namespace yav class Texture1D : public Pointed<Texture1D>

a class defining a 2D texture according to OpenGL

Inheritance:

Public Classes

enum	GenericTexture the generic texture that can be created directly
enum	Format the two different ways of coding each pixel of a texture
enum	TextureInterpolation the two different types of texture interpolation
enum	TextureExtrapolation the two different types of texture interpolation
enum	TextureMode the four different types of texture mapping

Public Methods

void	drawGenericTexture (GenericTexture type) draw a texture of a given type
void	updateTexture () const update the OpenGL texture based on the new texture buffer
unsigned int	getNbColumns () const return the nb of texture columns
unsigned int	getNbRealColumns () const return the nb of meaningful texture columns
void	getColor (const unsigned int col, unsigned char *color) const get the RGBA color of a texture pixel
GLuint	getId () const return the texture ID
void	enableTextureCoordinatesGeneration () const enable texture coordinates generation
void	disableTextureCoordinatesGeneration () const disable texture coordinates generation
void	enableTexture (TextureMode m) use this texture
void	disableTexture (TextureMode m) const stop using this texture
void	interpolateTexture (TextureInterpolation i) const set the type of texture interpolation
void	extrapolateTexture (TextureExtrapolation i) const set the type of texture extrapolation
void	applyTextureMode (TextureMode i, const double s[4], const double t[4]) const set the type of texture interpolation

Public

	constructors Texture1D (unsigned int *b, const unsigned int nc, Format f=TEXTURE_RGBA) build a texture from a buffer Texture1D (GenericTexture type, const unsigned int size) build a texture of a given type Texture1D (char *filename) build a texture from a GIF image file
	destructor virtual ~Texture1D () delete a 2D Texture

Protected Fields

bool	binded if the texture has been binded
GLuint	id the texture ID
void*	buffer texture buffer
unsigned int	ncols number of columns: must be a power of two
unsigned int	nbRealColumns the number of columns that are really meaningful
Format	format pixel format
bool	updateDisplayList if the display list should be update

Protected Methods

void	enlargeTexture (const void *b, const unsigned int nc) enlarge a given texture such that its size is a power of 2 and store it in the texture buffer
void	createTexture () create the display list associated with the texture
void	init () initialize variables

enum GenericTexture

the generic texture that can be created directly

enum Format

the two different ways of coding each pixel of a texture

enum TextureInterpolation

the two different types of texture interpolation

enum TextureExtrapolation

the two different types of texture interpolation

enum TextureMode

the four different types of texture mapping

bool binded

if the texture has been binded

GLuint id

the texture ID

void* buffer

texture buffer

unsigned int ncols

number of columns: must be a power of two

unsigned int nbRealColumns

the number of columns that are really meaningful

Format format

pixel format

bool updateDisplayList

if the display list should be update

constructors

Texture1D(unsigned int *b, const unsigned int nc, Format f=TEXTURE_RGBA)

build a texture from a buffer

Parameters:

b - a buffer where each pixel is each coded with RGBA or ABGR
nr - the number of rows (may not be a power of 2)
nc - the number of columns (may not be a power of 2)
f - the format of each pixel

Texture1D(GenericTexture type, const unsigned int size)

build a texture of a given type

Parameters:

the - type of generic texture
size - the number of rows and columns of the texture
exponent - for the gaussian and halo texture controls the spread of the gaussian
radius - for the halo texture controls the radius of the halo (as default it is a quarter of the size )

Texture1D(char *filename)

build a texture from a GIF image file

Parameters:

filename - file name of a GIF file

destructor

virtual ~Texture1D()

delete a 2D Texture

void enlargeTexture(const void *b, const unsigned int nc)

enlarge a given texture such that its size is a power of 2 and store it in the texture buffer

void createTexture()

create the display list associated with the texture

void init()

initialize variables

void drawGenericTexture(GenericTexture type)

draw a texture of a given type

Parameters:

the - type of generic texture
exponent - for the gaussian and halo texture controls the spread of the gaussian
radius - for the halo texture controls the radius of the halo (as default it is a quarter of the size )

void updateTexture() const

update the OpenGL texture based on the new texture buffer

unsigned int getNbColumns() const

return the nb of texture columns

unsigned int getNbRealColumns() const

return the nb of meaningful texture columns

void getColor(const unsigned int col, unsigned char *color) const

get the RGBA color of a texture pixel

Parameters:

row - the row index of a pixel
col - the column index of a pixel
color - the array of Red Green Blue and Alpha value

GLuint getId() const

return the texture ID

void enableTextureCoordinatesGeneration() const

enable texture coordinates generation

void disableTextureCoordinatesGeneration() const

disable texture coordinates generation

void enableTexture(TextureMode m)

use this texture

void disableTexture(TextureMode m) const

stop using this texture

void interpolateTexture(TextureInterpolation i) const

set the type of texture interpolation

void extrapolateTexture(TextureExtrapolation i) const

set the type of texture extrapolation

void applyTextureMode(TextureMode i, const double s[4], const double t[4]) const

set the type of texture interpolation

Direct child classes:

TclTexture1D

alphabetic index hierarchy of classes

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(c)opyright by Malte Zöckler, Roland Wunderling
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