1 files changed, 73 insertions, 0 deletions
diff --git a/src/engine/SMFWriter.hpp b/src/engine/SMFWriter.hpp
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+++ b/src/engine/SMFWriter.hpp
@@ -0,0 +1,73 @@
+/*
+  This file is part of Machina.
+  Copyright 2007-2013 David Robillard <http://drobilla.net>
+
+  Machina 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 3 of the License, or any later version.
+
+  Machina 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 Machina.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef MACHINA_SMF_WRITER_HPP
+#define MACHINA_SMF_WRITER_HPP
+
+#include <stdexcept>
+#include <string>
+
+#include "raul/TimeStamp.hpp"
+
+#include "MIDISink.hpp"
+
+namespace machina {
+
+/** Standard Midi File (Type 0) Writer
+ * \ingroup raul
+ */
+class SMFWriter
+	: public MIDISink
+{
+public:
+	explicit SMFWriter(Raul::TimeUnit unit);
+	~SMFWriter();
+
+	bool start(const std::string& filename,
+	           Raul::TimeStamp    start_time);
+
+	Raul::TimeUnit unit() const { return _unit; }
+
+	void write_event(Raul::TimeStamp      time,
+	                 size_t               ev_size,
+	                 const unsigned char* ev);
+
+	void flush();
+
+	void finish();
+
+protected:
+	static const uint32_t VAR_LEN_MAX = 0x0FFFFFFF;
+
+	void write_header();
+	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);
+
+	std::string     _filename;
+	FILE*           _fd;
+	Raul::TimeUnit  _unit;
+	Raul::TimeStamp _start_time;
+	Raul::TimeStamp _last_ev_time; ///< Time last event was written relative to _start_time
+	uint32_t        _track_size;
+	uint32_t        _header_size; ///< size of SMF header, including MTrk chunk header
+};
+
+} // namespace machina
+
+#endif // MACHINA_SMF_WRITER_HPP