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