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// Copyright (c) 2013 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_OUTPUT_CONTEXT_PROVIDER_H_
#define CC_OUTPUT_CONTEXT_PROVIDER_H_
#include "base/memory/ref_counted.h"
class GrContext;
namespace WebKit { class WebGraphicsContext3D; }
namespace cc {
class ContextProvider : public base::RefCountedThreadSafe<ContextProvider> {
public:
// Bind the 3d context to the current thread. This should be called before
// accessing the contexts. Calling it more than once should have no effect.
// Once this function has been called, the class should only be accessed
// from the same thread.
virtual bool BindToCurrentThread() = 0;
virtual WebKit::WebGraphicsContext3D* Context3d() = 0;
virtual class GrContext* GrContext() = 0;
// Ask the provider to check if the contexts are valid or lost. If they are,
// this should invalidate the provider so that it can be replaced with a new
// one.
virtual void VerifyContexts() = 0;
// A method to be called from the main thread that should return true if
// the context inside the provider is no longer valid.
virtual bool DestroyedOnMainThread() = 0;
protected:
friend class base::RefCountedThreadSafe<ContextProvider>;
virtual ~ContextProvider() {}
};
} // namespace cc
#endif // CC_OUTPUT_CONTEXT_PROVIDER_H_
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