| // Copyright 2016 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 CC_BLIMP_REMOTE_COMPOSITOR_BRIDGE_H_ |
| #define CC_BLIMP_REMOTE_COMPOSITOR_BRIDGE_H_ |
| |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/single_thread_task_runner.h" |
| #include "cc/base/cc_export.h" |
| |
| namespace cc { |
| |
| class CompositorProtoState; |
| class RemoteCompositorBridgeClient; |
| |
| // The RemoteCompositorBridge is the remote LTH's communication bridge to the |
| // compositor on the client that consumes the CompositorProtoState updates and |
| // performs the actual compositing work. It is responsible for scheduling |
| // when a state update should be sent to the client and providing back |
| // mutations made to the state on the client. |
| class CC_EXPORT RemoteCompositorBridge { |
| public: |
| RemoteCompositorBridge( |
| scoped_refptr<base::SingleThreadTaskRunner> compositor_main_task_runner); |
| |
| virtual ~RemoteCompositorBridge(); |
| |
| // Must be called exactly once before the RemoteCompositorBridge can be |
| // used. Once bound, the client is expected to outlive this class. |
| virtual void BindToClient(RemoteCompositorBridgeClient* client) = 0; |
| |
| // Notifies the bridge that a main frame update is required. |
| virtual void ScheduleMainFrame() = 0; |
| |
| // If a main frame update results in any mutations to the compositor state, |
| // the serialized compositor state is provided to the |
| // RemoteCompositorBridge. |
| virtual void ProcessCompositorStateUpdate( |
| std::unique_ptr<CompositorProtoState> compositor_proto_state) = 0; |
| |
| protected: |
| // The task runner for the compositor's main thread. The |
| // RemoteCompositorBridgeClient must be called on this task runner. |
| scoped_refptr<base::SingleThreadTaskRunner> compositor_main_task_runner_; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(RemoteCompositorBridge); |
| }; |
| |
| } // namespace cc |
| |
| #endif // CC_BLIMP_REMOTE_COMPOSITOR_BRIDGE_H_ |