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wayland/buffer: Move scanout lifetime handling

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There doesn't seem to be a good reason to keep this code in
`MetaWaylandSurface`. Moving it to `MetaWaylandBuffer` cleans things
up and will allow us to tread buffers differently depending on their
type.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3559>
This commit is contained in:
Robert Mader 2024-02-02 17:52:27 +01:00
parent 03a98343d2
commit a422ae022b
2 changed files with 21 additions and 26 deletions
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22
src/wayland/meta-wayland-buffer.c
View file

@ -897,6 +897,16 @@ try_acquire_egl_image_scanout (MetaWaylandBuffer *buffer,
#endif #endif
} }
static void
scanout_destroyed (gpointer data,
GObject *where_the_object_was)
{
MetaWaylandBuffer *buffer = data;
meta_wayland_buffer_dec_use_count (buffer);
g_object_unref (buffer);
}
CoglScanout * CoglScanout *
meta_wayland_buffer_try_acquire_scanout (MetaWaylandBuffer *buffer, meta_wayland_buffer_try_acquire_scanout (MetaWaylandBuffer *buffer,
CoglOnscreen *onscreen) CoglOnscreen *onscreen)
@ -936,9 +946,15 @@ meta_wayland_buffer_try_acquire_scanout (MetaWaylandBuffer *buffer,
return NULL; return NULL;
} }
if (scanout) if (!scanout)
g_signal_connect (scanout, "scanout-failed", return NULL;
G_CALLBACK (on_scanout_failed), buffer);
g_signal_connect (scanout, "scanout-failed",
G_CALLBACK (on_scanout_failed), buffer);
g_object_ref (buffer);
meta_wayland_buffer_inc_use_count (buffer);
g_object_weak_ref (G_OBJECT (scanout), scanout_destroyed, buffer);
return scanout; return scanout;
} }

25
src/wayland/meta-wayland-surface.c
View file

@ -2253,39 +2253,18 @@ meta_wayland_surface_get_buffer_height (MetaWaylandSurface *surface)
return 0; return 0;
} }
static void
scanout_destroyed (gpointer data,
GObject *where_the_object_was)
{
MetaWaylandBuffer *buffer = data;
meta_wayland_buffer_dec_use_count (buffer);
g_object_unref (buffer);
}
CoglScanout * CoglScanout *
meta_wayland_surface_try_acquire_scanout (MetaWaylandSurface *surface, meta_wayland_surface_try_acquire_scanout (MetaWaylandSurface *surface,
CoglOnscreen *onscreen) CoglOnscreen *onscreen)
{ {
CoglScanout *scanout;
MetaWaylandBuffer *buffer;
if (!surface->buffer) if (!surface->buffer)
return NULL; return NULL;
if (surface->buffer->use_count == 0) if (surface->buffer->use_count == 0)
return NULL; return NULL;
scanout = meta_wayland_buffer_try_acquire_scanout (surface->buffer, return meta_wayland_buffer_try_acquire_scanout (surface->buffer,
onscreen); onscreen);
if (!scanout)
return NULL;
buffer = g_object_ref (surface->buffer);
meta_wayland_buffer_inc_use_count (buffer);
g_object_weak_ref (G_OBJECT (scanout), scanout_destroyed, buffer);
return scanout;
} }
MetaCrtc * MetaCrtc *