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osg::Texture1D Class Reference

Texture state class which encapsulates OpenGl 1D texture functionality. More...

Inheritance diagram for osg::Texture1D:

[legend]List of all members.

Public Methods
	Texture1D ()
	Texture1D (const Texture1D &text, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
	Copy constructor using CopyOp to manage deep vs shallow copy.
	META_StateAttribute (osg, Texture1D, 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
	Set the texture width and height.
void	getTextureSize (int &width) 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	copyTexImage1D (State &state, int x, int y, int width)
	Copy pixels into a 1D texture image.As per glCopyTexImage1D.
void	copyTexSubImage1D (State &state, int xoffset, int x, int y, int width)
	Copy a one-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	~Texture1D ()
virtual void	computeInternalFormat () const
void	applyTexImage1D (GLenum target, Image *image, State &state, GLsizei &width, GLsizei &numMimpmapLevels) const
	Helper method which does the creation of the texture itself, and does not set or use texture binding.
Protected Attributes
ref_ptr< Image >	_image
GLsizei	_textureWidth
GLsizei	_numMimpmapLevels
ref_ptr< SubloadCallback >	_subloadCallback

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Detailed Description

Texture state class which encapsulates OpenGl 1D texture functionality.

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Constructor & Destructor Documentation

osg::Texture1D::Texture1D (    )

osg::Texture1D::Texture1D (  const Texture1D &    text, const CopyOp &    copyop = CopyOp::SHALLOW_COPY )

Copy constructor using CopyOp to manage deep vs shallow copy.

virtual osg::Texture1D::~Texture1D (    )  [protected, virtual]

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Member Function Documentation

virtual void osg::Texture1D::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.

void osg::Texture1D::applyTexImage1D (  GLenum    target, Image *    image, State &    state, GLsizei &    width, GLsizei &    numMimpmapLevels )  const [protected]

Helper method which does the creation of the texture itself, and does not set or use texture binding.

virtual int osg::Texture1D::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::Texture1D::computeInternalFormat (    )  const [protected, virtual]

Implements osg::Texture.

void osg::Texture1D::copyTexImage1D (  State &    state, int    x, int    y, int    width )

Copy pixels into a 1D texture image.As per glCopyTexImage1D. Creates an OpenGL texture object from the current OpenGL background framebuffer contents at pos x, y with width width. width must be a power of two.

void osg::Texture1D::copyTexSubImage1D (  State &    state, int    xoffset, int    x, int    y, int    width )

Copy a one-dimensional texture subimage. As per glCopyTexSubImage1D. Updates portion of an existing OpenGL texture object from the current OpenGL background framebuffer contents at pos x, y with width width.

virtual void osg::Texture1D::getAssociatedModes (  std::vector< GLMode > &    modes )  const [inline, virtual]

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

const Image* osg::Texture1D::getImage (    )  const [inline]

Get the const texture image.

Image* osg::Texture1D::getImage (    )  [inline]

Get the texture image.

unsigned int osg::Texture1D::getNumMipmapLevels (    )  const [inline]

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

const SubloadCallback* osg::Texture1D::getSubloadCallback (    )  const [inline]

SubloadCallback* osg::Texture1D::getSubloadCallback (    )  [inline]

void osg::Texture1D::getTextureSize (  int &    width )  const [inline]

Get the texture subload width.

osg::Texture1D::META_StateAttribute (  osg   , Texture1D   , TEXTURE    )

void osg::Texture1D::setImage (  Image *    image )

Set the texture image.

void osg::Texture1D::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::Texture1D::setSubloadCallback (  SubloadCallback *    cb )  [inline]

void osg::Texture1D::setTextureSize (  const int    width )  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::Texture1D::_image [protected]

GLsizei osg::Texture1D::_numMimpmapLevels [protected]

ref_ptr<SubloadCallback> osg::Texture1D::_subloadCallback [protected]

GLsizei osg::Texture1D::_textureWidth [protected]

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

• Texture1D

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