Initial release

engine/vendor/vst3sdk/public.sdk/source/vst/vstcomponent.cpp

@@ -0,0 +1,198 @@
+//-----------------------------------------------------------------------------
+// Project     : VST SDK
+//
+// Category    : Helpers
+// Filename    : public.sdk/source/vst/vstcomponent.cpp
+// Created by  : Steinberg, 04/2005
+// Description : Basic VST Plug-in Implementation
+//
+//-----------------------------------------------------------------------------
+// This file is part of a Steinberg SDK. It is subject to the license terms
+// in the LICENSE file found in the top-level directory of this distribution
+// and at www.steinberg.net/sdklicenses.
+// No part of the SDK, including this file, may be copied, modified, propagated,
+// or distributed except according to the terms contained in the LICENSE file.
+//-----------------------------------------------------------------------------
+
+#include "vstcomponent.h"
+
+namespace Steinberg {
+namespace Vst {
+
+//------------------------------------------------------------------------
+// Component Implementation
+//------------------------------------------------------------------------
+Component::Component ()
+: audioInputs (kAudio, kInput)
+, audioOutputs (kAudio, kOutput)
+, eventInputs (kEvent, kInput)
+, eventOutputs (kEvent, kOutput)
+{
+}
+
+//------------------------------------------------------------------------
+tresult PLUGIN_API Component::initialize (FUnknown* context)
+{
+	return ComponentBase::initialize (context);
+}
+
+//------------------------------------------------------------------------
+tresult PLUGIN_API Component::terminate ()
+{
+	// remove all busses
+	removeAllBusses ();
+
+	return ComponentBase::terminate ();
+}
+
+//------------------------------------------------------------------------
+BusList* Component::getBusList (MediaType type, BusDirection dir)
+{
+	if (type == kAudio)
+		return dir == kInput ? &audioInputs : &audioOutputs;
+	if (type == kEvent)
+		return dir == kInput ? &eventInputs : &eventOutputs;
+	return nullptr;
+}
+
+//------------------------------------------------------------------------
+tresult Component::removeAudioBusses ()
+{
+	audioInputs.clear ();
+	audioOutputs.clear ();
+
+	return kResultOk;
+}
+
+//------------------------------------------------------------------------
+tresult Component::removeEventBusses ()
+{
+	eventInputs.clear ();
+	eventOutputs.clear ();
+
+	return kResultOk;
+}
+
+//------------------------------------------------------------------------
+tresult Component::removeAllBusses ()
+{
+	removeAudioBusses ();
+	removeEventBusses ();
+
+	return kResultOk;
+}
+
+//------------------------------------------------------------------------
+tresult PLUGIN_API Component::getControllerClassId (TUID classID)
+{
+	if (controllerClass.isValid ())
+	{
+		controllerClass.toTUID (classID);
+		return kResultTrue;
+	}
+	return kResultFalse;
+}
+
+//------------------------------------------------------------------------
+tresult PLUGIN_API Component::setIoMode (IoMode /*mode*/)
+{
+	return kNotImplemented;
+}
+
+//------------------------------------------------------------------------
+int32 PLUGIN_API Component::getBusCount (MediaType type, BusDirection dir)
+{
+	BusList* busList = getBusList (type, dir);
+	return busList ? static_cast<int32> (busList->size ()) : 0;
+}
+
+//------------------------------------------------------------------------
+tresult PLUGIN_API Component::getBusInfo (MediaType type, BusDirection dir, int32 index,
+                                          BusInfo& info)
+{
+	if (index < 0)
+		return kInvalidArgument;
+	BusList* busList = getBusList (type, dir);
+	if (busList == nullptr)
+		return kInvalidArgument;
+	if (index >= static_cast<int32> (busList->size ()))
+		return kInvalidArgument;
+
+	Bus* bus = busList->at (index);
+	info.mediaType = type;
+	info.direction = dir;
+	if (bus->getInfo (info))
+		return kResultTrue;
+	return kResultFalse;
+}
+
+//------------------------------------------------------------------------
+tresult PLUGIN_API Component::getRoutingInfo (RoutingInfo& /*inInfo*/, RoutingInfo& /*outInfo*/)
+{
+	return kNotImplemented;
+}
+
+//------------------------------------------------------------------------
+tresult PLUGIN_API Component::activateBus (MediaType type, BusDirection dir, int32 index,
+                                           TBool state)
+{
+	if (index < 0)
+		return kInvalidArgument;
+	BusList* busList = getBusList (type, dir);
+	if (busList == nullptr)
+		return kInvalidArgument;
+	if (index >= static_cast<int32> (busList->size ()))
+		return kInvalidArgument;
+
+	Bus* bus = busList->at (index);
+	bus->setActive (state);
+	return kResultTrue;
+}
+
+//------------------------------------------------------------------------
+tresult PLUGIN_API Component::setActive (TBool /*state*/)
+{
+	return kResultOk;
+}
+
+//------------------------------------------------------------------------
+tresult PLUGIN_API Component::setState (IBStream* /*state*/)
+{
+	return kNotImplemented;
+}
+
+//------------------------------------------------------------------------
+tresult PLUGIN_API Component::getState (IBStream* /*state*/)
+{
+	return kNotImplemented;
+}
+
+//------------------------------------------------------------------------
+tresult Component::renameBus (MediaType type, BusDirection dir, int32 index,
+                              const String128 newName)
+{
+	if (index < 0)
+		return kInvalidArgument;
+	BusList* busList = getBusList (type, dir);
+	if (busList == nullptr)
+		return kInvalidArgument;
+	if (index >= static_cast<int32> (busList->size ()))
+		return kInvalidArgument;
+
+	Bus* bus = busList->at (index);
+	bus->setName (newName);
+	return kResultTrue;
+}
+
+//------------------------------------------------------------------------
+// Helpers Implementation
+//------------------------------------------------------------------------
+tresult getSpeakerChannelIndex (SpeakerArrangement arrangement, uint64 speaker, int32& channel)
+{
+	channel = SpeakerArr::getSpeakerIndex (speaker, arrangement);
+	return (channel < 0) == true ? kResultFalse : kResultTrue;
+}
+
+//------------------------------------------------------------------------
+} // namespace Vst
+} // namespace Steinberg