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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 "GPUBindGroupEntry.h"
#include "GPUBindGroupLayout.h"
#include "GPUObjectDescriptorBase.h"
#include "WebGPUBindGroupDescriptor.h"
#include <wtf/Vector.h>
namespace WebCore {
struct GPUBindGroupDescriptor : public GPUObjectDescriptorBase {
WebGPU::BindGroupDescriptor convertToBacking() const
{
ASSERT(layout);
return {
{ label },
layout->backing(),
entries.map([](auto& bindGroupEntry) {
return bindGroupEntry.convertToBacking();
}),
};
}
const RefPtr<GPUExternalTexture>* externalTextureMatches(Vector<GPUBindGroupEntry>& comparisonEntries, bool& hasExternalTexture) const
{
bool matched = true;
hasExternalTexture = false;
auto entriesSize = entries.size();
if (entriesSize != comparisonEntries.size())
matched = false;
const RefPtr<GPUExternalTexture>* result = nullptr;
for (size_t i = 0; i < entriesSize; ++i) {
auto& entry = entries[i];
if (matched && !GPUBindGroupEntry::equal(entry, comparisonEntries[i]))
matched = false;
auto externalTexture = entry.externalTexture();
if (!result)
result = externalTexture;
else if (externalTexture)
return nullptr;
if (result)
hasExternalTexture = true;
}
return matched ? result : nullptr;
}
WeakPtr<GPUBindGroupLayout> layout;
Vector<GPUBindGroupEntry> entries;
};
}
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