x11: add --x11-present option

With the recent addition of the libxpresent, it should improve frame
timings for most users. However, there were known cases of bad behavior
(Nvidia) which lead to a construction of a whitelist instead of just
enabling this all the time. Since there's no way to predict whatever
combination of hardware/drivers/etc. may work correctly, just give users
an option to switch the usage of xorg's presentation statistics on/off.
The default value, auto, works like before (basically, Mesa drivers and
no Nvidia are allowed), but now one can force it on/off if needed.

1 files changed, 1 insertions, 0 deletions

diff --git a/options/options.h b/options/options.h
index 4eb5ef07c7..f38f3b6bfb 100644
--- a/options/options.h
+++ b/options/options.h
@@ -29,6 +29,7 @@ typedef struct mp_vo_opts {
     char *appid;
     int x11_netwm;
     int x11_bypass_compositor;
+    int x11_present;
     int native_keyrepeat;
 
     float panscan;