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/*
* This file is distributed with Ghostscript, but its author,
* Tanmoy Bhattacharya (tanmoy@qcd.lanl.gov) hereby places it in the
* public domain.
*
* The contents of this file were derived (indeed, largely copied) from
* the file image.h on SGI's file server; there is no copyright on that file.
*/
/*$Id$*/
/* SGI raster file definitions */
#ifndef gdevsgi_INCLUDED
# define gdevsgi_INCLUDED
#define IMAGIC 0732
/* colormap of images */
#define CM_NORMAL 0
#define CM_DITHERED 1
#define CM_SCREEN 2
#define CM_COLORMAP 3
#define TYPEMASK 0xff00
#define BPPMASK 0x00ff
#define ITYPE_VERBATIM 0x0000
#define ITYPE_RLE 0x0100
#define ISRLE(type) (((type) & 0xff00) == ITYPE_RLE)
#define ISVERBATIM(type) (((type) & 0xff00) == ITYPE_VERBATIM)
#define BPP(type) ((type) & BPPMASK)
#define RLE(bpp) (ITYPE_RLE | (bpp))
#define VERBATIM(bpp) (ITYPE_VERBATIM | (bpp))
#define IBUFSIZE(pixels) ((pixels+(pixels>>6))<<2)
#define RLE_NOP 0x00
#define ierror(p) (((p)->flags&_IOERR)!=0)
#define ifileno(p) ((p)->file)
#define getpix(p) (--(p)->cnt>=0 ? *(p)->ptr++ : ifilbuf(p))
#define putpix(p,x) (--(p)->cnt>=0 \
? ((int)(*(p)->ptr++=(unsigned)(x))) \
: iflsbuf(p,(unsigned)(x)))
typedef struct {
unsigned short imagic; /* stuff saved on disk . . */
unsigned short type;
unsigned short dim;
unsigned short xsize;
unsigned short ysize;
unsigned short zsize;
unsigned long min_color;
unsigned long max_color;
unsigned long wastebytes;
char name[80];
unsigned long colormap;
long file; /* stuff used in core only */
unsigned short flags;
short dorev;
short x;
short y;
short z;
short cnt;
unsigned short *ptr;
unsigned short *base;
unsigned short *tmpbuf;
unsigned long offset;
unsigned long rleend; /* for rle images */
unsigned long *rowstart; /* for rle images */
long *rowsize; /* for rle images */
} IMAGE;
#endif /* gdevsgi_INCLUDED */
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