From b2443aa2f98c1a1fa5d53d4e79a3e7fd221cc365 Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Thu, 16 Apr 2020 13:35:24 +0000
Subject: Add support for the iTerm2 sychronized updates escape sequence which
 drastically reduces flickering.

---
 tty-term.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'tty-term.c')

diff --git a/tty-term.c b/tty-term.c
index ef7d7905..d6faa6ff 100644
--- a/tty-term.c
+++ b/tty-term.c
@@ -260,6 +260,7 @@ static const struct tty_term_code_entry tty_term_codes[] = {
 	[TTYC_SMUL] = { TTYCODE_STRING, "smul" },
 	[TTYC_SMXX] =  { TTYCODE_STRING, "smxx" },
 	[TTYC_SS] = { TTYCODE_STRING, "Ss" },
+	[TTYC_SYNC] = { TTYCODE_FLAG, "Sync" },
 	[TTYC_TC] = { TTYCODE_FLAG, "Tc" },
 	[TTYC_TSL] = { TTYCODE_STRING, "tsl" },
 	[TTYC_U8] = { TTYCODE_NUMBER, "U8" },
@@ -532,6 +533,10 @@ tty_term_find(char *name, int fd, char **cause)
 	    tty_term_has(term, TTYC_SETRGBB)))
 		term->flags |= TERM_RGBCOLOURS;
 
+	/* Set flag if terminal has synchronized updates. */
+	if (tty_term_flag(term, TTYC_SYNC))
+		term->flags |= TERM_SYNC;
+
 	/*
 	 * Terminals without xenl (eat newline glitch) wrap at at $COLUMNS - 1
 	 * rather than $COLUMNS (the cursor can never be beyond $COLUMNS - 1).
-- 
cgit