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patch 8.0.1449: slow redrawing with DirectX

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Problem:    Slow redrawing with DirectX.
Solution:   Avoid calling gui_mch_flush() unnecessarily, especially when
            updating the cursor. (Ken Takata, closes #2560)
This commit is contained in:
Bram Moolenaar
2018-01-31 20:51:47 +01:00
parent 37badc898b
commit a338adcf22
19 changed files with 224 additions and 173 deletions
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2
src/message.c
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@@ -2316,7 +2316,9 @@ msg_scroll_up(void)
gui_undraw_cursor();
#endif
/* scrolling up always works */
mch_disable_flush();
screen_del_lines(0, 0, 1, (int)Rows, TRUE, 0, NULL);
mch_enable_flush();
if (!can_clear((char_u *)" "))
{