/**
 * $Id$
 *
 * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version. The Blender
 * Foundation also sells licenses for use in proprietary software under
 * the Blender License.  See http://www.blender.org/BL/ for information
 * about this.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL/BL DUAL LICENSE BLOCK *****
 */

#ifndef IFF_H
#define IFF_H

#include <sys/types.h>
#include "util.h"

#define IB_rect			(1 << 0)
#define IB_planes		(1 << 1)
#define IB_cmap			(1 << 2)
#define IB_test			(1 << 7)

#define IB_fields		(1 << 11)
#define IB_yuv			(1 << 12)
#define IB_zbuf			(1 << 13)
#define IB_rgba			(1 << 14)

#define AMI	    (1 << 31)
#define Anim	(1 << 29)
#define TGA	    (1 << 28)
#define JPG		(1 << 27)

#define RAWTGA	(TGA | 1)

#define JPG_STD	(JPG | (0 << 8))
#define JPG_VID	(JPG | (1 << 8))
#define JPG_JST	(JPG | (2 << 8))
#define JPG_MAX	(JPG | (3 << 8))
#define JPG_MSK	(0xffffff00)

#define AM_ham	    (0x0800 | AMI)
#define AM_hbrite   (0x0080 | AMI)
#define AM_lace	    (0x0004 | AMI)
#define AM_hires    (0x8000 | AMI)
#define AM_hblace   (AM_hbrite | AM_lace)
#define AM_hilace   (AM_hires | AM_lace)
#define AM_hamlace  (AM_ham | AM_lace)

#define RGB888	1
#define RGB555	2
#define DYUV	3
#define CLUT8	4
#define CLUT7	5
#define CLUT4	6
#define CLUT3	7
#define RL7	8
#define RL3	9
#define MPLTE	10

#define DYUV1	0
#define C233	1
#define YUVX	2
#define HAMX	3
#define TANX	4

#define AN_c233			(Anim | C233)
#define AN_yuvx			(Anim | YUVX)
#define AN_hamx			(Anim | HAMX)
#define AN_tanx			(Anim | TANX)

#define IS_amiga(x)		(x->ftype & AMI)
#define IS_ham(x)		((x->ftype & AM_ham) == AM_ham)
#define IS_hbrite(x)	((x->ftype & AM_hbrite) == AM_hbrite)
#define IS_lace(x)		((x->ftype & AM_lace) == AM_lace)
#define IS_hires(x)		((x->ftype & AM_hires) == AM_hires)
#define IS_hblace(x)	((x->ftype & AM_hblace) == AM_hblace)
#define IS_hilace(x)	((x->ftype & AM_hilace) == AM_hilace)
#define IS_hamlace(x)	((x->ftype & AM_hamlace) == AM_hamlace)

#define IS_anim(x)		(x->ftype & Anim)
#define IS_hamx(x)		(x->ftype == AN_hamx)

#define IS_tga(x)		(x->ftype & TGA)
#define IS_tim(x)		(x->ftype & TIM)

#define IMAGIC 	0732
#define IS_iris(x)		(x->ftype == IMAGIC)

#define IS_jpg(x)		(x->ftype & JPG)
#define IS_stdjpg(x)	((x->ftype & JPG_MSK) == JPG_STD)
#define IS_vidjpg(x)	((x->ftype & JPG_MSK) == JPG_VID)
#define IS_jstjpg(x)	((x->ftype & JPG_MSK) == JPG_JST)
#define IS_maxjpg(x)	((x->ftype & JPG_MSK) == JPG_MAX)

#define AN_INIT an_stringdec = stringdec; an_stringenc = stringenc;

typedef struct ImBuf{
	short	x,y;		/* breedte in pixels, hoogte in scanlines */
	short	skipx;		/* breedte in ints om bij volgende scanline te komen */
	uchar	depth;		/* actieve aantal bits/bitplanes */
	uchar	cbits;		/* aantal active bits in cmap */
	ushort	mincol;
	ushort	maxcol;
	int	type;		/* 0=abgr, 1=bitplanes */
	int	ftype;
	uint	*cmap;		/* int array van kleuren */
	uint	*rect;		/* databuffer */
	uint	**planes;	/* bitplanes */
	uchar	*chardata;	/* voor cdi-compressie */
	int	flags;
	int	mall;		/* wat is er intern gemalloced en mag weer vrijgegeven worden */
	short	xorig, yorig;
	char	name[127];
	char	namenull;
	int	userflags;
	int	*zbuf;
	void	*userdata;
} ImBuf;

extern struct ImBuf *allocImBuf(short,short,uchar,uint,uchar);
extern struct ImBuf *dupImBuf(struct ImBuf *);
extern void freeImBuf(struct ImBuf*);

extern short converttocmap(struct ImBuf* ibuf);

extern short saveiff(struct ImBuf *,char *,int);

extern struct ImBuf *loadiffmem(int *,int);
extern struct ImBuf *loadifffile(int,int);
extern struct ImBuf *loadiffname(char *,int);
extern struct ImBuf *testiffname(char *,int);

extern struct ImBuf *onehalf(struct ImBuf *);
extern struct ImBuf *onethird(struct ImBuf *);
extern struct ImBuf *halflace(struct ImBuf *);
extern struct ImBuf *half_x(struct ImBuf *);
extern struct ImBuf *half_y(struct ImBuf *);
extern struct ImBuf *double_x(struct ImBuf *);
extern struct ImBuf *double_y(struct ImBuf *);
extern struct ImBuf *double_fast_x(struct ImBuf *);
extern struct ImBuf *double_fast_y(struct ImBuf *);

extern int ispic(char *);

extern void floyd(struct ImBuf *, short, short);
extern void dit2(struct ImBuf *, short, short);
extern void dit3(struct ImBuf *, short, short);
extern void dit4(struct ImBuf *, short, short);
extern void dit0(struct ImBuf *, short, short);
extern void (*ditherfunc)(struct ImBuf *, short, short);

extern struct ImBuf *scaleImBuf(struct ImBuf *, short, short);
extern struct ImBuf *scalefastImBuf(struct ImBuf *, short, short);
extern struct ImBuf *scalefieldImBuf(struct ImBuf *, short, short);
extern struct ImBuf *scalefastfieldImBuf(struct ImBuf *, short, short);

extern long getdither();

#endif /* IFF_H */