Dudemanguy 91c1b65de0 vo: change draw_frame API to a boolean ...

x11 and wayland VOs + backends all have logic that skips drawing frames
when the mpv isn't visible for efficiency reasons. This is implemented
in each individual VO, but it is useful for the core to be aware of this
as well. Currently, the display-sync modes on x11 do not try to be
efficient and always render anyways because there is no blocking on the
graphics API level if you skip rendering a frame (wayland works here by
accident). This means mpv would otherwise blaze through frames which is
not what anyone wants. We can instead improve this by implementing the
blocking mechanism in the core and using that when appropriate. This
commit does not implement that yet, but simply switches the draw_frame
to a boolean. Receiving false means that the VO is not drawing frames
and it should be treated as if the surface was hidden.

2024-12-28 16:51:28 +00:00

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