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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.
*/
#pragma once
#include "GPUAutoLayoutMode.h"
#include "GPUObjectDescriptorBase.h"
#include "GPUPipelineLayout.h"
#include "WebGPUPipelineDescriptorBase.h"
namespace WebCore {
using GPULayoutMode = Variant<
RefPtr<GPUPipelineLayout>,
GPUAutoLayoutMode
>;
static WebGPU::PipelineLayout& convertPipelineLayoutToBacking(const GPULayoutMode& layout, const Ref<GPUPipelineLayout>& autoLayout)
{
return *WTF::switchOn(layout, [](auto pipelineLayout) {
return &pipelineLayout->backing();
}, [&autoLayout](GPUAutoLayoutMode) {
return &autoLayout->backing();
});
}
static uint64_t nextUniqueAutogeneratedPipelineIdentifier()
{
static uint64_t nextUniqueAutogeneratedPipelineId = 0;
return ++nextUniqueAutogeneratedPipelineId;
}
struct GPUPipelineDescriptorBase : public GPUObjectDescriptorBase {
WebGPU::PipelineDescriptorBase convertToBacking(const Ref<GPUPipelineLayout>& autoLayout) const
{
return {
{ label },
&convertPipelineLayoutToBacking(layout, autoLayout)
};
}
uint64_t uniqueAutogeneratedId() const
{
return WTF::switchOn(layout, [](auto) -> uint64_t {
return 0;
}, [this](GPUAutoLayoutMode) mutable -> uint64_t {
if (!m_uniqueId)
m_uniqueId = nextUniqueAutogeneratedPipelineIdentifier();
return m_uniqueId;
});
}
GPULayoutMode layout { nullptr };
private:
mutable uint64_t m_uniqueId { 0 };
};
}
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