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//=========================================================
// MusE
// Linux Music Editor
//
// drumglue - filter
//
// (C) Copyright 2008 Robert Jonsson (rj@spamatica.se)
// (C) Copyright 2005- Werner Schweer (ws@seh.de)
// Copyright: See COPYING file that comes with this distribution
//=========================================================
#include "drumgluegui.h"
#include "drumglue.h"
#include "midi.h"
#include "midievent.h"
//---------------------------------------------------------
// DrumInstrument - get next index
// - next output instrument to use
//---------------------------------------------------------
int DrumInstrument::getNextIndex(int /*velocity*/)
{
// for now we simply do a round robin
//
// future improvements are to keep track of
// the time since the last hit and the
// weight set for each instrument.
// the incoming velocity should be checked that it's in range
if (outputInstruments.size() == 0)
return -1;
if (lastOutputIndex+1 > outputInstruments.size()-1)
return 0;
else
return lastOutputIndex+1;
}
//---------------------------------------------------------
// DrumInstrument - get velocity
// - velocity value to use
//---------------------------------------------------------
int DrumInstrument::getVelocity(int /*index*/, int velocity)
{
// for now we just return the same velocity
// future improvements are to allow for some
return velocity;
}
//---------------------------------------------------------
// DrumGlue - constructor
//---------------------------------------------------------
DrumGlue::DrumGlue(const char* name, const MempiHost* h)
: Mempi(name, h)
{
gui = 0;
saveData = NULL;
}
//---------------------------------------------------------
// DrumGlue - destructor
//---------------------------------------------------------
DrumGlue::~DrumGlue()
{
if (gui)
delete gui;
if (saveData)
delete saveData;
}
//---------------------------------------------------------
// init
//---------------------------------------------------------
bool DrumGlue::init()
{
gui = new DrumGlueGui(this, 0);
gui->setWindowTitle("MusE: "+QString(name()));
gui->show();
return false;
}
//---------------------------------------------------------
// getGeometry
//---------------------------------------------------------
void DrumGlue::getGeometry(int* x, int* y, int* w, int* h) const
{
QPoint pos(gui->pos());
QSize size(gui->size());
*x = pos.x();
*y = pos.y();
*w = size.width();
*h = size.height();
}
//---------------------------------------------------------
// setGeometry
//---------------------------------------------------------
void DrumGlue::setGeometry(int x, int y, int w, int h)
{
gui->resize(QSize(w, h));
gui->move(QPoint(x, y));
}
//---------------------------------------------------------
// process
//---------------------------------------------------------
void DrumGlue::process(unsigned , unsigned , MidiEventList* il, MidiEventList* ol)
{
for (iMidiEvent i = il->begin(); i != il->end(); ++i) {
MidiEvent temp=*i;
if (temp.isNote() && !temp.isNoteOff())
{
foreach(DrumInstrument *di, drumInstruments) {
if (temp.dataA() == di->inKey) {
int inVelocity = temp.dataB();
int instrumentIdx = di->getNextIndex(inVelocity);
if (instrumentIdx==-1) {
// no instrument defined, yet, skip it
break;
}
int outKey = di->outputInstruments[instrumentIdx]->outKey;
int outVelocity= di->getVelocity(instrumentIdx, inVelocity);
printf("inKey=%d outKey =%d outVelocity=%d instrumentIdx=%d\n", di->inKey, outKey, outVelocity, instrumentIdx);
temp.setA(outKey);
temp.setB(outVelocity);
ol->insert(temp); // note on
temp.setB(0);
ol->insert(temp); // note off
di->lastOutputIndex = instrumentIdx;
di->outputTime = temp.time();
break;
}
}
}
if (temp.isNoteOff()) ; // we just throw it away, we will insert noteoffs for each note on
}
}
//
// getInitData - return configuration to MusE
//
void DrumGlue::getInitData(int* n, const unsigned char** p) const
{
QString saveStr;
foreach (DrumInstrument *di, drumInstruments) {
QString drumline = "DRUM " +di->name + " " + QString("%1").arg(di->inKey) + "\n";
saveStr.append(drumline);
foreach (DrumOutputInstrument *doi, di->outputInstruments) {
QString outputline = "OUTPUT " +
QString("%1").arg(doi->outKey) + " " +
QString("%1").arg(doi->lowestVelocity) + " " +
QString("%1").arg(doi->highestVelocity) + " " +
QString("%1").arg(doi->prefer) + " " +
QString("%1").arg(doi->preferFast) + "\n";
saveStr.append(outputline);
}
}
*n = saveStr.length();
if (saveData)
delete saveData;
saveData = new unsigned char[saveStr.length()];
strncpy((char*)saveData, saveStr.toLatin1().data(), saveStr.length());
saveData[saveStr.length()]=0;
printf("getInitData -\n%s\n",saveData);
*p = saveData;
}
void DrumGlue::setInitData(int n, const unsigned char* p)
{
if (saveData)
delete saveData;
saveData = new unsigned char[n+1];
strncpy((char*)saveData,(char*)p,n);
saveData[n]=0;
QString loadStr = (char*)saveData;
printf("setInitData -\n%s\n",saveData);
QStringList loadList = loadStr.split("\n");
DrumInstrument *currentInstrument=NULL;
foreach (QString line, loadList) {
QStringList splitLine = line.split(" ");
if (splitLine[0] == "DRUM") {
if (currentInstrument)
drumInstruments.append(currentInstrument);
currentInstrument = new DrumInstrument();
currentInstrument->name = splitLine[1];
currentInstrument->inKey = splitLine[2].toInt();
}
if (splitLine[0] == "OUTPUT") {
DrumOutputInstrument *doi = new DrumOutputInstrument;
doi->outKey = splitLine[1].toInt();
doi->lowestVelocity = splitLine[2].toInt();
doi->highestVelocity = splitLine[3].toInt();
doi->prefer = splitLine[4].toInt();
doi->preferFast = splitLine[5].toInt();
currentInstrument->outputInstruments.append(doi);
}
}
if (currentInstrument)
drumInstruments.append(currentInstrument);
if (gui)
gui->init();
}
//---------------------------------------------------------
// inst
//---------------------------------------------------------
static Mempi* instantiate(const char* name, const MempiHost* h)
{
return new DrumGlue(name, h);
}
extern "C" {
static MEMPI descriptor = {
"DrumGlue",
"Drum instrument mux filter",
"0.1", // filter version string
MEMPI_FILTER, // plugin type
MEMPI_MAJOR_VERSION, MEMPI_MINOR_VERSION,
instantiate
};
const MEMPI* mempi_descriptor() { return &descriptor; }
}
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