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greg |
2.3 |
/* RCSid: $Id$ */ |
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greg |
1.1 |
/* |
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* Definitions for resolution line in image file. |
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* |
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greg |
2.3 |
* Include after <stdio.h>, <string.h>, and <time.h> |
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* |
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greg |
1.1 |
* True image orientation is defined by an xy coordinate system |
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* whose origin is at the lower left corner of the image, with |
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* x increasing to the right and y increasing in the upward direction. |
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* This true orientation is independent of how the pixels are actually |
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* ordered in the file, which is indicated by the resolution line. |
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* This line is of the form "{+-}{XY} xyres {+-}{YX} yxres\n". |
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* A typical line for a 1024x600 image might be "-Y 600 +X 1024\n", |
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* indicating that the scanlines are in English text order (PIXSTANDARD). |
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*/ |
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greg |
2.3 |
/* ==================================================================== |
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* The Radiance Software License, Version 1.0 |
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* |
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* Copyright (c) 1990 - 2002 The Regents of the University of California, |
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* through Lawrence Berkeley National Laboratory. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, |
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* if any, must include the following acknowledgment: |
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* "This product includes Radiance software |
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* (http://radsite.lbl.gov/) |
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* developed by the Lawrence Berkeley National Laboratory |
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* (http://www.lbl.gov/)." |
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* Alternately, this acknowledgment may appear in the software itself, |
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* if and wherever such third-party acknowledgments normally appear. |
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* |
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* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
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* and "The Regents of the University of California" must |
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* not be used to endorse or promote products derived from this |
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* software without prior written permission. For written |
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* permission, please contact [email protected]. |
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* |
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* 5. Products derived from this software may not be called "Radiance", |
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* nor may "Radiance" appear in their name, without prior written |
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* permission of Lawrence Berkeley National Laboratory. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This software consists of voluntary contributions made by many |
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* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
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* information on Lawrence Berkeley National Laboratory, please see |
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* <http://www.lbl.gov/>. |
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*/ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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greg |
1.1 |
/* flags for scanline ordering */ |
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#define XDECR 1 |
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#define YDECR 2 |
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#define YMAJOR 4 |
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/* standard scanline ordering */ |
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#define PIXSTANDARD (YMAJOR|YDECR) |
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#define PIXSTDFMT "-Y %d +X %d\n" |
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/* structure for image dimensions */ |
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typedef struct { |
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greg |
2.3 |
int rt; /* orientation (from flags above) */ |
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greg |
1.1 |
int xr, yr; /* x and y resolution */ |
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} RESOLU; |
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/* macros to get scanline length and number */ |
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greg |
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#define scanlen(rs) ((rs)->rt & YMAJOR ? (rs)->xr : (rs)->yr) |
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#define numscans(rs) ((rs)->rt & YMAJOR ? (rs)->yr : (rs)->xr) |
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greg |
1.1 |
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/* resolution string buffer and its size */ |
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#define RESOLU_BUFLEN 32 |
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extern char resolu_buf[RESOLU_BUFLEN]; |
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/* macros for reading/writing resolution struct */ |
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#define fputsresolu(rs,fp) fputs(resolu2str(resolu_buf,rs),fp) |
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#define fgetsresolu(rs,fp) str2resolu(rs, \ |
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fgets(resolu_buf,RESOLU_BUFLEN,fp)) |
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/* reading/writing of standard ordering */ |
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#define fprtresolu(sl,ns,fp) fprintf(fp,PIXSTDFMT,ns,sl) |
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#define fscnresolu(sl,ns,fp) (fscanf(fp,PIXSTDFMT,ns,sl)==2) |
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greg |
2.3 |
#ifdef NOPROTO |
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/* defined in resolu.c */ |
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extern void fputresolu(); |
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extern int fgetresolu(); |
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extern char *resolu2str(); |
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extern int str2resolu(); |
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/* defined in header.c */ |
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extern void newheader(); |
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extern int isheadid(); |
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extern int headidval(); |
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extern int dateval(); |
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extern int isdate(); |
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extern void fputdate(); |
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extern void fputnow(); |
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extern void printargs(); |
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extern int isformat(); |
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extern int formatval(); |
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extern void fputformat(); |
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extern int getheader(); |
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extern int globmatch(); |
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extern int checkheader(); |
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#else |
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/* defined in resolu.c */ |
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extern void fputresolu(int ord, int sl, int ns, FILE *fp); |
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extern int fgetresolu(int *sl, int *ns, FILE *fp); |
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extern char * resolu2str(char *buf, RESOLU *rp); |
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extern int str2resolu(RESOLU *rp, char *buf); |
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/* defined in header.c */ |
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extern void newheader(char *t, FILE *fp); |
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extern int isheadid(char *s); |
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extern int headidval(char *r, char *s); |
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extern int dateval(time_t *t, char *s); |
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extern int isdate(char *s); |
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extern void fputdate(time_t t, FILE *fp); |
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extern void fputnow(FILE *fp); |
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extern void printargs(int ac, char **av, FILE *fp); |
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extern int isformat(char *s); |
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extern int formatval(char *r, char *s); |
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extern void fputformat(char *s, FILE *fp); |
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extern int getheader(FILE *fp, int (*f)(), char *p); |
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extern int globmatch(char *pat, char *str); |
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extern int checkheader(FILE *fin, char *fmt, FILE *fout); |
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#endif |
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#ifdef __cplusplus |
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} |
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#endif |