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-rw-r--r--src/engine/MidiNoteNode.h87
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diff --git a/src/engine/MidiNoteNode.h b/src/engine/MidiNoteNode.h
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--- a/src/engine/MidiNoteNode.h
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-/* This file is part of Om. Copyright (C) 2006 Dave Robillard.
- *
- * Om 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.
- *
- * Om 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 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.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef MIDINOTENODE_H
-#define MIDINOTENODE_H
-
-#include <string>
-#include "InternalNode.h"
-#include "util/types.h"
-
-using std::string;
-
-namespace Om {
-
-class MidiMessage;
-template <typename T> class InputPort;
-template <typename T> class OutputPort;
-
-
-/** MIDI note input node.
- *
- * For pitched instruments like keyboard, etc.
- *
- * \ingroup engine
- */
-class MidiNoteNode : public InternalNode
-{
-public:
- MidiNoteNode(const string& path, size_t poly, Patch* parent, samplerate srate, size_t buffer_size);
- ~MidiNoteNode();
-
- void run(size_t nframes);
-
- void note_on(uchar note_num, uchar velocity, samplecount offset);
- void note_off(uchar note_num, samplecount offset);
- void all_notes_off(samplecount offset);
-
- void sustain_on();
- void sustain_off(samplecount offset);
-
-private:
-
- /** Key, one for each key on the keyboard */
- struct Key {
- enum State { OFF, ON_ASSIGNED, ON_UNASSIGNED };
- Key() : state(OFF), voice(0), time(0) {}
- State state; size_t voice; samplecount time;
- };
-
- /** Voice, one of these always exists for each voice */
- struct Voice {
- enum State { FREE, ACTIVE, HOLDING };
- Voice() : state(FREE), note(0) {}
- State state; uchar note; samplecount time;
- };
-
- float note_to_freq(int num);
- void free_voice(size_t voice, samplecount offset);
-
- Voice* m_voices;
- Key m_keys[128];
- bool m_sustain; ///< Whether or not hold pedal is depressed
-
- InputPort<MidiMessage>* m_midi_in_port;
- OutputPort<sample>* m_freq_port;
- OutputPort<sample>* m_vel_port;
- OutputPort<sample>* m_gate_port;
- OutputPort<sample>* m_trig_port;
-};
-
-
-} // namespace Om
-
-#endif // MIDINOTENODE_H