From 27a884d2f3775cf4d97ea8f3d7433cbe2deebbfc Mon Sep 17 00:00:00 2001
From: runge <runge>
Date: Tue, 21 Nov 2006 22:16:23 +0000
Subject: x11vnc: Mac OS X fb fixes and cuttext, -nodpms option, local user
 wireframing

---
 x11vnc/pm.c | 96 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 94 insertions(+), 2 deletions(-)

(limited to 'x11vnc/pm.c')

diff --git a/x11vnc/pm.c b/x11vnc/pm.c
index 8ee0ebd..cb13ab1 100644
--- a/x11vnc/pm.c
+++ b/x11vnc/pm.c
@@ -4,14 +4,20 @@
 
 void check_pm(void);
 static void check_fbpm(void);
+static void check_dpms(void);
 
 #if LIBVNCSERVER_HAVE_FBPM
 #include <X11/Xmd.h>
 #include <X11/extensions/fbpm.h>
 #endif
 
+#if LIBVNCSERVER_HAVE_DPMS
+#include <X11/extensions/dpms.h>
+#endif
+
 void check_pm(void) {
 	check_fbpm();
+	check_dpms();
 	/* someday dpms activities? */
 }
 
@@ -20,7 +26,7 @@ static void check_fbpm(void) {
 #if LIBVNCSERVER_HAVE_FBPM
 	static int fbpm_capable = 0;
 	static time_t last_fbpm = 0;
-	int db = 1;
+	int db = 0;
 
 	CARD16 level;
 	BOOL enabled;
@@ -28,12 +34,15 @@ static void check_fbpm(void) {
 	RAWFB_RET_VOID
 
 	if (! init_fbpm) {
+		if (getenv("FBPM_DEBUG")) {
+			db = atoi(getenv("FBPM_DEBUG"));
+		}
 		if (FBPMCapable(dpy)) {
 			fbpm_capable = 1;
 			rfbLog("X display is capable of FBPM.\n");
 			if (watch_fbpm) {
 				rfbLog("Preventing low-power FBPM modes when"
-				    " VNC clients are connected.\n");
+				    " clients are connected.\n");
 			}
 		} else {
 			if (! raw_fb_str) {
@@ -95,3 +104,86 @@ static void check_fbpm(void) {
 #endif
 }
 
+static void check_dpms(void) {
+	static int init_dpms = 0;
+#if LIBVNCSERVER_HAVE_DPMS
+	static int dpms_capable = 0;
+	static time_t last_dpms = 0;
+	int db = 0;
+
+	CARD16 level;
+	BOOL enabled;
+
+	RAWFB_RET_VOID
+
+	if (! init_dpms) {
+		if (getenv("DPMS_DEBUG")) {
+			db = atoi(getenv("DPMS_DEBUG"));
+		}
+		if (DPMSCapable(dpy)) {
+			dpms_capable = 1;
+			rfbLog("X display is capable of DPMS.\n");
+			if (watch_dpms) {
+				rfbLog("Preventing low-power DPMS modes when"
+				    " clients are connected.\n");
+			}
+		} else {
+			if (! raw_fb_str) {
+				rfbLog("X display is not capable of DPMS.\n");
+			}
+			dpms_capable = 0;
+		}
+		init_dpms = 1;
+	}
+
+	if (! watch_dpms) {
+		return;
+	}
+	if (! dpms_capable) {
+		return;
+	}
+	if (! client_count) {
+		return;
+	}
+	if (time(NULL) < last_dpms + 5) {
+		return;
+	}
+	last_dpms = time(NULL);
+
+	if (DPMSInfo(dpy, &level, &enabled)) {
+		if (db) fprintf(stderr, "DPMSInfo level: %d enabled: %d\n", level, enabled);
+
+		if (enabled && level != DPMSModeOn) {
+			char *from = "unknown-dpms-state";
+			XErrorHandler old_handler = XSetErrorHandler(trap_xerror);
+			trapped_xerror = 0;
+
+			if (level == DPMSModeStandby) {
+				from = "DPMSModeStandby";
+			} else if (level == DPMSModeSuspend) {
+				from = "DPMSModeSuspend";
+			} else if (level == DPMSModeOff) {
+				from = "DPMSModeOff";
+			}
+
+			rfbLog("switching DPMS state from %s to DPMSModeOn\n", from);
+			
+			DPMSForceLevel(dpy, DPMSModeOn);
+		
+			XSetErrorHandler(old_handler);
+			trapped_xerror = 0;
+		}
+	} else {
+		if (db) fprintf(stderr, "DPMSInfo failed.\n");
+	}
+#else
+	RAWFB_RET_VOID
+	if (! init_dpms) {
+		if (! raw_fb_str) {
+			rfbLog("X DPMS extension not supported.\n");
+		}
+		init_dpms = 1;
+	}
+#endif
+}
+
-- 
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