David Robillard
d357eca668
Anything related to the storage of events/values over a range of time lives in evoral. This includes MidiModel (Evoral::Sequence) and automation data (AutomationList (Evoral::ControlList), Automatable (Evoral::ControlSet), etc). libs/evoral synced with http://svn.drobilla.net/lad/trunk/evoral r1511. git-svn-id: svn://localhost/ardour2/branches/3.0@3754 d708f5d6-7413-0410-9779-e7cbd77b26cf
92 lines
2.4 KiB
C++
92 lines
2.4 KiB
C++
/*
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Copyright (C) 2006 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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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <cassert>
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#include <ardour/jack_midi_port.h>
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using namespace ARDOUR;
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JackMidiPort::JackMidiPort (const std::string& name, Flags flgs, MidiBuffer* buf)
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: Port (name, flgs)
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, JackPort (name, DataType::MIDI, flgs)
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, BaseMidiPort (name, flgs)
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{
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// MIDI ports always need a buffer since jack buffer format is different
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assert(buf);
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_buffer = buf;
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_own_buffer = false;
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}
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void
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JackMidiPort::cycle_start (nframes_t nframes, nframes_t offset)
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{
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/* FIXME: offset */
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_buffer->clear();
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assert(_buffer->size() == 0);
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if (_flags & IsOutput) {
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return;
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}
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// We're an input - copy Jack events to internal buffer
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void* jack_buffer = jack_port_get_buffer(_port, nframes);
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const nframes_t event_count = jack_midi_get_event_count(jack_buffer);
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assert(event_count < _buffer->capacity());
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jack_midi_event_t ev;
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for (nframes_t i=0; i < event_count; ++i) {
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jack_midi_event_get (&ev, jack_buffer, i);
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_buffer->push_back (ev);
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}
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assert(_buffer->size() == event_count);
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/*if (_buffer->size() > 0)
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cerr << "JackMIDIPort got " << event_count << " events (buf " << _buffer << ")" << endl;*/
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}
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void
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JackMidiPort::cycle_end (nframes_t nframes, nframes_t offset)
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{
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/* FIXME: offset */
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if (_flags & IsInput) {
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return;
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}
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// We're an output - copy events from source buffer to Jack buffer
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void* jack_buffer = jack_port_get_buffer (_port, nframes);
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jack_midi_clear_buffer (jack_buffer);
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for (MidiBuffer::iterator i = _buffer->begin(); i != _buffer->end(); ++i) {
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const Evoral::Event& ev = *i;
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// event times should be frames, relative to cycle start
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assert(ev.time() >= 0);
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assert(ev.time() < nframes);
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jack_midi_event_write (jack_buffer, (jack_nframes_t) ev.time(), ev.buffer(), ev.size());
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}
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}
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