Home | History | Annotate | Download | only in compositor 
      1 // Copyright 2014 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_COMPOSITOR_BROWSER_COMPOSITOR_OUTPUT_SURFACE_PROXY_H_
      6 #define CONTENT_BROWSER_COMPOSITOR_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 #include "content/common/content_export.h"
     12 
     13 namespace base { class SingleThreadTaskRunner; }
     14 
     15 namespace IPC { class Message; }
     16 
     17 namespace content {
     18 class BrowserCompositorOutputSurface;
     19 
     20 // Directs vsync updates to the appropriate BrowserCompositorOutputSurface.
     21 class CONTENT_EXPORT BrowserCompositorOutputSurfaceProxy
     22     : public base::RefCountedThreadSafe<BrowserCompositorOutputSurfaceProxy> {
     23  public:
     24   BrowserCompositorOutputSurfaceProxy(
     25       IDMap<BrowserCompositorOutputSurface>* surface_map);
     26 
     27   // Call this before each OutputSurface is created to ensure that the
     28   // proxy is connected to the current host.
     29   void ConnectToGpuProcessHost(
     30       base::SingleThreadTaskRunner* compositor_thread_task_runner);
     31 
     32  private:
     33   friend class base::RefCountedThreadSafe<BrowserCompositorOutputSurfaceProxy>;
     34   friend class SoftwareBrowserCompositorOutputSurface;
     35   ~BrowserCompositorOutputSurfaceProxy();
     36 
     37   void OnMessageReceivedOnCompositorThread(const IPC::Message& message);
     38 
     39   void OnUpdateVSyncParametersOnCompositorThread(int surface_id,
     40                                                  base::TimeTicks timebase,
     41                                                  base::TimeDelta interval);
     42 
     43   IDMap<BrowserCompositorOutputSurface>* surface_map_;
     44   int connected_to_gpu_process_host_id_;
     45 
     46   DISALLOW_COPY_AND_ASSIGN(BrowserCompositorOutputSurfaceProxy);
     47 };
     48 
     49 }  // namespace content
     50 
     51 #endif  // CONTENT_BROWSER_COMPOSITOR_BROWSER_COMPOSITOR_OUTPUT_SURFACE_PROXY_H_
     52