content/browser/android/in_process/synchronous_compositor_registry.h

   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_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_REGISTRY_H_
   6 #define CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_REGISTRY_H_
   7
   8 #include "base/containers/hash_tables.h"
   9 #include "base/lazy_instance.h"
  10
  11 namespace content {
  12
  13 class SynchronousCompositorExternalBeginFrameSource;
  14 class SynchronousCompositorImpl;
  15 class SynchronousCompositorOutputSurface;
  16
  17 class SynchronousCompositorRegistry {
  18  public:
  19   static SynchronousCompositorRegistry* GetInstance();
  20
  21   void RegisterCompositor(int routing_id,
  22                           SynchronousCompositorImpl* compositor);
  23   void UnregisterCompositor(int routing_id,
  24                             SynchronousCompositorImpl* compositor);
  25   void RegisterBeginFrameSource(
  26       int routing_id,
  27       SynchronousCompositorExternalBeginFrameSource* begin_frame_source);
  28   void UnregisterBeginFrameSource(
  29       int routing_id,
  30       SynchronousCompositorExternalBeginFrameSource* begin_frame_source);
  31   void RegisterOutputSurface(
  32       int routing_id,
  33       SynchronousCompositorOutputSurface* output_surface);
  34   void UnregisterOutputSurface(
  35       int routing_id,
  36       SynchronousCompositorOutputSurface* output_surface);
  37
  38  private:
  39   friend struct base::DefaultLazyInstanceTraits<SynchronousCompositorRegistry>;
  40   SynchronousCompositorRegistry();
  41   ~SynchronousCompositorRegistry();
  42
  43   struct Entry {
  44     SynchronousCompositorImpl* compositor;
  45     SynchronousCompositorExternalBeginFrameSource* begin_frame_source;
  46     SynchronousCompositorOutputSurface* output_surface;
  47
  48     Entry();
  49     bool IsReady();
  50   };
  51
  52   using EntryMap = base::hash_map<int, Entry>;
  53
  54   void CheckIsReady(int routing_id);
  55   void UnregisterObjects(int routing_id);
  56   void RemoveEntryIfNeeded(int routing_id);
  57   bool CalledOnValidThread() const;
  58
  59   EntryMap entry_map_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorRegistry);
  62 };
  63
  64 }  // namespace content
  65
  66 #endif  // CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_REGISTRY_H_