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diff --git a/libs/cairo-1.16.0/src/cairo-image-surface-inline.h b/libs/cairo-1.16.0/src/cairo-image-surface-inline.h
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+++ b/libs/cairo-1.16.0/src/cairo-image-surface-inline.h
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+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#ifndef CAIRO_IMAGE_SURFACE_INLINE_H
+#define CAIRO_IMAGE_SURFACE_INLINE_H
+
+#include "cairo-surface-private.h"
+#include "cairo-image-surface-private.h"
+
+CAIRO_BEGIN_DECLS
+
+static inline cairo_image_surface_t *
+_cairo_image_surface_create_in_error (cairo_status_t status)
+{
+    return (cairo_image_surface_t *) _cairo_surface_create_in_error (status);
+}
+
+static inline void
+_cairo_image_surface_set_parent (cairo_image_surface_t *image,
+				 cairo_surface_t *parent)
+{
+    image->parent = parent;
+}
+
+static inline cairo_bool_t
+_cairo_image_surface_is_clone (cairo_image_surface_t *image)
+{
+    return image->parent != NULL;
+}
+
+/**
+ * _cairo_surface_is_image:
+ * @surface: a #cairo_surface_t
+ *
+ * Checks if a surface is an #cairo_image_surface_t
+ *
+ * Return value: %TRUE if the surface is an image surface
+ **/
+static inline cairo_bool_t
+_cairo_surface_is_image (const cairo_surface_t *surface)
+{
+    /* _cairo_surface_nil sets a NULL backend so be safe */
+    return surface->backend && surface->backend->type == CAIRO_SURFACE_TYPE_IMAGE;
+}
+
+/**
+ * _cairo_surface_is_image_source:
+ * @surface: a #cairo_surface_t
+ *
+ * Checks if a surface is an #cairo_image_source_t
+ *
+ * Return value: %TRUE if the surface is an image source
+ **/
+static inline cairo_bool_t
+_cairo_surface_is_image_source (const cairo_surface_t *surface)
+{
+    return surface->backend == &_cairo_image_source_backend;
+}
+
+CAIRO_END_DECLS
+
+#endif /* CAIRO_IMAGE_SURFACE_INLINE_H */