static void readheader(void) /* read a header chunk */
{
int format, ntrks, division;
if (readmt("MThd") == EOF)
return;
Mf_toberead = read32bit();
format = read16bit();
ntrks = read16bit();
division = read16bit();
if (Mf_header)
(*Mf_header)(format,ntrks,division);
/* flush any extra stuff, in case the length of header is not 6 */
while (Mf_toberead > 0)
(void) egetc();
}
void Riff::processPHDR(int size)
{
int i, pc, bank;
char name[21];
int npresets = size / 38 - 1;
for (i = 0; i < npresets; i++) {
if (m_IOStream->atEnd()) return;
m_IOStream->readRawData(name, 20);
name[20] = 0;
pc = read16bit();
bank = read16bit();
skip(14);
if (bank < 128)
emit signalInstrument(bank, pc, QString(name));
else
emit signalPercussion(bank, pc, QString(name));
//qDebug() << "Instrument: " << bank << pc << name;
}
skip(38);
}
QString Riff::readDLSVersion()
{
quint16 v[4];
for(int i=0; i<4; ++i) v[i] = read16bit();
return QString("%1.%2.%3.%4").arg(v[0]).arg(v[1]).arg(v[2]).arg(v[3]);
}
QString Riff::readSFVersion()
{
int sfVersion = read16bit();
int sfMinor = read16bit();
return QString("%1.%2").arg(sfVersion).arg(sfMinor);
}