mirror of
https://github.com/Ardour/ardour.git
synced 2025-12-16 19:56:31 +01:00
Make SMFSource suck significantly less.
Read from MidiRingbuffer directly into model, don't read MidiRingBuffer into a new midi buffer, then into the model. Pass rec data to UI via model instead of a separate buffer. Read MIDI CC data into MidiModel (though not actually used yet). Made quantization toggle edited flag so model is saved. git-svn-id: svn://localhost/ardour2/trunk@2308 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
David Robillard
parent
356f9ba80a
commit
f9a7388d7a
15 changed files with 295 additions and 166 deletions
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@ -394,11 +394,14 @@ MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
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void
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MidiRegionView::redisplay_model()
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{
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clear_events();
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//cerr << "Redisplaying model " << _model << endl;
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// Don't redisplay the model if we're currently recording and displaying that
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if (_active_notes)
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return;
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if (_model) {
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clear_events();
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begin_write();
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for (size_t i=0; i < _model->n_notes(); ++i)
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@ -406,7 +409,7 @@ MidiRegionView::redisplay_model()
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end_write();
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} else {
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warning << "MidiRegionView::redisplay_model called without a model" << endmsg;
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cerr << "MidiRegionView::redisplay_model called without a model" << endmsg;
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}
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}
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@ -414,8 +417,11 @@ MidiRegionView::redisplay_model()
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MidiRegionView::~MidiRegionView ()
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{
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in_destructor = true;
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if (_active_notes)
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end_write();
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clear_events();
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RegionViewGoingAway (this); /* EMIT_SIGNAL */
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}
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@ -488,6 +494,7 @@ MidiRegionView::add_ghost (AutomationTimeAxisView& atv)
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void
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MidiRegionView::begin_write()
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{
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assert(!_active_notes);
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_active_notes = new CanvasNote*[128];
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for (unsigned i=0; i < 128; ++i)
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_active_notes[i] = NULL;
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@ -512,9 +519,9 @@ MidiRegionView::end_write()
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void
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MidiRegionView::add_event (const MidiEvent& ev)
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{
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/*printf("Event, time = %f, size = %zu, data = ", ev.time, ev.size);
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for (size_t i=0; i < ev.size; ++i) {
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printf("%X ", ev.buffer[i]);
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/*printf("MRV add Event, time = %f, size = %u, data = ", ev.time(), ev.size());
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for (size_t i=0; i < ev.size(); ++i) {
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printf("%X ", ev.buffer()[i]);
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}
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printf("\n\n");*/
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@ -410,7 +410,7 @@ MidiStreamView::setup_rec_box ()
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}
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void
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MidiStreamView::update_rec_regions (boost::shared_ptr<MidiBuffer> data, nframes_t start, nframes_t dur)
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MidiStreamView::update_rec_regions (boost::shared_ptr<MidiModel> data, nframes_t start, nframes_t dur)
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{
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ENSURE_GUI_THREAD (bind (mem_fun (*this, &MidiStreamView::update_rec_regions), data, start, dur));
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@ -467,12 +467,25 @@ MidiStreamView::update_rec_regions (boost::shared_ptr<MidiBuffer> data, nframes_
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/* draw events */
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MidiRegionView* mrv = (MidiRegionView*)iter->second;
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for (MidiBuffer::iterator i = data->begin(); i != data->end(); ++i) {
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const MidiEvent& ev = *i;
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mrv->add_event(ev);
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mrv->extend_active_notes();
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// FIXME: slow
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for (size_t i=0; i < data->n_notes(); ++i) {
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const MidiModel::Note& note = data->note_at(i);
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if (note.time() > start + dur)
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break;
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if (note.time() >= start)
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if (data->note_mode() == Percussive || note.duration() > 0)
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mrv->add_note(note);
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else
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mrv->add_event(note.on_event());
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if (note.duration() > 0 && note.end_time() >= start)
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mrv->add_event(note.off_event());
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}
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mrv->extend_active_notes();
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}
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}
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@ -508,18 +521,18 @@ MidiStreamView::update_rec_regions (boost::shared_ptr<MidiBuffer> data, nframes_
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}
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void
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MidiStreamView::rec_data_range_ready (boost::shared_ptr<MidiBuffer> data, jack_nframes_t start, jack_nframes_t dur, boost::weak_ptr<Source> weak_src)
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MidiStreamView::rec_data_range_ready (jack_nframes_t start, jack_nframes_t dur, boost::weak_ptr<Source> weak_src)
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{
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// this is called from the butler thread for now
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ENSURE_GUI_THREAD(bind (mem_fun (*this, &MidiStreamView::rec_data_range_ready), data, start, dur, weak_src));
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ENSURE_GUI_THREAD(bind (mem_fun (*this, &MidiStreamView::rec_data_range_ready), start, dur, weak_src));
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boost::shared_ptr<SMFSource> src (boost::dynamic_pointer_cast<SMFSource>(weak_src.lock()));
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//cerr << src.get() << " MIDI READY: " << start << " * " << dur
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// << " -- " << data->size() << " events!" << endl;
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this->update_rec_regions (data, start, dur);
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this->update_rec_regions (src->model(), start, dur);
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}
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void
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@ -40,6 +40,7 @@ namespace ARDOUR {
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class PeakData;
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class MidiRegion;
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class Source;
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class MidiModel;
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}
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class PublicEditor;
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@ -95,8 +96,8 @@ class MidiStreamView : public StreamView
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private:
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void setup_rec_box ();
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void rec_data_range_ready (boost::shared_ptr<ARDOUR::MidiBuffer> data, jack_nframes_t start, jack_nframes_t dur, boost::weak_ptr<ARDOUR::Source> src);
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void update_rec_regions (boost::shared_ptr<ARDOUR::MidiBuffer> data, jack_nframes_t start, jack_nframes_t dur);
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void rec_data_range_ready (jack_nframes_t start, jack_nframes_t dur, boost::weak_ptr<ARDOUR::Source> src);
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void update_rec_regions (boost::shared_ptr<ARDOUR::MidiModel> data, jack_nframes_t start, jack_nframes_t dur);
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RegionView* add_region_view_internal (boost::shared_ptr<ARDOUR::Region>, bool wait_for_waves);
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void display_region(MidiRegionView* region_view, bool load_model);
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@ -1,5 +1,5 @@
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/*
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Copyright (C) 2000, 2007 Paul Davis
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Copyright (C) 2000-2007 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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@ -112,11 +112,14 @@ struct MidiEvent {
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inline uint8_t channel() const { return (_buffer[0] & 0x0F); }
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inline bool is_note_on() const { return (type() == MIDI_CMD_NOTE_ON); }
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inline bool is_note_off() const { return (type() == MIDI_CMD_NOTE_OFF); }
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inline bool is_cc() const { return (type() == MIDI_CMD_CONTROL); }
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inline bool is_note() const { return (is_note_on() || is_note_off()); }
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inline uint8_t note() const { return (_buffer[1]); }
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inline uint8_t velocity() const { return (_buffer[2]); }
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inline uint8_t cc_number() const { return (_buffer[1]); }
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inline uint8_t cc_value() const { return (_buffer[2]); }
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inline const Byte* buffer() const { return _buffer; }
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inline Byte* buffer() { return _buffer; }
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inline Byte*& buffer() { return _buffer; }
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private:
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double _time; /**< Sample index (or beat time) at which event is valid */
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@ -28,6 +28,7 @@
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#include <ardour/types.h>
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#include <ardour/midi_buffer.h>
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#include <ardour/midi_ring_buffer.h>
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#include <ardour/automatable.h>
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namespace ARDOUR {
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@ -41,7 +42,7 @@ class MidiSource;
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* note on and off events (controller data is not here since it's represented
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* as an AutomationList)
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*/
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class MidiModel : public boost::noncopyable {
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class MidiModel : public boost::noncopyable, public Automatable {
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public:
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struct Note {
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Note(double time=0, double dur=0, uint8_t note=0, uint8_t vel=0x40);
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@ -92,11 +93,13 @@ public:
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void append(const MidiBuffer& data);
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/** Resizes vector if necessary (NOT realtime safe) */
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void append(double time, size_t size, const Byte* in_buffer);
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//void append(double time, size_t size, const Byte* in_buffer);
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void append(const MidiEvent& ev);
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inline const Note& note_at(unsigned i) const { return _notes[i]; }
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inline size_t n_notes() const { return _notes.size(); }
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inline bool empty() const { return _notes.size() == 0 && _controls.size() == 0; }
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typedef std::vector<Note> Notes;
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@ -146,8 +149,13 @@ public:
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void apply_command(Command* cmd);
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bool edited() const { return _edited; }
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void set_edited(bool yn) { _edited = yn; }
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bool write_to(boost::shared_ptr<MidiSource> source);
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// MidiModel doesn't use the normal AutomationList serialisation code, as CC data is in the .mid
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XMLNode& get_state();
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int set_state(const XMLNode&) { return 0; }
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sigc::signal<void> ContentsChanged;
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private:
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@ -155,12 +163,13 @@ private:
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void add_note_unlocked(const Note& note);
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void remove_note_unlocked(const Note& note);
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#ifndef NDEBUG
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bool is_sorted() const;
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#endif
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void append_note_on(double time, uint8_t note, uint8_t velocity);
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void append_note_off(double time, uint8_t note);
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Session& _session;
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void append_cc(double time, uint8_t number, uint8_t value);
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Glib::RWLock _lock;
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@ -233,6 +233,9 @@ public:
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size_t write(double time, size_t size, const Byte* buf);
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bool read(double* time, size_t* size, Byte* buf);
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bool read_prefix(double* time, size_t* size);
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bool read_contents(size_t size, Byte* buf);
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size_t read(MidiBuffer& dst, nframes_t start, nframes_t end, nframes_t offset=0);
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};
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@ -250,6 +253,30 @@ MidiRingBuffer::read(double* time, size_t* size, Byte* buf)
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}
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/** Read the time and size of an event. This call MUST be immediately proceeded
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* by a call to read_contents (or the read pointer will be garabage).
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*/
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inline bool
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MidiRingBuffer::read_prefix(double* time, size_t* size)
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{
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bool success = MidiRingBufferBase<Byte>::full_read(sizeof(double), (Byte*)time);
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if (success)
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success = MidiRingBufferBase<Byte>::full_read(sizeof(size_t), (Byte*)size);
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return success;
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}
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/** Read the contenst of an event. This call MUST be immediately preceeded
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* by a call to read_prefix (or the returned even will be garabage).
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*/
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inline bool
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MidiRingBuffer::read_contents(size_t size, Byte* buf)
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{
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return MidiRingBufferBase<Byte>::full_read(size, buf);
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}
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inline size_t
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MidiRingBuffer::write(double time, size_t size, const Byte* buf)
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{
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@ -53,8 +53,6 @@ class MidiSource : public Source
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virtual nframes_t write (MidiRingBuffer& src, nframes_t cnt);
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virtual void append_event_unlocked(const MidiEvent& ev) = 0;
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virtual void flush() {}
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virtual void mark_for_remove() = 0;
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virtual void mark_streaming_midi_write_started (NoteMode mode);
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virtual void mark_streaming_write_started ();
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@ -72,8 +70,8 @@ class MidiSource : public Source
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static sigc::signal<void,MidiSource*> MidiSourceCreated;
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// The MIDI equivalent to "peaks" (but complete data)
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mutable sigc::signal<void,boost::shared_ptr<MidiBuffer>,nframes_t,nframes_t> ViewDataRangeReady;
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// Signal a range of recorded data is available for reading from model()
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mutable sigc::signal<void,nframes_t,nframes_t> ViewDataRangeReady;
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XMLNode& get_state ();
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int set_state (const XMLNode&);
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@ -82,12 +80,14 @@ class MidiSource : public Source
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virtual void destroy_model() = 0;
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void set_note_mode(NoteMode mode) { if (_model) _model->set_note_mode(mode); }
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virtual bool model_loaded() const { return _model_loaded; }
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boost::shared_ptr<MidiModel> model() { return _model; }
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void set_model(boost::shared_ptr<MidiModel> m) { _model = m; _model_loaded = true; }
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void set_model(boost::shared_ptr<MidiModel> m) { _model = m; }
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protected:
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virtual int flush_header() = 0;
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virtual int flush_footer() = 0;
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virtual nframes_t read_unlocked (MidiRingBuffer& dst, nframes_t start, nframes_t cnt, nframes_t stamp_offset) const = 0;
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virtual nframes_t write_unlocked (MidiRingBuffer& dst, nframes_t cnt) = 0;
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@ -98,7 +98,6 @@ class MidiSource : public Source
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mutable uint32_t _write_data_count; ///< modified in write()
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boost::shared_ptr<MidiModel> _model;
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bool _model_loaded;
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bool _writing;
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private:
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@ -20,6 +20,7 @@
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#ifndef __ardour_session_object_h__
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#define __ardour_session_object_h__
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#include <string>
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#include <pbd/statefuldestructible.h>
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namespace ARDOUR {
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@ -36,22 +37,27 @@ class Session;
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class SessionObject : public PBD::StatefulDestructible
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{
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public:
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SessionObject(Session& session, const string& name)
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SessionObject(Session& session, const std::string& name)
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: _session(session)
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, _name(name)
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{}
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Session& session() const { return _session; }
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const string& name() const { return _name; }
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const std::string& name() const { return _name; }
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virtual bool set_name (const string& str)
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{ if (_name != str) { _name = str; NameChanged(); } return true; }
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virtual bool set_name (const std::string& str) {
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if (_name != str) {
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_name = str;
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NameChanged();
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}
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return true;
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}
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sigc::signal<void> NameChanged;
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protected:
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Session& _session;
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string _name;
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std::string _name;
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};
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} // namespace ARDOUR
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@ -74,8 +74,6 @@ class SMFSource : public MidiSource {
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int flush_header ();
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int flush_footer ();
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void flush() { flush_header(); flush_footer(); }
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int move_to_trash (const string trash_dir_name);
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bool is_empty () const;
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@ -109,12 +107,14 @@ class SMFSource : public MidiSource {
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bool writable() const { return _flags & Writable; }
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int open();
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void seek_to_end();
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void write_footer();
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void write_chunk_header(char id[4], uint32_t length);
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void write_chunk(char id[4], uint32_t length, void* data);
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size_t write_var_len(uint32_t val);
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uint32_t read_var_len() const;
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int read_event(jack_midi_event_t& ev) const;
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int read_event(uint32_t* delta_t, uint32_t* size, Byte** buf) const;
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static const uint16_t _ppqn = 19200;
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@ -99,7 +99,7 @@ MidiModel::Note::operator=(const Note& copy)
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// MidiModel
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MidiModel::MidiModel(Session& s, size_t size)
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: _session(s)
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: Automatable(s, "midi model")
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, _notes(size)
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, _note_mode(Sustained)
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, _writing(false)
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@ -192,9 +192,10 @@ MidiModel::read (MidiRingBuffer& dst, nframes_t start, nframes_t nframes, nframe
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void
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MidiModel::start_write()
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{
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//cerr << "MM START WRITE, MODE = " << enum_2_string(_note_mode) << endl;
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_write_notes.clear();
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//cerr << "MM " << this << " START WRITE, MODE = " << enum_2_string(_note_mode) << endl;
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_lock.writer_lock();
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_writing = true;
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_write_notes.clear();
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}
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@ -210,7 +211,7 @@ MidiModel::end_write(bool delete_stuck)
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{
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assert(_writing);
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//cerr << "MM END WRITE: " << _notes.size() << " STUCK NOTES\n";
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//cerr << "MM " << this << " END WRITE: " << _notes.size() << " NOTES\n";
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if (_note_mode == Sustained && delete_stuck) {
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for (Notes::iterator n = _notes.begin(); n != _notes.end() ; ) {
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@ -225,6 +226,7 @@ MidiModel::end_write(bool delete_stuck)
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_write_notes.clear();
|
||||
_writing = false;
|
||||
_lock.writer_unlock();
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -241,20 +243,10 @@ MidiModel::append(const MidiBuffer& buf)
|
|||
{
|
||||
assert(_writing);
|
||||
|
||||
_lock.writer_lock();
|
||||
|
||||
for (MidiBuffer::const_iterator i = buf.begin(); i != buf.end(); ++i) {
|
||||
const MidiEvent& ev = *i;
|
||||
|
||||
assert(_notes.empty() || ev.time() >= _notes.back().time());
|
||||
|
||||
if (ev.type() == MIDI_CMD_NOTE_ON)
|
||||
append_note_on(ev.time(), ev.note(), ev.velocity());
|
||||
else if (ev.type() == MIDI_CMD_NOTE_OFF)
|
||||
append_note_off(ev.time(), ev.note());
|
||||
assert(_notes.empty() || (*i).time() >= _notes.back().time());
|
||||
append(*i);
|
||||
}
|
||||
|
||||
_lock.writer_unlock();
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -265,21 +257,27 @@ MidiModel::append(const MidiBuffer& buf)
|
|||
* and MUST be >= the latest event currently in the model.
|
||||
*/
|
||||
void
|
||||
MidiModel::append(double time, size_t size, const Byte* buf)
|
||||
MidiModel::append(const MidiEvent& ev)
|
||||
{
|
||||
assert(_notes.empty() || time >= _notes.back().time());
|
||||
assert(_notes.empty() || ev.time() >= _notes.back().time());
|
||||
assert(_writing);
|
||||
|
||||
if ((buf[0] & 0xF0) == MIDI_CMD_NOTE_ON)
|
||||
append_note_on(time, buf[1], buf[2]);
|
||||
else if ((buf[0] & 0xF0) == MIDI_CMD_NOTE_OFF)
|
||||
append_note_off(time, buf[1]);
|
||||
if (ev.is_note_on())
|
||||
append_note_on(ev.time(), ev.note(), ev.velocity());
|
||||
else if (ev.is_note_off())
|
||||
append_note_off(ev.time(), ev.note());
|
||||
else if (ev.is_cc())
|
||||
append_cc(ev.time(), ev.cc_number(), ev.cc_value());
|
||||
else
|
||||
printf("MM Unknown event type %X\n", ev.type());
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
MidiModel::append_note_on(double time, uint8_t note_num, uint8_t velocity)
|
||||
{
|
||||
//cerr << "MidiModel " << this << " note " << (int)note_num << " on @ " << time << endl;
|
||||
|
||||
assert(_writing);
|
||||
_notes.push_back(Note(time, 0, note_num, velocity));
|
||||
if (_note_mode == Sustained) {
|
||||
|
|
@ -294,6 +292,8 @@ MidiModel::append_note_on(double time, uint8_t note_num, uint8_t velocity)
|
|||
void
|
||||
MidiModel::append_note_off(double time, uint8_t note_num)
|
||||
{
|
||||
//cerr << "MidiModel " << this << " note " << (int)note_num << " off @ " << time << endl;
|
||||
|
||||
assert(_writing);
|
||||
if (_note_mode == Percussive) {
|
||||
//cerr << "MM Ignoring note off (percussive mode)" << endl;
|
||||
|
|
@ -321,6 +321,19 @@ MidiModel::append_note_off(double time, uint8_t note_num)
|
|||
}
|
||||
|
||||
|
||||
void
|
||||
MidiModel::append_cc(double time, uint8_t number, uint8_t value)
|
||||
{
|
||||
Parameter param(MidiCCAutomation, number);
|
||||
|
||||
//cerr << "MidiModel " << this << " add CC " << (int)number << " = " << (int)value
|
||||
// << " @ " << time << endl;
|
||||
|
||||
boost::shared_ptr<AutomationControl> control = Automatable::control(param, true);
|
||||
control->list()->fast_simple_add(time, (double)value);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
MidiModel::add_note_unlocked(const Note& note)
|
||||
{
|
||||
|
|
@ -340,6 +353,7 @@ MidiModel::remove_note_unlocked(const Note& note)
|
|||
}
|
||||
|
||||
/** Slow! for debugging only. */
|
||||
#ifndef NDEBUG
|
||||
bool
|
||||
MidiModel::is_sorted() const
|
||||
{
|
||||
|
|
@ -352,7 +366,7 @@ MidiModel::is_sorted() const
|
|||
|
||||
return true;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
/** Start a new command.
|
||||
*
|
||||
|
|
@ -509,3 +523,10 @@ MidiModel::write_to(boost::shared_ptr<MidiSource> source)
|
|||
return true;
|
||||
}
|
||||
|
||||
XMLNode&
|
||||
MidiModel::get_state()
|
||||
{
|
||||
XMLNode *node = new XMLNode("MidiModel");
|
||||
return *node;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -50,7 +50,6 @@ MidiSource::MidiSource (Session& s, string name)
|
|||
: Source (s, name, DataType::MIDI)
|
||||
, _timeline_position(0)
|
||||
, _model(new MidiModel(s))
|
||||
, _model_loaded (false)
|
||||
, _writing (false)
|
||||
{
|
||||
_read_data_count = 0;
|
||||
|
|
@ -61,7 +60,6 @@ MidiSource::MidiSource (Session& s, const XMLNode& node)
|
|||
: Source (s, node)
|
||||
, _timeline_position(0)
|
||||
, _model(new MidiModel(s))
|
||||
, _model_loaded (false)
|
||||
, _writing (false)
|
||||
{
|
||||
_read_data_count = 0;
|
||||
|
|
@ -106,7 +104,7 @@ nframes_t
|
|||
MidiSource::read (MidiRingBuffer& dst, nframes_t start, nframes_t cnt, nframes_t stamp_offset) const
|
||||
{
|
||||
Glib::Mutex::Lock lm (_lock);
|
||||
if (_model_loaded && _model) {
|
||||
if (_model) {
|
||||
/*const size_t n_events = */_model->read(dst, start, cnt, stamp_offset);
|
||||
//cout << "Read " << n_events << " events from model." << endl;
|
||||
return cnt;
|
||||
|
|
@ -164,9 +162,10 @@ MidiSource::mark_streaming_write_completed ()
|
|||
void
|
||||
MidiSource::session_saved()
|
||||
{
|
||||
flush();
|
||||
flush_header();
|
||||
flush_footer();
|
||||
|
||||
if (_model && _model_loaded && _model->edited()) {
|
||||
if (_model && _model->edited()) {
|
||||
string newname;
|
||||
const string basename = PBD::basename_nosuffix(_name);
|
||||
string::size_type last_dash = basename.find_last_of("-");
|
||||
|
|
@ -193,9 +192,9 @@ MidiSource::session_saved()
|
|||
|
||||
newsrc->set_model(_model);
|
||||
_model.reset();
|
||||
_model_loaded = false;
|
||||
|
||||
newsrc->flush();
|
||||
newsrc->flush_header();
|
||||
newsrc->flush_footer();
|
||||
|
||||
Switched.emit(newsrc);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -79,6 +79,8 @@ Quantize::run (boost::shared_ptr<Region> r)
|
|||
i->set_duration(new_dur);
|
||||
}
|
||||
|
||||
model->set_edited(true);
|
||||
|
||||
return 0;
|
||||
#if 0
|
||||
SourceList nsrcs;
|
||||
|
|
|
|||
|
|
@ -156,18 +156,24 @@ SMFSource::open()
|
|||
// We're making a new file
|
||||
} else {
|
||||
_fd = fopen(path().c_str(), "w+");
|
||||
_track_size = 0;
|
||||
_track_size = 4;
|
||||
|
||||
// Write a tentative header just to pad things out so writing happens in the right spot
|
||||
set_timeline_position(0);
|
||||
flush_header();
|
||||
|
||||
// Note file isn't a valid SMF at this point (no footer). Does it matter?
|
||||
write_footer();
|
||||
seek_to_end();
|
||||
}
|
||||
|
||||
return (_fd == 0) ? -1 : 0;
|
||||
}
|
||||
|
||||
void
|
||||
SMFSource::seek_to_end()
|
||||
{
|
||||
fseek(_fd, -4, SEEK_END);
|
||||
}
|
||||
|
||||
int
|
||||
SMFSource::flush_header ()
|
||||
{
|
||||
|
|
@ -202,14 +208,22 @@ SMFSource::flush_header ()
|
|||
int
|
||||
SMFSource::flush_footer()
|
||||
{
|
||||
//cerr << "SMF " << name() << " writing EOT\n";
|
||||
seek_to_end();
|
||||
write_footer();
|
||||
seek_to_end();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void
|
||||
SMFSource::write_footer()
|
||||
{
|
||||
//cerr << "SMF " << name() << " writing EOT at byte " << ftell(_fd) << endl;
|
||||
|
||||
fseek(_fd, 0, SEEK_END);
|
||||
write_var_len(0);
|
||||
char eot[3] = { 0xFF, 0x2F, 0x00 }; // end-of-track meta-event
|
||||
fwrite(eot, 1, 3, _fd);
|
||||
fflush(_fd);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/** Returns the offset of the first event in the file with a time past @a start,
|
||||
|
|
@ -243,57 +257,70 @@ SMFSource::find_first_event_after(nframes_t start)
|
|||
* will have it's time field set to it's delta time, in SMF tempo-based ticks, using the
|
||||
* rate given by ppqn() (it is the caller's responsibility to calculate a real time).
|
||||
*
|
||||
* \a size should be the capacity of \a buf. If it is not large enough, \a buf will
|
||||
* be freed and a new buffer allocated in its place, the size of which will be placed
|
||||
* in size.
|
||||
*
|
||||
* Returns event length (including status byte) on success, 0 if event was
|
||||
* skipped (eg a meta event), or -1 on EOF (or end of track).
|
||||
*/
|
||||
int
|
||||
SMFSource::read_event(jack_midi_event_t& ev) const
|
||||
SMFSource::read_event(uint32_t* delta_t, uint32_t* size, Byte** buf) const
|
||||
{
|
||||
// - 4 is for the EOT event, which we don't actually want to read
|
||||
//if (feof(_fd) || ftell(_fd) >= _header_size + _track_size - 4) {
|
||||
if (feof(_fd)) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
uint32_t delta_time = read_var_len();
|
||||
assert(delta_t);
|
||||
assert(size);
|
||||
assert(buf);
|
||||
|
||||
*delta_t = read_var_len();
|
||||
assert(!feof(_fd));
|
||||
int status = fgetc(_fd);
|
||||
|
||||
const int status = fgetc(_fd);
|
||||
assert(status != EOF); // FIXME die gracefully
|
||||
|
||||
//printf("Status @ %X = %X\n", (unsigned)ftell(_fd) - 1, status);
|
||||
|
||||
if (status == 0xFF) {
|
||||
assert(!feof(_fd));
|
||||
int type = fgetc(_fd);
|
||||
const int type = fgetc(_fd);
|
||||
if ((unsigned char)type == 0x2F) {
|
||||
//cerr << "SMF - hit EOT" << endl;
|
||||
return -1; // we hit the logical EOF anyway...
|
||||
//cerr << _name << " hit EOT" << endl;
|
||||
return -1;
|
||||
} else {
|
||||
ev.size = 0;
|
||||
ev.time = delta_time; // this is needed regardless
|
||||
*size = 0;
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
size_t event_size = midi_event_size((unsigned char)status) + 1;
|
||||
const int event_size = midi_event_size((unsigned char)status) + 1;
|
||||
if (event_size <= 0) {
|
||||
*size = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
// Make sure we have enough scratch buffer
|
||||
if (ev.size < event_size)
|
||||
ev.buffer = (Byte*)realloc(ev.buffer, event_size);
|
||||
if (*size < (unsigned)event_size)
|
||||
*buf = (Byte*)realloc(*buf, event_size);
|
||||
|
||||
ev.time = delta_time;
|
||||
ev.size = event_size;
|
||||
*size = event_size;
|
||||
|
||||
/*if (ev.buffer == NULL)
|
||||
ev.buffer = (Byte*)malloc(sizeof(Byte) * ev.size);*/
|
||||
|
||||
ev.buffer[0] = (unsigned char)status;
|
||||
fread(ev.buffer+1, 1, ev.size - 1, _fd);
|
||||
(*buf)[0] = (unsigned char)status;
|
||||
if (event_size > 1)
|
||||
fread((*buf) + 1, 1, *size - 1, _fd);
|
||||
|
||||
/*printf("%s read event: delta = %u, size = %zu, data = ", _name.c_str(), delta_time, ev.size);
|
||||
for (size_t i=0; i < ev.size; ++i) {
|
||||
printf("%X ", ev.buffer[i]);
|
||||
/*printf("%s read event: delta = %u, size = %u, data = ", _name.c_str(), *delta_t, *size);
|
||||
for (size_t i=0; i < *size; ++i) {
|
||||
printf("%X ", (*buf)[i]);
|
||||
}
|
||||
printf("\n");*/
|
||||
|
||||
return ev.size;
|
||||
return (int)*size;
|
||||
}
|
||||
|
||||
/** All stamps in audio frames */
|
||||
|
|
@ -307,24 +334,24 @@ SMFSource::read_unlocked (MidiRingBuffer& dst, nframes_t start, nframes_t cnt, n
|
|||
|
||||
_read_data_count = 0;
|
||||
|
||||
jack_midi_event_t ev; // time in SMF ticks
|
||||
ev.time = 0;
|
||||
ev.size = 0;
|
||||
ev.buffer = NULL; // read_event will allocate scratch as needed
|
||||
// Output parameters for read_event (which will allocate scratch in buffer as needed)
|
||||
uint32_t ev_delta_t = 0;
|
||||
uint32_t ev_size = 0;
|
||||
Byte* ev_buffer = 0;
|
||||
|
||||
size_t scratch_size = 0; // keep track of scratch and minimize reallocs
|
||||
size_t scratch_size = 0; // keep track of scratch to minimize reallocs
|
||||
|
||||
// FIXME: don't seek to start every read
|
||||
// FIXME: don't seek to start and search every read (brutal!)
|
||||
fseek(_fd, _header_size, 0);
|
||||
|
||||
// FIXME: assumes tempo never changes after start
|
||||
const double frames_per_beat = _session.tempo_map().tempo_at(_timeline_position).frames_per_beat(
|
||||
_session.engine().frame_rate());
|
||||
|
||||
uint64_t start_ticks = (uint64_t)((start / frames_per_beat) * _ppqn);
|
||||
const uint64_t start_ticks = (uint64_t)((start / frames_per_beat) * _ppqn);
|
||||
|
||||
while (!feof(_fd)) {
|
||||
int ret = read_event(ev);
|
||||
int ret = read_event(&ev_delta_t, &ev_size, &ev_buffer);
|
||||
if (ret == -1) { // EOF
|
||||
//cerr << "SMF - EOF\n";
|
||||
break;
|
||||
|
|
@ -332,29 +359,28 @@ SMFSource::read_unlocked (MidiRingBuffer& dst, nframes_t start, nframes_t cnt, n
|
|||
|
||||
if (ret == 0) { // meta-event (skipped)
|
||||
//cerr << "SMF - META\n";
|
||||
time += ev.time; // just accumulate delta time and ignore event
|
||||
time += ev_delta_t; // just accumulate delta time and ignore event
|
||||
continue;
|
||||
}
|
||||
|
||||
time += ev.time; // accumulate delta time
|
||||
ev.time = time; // set ev.time to actual time (relative to source start)
|
||||
time += ev_delta_t; // accumulate delta time
|
||||
|
||||
if (ev.time >= start_ticks) {
|
||||
if (ev.time < start_ticks + (cnt / frames_per_beat)) {
|
||||
break;
|
||||
} else {
|
||||
ev.time = (nframes_t)(((ev.time / (double)_ppqn) * frames_per_beat)) + stamp_offset;
|
||||
// write event time in absolute frames
|
||||
dst.write(ev.time, ev.size, ev.buffer);
|
||||
}
|
||||
}
|
||||
if (time >= start_ticks) {
|
||||
const nframes_t ev_frame_time = (nframes_t)(
|
||||
((time / (double)_ppqn) * frames_per_beat)) + stamp_offset;
|
||||
|
||||
_read_data_count += ev.size;
|
||||
|
||||
if (ev.size > scratch_size)
|
||||
scratch_size = ev.size;
|
||||
if (ev_frame_time <= start + cnt)
|
||||
dst.write(ev_frame_time, ev_size, ev_buffer);
|
||||
else
|
||||
ev.size = scratch_size;
|
||||
break;
|
||||
}
|
||||
|
||||
_read_data_count += ev_size;
|
||||
|
||||
if (ev_size > scratch_size)
|
||||
scratch_size = ev_size;
|
||||
else
|
||||
ev_size = scratch_size; // minimize realloc in read_event
|
||||
}
|
||||
|
||||
return cnt;
|
||||
|
|
@ -366,34 +392,53 @@ SMFSource::write_unlocked (MidiRingBuffer& src, nframes_t cnt)
|
|||
{
|
||||
_write_data_count = 0;
|
||||
|
||||
boost::shared_ptr<MidiBuffer> buf_ptr(new MidiBuffer(1024)); // FIXME: size?
|
||||
MidiBuffer& buf = *buf_ptr.get();
|
||||
src.read(buf, /*_length*/0, _length + cnt); // FIXME?
|
||||
double time;
|
||||
size_t size;
|
||||
|
||||
fseek(_fd, 0, SEEK_END);
|
||||
size_t buf_capacity = 4;
|
||||
Byte* buf = (Byte*)malloc(buf_capacity);
|
||||
|
||||
for (MidiBuffer::iterator i = buf.begin(); i != buf.end(); ++i) {
|
||||
MidiEvent& ev = *i;
|
||||
assert(ev.time() >= _timeline_position);
|
||||
ev.time() -= _timeline_position;
|
||||
assert(ev.time() >= _last_ev_time);
|
||||
if (_model && ! _model->currently_writing())
|
||||
_model->start_write();
|
||||
|
||||
append_event_unlocked(ev);
|
||||
while (true) {
|
||||
bool ret = src.full_peek(sizeof(double), (Byte*)&time);
|
||||
if (!ret || time > _length + cnt)
|
||||
break;
|
||||
|
||||
ret = src.read_prefix(&time, &size);
|
||||
if (!ret)
|
||||
break;
|
||||
|
||||
if (size > buf_capacity) {
|
||||
buf_capacity = size;
|
||||
buf = (Byte*)realloc(buf, size);
|
||||
}
|
||||
|
||||
ret = src.read_contents(size, buf);
|
||||
if (!ret) {
|
||||
cerr << "ERROR: Read time/size but not buffer, corrupt MIDI ring buffer" << endl;
|
||||
break;
|
||||
}
|
||||
|
||||
assert(time >= _timeline_position);
|
||||
time -= _timeline_position;
|
||||
assert(time >= _last_ev_time);
|
||||
|
||||
const MidiEvent ev(time, size, buf);
|
||||
append_event_unlocked(MidiEvent(ev));
|
||||
|
||||
if (_model)
|
||||
_model->append(ev);
|
||||
}
|
||||
|
||||
fflush(_fd);
|
||||
free(buf);
|
||||
|
||||
const nframes_t oldlen = _length;
|
||||
update_length(oldlen, cnt);
|
||||
|
||||
if (_model) {
|
||||
if ( ! _model->currently_writing()) {
|
||||
_model->start_write();
|
||||
}
|
||||
_model->append(buf);
|
||||
}
|
||||
|
||||
ViewDataRangeReady (buf_ptr, oldlen, cnt); /* EMIT SIGNAL */
|
||||
ViewDataRangeReady (oldlen, cnt); /* EMIT SIGNAL */
|
||||
|
||||
return cnt;
|
||||
}
|
||||
|
|
@ -480,6 +525,7 @@ SMFSource::mark_streaming_write_completed ()
|
|||
return;
|
||||
}
|
||||
|
||||
flush_header();
|
||||
flush_footer();
|
||||
|
||||
#if 0
|
||||
|
|
@ -784,9 +830,6 @@ SMFSource::read_var_len() const
|
|||
{
|
||||
assert(!feof(_fd));
|
||||
|
||||
//int offset = ftell(_fd);
|
||||
//cerr << "SMF - reading var len at " << offset << endl;
|
||||
|
||||
uint32_t value;
|
||||
unsigned char c;
|
||||
|
||||
|
|
@ -810,16 +853,18 @@ SMFSource::load_model(bool lock, bool force_reload)
|
|||
if (lock)
|
||||
Glib::Mutex::Lock lm (_lock);
|
||||
|
||||
if (_model && _model_loaded && ! force_reload) {
|
||||
assert(_model);
|
||||
if (_model && !force_reload && !_model->empty()) {
|
||||
//cerr << _name << " NOT reloading model " << _model.get() << " (" << _model->n_notes()
|
||||
// << " notes)" << endl;
|
||||
return;
|
||||
}
|
||||
|
||||
if (! _model) {
|
||||
cerr << "SMFSource: Loading new model " << _model.get() << endl;
|
||||
_model = boost::shared_ptr<MidiModel>(new MidiModel(_session));
|
||||
cerr << _name << " loaded new model " << _model.get() << endl;
|
||||
} else {
|
||||
cerr << "SMFSource: Reloading model " << _model.get() << endl;
|
||||
cerr << _name << " reloading model " << _model.get()
|
||||
<< " (" << _model->n_notes() << " notes)" <<endl;
|
||||
_model->clear();
|
||||
}
|
||||
|
||||
|
|
@ -828,10 +873,7 @@ SMFSource::load_model(bool lock, bool force_reload)
|
|||
fseek(_fd, _header_size, 0);
|
||||
|
||||
uint64_t time = 0; /* in SMF ticks */
|
||||
jack_midi_event_t ev;
|
||||
ev.time = 0;
|
||||
ev.size = 0;
|
||||
ev.buffer = NULL;
|
||||
MidiEvent ev;
|
||||
|
||||
size_t scratch_size = 0; // keep track of scratch and minimize reallocs
|
||||
|
||||
|
|
@ -839,35 +881,35 @@ SMFSource::load_model(bool lock, bool force_reload)
|
|||
const double frames_per_beat = _session.tempo_map().tempo_at(_timeline_position).frames_per_beat(
|
||||
_session.engine().frame_rate());
|
||||
|
||||
uint32_t delta_t = 0;
|
||||
int ret;
|
||||
while ((ret = read_event(ev)) >= 0) {
|
||||
while ((ret = read_event(&delta_t, &ev.size(), &ev.buffer())) >= 0) {
|
||||
|
||||
time += ev.time;
|
||||
|
||||
const double ev_time = (double)(time * frames_per_beat / (double)_ppqn); // in frames
|
||||
time += delta_t;
|
||||
|
||||
if (ret > 0) { // didn't skip (meta) event
|
||||
_model->append(ev_time, ev.size, ev.buffer);
|
||||
// make ev.time absolute time in frames
|
||||
ev.time() = (double)time * frames_per_beat / (double)_ppqn;
|
||||
|
||||
_model->append(ev);
|
||||
}
|
||||
|
||||
if (ev.size > scratch_size)
|
||||
scratch_size = ev.size;
|
||||
if (ev.size() > scratch_size)
|
||||
scratch_size = ev.size();
|
||||
else
|
||||
ev.size = scratch_size;
|
||||
ev.size() = scratch_size;
|
||||
}
|
||||
|
||||
_model->end_write(false); /* FIXME: delete stuck notes iff percussion? */
|
||||
_model->end_write(false);
|
||||
|
||||
free(ev.buffer);
|
||||
|
||||
_model_loaded = true;
|
||||
free(ev.buffer());
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
SMFSource::destroy_model()
|
||||
{
|
||||
cerr << "SMFSource: Destroying model " << _model.get() << endl;
|
||||
//cerr << _name << " destroying model " << _model.get() << endl;
|
||||
_model.reset();
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue