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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: gdevsgi.h,v 1.1 2000/03/09 08:40:41 lpd Exp $*/
- /* 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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