X-Git-Url: https://git.sesse.net/?p=ccbs;a=blobdiff_plain;f=bigscreen%2Frotatescreen.cpp;h=275b73ed0820c8806b9b8999ca0688528b929c47;hp=a7d3a5c01b34a89b9f6aef7d615d5591526afeaa;hb=ef1894b4aa12db7fef35e1f62be0964fb7f6159e;hpb=d994a4d55c8390dc892490345160cb79ff91caeb

diff --git a/bigscreen/rotatescreen.cpp b/bigscreen/rotatescreen.cpp
index a7d3a5c..275b73e 100644
--- a/bigscreen/rotatescreen.cpp
+++ b/bigscreen/rotatescreen.cpp
@@ -20,6 +20,8 @@ bool RotateScreen::check_invalidated()
 		return true;
 	if (needs_update())
 		return true;
+	if (!can_update())
+		return false;
 	
 	for (unsigned i = 0; i < subscreens.size(); ++i) {
 		if (subscreens[i].screen->check_invalidated())
@@ -52,7 +54,7 @@ void RotateScreen::draw(unsigned char *buf)
 		double elapsed_fade = double(now.tv_sec - fade_started.tv_sec) +
 			double(now.tv_usec - fade_started.tv_usec) * 1.0e-6;
 		
-		if (elapsed_fade > 5.5 || (!same_fade && elapsed_fade > 0.5)) {
+		if (elapsed_fade > 5.5 || (!fade_to_new_info && elapsed_fade > 0.5)) {
 			in_fade = false;
 
 			// ugly hack here? :-)
@@ -62,7 +64,7 @@ void RotateScreen::draw(unsigned char *buf)
 		} else {
 			// find the fade factors
 			int fr, fg, fb, fa;
-			if (same_fade) {
+			if (fade_to_new_info) {
 				if (elapsed_fade < 0.5) {
 					fr = fg = fb = fa = unsigned(elapsed_fade/0.5 * 256.0);
 				} else {
@@ -76,7 +78,7 @@ void RotateScreen::draw(unsigned char *buf)
 			unsigned char *sptr2 = subscreens[current_screen].buf;
 			unsigned char *dptr = buf;
 
-			if (same_fade && elapsed_fade >= 0.5) {
+			if (fade_to_new_info && elapsed_fade >= 0.5) {
 				// fade G&B to be = R
 				for (unsigned i = 0; i < 800 * 600; ++i) {
 					dptr[0] = sptr2[0] + (((int(sptr2[2]) - int(sptr2[0])) * fb) >> 8);
@@ -120,7 +122,7 @@ void RotateScreen::draw(unsigned char *buf)
 			// initialize a fade
 			in_fade = true;
 			fade_found_start_time = false;
-			same_fade = (current_screen == old_current_screen) || force;
+			fade_to_new_info = force;
 			
 			memcpy(fadefrom_buf, subscreens[old_current_screen].buf, 800 * 600 * 4);
 
@@ -147,6 +149,22 @@ bool RotateScreen::needs_update()
 	return (since >= 10.0);
 }
 
+// hold all screens for minimum three seconds, hold all screens with new info for at minimum eight seconds
+bool RotateScreen::can_update()
+{
+	struct timeval now;
+	gettimeofday(&now, NULL);
+
+	double since = double(now.tv_sec - last_update.tv_sec) +
+		double(now.tv_usec - last_update.tv_usec) * 1.0e-6;
+
+	if (since < 3.0)
+		return false;
+	if (fade_to_new_info && since < 8.0)
+		return false;
+	return true;
+}
+
 void RotateScreen::add_screen(GenericScreen *screen)
 {
 	Subscreen ss;