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#ifndef lint |
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static const char RCSid[] = "$Id: mkillum3.c,v 2.10 2004/09/28 17:54:18 greg Exp $"; |
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#endif |
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/* |
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* Routines to print mkillum objects |
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*/ |
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|
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#include "mkillum.h" |
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#include "paths.h" |
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|
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#define brt(col) (.263*(col)[0]+.655*(col)[1]+.082*(col)[2]) |
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|
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char DATORD[] = "RGB"; /* data ordering */ |
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char DATSUF[] = ".dat"; /* data file suffix */ |
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char DSTSUF[] = ".dist"; /* distribution suffix */ |
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char FNCFNM[] = "illum.cal"; /* function file name */ |
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|
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void compinv(float *rinv, float *rp, int m); |
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void colorout(int p, float *da, int n, int m, double mult, FILE *fp); |
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void fputnum(double d, FILE *fp); |
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void brightout(float *da, int n, int m, double mult, FILE *fp); |
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void fputeol(FILE *fp); |
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void compavg(float col[3], float *da, int n); |
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char * dfname(struct illum_args *il, int c); |
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FILE * dfopen(struct illum_args *il, int c); |
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|
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|
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void |
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printobj( /* print out an object */ |
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char *mod, |
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register OBJREC *obj |
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) |
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{ |
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register int i; |
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|
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if (issurface(obj->otype) && !strcmp(mod, VOIDID)) |
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return; /* don't print void surfaces */ |
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printf("\n%s %s %s", mod, ofun[obj->otype].funame, obj->oname); |
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printf("\n%d", obj->oargs.nsargs); |
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for (i = 0; i < obj->oargs.nsargs; i++) |
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printf(" %s", obj->oargs.sarg[i]); |
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#ifdef IARGS |
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printf("\n%d", obj->oargs.niargs); |
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for (i = 0; i < obj->oargs.niargs; i++) |
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printf(" %d", obj->oargs.iarg[i]); |
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#else |
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printf("\n0"); |
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#endif |
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printf("\n%d", obj->oargs.nfargs); |
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for (i = 0; i < obj->oargs.nfargs; i++) { |
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if (i%3 == 0) |
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putchar('\n'); |
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printf(" %18.12g", obj->oargs.farg[i]); |
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} |
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putchar('\n'); |
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} |
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|
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|
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char * |
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dfname( /* return data file name */ |
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struct illum_args *il, |
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int c |
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) |
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{ |
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char fname[MAXSTR]; |
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register char *s; |
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|
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s = strcpy(fname, il->datafile); |
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s += strlen(s); |
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if (c) *s++ = c; |
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if (il->dfnum > 0) { |
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sprintf(s, "%d", il->dfnum); |
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s += strlen(s); |
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} |
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strcpy(s, DATSUF); |
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return(getpath(fname, NULL, 0)); |
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} |
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|
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|
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FILE * |
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dfopen( /* open data file */ |
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register struct illum_args *il, |
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int c |
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) |
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{ |
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char *fn; |
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FILE *fp; |
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/* get a usable file name */ |
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for (fn = dfname(il, c); |
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!(il->flags & IL_DATCLB) && access(fn, F_OK) == 0; |
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fn = dfname(il, c)) |
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il->dfnum++; |
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/* open it for writing */ |
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if ((fp = fopen(fn, "w")) == NULL) { |
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sprintf(errmsg, "cannot open data file \"%s\"", fn); |
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error(SYSTEM, errmsg); |
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} |
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return(fp); |
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} |
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|
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|
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extern void |
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flatout( /* write hemispherical distribution */ |
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struct illum_args *il, |
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float *da, |
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int n, |
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int m, |
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FVECT u, |
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FVECT v, |
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FVECT w |
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) |
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{ |
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float *Ninv; |
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FILE *dfp; |
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int i; |
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|
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if ((Ninv = (float *)malloc(3*m*sizeof(float))) == NULL) |
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error(SYSTEM, "out of memory in flatout"); |
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compinv(Ninv, da, m); |
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if (il->flags & IL_COLDST) { |
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printf("\n%s %s %s%s", VOIDID, ofun[PAT_CDATA].funame, |
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il->matname, DSTSUF); |
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printf("\n9 red green blue"); |
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for (i = 0; i < 3; i++) { |
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dfp = dfopen(il, DATORD[i]); |
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fprintf(dfp, "2\n%f %f %d\n%f %f %d\n", |
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1.+.5/n, .5/n, n+1, |
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0., 2.*PI, m+1); |
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colorout(i, Ninv, 1, m, 1./il->nsamps/il->col[i], dfp); |
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colorout(i, da, n, m, 1./il->nsamps/il->col[i], dfp); |
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fputeol(dfp); |
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fclose(dfp); |
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printf(" %s", dfname(il, DATORD[i])); |
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} |
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} else { |
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printf("\n%s %s %s%s", VOIDID, ofun[PAT_BDATA].funame, |
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il->matname, DSTSUF); |
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printf("\n5 noneg"); |
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dfp = dfopen(il, 0); |
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fprintf(dfp, "2\n%f %f %d\n%f %f %d\n", |
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1.+.5/n, .5/n, n+1, |
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0., 2.*PI, m+1); |
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brightout(Ninv, 1, m, 1./il->nsamps/brt(il->col), dfp); |
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brightout(da, n, m, 1./il->nsamps/brt(il->col), dfp); |
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fputeol(dfp); |
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fclose(dfp); |
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printf(" %s", dfname(il, 0)); |
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} |
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printf("\n\t%s il_alth il_azih", FNCFNM); |
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printf("\n0\n9\n"); |
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printf("\t%f\t%f\t%f\n", u[0], u[1], u[2]); |
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printf("\t%f\t%f\t%f\n", v[0], v[1], v[2]); |
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printf("\t%f\t%f\t%f\n", w[0], w[1], w[2]); |
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il->dfnum++; |
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free((void *)Ninv); |
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} |
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|
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|
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extern void |
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roundout( /* write spherical distribution */ |
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struct illum_args *il, |
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float *da, |
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int n, |
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int m |
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) |
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{ |
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float *Ninv, *Sinv; |
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FILE *dfp; |
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int i; |
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|
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if ((Ninv = (float *)malloc(3*m*sizeof(float))) == NULL || |
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(Sinv = (float *)malloc(3*m*sizeof(float))) == NULL) |
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error(SYSTEM, "out of memory in roundout"); |
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compinv(Ninv, da, m); |
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compinv(Sinv, da+3*m*(n-1), m); |
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if (il->flags & IL_COLDST) { |
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printf("\n%s %s %s%s", VOIDID, ofun[PAT_CDATA].funame, |
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il->matname, DSTSUF); |
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printf("\n9 red green blue"); |
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for (i = 0; i < 3; i++) { |
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dfp = dfopen(il, DATORD[i]); |
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fprintf(dfp, "2\n%f %f %d\n%f %f %d\n", |
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1.+1./n, -1.-1./n, n+2, |
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0., 2.*PI, m+1); |
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colorout(i, Ninv, 1, m, 1./il->nsamps/il->col[i], dfp); |
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colorout(i, da, n, m, 1./il->nsamps/il->col[i], dfp); |
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colorout(i, Sinv, 1, m, 1./il->nsamps/il->col[i], dfp); |
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fputeol(dfp); |
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fclose(dfp); |
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printf(" %s", dfname(il, DATORD[i])); |
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} |
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} else { |
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printf("\n%s %s %s%s", VOIDID, ofun[PAT_BDATA].funame, |
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il->matname, DSTSUF); |
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printf("\n5 noneg"); |
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dfp = dfopen(il, 0); |
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fprintf(dfp, "2\n%f %f %d\n%f %f %d\n", |
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1.+1./n, -1.-1./n, n+2, |
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0., 2.*PI, m+1); |
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brightout(Ninv, 1, m, 1./il->nsamps/brt(il->col), dfp); |
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brightout(da, n, m, 1./il->nsamps/brt(il->col), dfp); |
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brightout(Sinv, 1, m, 1./il->nsamps/brt(il->col), dfp); |
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fputeol(dfp); |
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fclose(dfp); |
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printf(" %s", dfname(il, 0)); |
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} |
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printf("\n\t%s il_alt il_azi", FNCFNM); |
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printf("\n0\n0\n"); |
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il->dfnum++; |
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free((void *)Ninv); |
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free((void *)Sinv); |
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} |
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|
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|
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extern void |
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illumout( /* print illum object */ |
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register struct illum_args *il, |
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OBJREC *ob |
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) |
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{ |
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double cout[3]; |
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|
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if (il->sampdens <= 0) |
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printf("\n%s ", VOIDID); |
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else |
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printf("\n%s%s ", il->matname, DSTSUF); |
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printf("%s %s", ofun[il->flags&IL_LIGHT?MAT_LIGHT:MAT_ILLUM].funame, |
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il->matname); |
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if (il->flags & IL_LIGHT || !strcmp(il->altmat,VOIDID)) |
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printf("\n0"); |
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else |
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printf("\n1 %s", il->altmat); |
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if (il->flags & IL_COLAVG) { |
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cout[0] = il->col[0]; |
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cout[1] = il->col[1]; |
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cout[2] = il->col[2]; |
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} else { |
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cout[0] = cout[1] = cout[2] = brt(il->col); |
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} |
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printf("\n0\n3 %f %f %f\n", cout[0], cout[1], cout[2]); |
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|
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printobj(il->matname, ob); |
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} |
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|
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|
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void |
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compavg( /* compute average for set of data values */ |
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float col[3], |
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register float *da, |
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int n |
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) |
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{ |
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register int i; |
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|
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col[0] = col[1] = col[2] = 0.; |
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i = n; |
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while (i-- > 0) { |
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col[0] += *da++; |
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col[1] += *da++; |
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col[2] += *da++; |
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} |
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for (i = 0; i < 3; i++) |
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col[i] /= (double)n; |
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} |
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|
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|
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void |
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compinv( /* compute other side of row average */ |
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register float *rinv, |
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register float *rp, |
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int m |
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) |
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{ |
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float avg[3]; |
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|
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compavg(avg, rp, m); /* row average */ |
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while (m-- > 0) { |
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*rinv++ = 2.*avg[0] - *rp++; |
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*rinv++ = 2.*avg[1] - *rp++; |
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*rinv++ = 2.*avg[2] - *rp++; |
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} |
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} |
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|
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|
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extern int |
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average( /* evaluate average value for distribution */ |
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register struct illum_args *il, |
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float *da, |
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int n |
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) |
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{ |
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compavg(il->col, da, n); /* average */ |
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if (il->nsamps > 1) { |
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il->col[0] /= (double)il->nsamps; |
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il->col[1] /= (double)il->nsamps; |
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il->col[2] /= (double)il->nsamps; |
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} |
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/* brighter than minimum? */ |
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return(brt(il->col) > il->minbrt+FTINY); |
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} |
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|
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|
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static int colmcnt = 0; /* count of columns written */ |
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|
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void |
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fputnum( /* put out a number to fp */ |
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double d, |
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FILE *fp |
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) |
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{ |
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if (colmcnt++ % 5 == 0) |
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putc('\n', fp); |
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fprintf(fp, " %11e", d); |
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} |
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|
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|
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void |
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fputeol( /* write end of line to fp */ |
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register FILE *fp |
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) |
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{ |
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putc('\n', fp); |
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colmcnt = 0; |
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} |
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|
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|
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void |
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colorout( /* put out color distribution data */ |
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int p, |
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register float *da, |
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int n, |
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int m, |
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double mult, |
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FILE *fp |
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) |
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{ |
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register int i, j; |
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|
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for (i = 0; i < n; i++) { |
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for (j = 0; j < m; j++) { |
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fputnum(mult*da[p], fp); |
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da += 3; |
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} |
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fputnum(mult*da[p-3*m], fp); /* wrap phi */ |
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} |
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} |
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|
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|
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void |
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brightout( /* put out brightness distribution data */ |
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register float *da, |
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int n, |
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int m, |
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double mult, |
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FILE *fp |
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) |
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{ |
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register int i, j; |
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|
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for (i = 0; i < n; i++) { |
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for (j = 0; j < m; j++) { |
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fputnum(mult*brt(da), fp); |
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da += 3; |
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} |
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fputnum(mult*brt(da-3*m), fp); /* wrap phi */ |
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} |
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} |
