From 5f3160d186db4f1ae48ab929196db5f1e30a6b82 Mon Sep 17 00:00:00 2001
From: Jeff Westfahl <jeff.westfahl@ni.com>
Date: Mon, 27 Jun 2016 09:58:16 -0500
Subject: [PATCH] Speed up clipboard copies.

Copying large scrollback buffers to the clipboard can take a long time,
up to several minutes. Doubling the size of the clipboard copy buffer
when more space is needed, instead of just adding a small constant size,
significantly speeds up clipboard copies of large scrollback buffers.
---
 terminal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/terminal.c b/terminal.c
index 7a444b71..5b37fe79 100644
--- a/terminal.c
+++ b/terminal.c
@@ -5445,7 +5445,7 @@ typedef struct {
 static void clip_addchar(clip_workbuf *b, wchar_t chr, int attr)
 {
     if (b->bufpos >= b->buflen) {
-	b->buflen += 128;
+	b->buflen *= 2;
 	b->textbuf = sresize(b->textbuf, b->buflen, wchar_t);
 	b->textptr = b->textbuf + b->bufpos;
 	b->attrbuf = sresize(b->attrbuf, b->buflen, int);