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/*
* Copyright 2023 jacqueline <me@jacqueline.id.au>
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#include "sample.hpp"
#include <stdint.h>
#include <cstdint>
#include "komihash.h"
namespace sample {
auto shiftWithDither(int64_t src, uint_fast8_t bits) -> Sample {
// FIXME: Use a better dither.
static uint64_t sSeed1{0};
static uint64_t sSeed2{0};
static uint64_t noise;
static uint_fast8_t pos = 0;
if (pos++ % 64 == 0)
noise = komirand(&sSeed1, &sSeed2);
else
noise >>= 1;
return (src >> bits) ^ (noise & 1);
}
} // namespace sample
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