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/*
vst~ - VST plugin object for PD
based on the work of Jarno Seppänen and Mark Williamson
Copyright (c)2003-2005 Thomas Grill (gr@grrrr.org)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
#include "vsthost.h"
#include <ctype.h>
static void striptrail(char *txt)
{
// strip trailing whitespace
for(int i = strlen(txt)-1; i >= 0; --i)
// cast to unsigned char since isspace functions don't want characters like 0x80 = -128
if(isspace(((unsigned char *)txt)[i])) txt[i] = 0;
else break;
}
void VSTPlugin::GetParamName(int numparam,char *name) const
{
if(numparam < GetNumParams()) {
name[0] = 0;
Dispatch(effGetParamName,numparam,0,name);
striptrail(name);
}
else
name[0] = 0;
}
bool VSTPlugin::SetParamFloat(int parameter,float value)
{
if(Is() && parameter >= 0 && parameter < GetNumParams()) {
effect->setParameter(effect,parameter,value);
return true;
}
else
return false;
}
void VSTPlugin::GetParamValue(int numparam,char *parval) const
{
if(Is()) {
if(numparam < GetNumParams()) {
// how many chars needed?
char par_display[64]; par_display[0] = 0;
Dispatch(effGetParamDisplay,numparam,0,par_display);
// if(par_display[7]) par_display[8] = 0; // set trailing zero
// how many chars needed?
char par_label[64]; par_label[0] = 0;
Dispatch(effGetParamLabel,numparam,0,par_label);
striptrail(par_label);
// if(par_label[7]) par_label[8] = 0; // set trailing zero
sprintf(parval,"%s%s",par_display,par_label);
}
else
strcpy(parval,"Index out of range");
}
else
strcpy(parval,"Plugin not loaded");
}
float VSTPlugin::GetParamValue(int numparam) const
{
if(Is() && numparam < GetNumParams())
return effect->getParameter(effect,numparam);
else
return -1.0;
}
void VSTPlugin::ScanParams(int cnt)
{
if(cnt < 0) cnt = GetNumParams();
if(paramnamecnt >= cnt) return;
if(cnt >= GetNumParams()) cnt = GetNumParams();
char name[64];
for(int i = paramnamecnt; i < cnt; ++i) {
GetParamName(i,name);
if(*name) paramnames[std::string(name)] = i;
}
paramnamecnt = cnt;
}
int VSTPlugin::GetParamIx(const char *p) const
{
NameMap::const_iterator it = paramnames.find(std::string(p));
return it == paramnames.end()?-1:it->second;
}
bool VSTPlugin::GetProgramName(int cat,int p,char *buf) const
{
buf[0] = 0;
int parameter = p;
if(parameter < GetNumPrograms() && cat < GetNumCategories()) {
Dispatch(effGetProgramNameIndexed,parameter,cat,buf);
striptrail(buf);
return true;
}
else
return false;
}
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