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Piano+LibDSP: Move Track to LibDSP
This is a tangly commit and it fixes all the bugs that a plain move would have caused (i.e. we need to touch other logic which had wrong assumptions).
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parent
125122a9ab
commit
4941cffdd0
29 changed files with 322 additions and 413 deletions
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@ -8,15 +8,18 @@
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*/
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#include "TrackManager.h"
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#include "Applications/Piano/Music.h"
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#include "Music.h"
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#include <AK/NonnullRefPtr.h>
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#include <AK/TypedTransfer.h>
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#include <LibDSP/Effects.h>
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#include <LibDSP/Synthesizers.h>
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TrackManager::TrackManager()
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: m_transport(make_ref_counted<DSP::Transport>(120, 4))
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, m_keyboard(make_ref_counted<DSP::Keyboard>(m_transport))
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, m_temporary_track_buffer(FixedArray<DSP::Sample>::must_create_but_fixme_should_propagate_errors(sample_count))
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{
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add_track();
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m_tracks[m_current_track]->set_active(true);
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}
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void TrackManager::time_forward(int amount)
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@ -30,47 +33,38 @@ void TrackManager::time_forward(int amount)
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}
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}
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void TrackManager::fill_buffer(Span<Sample> buffer)
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void TrackManager::fill_buffer(FixedArray<DSP::Sample>& buffer)
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{
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memset(buffer.data(), 0, buffer_size);
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VERIFY(buffer.size() == m_temporary_track_buffer.size());
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size_t sample_count = buffer.size();
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// No need to zero the temp buffer as the track overwrites it anyways.
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buffer.fill_with({});
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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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m_transport->set_time(m_transport->time() + 1);
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// FIXME: This should be handled automatically by Transport.
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if (m_transport->time() >= roll_length) {
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m_transport->set_time(0);
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if (!m_should_loop)
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break;
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}
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for (auto& track : m_tracks) {
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track->current_signal(m_temporary_track_buffer);
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for (size_t i = 0; i < sample_count; ++i)
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buffer[i] += m_temporary_track_buffer[i];
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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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m_transport->set_time(m_transport->time() + sample_count);
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// FIXME: This should be handled automatically by Transport. It will also advance slightly past the loop point if we're unlucky.
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if (m_transport->time() >= roll_length)
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m_transport->set_time(0);
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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_transport->set_time(0);
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for (auto& track : m_tracks) {
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track->reset();
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track->set_active(false);
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}
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m_tracks[m_current_track]->set_active(true);
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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_transport, m_keyboard));
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auto new_track = make_ref_counted<DSP::NoteTrack>(m_transport, m_keyboard);
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MUST(new_track->resize_internal_buffers_to(m_temporary_track_buffer.size()));
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new_track->add_processor(make_ref_counted<DSP::Synthesizers::Classic>(m_transport));
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new_track->add_processor(make_ref_counted<DSP::Effects::Delay>(m_transport));
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new_track->add_clip(0, roll_length);
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m_tracks.append(move(new_track));
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}
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int TrackManager::next_track_index() const
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