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//=============================================================================
// MuseSynth
// Music Software Synthesizer
//
// Copyright (C) 2013 Werner Schweer
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2
// as published by the Free Software Foundation and appearing in
// the file LICENCE.GPL
//=============================================================================
#include "effect.h"
namespace Ms {
//---------------------------------------------------------
// parameter
//---------------------------------------------------------
const ParDescr* Effect::parameter(int idx) const
{
return &parDescr()[idx];
}
const ParDescr* Effect::parameter(const QString& name) const
{
for (const ParDescr& pd : parDescr()) {
if (name == pd.name)
return &pd;
}
return 0;
}
void Effect::setValue(const QString& name, double value)
{
const ParDescr* p = parameter(name);
if (p == 0)
return;
setValue(p->id, value);
}
void Effect::setValue(int id, double value)
{
const ParDescr* p = parameter(id);
if (p == 0)
return;
double v;
if (p->log)
v = exp(p->min + value * (p->max - p->min));
else
v = p->min + value * (p->max - p->min);
setNValue(p->id, v);
}
//---------------------------------------------------------
// value
// return normalized value 0-1.0
//---------------------------------------------------------
double Effect::value(const QString& name) const
{
const ParDescr* p = parameter(name);
if (p == 0)
return 0.0;
return value(p->id);
}
double Effect::value(int idx) const
{
double v = nvalue(idx);
const ParDescr* p = parameter(idx);
if (p->log)
v = (log(v) - p->min)/(p->max - p->min);
else
v = (v - p->min)/(p->max - p->min);
return v;
}
}
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