /* The actual texture object will not be freed until it's no
+             * longer bound in any context.
+             */
+            delObj->RefCount--;
             if (delObj->RefCount == 0) {
-               ASSERT(delObj->Name != 0); /* Never delete default tex objects */
-               _mesa_remove_texture_object(ctx, delObj);
+               ASSERT(delObj->Name != 0); /* Never delete default tex objs */
                ASSERT(ctx->Driver.DeleteTexture);
                (*ctx->Driver.DeleteTexture)(ctx, delObj);
             }
@@ -892,8 +889,6 @@ _mesa_BindTexture( GLenum target, GLuint texName )
    ASSERT(oldTexObj->RefCount >= 0);
    if (oldTexObj->RefCount == 0) {
       ASSERT(oldTexObj->Name != 0);
-      ASSERT(oldTexObj->DeletePending);
-      _mesa_remove_texture_object(ctx, oldTexObj);
       ASSERT(ctx->Driver.DeleteTexture);
       (*ctx->Driver.DeleteTexture)( ctx, oldTexObj );
    }