/*
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef WebExternalTextureLayerClient_h
#define WebExternalTextureLayerClient_h
#include "WebCommon.h"
#include "WebSize.h"
namespace blink {
class WebGraphicsContext3D;
class WebExternalBitmap;
struct WebExternalTextureMailbox;
class BLINK_PLATFORM_EXPORT WebExternalTextureLayerClient {
public:
virtual WebGraphicsContext3D* context() = 0;
// Returns true and provides a mailbox if a new frame is available. If the WebExternalBitmap
// isn't 0, then it should also be filled in with the contents of this frame.
// Returns false if no new data is available and the old mailbox and bitmap are to be reused.
virtual bool prepareMailbox(WebExternalTextureMailbox*, WebExternalBitmap* = 0) = 0;
// Notifies the client when a mailbox is no longer in use by the compositor and provides
// a sync point to wait on before the mailbox could be consumes again by the client.
virtual void mailboxReleased(const WebExternalTextureMailbox&) = 0;
protected:
virtual ~WebExternalTextureLayerClient() { }
};
} // namespace blink
#endif // WebExternalTextureLayerClient_h