/* * Copyright (C) 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. */ #include "config.h" #include "GPUBasedCanvasRenderingContext.h" #include "HTMLCanvasElement.h" #include "RenderBox.h" namespace WebCore { GPUBasedCanvasRenderingContext::GPUBasedCanvasRenderingContext(CanvasBase& canvas) : CanvasRenderingContext(canvas) , ActiveDOMObject(canvas.scriptExecutionContext()) { } HTMLCanvasElement* GPUBasedCanvasRenderingContext::htmlCanvas() const { auto& base = canvasBase(); if (!is<HTMLCanvasElement>(base)) return nullptr; return &downcast<HTMLCanvasElement>(base); } void GPUBasedCanvasRenderingContext::notifyCanvasContentChanged() { if (htmlCanvas()) { RenderBox* renderBox = htmlCanvas()->renderBox(); if (renderBox && renderBox->hasAcceleratedCompositing()) renderBox->contentChanged(CanvasChanged); } } } // namespace WebCore