Commit ab2776c9 authored by Chris Wilson's avatar Chris Wilson 🤔
Browse files

snapshot: Attach the backend generated snapshot to the target

Cache the result of snapshotting using the backend vfunc in the normal
manner by attaching the snapshot to the target. This should reduce
resource usage in these cases.
parent 07122f37
......@@ -196,10 +196,29 @@ _cairo_surface_snapshot (cairo_surface_t *surface)
if (surface->backend->snapshot != NULL) {
cairo_surface_t *snap;
snap = surface->backend->snapshot (surface);
snap = _cairo_surface_has_snapshot (surface, surface->backend);
if (snap != NULL)
return cairo_surface_reference (snap);
snap = surface->backend->snapshot (surface);
if (snap != NULL) {
if (unlikely (snap->status))
return snap;
status = _cairo_surface_copy_mime_data (snap, surface);
if (unlikely (status)) {
cairo_surface_destroy (snap);
return _cairo_surface_create_in_error (status);
}
snap->device_transform = surface->device_transform;
snap->device_transform_inverse = surface->device_transform_inverse;
_cairo_surface_attach_snapshot (surface, snap, NULL);
return snap;
}
}
snapshot = (cairo_surface_snapshot_t *)
_cairo_surface_has_snapshot (surface, &_cairo_surface_snapshot_backend);
......
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