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/* gusout.h - class gusOut which implements support for Gravis
Ultrasound cards through a /dev/sequencer device
This file is part of LibKMid 0.9.5
Copyright (C) 1998,99,2000 Antonio Larrosa Jimenez
LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libkmid.html
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
Send comments and bug fixes to Antonio Larrosa <[email protected]>
***************************************************************************/
#ifndef _GUSOUT_H
#define _GUSOUT_H
#include <libkmid/midiout.h>
#include <libkmid/voiceman.h>
/**
* Gravis Ultrasound synthesizer output class . This class is used to send midi
* events to synthesizers on GUS cards.
*
* GUSOut inherits MidiOut and supports the same simple API.
*
* The recommended way to use this class is by using a DeviceManager
* object, and use the DeviceManager::setPatchesToUse() member which will
* call the setPatchesToUse() member in this class.
*
* @short Sends MIDI events to GUS synths
* @version 0.9.5 17/01/2000
* @author Antonio Larrosa Jimenez <[email protected]>
*/
class GUSOut : public MidiOut
{
private:
class GUSOutPrivate;
GUSOutPrivate *di;
int patchloaded[256];
int nvoices;
int use8bit; // Use 8 bit patches, instead of 16 bits to use less memory
VoiceManager *vm;
int totalmemory; // Total memory in soundcard
int freememory; // Free memory
void patchesLoadingOrder(int *patchesused,int *patchesordered);
const char *patchName(int pgm);
public:
/**
* Constructor. See MidiOut::MidiOut() for more information.
*/
GUSOut(int d=0,int total =12);
/**
* Destructor.
*/
~GUSOut();
/**
* See MidiOut::openDev()
*/
virtual void openDev (int sqfd);
/**
* See MidiOut::closeDev()
*/
virtual void closeDev (void);
/**
* See MidiOut::initDev()
*/
virtual void initDev (void);
/**
* See MidiOut::noteOn()
*/
virtual void noteOn ( uchar chn, uchar note, uchar vel );
/**
* See MidiOut::noteOff()
*/
virtual void noteOff ( uchar chn, uchar note, uchar vel );
/**
* See MidiOut::keyPressure()
*/
virtual void keyPressure ( uchar chn, uchar note, uchar vel );
/**
* See MidiOut::chnPatchChange()
*/
virtual void chnPatchChange ( uchar chn, uchar patch );
/**
* See MidiOut::chnPressure()
*/
virtual void chnPressure ( uchar chn, uchar vel );
/**
* See MidiOut::chnPitchBender()
*/
virtual void chnPitchBender ( uchar chn, uchar lsb, uchar msb );
/**
* See MidiOut::chnController()
*/
virtual void chnController ( uchar chn, uchar ctl , uchar v );
/**
* It's an empty function, as GUS synths don't support System Exclusive
* messages
*/
virtual void sysex ( uchar *data,ulong size);
/**
* See DeviceManager::setPatchesToUse() . All the information about this
* member is explained there because it's (for now) just a simple call to this
* function when the device used is a GUS device, and you're supposed to use
* a DeviceManager object instead of a GUSOut object except in rare ocassions.
*
* @see patch()
* @see loadPatch()
*/
void setPatchesToUse(int *patchesused);
/**
* Loads a single patch on the synthesizer memory.
* @param pgm is the number of the GM patch when pgm is between 0 and 127.
* Values from 128 to 255 are used to represent the percussion instruments.
* @return 0 if OK and -1 if there was an error (patch not found, not enough
* memory, etc.)
*
* @see patch()
* @see setPatchesToUse()
*/
int loadPatch (int pgm);
/**
* Returns p if the patch with number p has been correctly loaded.
* In the case it hasn't been loaded, it returns the number of another patch
* that is loaded and that should be used instead.
*
* @see loadPatch()
* @see setPatchesToUse()
*/
int patch(int p);
private:
static const char *GUS_patches_directory;
static int delete_GUS_patches_directory;
public:
/**
* Sets the directory where the GUS patches are stored, that is, where the
* acpiano.pat, ... files can be found.
*
* It will store a copy of the parameter, so you should delete the memory
* used by the parameter you passed.
*/
static void setGUSPatchesDirectory(const char *dir);
};
#endif
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