X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fardour%2Fmidi_buffer.h;h=b3ed093df75b592c803b59e6aaff24bd342612dc;hb=ba0458cf1f6c69366e89631d8fff916ad183d768;hp=7e69cc9014496e7c1c74886155d85f4c20b8ad37;hpb=44867662a3d020e042714d1c5e948b8c3afea941;p=ardour.git

diff --git a/libs/ardour/ardour/midi_buffer.h b/libs/ardour/ardour/midi_buffer.h
index 7e69cc9014..b3ed093df7 100644
--- a/libs/ardour/ardour/midi_buffer.h
+++ b/libs/ardour/ardour/midi_buffer.h
@@ -1,17 +1,17 @@
 /*
-    Copyright (C) 2006 Paul Davis 
-	Author: Dave Robillard
-    
+    Copyright (C) 2006-2009 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.
@@ -20,7 +20,10 @@
 #ifndef __ardour_midi_buffer_h__
 #define __ardour_midi_buffer_h__
 
-#include <ardour/buffer.h>
+#include "evoral/midi_util.h"
+#include "midi++/event.h"
+#include "ardour/buffer.h"
+#include "ardour/event_type_map.h"
 
 namespace ARDOUR {
 
@@ -29,33 +32,75 @@ namespace ARDOUR {
 class MidiBuffer : public Buffer
 {
 public:
+	typedef nframes_t TimeType;
+
 	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);
+	void silence (nframes_t nframes, nframes_t offset = 0);
+	void read_from (const Buffer& src, nframes_t nframes, nframes_t dst_offset = 0, nframes_t src_offset = 0);
+	void merge_from (const Buffer& src, nframes_t nframes, nframes_t dst_offset = 0, nframes_t src_offset = 0);
+
+	void copy(const MidiBuffer& copy);
+
+	bool     push_back(const Evoral::MIDIEvent<TimeType>& event);
+	bool     push_back(const jack_midi_event_t& event);
+	bool     push_back(TimeType time, size_t size, const uint8_t* data);
+	uint8_t* reserve(TimeType time, size_t size);
 
-	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]; }
+	void resize(size_t);
 
-	static size_t max_event_size() { return MAX_EVENT_SIZE; }
+	bool merge(const MidiBuffer& a, const MidiBuffer& b);
+	bool merge_in_place(const MidiBuffer &other);
+
+	template<typename BufferType, typename EventType>
+	struct iterator_base {
+		iterator_base<BufferType, EventType>(BufferType& b, nframes_t o) : buffer(b), offset(o) {}
+		inline EventType operator*() const {
+			uint8_t* ev_start = buffer._data + offset + sizeof(TimeType);
+			int event_size = Evoral::midi_event_size(ev_start);
+			assert(event_size >= 0);
+			return EventType(EventTypeMap::instance().midi_event_type(*ev_start),
+					*((TimeType*)(buffer._data + offset)),
+					event_size, ev_start);
+		}
+		inline EventType operator*() {
+			uint8_t* ev_start = buffer._data + offset + sizeof(TimeType);
+			int event_size = Evoral::midi_event_size(ev_start);
+			assert(event_size >= 0);
+			return EventType(EventTypeMap::instance().midi_event_type(*ev_start),
+					*((TimeType*)(buffer._data + offset)),
+					event_size, ev_start);
+		}
+
+		inline iterator_base<BufferType, EventType>& operator++() {
+			uint8_t* ev_start = buffer._data + offset + sizeof(TimeType);
+			int event_size = Evoral::midi_event_size(ev_start);
+			assert(event_size >= 0);
+			offset += sizeof(TimeType) + event_size;
+			return *this;
+		}
+		inline bool operator!=(const iterator_base<BufferType, EventType>& other) const {
+			return (&buffer != &other.buffer) || (offset != other.offset);
+		}
+		BufferType&     buffer;
+		size_t          offset;
+	};
+
+	typedef iterator_base< MidiBuffer, Evoral::MIDIEvent<TimeType> >             iterator;
+	typedef iterator_base< const MidiBuffer, const Evoral::MIDIEvent<TimeType> > const_iterator;
+
+	iterator begin() { return iterator(*this, 0); }
+	iterator end()   { return iterator(*this, _size); }
+
+	const_iterator begin() const { return const_iterator(*this, 0); }
+	const_iterator end()   const { return const_iterator(*this, _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.
+	friend class iterator_base< MidiBuffer, Evoral::MIDIEvent<TimeType> >;
+	friend class iterator_base< const MidiBuffer, const Evoral::MIDIEvent<TimeType> >;
+
+	uint8_t* _data; ///< timestamp, event, timestamp, event, ...
 };