video/out: introduce vo_control for gl_common based VOs

Instead of having separate callbacks for each backend-handled feature
(like MPGLContext.fullscreen, MPGLContext.border, etc.), pass the
VOCTRL responsible for this directly to the backend. This allows
removing a bunch of callbacks, that currently must be set even for
optional/lesser features (like VOCTRL_BORDER).

This requires changes to all VOs using gl_common, as well as all
backends that support gl_common.

Also introduce VOCTRL_CHECK_EVENTS. vo.check_events is now optional.
VO backends can use VOCTRL_CHECK_EVENTS instead to implementing
check_events. This has the advantage that the event handling code in
VOs doesn't have to be duplicated if vo_control() is used.

1 files changed, 1 insertions, 4 deletions

diff --git a/video/out/gl_x11.c b/video/out/gl_x11.c
index 7833a2bc41..d780df967e 100644
--- a/video/out/gl_x11.c
+++ b/video/out/gl_x11.c
@@ -307,11 +307,8 @@ void mpgl_set_backend_x11(MPGLContext *ctx)
     ctx->config_window = config_window_x11;
     ctx->releaseGlContext = releaseGlContext_x11;
     ctx->swapGlBuffers = swapGlBuffers_x11;
-    ctx->update_xinerama_info = vo_x11_update_screeninfo;
-    ctx->border = vo_x11_border;
     ctx->check_events = vo_x11_check_events;
-    ctx->fullscreen = vo_x11_fullscreen;
-    ctx->ontop = vo_x11_ontop;
     ctx->vo_init = vo_x11_init;
     ctx->vo_uninit = vo_x11_uninit;
+    ctx->vo_control = vo_x11_control;
 }