OpenGLTexture Class Reference

Creates an openGL texture from an Image. More...

#include <juce_OpenGLTexture.h>

Public Member Functions
	OpenGLTexture ()
	~OpenGLTexture ()
void	loadImage (const Image &image)
	Creates a texture from the given image.
void	loadARGB (const PixelARGB *pixels, int width, int height)
	Creates a texture from a raw array of pixels.
void	loadARGBFlipped (const PixelARGB *pixels, int width, int height)
	Creates a texture from a raw array of pixels.
void	loadAlpha (const uint8 *pixels, int width, int height)
	Creates an alpha-channel texture from an array of alpha values.
void	release ()
	Frees the texture, if there is one.
void	bind () const
	Binds the texture to the currently active openGL context.
void	unbind () const
	Unbinds the texture to the currently active openGL context.
GLuint	getTextureID () const noexcept
	Returns the GL texture ID number.
int	getWidth () const noexcept
int	getHeight () const noexcept

Static Public Member Functions
static bool	isValidSize (int width, int height)
	Returns true if a texture can be created with the given size.

Detailed Description

Creates an openGL texture from an Image.

Constructor & Destructor Documentation

OpenGLTexture()

OpenGLTexture::OpenGLTexture

(

)

~OpenGLTexture()

OpenGLTexture::~OpenGLTexture

(

)

Member Function Documentation

loadImage()

void OpenGLTexture::loadImage

(

const Image &

image

)

Creates a texture from the given image.

Note that if the image's dimensions aren't a power-of-two, the texture may be created with a larger size.

The image will be arranged so that its top-left corner is at texture coordinate (0, 1).

loadARGB()

void OpenGLTexture::loadARGB	(	const PixelARGB *	pixels,
		int	width,
		int	height )

Creates a texture from a raw array of pixels.

If width and height are not powers-of-two, the texture will be created with a larger size, and only the subsection (0, 0, width, height) will be initialised. The data is sent directly to the OpenGL driver without being flipped vertically, so the first pixel will be mapped onto texture coordinate (0, 0).

loadARGBFlipped()

void OpenGLTexture::loadARGBFlipped	(	const PixelARGB *	pixels,
		int	width,
		int	height )

Creates a texture from a raw array of pixels.

This is like loadARGB, but will vertically flip the data so that the first pixel ends up at texture coordinate (0, 1), and if the width and height are not powers-of-two, it will compensate by using a larger texture size.

loadAlpha()

void OpenGLTexture::loadAlpha	(	const uint8 *	pixels,
		int	width,
		int	height )

Creates an alpha-channel texture from an array of alpha values.

If width and height are not powers-of-two, the texture will be created with a larger size, and only the subsection (0, 0, width, height) will be initialised. The data is sent directly to the OpenGL driver without being flipped vertically, so the first pixel will be mapped onto texture coordinate (0, 0).

release()

void OpenGLTexture::release

(

)

Frees the texture, if there is one.

bind()

void OpenGLTexture::bind

(

)

const

Binds the texture to the currently active openGL context.

unbind()

void OpenGLTexture::unbind

(

)

const

Unbinds the texture to the currently active openGL context.

getTextureID()

GLuint OpenGLTexture::getTextureID ( ) const

noexcept

Returns the GL texture ID number.

getWidth()

int OpenGLTexture::getWidth ( ) const

noexcept

getHeight()

int OpenGLTexture::getHeight ( ) const

noexcept

isValidSize()

static bool OpenGLTexture::isValidSize ( int width, int height )

static

Returns true if a texture can be created with the given size.

Some systems may require that the sizes are powers-of-two.

---

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

• juce_OpenGLTexture.h