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/*
* Copyright (C) 2017-2019 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. ``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
* 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 "ActiveDOMObject.h"
#include "CanvasRenderingContext.h"
#include <wtf/IsoMalloc.h>
namespace WebCore {
class HTMLCanvasElement;
class GPUBasedCanvasRenderingContext : public CanvasRenderingContext, public ActiveDOMObject {
WTF_MAKE_ISO_NONALLOCATABLE(GPUBasedCanvasRenderingContext);
public:
bool isGPUBased() const override { return true; }
bool isAccelerated() const override
{
#if PLATFORM(WIN)
// FIXME: Implement accelerated canvas on Windows.
return false;
#else
return true;
#endif
}
virtual void reshape(int width, int height) = 0;
virtual void markLayerComposited() = 0;
protected:
explicit GPUBasedCanvasRenderingContext(CanvasBase&);
HTMLCanvasElement* htmlCanvas() const;
void notifyCanvasContentChanged();
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_CANVASRENDERINGCONTEXT(WebCore::GPUBasedCanvasRenderingContext, isGPUBased())