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25 lines
492 B
25 lines
492 B
/*
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* Copyright 2023 jacqueline <me@jacqueline.id.au>
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*
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* SPDX-License-Identifier: GPL-3.0-only
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*/
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#include "sample.hpp"
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#include <stdint.h>
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#include <cstdint>
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#include "komihash.h"
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namespace sample {
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static uint64_t sSeed1{0};
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static uint64_t sSeed2{0};
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auto shiftWithDither(int64_t src, uint_fast8_t bits) -> Sample {
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// FIXME: Use a better dither.
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int16_t noise = static_cast<int16_t>(komirand(&sSeed1, &sSeed2) & 1);
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return (src >> bits) ^ noise;
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}
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} // namespace sample
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