Separate MidiBuffer and AudioBuffer into separate headers (trims the dependency tree, and too large to be in one anyway).

git-svn-id: svn://localhost/ardour2/trunk@2081 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 64 insertions, 0 deletions

diff --git a/libs/ardour/ardour/midi_buffer.h b/libs/ardour/ardour/midi_buffer.h
new file mode 100644
index 0000000000..7e69cc9014
--- /dev/null
+++ b/libs/ardour/ardour/midi_buffer.h
@@ -0,0 +1,64 @@
+/*
+    Copyright (C) 2006 Paul Davis 
+	Author: Dave 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_midi_buffer_h__
+#define __ardour_midi_buffer_h__
+
+#include <ardour/buffer.h>
+
+namespace ARDOUR {
+
+
+/** Buffer containing 8-bit unsigned char (MIDI) data. */
+class MidiBuffer : public Buffer
+{
+public:
+	MidiBuffer(size_t capacity);
+	
+	~MidiBuffer();
+
+	void silence(nframes_t dur, nframes_t offset=0);
+	
+	void read_from(const Buffer& src, nframes_t nframes, nframes_t offset);
+
+	bool  push_back(const ARDOUR::MidiEvent& event);
+	bool  push_back(const jack_midi_event_t& event);
+	Byte* reserve(double time, size_t size);
+	
+	const MidiEvent& operator[](size_t i) const { assert(i < _size); return _events[i]; }
+	MidiEvent& operator[](size_t i) { assert(i < _size); return _events[i]; }
+
+	static size_t max_event_size() { return MAX_EVENT_SIZE; }
+
+private:
+	// FIXME: Jack needs to tell us this
+	static const size_t MAX_EVENT_SIZE = 4; // bytes
+	
+	/* We use _size as "number of events", so the size of _data is
+	 * (_size * MAX_EVENT_SIZE)
+	 */
+
+	MidiEvent* _events; ///< Event structs that point to offsets in _data
+	Byte*      _data;   ///< MIDI, straight up.  No time stamps.
+};
+
+
+} // namespace ARDOUR
+
+#endif // __ardour_midi_buffer_h__