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wayland: Use weak ref to keep track of buffers

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Instead of using a one-shot signal meant to happen then the buffer
is being destroyed.

https://bugzilla.gnome.org/show_bug.cgi?id=782344
This commit is contained in:
Carlos Garnacho 2017-05-06 22:46:06 +02:00
parent a7ee7559e4
commit 8d75ea69e3
2 changed files with 13 additions and 22 deletions
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34
src/wayland/meta-wayland-surface.c
View File

@ -470,14 +470,6 @@ queue_surface_actor_frame_callbacks (MetaWaylandSurface *surface,
wl_list_init (&pending->frame_callback_list);
}
static void
pending_buffer_resource_destroyed (MetaWaylandBuffer *buffer,
MetaWaylandPendingState *pending)
{
g_signal_handler_disconnect (buffer, pending->buffer_destroy_handler_id);
pending->buffer = NULL;
}
static void
pending_state_init (MetaWaylandPendingState *state)
{
@ -510,8 +502,9 @@ pending_state_destroy (MetaWaylandPendingState *state)
g_clear_pointer (&state->opaque_region, cairo_region_destroy);
if (state->buffer)
g_signal_handler_disconnect (state->buffer,
state->buffer_destroy_handler_id);
g_object_remove_weak_pointer (G_OBJECT (state->buffer),
(gpointer *) &state->buffer);
wl_list_for_each_safe (cb, next, &state->frame_callback_list, link)
wl_resource_destroy (cb->resource);
}
@ -528,7 +521,10 @@ move_pending_state (MetaWaylandPendingState *from,
MetaWaylandPendingState *to)
{
if (from->buffer)
g_signal_handler_disconnect (from->buffer, from->buffer_destroy_handler_id);
{
g_object_remove_weak_pointer (G_OBJECT (from->buffer),
(gpointer *) &from->buffer);
}
to->newly_attached = from->newly_attached;
to->buffer = from->buffer;
@ -554,10 +550,8 @@ move_pending_state (MetaWaylandPendingState *from,
if (to->buffer)
{
to->buffer_destroy_handler_id =
g_signal_connect (to->buffer, "resource-destroyed",
G_CALLBACK (pending_buffer_resource_destroyed),
to);
g_object_add_weak_pointer (G_OBJECT (to->buffer),
(gpointer *) &to->buffer);
}
pending_state_init (from);
@ -913,8 +907,8 @@ wl_surface_attach (struct wl_client *client,
if (surface->pending->buffer)
{
g_signal_handler_disconnect (surface->pending->buffer,
surface->pending->buffer_destroy_handler_id);
g_object_remove_weak_pointer (G_OBJECT (surface->pending->buffer),
(gpointer *) &surface->pending->buffer);
}
surface->pending->newly_attached = TRUE;
@ -924,10 +918,8 @@ wl_surface_attach (struct wl_client *client,
if (buffer)
{
surface->pending->buffer_destroy_handler_id =
g_signal_connect (buffer, "resource-destroyed",
G_CALLBACK (pending_buffer_resource_destroyed),
surface->pending);
g_object_add_weak_pointer (G_OBJECT (surface->pending->buffer),
(gpointer *) &surface->pending->buffer);
}
}

1
src/wayland/meta-wayland-surface.h
View File

@ -123,7 +123,6 @@ struct _MetaWaylandPendingState
/* wl_surface.attach */
gboolean newly_attached;
MetaWaylandBuffer *buffer;
gulong buffer_destroy_handler_id;
int32_t dx;
int32_t dy;