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-rw-r--r--src/mesa/main/bufferobj.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/mesa/main/bufferobj.h b/src/mesa/main/bufferobj.h
index 174fd608ced..253a386c271 100644
--- a/src/mesa/main/bufferobj.h
+++ b/src/mesa/main/bufferobj.h
@@ -44,6 +44,14 @@ _mesa_bufferobj_mapped(const struct gl_buffer_object *obj)
return obj->Pointer != NULL;
}
+/** Can we not use this buffer while mapped? */
+static inline GLboolean
+_mesa_check_disallowed_mapping(const struct gl_buffer_object *obj)
+{
+ return _mesa_bufferobj_mapped(obj) &&
+ !(obj->AccessFlags & GL_MAP_PERSISTENT_BIT);
+}
+
/**
* Is the given buffer object a user-created buffer object?
* Mesa uses default buffer objects in several places. Default buffers