blob: c90c01b093f15a42a683fff7ace443fad1b1c7d6 [file] [log] [blame]
/*
* Copyright (C) 2017 Apple 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 INC. 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 INC. 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.
*/
#pragma once
#include "GraphicsContext3DAttributes.h"
#include <wtf/Function.h>
#include <wtf/RefCounter.h>
namespace WebCore {
class WebGLStateTracker {
WTF_MAKE_FAST_ALLOCATED;
public:
using StateChangeHandler = WTF::Function<void(bool isUsingWebGL)>;
WEBCORE_EXPORT explicit WebGLStateTracker(StateChangeHandler&&);
enum WebGLContextCounterType { };
using WebGLContextCounter = RefCounter<WebGLContextCounterType>;
using Token = WebGLContextCounter::Token;
Token token(GraphicsContext3DPowerPreference);
private:
void updateWebGLState();
WebGLContextCounter m_webGLContextCounter;
StateChangeHandler m_stateChangeHandler;
};
} // namespace WebCore