OpenGl_TextureBufferArb Class Reference

Texture Buffer Object. This is a special 1D texture that VBO-style initialized. The main differences from general 1D texture: More...

#include <OpenGl_TextureBufferArb.hxx>

Inheritance diagram for OpenGl_TextureBufferArb:

Public Member Functions
	OpenGl_TextureBufferArb ()
	Create uninitialized TBO.
virtual	~OpenGl_TextureBufferArb ()
	Destroy object, will throw exception if GPU memory not released with Release() before.
virtual GLenum	GetTarget () const
	Override VBO target.
bool	IsValid () const
	Returns true if TBO is valid. Notice that no any real GL call is performed!
virtual void	Release (const OpenGl_Context *theGlCtx)
	Destroy object - will release GPU memory if any.
bool	Create (const Handle< OpenGl_Context > &theGlCtx)
	Creates VBO and Texture names (ids) if not yet generated. Data should be initialized by another method.
bool	Init (const Handle< OpenGl_Context > &theGlCtx, const GLuint theComponentsNb, const GLsizei theElemsNb, const GLfloat *theData)
	Perform TBO initialization with specified data. Existing data will be deleted.
void	BindTexture (const Handle< OpenGl_Context > &theGlCtx, const GLenum theTextureUnit=GL_TEXTURE0) const
	Bind TBO to specified Texture Unit.
void	UnbindTexture (const Handle< OpenGl_Context > &theGlCtx, const GLenum theTextureUnit=GL_TEXTURE0) const
	Unbind TBO.
Static Public Attributes
static const GLuint	NO_TEXTURE = 0
	Helpful constants.
Protected Attributes
GLuint	myTextureId
	texture id
GLenum	myTexFormat
	internal texture format

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Detailed Description

• no interpolation between field;
• greater sizes;
• special sampler object in GLSL shader to access data by index.

Notice that though TBO is inherited from VBO this is to unify design user shouldn't cast it to base class and all really useful methods are declared in this class.

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Constructor & Destructor Documentation

OpenGl_TextureBufferArb::OpenGl_TextureBufferArb

(

)

virtual OpenGl_TextureBufferArb::~OpenGl_TextureBufferArb

(

)

[virtual]

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Member Function Documentation

void OpenGl_TextureBufferArb::BindTexture	(	const Handle< OpenGl_Context > &	theGlCtx,
		const GLenum	theTextureUnit = GL_TEXTURE0
	)		const

bool OpenGl_TextureBufferArb::Create

(

const Handle< OpenGl_Context > &

theGlCtx

)

Reimplemented from OpenGl_VertexBuffer.

virtual GLenum OpenGl_TextureBufferArb::GetTarget

(

)

const [virtual]

Reimplemented from OpenGl_VertexBuffer.

bool OpenGl_TextureBufferArb::Init	(	const Handle< OpenGl_Context > &	theGlCtx,
		const GLuint	theComponentsNb,
		const GLsizei	theElemsNb,
		const GLfloat *	theData
	)

Reimplemented from OpenGl_VertexBuffer.

bool OpenGl_TextureBufferArb::IsValid

(

)

const [inline]

Reimplemented from OpenGl_VertexBuffer.

virtual void OpenGl_TextureBufferArb::Release

(

const OpenGl_Context *

theGlCtx

)

[virtual]

Reimplemented from OpenGl_VertexBuffer.

void OpenGl_TextureBufferArb::UnbindTexture	(	const Handle< OpenGl_Context > &	theGlCtx,
		const GLenum	theTextureUnit = GL_TEXTURE0
	)		const

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Field Documentation

GLenum OpenGl_TextureBufferArb::myTexFormat [protected]

GLuint OpenGl_TextureBufferArb::myTextureId [protected]

const GLuint OpenGl_TextureBufferArb::NO_TEXTURE = 0 [static]

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

• OpenGl_TextureBufferArb.hxx