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//=========================================================
// MusE
// Linux Music Editor
// $Id: mess.h,v 1.6 2005/05/11 14:18:48 wschweer Exp $
// (C) Copyright 2001-2004 Werner Schweer (ws@seh.de)
//=========================================================
#ifndef __MESS_H__
#define __MESS_H__
#define MESS_MAJOR_VERSION 3
#define MESS_MINOR_VERSION 1
#include "midievent.h"
class QWidget;
class MessP;
//---------------------------------------------------------
// MidiPatch
//---------------------------------------------------------
#define MP_TYPE_GM 1
#define MP_TYPE_GS 2
#define MP_TYPE_XG 4
#define MP_TYPE_LBANK 8
#define MP_TYPE_HBANK 16
struct MidiPatch {
signed char typ; // 1 - GM 2 - GS 4 - XG 8 - LBANK 16 - HBANK
signed char hbank, lbank, prog;
const char* name;
};
//---------------------------------------------------------
// Mess
// MusE experimental software synth
// Instance virtual interface class
//---------------------------------------------------------
class Mess {
MessP* d;
int _sampleRate;
int _channels; // 1 - mono, 2 - stereo
public:
Mess(int channels);
virtual ~Mess();
int channels() const { return _channels; }
int sampleRate() const { return _sampleRate; }
void setSampleRate(int r) { _sampleRate = r; }
virtual void process(float** data, int offset, int len) = 0;
// The synti has to (re-)implement processEvent() or provide
// the playNote()/setControll()/sysex() functions.
// The even routines return true if synti is busy and the
// event must be send again.
virtual bool processEvent(const MidiEvent&);
virtual bool setController(int, int, int) { return false; }
virtual bool playNote(int, int, int) { return false; }
virtual bool sysex(int, const unsigned char*) { return false; }
virtual void getInitData(int*, const unsigned char**) {}
virtual int getControllerInfo(int, const char**, int*, int*, int*) {return 0;}
virtual const char* getPatchName(int, int, int) const { return "?"; }
virtual const MidiPatch* getPatchInfo(int, const MidiPatch*) const { return 0; }
// synthesizer -> host communication
void sendEvent(MidiEvent); // called from synti
MidiEvent receiveEvent(); // called from host
int eventsPending() const;
// GUI interface routines
virtual bool hasGui() const { return false; }
virtual bool guiVisible() const { return false; }
virtual void showGui(bool) {}
virtual void getGeometry(int* x, int* y, int* w, int* h) const;
virtual void setGeometry(int, int, int, int) {}
};
//---------------------------------------------------------
// MESS
// Class descriptor
//---------------------------------------------------------
struct MESS {
const char* name;
const char* description;
const char* version;
int majorMessVersion, minorMessVersion;
// QWidget* parent allows for a threaded GUI using the Qt Library
// can be ignored by synti
Mess* (*instantiate)(int sr, const char* name);
};
extern "C" {
const MESS* mess_descriptor();
}
#endif
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