/usr/include/tse3/MidiEcho.h is in libtse3-dev 0.3.1-4.3ubuntu1.
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* @(#)MidiEcho.h 3.00 22 February 2000
*
* Copyright (c) 2000 Pete Goodliffe (pete@cthree.org)
*
* This file is part of TSE3 - the Trax Sequencer Engine version 3.00.
*
* This library is modifiable/redistributable under the terms of the GNU
* General Public License.
*
* You should have received a copy of the GNU General Public License along
* with this program; see the file COPYING. If not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#ifndef TSE3_MIDIECHO_H
#define TSE3_MIDIECHO_H
#include "tse3/listen/MidiEcho.h"
#include "tse3/Notifier.h"
#include "tse3/MidiFilter.h"
namespace TSE3
{
class MidiScheduler;
/**
* The MidiEcho class provides a software equivalent to the MIDI Thru
* port found on some MIDI equipment.
*
* MIDI Thru provides an exact copy of the MIDI data recieved at the MIDI
* In port allowing a number of MIDI devices to be 'daisy-chained' together.
*
* Many MIDI interfaces, however, do not provide a MIDI Thru capability
* so the MidiEcho class is used to emulate it in software.
*
* The MidiEcho class contains a @ref MidiFilter to provide some
* software filtering of the incoming/outgoing data. You can disable
* the MidiEcho functionality by setting the filter's status to false.
*
* The @ref Transport class creates and maintains an object of this class
* to do good things.
*
* @short Software MIDI Thru port
* @author Pete Goodliffe
* @version 3.00
*/
class MidiEcho : public Notifier<MidiEchoListener>
{
public:
/**
* MidiEcho defaults to being off.
*
* @param scheduler The MidiScheduler output is sent to.
*/
MidiEcho(MidiScheduler *scheduler);
/**
* Returns the MIDI filter that effects MIDI echo.
*
* You can use this filter to force which channel and port the
* MIDI echo output appears on.
*
* @return The MidiEcho object's @ref MidiFilter
*/
MidiFilter *filter() { return &_filter; }
/**
* Returns the channel that MIDI echoing is accepted from.
* A value of @ref MidiCommand::AllChannels means every channel.
*
* Note that this value doesn't set where MIDI echo output is
* sent to, but from where it is received.
*
* @return Incoming MIDI channel
* @see setChannel
*/
int channel() const { return _channel; }
/**
* Sets the channel that MIDI echoing is accepted from.
*
* Note that this value doesn't set where MIDI echo output is
* sent to, but from where it is received.
*
* @param c New incoming MIDI channel
* @see channel
*/
void setChannel(int c);
/**
* Returns the port that MIDI echoing is accepted from.
* A value of @ref MidiScheduler::AllPorts means every port.
*
* Note that this value doesn't set where MIDI echo output is
* sent to, but from where it is received.
*
* @return Incoming MIDI port
* @see setPort
*/
int port() const { return _port; }
/**
* Sets the port that MIDI echoing is accepted from.
*
* Note that this value doesn't set where MIDI echo output is
* sent to, but from where it is received.
*
* @param p New incoming MIDI port
* @see port
*/
void setPort(int p);
/**
* Echo the specified command. This method should be called for
* all recieved MIDI data, as soon as possible after it has
* been recieved (this is done by the @ref Transport object).
*
* Although the input parameter is a @ref MidiEvent, only the
* 'data' part, a @ref MidiCommand, is used.
*
* @param command The MIDI command to echo
*/
void echo(MidiEvent command);
private:
MidiScheduler *scheduler;
MidiFilter _filter;
int _channel;
int _port;
};
}
#endif
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