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x: fix x_request_vblank_event 

present_notify_msc with divisor == 0 has undocumented special meaning,
it means async present notify, which means we could receive MSC
notifications from the past.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui 2023-12-18 09:33:17 +00:00
parent 3838b45e2c
commit 25d16b0352
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1 changed files with 1 additions and 2 deletions
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3
src/x.c
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@ -780,8 +780,7 @@ err:
}
void x_request_vblank_event(struct x_connection *c, xcb_window_t window, uint64_t msc) {
auto cookie =
xcb_present_notify_msc(c->c, window, 0, msc, 0, 0);
auto cookie = xcb_present_notify_msc(c->c, window, 0, msc, 1, 0);
set_cant_fail_cookie(c, cookie);
}