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screen-cast-stream-src/virtual: Reorganize hooking things up

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There were things hooked up (connecting signals, adding stage watches),
but it was a bit disorganized, with "adding watches" doing more, and
"init callbacks" being a bit vague. Split things up to

 * setup view - hook up things that need to listen on a stage view
 * setup cursor tracking - track cursor positions, sprite changes
 * the rest - monitor changes etc

This also properly handles a race condition when we'll enable before the
idle callback creating the view from the virtual monitors is run.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/4066>
This commit is contained in:
Jonas Ådahl 2024-10-03 22:25:42 +02:00 committed by Marge Bot
parent 7ff5334a3b
commit ca47be6ee9
1 changed files with 27 additions and 27 deletions
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54
src/backends/meta-screen-cast-virtual-stream-src.c
View File

@ -94,7 +94,7 @@ view_from_src (MetaScreenCastStreamSrc *src)
MetaRenderer *renderer = meta_backend_get_renderer (backend_from_src (src));
MetaRendererView *view = meta_renderer_get_view_for_crtc (renderer, crtc);
return CLUTTER_STAGE_VIEW (view);
return view ? CLUTTER_STAGE_VIEW (view) : NULL;
}
static ClutterStage *
@ -193,12 +193,12 @@ on_after_paint (MetaStage *stage,
}
static void
add_watch (MetaScreenCastVirtualStreamSrc *virtual_src)
setup_view (MetaScreenCastVirtualStreamSrc *virtual_src,
ClutterStageView *view)
{
MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (virtual_src);
MetaScreenCastStream *stream = meta_screen_cast_stream_src_get_stream (src);
MetaStage *meta_stage = META_STAGE (stage_from_src (src));
ClutterStageView *view = view_from_src (src);
g_return_if_fail (!virtual_src->watch);
@ -227,22 +227,23 @@ on_monitors_changed (MetaMonitorManager *monitor_manager,
MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (virtual_src);
MetaStage *stage = META_STAGE (stage_from_src (src));
MetaScreenCastStream *stream = meta_screen_cast_stream_src_get_stream (src);
ClutterStageView *view;
meta_stage_remove_watch (stage, virtual_src->watch);
virtual_src->watch = NULL;
add_watch (virtual_src);
view = view_from_src (src);
setup_view (virtual_src, view);
meta_eis_viewport_notify_changed (META_EIS_VIEWPORT (stream));
}
static void
init_record_callbacks (MetaScreenCastVirtualStreamSrc *virtual_src)
setup_cursor_handling (MetaScreenCastVirtualStreamSrc *virtual_src)
{
MetaScreenCastStreamSrc *src = META_SCREEN_CAST_STREAM_SRC (virtual_src);
MetaScreenCastStream *stream = meta_screen_cast_stream_src_get_stream (src);
MetaBackend *backend = backend_from_src (src);
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
MetaCursorTracker *cursor_tracker =
meta_backend_get_cursor_tracker (backend);
ClutterStage *stage = stage_from_src (src);
@ -250,6 +251,7 @@ init_record_callbacks (MetaScreenCastVirtualStreamSrc *virtual_src)
switch (meta_screen_cast_stream_get_cursor_mode (stream))
{
case META_SCREEN_CAST_CURSOR_MODE_METADATA:
meta_cursor_tracker_track_position (cursor_tracker);
virtual_src->position_invalidated_handler_id =
g_signal_connect_after (cursor_tracker, "position-invalidated",
G_CALLBACK (pointer_position_invalidated),
@ -262,19 +264,13 @@ init_record_callbacks (MetaScreenCastVirtualStreamSrc *virtual_src)
g_signal_connect_after (stage, "prepare-frame",
G_CALLBACK (on_prepare_frame),
virtual_src);
G_GNUC_FALLTHROUGH;
break;
case META_SCREEN_CAST_CURSOR_MODE_EMBEDDED:
meta_cursor_tracker_track_position (cursor_tracker);
break;
case META_SCREEN_CAST_CURSOR_MODE_HIDDEN:
add_watch (virtual_src);
break;
}
meta_screen_cast_stream_notify_is_configured (stream);
virtual_src->monitors_changed_handler_id =
g_signal_connect (monitor_manager, "monitors-changed-internal",
G_CALLBACK (on_monitors_changed),
virtual_src);
}
static void
@ -284,19 +280,23 @@ meta_screen_cast_virtual_stream_src_enable (MetaScreenCastStreamSrc *src)
META_SCREEN_CAST_VIRTUAL_STREAM_SRC (src);
MetaScreenCastStream *stream = meta_screen_cast_stream_src_get_stream (src);
MetaBackend *backend = backend_from_src (src);
MetaCursorTracker *cursor_tracker = meta_backend_get_cursor_tracker (backend);
MetaMonitorManager *monitor_manager =
meta_backend_get_monitor_manager (backend);
ClutterStageView *view;
switch (meta_screen_cast_stream_get_cursor_mode (stream))
{
case META_SCREEN_CAST_CURSOR_MODE_METADATA:
case META_SCREEN_CAST_CURSOR_MODE_EMBEDDED:
meta_cursor_tracker_track_position (cursor_tracker);
break;
case META_SCREEN_CAST_CURSOR_MODE_HIDDEN:
break;
}
view = view_from_src (src);
if (view)
setup_view (virtual_src, view);
setup_cursor_handling (virtual_src);
meta_screen_cast_stream_notify_is_configured (stream);
virtual_src->monitors_changed_handler_id =
g_signal_connect (monitor_manager, "monitors-changed-internal",
G_CALLBACK (on_monitors_changed),
virtual_src);
init_record_callbacks (virtual_src);
clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (stage_from_src (src)),
NULL);
clutter_stage_schedule_update (stage_from_src (src));