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/*
Copyright (C) 2009 Paul Davis
Author: David 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_lv2_event_buffer_h__
#define __ardour_lv2_event_buffer_h__
#include "lv2ext/lv2_event.h"
#include "lv2ext/lv2_event_helpers.h"
namespace ARDOUR {
class LV2EventBuffer {
public:
LV2EventBuffer(size_t capacity);
~LV2EventBuffer();
inline LV2_Event_Buffer* data() { return _data; }
inline const LV2_Event_Buffer* data() const { return _data; }
inline void rewind() const { lv2_event_begin(&_iter, _data); }
inline void reset() {
_latest_frames = 0;
_latest_subframes = 0;
_data->event_count = 0;
_data->size = 0;
rewind();
}
inline size_t event_count() const { return _data->event_count; }
inline uint32_t capacity() const { return _data->capacity; }
inline uint32_t size() const { return _data->size; }
inline uint32_t latest_frames() const { return _latest_frames; }
inline uint32_t latest_subframes() const { return _latest_subframes; }
bool increment() const;
bool is_valid() const;
bool get_event(uint32_t* frames,
uint32_t* subframes,
uint16_t* type,
uint16_t* size,
uint8_t** data) const;
bool append(uint32_t frames,
uint32_t subframes,
uint16_t type,
uint16_t size,
const uint8_t* data);
bool append(const LV2_Event_Buffer* buf);
private:
LV2_Event_Buffer* _data; ///< Contents
mutable LV2_Event_Iterator _iter; ///< Iterator into _data
uint32_t _latest_frames; ///< Latest time of all events (frames)
uint32_t _latest_subframes; ///< Latest time of all events (subframes)
};
} // namespace ARDOUR
#endif // __ardour_lv2_event_buffer_h__
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