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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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_SURFACES_COMPOSITOR_FRAME_SINK_SUPPORT_CLIENT_H_ | 5 #ifndef CC_SURFACES_COMPOSITOR_FRAME_SINK_SUPPORT_CLIENT_H_ |
| 6 #define CC_SURFACES_COMPOSITOR_FRAME_SINK_SUPPORT_CLIENT_H_ | 6 #define CC_SURFACES_COMPOSITOR_FRAME_SINK_SUPPORT_CLIENT_H_ |
| 7 | 7 |
| 8 #include "cc/resources/returned_resource.h" | 8 #include "cc/resources/returned_resource.h" |
| 9 | 9 |
| 10 namespace cc { | 10 namespace cc { |
| 11 | 11 |
| 12 struct BeginFrameArgs; | 12 struct BeginFrameArgs; |
| 13 | 13 |
| 14 class CompositorFrameSinkSupportClient { | 14 class CompositorFrameSinkSupportClient : public DisplayClient { |
| 15 public: | 15 public: |
| 16 // Notification that the previous CompositorFrame given to | 16 // Notification that the previous CompositorFrame given to |
| 17 // SubmitCompositorFrame() has been processed and that another frame | 17 // SubmitCompositorFrame() has been processed and that another frame |
| 18 // can be submitted. This provides backpressure from the display compositor | 18 // can be submitted. This provides backpressure from the display compositor |
| 19 // so that frames are submitted only at the rate it can handle them. | 19 // so that frames are submitted only at the rate it can handle them. |
| 20 // TODO(fsamuel): This method ought not be necessary with unified BeginFrame. | 20 // TODO(fsamuel): This method ought not be necessary with unified BeginFrame. |
| 21 // However, there's a fair amount of cleanup and refactoring necessary to get | 21 // However, there's a fair amount of cleanup and refactoring necessary to get |
| 22 // rid of it. | 22 // rid of it. |
| 23 virtual void DidReceiveCompositorFrameAck() = 0; | 23 virtual void DidReceiveCompositorFrameAck() = 0; |
| 24 | 24 |
| 25 // Notification for the client to generate a CompositorFrame. | 25 // Notification for the client to generate a CompositorFrame. |
| 26 virtual void OnBeginFrame(const BeginFrameArgs& args) = 0; | 26 virtual void OnBeginFrame(const BeginFrameArgs& args) = 0; |
| 27 | 27 |
| 28 // Returns resources sent to SubmitCompositorFrame to be reused or freed. | 28 // Returns resources sent to SubmitCompositorFrame to be reused or freed. |
| 29 virtual void ReclaimResources(const ReturnedResourceArray& resources) = 0; | 29 virtual void ReclaimResources(const ReturnedResourceArray& resources) = 0; |
| 30 | 30 |
| 31 // Called when surface is being scheduled for a draw. | 31 // Called when surface is being scheduled for a draw. |
| 32 virtual void WillDrawSurface() = 0; | 32 virtual void WillDrawSurface() = 0; |
| 33 | 33 |
| 34 protected: | 34 protected: |
| 35 virtual ~CompositorFrameSinkSupportClient() {} | 35 ~CompositorFrameSinkSupportClient() override {} |
| 36 }; | 36 }; |
| 37 | 37 |
| 38 } // namespace cc | 38 } // namespace cc |
| 39 | 39 |
| 40 #endif // CC_SURFACES_COMPOSITOR_FRAME_SINK_SUPPORT_CLIENT_H_ | 40 #endif // CC_SURFACES_COMPOSITOR_FRAME_SINK_SUPPORT_CLIENT_H_ |
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