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WindowServer: Implement mechanism to restore safe mode setting

Such mechanism will be used by the Intel Graphics driver, because we
lack support of changing the resolution on this driver currently, so,
when WindowServer will try to mode-set the display then it will fail,
and will use the safe mode-setting call instead to be able to show
something on screen.
This commit is contained in:
Liav A 2022-04-29 20:11:42 +03:00 committed by Andreas Kling
parent d9a2706079
commit 6d7e2596e0
3 changed files with 15 additions and 3 deletions

View file

@ -64,6 +64,11 @@ ALWAYS_INLINE int fb_set_head_mode_setting(int fd, FBHeadModeSetting* mode_setti
return ioctl(fd, FB_IOCTL_SET_HEAD_MODE_SETTING, mode_setting);
}
ALWAYS_INLINE int fb_set_safe_head_mode_setting(int fd)
{
return ioctl(fd, FB_IOCTL_SET_SAFE_HEAD_MODE_SETTING, nullptr);
}
ALWAYS_INLINE int fb_get_head_mode_setting(int fd, FBHeadModeSetting* mode_setting)
{
FBHeadModeSetting head_mode_setting;