--- ray/src/px/pic.h	2003/07/14 22:24:00	2.3
+++ ray/src/px/pic.h	2004/03/28 20:33:14	2.4
@@ -1,4 +1,4 @@
-/* RCSid: $Id: pic.h,v 2.3 2003/07/14 22:24:00 schorsch Exp $ */
+/* RCSid: $Id: pic.h,v 2.4 2004/03/28 20:33:14 schorsch Exp $ */
 /* the following three structures are used by ciq */
 
 #ifndef _RAD_PIC_H_
@@ -20,6 +20,26 @@ typedef struct {
 
 /* image resolution */
 extern int	xmax,ymax;
+
+	/* defined in closest.c */
+extern void initializeclosest(void);
+extern int closest(int r, int g, int b);
+
+	/* defined in cut.c */
+extern int makecm(int nw, int *na);
+
+	/* defined in ciq.c */
+extern void ciq(int dith, int nw, int synth, colormap cm);
+
+	/* defined in biq.c */
+extern void biq(int dith, int nw, int synth, colormap cm);
+
+	/* defined in in the calling program */
+extern void picreadcm(colormap  map);
+extern void picwritecm(colormap  cm);
+extern void picwriteline(int  y, pixel  *l);
+extern void picreadline3(int  y, rgbpixel  *l3);
+
 
 #ifdef __cplusplus
 }