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Diffstat (limited to 'libs/ardour/midi_source.cc')
| -rw-r--r-- | libs/ardour/midi_source.cc | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/libs/ardour/midi_source.cc b/libs/ardour/midi_source.cc new file mode 100644 index 0000000000..4e83413c13 --- /dev/null +++ b/libs/ardour/midi_source.cc @@ -0,0 +1,206 @@ +/* + Copyright (C) 2006 Paul Davis + Written by Dave Robillard, 2006 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include <sys/stat.h> +#include <unistd.h> +#include <fcntl.h> +#include <poll.h> +#include <float.h> +#include <cerrno> +#include <ctime> +#include <cmath> +#include <iomanip> +#include <algorithm> + +#include <pbd/xml++.h> +#include <pbd/pthread_utils.h> +#include <pbd/basename.h> + +#include <ardour/midi_source.h> +#include <ardour/midi_ring_buffer.h> +#include <ardour/session.h> +#include <ardour/session_directory.h> +#include <ardour/source_factory.h> + +#include "i18n.h" + +using namespace std; +using namespace ARDOUR; +using namespace PBD; + +sigc::signal<void,MidiSource *> MidiSource::MidiSourceCreated; + +MidiSource::MidiSource (Session& s, string name) + : Source (s, name, DataType::MIDI) + , _timeline_position(0) + , _model(new MidiModel(this)) + , _writing (false) +{ + _read_data_count = 0; + _write_data_count = 0; +} + +MidiSource::MidiSource (Session& s, const XMLNode& node) + : Source (s, node) + , _timeline_position(0) + , _model(new MidiModel(this)) + , _writing (false) +{ + _read_data_count = 0; + _write_data_count = 0; + + if (set_state (node)) { + throw failed_constructor(); + } +} + +MidiSource::~MidiSource () +{ +} + +XMLNode& +MidiSource::get_state () +{ + XMLNode& node (Source::get_state()); + + if (_captured_for.length()) { + node.add_property ("captured-for", _captured_for); + } + + return node; +} + +int +MidiSource::set_state (const XMLNode& node) +{ + const XMLProperty* prop; + + Source::set_state (node); + + if ((prop = node.property ("captured-for")) != 0) { + _captured_for = prop->value(); + } + + return 0; +} + +nframes_t +MidiSource::midi_read (MidiRingBuffer& dst, nframes_t start, nframes_t cnt, nframes_t stamp_offset, nframes_t negative_stamp_offset) const +{ + Glib::Mutex::Lock lm (_lock); + if (_model) { + //const size_t n_events = + _model->read(dst, start, cnt, stamp_offset, negative_stamp_offset); + //cout << "Read " << n_events << " events from model." << endl; + return cnt; + } else { + return read_unlocked (dst, start, cnt, stamp_offset, negative_stamp_offset); + } +} + +nframes_t +MidiSource::midi_write (MidiRingBuffer& dst, nframes_t cnt) +{ + Glib::Mutex::Lock lm (_lock); + return write_unlocked (dst, cnt); +} + +bool +MidiSource::file_changed (string path) +{ + struct stat stat_file; + + int e1 = stat (path.c_str(), &stat_file); + + return ( !e1 ); +} + +void +MidiSource::mark_streaming_midi_write_started (NoteMode mode, nframes_t start_frame) +{ + set_timeline_position(start_frame); // why do I have a feeling this can break somehow... + + if (_model) { + _model->set_note_mode(mode); + _model->start_write(); + } + + _writing = true; +} + +void +MidiSource::mark_streaming_write_started () +{ + if (_model) + _model->start_write(); + + _writing = true; +} + +void +MidiSource::mark_streaming_write_completed () +{ + if (_model) + _model->end_write(false); // FIXME: param? + + _writing = false; +} + +void +MidiSource::session_saved() +{ + flush_header(); + flush_footer(); + + if (_model && _model->edited()) { + string newname; + const string basename = PBD::basename_nosuffix(_name); + string::size_type last_dash = basename.find_last_of("-"); + if (last_dash == string::npos || last_dash == basename.find_first_of("-")) { + newname = basename + "-1"; + } else { + stringstream ss(basename.substr(last_dash+1)); + unsigned write_count = 0; + ss >> write_count; + cerr << "WRITE COUNT: " << write_count << endl; + ++write_count; // start at 1 + ss.clear(); + ss << basename.substr(0, last_dash) << "-" << write_count; + newname = ss.str(); + } + + string newpath = _session.session_directory().midi_path().to_string() +"/"+ newname + ".mid"; + + boost::shared_ptr<MidiSource> newsrc = boost::dynamic_pointer_cast<MidiSource>( + SourceFactory::createWritable(DataType::MIDI, _session, newpath, 1, 0, true)); + + newsrc->set_timeline_position(_timeline_position); + _model->write_to(newsrc); + + // cyclic dependency here, ugly :( + newsrc->set_model(_model); + _model->set_midi_source(newsrc.get()); + + newsrc->flush_header(); + newsrc->flush_footer(); + + Switched.emit(newsrc); + } +} + |