From: Po Lu <luangruo@yahoo.com>
Date: Fri, 10 Dec 2021 06:20:32 +0000 (+0800)
Subject: Further reduce image-related stutter during precision scrolling
X-Git-Tag: emacs-29.0.90~3606^2
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=6e865a7171d80cd91b54c6d71b88d960b920abe3;p=emacs.git

Further reduce image-related stutter during precision scrolling

* lisp/pixel-scroll.el
(pixel-scroll-precision-scroll-down-page): Disable
`scroll-preserve-screen-position' and `auto-window-vscroll'
while scrolling.
---

diff --git a/lisp/pixel-scroll.el b/lisp/pixel-scroll.el
index 5425462caf5..336b555e77c 100644
--- a/lisp/pixel-scroll.el
+++ b/lisp/pixel-scroll.el
@@ -453,7 +453,9 @@ the height of the current window."
                      (goto-char desired-start)
                      (when (zerop (vertical-motion (1+ scroll-margin)))
                        (signal 'end-of-buffer nil))
-                     (point))))
+                     (point)))
+         (scroll-preserve-screen-position nil)
+         (auto-window-vscroll nil))
     (when (and (or (< (point) next-pos))
                (let ((pos-visibility (pos-visible-in-window-p next-pos nil t)))
                  (and pos-visibility