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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CC_BASE_SWAP_PROMISE_H_ | 5 #ifndef CC_OUTPUT_SWAP_PROMISE_H_ |
6 #define CC_BASE_SWAP_PROMISE_H_ | 6 #define CC_OUTPUT_SWAP_PROMISE_H_ |
7 | 7 |
8 #include "cc/output/compositor_frame_metadata.h" | 8 #include "cc/output/compositor_frame_metadata.h" |
9 | 9 |
10 namespace cc { | 10 namespace cc { |
11 | 11 |
12 // When a change to the compositor's state/invalidation/whatever happens, a | 12 // When a change to the compositor's state/invalidation/whatever happens, a |
13 // Swap Promise can be inserted into LayerTreeHost/LayerTreeImpl, to track | 13 // Swap Promise can be inserted into LayerTreeHost/LayerTreeImpl, to track |
14 // whether the compositor's reply to the new state/invaliadtion/whatever is | 14 // whether the compositor's reply to the new state/invaliadtion/whatever is |
15 // completed in the compositor, i.e. the compositor knows it has been sent | 15 // completed in the compositor, i.e. the compositor knows it has been sent |
16 // to its output or not. | 16 // to its output or not. |
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43 virtual void DidNotSwap(DidNotSwapReason reason) = 0; | 43 virtual void DidNotSwap(DidNotSwapReason reason) = 0; |
44 | 44 |
45 // A non-zero trace id identifies a trace flow object that is embedded in the | 45 // A non-zero trace id identifies a trace flow object that is embedded in the |
46 // swap promise. This can be used for registering additional flow steps to | 46 // swap promise. This can be used for registering additional flow steps to |
47 // visualize the object's path through the system. | 47 // visualize the object's path through the system. |
48 virtual int64 TraceId() const = 0; | 48 virtual int64 TraceId() const = 0; |
49 }; | 49 }; |
50 | 50 |
51 } // namespace cc | 51 } // namespace cc |
52 | 52 |
53 #endif // CC_BASE_SWAP_PROMISE_H_ | 53 #endif // CC_OUTPUT_SWAP_PROMISE_H_ |
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