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// Copyright 2011 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 FrameBufferSkPictureCanvasLayerTextureUpdater_h
#define FrameBufferSkPictureCanvasLayerTextureUpdater_h
#if USE(ACCELERATED_COMPOSITING)
#include "SkPictureCanvasLayerTextureUpdater.h"
class GrContext;
namespace WebKit {
class WebGraphicsContext3D;
class WebSharedGraphicsContext3D;
}
namespace cc {
// This class records the contentRect into an SkPicture, then uses accelerated
// drawing to update the texture. The accelerated drawing goes to an
// intermediate framebuffer and then is copied to the destination texture once done.
class FrameBufferSkPictureCanvasLayerTextureUpdater : public SkPictureCanvasLayerTextureUpdater {
public:
class Texture : public LayerTextureUpdater::Texture {
public:
Texture(FrameBufferSkPictureCanvasLayerTextureUpdater*, PassOwnPtr<CCPrioritizedTexture>);
virtual ~Texture();
virtual void updateRect(CCResourceProvider*, const IntRect& sourceRect, const IntSize& destOffset) OVERRIDE;
private:
FrameBufferSkPictureCanvasLayerTextureUpdater* textureUpdater() { return m_textureUpdater; }
FrameBufferSkPictureCanvasLayerTextureUpdater* m_textureUpdater;
};
static PassRefPtr<FrameBufferSkPictureCanvasLayerTextureUpdater> create(PassOwnPtr<LayerPainterChromium>);
virtual ~FrameBufferSkPictureCanvasLayerTextureUpdater();
virtual PassOwnPtr<LayerTextureUpdater::Texture> createTexture(CCPrioritizedTextureManager*) OVERRIDE;
virtual SampledTexelFormat sampledTexelFormat(GC3Denum textureFormat) OVERRIDE;
void updateTextureRect(WebKit::WebGraphicsContext3D*, GrContext*, CCResourceProvider*, CCPrioritizedTexture*, const IntRect& sourceRect, const IntSize& destOffset);
private:
explicit FrameBufferSkPictureCanvasLayerTextureUpdater(PassOwnPtr<LayerPainterChromium>);
};
} // namespace cc
#endif // USE(ACCELERATED_COMPOSITING)
#endif // FrameBufferSkPictureCanvasLayerTextureUpdater_h
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