| /* |
| * Copyright (C) 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. 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. |
| */ |
| |
| #include "config.h" |
| #include "CGDisplayListImageBufferBackend.h" |
| |
| #if ENABLE(CG_DISPLAY_LIST_BACKED_IMAGE_BUFFER) |
| |
| #include <WebCore/GraphicsContextCG.h> |
| #include <WebCore/PixelBuffer.h> |
| #include <WebKitAdditions/CGDisplayListImageBufferAdditions.h> |
| #include <wtf/IsoMallocInlines.h> |
| |
| namespace WebKit { |
| |
| WTF_MAKE_ISO_ALLOCATED_IMPL(CGDisplayListImageBufferBackend); |
| |
| size_t CGDisplayListImageBufferBackend::calculateMemoryCost(const Parameters& parameters) |
| { |
| // FIXME: This is fairly meaningless, because we don't actually have a bitmap, and |
| // should really be based on the encoded data size. |
| auto backendSize = calculateBackendSize(parameters); |
| return WebCore::ImageBufferBackend::calculateMemoryCost(backendSize, calculateBytesPerRow(backendSize)); |
| } |
| |
| std::unique_ptr<CGDisplayListImageBufferBackend> CGDisplayListImageBufferBackend::create(const Parameters& parameters) |
| { |
| auto logicalSize = parameters.logicalSize; |
| if (logicalSize.isEmpty()) |
| return nullptr; |
| |
| auto cgContext = adoptCF(WKCGCommandsContextCreate(logicalSize, nullptr)); |
| if (!cgContext) |
| return nullptr; |
| |
| auto context = makeUnique<WebCore::GraphicsContextCG>(cgContext.get()); |
| return std::unique_ptr<CGDisplayListImageBufferBackend>(new CGDisplayListImageBufferBackend(parameters, WTFMove(context))); |
| } |
| |
| std::unique_ptr<CGDisplayListImageBufferBackend> CGDisplayListImageBufferBackend::create(const Parameters& parameters, const WebCore::HostWindow*) |
| { |
| return CGDisplayListImageBufferBackend::create(parameters); |
| } |
| |
| CGDisplayListImageBufferBackend::CGDisplayListImageBufferBackend(const Parameters& parameters, std::unique_ptr<WebCore::GraphicsContext>&& context) |
| : ImageBufferCGBackend { parameters } |
| , m_context { WTFMove(context) } |
| { |
| } |
| |
| ImageBufferBackendHandle CGDisplayListImageBufferBackend::createImageBufferBackendHandle() const |
| { |
| auto data = adoptCF(WKCGCommandsContextCopyEncodedData(m_context->platformContext())); |
| ASSERT(data); |
| |
| return ImageBufferBackendHandle { IPC::SharedBufferCopy { WebCore::SharedBuffer::create(data.get()) } }; |
| } |
| |
| WebCore::GraphicsContext& CGDisplayListImageBufferBackend::context() const |
| { |
| return *m_context; |
| } |
| |
| WebCore::IntSize CGDisplayListImageBufferBackend::backendSize() const |
| { |
| return calculateBackendSize(m_parameters); |
| } |
| |
| unsigned CGDisplayListImageBufferBackend::bytesPerRow() const |
| { |
| return calculateBytesPerRow(backendSize()); |
| } |
| |
| RefPtr<WebCore::NativeImage> CGDisplayListImageBufferBackend::copyNativeImage(WebCore::BackingStoreCopy) const |
| { |
| ASSERT_NOT_REACHED(); |
| return nullptr; |
| } |
| |
| std::optional<WebCore::PixelBuffer> CGDisplayListImageBufferBackend::getPixelBuffer(const WebCore::PixelBufferFormat&, const WebCore::IntRect&) const |
| { |
| ASSERT_NOT_REACHED(); |
| return { }; |
| } |
| |
| void CGDisplayListImageBufferBackend::putPixelBuffer(const WebCore::PixelBuffer&, const WebCore::IntRect&, const WebCore::IntPoint&, WebCore::AlphaPremultiplication) |
| { |
| ASSERT_NOT_REACHED(); |
| } |
| |
| } |
| |
| #endif // ENABLE(CG_DISPLAY_LIST_BACKED_IMAGE_BUFFER) |