1// Copyright 2013 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef CompositingState_h 6#define CompositingState_h 7 8namespace blink { 9 10enum CompositingState { 11 // The layer paints into its enclosing composited ancestor. 12 NotComposited = 0, 13 14 // The layer is composited, but its contents still paint into enclosing composited ancestor. 15 // In this state, paint invalidations must be sent to the enclosing composited ancestor. 16 // Typically this happens when a layer's properties need to be represented in the compositor 17 // output data structures, but it doesn't actually have any other reasons to be composited. 18 HasOwnBackingButPaintsIntoAncestor = 1, 19 20 PaintsIntoOwnBacking = 2, 21 22 // In this state, the RenderLayer subtree paints into a backing that is shared by 23 // several RenderLayer subtrees. 24 PaintsIntoGroupedBacking = 3 25}; 26 27} // namespace blink 28 29#endif // CompositingState_h 30