colour.c File Reference

Predefined colours for use with Naev. More...

#include "colour.h"
#include "log.h"
#include "nmath.h"
#include "nstring.h"

Go to the source code of this file.

Functions
	__attribute__ ((const))
void	col_linearToGamma (glColour *c)
void	col_gammaToLinear (glColour *c)
void	col_hsv2rgb (glColour *c, float h, float s, float v)
	Changes colour space from HSV to RGB. More...
void	col_rgb2hsv (float *H, float *S, float *V, float R, float G, float B)
	Changes colour space from RGB to HSV. More...
void	col_blend (glColour *blend, const glColour *fg, const glColour *bg, float alpha)
	Blends two colours. More...

Detailed Description

Predefined colours for use with Naev.

Definition in file colour.c.

Function Documentation

__attribute__()

__attribute__

(

(const)

)

Definition at line 25 of file colour.c.

col_blend()

void col_blend	(	glColour *	blend,
		const glColour *	fg,
		const glColour *	bg,
		float	alpha
	)

Blends two colours.

Parameters

[out]	blend	Stores blended output colour.
	fg	Foreground colour.
	bg	Background colour.
	alpha	Alpha value to use (0 to 1).

Definition at line 192 of file colour.c.

col_gammaToLinear()

void col_gammaToLinear

(

glColour *

c

)

Definition at line 48 of file colour.c.

col_hsv2rgb()

void col_hsv2rgb	(	glColour *	c,
		float	h,
		float	s,
		float	v
	)

Changes colour space from HSV to RGB.

All values go from 0 to 1, except H which is 0-360.

Parameters

[out]	c	Colour to be converted to from hsv.
	h	Hue to convert.
	s	Saturation to convert.
	v	Value to convert.

Definition at line 65 of file colour.c.

col_linearToGamma()

void col_linearToGamma

(

glColour *

c

)

Definition at line 41 of file colour.c.

col_rgb2hsv()

void col_rgb2hsv	(	float *	H,
		float *	S,
		float *	V,
		float	R,
		float	G,
		float	B
	)

Changes colour space from RGB to HSV.

All values go from 0 to 1, except H which is 0-360.

Taken from (GIFT) GNU Image Finding Tool.

Parameters

[out]	H	Stores Hue.
[out]	S	Stores Saturation.
[out]	V	Stores Value.
	R	Red to convert.
	G	Green to convert.
	B	Blue to convert.

Definition at line 111 of file colour.c.