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  1. /* cairo - a vector graphics library with display and print output
  2.  *
  3.  * Copyright © 2009 Intel Corporation
  4.  *
  5.  * This library is free software; you can redistribute it and/or
  6.  * modify it either under the terms of the GNU Lesser General Public
  7.  * License version 2.1 as published by the Free Software Foundation
  8.  * (the "LGPL") or, at your option, under the terms of the Mozilla
  9.  * Public License Version 1.1 (the "MPL"). If you do not alter this
  10.  * notice, a recipient may use your version of this file under either
  11.  * the MPL or the LGPL.
  12.  *
  13.  * You should have received a copy of the LGPL along with this library
  14.  * in the file COPYING-LGPL-2.1; if not, write to the Free Software
  15.  * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
  16.  * You should have received a copy of the MPL along with this library
  17.  * in the file COPYING-MPL-1.1
  18.  *
  19.  * The contents of this file are subject to the Mozilla Public License
  20.  * Version 1.1 (the "License"); you may not use this file except in
  21.  * compliance with the License. You may obtain a copy of the License at
  22.  * http://www.mozilla.org/MPL/
  23.  *
  24.  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
  25.  * OF ANY KIND, either express or implied. See the LGPL or the MPL for
  26.  * the specific language governing rights and limitations.
  27.  *
  28.  * The Original Code is the cairo graphics library.
  29.  *
  30.  * The Initial Developer of the Original Code is Intel Corporation.
  31.  *
  32.  * Contributor(s):
  33.  *      Chris Wilson <chris@chris-wilson.co.uk>
  34.  */
  35.  
  36. #ifndef CAIRO_SURFACE_SUBSURFACE_INLINE_H
  37. #define CAIRO_SURFACE_SUBSURFACE_INLINE_H
  38.  
  39. #include "cairo-surface-subsurface-private.h"
  40.  
  41. static inline cairo_surface_t *
  42. _cairo_surface_subsurface_get_target (cairo_surface_t *surface)
  43. {
  44.     return ((cairo_surface_subsurface_t *) surface)->target;
  45. }
  46.  
  47. static inline void
  48. _cairo_surface_subsurface_offset (cairo_surface_t *surface,
  49.                                   int *x, int *y)
  50. {
  51.     cairo_surface_subsurface_t *ss = (cairo_surface_subsurface_t *) surface;
  52.     *x += ss->extents.x;
  53.     *y += ss->extents.y;
  54. }
  55.  
  56. static inline cairo_surface_t *
  57. _cairo_surface_subsurface_get_target_with_offset (cairo_surface_t *surface,
  58.                                                   int *x, int *y)
  59. {
  60.     cairo_surface_subsurface_t *ss = (cairo_surface_subsurface_t *) surface;
  61.     *x += ss->extents.x;
  62.     *y += ss->extents.y;
  63.     return ss->target;
  64. }
  65.  
  66. static inline cairo_bool_t
  67. _cairo_surface_is_subsurface (cairo_surface_t *surface)
  68. {
  69.     return surface->backend->type == CAIRO_SURFACE_TYPE_SUBSURFACE;
  70. }
  71.  
  72. #endif /* CAIRO_SURFACE_SUBSURFACE_INLINE_H */
  73.