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-rw-r--r--src/libs/engine/MidiNoteNode.hpp88
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diff --git a/src/libs/engine/MidiNoteNode.hpp b/src/libs/engine/MidiNoteNode.hpp
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--- a/src/libs/engine/MidiNoteNode.hpp
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-/* This file is part of Ingen.
- * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
- *
- * Ingen 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.
- *
- * Ingen 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.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef MIDINOTENODE_H
-#define MIDINOTENODE_H
-
-#include <string>
-#include "types.hpp"
-#include "NodeBase.hpp"
-
-namespace Ingen {
-
-class InputPort;
-class OutputPort;
-
-
-/** MIDI note input node.
- *
- * For pitched instruments like keyboard, etc.
- *
- * \ingroup engine
- */
-class MidiNoteNode : public NodeBase
-{
-public:
- MidiNoteNode(const std::string& path, bool polyphonic, PatchImpl* parent, SampleRate srate, size_t buffer_size);
- ~MidiNoteNode();
-
- bool prepare_poly(uint32_t poly);
- bool apply_poly(Raul::Maid& maid, uint32_t poly);
-
- void process(ProcessContext& context);
-
- void note_on(ProcessContext& context, uchar note_num, uchar velocity, FrameTime time);
- void note_off(ProcessContext& context, uchar note_num, FrameTime time);
- void all_notes_off(ProcessContext& context, FrameTime time);
-
- void sustain_on(ProcessContext& context, FrameTime time);
- void sustain_off(ProcessContext& context, FrameTime time);
-
-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; uint32_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(ProcessContext& context, uint32_t voice, FrameTime time);
-
- Raul::Array<Voice>* _voices;
- Raul::Array<Voice>* _prepared_voices;
- Key _keys[128];
- bool _sustain; ///< Whether or not hold pedal is depressed
-
- InputPort* _midi_in_port;
- OutputPort* _freq_port;
- OutputPort* _vel_port;
- OutputPort* _gate_port;
- OutputPort* _trig_port;
-};
-
-
-} // namespace Ingen
-
-#endif // MIDINOTENODE_H