Texture resource. More...

#include <OpenGl_Texture.hxx>

Inheritance diagram for OpenGl_Texture:

[legend]

Public Member Functions
	OpenGl_Texture (const TCollection_AsciiString &theResourceId=TCollection_AsciiString(), const Handle< Graphic3d_TextureParams > &theParams=Handle< Graphic3d_TextureParams >())
	Create uninitialized texture.

virtual	~OpenGl_Texture ()
	Destroy object.

virtual bool	IsValid () const

unsigned int	GetTarget () const

const Graphic3d_Vec3i &	Size () const
	Return texture dimensions (0 LOD)

Standard_Integer	SizeX () const
	Return texture width (0 LOD)

Standard_Integer	SizeY () const
	Return texture height (0 LOD)

Standard_Integer	SizeZ () const
	Return texture depth (0 LOD)

unsigned int	TextureId () const

unsigned int	GetFormat () const

Standard_Integer	SizedFormat () const

bool	IsAlpha () const
	Return true for GL_RED and GL_ALPHA formats.

void	SetAlpha (const bool theValue)
	Setup to interpret the format as Alpha by Shader Manager (should be GL_ALPHA within compatible context or GL_RED otherwise).

bool	IsTopDown () const
	Return if 2D surface is defined top-down (TRUE) or bottom-up (FALSE). Normally set from Image_PixMap::IsTopDown() within texture initialization.

void	SetTopDown (bool theIsTopDown)
	Set if 2D surface is defined top-down (TRUE) or bottom-up (FALSE).

bool	Create (const Handle< OpenGl_Context > &theCtx)
	Creates Texture id if not yet generated. Data should be initialized by another method.

virtual void	Release (OpenGl_Context *theCtx) override
	Destroy object - will release GPU memory if any.

const Handle< OpenGl_Sampler > &	Sampler () const
	Return texture sampler.

void	SetSampler (const Handle< OpenGl_Sampler > &theSampler)
	Set texture sampler.

bool	InitSamplerObject (const Handle< OpenGl_Context > &theCtx)
	Initialize the Sampler Object (as OpenGL object).

void	Bind (const Handle< OpenGl_Context > &theCtx) const
	Bind this Texture to the unit specified in sampler parameters. Also binds Sampler Object if it is allocated.

void	Unbind (const Handle< OpenGl_Context > &theCtx) const
	Unbind texture from the unit specified in sampler parameters. Also unbinds Sampler Object if it is allocated.

void	Bind (const Handle< OpenGl_Context > &theCtx, const Graphic3d_TextureUnit theTextureUnit) const
	Bind this Texture to specified unit. Also binds Sampler Object if it is allocated.

void	Unbind (const Handle< OpenGl_Context > &theCtx, const Graphic3d_TextureUnit theTextureUnit) const
	Unbind texture from specified unit. Also unbinds Sampler Object if it is allocated.

Standard_Size	Revision () const
	Revision of associated data source.

void	SetRevision (const Standard_Size theRevision)
	Set revision of associated data source.

bool	Init (const Handle< OpenGl_Context > &theCtx, const Image_PixMap &theImage, const Graphic3d_TypeOfTexture theType, const Standard_Boolean theIsColorMap)
	Notice that texture will be unbound after this call.

bool	Init (const Handle< OpenGl_Context > &theCtx, const OpenGl_TextureFormat &theFormat, const Graphic3d_Vec3i &theSizeXYZ, const Graphic3d_TypeOfTexture theType, const Image_PixMap *theImage=NULL)
	Initialize the texture with specified format, size and texture type. If theImage is empty the texture data will contain trash. Notice that texture will be unbound after this call.

bool	Init (const Handle< OpenGl_Context > &theCtx, const OpenGl_TextureFormat &theFormat, const Graphic3d_Vec2i &theSizeXY, const Graphic3d_TypeOfTexture theType, const Image_PixMap *theImage=NULL)
	Initialize the 2D texture with specified format, size and texture type. If theImage is empty the texture data will contain trash. Notice that texture will be unbound after this call.

bool	Init (const Handle< OpenGl_Context > &theCtx, const Handle< Graphic3d_TextureRoot > &theTextureMap)
	Initialize the texture with Graphic3d_TextureMap. It is an universal way to initialize. Suitable initialization method will be chosen.

bool	GenerateMipmaps (const Handle< OpenGl_Context > &theCtx)
	Generate mipmaps.

bool	InitCompressed (const Handle< OpenGl_Context > &theCtx, const Image_CompressedPixMap &theImage, const Standard_Boolean theIsColorMap)
	Initialize the texture with Image_CompressedPixMap.

bool	Init2DMultisample (const Handle< OpenGl_Context > &theCtx, const Standard_Integer theNbSamples, const Standard_Integer theTextFormat, const Standard_Integer theSizeX, const Standard_Integer theSizeY)
	Initialize the 2D multisampling texture using glTexImage2DMultisample().

bool	InitRectangle (const Handle< OpenGl_Context > &theCtx, const Standard_Integer theSizeX, const Standard_Integer theSizeY, const OpenGl_TextureFormat &theFormat)
	Allocates texture rectangle with specified format and size.

bool	Init3D (const Handle< OpenGl_Context > &theCtx, const OpenGl_TextureFormat &theFormat, const Graphic3d_Vec3i &theSizeXYZ, const void *thePixels)
	Initializes 3D texture rectangle with specified format and size.

Standard_Boolean	HasMipmaps () const

Standard_Integer	MaxMipmapLevel () const
	Return upper mipmap level index (0 means no mipmaps).

Standard_Integer	NbSamples () const
	Return number of MSAA samples.

virtual Standard_Size	EstimatedDataSize () const override
	Returns estimated GPU memory usage for holding data without considering overheads and allocation alignment rules.

virtual bool	IsPointSprite () const
	Returns TRUE for point sprite texture.

bool	ImageDump (Image_PixMap &theImage, const Handle< OpenGl_Context > &theCtx, Graphic3d_TextureUnit theTexUnit, Standard_Integer theLevel=0, Standard_Integer theCubeSide=0) const
	Auxiliary method for making an image dump from texture data.

bool	Init (const Handle< OpenGl_Context > &theCtx, const Standard_Integer theTextFormat, const unsigned int thePixelFormat, const unsigned int theDataType, const Standard_Integer theSizeX, const Standard_Integer theSizeY, const Graphic3d_TypeOfTexture theType, const Image_PixMap *theImage=NULL)

bool	Init (const Handle< OpenGl_Context > &theCtx, const Image_PixMap &theImage, const Graphic3d_TypeOfTexture theType)

bool	Init3D (const Handle< OpenGl_Context > &theCtx, const Standard_Integer theTextFormat, const unsigned int thePixelFormat, const unsigned int theDataType, const Standard_Integer theSizeX, const Standard_Integer theSizeY, const Standard_Integer theSizeZ, const void *thePixels)

bool	InitCubeMap (const Handle< OpenGl_Context > &theCtx, const Handle< Graphic3d_CubeMap > &theCubeMap, Standard_Size theSize, Image_Format theFormat, Standard_Boolean theToGenMipmap, Standard_Boolean theIsColorMap)
	Initializes 6 sides of cubemap. If theCubeMap is not NULL then size and format will be taken from it and corresponding arguments will be ignored. Otherwise this parameters will be taken from arguments.

Public Member Functions inherited from OpenGl_NamedResource
	OpenGl_NamedResource (const TCollection_AsciiString &theId)
	Empty constructor.

const TCollection_AsciiString &	ResourceId () const
	Return resource name.

Public Member Functions inherited from OpenGl_Resource
	OpenGl_Resource ()
	Empty constructor.

virtual	~OpenGl_Resource ()
	Destructor. Inheritors should call Clean (NULL) within it.

virtual void	DumpJson (Standard_OStream &theOStream, Standard_Integer theDepth=-1) const
	Dumps the content of me into the stream.

Public Member Functions inherited from Standard_Transient
	Standard_Transient ()
	Empty constructor.

	Standard_Transient (const Standard_Transient &)
	Copy constructor – does nothing.

Standard_Transient &	operator= (const Standard_Transient &)
	Assignment operator, needed to avoid copying reference counter.

virtual	~Standard_Transient ()
	Destructor must be virtual.

virtual const opencascade::handle< Standard_Type > &	DynamicType () const
	Returns a type descriptor about this object.

Standard_Boolean	IsInstance (const opencascade::handle< Standard_Type > &theType) const
	Returns a true value if this is an instance of Type.

Standard_Boolean	IsInstance (const Standard_CString theTypeName) const
	Returns a true value if this is an instance of TypeName.

Standard_Boolean	IsKind (const opencascade::handle< Standard_Type > &theType) const
	Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism.

Standard_Boolean	IsKind (const Standard_CString theTypeName) const
	Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism.

Standard_Transient *	This () const
	Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero.

Standard_Integer	GetRefCount () const noexcept
	Get the reference counter of this object.

void	IncrementRefCounter () noexcept
	Increments the reference counter of this object.

Standard_Integer	DecrementRefCounter () noexcept
	Decrements the reference counter of this object; returns the decremented value.

virtual void	Delete () const
	Memory deallocator for transient classes.

Static Public Member Functions
static Standard_Size	PixelSizeOfPixelFormat (Standard_Integer theInternalFormat)
	Return pixel size of pixel format in bytes. Note that this method considers that OpenGL natively supports this pixel format, which might be not the case - in the latter case, actual pixel size might differ!

static bool	GetDataFormat (const Handle< OpenGl_Context > &theCtx, const Image_Format theFormat, Standard_Integer &theTextFormat, unsigned int &thePixelFormat, unsigned int &theDataType)

static bool	GetDataFormat (const Handle< OpenGl_Context > &theCtx, const Image_PixMap &theData, Standard_Integer &theTextFormat, unsigned int &thePixelFormat, unsigned int &theDataType)

Static Public Member Functions inherited from Standard_Transient
static constexpr const char *	get_type_name ()
	Returns a type descriptor about this object.

static const opencascade::handle< Standard_Type > &	get_type_descriptor ()
	Returns type descriptor of Standard_Transient class.

Static Public Attributes
static const unsigned int	NO_TEXTURE = 0
	Helpful constants.

Protected Member Functions
void	applyDefaultSamplerParams (const Handle< OpenGl_Context > &theCtx)
	Apply default sampler parameters after texture creation.

Protected Attributes
Handle< OpenGl_Sampler >	mySampler
	texture sampler

Standard_Size	myRevision
	revision of associated data source

unsigned int	myTextureId
	GL resource ID.

unsigned int	myTarget
	GL_TEXTURE_1D/GL_TEXTURE_2D/GL_TEXTURE_3D.

Graphic3d_Vec3i	mySize
	texture width x height x depth

unsigned int	myTextFormat
	texture format - GL_RGB, GL_RGBA,...

Standard_Integer	mySizedFormat
	internal (sized) texture format

Standard_Integer	myNbSamples
	number of MSAA samples

Standard_Integer	myMaxMipLevel
	upper mipmap level index (0 means no mipmaps)

bool	myIsAlpha
	indicates alpha format

bool	myIsTopDown
	indicates if 2D surface is defined top-down (TRUE) or bottom-up (FALSE)

Protected Attributes inherited from OpenGl_NamedResource
TCollection_AsciiString	myResourceId
	resource name

Additional Inherited Members
Public Types inherited from Standard_Transient
typedef void	base_type
	Returns a type descriptor about this object.

Detailed Description

Texture resource.

Constructor & Destructor Documentation

◆ OpenGl_Texture()

OpenGl_Texture::OpenGl_Texture	(	const TCollection_AsciiString &	theResourceId = `TCollection_AsciiString()`,
		const Handle< Graphic3d_TextureParams > &	theParams = `Handle< Graphic3d_TextureParams >()`
	)

Create uninitialized texture.

◆ ~OpenGl_Texture()

virtual OpenGl_Texture::~OpenGl_Texture ( )

virtual

Destroy object.

Member Function Documentation

◆ applyDefaultSamplerParams()

void OpenGl_Texture::applyDefaultSamplerParams ( const Handle< OpenGl_Context > & theCtx )

protected

Apply default sampler parameters after texture creation.

◆ Bind() [1/2]

void OpenGl_Texture::Bind ( const Handle< OpenGl_Context > & theCtx ) const

inline

Bind this Texture to the unit specified in sampler parameters. Also binds Sampler Object if it is allocated.

◆ Bind() [2/2]

void OpenGl_Texture::Bind	(	const Handle< OpenGl_Context > &	theCtx,
		const Graphic3d_TextureUnit	theTextureUnit
	)		const

Bind this Texture to specified unit. Also binds Sampler Object if it is allocated.

◆ Create()

bool OpenGl_Texture::Create ( const Handle< OpenGl_Context > & theCtx )

Creates Texture id if not yet generated. Data should be initialized by another method.

◆ EstimatedDataSize()

virtual Standard_Size OpenGl_Texture::EstimatedDataSize ( ) const

overridevirtual

Returns estimated GPU memory usage for holding data without considering overheads and allocation alignment rules.

Implements OpenGl_Resource.

◆ GenerateMipmaps()

bool OpenGl_Texture::GenerateMipmaps ( const Handle< OpenGl_Context > & theCtx )

Generate mipmaps.

◆ GetDataFormat() [1/2]

static bool OpenGl_Texture::GetDataFormat	(	const Handle< OpenGl_Context > &	theCtx,
		const Image_Format	theFormat,
		Standard_Integer &	theTextFormat,
		unsigned int &	thePixelFormat,
		unsigned int &	theDataType
	)

inlinestatic

Deprecated:: ("Deprecated method, OpenGl_TextureFormat::FindFormat() should be used instead")

◆ GetDataFormat() [2/2]

static bool OpenGl_Texture::GetDataFormat	(	const Handle< OpenGl_Context > &	theCtx,
		const Image_PixMap &	theData,
		Standard_Integer &	theTextFormat,
		unsigned int &	thePixelFormat,
		unsigned int &	theDataType
	)

inlinestatic

Deprecated:: ("Deprecated method, OpenGl_TextureFormat::FindFormat() should be used instead")

◆ GetFormat()

unsigned int OpenGl_Texture::GetFormat ( ) const

inline

Returns: texture format (not sized)

◆ GetTarget()

unsigned int OpenGl_Texture::GetTarget ( ) const

inline

Returns: target to which the texture is bound (GL_TEXTURE_1D, GL_TEXTURE_2D)

◆ HasMipmaps()

Standard_Boolean OpenGl_Texture::HasMipmaps ( ) const

inline

Returns: true if texture was generated within mipmaps

◆ ImageDump()

bool OpenGl_Texture::ImageDump	(	Image_PixMap &	theImage,
		const Handle< OpenGl_Context > &	theCtx,
		Graphic3d_TextureUnit	theTexUnit,
		Standard_Integer	theLevel = `0`,
		Standard_Integer	theCubeSide = `0`
	)		const

Auxiliary method for making an image dump from texture data.

Parameters

theImage	[out] result image data (will be overridden)
theCtx	[in] active GL context
theTexUnit	[in] texture slot to use
theLevel	[in] mipmap level to dump
theCubeSide	[in] cubemap side to dump within [0, 5] range

Returns: FALSE on error

◆ Init() [1/6]

bool OpenGl_Texture::Init	(	const Handle< OpenGl_Context > &	theCtx,
		const Handle< Graphic3d_TextureRoot > &	theTextureMap
	)

Initialize the texture with Graphic3d_TextureMap. It is an universal way to initialize. Suitable initialization method will be chosen.

◆ Init() [2/6]

bool OpenGl_Texture::Init	(	const Handle< OpenGl_Context > &	theCtx,
		const Image_PixMap &	theImage,
		const Graphic3d_TypeOfTexture	theType
	)

inline

Deprecated:: ("Deprecated method, theIsColorMap parameter should be explicitly specified")

◆ Init() [3/6]

bool OpenGl_Texture::Init	(	const Handle< OpenGl_Context > &	theCtx,
		const Image_PixMap &	theImage,
		const Graphic3d_TypeOfTexture	theType,
		const Standard_Boolean	theIsColorMap
	)

Notice that texture will be unbound after this call.

◆ Init() [4/6]

bool OpenGl_Texture::Init	(	const Handle< OpenGl_Context > &	theCtx,
		const OpenGl_TextureFormat &	theFormat,
		const Graphic3d_Vec2i &	theSizeXY,
		const Graphic3d_TypeOfTexture	theType,
		const Image_PixMap *	theImage = `NULL`
	)

inline

Initialize the 2D texture with specified format, size and texture type. If theImage is empty the texture data will contain trash. Notice that texture will be unbound after this call.

◆ Init() [5/6]

bool OpenGl_Texture::Init	(	const Handle< OpenGl_Context > &	theCtx,
		const OpenGl_TextureFormat &	theFormat,
		const Graphic3d_Vec3i &	theSizeXYZ,
		const Graphic3d_TypeOfTexture	theType,
		const Image_PixMap *	theImage = `NULL`
	)

Initialize the texture with specified format, size and texture type. If theImage is empty the texture data will contain trash. Notice that texture will be unbound after this call.

◆ Init() [6/6]

bool OpenGl_Texture::Init	(	const Handle< OpenGl_Context > &	theCtx,
		const Standard_Integer	theTextFormat,
		const unsigned int	thePixelFormat,
		const unsigned int	theDataType,
		const Standard_Integer	theSizeX,
		const Standard_Integer	theSizeY,
		const Graphic3d_TypeOfTexture	theType,
		const Image_PixMap *	theImage = `NULL`
	)

inline

Deprecated:: ("Deprecated method, OpenGl_TextureFormat should be passed instead of separate parameters")

◆ Init2DMultisample()

bool OpenGl_Texture::Init2DMultisample	(	const Handle< OpenGl_Context > &	theCtx,
		const Standard_Integer	theNbSamples,
		const Standard_Integer	theTextFormat,
		const Standard_Integer	theSizeX,
		const Standard_Integer	theSizeY
	)

Initialize the 2D multisampling texture using glTexImage2DMultisample().

◆ Init3D() [1/2]

bool OpenGl_Texture::Init3D	(	const Handle< OpenGl_Context > &	theCtx,
		const OpenGl_TextureFormat &	theFormat,
		const Graphic3d_Vec3i &	theSizeXYZ,
		const void *	thePixels
	)

Initializes 3D texture rectangle with specified format and size.

◆ Init3D() [2/2]

bool OpenGl_Texture::Init3D	(	const Handle< OpenGl_Context > &	theCtx,
		const Standard_Integer	theTextFormat,
		const unsigned int	thePixelFormat,
		const unsigned int	theDataType,
		const Standard_Integer	theSizeX,
		const Standard_Integer	theSizeY,
		const Standard_Integer	theSizeZ,
		const void *	thePixels
	)

inline

Deprecated:: ("Deprecated method, OpenGl_TextureFormat should be passed instead of separate parameters")

◆ InitCompressed()

bool OpenGl_Texture::InitCompressed	(	const Handle< OpenGl_Context > &	theCtx,
		const Image_CompressedPixMap &	theImage,
		const Standard_Boolean	theIsColorMap
	)

Initialize the texture with Image_CompressedPixMap.

◆ InitCubeMap()

bool OpenGl_Texture::InitCubeMap	(	const Handle< OpenGl_Context > &	theCtx,
		const Handle< Graphic3d_CubeMap > &	theCubeMap,
		Standard_Size	theSize,
		Image_Format	theFormat,
		Standard_Boolean	theToGenMipmap,
		Standard_Boolean	theIsColorMap
	)

Initializes 6 sides of cubemap. If theCubeMap is not NULL then size and format will be taken from it and corresponding arguments will be ignored. Otherwise this parameters will be taken from arguments.

Parameters

theCtx	[in] active OpenGL context
theCubeMap	[in] cubemap definition, can be NULL
theSize	[in] cubemap dimensions
theFormat	[in] image format
theToGenMipmap	[in] flag to generate mipmaped cubemap
theIsColorMap	[in] flag indicating cubemap storing color values

◆ InitRectangle()

bool OpenGl_Texture::InitRectangle	(	const Handle< OpenGl_Context > &	theCtx,
		const Standard_Integer	theSizeX,
		const Standard_Integer	theSizeY,
		const OpenGl_TextureFormat &	theFormat
	)

Allocates texture rectangle with specified format and size.

Note: Texture data is not initialized (will contain trash).

◆ InitSamplerObject()

bool OpenGl_Texture::InitSamplerObject ( const Handle< OpenGl_Context > & theCtx )

Initialize the Sampler Object (as OpenGL object).

Parameters

theCtx currently bound OpenGL context

◆ IsAlpha()

bool OpenGl_Texture::IsAlpha ( ) const

inline

Return true for GL_RED and GL_ALPHA formats.

◆ IsPointSprite()

virtual bool OpenGl_Texture::IsPointSprite ( ) const

inlinevirtual

Returns TRUE for point sprite texture.

Reimplemented in OpenGl_PointSprite.

◆ IsTopDown()

bool OpenGl_Texture::IsTopDown ( ) const

inline

Return if 2D surface is defined top-down (TRUE) or bottom-up (FALSE). Normally set from Image_PixMap::IsTopDown() within texture initialization.

◆ IsValid()

virtual bool OpenGl_Texture::IsValid ( ) const

inlinevirtual

Returns: true if current object was initialized

Reimplemented in OpenGl_PointSprite.

◆ MaxMipmapLevel()

Standard_Integer OpenGl_Texture::MaxMipmapLevel ( ) const

inline

Return upper mipmap level index (0 means no mipmaps).

◆ NbSamples()

Standard_Integer OpenGl_Texture::NbSamples ( ) const

inline

Return number of MSAA samples.

◆ PixelSizeOfPixelFormat()

static Standard_Size OpenGl_Texture::PixelSizeOfPixelFormat ( Standard_Integer theInternalFormat )

static

Return pixel size of pixel format in bytes. Note that this method considers that OpenGL natively supports this pixel format, which might be not the case - in the latter case, actual pixel size might differ!

◆ Release()

virtual void OpenGl_Texture::Release ( OpenGl_Context * theCtx )

overridevirtual

Destroy object - will release GPU memory if any.

Implements OpenGl_Resource.

Reimplemented in OpenGl_PointSprite.

◆ Revision()

Standard_Size OpenGl_Texture::Revision ( ) const

inline

Revision of associated data source.

◆ Sampler()

const Handle< OpenGl_Sampler > & OpenGl_Texture::Sampler ( ) const

inline

Return texture sampler.

◆ SetAlpha()

void OpenGl_Texture::SetAlpha ( const bool theValue )

inline

Setup to interpret the format as Alpha by Shader Manager (should be GL_ALPHA within compatible context or GL_RED otherwise).

◆ SetRevision()

void OpenGl_Texture::SetRevision ( const Standard_Size theRevision )

inline

Set revision of associated data source.

◆ SetSampler()

void OpenGl_Texture::SetSampler ( const Handle< OpenGl_Sampler > & theSampler )

inline

Set texture sampler.

◆ SetTopDown()

void OpenGl_Texture::SetTopDown ( bool theIsTopDown )

inline

Set if 2D surface is defined top-down (TRUE) or bottom-up (FALSE).

◆ Size()

const Graphic3d_Vec3i & OpenGl_Texture::Size ( ) const

inline

Return texture dimensions (0 LOD)

◆ SizedFormat()

Standard_Integer OpenGl_Texture::SizedFormat ( ) const

inline

Returns: texture format (sized)

◆ SizeX()

Standard_Integer OpenGl_Texture::SizeX ( ) const

inline

Return texture width (0 LOD)

◆ SizeY()

Standard_Integer OpenGl_Texture::SizeY ( ) const

inline

Return texture height (0 LOD)

◆ SizeZ()

Standard_Integer OpenGl_Texture::SizeZ ( ) const

inline

Return texture depth (0 LOD)

◆ TextureId()

unsigned int OpenGl_Texture::TextureId ( ) const

inline

Returns: texture ID

◆ Unbind() [1/2]

void OpenGl_Texture::Unbind ( const Handle< OpenGl_Context > & theCtx ) const

inline

Unbind texture from the unit specified in sampler parameters. Also unbinds Sampler Object if it is allocated.

◆ Unbind() [2/2]

void OpenGl_Texture::Unbind	(	const Handle< OpenGl_Context > &	theCtx,
		const Graphic3d_TextureUnit	theTextureUnit
	)		const

Unbind texture from specified unit. Also unbinds Sampler Object if it is allocated.

Field Documentation

◆ myIsAlpha

bool OpenGl_Texture::myIsAlpha

protected

indicates alpha format

◆ myIsTopDown

bool OpenGl_Texture::myIsTopDown

protected

indicates if 2D surface is defined top-down (TRUE) or bottom-up (FALSE)

◆ myMaxMipLevel

Standard_Integer OpenGl_Texture::myMaxMipLevel

protected

upper mipmap level index (0 means no mipmaps)

◆ myNbSamples

Standard_Integer OpenGl_Texture::myNbSamples

protected

number of MSAA samples

◆ myRevision

Standard_Size OpenGl_Texture::myRevision

protected

revision of associated data source

◆ mySampler

Handle< OpenGl_Sampler > OpenGl_Texture::mySampler

protected

texture sampler

◆ mySize

Graphic3d_Vec3i OpenGl_Texture::mySize

protected

texture width x height x depth

◆ mySizedFormat

Standard_Integer OpenGl_Texture::mySizedFormat

protected

internal (sized) texture format

◆ myTarget

unsigned int OpenGl_Texture::myTarget

protected

GL_TEXTURE_1D/GL_TEXTURE_2D/GL_TEXTURE_3D.

◆ myTextFormat

unsigned int OpenGl_Texture::myTextFormat

protected

texture format - GL_RGB, GL_RGBA,...

◆ myTextureId

unsigned int OpenGl_Texture::myTextureId

protected

GL resource ID.

◆ NO_TEXTURE

const unsigned int OpenGl_Texture::NO_TEXTURE = 0

static

Helpful constants.

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

OpenGl_Texture.hxx

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ OpenGl_Texture()

◆ ~OpenGl_Texture()

Member Function Documentation

◆ applyDefaultSamplerParams()

◆ Bind() [1/2]

◆ Bind() [2/2]

◆ Create()

◆ EstimatedDataSize()

◆ GenerateMipmaps()

◆ GetDataFormat() [1/2]

◆ GetDataFormat() [2/2]

◆ GetFormat()

◆ GetTarget()

◆ HasMipmaps()

◆ ImageDump()

◆ Init() [1/6]

◆ Init() [2/6]

◆ Init() [3/6]

◆ Init() [4/6]

◆ Init() [5/6]

◆ Init() [6/6]

◆ Init2DMultisample()

◆ Init3D() [1/2]

◆ Init3D() [2/2]

◆ InitCompressed()

◆ InitCubeMap()

◆ InitRectangle()

◆ InitSamplerObject()

◆ IsAlpha()

◆ IsPointSprite()

◆ IsTopDown()

◆ IsValid()

◆ MaxMipmapLevel()

◆ NbSamples()

◆ PixelSizeOfPixelFormat()

◆ Release()

◆ Revision()

◆ Sampler()

◆ SetAlpha()

◆ SetRevision()

◆ SetSampler()

◆ SetTopDown()

◆ Size()

◆ SizedFormat()

◆ SizeX()

◆ SizeY()

◆ SizeZ()

◆ TextureId()

◆ Unbind() [1/2]

◆ Unbind() [2/2]

Field Documentation

◆ myIsAlpha

◆ myIsTopDown

◆ myMaxMipLevel

◆ myNbSamples

◆ myRevision

◆ mySampler

◆ mySize

◆ mySizedFormat

◆ myTarget

◆ myTextFormat

◆ myTextureId

◆ NO_TEXTURE