--- ray/src/rt/p_data.c	2003/03/05 16:16:53	2.7
+++ ray/src/rt/p_data.c	2014/07/08 18:25:00	2.9
@@ -1,5 +1,5 @@
 #ifndef lint
-static const char	RCSid[] = "$Id: p_data.c,v 2.7 2003/03/05 16:16:53 greg Exp $";
+static const char	RCSid[] = "$Id: p_data.c,v 2.9 2014/07/08 18:25:00 greg Exp $";
 #endif
 /*
  *  p_data.c - routine for stored patterns.
@@ -8,10 +8,9 @@ static const char	RCSid[] = "$Id: p_data.c,v 2.7 2003/
 #include "copyright.h"
 
 #include  "ray.h"
-
 #include  "data.h"
-
 #include  "func.h"
+#include  "rtotypes.h"
 
 /*
  *	A stored pattern can either be brightness or
@@ -47,15 +46,17 @@ static const char	RCSid[] = "$Id: p_data.c,v 2.7 2003/
  */
 
 
-p_bdata(m, r)			/* interpolate brightness data */
-register OBJREC  *m;
-RAY  *r;
+int
+p_bdata(			/* interpolate brightness data */
+	OBJREC  *m,
+	RAY  *r
+)
 {
 	double  bval;
 	double  pt[MAXDIM];
 	DATARRAY  *dp;
-	register MFUNC  *mf;
-	register int  i;
+	MFUNC  *mf;
+	int  i;
 
 	if (m->oargs.nsargs < 4)
 		objerror(m, USER, "bad # arguments");
@@ -82,17 +83,19 @@ computerr:
 }
 
 
-p_cdata(m, r)			/* interpolate color data */
-register OBJREC  *m;
-RAY  *r;
+int
+p_cdata(			/* interpolate color data */
+	OBJREC  *m,
+	RAY  *r
+)
 {
 	double  col[3];
 	COLOR  cval;
 	double  pt[MAXDIM];
 	int  nv;
 	DATARRAY  *dp;
-	register MFUNC  *mf;
-	register int  i;
+	MFUNC  *mf;
+	int  i;
 
 	if (m->oargs.nsargs < 8)
 		objerror(m, USER, "bad # arguments");
@@ -129,16 +132,18 @@ computerr:
 }
 
 
-p_pdata(m, r)			/* interpolate picture data */
-register OBJREC  *m;
-RAY  *r;
+int
+p_pdata(			/* interpolate picture data */
+	OBJREC  *m,
+	RAY  *r
+)
 {
 	double  col[3];
 	COLOR  cval;
 	double  pt[2];
 	DATARRAY  *dp;
-	register MFUNC  *mf;
-	register int  i;
+	MFUNC  *mf;
+	int  i;
 
 	if (m->oargs.nsargs < 7)
 		objerror(m, USER, "bad # arguments");