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- /*
- * (c) Copyright 1993, 1994, Silicon Graphics, Inc.
- * ALL RIGHTS RESERVED
- * Permission to use, copy, modify, and distribute this software for
- * any purpose and without fee is hereby granted, provided that the above
- * copyright notice appear in all copies and that both the copyright notice
- * and this permission notice appear in supporting documentation, and that
- * the name of Silicon Graphics, Inc. not be used in advertising
- * or publicity pertaining to distribution of the software without specific,
- * written prior permission.
- *
- * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
- * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
- * FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
- * GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
- * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
- * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
- * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
- * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN
- * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
- * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * US Government Users Restricted Rights
- * Use, duplication, or disclosure by the Government is subject to
- * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
- * (c)(1)(ii) of the Rights in Technical Data and Computer Software
- * clause at DFARS 252.227-7013 and/or in similar or successor
- * clauses in the FAR or the DOD or NASA FAR Supplement.
- * Unpublished-- rights reserved under the copyright laws of the
- * United States. Contractor/manufacturer is Silicon Graphics,
- * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311.
- *
- * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
- */
- #ifndef __GL_IMAGE_H__
- #define __GL_IMAGE_H__
- /*
- * Defines for image files . . . .
- *
- * Paul Haeberli - 1984
- * Look in /usr/people/4Dgifts/iristools/imgtools for example code!
- *
- */
-
- #include <stdio.h>
-
- #define IMAGIC 0732
-
- /* colormap of images */
- #define CM_NORMAL 0 /* file contains rows of values which
- * are either RGB values (zsize == 3)
- * or greyramp values (zsize == 1) */
- #define CM_DITHERED 1
- #define CM_SCREEN 2 /* file contains data which is a screen
- * image; getrow returns buffer which
- * can be displayed directly with
- * writepixels */
- #define CM_COLORMAP 3 /* a colormap file */
-
- #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;
- unsigned long max;
- 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;
-
- void getrow(IMAGE *, unsigned short *, int, int);
- IMAGE *iopen(char *, char *);
- IMAGE *icreate();
- unsigned short *ibufalloc();
-
- #define IMAGEDEF /* for backwards compatibility */
- #endif /* !__GL_IMAGE_H__ */
-