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|
/* |
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|
* Portable i/o for binary files |
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|
* |
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< |
* External symbols declared in standard.h |
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> |
* External symbols declared in rtio.h |
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|
*/ |
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|
|
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< |
/* ==================================================================== |
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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 |
| 48 |
< |
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 49 |
< |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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< |
* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
| 51 |
< |
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 52 |
< |
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 53 |
< |
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 54 |
< |
* 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 |
| 57 |
< |
* 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 |
| 63 |
< |
* information on Lawrence Berkeley National Laboratory, please see |
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< |
* <http://www.lbl.gov/>. |
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< |
*/ |
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> |
#include "copyright.h" |
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|
|
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< |
#include <stdio.h> |
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> |
#include "rtio.h" |
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|
|
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< |
#ifndef frexp |
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< |
extern double frexp(); |
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> |
#include <math.h> |
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> |
|
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> |
#ifdef getc_unlocked /* avoid horrendous overhead of flockfile */ |
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> |
#undef getc |
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> |
#undef putc |
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> |
#define getc getc_unlocked |
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> |
#define putc putc_unlocked |
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|
#endif |
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– |
#ifndef ldexp |
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– |
extern double ldexp(); |
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– |
#endif |
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|
|
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|
|
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|
void |
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< |
putstr(s, fp) /* write null-terminated string to fp */ |
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< |
register char *s; |
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< |
register FILE *fp; |
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> |
putstr( /* write null-terminated string to fp */ |
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> |
char *s, |
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> |
FILE *fp |
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> |
) |
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|
{ |
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|
do |
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|
putc(*s, fp); |
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|
|
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|
|
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|
void |
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< |
putint(i, siz, fp) /* write a siz-byte integer to fp */ |
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< |
long i; |
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< |
register int siz; |
| 40 |
< |
register FILE *fp; |
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> |
putint( /* write a siz-byte integer to fp */ |
| 38 |
> |
long i, |
| 39 |
> |
int siz, |
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> |
FILE *fp |
| 41 |
> |
) |
| 42 |
|
{ |
| 43 |
|
while (siz--) |
| 44 |
|
putc((int)(i>>(siz<<3) & 0xff), fp); |
| 46 |
|
|
| 47 |
|
|
| 48 |
|
void |
| 49 |
< |
putflt(f, fp) /* put out floating point number */ |
| 50 |
< |
double f; |
| 51 |
< |
FILE *fp; |
| 49 |
> |
putflt( /* put out floating point number */ |
| 50 |
> |
double f, |
| 51 |
> |
FILE *fp |
| 52 |
> |
) |
| 53 |
|
{ |
| 54 |
+ |
long m; |
| 55 |
|
int e; |
| 56 |
|
|
| 57 |
< |
putint((long)(frexp(f,&e)*0x7fffffff), 4, fp); |
| 57 |
> |
m = frexp(f, &e) * 0x7fffffff; |
| 58 |
> |
if (e > 127) { /* overflow */ |
| 59 |
> |
m = m > 0 ? (long)0x7fffffff : -(long)0x7fffffff; |
| 60 |
> |
e = 127; |
| 61 |
> |
} else if (e < -128) { /* underflow */ |
| 62 |
> |
m = 0; |
| 63 |
> |
e = 0; |
| 64 |
> |
} |
| 65 |
> |
putint(m, 4, fp); |
| 66 |
|
putint((long)e, 1, fp); |
| 67 |
|
} |
| 68 |
|
|
| 69 |
|
|
| 70 |
|
char * |
| 71 |
< |
getstr(s, fp) /* get null-terminated string */ |
| 72 |
< |
char *s; |
| 73 |
< |
register FILE *fp; |
| 71 |
> |
getstr( /* get null-terminated string */ |
| 72 |
> |
char *s, |
| 73 |
> |
FILE *fp |
| 74 |
> |
) |
| 75 |
|
{ |
| 76 |
< |
register char *cp; |
| 77 |
< |
register int c; |
| 76 |
> |
char *cp; |
| 77 |
> |
int c; |
| 78 |
|
|
| 79 |
|
cp = s; |
| 80 |
|
while ((c = getc(fp)) != EOF) |
| 86 |
|
|
| 87 |
|
|
| 88 |
|
long |
| 89 |
< |
getint(siz, fp) /* get a siz-byte integer */ |
| 90 |
< |
int siz; |
| 91 |
< |
register FILE *fp; |
| 89 |
> |
getint( /* get a siz-byte integer */ |
| 90 |
> |
int siz, |
| 91 |
> |
FILE *fp |
| 92 |
> |
) |
| 93 |
|
{ |
| 94 |
< |
register int c; |
| 95 |
< |
register long r; |
| 94 |
> |
int c; |
| 95 |
> |
long r; |
| 96 |
|
|
| 97 |
|
if ((c = getc(fp)) == EOF) |
| 98 |
|
return(EOF); |
| 108 |
|
|
| 109 |
|
|
| 110 |
|
double |
| 111 |
< |
getflt(fp) /* get a floating point number */ |
| 112 |
< |
FILE *fp; |
| 111 |
> |
getflt( /* get a floating point number */ |
| 112 |
> |
FILE *fp |
| 113 |
> |
) |
| 114 |
|
{ |
| 115 |
|
long l; |
| 116 |
|
double d; |
| 117 |
|
|
| 118 |
|
l = getint(4, fp); |
| 119 |
+ |
if (l == EOF && feof(fp)) /* EOF? */ |
| 120 |
+ |
return((double)EOF); |
| 121 |
+ |
if (l == 0) { |
| 122 |
+ |
getc(fp); /* exactly zero -- ignore exponent */ |
| 123 |
+ |
return(0.0); |
| 124 |
+ |
} |
| 125 |
|
d = (l + (l > 0 ? .5 : -.5)) * (1./0x7fffffff); |
| 126 |
|
return(ldexp(d, (int)getint(1, fp))); |
| 127 |
|
} |
