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osg::Texture2D Class Reference

Texture state class which encapsulates OpenGl texture functionality. More...

Inheritance diagram for osg::Texture2D:

[legend]List of all members.

Public Methods
	Texture2D ()
	Texture2D (const Texture2D &text, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	Copy constructor using CopyOp to manage deep vs shallow copy.
	META_StateAttribute (osg, Texture2D, TEXTURE)
virtual int	compare (const StateAttribute &rhs) const
	return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs.
virtual void	getAssociatedModes (std::vector< GLMode > &modes) const
	return the modes associated with this StateSet
void	setImage (Image *image)
	Set the texture image.
Image *	getImage ()
	Get the texture image.
const Image *	getImage () const
	Get the const texture image.
void	setTextureSize (const int width, const int height) const
	Set the texture width and height.
void	getTextureSize (int &width, int &height) const
	Get the texture subload width.
void	setSubloadCallback (SubloadCallback *cb)
SubloadCallback *	getSubloadCallback ()
const SubloadCallback *	getSubloadCallback () const
void	setNumMipmapLevels (unsigned int num) const
	Set the number of mip map levels the the texture has been created with, should only be called within an osg::Texuture::apply() and custom OpenGL texture load.
unsigned int	getNumMipmapLevels () const
	Get the number of mip map levels the the texture has been created with.
void	copyTexImage2D (State &state, int x, int y, int width, int height)
	Copy pixels into a 2D texture image.As per glCopyTexImage2D.
void	copyTexSubImage2D (State &state, int xoffset, int yoffset, int x, int y, int width, int height)
	Copy a two-dimensional texture subimage.
virtual void	apply (State &state) const
	On first apply (unless already compiled), create the minmapped texture and bind it, subsequent apply will simple bind to texture.
Protected Methods
virtual	~Texture2D ()
virtual void	computeInternalFormat () const
Protected Attributes
ref_ptr< Image >	_image
GLsizei	_textureWidth
GLsizei	_textureHeight
GLsizei	_numMimpmapLevels
ref_ptr< SubloadCallback >	_subloadCallback

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Detailed Description

Texture state class which encapsulates OpenGl texture functionality.

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Constructor & Destructor Documentation

osg::Texture2D::Texture2D (    )

osg::Texture2D::Texture2D (  const Texture2D &    text, const CopyOp &    copyop = CopyOp::SHALLOW_COPY )

Copy constructor using CopyOp to manage deep vs shallow copy.

virtual osg::Texture2D::~Texture2D (    )  [protected, virtual]

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Member Function Documentation

virtual void osg::Texture2D::apply (  State &    state )  const [virtual]

On first apply (unless already compiled), create the minmapped texture and bind it, subsequent apply will simple bind to texture. Implements osg::Texture.

virtual int osg::Texture2D::compare (  const StateAttribute &    rhs )  const [virtual]

return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs. Implements osg::StateAttribute.

virtual void osg::Texture2D::computeInternalFormat (    )  const [protected, virtual]

Implements osg::Texture.

void osg::Texture2D::copyTexImage2D (  State &    state, int    x, int    y, int    width, int    height )

Copy pixels into a 2D texture image.As per glCopyTexImage2D. Creates an OpenGL texture object from the current OpenGL background framebuffer contents at pos x, y with width width and height height. width and height must be a power of two.

void osg::Texture2D::copyTexSubImage2D (  State &    state, int    xoffset, int    yoffset, int    x, int    y, int    width, int    height )

Copy a two-dimensional texture subimage. As per glCopyTexSubImage2D. Updates portion of an existing OpenGL texture object from the current OpenGL background framebuffer contents at pos x, y with width width and height height. width and height must be a power of two, and writing into the texture with offset xoffset and yoffset.

virtual void osg::Texture2D::getAssociatedModes (  std::vector< GLMode > &    modes )  const [inline, virtual]

return the modes associated with this StateSet Reimplemented from osg::StateAttribute.

const Image* osg::Texture2D::getImage (    )  const [inline]

Get the const texture image.

Image* osg::Texture2D::getImage (    )  [inline]

Get the texture image.

unsigned int osg::Texture2D::getNumMipmapLevels (    )  const [inline]

Get the number of mip map levels the the texture has been created with.

const SubloadCallback* osg::Texture2D::getSubloadCallback (    )  const [inline]

SubloadCallback* osg::Texture2D::getSubloadCallback (    )  [inline]

void osg::Texture2D::getTextureSize (  int &    width, int &    height )  const [inline]

Get the texture subload width.

osg::Texture2D::META_StateAttribute (  osg   , Texture2D   , TEXTURE    )

void osg::Texture2D::setImage (  Image *    image )

Set the texture image.

void osg::Texture2D::setNumMipmapLevels (  unsigned int    num )  const [inline]

Set the number of mip map levels the the texture has been created with, should only be called within an osg::Texuture::apply() and custom OpenGL texture load.

void osg::Texture2D::setSubloadCallback (  SubloadCallback *    cb )  [inline]

void osg::Texture2D::setTextureSize (  const int    width, const int    height )  const [inline]

Set the texture width and height. If width or height are zero then the repsective size value is calculated from the source image sizes.

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Member Data Documentation

ref_ptr<Image> osg::Texture2D::_image [protected]

GLsizei osg::Texture2D::_numMimpmapLevels [protected]

ref_ptr<SubloadCallback> osg::Texture2D::_subloadCallback [protected]

GLsizei osg::Texture2D::_textureHeight [protected]

GLsizei osg::Texture2D::_textureWidth [protected]

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

• Texture2D

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