Program Listing for File param_mapping.hpp

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#pragma once
#include <algorithm>
#include <cmath>
#include <cstdint>

namespace mosaic {

// Rounds a UI double onto an integer GenICam node's device range. Pure
// function (no Pylon dependency) so it's directly unit-testable — used by
// VideoGrabber::apply_image_params() for BlackLevel→BlackLevelRaw and
// DigitalShift.
[[nodiscard]] inline int64_t round_clamp_to_int_range(double value, int64_t nodeMin,
                                                      int64_t nodeMax) {
    const auto v = static_cast<int64_t>(std::lround(value));
    return std::clamp(v, nodeMin, nodeMax);
}

// Maps a normalized [0.0, 1.0] UI value onto an integer GenICam node's
// device range. Pure function — used by apply_image_params() for
// AutoTargetBrightness→AutoTargetValue.
[[nodiscard]] inline int64_t map_normalized_to_int_range(double normalized, int64_t nodeMin,
                                                         int64_t nodeMax) {
    const double norm = std::clamp(normalized, 0.0, 1.0);
    const auto v      = static_cast<int64_t>(
        std::lround(static_cast<double>(nodeMin) + norm * static_cast<double>(nodeMax - nodeMin)));
    return std::clamp(v, nodeMin, nodeMax);
}

} // namespace mosaic