Line data    Source code

       1              : /*
       2              :  * SPDX-License-Identifier: GPL-3.0-only
       3              :  * MuseScore-Studio-CLA-applies
       4              :  *
       5              :  * MuseScore Studio
       6              :  * Music Composition & Notation
       7              :  *
       8              :  * Copyright (C) 2026 MuseScore Limited and others
       9              :  *
      10              :  * This program is free software: you can redistribute it and/or modify
      11              :  * it under the terms of the GNU General Public License version 3 as
      12              :  * published by the Free Software Foundation.
      13              :  *
      14              :  * This program is distributed in the hope that it will be useful,
      15              :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      16              :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      17              :  * GNU General Public License for more details.
      18              :  *
      19              :  * You should have received a copy of the GNU General Public License
      20              :  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
      21              :  */
      22              : #pragma once
      23              : 
      24              : #include "global/types/number.h"
      25              : 
      26              : #include "engraving/types/bps.h"
      27              : #include "engraving/types/constants.h"
      28              : 
      29              : namespace mu::engraving {
      30              : //! NOTE: AutomationPoint values are normalized [0, 1] - Tempo has no such native unit,
      31              : //! so it's normalized as a fraction of the score's own max valid tempo
      32         1103 : constexpr muse::real_t normalizeTempo(const BeatsPerSecond& bps)
      33              : {
      34         1103 :     return muse::real_t::make(bps.val / Constants::MAX_TEMPO.val);
      35              : }
      36              : 
      37         1463 : constexpr BeatsPerSecond denormalizeTempo(const muse::real_t normalized)
      38              : {
      39         1463 :     return BeatsPerSecond(normalized.raw() * Constants::MAX_TEMPO.val);
      40              : }
      41              : 
      42              : inline constexpr muse::real_t DEFAULT_NORMALIZED_TEMPO = normalizeTempo(Constants::DEFAULT_TEMPO);
      43              : inline constexpr muse::real_t MIN_NORMALIZED_TEMPO = normalizeTempo(Constants::MIN_TEMPO);
      44              : inline constexpr muse::real_t MAX_NORMALIZED_TEMPO = normalizeTempo(Constants::MAX_TEMPO);
      45              : }