| /* |
| * Copyright (C) 2020-2021 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 "ConcreteImageBuffer.h" |
| #include "DisplayListDrawingContext.h" |
| #include "InMemoryDisplayList.h" |
| |
| namespace WebCore { |
| namespace DisplayList { |
| |
| template<typename BackendType> |
| class ImageBuffer : public ConcreteImageBuffer<BackendType> { |
| using BaseConcreteImageBuffer = ConcreteImageBuffer<BackendType>; |
| using BaseConcreteImageBuffer::truncatedLogicalSize; |
| using BaseConcreteImageBuffer::logicalSize; |
| using BaseConcreteImageBuffer::baseTransform; |
| |
| public: |
| static auto create(const FloatSize& size, float resolutionScale, const DestinationColorSpace& colorSpace, PixelFormat pixelFormat, const HostWindow* hostWindow) |
| { |
| return BaseConcreteImageBuffer::template create<ImageBuffer>(size, resolutionScale, colorSpace, pixelFormat, hostWindow); |
| } |
| |
| static auto create(const FloatSize& size, const GraphicsContext& context) |
| { |
| return BaseConcreteImageBuffer::template create<ImageBuffer>(size, context); |
| } |
| |
| ImageBuffer(const ImageBufferBackend::Parameters& parameters, std::unique_ptr<BackendType>&& backend) |
| : BaseConcreteImageBuffer(parameters, WTFMove(backend)) |
| , m_drawingContext(logicalSize(), baseTransform()) |
| , m_writingClient(makeUnique<InMemoryDisplayList::WritingClient>()) |
| , m_readingClient(makeUnique<InMemoryDisplayList::ReadingClient>()) |
| { |
| m_drawingContext.displayList().setItemBufferWritingClient(m_writingClient.get()); |
| m_drawingContext.displayList().setItemBufferReadingClient(m_readingClient.get()); |
| } |
| |
| ImageBuffer(const ImageBufferBackend::Parameters& parameters, RecorderImpl::Delegate* delegate = nullptr) |
| : BaseConcreteImageBuffer(parameters) |
| , m_drawingContext(logicalSize(), baseTransform(), delegate) |
| , m_writingClient(makeUnique<InMemoryDisplayList::WritingClient>()) |
| , m_readingClient(makeUnique<InMemoryDisplayList::ReadingClient>()) |
| { |
| m_drawingContext.displayList().setItemBufferWritingClient(m_writingClient.get()); |
| m_drawingContext.displayList().setItemBufferReadingClient(m_readingClient.get()); |
| } |
| |
| ~ImageBuffer() |
| { |
| flushDrawingContext(); |
| } |
| |
| GraphicsContext& context() const override |
| { |
| return m_drawingContext.context(); |
| } |
| |
| GraphicsContext* drawingContext() override { return &m_drawingContext.context(); } |
| |
| void flushDrawingContext() override |
| { |
| if (!m_drawingContext.displayList().isEmpty()) |
| m_drawingContext.replayDisplayList(BaseConcreteImageBuffer::context()); |
| } |
| |
| void clearBackend() override |
| { |
| m_drawingContext.displayList().clear(); |
| BaseConcreteImageBuffer::clearBackend(); |
| } |
| |
| protected: |
| DrawingContext m_drawingContext; |
| std::unique_ptr<ItemBufferWritingClient> m_writingClient; |
| std::unique_ptr<ItemBufferReadingClient> m_readingClient; |
| }; |
| |
| } // DisplayList |
| } // namespace WebCore |