41 lines
1016 B
C++
41 lines
1016 B
C++
//
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// EuropaTools
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//
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// (C) 2021-2022 modeco80 <lily.modeco80@protonmail.ch>
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//
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// SPDX-License-Identifier: GPL-3.0-or-later
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//
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#ifndef EUROPA_FOURCC_H
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#define EUROPA_FOURCC_H
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#include <bit>
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#include <europa/util/FixedString.hpp>
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namespace europa::util {
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/**
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* A multi-endian, compile-time FourCC generator.
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* You love to see it.
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*/
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template <FixedString fccString, std::endian Endian = std::endian::little>
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consteval std::uint32_t FourCC() {
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static_assert(fccString.Length() == 4, "Provided string is not a FourCC");
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switch(Endian) {
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case std::endian::little:
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return (fccString[0]) | (fccString[1] << 8) | (fccString[2] << 16) | (fccString[3] << 24);
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case std::endian::big:
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return (fccString[0] << 24) | (fccString[1] << 16) | (fccString[2] << 8) | fccString[3];
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}
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// Just return something with all possible bits set, if the user somehow
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// got around the above switch (which shouldn't happen).
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return 0xffffffff;
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}
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} // namespace europa::util
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#endif // EUROPA_FOURCC_H
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