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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_VIDEO_CAPTURE_SCREEN_SCREEN_CAPTURER_FAKE_H_
#define MEDIA_VIDEO_CAPTURE_SCREEN_SCREEN_CAPTURER_FAKE_H_
#include "base/memory/scoped_ptr.h"
#include "media/base/media_export.h"
#include "media/video/capture/screen/screen_capturer.h"
#include "media/video/capture/screen/screen_capturer_helper.h"
namespace media {
// A ScreenCapturerFake generates artificial image for testing purpose.
//
// ScreenCapturerFake is double-buffered as required by ScreenCapturer.
class MEDIA_EXPORT ScreenCapturerFake : public ScreenCapturer {
public:
// ScreenCapturerFake generates a picture of size kWidth x kHeight.
static const int kWidth = 800;
static const int kHeight = 600;
ScreenCapturerFake();
virtual ~ScreenCapturerFake();
// Overridden from ScreenCapturer:
virtual void Start(Delegate* delegate) OVERRIDE;
virtual void Stop() OVERRIDE;
virtual void InvalidateRegion(const SkRegion& invalid_region) OVERRIDE;
virtual void CaptureFrame() OVERRIDE;
private:
// Generates an image in the front buffer.
void GenerateImage();
// Called when the screen configuration is changed.
void ScreenConfigurationChanged();
Delegate* delegate_;
SkISize size_;
int bytes_per_row_;
int box_pos_x_;
int box_pos_y_;
int box_speed_x_;
int box_speed_y_;
ScreenCapturerHelper helper_;
// We have two buffers for the screen images as required by Capturer.
static const int kNumBuffers = 2;
scoped_array<uint8> buffers_[kNumBuffers];
// The current buffer with valid data for reading.
int current_buffer_;
DISALLOW_COPY_AND_ASSIGN(ScreenCapturerFake);
};
} // namespace media
#endif // MEDIA_VIDEO_CAPTURE_SCREEN_SCREEN_CAPTURER_FAKE_H_
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