| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CompositingState_h |
| #define CompositingState_h |
| |
| namespace WebCore { |
| |
| enum CompositingState { |
| // The layer paints into its enclosing composited ancestor. |
| NotComposited = 0, |
| |
| // The layer is composited, but its contents still paint into enclosing composited ancestor. |
| // In this state, repaint invalidations must be sent to the enclosing composited ancestor. |
| // Typically this happens when a layer's properties need to be represented in the compositor |
| // output data structures, but it doesn't actually have any other reasons to be composited. |
| HasOwnBackingButPaintsIntoAncestor = 1, |
| |
| PaintsIntoOwnBacking = 2, |
| |
| // In this state, the RenderLayer subtree paints into a backing that is shared by |
| // several RenderLayer subtrees. |
| PaintsIntoGroupedBacking = 3 |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // CompositingState_h |
