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/* Copyright (c) 1990 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Load lamp data. |
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*/ |
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#include "copyright.h" |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <ctype.h> |
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extern char *eindex(), *expsave(), *malloc(); |
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extern FILE *fropen(); |
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#include "standard.h" |
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#include "color.h" |
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extern char *eindex(), *expsave(); |
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extern FILE *frlibopen(); |
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typedef struct lamp { |
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char *pattern; /* search pattern */ |
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float *color; /* pointer to lamp value */ |
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float * |
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matchlamp(s) /* see if string matches any lamp */ |
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char *s; |
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matchlamp( /* see if string matches any lamp */ |
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char *s |
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) |
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{ |
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register LAMP *lp; |
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} |
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loadlamps(file) /* load lamp type file */ |
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char *file; |
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int |
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loadlamps( /* load lamp type file */ |
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char *file |
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) |
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{ |
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LAMP *lastp; |
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register LAMP *lp; |
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char buf[128], str[128]; |
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register char *cp1, *cp2; |
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if ((fp = fropen(file)) == NULL) |
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if ((fp = frlibopen(file)) == NULL) |
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return(0); |
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lastp = NULL; |
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while (fgets(buf, sizeof(buf), fp) != NULL) { |
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goto fmterr; |
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} |
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} else { /* or read specificaion */ |
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if ((lp->color=(float *)malloc(3*sizeof(float)))==NULL) |
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if ((lp->color=(float *)malloc(6*sizeof(float)))==NULL) |
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goto memerr; |
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if (sscanf(cp1, "%f %f %f", &lp->color[0], & |
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lp->color[1], &lp->color[2]) != 3) { |
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if (sscanf(cp1, "%f %f %f", &lp->color[3], & |
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lp->color[4], &lp->color[5]) != 3) { |
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cp1 = "bad lamp data"; |
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goto fmterr; |
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} |
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/* convert xyY to XYZ */ |
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xyz[1] = lp->color[2]; |
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xyz[0] = lp->color[0]/lp->color[1] * xyz[1]; |
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xyz[2] = xyz[1]*(1./lp->color[1] - 1.) - xyz[0]; |
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xyz[1] = lp->color[5]; |
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xyz[0] = lp->color[3]/lp->color[4] * xyz[1]; |
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xyz[2] = xyz[1]*(1./lp->color[4] - 1.) - xyz[0]; |
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/* XYZ to RGB */ |
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cie_rgb(lp->color, xyz); |
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} |
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} |
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freelamps() /* free our lamps list */ |
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void |
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freelamps(void) /* free our lamps list */ |
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{ |
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register LAMP *lp1, *lp2; |
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for (lp1 = lamps; lp1 != NULL; lp1 = lp1->next) { |
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for (lp1 = lamps; lp1 != NULL; lp1 = lp2) { |
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free(lp1->pattern); |
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if (lp1->color != NULL) { |
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for (lp2 = lp1->next; lp2 != NULL; lp2 = lp2->next) |
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if (lp2->color == lp1->color) |
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lp2->color = NULL; |
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free((char *)lp1->color); |
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free((void *)lp1->color); |
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} |
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free((char *)lp1); |
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lp2 = lp1->next; |
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free((void *)lp1); |
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} |
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lamps = NULL; |
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} |
