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// Copyright 2014 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_BLINK_WEB_EXTERNAL_TEXTURE_LAYER_IMPL_H_
#define CC_BLINK_WEB_EXTERNAL_TEXTURE_LAYER_IMPL_H_
#include "base/bind.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/scoped_vector.h"
#include "cc/blink/cc_blink_export.h"
#include "cc/layers/texture_layer_client.h"
#include "third_party/WebKit/public/platform/WebExternalTextureLayer.h"
namespace blink {
struct WebFloatRect;
struct WebExternalTextureMailbox;
}
namespace cc {
class SingleReleaseCallback;
class TextureMailbox;
}
namespace cc_blink {
class WebLayerImpl;
class WebExternalBitmapImpl;
class WebExternalTextureLayerImpl
: public blink::WebExternalTextureLayer,
public cc::TextureLayerClient,
public base::SupportsWeakPtr<WebExternalTextureLayerImpl> {
public:
CC_BLINK_EXPORT explicit WebExternalTextureLayerImpl(
blink::WebExternalTextureLayerClient*);
virtual ~WebExternalTextureLayerImpl();
// blink::WebExternalTextureLayer implementation.
virtual blink::WebLayer* layer();
virtual void clearTexture();
virtual void setOpaque(bool opaque);
virtual void setPremultipliedAlpha(bool premultiplied);
virtual void setBlendBackgroundColor(bool blend);
virtual void setRateLimitContext(bool rate_limit);
// TextureLayerClient implementation.
virtual bool PrepareTextureMailbox(
cc::TextureMailbox* mailbox,
scoped_ptr<cc::SingleReleaseCallback>* release_callback,
bool use_shared_memory) OVERRIDE;
private:
static void DidReleaseMailbox(
base::WeakPtr<WebExternalTextureLayerImpl> layer,
const blink::WebExternalTextureMailbox& mailbox,
WebExternalBitmapImpl* bitmap,
unsigned sync_point,
bool lost_resource);
WebExternalBitmapImpl* AllocateBitmap();
blink::WebExternalTextureLayerClient* client_;
scoped_ptr<WebLayerImpl> layer_;
ScopedVector<WebExternalBitmapImpl> free_bitmaps_;
DISALLOW_COPY_AND_ASSIGN(WebExternalTextureLayerImpl);
};
} // namespace cc_blink
#endif // CC_BLINK_WEB_EXTERNAL_TEXTURE_LAYER_IMPL_H_
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