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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_SNAPSHOT_INLINE_H
  37. #define CAIRO_SURFACE_SNAPSHOT_INLINE_H
  38.  
  39. #include "cairo-surface-snapshot-private.h"
  40. #include "cairo-surface-inline.h"
  41.  
  42. static inline cairo_bool_t
  43. _cairo_surface_snapshot_is_reused (cairo_surface_t *surface)
  44. {
  45.     return CAIRO_REFERENCE_COUNT_GET_VALUE (&surface->ref_count) > 2;
  46. }
  47.  
  48. static inline cairo_surface_t *
  49. _cairo_surface_snapshot_get_target (cairo_surface_t *surface)
  50. {
  51.     cairo_surface_snapshot_t *snapshot = (cairo_surface_snapshot_t *) surface;
  52.     cairo_surface_t *target;
  53.  
  54.     CAIRO_MUTEX_LOCK (snapshot->mutex);
  55.     target = _cairo_surface_reference (snapshot->target);
  56.     CAIRO_MUTEX_UNLOCK (snapshot->mutex);
  57.  
  58.     return target;
  59. }
  60.  
  61. static inline cairo_bool_t
  62. _cairo_surface_is_snapshot (cairo_surface_t *surface)
  63. {
  64.     return surface->backend->type == (cairo_surface_type_t)CAIRO_INTERNAL_SURFACE_TYPE_SNAPSHOT;
  65. }
  66.  
  67. #endif /* CAIRO_SURFACE_SNAPSHOT_INLINE_H */
  68.