/* * 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 "CanvasRenderingContext.h" #include "ExceptionOr.h" #include "ImageBitmapRenderingContextSettings.h" #include "ImageBufferData.h" #include <memory> #include <wtf/RefPtr.h> namespace WebCore { class ImageBitmap; class ImageBuffer; class ImageBitmapRenderingContext final : public CanvasRenderingContext { public: static std::unique_ptr<ImageBitmapRenderingContext> create(CanvasBase&, ImageBitmapRenderingContextSettings&&); enum class BitmapMode { Valid, Blank }; ~ImageBitmapRenderingContext(); HTMLCanvasElement* canvas() const; ExceptionOr<void> transferFromImageBitmap(RefPtr<ImageBitmap>); BitmapMode bitmapMode() { return m_bitmapMode; } bool hasAlpha() { return m_settings.alpha; } private: ImageBitmapRenderingContext(CanvasBase&, ImageBitmapRenderingContextSettings&&); bool isBitmapRenderer() const final { return true; } bool isAccelerated() const override; void setOutputBitmap(RefPtr<ImageBitmap>); BitmapMode m_bitmapMode { BitmapMode::Blank }; ImageBitmapRenderingContextSettings m_settings; }; } SPECIALIZE_TYPE_TRAITS_CANVASRENDERINGCONTEXT(WebCore::ImageBitmapRenderingContext, isBitmapRenderer())