x11vnc: fix failure of -8to24 on default depth 24 due to

nonstandard indexed color support changes.  Fix small window
for failure after XSendEvent selection call; add env var.
X11VNC_SENDEVENT_SYNC=1 to take even more care.

x11vnc/8to24.c

@@ -79,7 +79,9 @@ static void set_root_cmap(void) {
 
 	RAWFB_RET_VOID
 
-	if (depth > 8) {
+	if (depth > 16) {
+		ncolor = NCOLOR;
+	} else if (depth > 8) {
 		ncolor = 1 << depth;
 	} else {
 		ncolor = NCOLOR;
@@ -255,7 +257,7 @@ static void set_poll_fb(void) {
 		return;		/* this saves a bit of RAM */
 	}
 	pfb(4, &poll24_fb, &poll24_fb_w, &poll24_fb_h);
-	if (depth > 8) {
+	if (depth > 8 && depth <= 16) {
 		pfb(2, &poll8_fb,  &poll8_fb_w,  &poll8_fb_h);	/* 2X for rare 16bpp colormap case */
 	} else {
 		pfb(1, &poll8_fb,  &poll8_fb_w,  &poll8_fb_h);
@@ -333,7 +335,7 @@ if (db24 > 2) fprintf(stderr, " check_for_multivis: %.4f\n", now - last_call);
 		if (stack_old) {
 			free(stack_old);
 		}
-		stack_old = (Window *) malloc(n*sizeof(Window));
+		stack_old = (Window *) calloc(n*sizeof(Window), 1);
 		stack_old_len = n;
 	}
 
@@ -1340,7 +1342,10 @@ static int get_cmap(int j, Colormap cmap) {
 
 	RAWFB_RET(0)
 
-	if (depth > 8) {
+	if (depth > 16) {
+		/* 24 */
+		ncolor = NCOLOR;
+	} else if (depth > 8) {
 		ncolor = 1 << depth;
 	} else {
 		ncolor = NCOLOR;
@@ -1362,9 +1367,10 @@ static int get_cmap(int j, Colormap cmap) {
 	} else {
 		ncells = NCOLOR;
 	}
-if (db24 > 1) fprintf(stderr, "get_cmap: %d 0x%x\n", j, (unsigned int) cmap);
 
-	if (ncells > ncolor) {
+	if (depth > 16) {
+		;
+	} else if (ncells > ncolor) {
 		ncells = ncolor;
 	} else if (ncells == 8 && depth != 3) {
 		/* XXX. see set_colormap() */
@@ -1376,6 +1382,7 @@ if (db24 > 1) fprintf(stderr, "get_cmap: %d 0x%x\n", j, (unsigned int) cmap);
 		color[j][i].pixel = i;
 		color[j][i].pad = 0;
 	}
+if (db24 > 1) fprintf(stderr, "get_cmap: %d 0x%x ncolor=%d ncells=%d\n", j, (unsigned int) cmap, ncolor, ncells);
 
 	/* try to query the colormap, trap errors */
 	X_LOCK;

x11vnc/ChangeLog

+2009-01-10  Karl Runge <runge@karlrunge.com>
+	* x11vnc: fix failure of -8to24 on default depth 24 due to 
+	  nonstandard indexed color support changes.  Fix small window
+	  for failure after XSendEvent selection call; add env var.
+	  X11VNC_SENDEVENT_SYNC=1 to take even more care.
+
 2009-01-03  Karl Runge <runge@karlrunge.com>
 	* x11vnc: add -rmflag option, -rawfb vt support, bpp < 8 support
 	  for rawfb, find /dev/video better. Fix reverse SSL connection

x11vnc/README

 
-x11vnc README file                         Date: Sat Jan  3 23:43:28 EST 2009
+x11vnc README file                         Date: Wed Jan  7 21:16:30 EST 2009
 
 The following information is taken from these URLs:
 
@@ -12266,7 +12266,7 @@ x11vnc: a VNC server for real X displays
    Here are all of x11vnc command line options:
 % x11vnc -opts      (see below for -help long descriptions)
 
-x11vnc: allow VNC connections to real X11 displays. 0.9.7 lastmod: 2009-01-03
+x11vnc: allow VNC connections to real X11 displays. 0.9.7 lastmod: 2009-01-07
 
 x11vnc options:
   -display disp            -auth file               -N                     
@@ -12390,7 +12390,7 @@ libvncserver-tight-extension options:
 
 % x11vnc -help
 
-x11vnc: allow VNC connections to real X11 displays. 0.9.7 lastmod: 2009-01-03
+x11vnc: allow VNC connections to real X11 displays. 0.9.7 lastmod: 2009-01-07
 
 (type "x11vnc -opts" to just list the options.)
 

x11vnc/screen.c

@@ -194,7 +194,9 @@ void set_colormap(int reset) {
 	}
 
 	if (init) {
-		if (depth > 8) {
+		if (depth > 16) {
+			ncolor = NCOLOR;
+		} else if (depth > 8) {
 			ncolor = 1 << depth;
 		} else {
 			ncolor = NCOLOR;

x11vnc/selection.c

@@ -63,6 +63,7 @@ void selection_request(XEvent *ev, char *type) {
 	unsigned int length;
 	unsigned char *data;
 	static Atom xa_targets = None;
+	static int sync_it = -1;
 # ifndef XA_LENGTH
 	unsigned long XA_LENGTH;
 # endif
@@ -72,6 +73,14 @@ void selection_request(XEvent *ev, char *type) {
 	XA_LENGTH = XInternAtom(dpy, "LENGTH", True);
 # endif
 
+	if (sync_it < 0) {
+		if (getenv("X11VNC_SENDEVENT_SYNC")) {
+			sync_it = 1;
+		} else {
+			sync_it = 0;
+		}
+	}
+
 	req_event = &(ev->xselectionrequest);
 	notify_event.type 	= SelectionNotify;
 	notify_event.display	= req_event->display;
@@ -170,10 +179,16 @@ void selection_request(XEvent *ev, char *type) {
 		rfbLog("selection_request: ignored XError while sending "
 		    "%s selection to 0x%x.\n", type, req_event->requestor);
 	}
+
+	XFlush_wr(dpy);
+	if (sync_it) {
+		usleep(5 * 1000);
+		XSync(dpy, False);
+	}
+
 	XSetErrorHandler(old_handler);
 	trapped_xerror = 0;
 
-	XFlush_wr(dpy);
 #endif	/* NO_X11 */
 }
 

x11vnc/x11vnc.1

@@ -2,7 +2,7 @@
 .TH X11VNC "1" "January 2009" "x11vnc " "User Commands"
 .SH NAME
 x11vnc - allow VNC connections to real X11 displays
-         version: 0.9.7, lastmod: 2009-01-03
+         version: 0.9.7, lastmod: 2009-01-07
 .SH SYNOPSIS
 .B x11vnc
 [OPTION]...

x11vnc/x11vnc_defs.c

@@ -15,7 +15,7 @@ int xtrap_base_event_type = 0;
 int xdamage_base_event_type = 0;
 
 /*               date +'lastmod: %Y-%m-%d' */
-char lastmod[] = "0.9.7 lastmod: 2009-01-03";
+char lastmod[] = "0.9.7 lastmod: 2009-01-07";
 
 /* X display info */
 

x11vnc/xrecord.c

@@ -135,8 +135,8 @@ static void xrecord_grabserver(int start) {
 		XSetErrorHandler(old_handler);
 		return;
 	}
-	XSetErrorHandler(old_handler);
 	XFlush_wr(gdpy_data);
+	XSetErrorHandler(old_handler);
 #else
 	if (!rc || !old_handler) {}
 #endif