--- ray/src/util/glare.h	1991/03/19 17:31:35	1.7
+++ ray/src/util/glare.h	2004/01/02 12:51:54	2.6
@@ -1,23 +1,34 @@
-/* Copyright (c) 1991 Regents of the University of California */
-
-/* SCCSid "$SunId$ LBL" */
-
+/* RCSid: $Id: glare.h,v 2.6 2004/01/02 12:51:54 schorsch Exp $ */
 /*
  * Common data structures for glare source finding routines
  */
+#ifndef _RAD_GLARE_H_
+#define _RAD_GLARE_H_
 
 #include "standard.h"
 #include "view.h"
 #include "color.h"
 #include "setscan.h"
 
-#define GLAREBR		10.0		/* glare source is this * avg. lum. */
+#ifdef __cplusplus
+extern "C" {
+#endif
 
-#define SAMPDENS	50		/* default samples per unit in image */
+#define GLAREBR		7.0		/* glare source is this * avg. lum. */
+
+#define SAMPDENS	75		/* default samples per unit in image */
 #define TSAMPSTEP	10		/* sample step to compute threshold */
 
-#define SEPS		2		/* sources this close ==> contig. */
+#define SEPS		1		/* sources this close ==> contig. */
 
+#define SAMIN		.005		/* minimum solid angle for source */
+#define MAXBUDDY	(4.*sqrt(SAMIN/PI))	/* max separation for pairing */
+
+#define TOOSMALL(s)	((s)->brt*(s)->dom < threshold*SAMIN)
+
+#define SABIG		.025		/* solid angle of splittable source */
+#define LCORR		.12		/* linearity of splittable source */
+
 extern VIEW	ourview;		/* our view */
 extern VIEW	pictview;		/* picture view */
 extern VIEW	leftview, rightview;	/* leftmost and rightmost views */
@@ -32,18 +43,19 @@ extern ANGLE	glarang[];		/* glare calculation angles *
 extern int	nglarangs;
 extern double	maxtheta;		/* maximum glare angle (in radians) */
 extern int	hsize;			/* horizontal size */
-extern int	hlim;			/* horizontal limit of central view */
 
 #define nglardirs	(2*nglarangs+1)
 #define vsize		(sampdens-1)
-#define h_theta(h)	(-(double)(h)/(double)sampdens)
+#define hscale(v)	sqrt((double)(sampdens*sampdens - (v)*(v)))
+#define hlim(v)		(int)(maxtheta*hscale(v))
+#define h_theta(h,v)	(-(h)/hscale(v))
 
 extern struct illum {
 	float	theta;		/* glare direction */
 	float	lcos, lsin;	/* cosine and sine to left view */
 	float	rcos, rsin;	/* cosine and sine to right view */
 	double	sum;		/* sum of indirect luminances */
-	int	n;		/* number of values in sum */
+	double	n;		/* number of values in sum */
 } *indirect;		/* array of indirect illuminances */
 
 struct srcspan {
@@ -61,4 +73,28 @@ extern struct source {
 	struct source	*next;	/* next source in list */
 } *donelist;			/* finished sources */
 
-extern double	getviewpix();
+
+extern long	npixinvw;	/* number of samples in view */
+extern long	npixmiss;	/* number of samples missing */
+
+	/* defined in findglare.c */;
+extern void memerr(char	*s);
+extern int compdir(FVECT vd, int x, int y);
+extern double pixsize(int x, int y);
+	/* defined in glaresrc.c */
+extern void comp_thresh(void);
+extern void analyze(void);
+extern void absorb_specks(void);
+	/* defined in glareval.c */
+extern void open_pict(char *fn);
+extern void fork_rtrace(char *av[]);
+extern void close_pict(void);
+extern void done_rtrace(void);
+extern void getviewspan(int vv, float *vb);
+extern double getviewpix(int vh, int vv);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _RAD_GLARE_H_ */
+