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/* midimapper.h - The midi mapper object
This file is part of LibKMid 0.9.5
Copyright (C) 1997,98,99,2000 Antonio Larrosa Jimenez
LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libtdemid.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 _MIDIMAPPER_H
#define _MIDIMAPPER_H
#include <stdio.h>
#include <libtdemid/dattypes.h>
#include <tdelibs_export.h>
#define KM_NAME_SIZE 30
/**
* A Midi Mapper class which defines the way MIDI events are translated
* (or "mapped") to different ones. This way, when two MIDI devices "talk"
* in a somehow different way, they can still communicate.
*
* When the user has an external keyboard that is not compatible with the
* General Midi standard, he can use a MIDI mapper file to play files
* as if the synthesizer was GM compatible.
*
* Please see the KMid documentation
* ( http://www.arrakis.es/~rlarrosa/tdemid.html ) for information on the
* format of a MIDI mapper definition file, and how they work.
*
* I created this class because I had one of those non-GM keyboards,
* so it can do everything I needed it to do for my keyboard to work
* exactly as a GM synth, and a few more things. Currently, it's the most
* featured MIDI mapper available.
*
* The usage of this class is quite simple, just create an object with
* a correct filename in the constructor and then use this object as
* parameter for DeviceManager::setMidiMap().
*
* @short Midi Mapper
* @version 0.9.5 17/01/2000
* @author Antonio Larrosa Jimenez <[email protected]>
*/
class KMID_EXPORT MidiMapper
{
private:
class MidiMapperPrivate;
MidiMapperPrivate *d;
/**
* @internal
* Internal definition for Keymaps
*/
struct Keymap
{
char name[KM_NAME_SIZE];
uchar key[128];
struct Keymap *next;
};
int _ok;
uchar channelmap[16];
/**
* @internal
* It's a pointer to the Keymap to use for a channel
* This variable is used to get faster a given Keymap
* The index is the real channel (after mapping it)
*/
Keymap *channelKeymap[16];
/**
* @internal
* It's -1 if the channel doesn't have a forced patch,
* else indicates the patch to force in the channel.
*/
int channelPatchForced[16];
uchar patchmap[128];
/**
* @internal
* Same as channelKeymap
*/
Keymap *patchKeymap[128];
/**
* @internal
* Real linked list of keymaps used around the class.
*/
Keymap *keymaps;
/**
* @internal
* Stores the name of the file from which the map was loaded
*/
char *_filename;
/**
* @internal
* Simulate expression events with volume events
*/
int mapExpressionToVolumeEvents;
/**
* @internal
* Map or not the Pitch Bender using pitchBenderRatio()
*/
int mapPitchBender;
/**
* @internal
* Indicates the ratio between the standard and the synthesizer's pitch
* bender engine. The number sent to the synth is multiplied by this
* and dividied by 4096. Thus if PitchBenderRatio is 4096, the synth's
* pitch bender works as the standard one
*/
int pitchBenderRatio;
void getValue(char *s,char *v);
void removeSpaces(char *s);
int countWords(char *s);
void getWord(char *t,char *s,int w);
// get from s the word in position w and store it in t
void deallocateMaps(void);
Keymap *createKeymap(char *name,uchar use_same_note=0,uchar note=0);
void readPatchmap(FILE *fh);
void readKeymap(FILE *fh,char *first_line);
void readChannelmap(FILE *fh);
void readOptions(FILE *fh);
void addKeymap(Keymap *newkm);
Keymap *keymap(char *n);
public:
/**
* Constructor. Loads a MIDI Mapper definition from a file.
* @see filename()
*/
MidiMapper(const char *name);
/**
* Destructor.
*/
~MidiMapper();
/**
* Loads a MIDI Mapper definition file (you don't need to use this if you
* used a correct filename in constructor).
*/
void loadFile(const char *name);
/**
* Returns the status of the object.
*/
int ok(void) { return _ok; }
/**
* Returns the channel which chn should be mapped to.
*/
uchar channel(uchar chn) { return channelmap[chn];}
/**
* Returns the patch which pgm used on channel chn should be mapped to.
*/
uchar patch(uchar chn,uchar pgm);
/**
* Returns the key that key note playing a pgm patch on channel chn should
* be mapped to.
*/
uchar key(uchar chn,uchar pgm, uchar note);
/**
* Returns the value which the pitch bender on channel chn should be
* mapped to.
*/
void pitchBender(uchar chn,uchar &lsb,uchar &msb);
/**
* Returns the value which a given controller and its value should
* be mapped to when played on channel chn.
*/
void controller(uchar chn,uchar &ctl,uchar &v);
/**
* Returns the path and name of the file which the object loaded the
* mapper from.
*/
const char *filename(void);
};
#endif
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