1 // Copyright (c) 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 CONTENT_BROWSER_AURA_BROWSER_COMPOSITOR_OUTPUT_SURFACE_PROXY_H_ 6 #define CONTENT_BROWSER_AURA_BROWSER_COMPOSITOR_OUTPUT_SURFACE_PROXY_H_ 7 8 #include "base/id_map.h" 9 #include "base/memory/ref_counted.h" 10 #include "base/time/time.h" 11 12 namespace base { class SingleThreadTaskRunner; } 13 14 namespace IPC { class Message; } 15 16 namespace content { 17 class BrowserCompositorOutputSurface; 18 19 // Directs vsync updates to the appropriate BrowserCompositorOutputSurface. 20 class BrowserCompositorOutputSurfaceProxy 21 : public base::RefCountedThreadSafe<BrowserCompositorOutputSurfaceProxy> { 22 public: 23 BrowserCompositorOutputSurfaceProxy( 24 IDMap<BrowserCompositorOutputSurface>* surface_map); 25 26 // Call this before each OutputSurface is created to ensure that the 27 // proxy is connected to the current host. 28 void ConnectToGpuProcessHost( 29 base::SingleThreadTaskRunner* compositor_thread_task_runner); 30 31 private: 32 friend class base::RefCountedThreadSafe<BrowserCompositorOutputSurfaceProxy>; 33 ~BrowserCompositorOutputSurfaceProxy(); 34 35 void OnMessageReceivedOnCompositorThread(const IPC::Message& message); 36 37 void OnUpdateVSyncParametersOnCompositorThread(int surface_id, 38 base::TimeTicks timebase, 39 base::TimeDelta interval); 40 41 IDMap<BrowserCompositorOutputSurface>* surface_map_; 42 int connected_to_gpu_process_host_id_; 43 44 DISALLOW_COPY_AND_ASSIGN(BrowserCompositorOutputSurfaceProxy); 45 }; 46 47 } // namespace content 48 49 #endif // CONTENT_BROWSER_AURA_BROWSER_COMPOSITOR_OUTPUT_SURFACE_PROXY_H_ 50
