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// Copyright 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 CC_VIDEO_LAYER_IMPL_H_
#define CC_VIDEO_LAYER_IMPL_H_
#include "base/callback.h"
#include "base/synchronization/lock.h"
#include "cc/base/cc_export.h"
#include "cc/layer_impl.h"
#include "cc/video_frame_provider.h"
#include "media/base/video_frame.h"
#include "third_party/khronos/GLES2/gl2.h"
#include "ui/gfx/size.h"
#include "ui/gfx/transform.h"
namespace media {
class SkCanvasVideoRenderer;
}
namespace cc {
class LayerTreeHostImpl;
class VideoFrameProviderClientImpl;
class CC_EXPORT VideoLayerImpl : public LayerImpl {
public:
static scoped_ptr<VideoLayerImpl> Create(LayerTreeImpl* tree_impl,
int id,
VideoFrameProvider* provider);
virtual ~VideoLayerImpl();
// LayerImpl implementation.
virtual scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl)
OVERRIDE;
virtual void PushPropertiesTo(LayerImpl* layer) OVERRIDE;
virtual void WillDraw(ResourceProvider* resource_provider) OVERRIDE;
virtual void AppendQuads(QuadSink* quad_sink,
AppendQuadsData* append_quads_data) OVERRIDE;
virtual void DidDraw(ResourceProvider* resource_provider) OVERRIDE;
virtual void DidBecomeActive() OVERRIDE;
virtual void DidLoseOutputSurface() OVERRIDE;
void SetNeedsRedraw();
void SetProviderClientImpl(
scoped_refptr<VideoFrameProviderClientImpl> provider_client_impl);
struct FramePlane {
ResourceProvider::ResourceId resource_id;
gfx::Size size;
GLenum format;
FramePlane() : resource_id(0), format(GL_LUMINANCE) {}
bool AllocateData(ResourceProvider* resource_provider);
void FreeData(ResourceProvider* resource_provider);
};
private:
VideoLayerImpl(LayerTreeImpl* tree_impl, int id);
virtual const char* LayerTypeAsString() const OVERRIDE;
void WillDrawInternal(ResourceProvider* resource_provider);
bool AllocatePlaneData(ResourceProvider* resource_provider);
bool CopyPlaneData(ResourceProvider* resource_provider);
void FreePlaneData(ResourceProvider* resource_provider);
void FreeUnusedPlaneData(ResourceProvider* resource_provider);
size_t NumPlanes() const;
scoped_refptr<VideoFrameProviderClientImpl> provider_client_impl_;
media::VideoFrame* frame_;
GLenum format_;
bool convert_yuv_;
ResourceProvider::ResourceId external_texture_resource_;
scoped_ptr<media::SkCanvasVideoRenderer> video_renderer_;
// Each index in this array corresponds to a plane in media::VideoFrame.
FramePlane frame_planes_[media::VideoFrame::kMaxPlanes];
DISALLOW_COPY_AND_ASSIGN(VideoLayerImpl);
};
} // namespace cc
#endif // CC_VIDEO_LAYER_IMPL_H_
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