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558f0a5ab4
As the surface->backend will be NULL in such an error surface, and we may be legitimately doing boundary checks to reject the error surface. The alternative would be to set an explicit error surface backend. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54664 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/* cairo - a vector graphics library with display and print output
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*
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* Copyright © 2002 University of Southern California
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* Copyright © 2005 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it either under the terms of the GNU Lesser General Public
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* License version 2.1 as published by the Free Software Foundation
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* (the "LGPL") or, at your option, under the terms of the Mozilla
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* Public License Version 1.1 (the "MPL"). If you do not alter this
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* notice, a recipient may use your version of this file under either
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* the MPL or the LGPL.
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*
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* You should have received a copy of the LGPL along with this library
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* in the file COPYING-LGPL-2.1; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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* You should have received a copy of the MPL along with this library
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* in the file COPYING-MPL-1.1
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
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* OF ANY KIND, either express or implied. See the LGPL or the MPL for
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* the specific language governing rights and limitations.
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*
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* The Original Code is the cairo graphics library.
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*
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* The Initial Developer of the Original Code is University of Southern
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* California.
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*
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* Contributor(s):
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* Carl D. Worth <cworth@cworth.org>
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*/
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#ifndef CAIRO_IMAGE_SURFACE_INLINE_H
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#define CAIRO_IMAGE_SURFACE_INLINE_H
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#include "cairo-surface-private.h"
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#include "cairo-image-surface-private.h"
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CAIRO_BEGIN_DECLS
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static inline cairo_image_surface_t *
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_cairo_image_surface_create_in_error (cairo_status_t status)
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{
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return (cairo_image_surface_t *) _cairo_surface_create_in_error (status);
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}
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static inline void
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_cairo_image_surface_set_parent (cairo_image_surface_t *image,
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cairo_surface_t *parent)
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{
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image->parent = parent;
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}
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static inline cairo_bool_t
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_cairo_image_surface_is_clone (cairo_image_surface_t *image)
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{
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return image->parent != NULL;
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}
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/**
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* _cairo_surface_is_image:
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* @surface: a #cairo_surface_t
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*
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* Checks if a surface is an #cairo_image_surface_t
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*
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* Return value: %TRUE if the surface is an image surface
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**/
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static inline cairo_bool_t
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_cairo_surface_is_image (const cairo_surface_t *surface)
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{
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/* _cairo_surface_nil sets a NULL backend so be safe */
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return surface->backend && surface->backend->type == CAIRO_SURFACE_TYPE_IMAGE;
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}
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/**
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* _cairo_surface_is_image_source:
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* @surface: a #cairo_surface_t
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*
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* Checks if a surface is an #cairo_image_source_t
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*
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* Return value: %TRUE if the surface is an image source
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**/
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static inline cairo_bool_t
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_cairo_surface_is_image_source (const cairo_surface_t *surface)
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{
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return surface->backend == &_cairo_image_source_backend;
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}
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CAIRO_END_DECLS
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#endif /* CAIRO_IMAGE_SURFACE_INLINE_H */
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