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/*
* 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 WebSharedGraphicsContext3D_h
#define WebSharedGraphicsContext3D_h
#include "WebCommon.h"
class GrContext;
namespace WebKit {
class WebGraphicsContext3D;
class WebSharedGraphicsContext3D {
public:
// Returns a context usable from the main thread. If the context is lost or has never been created, this will attempt to create a new context.
// The returned pointer is only valid until the next call to mainThreadContext().
WEBKIT_EXPORT static WebGraphicsContext3D* mainThreadContext();
// Returns a ganesh context associated with the main thread shared context. The ganesh context has the same lifetime as the main thread shared
// WebGraphicsContext3D.
WEBKIT_EXPORT static GrContext* mainThreadGrContext();
// Attempts to create a context usable from the compositor thread. Must be called from the main (WebKit) thread. Returns false
// if a context could not be created.
WEBKIT_EXPORT static bool createCompositorThreadContext();
// Can be called from any thread.
WEBKIT_EXPORT static bool haveCompositorThreadContext();
// Returns a context usable from the compositor thread, if there is one. The context must be used only from the compositor thread.
// The returned context is valid until the next call to createCompositorThreadContext().
// If this context becomes lost or unusable, the caller should call createCompositorThreadContext() on the main thread and
// then use the newly created context from the compositor thread.
WEBKIT_EXPORT static WebGraphicsContext3D* compositorThreadContext();
// Returns a ganesh context associated with the compositor thread shared context. The ganesh context has the same lifetime as the compositor thread
// shared WebGraphicsContext3D.
WEBKIT_EXPORT static GrContext* compositorThreadGrContext();
};
}
#endif // WebSharedGraphicsContext3D_h
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