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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 "WebGPUImpl.h"
#if HAVE(WEBGPU_IMPLEMENTATION)
#include "WebGPUAdapterImpl.h"
#include "WebGPUCompositorIntegrationImpl.h"
#include "WebGPUDowncastConvertToBackingContext.h"
#include "WebGPUPresentationContextDescriptor.h"
#include "WebGPUPresentationContextImpl.h"
#include <WebCore/GraphicsContext.h>
#include <WebCore/IntSize.h>
#include <WebCore/NativeImage.h>
#include <WebGPU/WebGPUExt.h>
#include <wtf/BlockPtr.h>
namespace WebCore::WebGPU {
GPUImpl::GPUImpl(WebGPUPtr<WGPUInstance>&& instance, ConvertToBackingContext& convertToBackingContext)
: m_backing(WTFMove(instance))
, m_convertToBackingContext(convertToBackingContext)
{
}
GPUImpl::~GPUImpl() = default;
static void requestAdapterCallback(WGPURequestAdapterStatus status, WGPUAdapter adapter, const char* message, void* userdata)
{
auto block = reinterpret_cast<void(^)(WGPURequestAdapterStatus, WGPUAdapter, const char*)>(userdata);
block(status, adapter, message);
Block_release(block); // Block_release is matched with Block_copy below in GPUImpl::requestAdapter().
}
void GPUImpl::requestAdapter(const RequestAdapterOptions& options, CompletionHandler<void(RefPtr<Adapter>&&)>&& callback)
{
WGPURequestAdapterOptions backingOptions {
nullptr,
nullptr,
options.powerPreference ? m_convertToBackingContext->convertToBacking(*options.powerPreference) : static_cast<WGPUPowerPreference>(WGPUPowerPreference_Undefined),
WGPUBackendType_Metal,
options.forceFallbackAdapter,
};
auto blockPtr = makeBlockPtr([convertToBackingContext = m_convertToBackingContext.copyRef(), callback = WTFMove(callback)](WGPURequestAdapterStatus status, WGPUAdapter adapter, const char*) mutable {
if (status == WGPURequestAdapterStatus_Success)
callback(AdapterImpl::create(adoptWebGPU(adapter), convertToBackingContext));
else
callback(nullptr);
});
wgpuInstanceRequestAdapter(m_backing.get(), &backingOptions, &requestAdapterCallback, Block_copy(blockPtr.get())); // Block_copy is matched with Block_release above in requestAdapterCallback().
}
static WTF::Function<void(CompletionHandler<void()>&&)> convert(WGPUOnSubmittedWorkScheduledCallback&& onSubmittedWorkScheduledCallback)
{
return [onSubmittedWorkScheduledCallback = makeBlockPtr(WTFMove(onSubmittedWorkScheduledCallback))](CompletionHandler<void()>&& completionHandler) {
onSubmittedWorkScheduledCallback(makeBlockPtr(WTFMove(completionHandler)).get());
};
}
Ref<PresentationContext> GPUImpl::createPresentationContext(const PresentationContextDescriptor& presentationContextDescriptor)
{
auto& compositorIntegration = m_convertToBackingContext->convertToBacking(presentationContextDescriptor.compositorIntegration);
auto registerCallbacksBlock = makeBlockPtr([&](WGPURenderBuffersWereRecreatedBlockCallback renderBuffersWereRecreatedCallback, WGPUOnSubmittedWorkScheduledCallback onSubmittedWorkScheduledCallback) {
compositorIntegration.registerCallbacks(makeBlockPtr(WTFMove(renderBuffersWereRecreatedCallback)), convert(WTFMove(onSubmittedWorkScheduledCallback)));
});
WGPUSurfaceDescriptorCocoaCustomSurface cocoaSurface {
{
nullptr,
static_cast<WGPUSType>(WGPUSTypeExtended_SurfaceDescriptorCocoaSurfaceBacking),
},
registerCallbacksBlock.get(),
};
WGPUSurfaceDescriptor surfaceDescriptor {
&cocoaSurface.chain,
nullptr,
};
auto result = PresentationContextImpl::create(adoptWebGPU(wgpuInstanceCreateSurface(m_backing.get(), &surfaceDescriptor)), m_convertToBackingContext);
compositorIntegration.setPresentationContext(result);
return result;
}
Ref<CompositorIntegration> GPUImpl::createCompositorIntegration()
{
return CompositorIntegrationImpl::create(m_convertToBackingContext);
}
void GPUImpl::paintToCanvas(WebCore::NativeImage& image, const WebCore::IntSize& canvasSize, WebCore::GraphicsContext& context)
{
auto imageSize = image.size();
FloatRect canvasRect(FloatPoint(), canvasSize);
GraphicsContextStateSaver stateSaver(context);
context.setImageInterpolationQuality(InterpolationQuality::DoNotInterpolate);
context.drawNativeImage(image, canvasRect, FloatRect(FloatPoint(), imageSize), { CompositeOperator::Copy });
}
} // namespace WebCore::WebGPU
#endif // HAVE(WEBGPU_IMPLEMENTATION)
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