/usr/include/tse3/Mixer.h is in libtse3-dev 0.3.1-4.3.
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* @(#)Mixer.h 3.00 31 March 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_MIXER_H
#define TSE3_MIXER_H
#include "tse3/listen/Mixer.h"
#include "tse3/Notifier.h"
#include "tse3/Midi.h"
#include "tse3/listen/Transport.h"
#include <cstddef>
namespace TSE3
{
/**
* The MixerChannel holds all @ref Mixer values for a particular MIDI
* channel. It holds information on the current state of the following
* MIDI parameters:
* @li channel volume
* @li pan
* @li chorus
* @li reverb
* @li program
* @li bank select MSB
* @li bank select LSB
*
* @short TSE3 MIDI port Mixing desk
* @author Pete Goodliffe
* @version 3.00
* @see Mixer
* @see MixerChannel
*/
class MixerChannel : public Notifier<MixerChannelListener>
{
public:
/**
* Returns this channel's volume value.
*
* @return Channel's volume value
* @see setVolume
*/
unsigned int volume() const { return _volume; }
/**
* Sets the channel's volume value.
*
* @param v New volume value
* @param send Whether to send a MIDI command for this setting
* @see volume
*/
void setVolume(unsigned int v, bool send = true);
/**
* Returns this channel's pan value.
*
* @return Channel's pan value
* @see setPan
*/
unsigned int pan() const { return _volume; }
/**
* Sets the channel's pan value.
*
* @param p New pan value
* @param send Whether to send a MIDI command for this setting
* @see pan
*/
void setPan(unsigned int p, bool send = true);
/**
* Returns this channel's chorus value.
*
* @return Channel's chorus value
* @see setChorus
*/
unsigned int chorus() const { return _volume; }
/**
* Sets the channel's chorus value.
*
* @param c New chorus value
* @param send Whether to send a MIDI command for this setting
* @see chorus
*/
void setChorus(unsigned int c, bool send = true);
/**
* Returns this channel's reverb value.
*
* @return Channel's reverb value
* @see setReverb
*/
unsigned int reverb() const { return _volume; }
/**
* Sets the channel's reverb value.
*
* @param r New reverb value
* @param send Whether to send a MIDI command for this setting
* @see reverb
*/
void setReverb(unsigned int r, bool send = true);
/**
* Returns this channel's program value.
*
* @return Channel's program value
* @see setProgram
*/
unsigned int program() const { return _volume; }
/**
* Sets the channel's program value.
*
* @param p New program value
* @param send Whether to send a MIDI command for this setting
* @see program
*/
void setProgram(unsigned int p, bool send = true);
/**
* Returns this channel's bank LSB value.
*
* @return Channel's bank select LSB value
* @see setBankLSB
*/
unsigned int bankLSB() const { return _volume; }
/**
* Sets the channel's blank LSB value.
*
* @param b New bank select LSB value
* @param send Whether to send a MIDI command for this setting
* @see bankLSB
*/
void setBankLSB(unsigned int b, bool send = true);
/**
* Returns this channel's bank MSB value.
*
* @return Channel's bank select MSB value
* @see setBankMSB
*/
unsigned int bankMSB() const { return _volume; }
/**
* Sets the channel's bank MSB value.
*
* @param b New bank select MSB value
* @param send Whether to send a MIDI command for this setting
* @see bankMSB
*/
void setBankMSB(unsigned int b, bool send = true);
/**
* Process a @ref MidiCommand for this MixerChannel.
*
* This will be called by the @ref MixerPort class if the
* @ref MixerPort is given a @ref MidiCommand to process. (Indeed,
* this will indirectly be called by sending an event to the
* top-level @ref Mixer object).
*
* @param mc @ref MidiCommand to process
*/
void command(MidiCommand mc);
friend class MixerPort;
private:
/**
* Creates a MixerChannel with default mixer parameters.
*/
MixerChannel(MixerPort *mixerPort, unsigned int channel);
virtual ~MixerChannel();
MixerChannel(const MixerChannel &);
MixerChannel &operator=(const MixerChannel &);
MixerPort *mixerPort;
unsigned int channel;
unsigned char _volume;
unsigned char _pan;
unsigned char _chorus;
unsigned char _reverb;
unsigned char _program;
unsigned char _bankLSB;
unsigned char _bankMSB;
};
/**
* The MixerPort hols all @ref Mixer values for a particular MIDI port.
* It contains 16 @ref MixerChannel objects which hold the information
* for each of the port's MIDI channels.
*
* @short TSE3 MIDI port Mixing desk
* @author Pete Goodliffe
* @version 3.00
* @see Mixer
* @see MixerChannel
*/
class MixerPort : public Notifier<MixerPortListener>
{
public:
/**
* Returns this MixerPort's @ref MixerChannel object for the
* specified channel.
*
* The value returned for an index that is out of range is
* undefined. The @ref size method describes the valid
* values.
*
* @param n Index
* @return @ref MixerChannel for this MIDI channel number
*/
MixerChannel *operator[](size_t n) { return mixerChannels[n]; }
/**
* Returns this ports's master volume value.
*
* @return Port's volume value
* @see setVolume
*/
unsigned int volume() const { return _volume; }
/**
* Sets the ports's master volume value.
*
* @param v New volume value
* @param send Whether to send a MIDI command for this setting
* @see volume
*/
void setVolume(unsigned int v, bool send = true);
/**
* Process a @ref MidiCommand.
*
* This accepts the specified event (which is for this port) and
* sends it to the appropriate MixerChannel.
*
* This will be called by the @ref Mixer class if the @ref Mixer
* is given a @ref MidiCommand to process.
*
* @param mc @ref MidiCommand to process
*/
void command(MidiCommand mc);
friend class Mixer;
friend class MixerChannel;
private:
MixerPort(Mixer *mixer, unsigned int port);
virtual ~MixerPort();
MixerPort(const MixerPort &);
MixerPort &operator=(const MixerPort &);
/**
* This method sends the given @ref MidiCommand to the
* @ref Mixer object, filling in the port information.
*/
void txCommand(MidiCommand mc);
MixerChannel *mixerChannels[16];
Mixer *mixer;
unsigned int port;
unsigned char _volume;
};
/**
* The Mixer class acts in a similar way to a studio mixing desk - it
* represents the values of all the knobs and sliders you might find (in
* the MIDI realm). The values it stores include main volume, channel
* volume, channel pan, channel reverb, etc.
*
* The values can be updated in real time according to MIDI input, MIDI
* output, or both. Values can be altered and sent back out through MIDI
* out.
*
* It contains a number of @ref MixerPort objects which hold the state for
* each MIDI port in the system.
*
* @short TSE3 Mixing desk
* @author Pete Goodliffe
* @version 3.00
* @see MidiCommand
* @see MixerPort
*/
class Mixer : public Notifier<MixerListener>,
public Listener<TransportListener>,
public TransportCallback
{
public:
/**
* The Mixer object is created with all values at GM default.
*
* @param noPorts The number of MIDI ports to hold mixing
* information for - you can get the appropriate
* value from the @ref MidiScheduler object
*/
Mixer(size_t noPorts, Transport *transport);
virtual ~Mixer();
/**
* Returns this Mixer's @ref MixerPort object for the specified
* port.
*
* The value returned for an index that is out of range is
* undefined. The @ref size method describes the valid
* values.
*
* @param n Index
* @return @ref MixerPort for this MIDI port number
*/
MixerPort *operator[](size_t n) { return mixerPorts[n]; }
/**
* Process a @ref MidiCommand.
*
* This accepts the specified command, and sends it to the
* appropriate MixerPort.
*
* @param mc @ref MidiCommand to process
*/
void command(MidiCommand mc);
/**
* @reimplemented
*/
virtual void Notifier_Deleted(Transport *);
/**
* @reimplemented
*/
virtual void Transport_MidiIn(MidiCommand mc);
/**
* @reimplemented
*/
virtual void Transport_MidiOut(MidiCommand mc);
friend class MixerPort;
private:
Mixer(const Mixer &);
Mixer &operator=(const Mixer &);
/**
* This method sends the given @ref MidiCommand to the
* @ref Transport object.
*/
void txCommand(MidiCommand mc);
size_t noPorts;
MixerPort **mixerPorts;
Transport *transport;
bool _updateWithInput;
bool _updateWithOutput;
};
}
#endif
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