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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 "WebGPUBindGroupEntry.h"
#if ENABLE(GPU_PROCESS)
#include "WebGPUConvertFromBackingContext.h"
#include "WebGPUConvertToBackingContext.h"
#include <WebCore/WebGPUBindGroupEntry.h>
#include <WebCore/WebGPUExternalTexture.h>
#include <WebCore/WebGPUSampler.h>
#include <WebCore/WebGPUTexture.h>
namespace WebKit::WebGPU {
std::optional<BindGroupEntry> ConvertToBackingContext::convertToBacking(const WebCore::WebGPU::BindGroupEntry& bindGroupEntry)
{
return WTF::switchOn(bindGroupEntry.resource, [&] (std::reference_wrapper<WebCore::WebGPU::Sampler> sampler) -> std::optional<BindGroupEntry> {
auto identifier = convertToBacking(Ref { sampler.get() }.get());
return { { bindGroupEntry.binding, { identifier }, identifier, BindingResourceType::Sampler } };
}, [&] (std::reference_wrapper<WebCore::WebGPU::TextureView> textureView) -> std::optional<BindGroupEntry> {
auto identifier = convertToBacking(Ref { textureView.get() }.get());
return { { bindGroupEntry.binding, { identifier }, identifier, BindingResourceType::TextureView } };
}, [&] (const auto& bufferBinding) -> std::optional<BindGroupEntry> {
auto convertedBufferBinding = convertToBacking(bufferBinding);
if (!convertedBufferBinding)
return std::nullopt;
return { { bindGroupEntry.binding, WTFMove(*convertedBufferBinding), convertedBufferBinding->buffer, BindingResourceType::BufferBinding } };
}, [&] (std::reference_wrapper<WebCore::WebGPU::ExternalTexture> externalTexture) -> std::optional<BindGroupEntry> {
auto identifier = convertToBacking(Ref { externalTexture.get() }.get());
return { { bindGroupEntry.binding, { identifier }, identifier, BindingResourceType::ExternalTexture } };
});
}
std::optional<WebCore::WebGPU::BindGroupEntry> ConvertFromBackingContext::convertFromBacking(const BindGroupEntry& bindGroupEntry)
{
switch (bindGroupEntry.type) {
case BindingResourceType::Sampler: {
WeakPtr sampler = convertSamplerFromBacking(bindGroupEntry.identifier);
if (!sampler)
return std::nullopt;
return { { bindGroupEntry.binding, { *sampler } } };
}
case BindingResourceType::TextureView: {
WeakPtr textureView = convertTextureViewFromBacking(bindGroupEntry.identifier);
if (!textureView)
return std::nullopt;
return { { bindGroupEntry.binding, { *textureView } } };
}
case BindingResourceType::BufferBinding: {
auto bufferBinding = convertFromBacking(bindGroupEntry.bufferBinding);
if (!bufferBinding)
return std::nullopt;
return { { bindGroupEntry.binding, { *bufferBinding } } };
}
case BindingResourceType::ExternalTexture: {
auto externalTexture = convertExternalTextureFromBacking(bindGroupEntry.identifier);
if (!externalTexture.get())
return std::nullopt;
return { { bindGroupEntry.binding, { *externalTexture.get() } } };
}
}
RELEASE_ASSERT_NOT_REACHED();
}
} // namespace WebKit
#endif // ENABLE(GPU_PROCESS)
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