QString PyQcsObject::getCsStringChannel(QString channel, int index)
{
CsoundEngine *e = m_qcs->getEngine(index);
if (e != NULL) {
CSOUND *cs = e->getCsound();
if (cs != NULL) {
#ifdef CSOUND6
int maxlen = csoundGetChannelDatasize(cs, channel.toLocal8Bit());
#else
int maxlen = csoundGetStrVarMaxLen(cs);
#endif
char *value = new char[maxlen];
if ( !( csoundGetChannelPtr(cs,(MYFLT **) &value,channel.toLocal8Bit(),
CSOUND_STRING_CHANNEL | CSOUND_OUTPUT_CHANNEL))) {
return QString(value);
}
}
}
QString message="Could not read from channel "+channel;
PythonQtObjectPtr mainContext = PythonQt::self()->getMainModule();
mainContext.evalScript("print \'"+message+"\'");
return QString();//m_qcs->getCsChannel(channel, index);
}
void PyQcsObject::setCsChannel(QString channel, double value, int index)
{
CsoundEngine *e = m_qcs->getEngine(index);
MYFLT *p;
if (e != NULL) {
CSOUND *cs = e->getCsound();
#ifndef CSOUND6
if (cs != NULL && !(csoundGetChannelPtr(cs, &p, channel.toLocal8Bit(), CSOUND_CONTROL_CHANNEL | CSOUND_INPUT_CHANNEL))) {
*p = (MYFLT) value;
return;
}
#else
if (cs) {
controlChannelHints_t hints; // this does not work with csound5
int ret = csoundGetControlChannelHints(cs, channel.toLocal8Bit(), &hints);
if (ret == 0) {
csoundSetControlChannel(cs, channel.toLocal8Bit(), (MYFLT) value);
return;
}
}
#endif
}
QString message="Channel '" + channel + "' does not exist or is not exposed with chn_k.";
PythonQtObjectPtr mainContext = PythonQt::self()->getMainModule();
mainContext.evalScript("print \'"+message+"\'");
}
void PyQcsObject::setCsChannel(QString channel, QString stringValue, int index)
{
CsoundEngine *e = m_qcs->getEngine(index);
MYFLT *p;
if (e != NULL) {
CSOUND *cs = e->getCsound();
if (cs != NULL && !(csoundGetChannelPtr(cs, &p, channel.toLocal8Bit().constData(), CSOUND_STRING_CHANNEL | CSOUND_INPUT_CHANNEL))) {
// FIXME not thread safe and not checking string bounds.
strcpy((char*) p,stringValue.toLocal8Bit().constData() );
return;
}
}
QString message="Could not set string into channel "+ channel;
PythonQtObjectPtr mainContext = PythonQt::self()->getMainModule();
mainContext.evalScript("print \'"+message+"\'");
}
/** pass a setChannel command through to csound. only works if perf. thread is running */
void setChannel(const char * name, MYFLT vol)
{
if (!csound) {
ll->printf(1, "skipping %s, csound==NULL\n", __FUNCTION__);
return;
}
if (!ThreadID)
{
if (_debug && (VERBOSE > 1)) fprintf(_debug, "skipping %s, ThreadID==NULL\n", __FUNCTION__);
return ;
}
MYFLT *p;
if (!(csoundGetChannelPtr(csound, &p, name, CSOUND_CONTROL_CHANNEL | CSOUND_INPUT_CHANNEL)))
*p = (MYFLT) vol;
else
{
if (_debug && (VERBOSE >0)) fprintf(_debug, "ERROR: failed to set channel: %s\n", name);
}
}
double PyQcsObject::getCsChannel(QString channel, int index)
{
CsoundEngine *e = m_qcs->getEngine(index);
MYFLT *value = new MYFLT;
//*value = 0;
if (e != NULL) {
CSOUND *cs = e->getCsound();
if (cs != NULL ) {
if ( !( csoundGetChannelPtr(cs,&value,channel.toLocal8Bit(),
CSOUND_CONTROL_CHANNEL | CSOUND_OUTPUT_CHANNEL)))
return (double) *value;
}
}
QString message="Could not read from channel "+channel;
PythonQtObjectPtr mainContext = PythonQt::self()->getMainModule();
mainContext.evalScript("print \'"+message+"\'");
return 0;//m_qcs->getCsChannel(channel, index);
}
