Urho3D::Texture2D Class Reference

2D texture resource. More...

#include <OGLTexture2D.h>

Inheritance diagram for Urho3D::Texture2D:

Collaboration diagram for Urho3D::Texture2D:

Public Member Functions
	Texture2D (Context *context)
	Construct.
virtual	~Texture2D ()
	Destruct.
virtual bool	BeginLoad (Deserializer &source)
	Load resource from stream. May be called from a worker thread. Return true if successful.
virtual bool	EndLoad ()
	Finish resource loading. Always called from the main thread. Return true if successful.
virtual void	OnDeviceLost ()
	Mark the GPU resource destroyed on context destruction.
virtual void	OnDeviceReset ()
	Recreate the GPU resource and restore data if applicable.
virtual void	Release ()
	Release the texture.
bool	SetSize (int width, int height, unsigned format, TextureUsage usage=TEXTURE_STATIC)
	Set size, format and usage. Zero size will follow application window size. Return true if successful.
bool	SetData (unsigned level, int x, int y, int width, int height, const void *data)
	Set data either partially or fully on a mip level. Return true if successful.
bool	SetData (SharedPtr< Image > image, bool useAlpha=false)
	Set data from an image. Return true if successful. Optionally make a single channel image alpha-only.
bool	GetData (unsigned level, void *dest) const
	Get data from a mip level. The destination buffer must be big enough. Return true if successful.
RenderSurface *	GetRenderSurface () const
	Return render surface.
Public Member Functions inherited from Urho3D::Texture
	Texture (Context *context)
	Construct.
virtual	~Texture ()
	Destruct.
void	SetNumLevels (unsigned levels)
	Set number of requested mip levels. Needs to be called before setting size.
void	SetFilterMode (TextureFilterMode filter)
	Set filtering mode.
void	SetAddressMode (TextureCoordinate coord, TextureAddressMode address)
	Set addressing mode by texture coordinate.
void	SetShadowCompare (bool enable)
	Set shadow compare mode.
void	SetBorderColor (const Color &color)
	Set border color for border addressing mode.
void	SetSRGB (bool enable)
	Set sRGB sampling and writing mode.
void	SetBackupTexture (Texture *texture)
	Set backup texture to use when rendering to this texture.
void	SetMipsToSkip (int quality, int toSkip)
	Set mip levels to skip on a quality setting when loading. Ensures higher quality levels do not skip more.
void	SetParametersDirty ()
	Dirty the parameters.
void	UpdateParameters ()
	Update changed parameters to OpenGL. Called by Graphics when binding the texture.
unsigned	GetTarget () const
	Return texture's OpenGL target.
unsigned	GetFormat () const
	Return texture format.
bool	IsCompressed () const
	Return whether the texture format is compressed.
unsigned	GetLevels () const
	Return number of mip levels.
int	GetWidth () const
	Return width.
int	GetHeight () const
	Return height.
int	GetDepth () const
	Return height.
bool	GetParametersDirty () const
	Return whether parameters are dirty.
TextureFilterMode	GetFilterMode () const
	Return filtering mode.
TextureAddressMode	GetAddressMode (TextureCoordinate coord) const
	Return addressing mode by texture coordinate.
bool	GetShadowCompare () const
	Return whether shadow compare is enabled.
const Color &	GetBorderColor () const
	Return border color.
bool	GetSRGB () const
	Return whether is using sRGB sampling and writing.
Texture *	GetBackupTexture () const
	Return backup texture.
int	GetMipsToSkip (int quality) const
	Return mip levels to skip on a quality setting when loading.
int	GetLevelWidth (unsigned level) const
	Return mip level width, or 0 if level does not exist.
int	GetLevelHeight (unsigned level) const
	Return mip level width, or 0 if level does not exist.
int	GetLevelDepth (unsigned level) const
	Return mip level depth, or 0 if level does not exist.
TextureUsage	GetUsage () const
	Return texture usage type.
unsigned	GetDataSize (int width, int height) const
	Return data size in bytes for a rectangular region.
unsigned	GetDataSize (int width, int height, int depth) const
	Return data size in bytes for a volume region.
unsigned	GetRowDataSize (int width) const
	Return data size in bytes for a pixel or block row.
unsigned	GetComponents () const
	Return number of image components required to receive pixel data from GetData(), or 0 for compressed images.
void	SetParameters (XMLFile *xml)
	Set additional parameters from an XML file.
void	SetParameters (const XMLElement &element)
	Set additional parameters from an XML element.
unsigned	GetSRGBFormat (unsigned format)
	Return the corresponding SRGB texture format if supported. If not supported, return format unchanged.
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.
void	SetName (const String &name)
	Set 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
	Return name.
StringHash	GetNameHash () const
	Return name hash.
unsigned	GetMemoryUse () const
	Return memory use in bytes, possibly approximate.
unsigned	GetUseTimer ()
	Return time since last use in milliseconds. If referred to elsewhere than in the resource cache, returns always zero.
AsyncLoadState	GetAsyncLoadState () const
	Return the asynchronous loading state.
Public Member Functions inherited from Urho3D::Object
	Object (Context *context)
	Construct.
virtual	~Object ()
	Destruct. Clean up self from event sender & receiver structures.
virtual StringHash	GetType () const =0
	Return type hash.
virtual const String &	GetTypeName () const =0
	Return type name.
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.
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	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. More...
VariantMap &	GetEventDataMap () const
	Return a preallocated map for event data. Used for optimization to avoid constant re-allocation of event data maps.
Context *	GetContext () const
	Return execution context.
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
	Return object category. Categories are (optionally) registered along with the object factory. Return an empty string if the object category is not registered.
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.
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
	Return reference count.
int	WeakRefs () const
	Return weak reference count.
RefCount *	RefCountPtr ()
	Return pointer to the reference count structure.
Public Member Functions inherited from Urho3D::GPUObject
	GPUObject (Graphics *graphics)
	Construct with graphics subsystem pointer.
virtual	~GPUObject ()
	Destruct. Remove from the Graphics.
void	ClearDataLost ()
	Clear the data lost flag.
Graphics *	GetGraphics () const
	Return the graphics subsystem.
unsigned	GetGPUObject () const
	Return the object's OpenGL handle.
bool	IsDataLost () const
	Return whether data is lost due to context loss.
bool	HasPendingData () const
	Return whether has pending data assigned while context was lost.

Static Public Member Functions
static void	RegisterObject (Context *context)
	Register object factory.
Static Public Member Functions inherited from Urho3D::Texture
static unsigned	GetExternalFormat (unsigned format)
	Return the non-internal texture format corresponding to an OpenGL internal format.
static unsigned	GetDataType (unsigned format)
	Return the data type corresponding to an OpenGL internal format.

Protected Member Functions
virtual bool	Create ()
	Create texture.
Protected Member Functions inherited from Urho3D::Texture
void	CheckTextureBudget (StringHash type)
	Check whether texture memory budget has been exceeded. Free unused materials in that case to release the texture references.

Private Member Functions
	URHO3D_OBJECT (Texture2D, Texture)
void	HandleRenderSurfaceUpdate (StringHash eventType, VariantMap &eventData)
	Handle render surface update event.

Private Attributes
SharedPtr< RenderSurface >	renderSurface_
	Render surface.
SharedPtr< Image >	loadImage_
	Image file acquired during BeginLoad.
SharedPtr< XMLFile >	loadParameters_
	Parameter file acquired during BeginLoad.

Additional Inherited Members
Protected Attributes inherited from Urho3D::Texture
TextureUsage	usage_
	Texture usage type.
unsigned	target_
	OpenGL target.
unsigned	format_
	Texture format.
unsigned	levels_
	Current mip levels.
unsigned	requestedLevels_
	Requested mip levels.
int	width_
	Texture width.
int	height_
	Texture height.
int	depth_
	Texture depth.
bool	shadowCompare_
	Shadow compare mode.
bool	parametersDirty_
	Parameters dirty flag.
TextureFilterMode	filterMode_
	Filtering mode.
TextureAddressMode	addressMode_ [MAX_COORDS]
	Addressing mode.
unsigned	mipsToSkip_ [MAX_TEXTURE_QUALITY_LEVELS]
	Mip levels to skip when loading per texture quality setting.
Color	borderColor_
	Border color.
bool	sRGB_
	sRGB sampling and writing mode flag.
SharedPtr< Texture >	backupTexture_
	Backup texture.

Detailed Description

2D texture resource.

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

• /home/travis/build/urho3d/Urho3D/Source/Urho3D/Graphics/OpenGL/OGLTexture2D.h
• /home/travis/build/urho3d/Urho3D/Source/Urho3D/Graphics/OpenGL/OGLTexture2D.cpp