-radeon_mipmap_tree* radeon_miptree_create(radeonContextPtr rmesa, radeonTexObj *t,
- GLenum target, GLuint firstLevel, GLuint lastLevel,
- GLuint width0, GLuint height0, GLuint depth0,
- GLuint bpp, GLuint tilebits, GLuint compressed);
-void radeon_miptree_reference(radeon_mipmap_tree *mt);
-void radeon_miptree_unreference(radeon_mipmap_tree *mt);
+void radeon_miptree_reference(radeon_mipmap_tree *mt, radeon_mipmap_tree **ptr);
+void radeon_miptree_unreference(radeon_mipmap_tree **ptr);