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screen-cast/monitor-stream: Don't fall apart when monitor changes

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If the monitor configuration changed, even though the streamed monitor
didn't change, we'd still fail to continue streaming, as we failed to
update the stage watchers, meaning we wouldn't be notified about when
the stage views were painted.

Fix this by reattaching the stage watches, i.e. update the painted
signalling listeners to listen to the right views, when monitor changes
happens.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1691>
This commit is contained in:
Jonas Ådahl 2021-01-27 23:25:51 +01:00 committed by Marge Bot
parent 9f6a441665
commit e877b06fdd
1 changed files with 50 additions and 13 deletions
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63
src/backends/meta-screen-cast-monitor-stream-src.c
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@ -323,18 +323,59 @@ add_view_watches (MetaScreenCastMonitorStreamSrc *monitor_src,
}
}
static void
reattach_watches (MetaScreenCastMonitorStreamSrc *monitor_src)
{
MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (monitor_src);
MetaScreenCastStream *stream;
ClutterStage *stage;
GList *l;
stream = meta_screen_cast_stream_src_get_stream (src);
stage = get_stage (monitor_src);
for (l = monitor_src->watches; l; l = l->next)
meta_stage_remove_watch (META_STAGE (stage), l->data);
g_clear_pointer (&monitor_src->watches, g_list_free);
switch (meta_screen_cast_stream_get_cursor_mode (stream))
{
case META_SCREEN_CAST_CURSOR_MODE_METADATA:
case META_SCREEN_CAST_CURSOR_MODE_HIDDEN:
add_view_watches (monitor_src,
META_STAGE_WATCH_BEFORE_PAINT,
before_stage_painted);
add_view_watches (monitor_src,
META_STAGE_WATCH_AFTER_ACTOR_PAINT,
stage_painted);
break;
case META_SCREEN_CAST_CURSOR_MODE_EMBEDDED:
add_view_watches (monitor_src,
META_STAGE_WATCH_AFTER_PAINT,
stage_painted);
break;
}
}
static void
on_monitors_changed (MetaMonitorManager *monitor_manager,
MetaScreenCastMonitorStreamSrc *monitor_src)
{
reattach_watches (monitor_src);
}
static void
meta_screen_cast_monitor_stream_src_enable (MetaScreenCastStreamSrc *src)
{
MetaScreenCastMonitorStreamSrc *monitor_src =
META_SCREEN_CAST_MONITOR_STREAM_SRC (src);
MetaBackend *backend = get_backend (monitor_src);
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
MetaCursorTracker *cursor_tracker = meta_backend_get_cursor_tracker (backend);
ClutterStage *stage;
MetaScreenCastStream *stream;
stream = meta_screen_cast_stream_src_get_stream (src);
stage = get_stage (monitor_src);
switch (meta_screen_cast_stream_get_cursor_mode (stream))
{
@ -348,25 +389,21 @@ meta_screen_cast_monitor_stream_src_enable (MetaScreenCastStreamSrc *src)
G_CALLBACK (cursor_changed),
monitor_src);
meta_cursor_tracker_track_position (cursor_tracker);
G_GNUC_FALLTHROUGH;
break;
case META_SCREEN_CAST_CURSOR_MODE_HIDDEN:
add_view_watches (monitor_src,
META_STAGE_WATCH_BEFORE_PAINT,
before_stage_painted);
add_view_watches (monitor_src,
META_STAGE_WATCH_AFTER_ACTOR_PAINT,
stage_painted);
break;
case META_SCREEN_CAST_CURSOR_MODE_EMBEDDED:
inhibit_hw_cursor (monitor_src);
meta_cursor_tracker_track_position (cursor_tracker);
add_view_watches (monitor_src,
META_STAGE_WATCH_AFTER_PAINT,
stage_painted);
break;
}
clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
reattach_watches (monitor_src);
g_signal_connect_object (monitor_manager, "monitors-changed-internal",
G_CALLBACK (on_monitors_changed),
monitor_src, 0);
clutter_actor_queue_redraw (CLUTTER_ACTOR (get_stage (monitor_src)));
}
static void