| 7 |
|
* Declarations of external symbols in ambient.h |
| 8 |
|
*/ |
| 9 |
|
|
| 10 |
< |
/* ==================================================================== |
| 11 |
< |
* The Radiance Software License, Version 1.0 |
| 12 |
< |
* |
| 13 |
< |
* Copyright (c) 1990 - 2002 The Regents of the University of California, |
| 14 |
< |
* through Lawrence Berkeley National Laboratory. All rights reserved. |
| 15 |
< |
* |
| 16 |
< |
* Redistribution and use in source and binary forms, with or without |
| 17 |
< |
* modification, are permitted provided that the following conditions |
| 18 |
< |
* are met: |
| 19 |
< |
* |
| 20 |
< |
* 1. Redistributions of source code must retain the above copyright |
| 21 |
< |
* notice, this list of conditions and the following disclaimer. |
| 22 |
< |
* |
| 23 |
< |
* 2. Redistributions in binary form must reproduce the above copyright |
| 24 |
< |
* notice, this list of conditions and the following disclaimer in |
| 25 |
< |
* the documentation and/or other materials provided with the |
| 26 |
< |
* distribution. |
| 27 |
< |
* |
| 28 |
< |
* 3. The end-user documentation included with the redistribution, |
| 29 |
< |
* if any, must include the following acknowledgment: |
| 30 |
< |
* "This product includes Radiance software |
| 31 |
< |
* (http://radsite.lbl.gov/) |
| 32 |
< |
* developed by the Lawrence Berkeley National Laboratory |
| 33 |
< |
* (http://www.lbl.gov/)." |
| 34 |
< |
* Alternately, this acknowledgment may appear in the software itself, |
| 35 |
< |
* if and wherever such third-party acknowledgments normally appear. |
| 36 |
< |
* |
| 37 |
< |
* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
| 38 |
< |
* and "The Regents of the University of California" must |
| 39 |
< |
* not be used to endorse or promote products derived from this |
| 40 |
< |
* software without prior written permission. For written |
| 41 |
< |
* permission, please contact [email protected]. |
| 42 |
< |
* |
| 43 |
< |
* 5. Products derived from this software may not be called "Radiance", |
| 44 |
< |
* nor may "Radiance" appear in their name, without prior written |
| 45 |
< |
* permission of Lawrence Berkeley National Laboratory. |
| 46 |
< |
* |
| 47 |
< |
* 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 |
| 50 |
< |
* 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 |
| 55 |
< |
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 56 |
< |
* 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 |
| 58 |
< |
* SUCH DAMAGE. |
| 59 |
< |
* ==================================================================== |
| 60 |
< |
* |
| 61 |
< |
* This software consists of voluntary contributions made by many |
| 62 |
< |
* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
| 63 |
< |
* information on Lawrence Berkeley National Laboratory, please see |
| 64 |
< |
* <http://www.lbl.gov/>. |
| 65 |
< |
*/ |
| 10 |
> |
#include "copyright.h" |
| 11 |
|
|
| 12 |
|
#include "ray.h" |
| 68 |
– |
|
| 13 |
|
#include "ambient.h" |
| 14 |
|
|
| 15 |
|
|
| 16 |
< |
#define putvec(v,fp) putflt((v)[0],fp);putflt((v)[1],fp);putflt((v)[2],fp) |
| 16 |
> |
#define badflt(x) (((x) < -FHUGE) | ((x) > FHUGE)) |
| 17 |
|
|
| 18 |
< |
#define getvec(v,fp) (v)[0]=getflt(fp);(v)[1]=getflt(fp);(v)[2]=getflt(fp) |
| 18 |
> |
#define badvec(v) (badflt((v)[0]) | badflt((v)[1]) | badflt((v)[2])) |
| 19 |
|
|
| 76 |
– |
#define badflt(x) ((x) < -FHUGE || (x) > FHUGE) |
| 20 |
|
|
| 78 |
– |
#define badvec(v) (badflt((v)[0]) || badflt((v)[1]) || badflt((v)[2])) |
| 79 |
– |
|
| 80 |
– |
|
| 81 |
– |
|
| 21 |
|
void |
| 22 |
|
putambmagic(fp) /* write out ambient value magic number */ |
| 23 |
|
FILE *fp; |
| 24 |
|
{ |
| 25 |
< |
putint((long)AMBMAGIC, 2, fp); |
| 25 |
> |
putint(AMBMAGIC, 2, fp); |
| 26 |
|
} |
| 27 |
|
|
| 28 |
|
|
| 30 |
|
hasambmagic(fp) /* read in and check validity of magic # */ |
| 31 |
|
FILE *fp; |
| 32 |
|
{ |
| 33 |
< |
register int magic; |
| 33 |
> |
int magic; |
| 34 |
|
|
| 35 |
|
magic = getint(2, fp); |
| 36 |
|
if (feof(fp)) |
| 39 |
|
} |
| 40 |
|
|
| 41 |
|
|
| 42 |
+ |
#define putpos(v,fp) putflt((v)[0],fp);putflt((v)[1],fp);putflt((v)[2],fp) |
| 43 |
+ |
|
| 44 |
+ |
#define getpos(v,fp) (v)[0]=getflt(fp);(v)[1]=getflt(fp);(v)[2]=getflt(fp) |
| 45 |
+ |
|
| 46 |
+ |
#define putv2(v2,fp) putflt((v2)[0],fp);putflt((v2)[1],fp) |
| 47 |
+ |
|
| 48 |
+ |
#define getv2(v2,fp) (v2)[0]=getflt(fp);(v2)[1]=getflt(fp) |
| 49 |
+ |
|
| 50 |
|
int |
| 51 |
< |
writambval(av, fp) /* write ambient value to stream */ |
| 52 |
< |
register AMBVAL *av; |
| 53 |
< |
FILE *fp; |
| 51 |
> |
writambval( /* write ambient value to stream */ |
| 52 |
> |
AMBVAL *av, |
| 53 |
> |
FILE *fp |
| 54 |
> |
) |
| 55 |
|
{ |
| 56 |
< |
COLR col; |
| 56 |
> |
COLR clr; |
| 57 |
|
|
| 58 |
< |
putint((long)av->lvl, 1, fp); |
| 58 |
> |
putint(av->lvl, 1, fp); |
| 59 |
|
putflt(av->weight, fp); |
| 60 |
< |
putvec(av->pos, fp); |
| 61 |
< |
putvec(av->dir, fp); |
| 62 |
< |
setcolr(col, colval(av->val,RED), |
| 60 |
> |
putpos(av->pos, fp); |
| 61 |
> |
putint(av->ndir, sizeof(av->ndir), fp); |
| 62 |
> |
putint(av->udir, sizeof(av->udir), fp); |
| 63 |
> |
setcolr(clr, colval(av->val,RED), |
| 64 |
|
colval(av->val,GRN), colval(av->val,BLU)); |
| 65 |
< |
fwrite((char *)col, sizeof(col), 1, fp); |
| 66 |
< |
putflt(av->rad, fp); |
| 67 |
< |
putvec(av->gpos, fp); |
| 68 |
< |
putvec(av->gdir, fp); |
| 65 |
> |
putbinary((char *)clr, sizeof(clr), 1, fp); |
| 66 |
> |
putv2(av->rad, fp); |
| 67 |
> |
putv2(av->gpos, fp); |
| 68 |
> |
putv2(av->gdir, fp); |
| 69 |
> |
putint(av->corral, sizeof(av->corral), fp); |
| 70 |
|
return(ferror(fp) ? -1 : 0); |
| 71 |
|
} |
| 72 |
|
|
| 73 |
|
|
| 74 |
|
int |
| 75 |
< |
ambvalOK(av) /* check consistency of ambient value */ |
| 76 |
< |
register AMBVAL *av; |
| 75 |
> |
ambvalOK( /* check consistency of ambient value */ |
| 76 |
> |
AMBVAL *av |
| 77 |
> |
) |
| 78 |
|
{ |
| 79 |
|
double d; |
| 80 |
|
|
| 81 |
|
if (badvec(av->pos)) return(0); |
| 82 |
< |
if (badvec(av->dir)) return(0); |
| 83 |
< |
d = DOT(av->dir,av->dir); |
| 84 |
< |
if (d < 0.9999 || d > 1.0001) return(0); |
| 85 |
< |
if (av->lvl < 0 || av->lvl > 100) return(0); |
| 86 |
< |
if (av->weight <= 0. || av->weight > 1.) return(0); |
| 87 |
< |
if (av->rad <= 0. || av->rad >= FHUGE) return(0); |
| 88 |
< |
if (colval(av->val,RED) < 0. || |
| 89 |
< |
colval(av->val,RED) > FHUGE || |
| 90 |
< |
colval(av->val,GRN) < 0. || |
| 91 |
< |
colval(av->val,GRN) > FHUGE || |
| 92 |
< |
colval(av->val,BLU) < 0. || |
| 93 |
< |
colval(av->val,BLU) > FHUGE) return(0); |
| 143 |
< |
if (badvec(av->gpos)) return(0); |
| 144 |
< |
if (badvec(av->gdir)) return(0); |
| 82 |
> |
if (!av->ndir | !av->udir) return(0); |
| 83 |
> |
if ((av->weight <= 0.) | (av->weight > 1.)) return(0); |
| 84 |
> |
if ((av->rad[0] <= 0.) | (av->rad[0] >= FHUGE)) return(0); |
| 85 |
> |
if ((av->rad[1] <= 0.) | (av->rad[1] >= FHUGE)) return(0); |
| 86 |
> |
if ((colval(av->val,RED) < 0.) | |
| 87 |
> |
(colval(av->val,RED) >= FHUGE) | |
| 88 |
> |
(colval(av->val,GRN) < 0.) | |
| 89 |
> |
(colval(av->val,GRN) >= FHUGE) | |
| 90 |
> |
(colval(av->val,BLU) < 0.) | |
| 91 |
> |
(colval(av->val,BLU) >= FHUGE)) return(0); |
| 92 |
> |
if (badflt(av->gpos[0]) || badflt(av->gpos[1])) return(0); |
| 93 |
> |
if (badflt(av->gdir[0]) || badflt(av->gdir[1])) return(0); |
| 94 |
|
return(1); |
| 95 |
|
} |
| 96 |
|
|
| 97 |
|
|
| 98 |
|
int |
| 99 |
< |
readambval(av, fp) /* read ambient value from stream */ |
| 100 |
< |
register AMBVAL *av; |
| 101 |
< |
FILE *fp; |
| 99 |
> |
readambval( /* read ambient value from stream */ |
| 100 |
> |
AMBVAL *av, |
| 101 |
> |
FILE *fp |
| 102 |
> |
) |
| 103 |
|
{ |
| 104 |
< |
COLR col; |
| 104 |
> |
COLR clr; |
| 105 |
|
|
| 106 |
< |
av->lvl = getint(1, fp); |
| 106 |
> |
av->lvl = getint(1, fp) & 0xff; |
| 107 |
|
if (feof(fp)) |
| 108 |
|
return(0); |
| 109 |
|
av->weight = getflt(fp); |
| 110 |
< |
getvec(av->pos, fp); |
| 111 |
< |
getvec(av->dir, fp); |
| 112 |
< |
if (fread((char *)col, sizeof(col), 1, fp) != 1) |
| 110 |
> |
getpos(av->pos, fp); |
| 111 |
> |
av->ndir = getint(sizeof(av->ndir), fp); |
| 112 |
> |
av->udir = getint(sizeof(av->udir), fp); |
| 113 |
> |
if (getbinary((char *)clr, sizeof(clr), 1, fp) != 1) |
| 114 |
|
return(0); |
| 115 |
< |
colr_color(av->val, col); |
| 116 |
< |
av->rad = getflt(fp); |
| 117 |
< |
getvec(av->gpos, fp); |
| 118 |
< |
getvec(av->gdir, fp); |
| 115 |
> |
colr_color(av->val, clr); |
| 116 |
> |
getv2(av->rad, fp); |
| 117 |
> |
getv2(av->gpos, fp); |
| 118 |
> |
getv2(av->gdir, fp); |
| 119 |
> |
av->corral = (uint32)getint(sizeof(av->corral), fp); |
| 120 |
|
return(feof(fp) ? 0 : ambvalOK(av)); |
| 121 |
|
} |
