osg::Texture1D Class Reference

Inheritance diagram for osg::Texture1D:

osg::Texture osg::StateAttribute osg::Object osg::Referenced List of all members.

Public Member Functions

 Texture1D ()
 Texture1D (const Texture1D &text, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
 META_StateAttribute (osg, Texture1D, TEXTURE)
virtual int compare (const StateAttribute &rhs) const
virtual GLenum getTextureTarget () const
void setImage (Image *image)
ImagegetImage ()
const ImagegetImage () const
unsigned int & getModifiedCount (unsigned int contextID) const
virtual void setImage (unsigned int, Image *image)
virtual ImagegetImage (unsigned int)
virtual const ImagegetImage (unsigned int) const
virtual unsigned int getNumImages () const
void setTextureWidth (int width) const
virtual int getTextureWidth () const
virtual int getTextureHeight () const
virtual int getTextureDepth () const
void setSubloadCallback (SubloadCallback *cb)
SubloadCallbackgetSubloadCallback ()
const SubloadCallbackgetSubloadCallback () const
void setNumMipmapLevels (unsigned int num) const
unsigned int getNumMipmapLevels () const
void copyTexImage1D (State &state, int x, int y, int width)
void copyTexSubImage1D (State &state, int xoffset, int x, int y, int width)
virtual void apply (State &state) const

Protected Types

typedef buffered_value< unsigned
int > 
ImageModifiedCount

Protected Member Functions

virtual ~Texture1D ()
virtual void computeInternalFormat () const
void applyTexImage1D (GLenum target, Image *image, State &state, GLsizei &width, GLsizei &numMipmapLevels) const

Protected Attributes

ref_ptr< Image_image
GLsizei _textureWidth
GLsizei _numMipmapLevels
ref_ptr< SubloadCallback_subloadCallback
ImageModifiedCount _modifiedCount

Classes

class  SubloadCallback

Detailed Description

Encapsulates OpenGl 1D texture functionality. Doesn't support cube maps, so ignore face parameters.


Member Typedef Documentation

typedef buffered_value<unsigned int> osg::Texture1D::ImageModifiedCount [protected]
 


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]
 


Member Function Documentation

virtual void osg::Texture1D::apply State state  )  const [virtual]
 

Bind the texture object. If the texture object hasn't already been compiled, create the texture mipmap levels.

Implements osg::Texture.

void osg::Texture1D::applyTexImage1D GLenum  target,
Image image,
State state,
GLsizei &  width,
GLsizei &  numMipmapLevels
const [protected]
 

Helper method. Createa the texture without setting or using a 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
 

Copies pixels into a 1D texture image, as per glCopyTexImage1D. Creates an OpenGL texture object from the current OpenGL background framebuffer contents at position 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
 

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

virtual const Image* osg::Texture1D::getImage unsigned int   )  const [inline, virtual]
 

Gets the const texture image, ignoring face.

Implements osg::Texture.

virtual Image* osg::Texture1D::getImage unsigned int   )  [inline, virtual]
 

Gets the texture image, ignoring face.

Implements osg::Texture.

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

Gets the const texture image.

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

Gets the texture image.

unsigned int& osg::Texture1D::getModifiedCount unsigned int  contextID  )  const [inline]
 

virtual unsigned int osg::Texture1D::getNumImages  )  const [inline, virtual]
 

Gets the number of images that can be assigned to the Texture.

Implements osg::Texture.

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

Gets the number of mipmap levels created.

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

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

virtual int osg::Texture1D::getTextureDepth  )  const [inline, virtual]
 

Reimplemented from osg::Texture.

virtual int osg::Texture1D::getTextureHeight  )  const [inline, virtual]
 

Reimplemented from osg::Texture.

virtual GLenum osg::Texture1D::getTextureTarget  )  const [inline, virtual]
 

Implements osg::Texture.

virtual int osg::Texture1D::getTextureWidth  )  const [inline, virtual]
 

Gets the texture width.

Reimplemented from osg::Texture.

osg::Texture1D::META_StateAttribute osg  ,
Texture1D  ,
TEXTURE 
 

virtual void osg::Texture1D::setImage unsigned int  ,
Image image
[inline, virtual]
 

Sets the texture image, ignoring face.

Implements osg::Texture.

void osg::Texture1D::setImage Image image  ) 
 

Sets the texture image.

void osg::Texture1D::setNumMipmapLevels unsigned int  num  )  const [inline]
 

Helper function. Sets the number of mipmap levels created for this texture. Should only be called within an osg::Texuture::apply(), or during a custom OpenGL texture load.

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

void osg::Texture1D::setTextureWidth int  width  )  const [inline]
 

Sets the texture width. If width is zero, calculate the value from the source image width.


Member Data Documentation

ref_ptr<Image> osg::Texture1D::_image [mutable, protected]
 

It's not ideal that _image is mutable, but it's required since Image::ensureDimensionsArePowerOfTwo() can only be called in a valid OpenGL context, and therefore within Texture::apply, which is const.

ImageModifiedCount osg::Texture1D::_modifiedCount [mutable, protected]
 

GLsizei osg::Texture1D::_numMipmapLevels [mutable, protected]
 

Number of mipmap levels created.

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

GLsizei osg::Texture1D::_textureWidth [mutable, protected]
 

Subloaded images can have different texture and image sizes.


The documentation for this class was generated from the following file:
Generated on Fri Oct 13 17:03:09 2006 for openscenegraph by  doxygen 1.4.6