88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
/*
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* Copyright (C) 2021 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if ENABLE(MODEL_ELEMENT)
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#include "SharedBuffer.h"
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#include <wtf/RefCounted.h>
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namespace WTF {
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class TextStream;
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}
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namespace WebCore {
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class Model final : public RefCounted<Model> {
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public:
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WEBCORE_EXPORT static Ref<Model> create(Ref<SharedBuffer>);
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WEBCORE_EXPORT ~Model();
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Ref<SharedBuffer> data() const { return m_data; }
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template<class Encoder> void encode(Encoder&) const;
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template<class Decoder> static RefPtr<Model> decode(Decoder&);
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private:
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explicit Model(Ref<SharedBuffer>);
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Ref<SharedBuffer> m_data;
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};
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template<class Encoder>
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void Model::encode(Encoder& encoder) const
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{
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encoder << static_cast<size_t>(m_data->size());
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encoder.encodeFixedLengthData(m_data->data(), m_data->size(), 1);
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}
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template<class Decoder>
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RefPtr<Model> Model::decode(Decoder& decoder)
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{
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std::optional<size_t> length;
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decoder >> length;
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if (!length)
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return nullptr;
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if (!decoder.template bufferIsLargeEnoughToContain<uint8_t>(length.value())) {
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decoder.markInvalid();
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return nullptr;
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}
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Vector<uint8_t> data;
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data.grow(*length);
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if (!decoder.decodeFixedLengthData(data.data(), data.size(), 1))
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return nullptr;
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return Model::create(SharedBuffer::create(WTFMove(data)));
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}
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WEBCORE_EXPORT WTF::TextStream& operator<<(WTF::TextStream&, const Model&);
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} // namespace WebCore
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#endif // ENABLE(MODEL_ELEMENT)
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