mirror of
https://github.com/RGBCube/serenity
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104 lines
3 KiB
C++
104 lines
3 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2019-2020, William McPherson <willmcpherson2@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "TrackManager.h"
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TrackManager::TrackManager()
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{
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add_track();
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}
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TrackManager::~TrackManager()
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{
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}
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void TrackManager::fill_buffer(Span<Sample> buffer)
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{
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memset(buffer.data(), 0, buffer_size);
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for (size_t i = 0; i < buffer.size(); ++i) {
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for (auto& track : m_tracks)
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track->fill_sample(buffer[i]);
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if (++m_time >= roll_length) {
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m_time = 0;
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if (!m_should_loop)
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break;
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}
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}
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memcpy(m_current_back_buffer.data(), buffer.data(), buffer_size);
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swap(m_current_front_buffer, m_current_back_buffer);
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}
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void TrackManager::reset()
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{
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memset(m_front_buffer.data(), 0, buffer_size);
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memset(m_back_buffer.data(), 0, buffer_size);
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m_current_front_buffer = m_front_buffer.span();
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m_current_back_buffer = m_back_buffer.span();
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m_time = 0;
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for (auto& track : m_tracks)
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track->reset();
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}
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void TrackManager::set_note_current_octave(int note, Switch switch_note)
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{
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current_track().set_note(note + octave_base(), switch_note);
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}
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void TrackManager::set_octave(Direction direction)
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{
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if (direction == Up) {
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if (m_octave < octave_max)
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++m_octave;
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} else {
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if (m_octave > octave_min)
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--m_octave;
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}
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}
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void TrackManager::set_octave(int octave)
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{
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if (octave <= octave_max && octave >= octave_min) {
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m_octave = octave;
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}
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}
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void TrackManager::add_track()
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{
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m_tracks.append(make<Track>(m_time));
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}
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void TrackManager::next_track()
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{
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if (++m_current_track >= m_tracks.size())
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m_current_track = 0;
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}
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