content/browser/compositor/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 CONTENT_BROWSER_COMPOSITOR_ONSCREEN_DISPLAY_CLIENT_H_
   6 #define CONTENT_BROWSER_COMPOSITOR_ONSCREEN_DISPLAY_CLIENT_H_
   7
   8 #include "cc/surfaces/display_client.h"
   9
  10 #include "base/memory/ref_counted.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/single_thread_task_runner.h"
  13 #include "cc/surfaces/display.h"
  14
  15 namespace cc {
  16 class ContextProvider;
  17 class SurfaceManager;
  18 }
  19
  20 namespace content {
  21
  22 // This class provides a DisplayClient implementation for drawing directly to an
  23 // onscreen context.
  24 class OnscreenDisplayClient : cc::DisplayClient {
  25  public:
  26   OnscreenDisplayClient(
  27       const scoped_refptr<cc::ContextProvider>& onscreen_context_provider,
  28       scoped_ptr<cc::OutputSurface> software_surface,
  29       cc::SurfaceManager* manager,
  30       scoped_refptr<base::SingleThreadTaskRunner> task_runner);
  31   virtual ~OnscreenDisplayClient();
  32
  33   cc::Display* display() { return display_.get(); }
  34
  35   // cc::DisplayClient implementation.
  36   virtual scoped_ptr<cc::OutputSurface> CreateOutputSurface() OVERRIDE;
  37   virtual void DisplayDamaged() OVERRIDE;
  38
  39  private:
  40   void Draw();
  41
  42   scoped_refptr<cc::ContextProvider> onscreen_context_provider_;
  43   scoped_ptr<cc::OutputSurface> software_surface_;
  44   scoped_ptr<cc::Display> display_;
  45   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
  46   bool scheduled_draw_;
  47
  48   base::WeakPtrFactory<OnscreenDisplayClient> weak_ptr_factory_;
  49
  50   DISALLOW_COPY_AND_ASSIGN(OnscreenDisplayClient);
  51 };
  52
  53 }  // namespace content
  54
  55 #endif  // CONTENT_BROWSER_COMPOSITOR_ONSCREEN_DISPLAY_CLIENT_H_