LibSMF -> SMF

git-svn-id: svn://localhost/ardour2/branches/3.0@4552 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 81 insertions, 0 deletions

diff --git a/libs/evoral/evoral/SMF.hpp b/libs/evoral/evoral/SMF.hpp
new file mode 100644
index 0000000000..be1ed667cc
--- /dev/null
+++ b/libs/evoral/evoral/SMF.hpp
@@ -0,0 +1,81 @@
+/* This file is part of Evoral.
+ * Copyright(C) 2008 Dave Robillard <http://drobilla.net>
+ * Copyright(C) 2000-2008 Paul Davis
+ * Author: Hans Baier
+ * 
+ * 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 <cassert>
+#include "evoral/MIDIFile.hpp"
+
+struct smf_struct;
+struct smf_track_struct;
+typedef smf_struct smf_t;
+typedef smf_track_struct smf_track_t;
+
+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() : _last_ev_time(0), _smf(0), _smf_track(0), _empty(true) {};
+	virtual ~SMF();
+
+	void seek_to_start() const;
+	
+	uint16_t ppqn()     const { return _ppqn; }
+	bool     is_empty() const { return _empty; }
+	bool     eof()      const { assert(false); return true; }
+	
+	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() { return 0; }
+	int  flush_footer() { return 0; }
+
+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:
+	static const uint16_t _ppqn = 19200;
+	
+	Time _last_ev_time; ///< last frame time written, relative to source start
+	
+	std::string  _path;
+	smf_t*       _smf;
+	smf_track_t* _smf_track;
+
+	bool         _empty; ///< true iff file contains(non-empty) events
+};
+
+}; /* namespace Evoral */
+
+#endif /* EVORAL_SMF_HPP */
+