// Copyright (2019-2023) Paul Scherrer Institute

#ifndef JUNGFRAUJOCH_TO_FIXED_H
#define JUNGFRAUJOCH_TO_FIXED_H

#include <cstdint>
#include <cmath>

inline uint16_t to_fixed(double val, uint16_t fractional_bits) {
    // If val is result of division by zero, only reasonable value of output is zero (otherwise number could be interpreted improperly)
    uint32_t int_val = std::isfinite(val) ? (std::lround(val * (1<<fractional_bits))) : 0;
    // It is unlikely (but not impossible), that gain value will be lower than the smallest possible
    // Then reciprocal of gain could be more than allowed by data format. Protection is added for this condition
    if (int_val > UINT16_MAX) int_val = UINT16_MAX;
    return int_val;
}

#endif //JUNGFRAUJOCH_TO_FIXED_H