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/*
* Copyright (C) 2011 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 SharedGraphicsContext3D_h
#define SharedGraphicsContext3D_h
#include "GraphicsContext3D.h"
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class SharedGraphicsContext3D {
public:
// The caller may ref this pointer, and hang onto it as long as they like.
// However, the context should be checked periodically to determine if it
// has been lost. The easiest way to do that is to simply call this
// function again. Note that the return value may be 0 if the
// GPU is unavailable.
static PassRefPtr<GraphicsContext3D> get();
// This one returns the context, and does not touch it or re-create it.
// Should only be called on the impl thread.
static PassRefPtr<GraphicsContext3D> getForImplThread();
// This one returns if the threaded utility context exists.
// Should only be called on the main thread.
static bool haveForImplThread();
// This call creates the context unconditionally, but does not touch it.
// Should only be called on the main thread.
static bool createForImplThread();
};
}
#endif // SharedGraphicsContext3D_h
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