OpenGl_TextureFormat Class Reference

Stores parameters of OpenGL texture format. More...

#include <OpenGl_TextureFormat.hxx>

Public Member Functions
	OpenGl_TextureFormat ()
	Empty constructor (invalid texture format).
bool	IsValid () const
	Return TRUE if format is defined.
GLint	InternalFormat () const
	Returns OpenGL internal format of the pixel data (example: GL_R32F).
void	SetInternalFormat (GLint theInternal)
	Sets texture internal format.
GLenum	PixelFormat () const
	Returns OpenGL format of the pixel data (example: GL_RED).
void	SetPixelFormat (GLenum theFormat)
	Sets OpenGL format of the pixel data.
GLint	DataType () const
	Returns OpenGL data type of the pixel data (example: GL_FLOAT).
void	SetDataType (GLint theType)
	Sets OpenGL data type of the pixel data.
GLint	NbComponents () const
	Returns number of components (channels). Here for debugging purposes.
void	SetNbComponents (GLint theNbComponents)
	Sets number of components (channels).
bool	IsSRGB () const
	Return TRUE if internal texture format is sRGB(A).
Image_Format	ImageFormat () const
	Returns image format (best match or Image_Format_UNKNOWN if no suitable fit).
void	SetImageFormat (Image_Format theFormat)
	Sets image format.
GLint	Internal () const
	Returns OpenGL internal format of the pixel data (example: GL_R32F).
GLenum	Format () const
	Returns OpenGL format of the pixel data (example: GL_RED).

Static Public Member Functions
template<class theCompType , int theNbComps>
static OpenGl_TextureFormat	Create ()
	Returns texture format for specified type and number of channels.
static OpenGl_TextureFormat	FindFormat (const Handle< OpenGl_Context > &theCtx, Image_Format theFormat, bool theIsColorMap)
	Find texture format suitable to specified image format.
static OpenGl_TextureFormat	FindSizedFormat (const Handle< OpenGl_Context > &theCtx, GLint theSizedFormat)
	Find texture format suitable to specified internal (sized) texture format.
static OpenGl_TextureFormat	FindCompressedFormat (const Handle< OpenGl_Context > &theCtx, Image_CompressedFormat theFormat, bool theIsColorMap)
	Find texture format suitable to specified compressed texture format.
static TCollection_AsciiString	FormatFormat (GLint theInternalFormat)
	Format pixel format enumeration.
static TCollection_AsciiString	FormatDataType (GLint theDataType)
	Format data type enumeration.

Detailed Description

Stores parameters of OpenGL texture format.

Constructor & Destructor Documentation

OpenGl_TextureFormat()

OpenGl_TextureFormat::OpenGl_TextureFormat ( )

inline

Empty constructor (invalid texture format).

Member Function Documentation

Create()

template<class theCompType , int theNbComps>

OpenGl_TextureFormat OpenGl_TextureFormat::Create ( )

inlinestatic

Returns texture format for specified type and number of channels.

Template Parameters

theCompType	component type
theNbComps	number of components

DataType()

GLint OpenGl_TextureFormat::DataType ( ) const

inline

Returns OpenGL data type of the pixel data (example: GL_FLOAT).

FindCompressedFormat()

static OpenGl_TextureFormat OpenGl_TextureFormat::FindCompressedFormat ( const Handle< OpenGl_Context > &  theCtx, Image_CompressedFormat  theFormat, bool  theIsColorMap  )

static

Find texture format suitable to specified compressed texture format.

Parameters

theCtx	[in] OpenGL context defining supported texture formats
theFormat	[in] compressed texture format

Returns

found format or invalid format

FindFormat()

static OpenGl_TextureFormat OpenGl_TextureFormat::FindFormat ( const Handle< OpenGl_Context > &  theCtx, Image_Format  theFormat, bool  theIsColorMap  )

static

Find texture format suitable to specified image format.

Parameters

theCtx	[in] OpenGL context defining supported texture formats
theFormat	[in] image format
theIsColorMap	[in] flag indicating color nature of image (to select sRGB texture)

Returns

found format or invalid format

FindSizedFormat()

static OpenGl_TextureFormat OpenGl_TextureFormat::FindSizedFormat ( const Handle< OpenGl_Context > &  theCtx, GLint  theSizedFormat  )

static

Find texture format suitable to specified internal (sized) texture format.

Parameters

theCtx	[in] OpenGL context defining supported texture formats
theSizedFormat	[in] sized (internal) texture format (example: GL_RGBA8)

Returns

found format or invalid format

Format()

GLenum OpenGl_TextureFormat::Format ( ) const

inline

Returns OpenGL format of the pixel data (example: GL_RED).

FormatDataType()

static TCollection_AsciiString OpenGl_TextureFormat::FormatDataType ( GLint  theDataType )

static

Format data type enumeration.

FormatFormat()

static TCollection_AsciiString OpenGl_TextureFormat::FormatFormat ( GLint  theInternalFormat )

static

Format pixel format enumeration.

ImageFormat()

Image_Format OpenGl_TextureFormat::ImageFormat ( ) const

inline

Returns image format (best match or Image_Format_UNKNOWN if no suitable fit).

Internal()

GLint OpenGl_TextureFormat::Internal ( ) const

inline

Returns OpenGL internal format of the pixel data (example: GL_R32F).

InternalFormat()

GLint OpenGl_TextureFormat::InternalFormat ( ) const

inline

Returns OpenGL internal format of the pixel data (example: GL_R32F).

IsSRGB()

bool OpenGl_TextureFormat::IsSRGB ( ) const

inline

Return TRUE if internal texture format is sRGB(A).

IsValid()

bool OpenGl_TextureFormat::IsValid ( ) const

inline

Return TRUE if format is defined.

NbComponents()

GLint OpenGl_TextureFormat::NbComponents ( ) const

inline

Returns number of components (channels). Here for debugging purposes.

PixelFormat()

GLenum OpenGl_TextureFormat::PixelFormat ( ) const

inline

Returns OpenGL format of the pixel data (example: GL_RED).

SetDataType()

void OpenGl_TextureFormat::SetDataType ( GLint  theType )

inline

Sets OpenGL data type of the pixel data.

SetImageFormat()

void OpenGl_TextureFormat::SetImageFormat ( Image_Format  theFormat )

inline

Sets image format.

SetInternalFormat()

void OpenGl_TextureFormat::SetInternalFormat ( GLint  theInternal )

inline

Sets texture internal format.

SetNbComponents()

void OpenGl_TextureFormat::SetNbComponents ( GLint  theNbComponents )

inline

Sets number of components (channels).

SetPixelFormat()

void OpenGl_TextureFormat::SetPixelFormat ( GLenum  theFormat )

inline

Sets OpenGL format of the pixel data.

---

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

• OpenGl_TextureFormat.hxx