diff options
author | Paul Davis <paul@linuxaudiosystems.com> | 2008-06-02 21:41:35 +0000 |
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committer | Paul Davis <paul@linuxaudiosystems.com> | 2008-06-02 21:41:35 +0000 |
commit | 449aab3c465bbbf66d221fac3d7ea559f1720357 (patch) | |
tree | 6843cc40c88250a132acac701271f1504cd2df04 /libs/ardour/ardour/midi_buffer.h | |
parent | 9c0d7d72d70082a54f823cd44c0ccda5da64bb6f (diff) |
rollback to 3428, before the mysterious removal of libs/* at 3431/3432
git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf
Diffstat (limited to 'libs/ardour/ardour/midi_buffer.h')
-rw-r--r-- | libs/ardour/ardour/midi_buffer.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/libs/ardour/ardour/midi_buffer.h b/libs/ardour/ardour/midi_buffer.h new file mode 100644 index 0000000000..699f461b17 --- /dev/null +++ b/libs/ardour/ardour/midi_buffer.h @@ -0,0 +1,102 @@ +/* + Copyright (C) 2006 Paul Davis + Author: Dave Robillard + + 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. +*/ + +#ifndef __ardour_midi_buffer_h__ +#define __ardour_midi_buffer_h__ + +#include <midi++/event.h> +#include <ardour/buffer.h> + +namespace ARDOUR { + + +/** Buffer containing 8-bit unsigned char (MIDI) data. */ +class MidiBuffer : public Buffer +{ +public: + MidiBuffer(size_t capacity); + ~MidiBuffer(); + + void silence(nframes_t dur, nframes_t offset=0); + + void read_from(const Buffer& src, nframes_t nframes, nframes_t offset); + + void copy(const MidiBuffer& copy); + + bool push_back(const MIDI::Event& event); + bool push_back(const jack_midi_event_t& event); + uint8_t* reserve(double time, size_t size); + + void resize(size_t); + + bool merge(const MidiBuffer& a, const MidiBuffer& b); + + struct iterator { + iterator(MidiBuffer& b, size_t i) : buffer(b), index(i) {} + + inline MIDI::Event& operator*() const { return buffer[index]; } + inline iterator& operator++() { ++index; return *this; } // prefix + inline bool operator!=(const iterator& other) const { return index != other.index; } + + MidiBuffer& buffer; + size_t index; + }; + + struct const_iterator { + const_iterator(const MidiBuffer& b, size_t i) : buffer(b), index(i) {} + + inline const MIDI::Event& operator*() const { return buffer[index]; } + inline const_iterator& operator++() { ++index; return *this; } // prefix + inline bool operator!=(const const_iterator& other) const { return index != other.index; } + + const MidiBuffer& buffer; + size_t index; + }; + + iterator begin() { return iterator(*this, 0); } + iterator end() { return iterator(*this, _size); } + + const_iterator begin() const { return const_iterator(*this, 0); } + const_iterator end() const { return const_iterator(*this, _size); } + +private: + + friend class iterator; + friend class const_iterator; + + const MIDI::Event& operator[](size_t i) const { assert(i < _size); return _events[i]; } + MIDI::Event& operator[](size_t i) { assert(i < _size); return _events[i]; } + + // FIXME: Eliminate this + static const size_t MAX_EVENT_SIZE = 4; // bytes + + /* We use _size as "number of events", so the size of _data is + * (_size * MAX_EVENT_SIZE) + */ + + /* FIXME: this is utter crap. rewrite as a flat/packed buffer like MidiRingBuffer */ + + MIDI::Event* _events; ///< Event structs that point to offsets in _data + uint8_t* _data; ///< MIDI, straight up. No time stamps. +}; + + +} // namespace ARDOUR + +#endif // __ardour_midi_buffer_h__ |