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// Copyright (c) 2010 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 CHROME_BROWSER_RENDERER_HOST_VIDEO_LAYER_H_
#define CHROME_BROWSER_RENDERER_HOST_VIDEO_LAYER_H_
#include "app/surface/transport_dib.h"
#include "base/scoped_ptr.h"
#include "gfx/size.h"
class RenderProcessHost;
class RenderWidgetHost;
namespace gfx {
class Rect;
}
// Represents a layer of YUV data owned by RenderWidgetHost and composited with
// the backing store. VideoLayer is responsible for converting to RGB as
// needed.
class VideoLayer {
public:
virtual ~VideoLayer();
RenderWidgetHost* render_widget_host() const { return render_widget_host_; }
const gfx::Size& size() { return size_; }
// Copy the incoming bitmap into this video layer. |bitmap| contains YUV
// pixel data in YV12 format and must be the same dimensions as this video
// layer. |bitmap_rect| specifies the absolute position and destination size
// of the bitmap on the backing store.
virtual void CopyTransportDIB(RenderProcessHost* process,
TransportDIB::Id bitmap,
const gfx::Rect& bitmap_rect) = 0;
protected:
// Can only be constructed via subclasses.
VideoLayer(RenderWidgetHost* widget, const gfx::Size& size);
private:
// The owner of this video layer.
RenderWidgetHost* render_widget_host_;
// The size of the video layer.
gfx::Size size_;
DISALLOW_COPY_AND_ASSIGN(VideoLayer);
};
#endif // CHROME_BROWSER_RENDERER_HOST_VIDEO_LAYER_H_
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