Texture Class Reference

Class representing the a texture. More...

#include <texture.h>

List of all members.

Public Member Functions
	Texture (int _width, int _height, int _bits=32)
void	upload (float4 *data)
void	download (float4 *data)
void	clear (float4 *val=NULL)
float4	reduce (FragmentProgram *prg)
float4	max ()
float4	min ()
float4	avg ()
float4	sum ()
void	show ()

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Detailed Description

Class representing the a texture.

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Constructor & Destructor Documentation

Texture::Texture (  int  _width, int  _height, int  _bits = 32 )

Constructor Parameters: _width  The width of the texture. _height  The height of the texture. _bits  The number of bits per entry, defaults to 32.

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Member Function Documentation

float4 Texture::avg (   )

Calculate the average of the values in the texture. Returns: The 1x1 texture result as a float4.

void Texture::clear (  float4 *  val = NULL  )

Clear the texture. Parameters: val  A pointer to a float4 containing the clear value. If unset, the texture is cleared to 0.0f.

void Texture::download (  float4 *  data  )

Download data from the texture. Parameters: data  A float4 pointer to an array of float4s. The array *must* be the same size as the texture.

float4 Texture::max (   )

Find the maximum value in the texture. Returns: The 1x1 texture result as a float4.

float4 Texture::min (   )

Find the minimum value in the texture. Returns: The 1x1 texture result as a float4.

float4 Texture::reduce (  FragmentProgram *  prg  )

Reduces the texture according to at program. The program must contain two parameters: a texture called texture and a float called I, these will be fed to the program. Parameters: prg  The program to be run on the textures recursively. Returns: The 1x1 texture result as a float4.

void Texture::show (   )

Show the texture on screen for debugging.

float4 Texture::sum (   )

Sum the values in the texture. Returns: The 1x1 texture result as a float4.

void Texture::upload (  float4 *  data  )

Upload data to the texture. Parameters: data  A float4 pointer to an array of float4s. The array *must* be the same size as the texture.

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