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#include "copyright.h" |
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| 12 |
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#include "ray.h" |
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– |
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#include "ambient.h" |
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| 15 |
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| 16 |
< |
#define putvec(v,fp) putflt((v)[0],fp);putflt((v)[1],fp);putflt((v)[2],fp) |
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> |
#define badflt(x) (((x) < -FHUGE) | ((x) > FHUGE)) |
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|
| 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])) |
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| 21 |
– |
#define badflt(x) ((x) < -FHUGE || (x) > FHUGE) |
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| 23 |
– |
#define badvec(v) (badflt((v)[0]) || badflt((v)[1]) || badflt((v)[2])) |
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– |
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| 25 |
– |
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| 26 |
– |
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void |
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putambmagic(fp) /* write out ambient value magic number */ |
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FILE *fp; |
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{ |
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< |
putint((long)AMBMAGIC, 2, fp); |
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> |
putint(AMBMAGIC, 2, fp); |
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} |
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hasambmagic(fp) /* read in and check validity of magic # */ |
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FILE *fp; |
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{ |
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< |
register int magic; |
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> |
int magic; |
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magic = getint(2, fp); |
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if (feof(fp)) |
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} |
| 40 |
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+ |
#define putpos(v,fp) putflt((v)[0],fp);putflt((v)[1],fp);putflt((v)[2],fp) |
| 43 |
+ |
|
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+ |
#define getpos(v,fp) (v)[0]=getflt(fp);(v)[1]=getflt(fp);(v)[2]=getflt(fp) |
| 45 |
+ |
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+ |
#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) |
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+ |
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| 50 |
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int |
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< |
writambval(av, fp) /* write ambient value to stream */ |
| 52 |
< |
register AMBVAL *av; |
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< |
FILE *fp; |
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> |
writambval( /* write ambient value to stream */ |
| 52 |
> |
AMBVAL *av, |
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> |
FILE *fp |
| 54 |
> |
) |
| 55 |
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{ |
| 56 |
< |
COLR col; |
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> |
COLR clr; |
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|
| 58 |
< |
putint((long)av->lvl, 1, fp); |
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> |
putint(av->lvl, 1, fp); |
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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 |
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colval(av->val,GRN), colval(av->val,BLU)); |
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< |
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 |
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return(ferror(fp) ? -1 : 0); |
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} |
| 72 |
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| 73 |
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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 |
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{ |
| 79 |
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double d; |
| 80 |
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|
| 81 |
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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); |
| 94 |
< |
if (badvec(av->gpos)) return(0); |
| 89 |
< |
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 (av->rad[0] > av->rad[1]+FTINY) return(0); |
| 87 |
> |
if ((colval(av->val,RED) < 0.) | |
| 88 |
> |
(colval(av->val,RED) >= FHUGE) | |
| 89 |
> |
(colval(av->val,GRN) < 0.) | |
| 90 |
> |
(colval(av->val,GRN) >= FHUGE) | |
| 91 |
> |
(colval(av->val,BLU) < 0.) | |
| 92 |
> |
(colval(av->val,BLU) >= FHUGE)) return(0); |
| 93 |
> |
if (badflt(av->gpos[0]) | badflt(av->gpos[1])) return(0); |
| 94 |
> |
if (badflt(av->gdir[0]) | badflt(av->gdir[1])) return(0); |
| 95 |
|
return(1); |
| 96 |
|
} |
| 97 |
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|
| 98 |
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|
| 99 |
|
int |
| 100 |
< |
readambval(av, fp) /* read ambient value from stream */ |
| 101 |
< |
register AMBVAL *av; |
| 102 |
< |
FILE *fp; |
| 100 |
> |
readambval( /* read ambient value from stream */ |
| 101 |
> |
AMBVAL *av, |
| 102 |
> |
FILE *fp |
| 103 |
> |
) |
| 104 |
|
{ |
| 105 |
< |
COLR col; |
| 105 |
> |
COLR clr; |
| 106 |
|
|
| 107 |
< |
av->lvl = getint(1, fp); |
| 107 |
> |
av->lvl = getint(1, fp) & 0xff; |
| 108 |
|
if (feof(fp)) |
| 109 |
|
return(0); |
| 110 |
|
av->weight = getflt(fp); |
| 111 |
< |
getvec(av->pos, fp); |
| 112 |
< |
getvec(av->dir, fp); |
| 113 |
< |
if (fread((char *)col, sizeof(col), 1, fp) != 1) |
| 111 |
> |
getpos(av->pos, fp); |
| 112 |
> |
av->ndir = getint(sizeof(av->ndir), fp); |
| 113 |
> |
av->udir = getint(sizeof(av->udir), fp); |
| 114 |
> |
if (getbinary((char *)clr, sizeof(clr), 1, fp) != 1) |
| 115 |
|
return(0); |
| 116 |
< |
colr_color(av->val, col); |
| 117 |
< |
av->rad = getflt(fp); |
| 118 |
< |
getvec(av->gpos, fp); |
| 119 |
< |
getvec(av->gdir, fp); |
| 116 |
> |
colr_color(av->val, clr); |
| 117 |
> |
getv2(av->rad, fp); |
| 118 |
> |
getv2(av->gpos, fp); |
| 119 |
> |
getv2(av->gdir, fp); |
| 120 |
> |
av->corral = (uint32)getint(sizeof(av->corral), fp); |
| 121 |
|
return(feof(fp) ? 0 : ambvalOK(av)); |
| 122 |
|
} |
