Urho3D::Shader Class Reference

Shader resource consisting of several shader variations. More...

#include <Urho3D/Graphics/Shader.h>

Inheritance diagram for Urho3D::Shader:

Collaboration diagram for Urho3D::Shader:

Public Member Functions
	Shader (Context *context)
	Construct.
	~Shader () override
	Destruct.
bool	BeginLoad (Deserializer &source) override
	Load resource from stream. May be called from a worker thread. Return true if successful.
bool	EndLoad () override
	Finish resource loading. Always called from the main thread. Return true if successful.
ShaderVariation *	GetVariation (ShaderType type, const String &defines)
	Return a variation with defines. Separate multiple defines with spaces.
ShaderVariation *	GetVariation (ShaderType type, const char *defines)
	Return a variation with defines. Separate multiple defines with spaces.
const String &	GetSourceCode (ShaderType type) const
	Return either vertex or pixel shader source code.
unsigned	GetTimeStamp () const
	Return the latest timestamp of the shader code and its includes.
Public Member Functions inherited from Urho3D::Resource
	Resource (Context *context)
	Construct.
bool	Load (Deserializer &source)
	Load resource synchronously. Call both BeginLoad() & EndLoad() and return true if both succeeded.
virtual bool	Save (Serializer &dest) const
	Save resource. Return true if successful.
bool	LoadFile (const String &fileName)
virtual bool	SaveFile (const String &fileName) const
void	SetName (const String &name)
void	SetMemoryUse (unsigned size)
	Set memory use in bytes, possibly approximate.
void	ResetUseTimer ()
	Reset last used timer.
void	SetAsyncLoadState (AsyncLoadState newState)
	Set the asynchronous loading state. Called by ResourceCache. Resources in the middle of asynchronous loading are not normally returned to user.
const String &	GetName () const
StringHash	GetNameHash () const
	Return name hash.
unsigned	GetMemoryUse () const
unsigned	GetUseTimer ()
AsyncLoadState	GetAsyncLoadState () const
	Return the asynchronous loading state.
Public Member Functions inherited from Urho3D::Object
	Object (Context *context)
	Construct.
	~Object () override
	Destruct. Clean up self from event sender & receiver structures.
virtual StringHash	GetType () const =0
virtual const String &	GetTypeName () const =0
virtual const TypeInfo *	GetTypeInfo () const =0
	Return type info.
virtual void	OnEvent (Object *sender, StringHash eventType, VariantMap &eventData)
	Handle event.
bool	IsInstanceOf (StringHash type) const
	Check current instance is type of specified type.
bool	IsInstanceOf (const TypeInfo *typeInfo) const
	Check current instance is type of specified type.
template<typename T >
bool	IsInstanceOf () const
	Check current instance is type of specified class.
template<typename T >
T *	Cast ()
	Cast the object to specified most derived class.
template<typename T >
const T *	Cast () const
	Cast the object to specified most derived class.
void	SubscribeToEvent (StringHash eventType, EventHandler *handler)
	Subscribe to an event that can be sent by any sender.
void	SubscribeToEvent (Object *sender, StringHash eventType, EventHandler *handler)
	Subscribe to a specific sender's event.
void	SubscribeToEvent (StringHash eventType, const std::function< void(StringHash, VariantMap &)> &function, void *userData=nullptr)
	Subscribe to an event that can be sent by any sender.
void	SubscribeToEvent (Object *sender, StringHash eventType, const std::function< void(StringHash, VariantMap &)> &function, void *userData=nullptr)
	Subscribe to a specific sender's event.
void	UnsubscribeFromEvent (StringHash eventType)
	Unsubscribe from an event.
void	UnsubscribeFromEvent (Object *sender, StringHash eventType)
	Unsubscribe from a specific sender's event.
void	UnsubscribeFromEvents (Object *sender)
	Unsubscribe from a specific sender's events.
void	UnsubscribeFromAllEvents ()
	Unsubscribe from all events.
void	UnsubscribeFromAllEventsExcept (const PODVector< StringHash > &exceptions, bool onlyUserData)
	Unsubscribe from all events except those listed, and optionally only those with userdata (script registered events).
void	SendEvent (StringHash eventType)
	Send event to all subscribers.
void	SendEvent (StringHash eventType, VariantMap &eventData)
	Send event with parameters to all subscribers.
VariantMap &	GetEventDataMap () const
	Return a preallocated map for event data. Used for optimization to avoid constant re-allocation of event data maps.
template<typename... Args>
void	SendEvent (StringHash eventType, Args... args)
	Send event with variadic parameter pairs to all subscribers. The parameter pairs is a list of paramID and paramValue separated by comma, one pair after another.
Context *	GetContext () const
	Return execution context.
const Variant &	GetGlobalVar (StringHash key) const
const VariantMap &	GetGlobalVars () const
void	SetGlobalVar (StringHash key, const Variant &value)
Object *	GetSubsystem (StringHash type) const
	Return subsystem by type.
Object *	GetEventSender () const
	Return active event sender. Null outside event handling.
EventHandler *	GetEventHandler () const
	Return active event handler. Null outside event handling.
bool	HasSubscribedToEvent (StringHash eventType) const
	Return whether has subscribed to an event without specific sender.
bool	HasSubscribedToEvent (Object *sender, StringHash eventType) const
	Return whether has subscribed to a specific sender's event.
bool	HasEventHandlers () const
	Return whether has subscribed to any event.
template<class T >
T *	GetSubsystem () const
	Template version of returning a subsystem.
const String &	GetCategory () const
void	SetBlockEvents (bool block)
	Block object from sending and receiving events.
bool	GetBlockEvents () const
	Return sending and receiving events blocking status.
Public Member Functions inherited from Urho3D::RefCounted
	RefCounted ()
	Construct. Allocate the reference count structure and set an initial self weak reference.
virtual	~RefCounted ()
	Destruct. Mark as expired and also delete the reference count structure if no outside weak references exist.
	RefCounted (const RefCounted &rhs)=delete
	Prevent copy construction.
RefCounted &	operator= (const RefCounted &rhs)=delete
	Prevent assignment.
void	AddRef ()
	Increment reference count. Can also be called outside of a SharedPtr for traditional reference counting.
void	ReleaseRef ()
	Decrement reference count and delete self if no more references. Can also be called outside of a SharedPtr for traditional reference counting.
int	Refs () const
int	WeakRefs () const
RefCount *	RefCountPtr ()
	Return pointer to the reference count structure.

Static Public Member Functions
static void	RegisterObject (Context *context)
	Register object factory.
Static Public Member Functions inherited from Urho3D::Object
static const TypeInfo *	GetTypeInfoStatic ()
	Return type info static.

Private Member Functions
	URHO3D_OBJECT (Shader, Resource)
bool	ProcessSource (String &code, Deserializer &source)
	Process source code and include files. Return true if successful.
String	NormalizeDefines (const String &defines)
	Sort the defines and strip extra spaces to prevent creation of unnecessary duplicate shader variations.
void	RefreshMemoryUse ()
	Recalculate the memory used by the shader.

Private Attributes
String	vsSourceCode_
	Source code adapted for vertex shader.
String	psSourceCode_
	Source code adapted for pixel shader.
HashMap< StringHash, SharedPtr< ShaderVariation > >	vsVariations_
	Vertex shader variations.
HashMap< StringHash, SharedPtr< ShaderVariation > >	psVariations_
	Pixel shader variations.
unsigned	timeStamp_
	Source code timestamp.
unsigned	numVariations_
	Number of unique variations so far.

Additional Inherited Members
Protected Attributes inherited from Urho3D::Object
Context *	context_
	Execution context.

Detailed Description

Shader resource consisting of several shader variations.

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The documentation for this class was generated from the following files:

• Source/Urho3D/Graphics/Shader.h
• Source/Urho3D/Graphics/Shader.cpp