Texture image definition. The image can be stored as path to image file, as file path with the given offset and as a data buffer of encoded image. More...

#include <Image_Texture.hxx>

Inheritance diagram for Image_Texture:

[legend]

Public Member Functions
	Image_Texture (const TCollection_AsciiString &theFileName)
	Constructor pointing to file location.

	Image_Texture (const TCollection_AsciiString &theFileName, int64_t theOffset, int64_t theLength)
	Constructor pointing to file part.

	Image_Texture (const occ::handle< NCollection_Buffer > &theBuffer, const TCollection_AsciiString &theId)
	Constructor pointing to buffer.

const TCollection_AsciiString &	TextureId () const
	Return generated texture id.

const TCollection_AsciiString &	FilePath () const
	Return image file path.

int64_t	FileOffset () const
	Return offset within file.

int64_t	FileLength () const
	Return length of image data within the file after offset.

const occ::handle< NCollection_Buffer > &	DataBuffer () const
	Return buffer holding encoded image content.

TCollection_AsciiString	MimeType () const
	Return mime-type of image file based on ProbeImageFileFormat().

TCollection_AsciiString	ProbeImageFileFormat () const
	Return image file format.

virtual occ::handle< Image_CompressedPixMap >	ReadCompressedImage (const occ::handle< Image_SupportedFormats > &theSupported) const
	Image reader without decoding data for formats supported natively by GPUs.

virtual occ::handle< Image_PixMap >	ReadImage (const occ::handle< Image_SupportedFormats > &theSupported) const
	Image reader.

virtual bool	WriteImage (const TCollection_AsciiString &theFile)
	Write image to specified file without decoding data.

virtual bool	WriteImage (std::ostream &theStream, const TCollection_AsciiString &theFile)
	Write image to specified stream without decoding data.

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 ()=default
	Destructor must be virtual.

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

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

bool	IsInstance (const char *const theTypeName) const
	Returns a true value if this is an instance of TypeName.

bool	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.

bool	IsKind (const char *const 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.

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

void	IncrementRefCounter () noexcept
	Increments the reference counter of this object. Uses relaxed memory ordering since incrementing only requires atomicity, not synchronization with other memory operations.

int	DecrementRefCounter () noexcept
	Decrements the reference counter of this object; returns the decremented value. Uses release ordering for the decrement to ensure all writes to the object are visible before the count reaches zero. An acquire fence is added only when the count reaches zero, ensuring proper synchronization before deletion. This is more efficient than using acq_rel for every decrement.

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

hasher interface
Dumps the content of me into the stream
TCollection_AsciiString	myTextureId
	generated texture id

TCollection_AsciiString	myImagePath
	image file path

occ::handle< NCollection_Buffer >	myBuffer
	image buffer

int64_t	myOffset
	offset within file

int64_t	myLength
	length within file

virtual void	DumpJson (Standard_OStream &theOStream, int theDepth=-1) const
	generated texture id

virtual occ::handle< Image_PixMap >	loadImageFile (const TCollection_AsciiString &thePath) const
	Read image from normal image file.

virtual occ::handle< Image_PixMap >	loadImageOffset (const TCollection_AsciiString &thePath, int64_t theOffset, int64_t theLength) const
	Read image from file with some offset.

virtual occ::handle< Image_PixMap >	loadImageBuffer (const occ::handle< NCollection_Buffer > &theBuffer, const TCollection_AsciiString &theId) const
	Read image from buffer.

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

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.

Detailed Description

Texture image definition. The image can be stored as path to image file, as file path with the given offset and as a data buffer of encoded image.

Constructor & Destructor Documentation

◆ Image_Texture() [1/3]

Image_Texture::Image_Texture ( const TCollection_AsciiString & theFileName )

explicit

Constructor pointing to file location.

◆ Image_Texture() [2/3]

Image_Texture::Image_Texture	(	const TCollection_AsciiString &	theFileName,
		int64_t	theOffset,
		int64_t	theLength )

explicit

Constructor pointing to file part.

◆ Image_Texture() [3/3]

Image_Texture::Image_Texture	(	const occ::handle< NCollection_Buffer > &	theBuffer,
		const TCollection_AsciiString &	theId )

explicit

Constructor pointing to buffer.

Member Function Documentation

◆ DataBuffer()

const occ::handle< NCollection_Buffer > & Image_Texture::DataBuffer ( ) const

inline

Return buffer holding encoded image content.

◆ DumpJson()

virtual void Image_Texture::DumpJson	(	Standard_OStream &	theOStream,
		int	theDepth = -1 ) const

virtual

generated texture id

◆ FileLength()

int64_t Image_Texture::FileLength ( ) const

inline

Return length of image data within the file after offset.

◆ FileOffset()

int64_t Image_Texture::FileOffset ( ) const

inline

Return offset within file.

◆ FilePath()

const TCollection_AsciiString & Image_Texture::FilePath ( ) const

inline

Return image file path.

◆ loadImageBuffer()

virtual occ::handle< Image_PixMap > Image_Texture::loadImageBuffer	(	const occ::handle< NCollection_Buffer > &	theBuffer,
		const TCollection_AsciiString &	theId ) const

protectedvirtual

Read image from buffer.

◆ loadImageFile()

virtual occ::handle< Image_PixMap > Image_Texture::loadImageFile ( const TCollection_AsciiString & thePath ) const

protectedvirtual

Read image from normal image file.

◆ loadImageOffset()

virtual occ::handle< Image_PixMap > Image_Texture::loadImageOffset	(	const TCollection_AsciiString &	thePath,
		int64_t	theOffset,
		int64_t	theLength ) const

protectedvirtual

Read image from file with some offset.

◆ MimeType()

TCollection_AsciiString Image_Texture::MimeType ( ) const

Return mime-type of image file based on ProbeImageFileFormat().

◆ ProbeImageFileFormat()

TCollection_AsciiString Image_Texture::ProbeImageFileFormat ( ) const

Return image file format.

◆ ReadCompressedImage()

virtual occ::handle< Image_CompressedPixMap > Image_Texture::ReadCompressedImage ( const occ::handle< Image_SupportedFormats > & theSupported ) const

virtual

Image reader without decoding data for formats supported natively by GPUs.

◆ ReadImage()

virtual occ::handle< Image_PixMap > Image_Texture::ReadImage ( const occ::handle< Image_SupportedFormats > & theSupported ) const

virtual

Image reader.

◆ TextureId()

const TCollection_AsciiString & Image_Texture::TextureId ( ) const

inline

Return generated texture id.

◆ WriteImage() [1/2]

virtual bool Image_Texture::WriteImage ( const TCollection_AsciiString & theFile )

virtual

Write image to specified file without decoding data.

◆ WriteImage() [2/2]

virtual bool Image_Texture::WriteImage	(	std::ostream &	theStream,
		const TCollection_AsciiString &	theFile )

virtual

Write image to specified stream without decoding data.

Field Documentation

◆ myBuffer

occ::handle<NCollection_Buffer> Image_Texture::myBuffer

protected

image buffer

◆ myImagePath

TCollection_AsciiString Image_Texture::myImagePath

protected

image file path

◆ myLength

int64_t Image_Texture::myLength

protected

length within file

◆ myOffset

int64_t Image_Texture::myOffset

protected

offset within file

◆ myTextureId

TCollection_AsciiString Image_Texture::myTextureId

protected

generated texture id

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

Image_Texture.hxx

Public Member Functions

hasher interface

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Image_Texture() [1/3]

◆ Image_Texture() [2/3]

◆ Image_Texture() [3/3]

Member Function Documentation

◆ DataBuffer()

◆ DumpJson()

◆ FileLength()

◆ FileOffset()

◆ FilePath()

◆ loadImageBuffer()

◆ loadImageFile()

◆ loadImageOffset()

◆ MimeType()

◆ ProbeImageFileFormat()

◆ ReadCompressedImage()

◆ ReadImage()

◆ TextureId()

◆ WriteImage() [1/2]

◆ WriteImage() [2/2]

Field Documentation

◆ myBuffer

◆ myImagePath

◆ myLength

◆ myOffset

◆ myTextureId