From: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
Date: Tue, 7 Jan 2020 03:42:19 +0000 (+0900)
Subject: Fix rendering bug due to unsynchronized cairo surface size (Bug#38497)
X-Git-Tag: emacs-27.0.90~204
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=c01f55f126fd057c7fe559de53d7edb81f92c832;p=emacs.git

Fix rendering bug due to unsynchronized cairo surface size (Bug#38497)

* src/xterm.c (handle_one_xevent) <ConfigureNotify> [USE_CAIRO && !USE_GTK]:
Call x_cr_update_surface_desired_size for a related frame as a fallback.
---

diff --git a/src/xterm.c b/src/xterm.c
index ada3cec1636..21d99f0c7bb 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -8934,6 +8934,10 @@ handle_one_xevent (struct x_display_info *dpyinfo,
       if (f)
 	x_cr_update_surface_desired_size (f, configureEvent.xconfigure.width,
 					  configureEvent.xconfigure.height);
+      else if (any && configureEvent.xconfigure.window == FRAME_X_WINDOW (any))
+	x_cr_update_surface_desired_size (any,
+					  configureEvent.xconfigure.width,
+					  configureEvent.xconfigure.height);
 #endif
 #ifdef USE_GTK
       if (!f