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//=========================================================
// MusE
// Linux Music Editor
// $Id: mempi.h,v 1.10 2005/07/16 09:31:50 wschweer Exp $
// (C) Copyright 2005 Werner Schweer (ws@seh.de)
//=========================================================
//
// MusE experimental midi plugin interface
//
#ifndef __MEMPI_H__
#define __MEMPI_H__
#define MEMPI_MAJOR_VERSION 1
#define MEMPI_MINOR_VERSION 1
#include <set>
#include "evdata.h"
#include "memory.h"
#include "midievent.h"
class MempiP;
//---------------------------------------------------------
// MempiHost
// Host Infos
//---------------------------------------------------------
struct MempiHost {
virtual int division() const; // midi division
virtual int tempo(unsigned tick) const;
virtual unsigned tick2frame(unsigned tick) const;
virtual unsigned frame2tick(unsigned frame) const;
virtual void bar(int tick, int* bar, int* beat, unsigned* rest) const;
virtual unsigned bar2tick(int bar, int beat, int tick) const;
virtual ~MempiHost() {}
};
//---------------------------------------------------------
// Mempi
// Instance class
// MusE experimental midi plugin interface
// Instance virtual interface class
//---------------------------------------------------------
class Mempi {
MempiP* d;
const char* _name; // mempi instance name
protected:
const MempiHost* host;
public:
// modul interface
Mempi(const char* name, const MempiHost*);
virtual ~Mempi();
virtual bool init() { return false; }
const char* name() const { return _name; }
// process interface
virtual void process(unsigned, unsigned, MidiEventList*, MidiEventList*) = 0;
// session interface
virtual void getInitData(int*, const unsigned char**) const {}
virtual void setInitData(int, const unsigned char*) {}
// 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) {}
};
//---------------------------------------------------------
// MEMPI
// Class descriptor
//---------------------------------------------------------
enum MempiType { MEMPI_FILTER = 0, MEMPI_GENERATOR = 1 };
struct MEMPI {
const char* name;
const char* description;
const char* version;
MempiType type;
int majorMempiVersion, minorMempiVersion;
Mempi* (*instantiate)(const char* name, const MempiHost*);
};
extern "C" {
const MEMPI* mempi_descriptor();
}
#endif
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