47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
/*
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* Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
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*/
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#include <keel/asset.hpp>
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namespace keel {
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ox::Result<ox::UUID> readUuidHeader(ox::Buffer const&buff) noexcept {
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return readUuidHeader(buff.data(), buff.size());
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}
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ox::Result<ox::UUID> readUuidHeader(const char *buff, std::size_t buffLen) noexcept {
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if (buffLen < K1HdrSz) {
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return OxError(1, "Insufficient data to contain complete Keel header");
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}
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constexpr ox::StringView k1Hdr = "K1;";
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if (k1Hdr != ox::StringView(buff, k1Hdr.bytes())) {
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return OxError(2, "No Keel asset header data");
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}
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return ox::UUID::fromString(ox::StringView(buff + k1Hdr.bytes(), 36));
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}
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ox::Result<ox::ModelObject> readAsset(ox::TypeStore *ts, ox::Buffer const&buff) noexcept {
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std::size_t offset = 0;
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if (!readUuidHeader(buff).error) {
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offset = K1HdrSz;
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}
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return ox::readClaw(ts, buff.data() + offset, buff.size() - offset);
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}
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ox::Result<AssetHdr> readAssetHeader(const char *buff, std::size_t buffLen) noexcept {
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AssetHdr out;
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const auto err = readUuidHeader(buff, buffLen).moveTo(&out.uuid);
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const auto offset = err ? 0u : K1HdrSz;
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buff = buff + offset;
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buffLen = buffLen - offset;
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oxReturnError(ox::readClawHeader(buff, buffLen).moveTo(&out.clawHdr));
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return out;
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}
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ox::Result<AssetHdr> readAssetHeader(ox::Buffer const&buff) noexcept {
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return readAssetHeader(buff.data(), buff.size());
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}
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}
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