Speed up vertical-motion when screen coordinates are known

 src/indent.c (Fvertical_motion): Accept an additional argument
 CUR-COL and use it as the starting screen coordinate.
 src/window.c (window_scroll_line_based, Fmove_to_window_line): All
 callers of vertical-motion changed.

 doc/lispref/positions.texi (Screen Lines): Update the documentation of
 vertical-motion to document the new additional argument.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 2a702a29a7d..4afcdcf0711 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,10 @@
+2015-02-09  Eli Zaretskii  <eliz@gnu.org>
+
+        * indent.c (Fvertical_motion): Accept an additional argument
+        CUR-COL and use it as the starting screen coordinate.
+        * window.c (window_scroll_line_based, Fmove_to_window_line): All
+        callers of vertical-motion changed.
+
 2015-02-09  Dima Kogan  <dima@secretsauce.net>
 
         * font.c (font_score): Remove unused variable assignment.