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/*
* Flanger.cpp
* -----------
* Purpose: Implementation of the DMO Flanger DSP (for non-Windows platforms)
* Notes : (currently none)
* Authors: OpenMPT Devs
* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
*/
#include "stdafx.h"
#ifndef NO_PLUGINS
#include "Flanger.h"
#include "../../Sndfile.h"
#endif // !NO_PLUGINS
OPENMPT_NAMESPACE_BEGIN
#ifndef NO_PLUGINS
namespace DMO
{
// cppcheck-suppress duplInheritedMember
IMixPlugin* Flanger::Create(VSTPluginLib &factory, CSoundFile &sndFile, SNDMIXPLUGIN &mixStruct)
{
return new (std::nothrow) Flanger(factory, sndFile, mixStruct, false);
}
IMixPlugin* Flanger::CreateLegacy(VSTPluginLib &factory, CSoundFile &sndFile, SNDMIXPLUGIN &mixStruct)
{
return new(std::nothrow) Flanger(factory, sndFile, mixStruct, true);
}
Flanger::Flanger(VSTPluginLib &factory, CSoundFile &sndFile, SNDMIXPLUGIN &mixStruct, const bool legacy)
: Chorus(factory, sndFile, mixStruct, !legacy)
{
m_param[kFlangerWetDryMix] = 0.5f;
m_param[kFlangerWaveShape] = 1.0f;
m_param[kFlangerFrequency] = 0.025f;
m_param[kFlangerDepth] = 1.0f;
m_param[kFlangerPhase] = 0.5f;
m_param[kFlangerFeedback] = (-50.0f + 99.0f) / 198.0f;
m_param[kFlangerDelay] = 0.5f;
// Already done in Chorus constructor
//m_mixBuffer.Initialize(2, 2);
}
void Flanger::SetParameter(PlugParamIndex index, PlugParamValue value, PlayState *, CHANNELINDEX)
{
if(index < kFlangerNumParameters)
{
value = mpt::safe_clamp(value, 0.0f, 1.0f);
if(index == kFlangerWaveShape)
{
value = mpt::round(value);
if(m_param[index] != value)
{
m_waveShapeMin = 0.0f;
m_waveShapeMax = 0.5f + value * 0.5f;
}
} else if(index == kFlangerPhase)
{
value = mpt::round(value * 4.0f) / 4.0f;
}
m_param[index] = value;
RecalculateChorusParams();
}
}
#ifdef MODPLUG_TRACKER
CString Flanger::GetParamName(PlugParamIndex param)
{
switch(param)
{
case kFlangerWetDryMix: return _T("WetDryMix");
case kFlangerWaveShape: return _T("WaveShape");
case kFlangerFrequency: return _T("Frequency");
case kFlangerDepth: return _T("Depth");
case kFlangerPhase: return _T("Phase");
case kFlangerFeedback: return _T("Feedback");
case kFlangerDelay: return _T("Delay");
}
return CString();
}
CString Flanger::GetParamLabel(PlugParamIndex param)
{
switch(param)
{
case kFlangerWetDryMix:
case kFlangerDepth:
case kFlangerFeedback:
return _T("%");
case kFlangerFrequency:
return _T("Hz");
case kFlangerPhase:
return mpt::ToCString(MPT_UTF8("\xC2\xB0")); // U+00B0 DEGREE SIGN
case kFlangerDelay:
return _T("ms");
}
return CString();
}
CString Flanger::GetParamDisplay(PlugParamIndex param)
{
CString s;
float value = m_param[param];
switch(param)
{
case kFlangerWetDryMix:
case kFlangerDepth:
value *= 100.0f;
break;
case kFlangerFrequency:
value = FrequencyInHertz();
break;
case kFlangerWaveShape:
return (value < 1) ? _T("Square") : _T("Sine");
break;
case kFlangerPhase:
switch(Phase())
{
case 0: return _T("-180");
case 1: return _T("-90");
case 2: return _T("0");
case 3: return _T("90");
case 4: return _T("180");
}
break;
case kFlangerFeedback:
value = Feedback();
break;
case kFlangerDelay:
value = Delay();
}
s.Format(_T("%.2f"), value);
return s;
}
#endif // MODPLUG_TRACKER
} // namespace DMO
#else
MPT_MSVC_WORKAROUND_LNK4221(Flanger)
#endif // !NO_PLUGINS
OPENMPT_NAMESPACE_END
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