--- ray/src/hd/rhd_geom.c	1998/12/20 20:35:43	3.2
+++ ray/src/hd/rhd_geom.c	2003/06/26 00:58:10	3.11
@@ -1,9 +1,6 @@
-/* Copyright (c) 1998 Silicon Graphics, Inc. */
-
 #ifndef lint
-static char SCCSid[] = "$SunId$ SGI";
+static const char	RCSid[] = "$Id: rhd_geom.c,v 3.11 2003/06/26 00:58:10 schorsch Exp $";
 #endif
-
 /*
  * Geometry drawing operations for OpenGL driver.
  */
@@ -19,21 +16,23 @@ static char SCCSid[] = "$SunId$ SGI";
 #endif
 
 int	gmPortals = 0;			/* current portal GL list id */
+static int	Nlists = 0;		/* number of lists allocated */
 static char	*curportlist[MAXPORT];	/* current portal list */
 static char	*newportlist[MAXPORT];	/* new portal file list */
 
 static struct gmEntry {
 	char	*gfile;			/* geometry file name */
 	FVECT	cent;			/* centroid */
-	FLOAT	rad;			/* radius */
+	RREAL	rad;			/* radius */
 	int	listid;			/* display list identifier */
+	int	nlists;			/* number of lists allocated */
 } gmCurrent[MAXGEO], gmNext[MAXGEO];	/* current and next list */
 
 #define FORALLGEOM(ot,i)	for (i=0;i<MAXGEO&&ot[i].gfile!=NULL;i++)
 
 #define FORALLPORT(pl,i)		for (i=0;i<MAXPORT&&pl[i]!=NULL;i++)
 
-extern char	*atos(), *sskip(), *sskip2();
+extern char	*nextword();
 
 
 gmNewGeom(file)			/* add new geometry to next list */
@@ -55,10 +54,12 @@ char	*file;
 			return;
 		}
 					/* else load new octree */
-	gmNext[i].gfile = file;
+	gmNext[i].gfile = savestr(file);
 	dolights = 0;
 	domats = 1;
-	gmNext[i].listid = rgl_octlist(file, gmNext[i].cent, &gmNext[i].rad);
+	gmNext[i].listid = rgl_octlist(file, gmNext[i].cent, &gmNext[i].rad,
+					&gmNext[i].nlists);
+	gmNext[i].rad *= 1.732;		/* go to corners */
 #ifdef DEBUG
 	fprintf(stderr, "Loaded octree \"%s\" into listID %d with radius %f\n",
 			file, gmNext[i].listid, gmNext[i].rad);
@@ -74,33 +75,46 @@ gmEndGeom()			/* make next list current */
 		FORALLGEOM(gmNext, j)
 			if (gmNext[j].listid == gmCurrent[i].listid)
 				break;
-		if (j >= MAXGEO || gmNext[j].gfile == NULL)
-			glDeleteLists(gmCurrent[i].listid, 1);	/* not found */
+		if (j >= MAXGEO || gmNext[j].gfile == NULL) {
+			glDeleteLists(gmCurrent[i].listid,	/* not found */
+					gmCurrent[i].nlists);
+			freestr(gmCurrent[i].gfile);
+		}
 	}
-	bcopy((char *)gmNext, (char *)gmCurrent, sizeof(gmNext));
-	bzero((char *)gmNext, sizeof(gmNext));
+	bcopy((void *)gmNext, (void *)gmCurrent, sizeof(gmNext));
+	bzero((void *)gmNext, sizeof(gmNext));
 }
 
 
 int
-gmDrawGeom(clearports)		/* draw current list of octrees (and ports) */
-int	clearports;
+gmDrawGeom()			/* draw current list of octrees */
 {
 	register int	n;
 
 	FORALLGEOM(gmCurrent, n)
 		glCallList(gmCurrent[n].listid);
-	if (!n | !clearports | !gmPortals)
-		return(n);
-				/* mark alpha channel over the portals */
-	glPushAttrib(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT);
+	return(n);
+}
+
+
+gmDrawPortals(r, g, b, a)	/* draw portals with specific RGBA value */
+int	r, g, b, a;
+{
+	if (!gmPortals || r<0 & g<0 & b<0 & a<0)
+		return;
+	glPushAttrib(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT|
+			GL_POLYGON_BIT|GL_LIGHTING_BIT);
+	glDisable(GL_LIGHTING);
+	glDisable(GL_DITHER);
+	glShadeModel(GL_FLAT);
+	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+					/* don't actually write depth */
 	glDepthMask(GL_FALSE);
-	glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_TRUE);
-	glClear(GL_COLOR_BUFFER_BIT);
-	glColor4ub(0, 0, 0, 0xff);	/* write alpha buffer as mask */
+					/* draw only selected channels */
+	glColorMask(r>=0, g>=0, b>=0, a>=0);
+	glColor4ub(r&0xff, g&0xff, b&0xff, a&0xff);
 	glCallList(gmPortals);		/* draw them portals */
 	glPopAttrib();
-	return(n);
 }
 
 
@@ -134,11 +148,7 @@ char	*pflist;
 
 	if (pflist == NULL)
 		return;
-	while (*pflist) {
-		atos(newfile, sizeof(newfile), pflist);
-		if (!*newfile)
-			break;
-		pflist = sskip(pflist);
+	while ((pflist = nextword(newfile, sizeof(newfile), pflist)) != NULL) {
 		FORALLPORT(newportlist,i)
 			if (!strcmp(newportlist[i], newfile))
 				goto endloop;	/* in list already */
@@ -168,7 +178,7 @@ gmEndPortal()			/* close portal list and return GL lis
 	FORALLPORT(newportlist, n);
 	if (!n) {			/* free old GL list */
 		if (gmPortals)
-			glDeleteLists(gmPortals, 1);
+			glDeleteLists(gmPortals, Nlists);
 		gmPortals = 0;
 	} else
 		qsort(newportlist, n, sizeof(char *), sstrcmp);
@@ -181,12 +191,12 @@ gmEndPortal()			/* close portal list and return GL lis
 			FORALLPORT(newportlist, n);
 			dolights = 0;
 			domats = 0;
-			gmPortals = rgl_filelist(n, newportlist);
+			gmPortals = rgl_filelist(n, newportlist, &Nlists);
 			break;
 		}
 	FORALLPORT(curportlist, n)		/* free old file list */
 		freestr(curportlist[n]);
-	bcopy((char *)newportlist, (char *)curportlist, sizeof(newportlist));
-	bzero((char *)newportlist, sizeof(newportlist));
+	bcopy((void *)newportlist, (void *)curportlist, sizeof(newportlist));
+	bzero((void *)newportlist, sizeof(newportlist));
 	return(gmPortals);			/* return GL list id */
 }