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Diffstat (limited to 'libs/evoral/evoral/OldSMF.hpp')
-rw-r--r-- | libs/evoral/evoral/OldSMF.hpp | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/libs/evoral/evoral/OldSMF.hpp b/libs/evoral/evoral/OldSMF.hpp new file mode 100644 index 0000000000..e9f2f47bfe --- /dev/null +++ b/libs/evoral/evoral/OldSMF.hpp @@ -0,0 +1,84 @@ +/* This file is part of Evoral. + * Copyright(C) 2008 Dave Robillard <http://drobilla.net> + * Copyright(C) 2000-2008 Paul Davis + * + * Evoral 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. + * + * Evoral 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 EVORAL_SMF_HPP +#define EVORAL_SMF_HPP + +#include "evoral/MIDIFile.hpp" + +namespace Evoral { + +template<typename Time> class Event; +template<typename Time> class EventRingBuffer; + + +/** Standard Midi File (Type 0) + */ +template<typename Time> +class SMF : public MIDIFile<Time> { +public: + SMF(); + virtual ~SMF(); + + void seek_to_start() const; + + uint16_t ppqn() const { return _ppqn; } + bool is_empty() const { return _empty; } + bool eof() const { return feof(_fd); } + + Time last_event_time() const { return _last_ev_time; } + + void begin_write(); + void append_event_delta(uint32_t delta_t, const Event<Time>& ev); + void end_write() THROW_FILE_ERROR; + + void flush(); + int flush_header(); + int flush_footer(); + +protected: + int open(const std::string& path) THROW_FILE_ERROR; + void close() THROW_FILE_ERROR; + + int read_event(uint32_t* delta_t, uint32_t* size, uint8_t** buf) const; + +private: + /** Used by flush_footer() to find the position to write the footer */ + void seek_to_footer_position(); + + /** Write the track footer at the current seek position */ + void write_footer(); + + void write_chunk_header(const char id[4], uint32_t length); + void write_chunk(const char id[4], uint32_t length, void* data); + size_t write_var_len(uint32_t val); + uint32_t read_var_len() const; + + static const uint16_t _ppqn = 19200; + + FILE* _fd; + Time _last_ev_time; ///< last frame time written, relative to source start + uint32_t _track_size; + uint32_t _header_size; ///< size of SMF header, including MTrk chunk header + bool _empty; ///< true iff file contains(non-empty) events +}; + +}; /* namespace Evoral */ + +#endif /* EVORAL_SMF_HPP */ + |