Image Management API

Load and store png images with easy interface. More...

Functions
unsigned char *	GfImgReadPng (const char *filename, int *widthp, int *heightp, float screen_gamma)
	Load an image from disk to a buffer in RGBA mode.
int	GfImgWritePng (unsigned char *img, const char *filename, int width, int height)
	Write a buffer to a png image on disk.
int	GfImgWritePngNoGamma (unsigned char *img, const char *filename, int width, int height)
	Write a framebuffer capture to a png image on disk without gamma metadata.
void	GfImgFreeTex (GLuint tex)
	Free the texture.
GLuint	GfImgReadTex (char *filename)
	Read a png image into a texture.

Detailed Description

Load and store png images with easy interface.

Function Documentation

GfImgFreeTex()

void GfImgFreeTex

(

GLuint

tex

)

Free the texture.

Parameters

tex	texture to free

Definition at line 302 of file img.cpp.

GfImgReadPng()

unsigned char * GfImgReadPng	(	const char *	filename,
		int *	widthp,
		int *	heightp,
		float	screen_gamma )

Load an image from disk to a buffer in RGBA mode.

Parameters

filename	name of the image to load
widthp	width of the read image
heightp	height of the read image
screen_gamma	gamma correction value

Returns

Pointer on the buffer containing the image
NULL Error

Definition at line 53 of file img.cpp.

GfImgReadTex()

GLuint GfImgReadTex

(

char *

filename

)

Read a png image into a texture.

Parameters

filename

file name of the image

Returns

None.

Definition at line 315 of file img.cpp.

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GfImgWritePng()

int GfImgWritePng	(	unsigned char *	img,
		const char *	filename,
		int	width,
		int	height )

Write a buffer to a png image on disk.

Parameters

img	image data (RGB)
filename	filename of the png file
width	width of the image
height	height of the image

Returns

0 Ok
-1 Error

Definition at line 277 of file img.cpp.

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GfImgWritePngNoGamma()

int GfImgWritePngNoGamma	(	unsigned char *	img,
		const char *	filename,
		int	width,
		int	height )

Write a framebuffer capture to a png image on disk without gamma metadata.

Parameters

img	image data (RGB)
filename	filename of the png file
width	width of the image
height	height of the image

Returns

0 Ok
-1 Error

Definition at line 292 of file img.cpp.

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