SMF writing work.

git-svn-id: http://svn.drobilla.net/lad/raul@343 a436a847-0d15-0410-975c-d299462d15a1

4 files changed, 117 insertions, 3 deletions

diff --git a/raul/JackDriver.h b/raul/JackDriver.h
index 8ec2572..cc42c02 100644
--- a/raul/JackDriver.h
+++ b/raul/JackDriver.h
@@ -45,8 +45,9 @@ public:
 	void activate();
 	void deactivate();
 
-	bool is_attached() const { return (_client != NULL); }
-	bool is_realtime() const { return _client && jack_is_realtime(_client); }
+	bool is_activated() const { return _is_activated; }
+	bool is_attached()  const { return (_client != NULL); }
+	bool is_realtime()  const { return _client && jack_is_realtime(_client); }
 	
 	void start_transport() { jack_transport_start(_client); }
 	void stop_transport()  { jack_transport_stop(_client); }
diff --git a/raul/MIDISink.h b/raul/MIDISink.h
new file mode 100644
index 0000000..fe5f4e8
--- /dev/null
+++ b/raul/MIDISink.h
@@ -0,0 +1,41 @@
+/* This file is part of Raul.
+ * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
+ * 
+ * Raul 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.
+ * 
+ * Raul 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 RAUL_MIDISINK_H
+#define RAUL_MIDISINK_H
+
+#include <stdexcept>
+#include <raul/TimeSlice.h>
+#include <raul/Deletable.h>
+
+namespace Raul {
+
+
+/** Pure virtual base for anything you can write MIDI to.
+ */
+class MIDISink : public Deletable {
+public:
+	virtual void write_event(BeatTime             time,
+	                         size_t               ev_size,
+	                         const unsigned char* ev) throw (std::logic_error) = 0;
+};
+
+
+} // namespace Raul
+
+#endif // RAUL_MIDISINK_H
+
diff --git a/raul/Makefile.am b/raul/Makefile.am
index 70aa03a..b1d5f12 100644
--- a/raul/Makefile.am
+++ b/raul/Makefile.am
@@ -28,7 +28,9 @@ raulinclude_HEADERS = \
 	Thread.h \
 	WeakPtr.h \
 	TimeSlice.h \
-	Quantizer.h
+	Quantizer.h \
+	MIDISink.h \
+	SMFWriter.h 
 
 if WITH_LIBLO
 raulinclude_HEADERS += AtomLiblo.h
diff --git a/raul/SMFWriter.h b/raul/SMFWriter.h
new file mode 100644
index 0000000..b512cff
--- /dev/null
+++ b/raul/SMFWriter.h
@@ -0,0 +1,70 @@
+/* This file is part of Raul.
+ * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
+ * 
+ * Raul 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.
+ * 
+ * Raul 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 RAUL_SMFWRITER_H
+#define RAUL_SMFWRITER_H
+
+#include <stdexcept>
+#include <raul/MIDISink.h>
+
+namespace Raul {
+
+
+/** Standard Midi File (Type 0) Writer
+ */
+class SMFWriter : public Raul::MIDISink {
+public:
+	SMFWriter(unsigned short ppqn=1920);
+	~SMFWriter();
+
+	bool start(const std::string& filename,
+	           BeatTime           start_time=0) throw (std::logic_error);
+
+	void write_event(BeatTime             time,
+	                 size_t               ev_size,
+	                 const unsigned char* ev) throw (std::logic_error);
+
+	void flush();
+
+	void finish() throw (std::logic_error);
+
+protected:
+	static const uint32_t VAR_LEN_MAX = 0x0FFFFFFF;
+
+	void write_header();
+	void write_footer();
+
+	void     write_chunk_header(char id[4], uint32_t length);
+	void     write_chunk(char id[4], uint32_t length, void* data);
+	size_t   write_var_len(uint32_t val);
+	//uint32_t read_var_len() const;
+	//int      read_event(MidiEvent& ev) const;
+
+	std::string    _filename;
+	FILE*          _fd;
+	uint16_t       _ppqn;
+	Raul::BeatTime _start_time;
+	Raul::BeatTime _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 Raul
+
+#endif // RAUL_SMFWRITER_H
+