--- ray/src/rt/source.h	2020/12/17 03:30:37	2.22
+++ ray/src/rt/source.h	2025/10/22 16:39:58	2.28
@@ -1,4 +1,4 @@
-/* RCSid $Id: source.h,v 2.22 2020/12/17 03:30:37 greg Exp $ */
+/* RCSid $Id: source.h,v 2.28 2025/10/22 16:39:58 greg Exp $ */
 /*
  *  source.h - header file for ray tracing sources.
  *
@@ -72,7 +72,7 @@ typedef struct {
 	} sa;			/* source aiming information */
 	unsigned long
 		ntests, nhits;	/* shadow tests and hits */
-#ifdef  SHADCACHE
+#if  SHADCACHE
 	OBSCACHE  *obscache;    /* obstructor cache */
 #endif
 	int  sflags;		/* source flags */
@@ -117,16 +117,16 @@ typedef struct {
  *				i passed to vproj runs from 0 to nproj-1.
  */
 
-typedef struct {
-	int  (*vproj)();	/* project virtual sources */
+typedef struct {		/* project virtual sources */
+	int  (*vproj)(MAT4,OBJREC*,SRCREC*,int);
 	int  nproj;		/* number of possible projections */
 } VSMATERIAL;		/* virtual source material functions */
 
 typedef struct {
-	void	(*setsrc)();	/* set light source for object */
-	void	(*partit)();	/* partition light source object */
-	double  (*getpleq)();	/* plane equation for surface */
-	double  (*getdisk)();	/* maximum disk for surface */
+	void	(*setsrc)(SRCREC*,OBJREC*);	/* set light source for object */
+	void	(*partit)(SRCINDEX*,RAY*);	/* partition light source object */
+	double  (*getpleq)(FVECT,OBJREC*);	/* plane equation for surface */
+	double  (*getdisk)(FVECT,OBJREC*);	/* maximum disk for surface */
 } SOBJECT;		/* source object functions */
 
 typedef union {
@@ -152,7 +152,7 @@ extern void	freesources(void);
 extern int	srcray(RAY *sr, RAY *r, SRCINDEX *si);
 extern void	srcvalue(RAY *r);
 extern int	sourcehit(RAY *r);
-typedef void srcdirf_t(COLOR cv, void *np, FVECT ldir, double omega);
+typedef void srcdirf_t(SCOLOR cv, void *np, FVECT ldir, double omega);
 extern void	direct(RAY *r, srcdirf_t *f, void *p);
 extern void	srcscatter(RAY *r);
 extern int	m_light(OBJREC *m, RAY *r);
@@ -163,12 +163,21 @@ extern int      srcblocked(RAY *r);
 extern void     freeobscache(SRCREC *s);
 extern void	markclip(OBJREC *m);
 					/* defined in srcsamp.c */
+extern int	srcskip(int sn, RAY *r);
 extern double	nextssamp(RAY *r, SRCINDEX *si);
 extern int	skipparts(int ct[3], int sz[3], int pp[2], unsigned char *pt);
 extern void	nopart(SRCINDEX *si, RAY *r);
 extern void	cylpart(SRCINDEX *si, RAY *r);
 extern void	flatpart(SRCINDEX *si, RAY *r);
 extern double	scylform(int sn, FVECT dir);
+					/* defined in srcskipload.c */
+extern int	sskip_dim[2];		/* source skip image size */
+extern int	srcskip_open(char *bmpspec, char *scorrimg);
+extern int	srcskip_getrow(int row, int *sndx, float *scorr);
+extern int	*srcskip_ndxmap(void);
+extern float	*srcskip_corrmap(void);
+extern void	srcskip_close(void);
+extern void	srcskip_free_maps(void);
 					/* defined in srcsupp.c */
 extern void	initstypes(void);
 extern int	newsource(void);