panning.h

// SPDX-FileCopyrightText: © 2018-2020, 2024, 2026 Alexandros Theodotou <alex@zrythm.org>
// SPDX-License-Identifier: LicenseRef-ZrythmLicense
 
#pragma once
 
#include "utils/enum_utils.h"
 
#include <QtTranslation>
 
namespace zrythm::dsp
{

enum class PanLaw
{
  ZerodB,
  Minus3dB,
  Minus6dB
};

enum class PanAlgorithm
{
  Linear,
  SquareRoot,
  SineLaw
};

enum class BalanceControlAlgorithm
{
  Linear,
};

[[nodiscard]] std::pair<float, float>
calculate_panning (PanLaw law, PanAlgorithm algo, float pan);

[[nodiscard]] std::pair<float, float>
calculate_balance_control (
  BalanceControlAlgorithm algorithm,
  float                   balance_control_position);
 
}; // namespace zrythm::dsp
 
DEFINE_ENUM_FORMATTER (
  zrythm::dsp::PanAlgorithm,
  PanAlgorithm,
  QT_TR_NOOP_UTF8 ("Linear"),
  QT_TR_NOOP_UTF8 ("Square Root"),
  QT_TR_NOOP_UTF8 ("Sine"));
 
DEFINE_ENUM_FORMATTER (
  zrythm::dsp::PanLaw,
  PanLaw,
  /* TRANSLATORS: decibels */
  QT_TR_NOOP_UTF8 ("0dB"),
  QT_TR_NOOP_UTF8 ("-3dB"),
  QT_TR_NOOP_UTF8 ("-6dB"));
 
DEFINE_ENUM_FORMATTER (
  zrythm::dsp::BalanceControlAlgorithm,
  BalanceControlAlgorithm,
  QT_TR_NOOP_UTF8 ("Linear"));