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#include "ambient.h" |
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< |
#define badflt(x) ((x) < -FHUGE || (x) > FHUGE) |
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> |
#define badflt(x) (((x) < -FHUGE) | ((x) > FHUGE)) |
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#define badvec(v) (badflt((v)[0]) | badflt((v)[1]) | badflt((v)[2])) |
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} |
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#ifndef OLDAMB |
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#define putpos(v,fp) putflt((v)[0],fp);putflt((v)[1],fp);putflt((v)[2],fp) |
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#define getpos(v,fp) (v)[0]=getflt(fp);(v)[1]=getflt(fp);(v)[2]=getflt(fp) |
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if ((av->weight <= 0.) | (av->weight > 1.)) return(0); |
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if ((av->rad[0] <= 0.) | (av->rad[0] >= FHUGE)) return(0); |
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if ((av->rad[1] <= 0.) | (av->rad[1] >= FHUGE)) return(0); |
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if (av->rad[0] > av->rad[1]+FTINY) return(0); |
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if ((colval(av->val,RED) < 0.) | |
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(colval(av->val,RED) >= FHUGE) | |
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(colval(av->val,GRN) < 0.) | |
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(colval(av->val,GRN) >= FHUGE) | |
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(colval(av->val,BLU) < 0.) | |
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(colval(av->val,BLU) >= FHUGE)) return(0); |
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< |
if (badflt(av->gpos[0]) || badflt(av->gpos[1])) return(0); |
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< |
if (badflt(av->gdir[0]) || badflt(av->gdir[1])) return(0); |
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> |
if (badflt(av->gpos[0]) | badflt(av->gpos[1])) return(0); |
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> |
if (badflt(av->gdir[0]) | badflt(av->gdir[1])) return(0); |
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return(1); |
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} |
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av->corral = (uint32)getint(sizeof(av->corral), fp); |
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return(feof(fp) ? 0 : ambvalOK(av)); |
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} |
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#else /* ! NEWAMB */ |
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#define putvec(v,fp) putflt((v)[0],fp);putflt((v)[1],fp);putflt((v)[2],fp) |
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#define getvec(v,fp) (v)[0]=getflt(fp);(v)[1]=getflt(fp);(v)[2]=getflt(fp) |
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int |
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writambval(av, fp) /* write ambient value to stream */ |
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AMBVAL *av; |
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FILE *fp; |
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{ |
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COLR clr; |
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putint(av->lvl, 1, fp); |
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putflt(av->weight, fp); |
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putvec(av->pos, fp); |
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putvec(av->dir, fp); |
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setcolr(clr, colval(av->val,RED), |
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colval(av->val,GRN), colval(av->val,BLU)); |
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putbinary((char *)clr, sizeof(clr), 1, fp); |
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putflt(av->rad, fp); |
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putvec(av->gpos, fp); |
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putvec(av->gdir, fp); |
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return(ferror(fp) ? -1 : 0); |
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} |
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int |
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ambvalOK(av) /* check consistency of ambient value */ |
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AMBVAL *av; |
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{ |
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double d; |
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if (badvec(av->pos)) return(0); |
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if (badvec(av->dir)) return(0); |
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d = DOT(av->dir,av->dir); |
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if (d < 0.9999 || d > 1.0001) return(0); |
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if (av->lvl < 0 || av->lvl > 100) return(0); |
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if (av->weight <= 0. || av->weight > 1.) return(0); |
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if (av->rad <= 0. || av->rad >= FHUGE) return(0); |
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if (colval(av->val,RED) < 0. || |
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colval(av->val,RED) > FHUGE || |
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colval(av->val,GRN) < 0. || |
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colval(av->val,GRN) > FHUGE || |
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colval(av->val,BLU) < 0. || |
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colval(av->val,BLU) > FHUGE) return(0); |
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if (badvec(av->gpos)) return(0); |
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if (badvec(av->gdir)) return(0); |
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return(1); |
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} |
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|
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int |
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readambval(av, fp) /* read ambient value from stream */ |
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AMBVAL *av; |
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FILE *fp; |
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{ |
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COLR clr; |
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av->lvl = getint(1, fp); |
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if (feof(fp)) |
189 |
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return(0); |
190 |
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av->weight = getflt(fp); |
191 |
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getvec(av->pos, fp); |
192 |
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getvec(av->dir, fp); |
193 |
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if (getbinary((char *)clr, sizeof(clr), 1, fp) != 1) |
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return(0); |
195 |
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colr_color(av->val, clr); |
196 |
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av->rad = getflt(fp); |
197 |
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getvec(av->gpos, fp); |
198 |
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getvec(av->gdir, fp); |
199 |
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return(feof(fp) ? 0 : ambvalOK(av)); |
200 |
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} |
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|
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#endif /* ! NEWAMB */ |