anonymous_namespace{VST3Wrapper.cpp} Namespace Reference

Classes
class	ComponentHandler
class	InputParameterChanges
struct	VST3EffectSettings
struct	VST3PluginCache

Functions
VST3PluginCache *	GetCache (const VST3::UID &effectUid)
VST3PluginCache &	CreateCache (const VST3::UID &effectUid)
Steinberg::Vst::SpeakerArrangement	GetBusArragementForChannels (int32_t channelsCount, Steinberg::Vst::SpeakerArrangement defaultArragment)
std::map< Steinberg::Vst::ParamID, Steinberg::Vst::ParamValue >	ParametersFromString (const wxString &str)
wxString	ParametersToString (const std::map< Steinberg::Vst::ParamID, Steinberg::Vst::ParamValue > &params)
VST3EffectSettings &	GetSettings (EffectSettings &settings)
const VST3EffectSettings &	GetSettings (const EffectSettings &settings)
bool	ActivateMainAudioBuses (Steinberg::Vst::IComponent &component)
bool	SetupProcessing (Steinberg::Vst::IComponent &component, Steinberg::Vst::ProcessSetup &setup)
	IMPLEMENT_FUNKNOWN_METHODS (InputParameterChanges, Steinberg::Vst::IParameterChanges, Steinberg::Vst::IParameterChanges::iid)

Variables
constexpr auto	processorStateKey = wxT("ProcessorState")
constexpr auto	controllerStateKey = wxT("ControllerState")
constexpr auto	parametersKey = wxT("Parameters")
std::map< std::string, VST3PluginCache >	sVST3PluginCache

Function Documentation

ActivateMainAudioBuses()

bool anonymous_namespace{VST3Wrapper.cpp}::ActivateMainAudioBuses

(

Steinberg::Vst::IComponent &

component

)

Definition at line 126 of file VST3Wrapper.cpp.

{
   using namespace Steinberg;
 
   constexpr int32 MaxChannelsPerAudioBus = 2;
 
   std::vector<Vst::SpeakerArrangement> defaultInputSpeakerArrangements;
   std::vector<Vst::SpeakerArrangement> defaultOutputSpeakerArrangements;
 
   const auto processor = FUnknownPtr<Vst::IAudioProcessor>(&component);
 
   for(int i = 0, count = component.getBusCount(Vst::kAudio, Vst::kInput); i < count; ++i)
   {
      Vst::BusInfo busInfo {};
      Vst::SpeakerArrangement arrangement {0ull};
      
      component.getBusInfo(Vst::kAudio, Vst::kInput, i, busInfo);
 
      Vst::SpeakerArrangement defaultArragement {};
      processor->getBusArrangement(Vst::kInput, i, defaultArragement);
 
      arrangement =
         busInfo.busType == Vst::kMain
            ? GetBusArragementForChannels(busInfo.channelCount, defaultArragement)
            : defaultArragement;
      
      component.activateBus(Vst::kAudio, Vst::kInput, i, busInfo.busType == Vst::kMain);
      defaultInputSpeakerArrangements.push_back(arrangement);
   }
   for(int i = 0, count = component.getBusCount(Vst::kAudio, Vst::kOutput); i < count; ++i)
   {
      Vst::BusInfo busInfo {};
      Vst::SpeakerArrangement arrangement {0ull};
      
      component.getBusInfo(Vst::kAudio, Vst::kOutput, i, busInfo);
 
      Vst::SpeakerArrangement defaultArragement {};
      processor->getBusArrangement(Vst::kOutput, i, defaultArragement);
 
      arrangement =
         busInfo.busType == Vst::kMain
            ? GetBusArragementForChannels(busInfo.channelCount, defaultArragement)
            : defaultArragement;
 
      component.activateBus(Vst::kAudio, Vst::kOutput, i, busInfo.busType == Vst::kMain);
      defaultOutputSpeakerArrangements.push_back(arrangement);
   }
   for(int i = 0, count = component.getBusCount(Vst::kEvent, Vst::kInput); i < count; ++i)
      component.activateBus(Vst::kEvent, Vst::kInput, i, 0);
   for(int i = 0, count = component.getBusCount(Vst::kEvent, Vst::kOutput); i < count; ++i)
      component.activateBus(Vst::kEvent, Vst::kOutput, i, 0);
 
   auto result = processor->setBusArrangements(
      defaultInputSpeakerArrangements.empty() ? nullptr : defaultInputSpeakerArrangements.data(), defaultInputSpeakerArrangements.size(),
      defaultOutputSpeakerArrangements.empty() ? nullptr : defaultOutputSpeakerArrangements.data(), defaultOutputSpeakerArrangements.size()
   );
 
   return result == kResultOk;
}

References GetBusArragementForChannels().

Referenced by SetupProcessing().

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CreateCache()

VST3PluginCache & anonymous_namespace{VST3Wrapper.cpp}::CreateCache

(

const VST3::UID &

effectUid

)

Definition at line 50 of file VST3Wrapper.cpp.

{
   const auto key = effectUid.toString();
   assert(sVST3PluginCache.find(key) == sVST3PluginCache.end());
   const auto result = sVST3PluginCache.insert(std::pair { key, VST3PluginCache {} });
   return result.first->second;
}

References key, and sVST3PluginCache.

Referenced by VST3Wrapper::VST3Wrapper().

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GetBusArragementForChannels()

Steinberg::Vst::SpeakerArrangement anonymous_namespace{VST3Wrapper.cpp}::GetBusArragementForChannels	(	int32_t	channelsCount,
		Steinberg::Vst::SpeakerArrangement	defaultArragment
	)

Definition at line 58 of file VST3Wrapper.cpp.

{
   if (channelsCount == 1)
      return defaultArragment;
 
   return Steinberg::Vst::SpeakerArr::kStereo;
}

Referenced by ActivateMainAudioBuses().

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GetCache()

VST3PluginCache * anonymous_namespace{VST3Wrapper.cpp}::GetCache

(

const VST3::UID &

effectUid

)

Definition at line 41 of file VST3Wrapper.cpp.

{
   const auto key = effectUid.toString();
   auto it = sVST3PluginCache.find(key);
   if(it != sVST3PluginCache.end())
      return &it->second;
   return nullptr;
}

References key, and sVST3PluginCache.

Referenced by VST3Wrapper::FetchSettings(), VST3Wrapper::FindFactoryPresets(), VST3Wrapper::InitializeComponents(), VST3Wrapper::LoadPreset(), and VST3Wrapper::VST3Wrapper().

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GetSettings() [1/2]

const VST3EffectSettings & anonymous_namespace{VST3Wrapper.cpp}::GetSettings

(

const EffectSettings &

settings

)

Definition at line 117 of file VST3Wrapper.cpp.

{
   auto vst3settings = settings.cast<VST3EffectSettings>();
   assert(vst3settings);
   return *vst3settings;
}

References settings().

Referenced by VST3Wrapper::ConsumeChanges(), VST3Wrapper::CopySettingsContents(), VST3Wrapper::FetchSettings(), anonymous_namespace{VST3Wrapper.cpp}::ComponentHandler::FlushCache(), VST3Wrapper::FlushParameters(), VST3Wrapper::LoadSettings(), VST3Wrapper::LoadUserPreset(), anonymous_namespace{VST3Wrapper.cpp}::ComponentHandler::performEdit(), VST3Wrapper::SaveSettings(), VST3Wrapper::SaveUserPreset(), and VST3Wrapper::StoreSettings().

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GetSettings() [2/2]

VST3EffectSettings & anonymous_namespace{VST3Wrapper.cpp}::GetSettings

(

EffectSettings &

settings

)

Definition at line 110 of file VST3Wrapper.cpp.

{
   auto vst3settings = settings.cast<VST3EffectSettings>();
   assert(vst3settings);
   return *vst3settings;
}

References settings().

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IMPLEMENT_FUNKNOWN_METHODS()

anonymous_namespace{VST3Wrapper.cpp}::IMPLEMENT_FUNKNOWN_METHODS	(	InputParameterChanges	,
		Steinberg::Vst::IParameterChanges	,
		Steinberg::Vst::IParameterChanges::iid
	)

ParametersFromString()

std::map< Steinberg::Vst::ParamID, Steinberg::Vst::ParamValue > anonymous_namespace{VST3Wrapper.cpp}::ParametersFromString

(

const wxString &

str

)

Definition at line 78 of file VST3Wrapper.cpp.

{
   std::map<Steinberg::Vst::ParamID, Steinberg::Vst::ParamValue> result;
   wxStringTokenizer tokenizer(str, ";");
   while(tokenizer.HasMoreTokens())
   {
      auto token = tokenizer.GetNextToken();
 
      const auto split = token.Find('=');
      if(split == wxNOT_FOUND)
         continue;
 
      unsigned long id;
      double value;
      if(!token.Left(split).ToULong(&id) ||
         !token.Right(token.Length() - split - 1).ToDouble(&value))
         continue;
 
      result[id] = value;
   }
   return result;
}

References id, and str.

Referenced by VST3Wrapper::LoadSettings(), and VST3Wrapper::LoadUserPreset().

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ParametersToString()

wxString anonymous_namespace{VST3Wrapper.cpp}::ParametersToString

(

const std::map< Steinberg::Vst::ParamID, Steinberg::Vst::ParamValue > &

params

)

Definition at line 101 of file VST3Wrapper.cpp.

{
   wxString result;
   for(auto& p : params)
      result.Append(wxString::Format(
         "%lu=%f;", static_cast<unsigned long>(p.first), p.second));
   return result;
}

References params.

Referenced by VST3Wrapper::SaveSettings(), and VST3Wrapper::SaveUserPreset().

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SetupProcessing()

bool anonymous_namespace{VST3Wrapper.cpp}::SetupProcessing	(	Steinberg::Vst::IComponent &	component,
		Steinberg::Vst::ProcessSetup &	setup
	)

Definition at line 187 of file VST3Wrapper.cpp.

{
   using namespace Steinberg;
   auto processor = FUnknownPtr<Vst::IAudioProcessor>(&component);
 
   if(processor->setupProcessing(setup) == kResultOk)
   {
      //We don't (yet) support custom input/output channel configuration
      //on the host side. No support for event bus. Use default bus and
      //channel configuration
      return ActivateMainAudioBuses(component);
   }
   return false;
}

References ActivateMainAudioBuses().

Referenced by VST3Wrapper::FlushParameters(), VST3Wrapper::Initialize(), and VST3Wrapper::InitializeComponents().

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Variable Documentation

controllerStateKey

constexpr auto anonymous_namespace{VST3Wrapper.cpp}::controllerStateKey = wxT("ControllerState")

constexpr

Definition at line 28 of file VST3Wrapper.cpp.

Referenced by VST3Wrapper::LoadSettings(), VST3Wrapper::LoadUserPreset(), VST3Wrapper::SaveSettings(), and VST3Wrapper::SaveUserPreset().

parametersKey

constexpr auto anonymous_namespace{VST3Wrapper.cpp}::parametersKey = wxT("Parameters")

constexpr

Definition at line 29 of file VST3Wrapper.cpp.

Referenced by VST3Wrapper::LoadSettings(), VST3Wrapper::LoadUserPreset(), VST3Wrapper::SaveSettings(), and VST3Wrapper::SaveUserPreset().

processorStateKey

constexpr auto anonymous_namespace{VST3Wrapper.cpp}::processorStateKey = wxT("ProcessorState")

constexpr

Definition at line 27 of file VST3Wrapper.cpp.

Referenced by VST3Wrapper::LoadSettings(), VST3Wrapper::LoadUserPreset(), VST3Wrapper::SaveSettings(), and VST3Wrapper::SaveUserPreset().

sVST3PluginCache

std::map<std::string, VST3PluginCache> anonymous_namespace{VST3Wrapper.cpp}::sVST3PluginCache

Definition at line 39 of file VST3Wrapper.cpp.

Referenced by CreateCache(), and GetCache().