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| author | emaste <emaste@FreeBSD.org> | 2014-09-03 14:00:37 +0000 |
|---|---|---|
| committer | emaste <emaste@FreeBSD.org> | 2014-09-03 14:00:37 +0000 |
| commit | 41ee2454d86a5d5d93966dd7badebc8a999ed5ba (patch) | |
| tree | 03c385e91a0992f0d5eadfddee2bac1026443912 /sys/dev/vt/vt.h | |
| parent | a8ec7c36a31697d414a0126c83fea550ce6e0be5 (diff) | |
| download | FreeBSD-src-41ee2454d86a5d5d93966dd7badebc8a999ed5ba.zip FreeBSD-src-41ee2454d86a5d5d93966dd7badebc8a999ed5ba.tar.gz | |
MFC r270280 by dumbbell: vt(4): Pause the flush timer while swithing window
This fixes bad looking refresh when switching window: squares instead
of text, flashing screen, and so on. In the worst case, vt_flush() came
at a very inappropriate timing and the screen was not refreshed at all
(leaving squares all over the place).
This doesn't fix the flickering of the screen with vt_vga, because the
sync signal is temporarily stopped and the video memory is cleared.
Sponsored by: The FreeBSD Foundation
Diffstat (limited to 'sys/dev/vt/vt.h')
| -rw-r--r-- | sys/dev/vt/vt.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/dev/vt/vt.h b/sys/dev/vt/vt.h index 7f19b0f..c4e1ed7 100644 --- a/sys/dev/vt/vt.h +++ b/sys/dev/vt/vt.h @@ -128,6 +128,7 @@ struct vt_device { struct mtx vd_lock; /* Per-device lock. */ struct cv vd_winswitch; /* (d) Window switch notify. */ struct callout vd_timer; /* (d) Display timer. */ + volatile unsigned int vd_timer_armed;/* (?) Display timer started.*/ int vd_flags; /* (d) Device flags. */ #define VDF_TEXTMODE 0x01 /* Do text mode rendering. */ #define VDF_SPLASH 0x02 /* Splash screen active. */ |
