exoquant.c File Reference

#include "exoquant.h"
#include <malloc.h>
#include <math.h>
#include <stdlib.h>
#include <stdio.h>

Macros
#define	NULL   (0)
#define	SCALE_R   1.0f
#define	SCALE_G   1.2f
#define	SCALE_B   0.8f
#define	SCALE_A   1.0f

Functions
exq_data *	exq_init ()
void	exq_no_transparency (exq_data *pExq)
void	exq_free (exq_data *pExq)
static unsigned int	exq_make_hash (unsigned int rgba)
void	exq_feed (exq_data *pExq, unsigned char *pData, int nPixels)
void	exq_quantize (exq_data *pExq, int nColors)
void	exq_quantize_hq (exq_data *pExq, int nColors)
void	exq_quantize_ex (exq_data *pExq, int nColors, int hq)
exq_float	exq_get_mean_error (exq_data *pExq)
void	exq_get_palette (exq_data *pExq, unsigned char *pPal, int nColors)
void	exq_set_palette (exq_data *pExq, unsigned char *pPal, int nColors)
void	exq_sum_node (exq_node *pNode)
void	exq_optimize_palette (exq_data *pExq, int iter)
void	exq_map_image (exq_data *pExq, int nPixels, unsigned char *pIn, unsigned char *pOut)
void	exq_map_image_ordered (exq_data *pExq, int width, int height, unsigned char *pIn, unsigned char *pOut)
void	exq_map_image_random (exq_data *pExq, int nPixels, unsigned char *pIn, unsigned char *pOut)
void	exq_map_image_dither (exq_data *pExq, int width, int height, unsigned char *pIn, unsigned char *pOut, int ordered)
exq_histogram *	exq_find_histogram (exq_data *pExq, unsigned char *pCol)
unsigned char	exq_find_nearest_color (exq_data *pExq, exq_color *pColor)
void	exq_sort (exq_histogram **ppHist, exq_float(*sortfunc)(const exq_histogram *pHist))
exq_float	exq_sort_by_r (const exq_histogram *pHist)
exq_float	exq_sort_by_g (const exq_histogram *pHist)
exq_float	exq_sort_by_b (const exq_histogram *pHist)
exq_float	exq_sort_by_a (const exq_histogram *pHist)
exq_float	exq_sort_by_dir (const exq_histogram *pHist)

Variables
exq_color	exq_sort_dir

Macro Definition Documentation

NULL

#define NULL   (0)

SCALE_A

#define SCALE_A   1.0f

SCALE_B

#define SCALE_B   0.8f

SCALE_G

#define SCALE_G   1.2f

SCALE_R

#define SCALE_R   1.0f

Function Documentation

exq_feed()

void exq_feed	(	exq_data *	pExq,
		unsigned char *	pData,
		int	nPixels
	)

exq_find_histogram()

exq_histogram* exq_find_histogram	(	exq_data *	pExq,
		unsigned char *	pCol
	)

exq_find_nearest_color()

unsigned char exq_find_nearest_color	(	exq_data *	pExq,
		exq_color *	pColor
	)

exq_free()

void exq_free

(

exq_data *

pExq

)

exq_get_mean_error()

exq_float exq_get_mean_error

(

exq_data *

pExq

)

exq_get_palette()

void exq_get_palette	(	exq_data *	pExq,
		unsigned char *	pPal,
		int	nColors
	)

exq_init()

exq_data* exq_init

(

)

exq_make_hash()

static unsigned int exq_make_hash ( unsigned int  rgba )

static

exq_map_image()

void exq_map_image	(	exq_data *	pExq,
		int	nPixels,
		unsigned char *	pIn,
		unsigned char *	pOut
	)

exq_map_image_dither()

void exq_map_image_dither	(	exq_data *	pExq,
		int	width,
		int	height,
		unsigned char *	pIn,
		unsigned char *	pOut,
		int	ordered
	)

exq_map_image_ordered()

void exq_map_image_ordered	(	exq_data *	pExq,
		int	width,
		int	height,
		unsigned char *	pIn,
		unsigned char *	pOut
	)

exq_map_image_random()

void exq_map_image_random	(	exq_data *	pExq,
		int	nPixels,
		unsigned char *	pIn,
		unsigned char *	pOut
	)

exq_no_transparency()

void exq_no_transparency

(

exq_data *

pExq

)

exq_optimize_palette()

void exq_optimize_palette	(	exq_data *	pExq,
		int	iter
	)

exq_quantize()

void exq_quantize	(	exq_data *	pExq,
		int	nColors
	)

exq_quantize_ex()

void exq_quantize_ex	(	exq_data *	pExq,
		int	nColors,
		int	hq
	)

exq_quantize_hq()

void exq_quantize_hq	(	exq_data *	pExq,
		int	nColors
	)

exq_set_palette()

void exq_set_palette	(	exq_data *	pExq,
		unsigned char *	pPal,
		int	nColors
	)

exq_sort()

void exq_sort	(	exq_histogram **	ppHist,
		exq_float(*)(const exq_histogram *pHist)	sortfunc
	)

exq_sort_by_a()

exq_float exq_sort_by_a

(

const exq_histogram *

pHist

)

exq_sort_by_b()

exq_float exq_sort_by_b

(

const exq_histogram *

pHist

)

exq_sort_by_dir()

exq_float exq_sort_by_dir

(

const exq_histogram *

pHist

)

exq_sort_by_g()

exq_float exq_sort_by_g

(

const exq_histogram *

pHist

)

exq_sort_by_r()

exq_float exq_sort_by_r

(

const exq_histogram *

pHist

)

exq_sum_node()

void exq_sum_node

(

exq_node *

pNode

)

Variable Documentation

exq_sort_dir

exq_color exq_sort_dir