From: Po Lu <luangruo@yahoo.com>
Date: Sat, 5 Mar 2022 03:13:37 +0000 (+0800)
Subject: Flush default GC before using it in functions that accept a GContext
X-Git-Tag: emacs-29.0.90~2010
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=3c5aad0b8b88fd763e46c41a2fab87c9dc206e97;p=emacs.git

Flush default GC before using it in functions that accept a GContext

* src/xterm.c (x_scroll_run): Flush normal_gc, since some of the
following code depends on it being up-to-date.
---

diff --git a/src/xterm.c b/src/xterm.c
index 55224d93c9b..5f8e804c62a 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -5983,6 +5983,12 @@ x_scroll_run (struct window *w, struct run *run)
     }
 #endif
 
+  /* Some of the following code depends on `normal_gc' being
+     up-to-date on the X server, but doesn't call a routine that will
+     flush it first.  So do this ourselves instead.  */
+  XFlushGC (FRAME_X_DISPLAY (f),
+	    f->output_data.x->normal_gc);
+
 #ifdef USE_CAIRO
   if (FRAME_CR_CONTEXT (f))
     {