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/**
* Copyright © 2017-2025 Wellington Wallace
*
* This file is part of Easy Effects.
*
* Easy Effects is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Easy Effects is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Easy Effects. If not, see <https://www.gnu.org/licenses/>.
*/
#include "fir_filter_highpass.hpp"
#include <algorithm>
#include <string>
#include <utility>
#include "fir_filter_base.hpp"
FirFilterHighpass::FirFilterHighpass(std::string tag) : FirFilterBase(std::move(tag)) {}
FirFilterHighpass::~FirFilterHighpass() = default;
void FirFilterHighpass::setup() {
kernel = create_lowpass_kernel(min_frequency, transition_band);
std::ranges::for_each(kernel, [](auto& v) { v *= -1.0F; });
kernel[(kernel.size() - 1U) / 2U] += 1.0F;
delay = 0.5F * static_cast<float>(kernel.size() - 1U) / static_cast<float>(rate);
setup_zita();
}
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