#include <PluginProvider.h>

Inheritance diagram for PluginProvider:

Collaboration diagram for PluginProvider:

Classes
class	Validator

Public Types
using	RegistrationCallback = std::function< const PluginID &(PluginProvider , ComponentInterface ) >
	Further expand a path reported by FindModulePaths. More...

Public Member Functions
virtual	~PluginProvider ()

virtual bool	Initialize ()=0
	Called immediately after creation. Let provider initialize. More...

virtual void	Terminate ()=0
	Called just prior to deletion to allow releasing any resources. More...

virtual EffectFamilySymbol	GetOptionalFamilySymbol ()=0
	A symbol identifying the family of plug-ins provided by this. More...

virtual const FileExtensions &	GetFileExtensions ()=0
	File types associated with this protocol. More...

virtual FilePath	InstallPath ()=0
	Where plug-in files should be copied to install them. More...

virtual void	AutoRegisterPlugins (PluginManagerInterface &pluginManager)=0
	Called so that a provider of a static set of plug-ins can register them. More...

virtual PluginPaths	FindModulePaths (PluginManagerInterface &pluginManager)=0

virtual unsigned	DiscoverPluginsAtPath (const PluginPath &path, TranslatableString &errMsg, const RegistrationCallback &callback)=0

virtual bool	CheckPluginExist (const PluginPath &path) const =0
	Performs plugin/module existence check, still plugin may fail to load. Implementation should avoid loading plugins during this check. More...

virtual std::unique_ptr< Validator >	MakeValidator () const

virtual std::unique_ptr< ComponentInterface >	LoadPlugin (const PluginPath &path)=0
	Load the plug-in at a path reported by DiscoverPluginsAtPath. More...

Public Member Functions inherited from ComponentInterface
virtual	~ComponentInterface ()

virtual PluginPath	GetPath () const =0

virtual ComponentInterfaceSymbol	GetSymbol () const =0

virtual VendorSymbol	GetVendor () const =0

virtual wxString	GetVersion () const =0

virtual TranslatableString	GetDescription () const =0

TranslatableString	GetName () const

Detailed Description

PluginProvider is an interface for discovering dynamically loaded libraries according to some third party protocol, but also used in registering the built-in effects and commands. Classes derived from it can handle more specific plug-in protocols. Interface for host side of one plug-in ("component") protocol that may locate shared libraries with client-side code. A factory of plug-in objects that represent those clients. One library may contain multiple plug-ins.

Definition at line 78 of file PluginProvider.h.

Member Typedef Documentation

◆ RegistrationCallback

using PluginProvider::RegistrationCallback = std::function< const PluginID &(PluginProvider *, ComponentInterface *) >

Further expand a path reported by FindModulePaths.

Once the user selects desired paths from FindModulePaths(), a call to DiscoverPluginsAtPath() will be made to request registration of one or more plug-ins.

If the provider must create an instance of the plug-in to register it, the instance should be deleted after registration.

May discover more than one plug-in at the path, and may call-back with a ComponentInterface that reports a path not equal to the given path (perhaps appending other information to it).

Parameters

errMsg message does not need to mention the path and may be nonempty even if some plug-ins are also discovered successfully.

Returns: the number of plug-ins found

Definition at line 167 of file PluginProvider.h.

Constructor & Destructor Documentation

◆ ~PluginProvider()

PluginProvider::~PluginProvider ( )

virtualdefault

Member Function Documentation

◆ AutoRegisterPlugins()

virtual void PluginProvider::AutoRegisterPlugins ( PluginManagerInterface & pluginManager )

pure virtual

Called so that a provider of a static set of plug-ins can register them.

Implemented in VST3EffectsModule, AudioUnitEffectsModule, BuiltinEffectsModule, LadspaEffectsModule, LV2EffectsModule, VSTEffectsModule, BuiltinCommandsModule, NyquistEffectsModule, and VampEffectsModule.

◆ CheckPluginExist()

virtual bool PluginProvider::CheckPluginExist ( const PluginPath & path ) const

pure virtual

Performs plugin/module existence check, still plugin may fail to load. Implementation should avoid loading plugins during this check.

Parameters

path	Internal plugin path/ID discovered via DiscoverPluginsAtPath or module path returned by FindModulePaths

Implemented in AudioUnitEffectsModule, BuiltinEffectsModule, LadspaEffectsModule, LV2EffectsModule, VSTEffectsModule, VST3EffectsModule, BuiltinCommandsModule, NyquistEffectsModule, and VampEffectsModule.

◆ DiscoverPluginsAtPath()

virtual unsigned PluginProvider::DiscoverPluginsAtPath	(	const PluginPath &	path,
		TranslatableString &	errMsg,
		const RegistrationCallback &	callback
	)

pure virtual

Implemented in AudioUnitEffectsModule, BuiltinEffectsModule, LadspaEffectsModule, LV2EffectsModule, VSTEffectsModule, VST3EffectsModule, BuiltinCommandsModule, NyquistEffectsModule, and VampEffectsModule.

◆ FindModulePaths()

virtual PluginPaths PluginProvider::FindModulePaths ( PluginManagerInterface & pluginManager )

pure virtual

Find available "paths", which may each be presented to the user, and then reexamined (possibly loading libraries) to find one or more plug-ins

Paths are not necessarily file system paths. Only the provider reinterprets the paths.

Modules may be associated with plug-ins, one-to-many.

See also: GetFileExtensions DiscoverPluginsAtPath

Implemented in VST3EffectsModule, AudioUnitEffectsModule, BuiltinEffectsModule, LadspaEffectsModule, LV2EffectsModule, VSTEffectsModule, BuiltinCommandsModule, NyquistEffectsModule, and VampEffectsModule.

◆ GetFileExtensions()

virtual const FileExtensions & PluginProvider::GetFileExtensions ( )

pure virtual

File types associated with this protocol.

"Paths" returned by FindModulePaths() and passed back to DiscoverPluginsAtPath() have provider-specific meaning. They are not necessarily file system paths to existent files that could be placed in any folder and queried for plug-in information.

This function returns nonempty only when that is the case, and lists the possible extensions of such files (an empty string in a nonempty array means any file is a candidate).

Implemented in AudioUnitEffectsModule, BuiltinEffectsModule, LadspaEffectsModule, LV2EffectsModule, VSTEffectsModule, VST3EffectsModule, BuiltinCommandsModule, NyquistEffectsModule, and VampEffectsModule.