cc/surfaces/onscreen_display_client.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 CC_SURFACES_ONSCREEN_DISPLAY_CLIENT_H_
   6 #define CC_SURFACES_ONSCREEN_DISPLAY_CLIENT_H_
   7
   8 #include "cc/surfaces/display_client.h"
   9
  10 #include "base/compiler_specific.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/single_thread_task_runner.h"
  14 #include "cc/surfaces/display.h"
  15 #include "cc/surfaces/surfaces_export.h"
  16
  17 class VSyncParameterObserver;
  18
  19 namespace cc {
  20 class BeginFrameSource;
  21 class ContextProvider;
  22 class DisplayScheduler;
  23 class SurfaceManager;
  24 class SurfaceDisplayOutputSurface;
  25
  26 // This class provides a DisplayClient implementation for drawing directly to an
  27 // onscreen context.
  28 class CC_SURFACES_EXPORT OnscreenDisplayClient
  29     : NON_EXPORTED_BASE(DisplayClient) {
  30  public:
  31   OnscreenDisplayClient(
  32       scoped_ptr<OutputSurface> output_surface,
  33       SurfaceManager* manager,
  34       SharedBitmapManager* bitmap_manager,
  35       gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
  36       const RendererSettings& settings,
  37       scoped_refptr<base::SingleThreadTaskRunner> task_runner);
  38   ~OnscreenDisplayClient() override;
  39
  40   bool Initialize();
  41   Display* display() { return display_.get(); }
  42   void set_surface_output_surface(SurfaceDisplayOutputSurface* surface) {
  43     surface_display_output_surface_ = surface;
  44   }
  45
  46   // DisplayClient implementation.
  47   void CommitVSyncParameters(base::TimeTicks timebase,
  48                              base::TimeDelta interval) override;
  49   void OutputSurfaceLost() override;
  50   void SetMemoryPolicy(const ManagedMemoryPolicy& policy) override;
  51
  52   bool output_surface_lost() { return output_surface_lost_; }
  53
  54  protected:
  55   scoped_ptr<OutputSurface> output_surface_;
  56   scoped_ptr<Display> display_;
  57   scoped_ptr<SyntheticBeginFrameSource> synthetic_frame_source_;
  58   scoped_ptr<BackToBackBeginFrameSource> unthrottled_frame_source_;
  59   scoped_ptr<DisplayScheduler> scheduler_;
  60   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
  61   SurfaceDisplayOutputSurface* surface_display_output_surface_;
  62   bool output_surface_lost_;
  63   bool disable_display_vsync_;
  64
  65  private:
  66   DISALLOW_COPY_AND_ASSIGN(OnscreenDisplayClient);
  67 };
  68
  69 }  // namespace cc
  70
  71 #endif  // CC_SURFACES_ONSCREEN_DISPLAY_CLIENT_H_