/*
- Copyright (C) 2006-2009 Paul Davis
- Author: Dave Robillard
-
+ Copyright (C) 2006-2009 Paul Davis
+ Author: David 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 <evoral/midi_util.h>
-#include <midi++/event.h>
-#include <ardour/buffer.h>
-#include <ardour/event_type_map.h>
+#include "evoral/midi_util.h"
+#include "midi++/event.h"
+#include "ardour/buffer.h"
+#include "ardour/event_type_map.h"
namespace ARDOUR {
class MidiBuffer : public Buffer
{
public:
- typedef double TimeType;
+ typedef framepos_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 (framecnt_t nframes, framecnt_t offset = 0);
+ void read_from (const Buffer& src, framecnt_t nframes, framecnt_t dst_offset = 0, framecnt_t src_offset = 0);
+ void merge_from (const Buffer& src, framecnt_t nframes, framecnt_t dst_offset = 0, framecnt_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);
- uint8_t* reserve(double time, size_t size);
+ bool push_back(TimeType time, size_t size, const uint8_t* data);
+ uint8_t* reserve(TimeType time, size_t size);
void resize(size_t);
- bool merge(const MidiBuffer& a, const MidiBuffer& b);
bool merge_in_place(const MidiBuffer &other);
-
- template<typename B, typename E>
- struct iterator_base {
- iterator_base<B,E>(B& b, size_t o) : buffer(b), offset(o) {}
- inline E operator*() const {
- uint8_t* ev_start = buffer._data + offset + sizeof(TimeType);
- return E(EventTypeMap::instance().midi_event_type(*ev_start),
- *(TimeType*)(buffer._data + offset),
- Evoral::midi_event_size(*ev_start) + 1, ev_start);
+
+ template<typename BufferType, typename EventType>
+ class iterator_base {
+ public:
+ iterator_base<BufferType, EventType>(BufferType& b, framecnt_t o)
+ : buffer(&b), offset(o) {}
+ iterator_base<BufferType, EventType>(const iterator_base<BufferType,EventType>& o)
+ : buffer (o.buffer), offset(o.offset) {}
+
+ inline iterator_base<BufferType,EventType> operator= (const iterator_base<BufferType,EventType>& o) {
+ if (&o != this) {
+ buffer = o.buffer;
+ offset = o.offset;
+ }
+ return *this;
+ }
+
+ 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<B,E>& operator++() {
- uint8_t* ev_start = buffer._data + offset + sizeof(TimeType);
- offset += sizeof(TimeType) + Evoral::midi_event_size(*ev_start) + 1;
+
+ 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<B,E>& other) const {
- return (&buffer != &other.buffer) || (offset != other.offset);
+ inline bool operator!=(const iterator_base<BufferType, EventType>& other) const {
+ return (buffer != other.buffer) || (offset != other.offset);
+ }
+ inline bool operator==(const iterator_base<BufferType, EventType>& other) const {
+ return (buffer == other.buffer) && (offset == other.offset);
}
- B& buffer;
- size_t 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;
const_iterator begin() const { return const_iterator(*this, 0); }
const_iterator end() const { return const_iterator(*this, _size); }
+ iterator erase(const iterator& i) {
+ assert (i.buffer == this);
+ uint8_t* ev_start = _data + i.offset + sizeof (TimeType);
+ int event_size = Evoral::midi_event_size (ev_start);
+
+ if (event_size < 0) {
+ /* unknown size, sysex: return end() */
+ return end();
+ }
+
+ size_t total_data_deleted = sizeof(TimeType) + event_size;
+
+ if (i.offset + total_data_deleted >= _size) {
+ _size = 0;
+ return end();
+ }
+
+ /* we need to avoid the temporary malloc that memmove would do,
+ so copy by hand. remember: this is small amounts of data ...
+ */
+ size_t a, b;
+ for (a = i.offset, b = i.offset + total_data_deleted; b < _size; ++b, ++a) {
+ _data[a] = _data[b];
+ }
+
+ _size -= total_data_deleted;
+
+ /* all subsequent iterators are now invalid, and the one we
+ * return should refer to the event we copied, which was after
+ * the one we just erased.
+ */
+
+ return iterator (*this, i.offset);
+ }
+
+ uint8_t* data() const { return _data; }
+
+ /**
+ * returns true if the message with the second argument as its MIDI
+ * status byte should preceed the message with the first argument as
+ * its MIDI status byte.
+ */
+ static bool second_simultaneous_midi_byte_is_first (uint8_t, uint8_t);
+
private:
friend class iterator_base< MidiBuffer, Evoral::MIDIEvent<TimeType> >;
friend class iterator_base< const MidiBuffer, const Evoral::MIDIEvent<TimeType> >;
-
- size_t _size; ///< Size in bytes of used portion of _data
+
uint8_t* _data; ///< timestamp, event, timestamp, event, ...
};
projects / ardour.git / blobdiff