| 1 |
/* RCSid: $Id$ */ |
| 2 |
/* |
| 3 |
* Definitions for resolution line in image file. |
| 4 |
* |
| 5 |
* Include after <stdio.h>, <string.h>, and <time.h> |
| 6 |
* |
| 7 |
* True image orientation is defined by an xy coordinate system |
| 8 |
* whose origin is at the lower left corner of the image, with |
| 9 |
* x increasing to the right and y increasing in the upward direction. |
| 10 |
* This true orientation is independent of how the pixels are actually |
| 11 |
* ordered in the file, which is indicated by the resolution line. |
| 12 |
* This line is of the form "{+-}{XY} xyres {+-}{YX} yxres\n". |
| 13 |
* A typical line for a 1024x600 image might be "-Y 600 +X 1024\n", |
| 14 |
* indicating that the scanlines are in English text order (PIXSTANDARD). |
| 15 |
*/ |
| 16 |
|
| 17 |
/* ==================================================================== |
| 18 |
* The Radiance Software License, Version 1.0 |
| 19 |
* |
| 20 |
* Copyright (c) 1990 - 2002 The Regents of the University of California, |
| 21 |
* through Lawrence Berkeley National Laboratory. All rights reserved. |
| 22 |
* |
| 23 |
* Redistribution and use in source and binary forms, with or without |
| 24 |
* modification, are permitted provided that the following conditions |
| 25 |
* are met: |
| 26 |
* |
| 27 |
* 1. Redistributions of source code must retain the above copyright |
| 28 |
* notice, this list of conditions and the following disclaimer. |
| 29 |
* |
| 30 |
* 2. Redistributions in binary form must reproduce the above copyright |
| 31 |
* notice, this list of conditions and the following disclaimer in |
| 32 |
* the documentation and/or other materials provided with the |
| 33 |
* distribution. |
| 34 |
* |
| 35 |
* 3. The end-user documentation included with the redistribution, |
| 36 |
* if any, must include the following acknowledgment: |
| 37 |
* "This product includes Radiance software |
| 38 |
* (http://radsite.lbl.gov/) |
| 39 |
* developed by the Lawrence Berkeley National Laboratory |
| 40 |
* (http://www.lbl.gov/)." |
| 41 |
* Alternately, this acknowledgment may appear in the software itself, |
| 42 |
* if and wherever such third-party acknowledgments normally appear. |
| 43 |
* |
| 44 |
* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
| 45 |
* and "The Regents of the University of California" must |
| 46 |
* not be used to endorse or promote products derived from this |
| 47 |
* software without prior written permission. For written |
| 48 |
* permission, please contact [email protected]. |
| 49 |
* |
| 50 |
* 5. Products derived from this software may not be called "Radiance", |
| 51 |
* nor may "Radiance" appear in their name, without prior written |
| 52 |
* permission of Lawrence Berkeley National Laboratory. |
| 53 |
* |
| 54 |
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| 55 |
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 56 |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 57 |
* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
| 58 |
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 59 |
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 60 |
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 61 |
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 62 |
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 63 |
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 64 |
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 65 |
* SUCH DAMAGE. |
| 66 |
* ==================================================================== |
| 67 |
* |
| 68 |
* This software consists of voluntary contributions made by many |
| 69 |
* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
| 70 |
* information on Lawrence Berkeley National Laboratory, please see |
| 71 |
* <http://www.lbl.gov/>. |
| 72 |
*/ |
| 73 |
|
| 74 |
#ifdef __cplusplus |
| 75 |
extern "C" { |
| 76 |
#endif |
| 77 |
|
| 78 |
/* flags for scanline ordering */ |
| 79 |
#define XDECR 1 |
| 80 |
#define YDECR 2 |
| 81 |
#define YMAJOR 4 |
| 82 |
|
| 83 |
/* standard scanline ordering */ |
| 84 |
#define PIXSTANDARD (YMAJOR|YDECR) |
| 85 |
#define PIXSTDFMT "-Y %d +X %d\n" |
| 86 |
|
| 87 |
/* structure for image dimensions */ |
| 88 |
typedef struct { |
| 89 |
int rt; /* orientation (from flags above) */ |
| 90 |
int xr, yr; /* x and y resolution */ |
| 91 |
} RESOLU; |
| 92 |
|
| 93 |
/* macros to get scanline length and number */ |
| 94 |
#define scanlen(rs) ((rs)->rt & YMAJOR ? (rs)->xr : (rs)->yr) |
| 95 |
#define numscans(rs) ((rs)->rt & YMAJOR ? (rs)->yr : (rs)->xr) |
| 96 |
|
| 97 |
/* resolution string buffer and its size */ |
| 98 |
#define RESOLU_BUFLEN 32 |
| 99 |
extern char resolu_buf[RESOLU_BUFLEN]; |
| 100 |
|
| 101 |
/* macros for reading/writing resolution struct */ |
| 102 |
#define fputsresolu(rs,fp) fputs(resolu2str(resolu_buf,rs),fp) |
| 103 |
#define fgetsresolu(rs,fp) str2resolu(rs, \ |
| 104 |
fgets(resolu_buf,RESOLU_BUFLEN,fp)) |
| 105 |
|
| 106 |
/* reading/writing of standard ordering */ |
| 107 |
#define fprtresolu(sl,ns,fp) fprintf(fp,PIXSTDFMT,ns,sl) |
| 108 |
#define fscnresolu(sl,ns,fp) (fscanf(fp,PIXSTDFMT,ns,sl)==2) |
| 109 |
|
| 110 |
#ifdef NOPROTO |
| 111 |
/* defined in resolu.c */ |
| 112 |
extern void fputresolu(); |
| 113 |
extern int fgetresolu(); |
| 114 |
extern char *resolu2str(); |
| 115 |
extern int str2resolu(); |
| 116 |
/* defined in header.c */ |
| 117 |
extern void newheader(); |
| 118 |
extern int isheadid(); |
| 119 |
extern int headidval(); |
| 120 |
extern int dateval(); |
| 121 |
extern int isdate(); |
| 122 |
extern void fputdate(); |
| 123 |
extern void fputnow(); |
| 124 |
extern void printargs(); |
| 125 |
extern int isformat(); |
| 126 |
extern int formatval(); |
| 127 |
extern void fputformat(); |
| 128 |
extern int getheader(); |
| 129 |
extern int globmatch(); |
| 130 |
extern int checkheader(); |
| 131 |
|
| 132 |
#else |
| 133 |
/* defined in resolu.c */ |
| 134 |
extern void fputresolu(int ord, int sl, int ns, FILE *fp); |
| 135 |
extern int fgetresolu(int *sl, int *ns, FILE *fp); |
| 136 |
extern char * resolu2str(char *buf, RESOLU *rp); |
| 137 |
extern int str2resolu(RESOLU *rp, char *buf); |
| 138 |
/* defined in header.c */ |
| 139 |
extern void newheader(char *t, FILE *fp); |
| 140 |
extern int isheadid(char *s); |
| 141 |
extern int headidval(char *r, char *s); |
| 142 |
extern int dateval(time_t *t, char *s); |
| 143 |
extern int isdate(char *s); |
| 144 |
extern void fputdate(time_t t, FILE *fp); |
| 145 |
extern void fputnow(FILE *fp); |
| 146 |
extern void printargs(int ac, char **av, FILE *fp); |
| 147 |
extern int isformat(char *s); |
| 148 |
extern int formatval(char *r, char *s); |
| 149 |
extern void fputformat(char *s, FILE *fp); |
| 150 |
extern int getheader(FILE *fp, int (*f)(), char *p); |
| 151 |
extern int globmatch(char *pat, char *str); |
| 152 |
extern int checkheader(FILE *fin, char *fmt, FILE *fout); |
| 153 |
|
| 154 |
#endif |
| 155 |
|
| 156 |
#ifdef __cplusplus |
| 157 |
} |
| 158 |
#endif |
