vo_opengl_cb: add support for interpolation

This uses the OpenGL frame interpolation code, which before could be
used by vo_opengl only.

Some effort was made to make it behave like vo_opengl, for the better or
the worse. As a consequence, there is a minor duplication of code and
mechanism. Hopefully this can all be wiped as soon as the VO frame
queue/timing mechanism is cleaned up.

This also attempts to use mpv_opengl_cb_report_flip() (as called by the
API user) to determine the vsync interval. This might need refinement as
well.

(In general, we simply expect the API user to work in vsync-blocking
manner.)

0 files changed, 0 insertions, 0 deletions