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      1 // Copyright 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 REMOTING_HOST_SCREEN_CAPTURER_FAKE_H_
      6 #define REMOTING_HOST_SCREEN_CAPTURER_FAKE_H_
      7 
      8 #include "base/memory/scoped_ptr.h"
      9 #include "media/base/media_export.h"
     10 #include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
     11 #include "third_party/webrtc/modules/desktop_capture/screen_capture_frame_queue.h"
     12 #include "third_party/webrtc/modules/desktop_capture/screen_capturer.h"
     13 
     14 namespace remoting {
     15 
     16 // A ScreenCapturerFake generates artificial image for testing purpose.
     17 //
     18 // ScreenCapturerFake is double-buffered as required by ScreenCapturer.
     19 class ScreenCapturerFake : public webrtc::ScreenCapturer {
     20  public:
     21   // ScreenCapturerFake generates a picture of size kWidth x kHeight.
     22   static const int kWidth = 800;
     23   static const int kHeight = 600;
     24 
     25   ScreenCapturerFake();
     26   virtual ~ScreenCapturerFake();
     27 
     28   // webrtc::DesktopCapturer interface.
     29   virtual void Start(Callback* callback) OVERRIDE;
     30   virtual void Capture(const webrtc::DesktopRegion& rect) OVERRIDE;
     31 
     32   // ScreenCapturer interface.
     33   virtual void SetMouseShapeObserver(
     34       MouseShapeObserver* mouse_shape_observer) OVERRIDE;
     35   virtual bool GetScreenList(ScreenList* screens) OVERRIDE;
     36   virtual bool SelectScreen(webrtc::ScreenId id) OVERRIDE;
     37 
     38  private:
     39   // Generates an image in the front buffer.
     40   void GenerateImage();
     41 
     42   // Called when the screen configuration is changed.
     43   void ScreenConfigurationChanged();
     44 
     45   Callback* callback_;
     46   MouseShapeObserver* mouse_shape_observer_;
     47 
     48   webrtc::DesktopSize size_;
     49   int bytes_per_row_;
     50   int box_pos_x_;
     51   int box_pos_y_;
     52   int box_speed_x_;
     53   int box_speed_y_;
     54 
     55   webrtc::ScreenCaptureFrameQueue queue_;
     56 
     57   DISALLOW_COPY_AND_ASSIGN(ScreenCapturerFake);
     58 };
     59 
     60 }  // namespace remoting
     61 
     62 #endif  // REMOTING_HOST_SCREEN_CAPTURER_FAKE_H_
     63