#include <stdio.h>
#include "PixelBuffer.h"

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Macros
#define	MAX_GIFCOLORS 256

#define	PPM_GETR(p) (((p)&0x3ff00000) >> 20)

#define	PPM_GETG(p) (((p)&0xffc00) >> 10)

#define	PPM_GETB(p) ((p)&0x3ff)

#define	PPM_EQUAL(p, q) ((p) == (q))

#define	PPM_ASSIGN(p, red, grn, blu) (p) = ((pixel)(red) << 20) \| ((pixel)(grn) << 10) \| (pixel)(blu)

#define	PPM_LUMIN(p) (0.299 * PPM_GETR(p) + 0.587 * PPM_GETG(p) + 0.114 * PPM_GETB(p))

#define	PPM_DEPTH(newp, p, oldmaxval, newmaxval)

Typedefs
typedef unsigned int	pixval

typedef unsigned long	pixel

typedef int	code_int

typedef long int	count_int

Functions
void	create_gif (FILE outfile, PixelBuffer buffer, int dither, int sort, int interlace, int transparency)

Macro Definition Documentation

◆ MAX_GIFCOLORS

#define MAX_GIFCOLORS 256

Definition at line 13 of file gl2gif.h.

◆ PPM_ASSIGN

#define PPM_ASSIGN	(	p,
		red,
		grn,
		blu
	)	(p) = ((pixel)(red) << 20) \| ((pixel)(grn) << 10) \| (pixel)(blu)

Definition at line 29 of file gl2gif.h.

◆ PPM_DEPTH

#define PPM_DEPTH	(	newp,
		p,
		oldmaxval,
		newmaxval
	)

Value:

  PPM_ASSIGN((newp),                                                           \
             ((int)PPM_GETR(p) * (newmaxval) + (oldmaxval) / 2) / (oldmaxval), \
             ((int)PPM_GETG(p) * (newmaxval) + (oldmaxval) / 2) / (oldmaxval), \
             ((int)PPM_GETB(p) * (newmaxval) + (oldmaxval) / 2) / (oldmaxval))

Definition at line 35 of file gl2gif.h.

◆ PPM_EQUAL

#define PPM_EQUAL	(	p,
		q
	)	((p) == (q))

Definition at line 27 of file gl2gif.h.

◆ PPM_GETB

#define PPM_GETB ( p ) ((p)&0x3ff)

Definition at line 26 of file gl2gif.h.

◆ PPM_GETG

#define PPM_GETG ( p ) (((p)&0xffc00) >> 10)

Definition at line 25 of file gl2gif.h.

◆ PPM_GETR

#define PPM_GETR ( p ) (((p)&0x3ff00000) >> 20)

Definition at line 24 of file gl2gif.h.

◆ PPM_LUMIN

#define PPM_LUMIN ( p ) (0.299 * PPM_GETR(p) + 0.587 * PPM_GETG(p) + 0.114 * PPM_GETB(p))

Definition at line 32 of file gl2gif.h.

Typedef Documentation

◆ code_int

typedef int code_int

Definition at line 18 of file gl2gif.h.

◆ count_int

typedef long int count_int

Definition at line 19 of file gl2gif.h.

◆ pixel

typedef unsigned long pixel

Definition at line 17 of file gl2gif.h.

◆ pixval

typedef unsigned int pixval

Definition at line 16 of file gl2gif.h.

Function Documentation

◆ create_gif()

void create_gif	(	FILE *	outfile,
		PixelBuffer *	buffer,
		int	dither,
		int	sort,
		int	interlace,
		int	transparency
	)

Definition at line 1110 of file gl2gif.cpp.

Referenced by CreateOutputFile().

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Macros

Typedefs

Functions