--- ray/src/hd/rhdisp.h	1997/11/26 21:34:27	3.5
+++ ray/src/hd/rhdisp.h	2004/01/01 11:21:55	3.16
@@ -1,11 +1,16 @@
-/* Copyright (c) 1997 Silicon Graphics, Inc. */
-
-/* SCCSid "$SunId$ SGI" */
-
+/* RCSid: $Id: rhdisp.h,v 3.16 2004/01/01 11:21:55 schorsch Exp $ */
 /*
  * Header for holodeck display drivers.
  */
+#ifndef _RAD_RHDISP_H_
+#define _RAD_RHDISP_H_
 
+#include "color.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 				/* display requests */
 #define DR_NOOP		0		/* to release from vain DR_ATTEN */
 #define DR_BUNDLE	1		/* lone bundle request */
@@ -13,16 +18,22 @@
 #define DR_SHUTDOWN	3		/* shutdown request */
 #define DR_NEWSET	4		/* new bundle set */
 #define DR_ADDSET	5		/* add to current set */
-#define	DR_ADJSET	6		/* adjust set quantities */
+#define DR_ADJSET	6		/* adjust set quantities */
 #define DR_DELSET	7		/* delete from current set */
+#define DR_KILL		8		/* kill rtrace process(es) */
+#define DR_RESTART	9		/* restart rtrace */
+#define DR_CLOBBER	10		/* clobber holodeck */
+#define DR_VIEWPOINT	11		/* set desired eye position */
 
 				/* server responses */
-#define DS_BUNDLE	8		/* computed bundle */
-#define DS_ACKNOW	9		/* acknowledge request for attention */
-#define DS_SHUTDOWN	10		/* end process and close connection */
-#define DS_ADDHOLO	11		/* register new holodeck */
-#define DS_STARTIMM	12		/* begin immediate bundle set */
-#define DS_ENDIMM	13		/* end immediate bundle set */
+#define DS_BUNDLE	32		/* computed bundle */
+#define DS_ACKNOW	33		/* acknowledge request for attention */
+#define DS_SHUTDOWN	34		/* end process and close connection */
+#define DS_ADDHOLO	35		/* register new holodeck */
+#define DS_STARTIMM	36		/* begin immediate bundle set */
+#define DS_ENDIMM	37		/* end immediate bundle set */
+#define DS_OUTSECT	38		/* render from outside sections */
+#define DS_EYESEP	39		/* eye separation distance */
 
 /*
  * Normally, the server channel has priority, with the display process
@@ -39,6 +50,41 @@
 #endif
 
 typedef struct {
-	int2	type;		/* message type */
-	int4	nbytes;		/* number of additional bytes */
+	int16	type;		/* message type */
+	int32	nbytes;		/* number of additional bytes */
 } MSGHEAD;		/* message head */
+
+/*
+ * The display process is started with three arguments.  The first argument
+ * is the short name of the holodeck file, appropriate for window naming, etc.
+ * The second and third arguments are the file descriptor numbers assigned to
+ * the server's standard output and input, respectively.  The stdin and stdout
+ * of the display process are used for normal communication with the server,
+ * and are connected to pipes going each way.  It is entirely appropriate
+ * for the display process to borrow the server's stdin and stdout for reading
+ * and writing user commands from the list in rhdriver.h.  If standard input
+ * is not available for reading, then a descriptor of -1 will be passed.
+ * The standard output will always be available for writing, though it
+ * may go to /dev/null.
+ */
+
+
+	/* rhdisp.c */
+extern void serv_request(int type, int nbytes, char *p);
+extern int serv_result(void);
+	/* rhdisp2.c */
+extern int beam_sync(int all);
+extern void beam_init(int fresh);
+//extern int16 * beam_view(VIEW *vn, int hr, int vr);
+	/* rhdisp2.c, rhdisp3.c */
+extern void gridlines(void (*f)(FVECT wp[2]));
+	/* rhd_ctab.c */
+extern int new_ctab(int ncolors);
+extern int get_pixel(BYTE rgb[3], void (*set_pixel)(int h, int r, int g, int b));
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _RAD_RHDISP_H_ */
+