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44 lines
2.1 KiB
C++
44 lines
2.1 KiB
C++
/****************************************************************************
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* Copyright (C) 2016-2021 Maschell
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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****************************************************************************/
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#include "FSTHeader.h"
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#include <utils/blocksize/SectionBlockSize.h>
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#include <utils/logger.h>
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std::optional<std::unique_ptr<FSTHeader>> FSTHeader::make_unique(const std::array<uint8_t, FSTHeader::LENGTH> &data) {
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auto *dataAsUint = (uint32_t *) data.data();
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if ((dataAsUint[0] & 0xFFFFFF00) != 0x46535400) {
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DEBUG_FUNCTION_LINE("FST Header magic was wrong");
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return {};
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}
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auto FSTVersion = data[3];
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auto blockSize = SectionBlockSize(dataAsUint[1]);
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auto numberOfSections = dataAsUint[2];
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auto hashDisabled = data[12];
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return std::unique_ptr<FSTHeader>(new FSTHeader(
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FSTVersion,
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blockSize,
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numberOfSections,
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hashDisabled));
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}
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FSTHeader::FSTHeader(uint8_t pFSTVersion, SectionBlockSize pBlockSize, uint32_t pNumberOfSections, uint8_t pHashDisabled) : FSTVersion(pFSTVersion),
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blockSize(pBlockSize),
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numberOfSections(pNumberOfSections),
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hashDisabled(pHashDisabled) {
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}
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