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/*
* Copyright (C) 2021-2023 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 "WebGPUCompositorIntegrationImpl.h"
#if HAVE(WEBGPU_IMPLEMENTATION)
#include "WebGPUConvertToBackingContext.h"
#include <CoreFoundation/CoreFoundation.h>
#include <WebCore/IOSurface.h>
#include <WebCore/NativeImage.h>
#include <WebGPU/WebGPUExt.h>
#include <pal/spi/cg/CoreGraphicsSPI.h>
#include <wtf/spi/cocoa/IOSurfaceSPI.h>
namespace WebCore::WebGPU {
CompositorIntegrationImpl::CompositorIntegrationImpl(ConvertToBackingContext& convertToBackingContext)
: m_convertToBackingContext(convertToBackingContext)
{
}
CompositorIntegrationImpl::~CompositorIntegrationImpl() = default;
void CompositorIntegrationImpl::prepareForDisplay(CompletionHandler<void()>&& completionHandler)
{
if (auto* presentationContext = m_presentationContext.get())
presentationContext->present();
m_onSubmittedWorkScheduledCallback(WTFMove(completionHandler));
}
#if PLATFORM(COCOA)
Vector<MachSendRight> CompositorIntegrationImpl::recreateRenderBuffers(int width, int height)
{
m_renderBuffers.clear();
if (auto* presentationContext = m_presentationContext.get()) {
static_cast<PresentationContext*>(presentationContext)->unconfigure();
presentationContext->setSize(width, height);
}
constexpr int max2DTextureSize = 16384;
width = std::max(1, std::min(max2DTextureSize, width));
height = std::max(1, std::min(max2DTextureSize, height));
m_renderBuffers.append(WebCore::IOSurface::create(nullptr, WebCore::IntSize(width, height), WebCore::DestinationColorSpace::SRGB()));
m_renderBuffers.append(WebCore::IOSurface::create(nullptr, WebCore::IntSize(width, height), WebCore::DestinationColorSpace::SRGB()));
{
auto renderBuffers = adoptCF(CFArrayCreateMutable(kCFAllocatorDefault, 2, &kCFTypeArrayCallBacks));
for (auto& ioSurface : m_renderBuffers)
CFArrayAppendValue(renderBuffers.get(), ioSurface->surface());
m_renderBuffersWereRecreatedCallback(static_cast<CFArrayRef>(renderBuffers));
}
return m_renderBuffers.map([](const auto& renderBuffer) {
return renderBuffer->createSendRight();
});
}
#endif
void CompositorIntegrationImpl::withDisplayBufferAsNativeImage(uint32_t bufferIndex, Function<void(WebCore::NativeImage&)> completion)
{
if (!m_renderBuffers.size() || bufferIndex >= m_renderBuffers.size())
return;
RefPtr<NativeImage> displayImage;
// Use the IOSurface backed image directly
auto& renderBuffer = m_renderBuffers[bufferIndex];
RetainPtr<CGContextRef> cgContext = renderBuffer->createPlatformContext();
if (cgContext)
displayImage = NativeImage::create(renderBuffer->createImage(cgContext.get()));
if (!displayImage)
return;
CGImageSetCachingFlags(displayImage->platformImage().get(), kCGImageCachingTransient);
completion(*displayImage);
}
void CompositorIntegrationImpl::paintCompositedResultsToCanvas(WebCore::ImageBuffer&, uint32_t)
{
ASSERT_NOT_REACHED();
}
} // namespace WebCore::WebGPU
#endif // HAVE(WEBGPU_IMPLEMENTATION)
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