Classes | Public Member Functions | Protected Types | Protected Member Functions | Protected Attributes

osg::TextureRectangle Class Reference

Inheritance diagram for osg::TextureRectangle:
osg::Texture osg::StateAttribute osg::Object osg::Referenced

List of all members.

Classes

class  SubloadCallback

Public Member Functions

 TextureRectangle ()
 TextureRectangle (Image *image)
 TextureRectangle (const TextureRectangle &text, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
 META_StateAttribute (osg, TextureRectangle, TEXTURE)
virtual int compare (const StateAttribute &rhs) const
virtual GLenum getTextureTarget () const
void setImage (Image *image)
Image * getImage ()
const Image * getImage () const
unsigned int & getModifiedCount (unsigned int contextID) const
virtual void setImage (unsigned int, Image *image)
virtual Image * getImage (unsigned int)
virtual const Image * getImage (unsigned int) const
virtual unsigned int getNumImages () const
void setTextureSize (int width, int height) const
void setTextureWidth (int width)
void setTextureHeight (int height)
virtual int getTextureWidth () const
virtual int getTextureHeight () const
virtual int getTextureDepth () const
void setSubloadCallback (SubloadCallback *cb)
SubloadCallback * getSubloadCallback ()
const SubloadCallback * getSubloadCallback () const
void copyTexImage2D (State &state, int x, int y, int width, int height)
void copyTexSubImage2D (State &state, int xoffset, int yoffset, int x, int y, int width, int height)
virtual void apply (State &state) const

Protected Types

typedef buffered_value
< unsigned int > 		ImageModifiedCount

Protected Member Functions

virtual ~TextureRectangle ()
virtual void computeInternalFormat () const
void allocateMipmap (State &state) const
void applyTexParameters (GLenum target, State &state) const
void applyTexImage_load (GLenum target, Image *image, State &state, GLsizei &inwidth, GLsizei &inheight) const
void applyTexImage_subload (GLenum target, Image *image, State &state, GLsizei &inwidth, GLsizei &inheight, GLint &inInternalFormat) const

Protected Attributes

ref_ptr< Image > _image
GLsizei _textureWidth
GLsizei _textureHeight
ref_ptr< SubloadCallback > _subloadCallback
ImageModifiedCount _modifiedCount

Detailed Description

Texture state class which encapsulates OpenGL texture functionality.

Member Typedef Documentation

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

Constructor & Destructor Documentation

osg::TextureRectangle::TextureRectangle (  ) 
osg::TextureRectangle::TextureRectangle ( Image *  image  ) 
osg::TextureRectangle::TextureRectangle ( const TextureRectangle &  text,
const CopyOp &  copyop = CopyOp::SHALLOW_COPY 
)

Copy constructor using CopyOp to manage deep vs shallow copy.

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

Member Function Documentation

void osg::TextureRectangle::allocateMipmap ( State &  state  )  const [protected, virtual]

Allocate mipmap levels of the texture by subsequent calling of glTexImage* function.

Implements osg::Texture.

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

On first apply (unless already compiled), create and bind the texture, subsequent apply will simply bind to texture.

Implements osg::Texture.

void osg::TextureRectangle::applyTexImage_load ( GLenum  target,
Image *  image,
State &  state,
GLsizei &  inwidth,
GLsizei &  inheight 
) const [protected]
void osg::TextureRectangle::applyTexImage_subload ( GLenum  target,
Image *  image,
State &  state,
GLsizei &  inwidth,
GLsizei &  inheight,
GLint &  inInternalFormat 
) const [protected]
void osg::TextureRectangle::applyTexParameters ( GLenum  target,
State &  state 
) const [protected]

Helper method. Sets texture parameters.

Reimplemented from osg::Texture.

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

Implements osg::Texture.

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

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

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

Copies a two-dimensional texture subimage, as per glCopyTexSubImage2D. Updates a portion of an existing OpenGL texture object from the current OpenGL background framebuffer contents at position x, y with width width and height height. Loads framebuffer data into the texture using offsets xoffset and yoffset. width and height must be powers of two.

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

Get the texture image, ignoring face value as there is only one image.

Implements osg::Texture.

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

Get the const texture image, ignoring face value as there is only one image.

Implements osg::Texture.

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

Get the texture image.

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

Get the const texture image.

unsigned int& osg::TextureRectangle::getModifiedCount ( unsigned int  contextID  )  const [inline]
virtual unsigned int osg::TextureRectangle::getNumImages (  )  const [inline, virtual]

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

Implements osg::Texture.

const SubloadCallback* osg::TextureRectangle::getSubloadCallback (  )  const [inline]
SubloadCallback* osg::TextureRectangle::getSubloadCallback (  )  [inline]
virtual int osg::TextureRectangle::getTextureDepth (  )  const [inline, virtual]

Reimplemented from osg::Texture.

virtual int osg::TextureRectangle::getTextureHeight (  )  const [inline, virtual]

Reimplemented from osg::Texture.

virtual GLenum osg::TextureRectangle::getTextureTarget (  )  const [inline, virtual]

Implements osg::Texture.

virtual int osg::TextureRectangle::getTextureWidth (  )  const [inline, virtual]

Reimplemented from osg::Texture.

osg::TextureRectangle::META_StateAttribute ( osg  ,
TextureRectangle  ,
TEXTURE   
)
virtual void osg::TextureRectangle::setImage ( unsigned int  ,
Image *  image 
) [inline, virtual]

Set the texture image, ignoring face value as there is only one image.

Implements osg::Texture.

References setImage().

Referenced by setImage().

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

Set the texture image.

void osg::TextureRectangle::setSubloadCallback ( SubloadCallback *  cb  )  [inline]
void osg::TextureRectangle::setTextureHeight ( int  height  )  [inline]
void osg::TextureRectangle::setTextureSize ( int  width,
int  height 
) const [inline]

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

void osg::TextureRectangle::setTextureWidth ( int  width  )  [inline]

Member Data Documentation

ref_ptr<Image> osg::TextureRectangle::_image [protected]
ImageModifiedCount osg::TextureRectangle::_modifiedCount [mutable, protected]
ref_ptr<SubloadCallback> osg::TextureRectangle::_subloadCallback [protected]
GLsizei osg::TextureRectangle::_textureHeight [mutable, protected]
GLsizei osg::TextureRectangle::_textureWidth [mutable, protected]
The documentation for this class was generated from the following file:
Generated on Sun Jul 25 2010 17:48:38 for openscenegraph by  doxygen 1.7.1