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  1. /* cairo - a vector graphics library with display and print output
  2.  *
  3.  * Copyright © 2012 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 Chris Wilson
  31.  *
  32.  * Contributor(s):
  33.  *      Chris Wilson <chris@chris-wilson.co.uk>
  34.  */
  35.  
  36. #ifndef CAIRO_DAMAGE_PRIVATE_H
  37. #define CAIRO_DAMAGE_PRIVATE_H
  38.  
  39. #include "cairo-types-private.h"
  40.  
  41. #include <pixman.h>
  42.  
  43. CAIRO_BEGIN_DECLS
  44.  
  45. struct _cairo_damage {
  46.     cairo_status_t status;
  47.     cairo_region_t *region;
  48.  
  49.     int dirty, remain;
  50.     struct _cairo_damage_chunk {
  51.         struct _cairo_damage_chunk *next;
  52.         cairo_box_t *base;
  53.         int count;
  54.         int size;
  55.     } chunks, *tail;
  56.     cairo_box_t boxes[32];
  57. };
  58.  
  59. cairo_private cairo_damage_t *
  60. _cairo_damage_create (void);
  61.  
  62. cairo_private cairo_damage_t *
  63. _cairo_damage_create_in_error (cairo_status_t status);
  64.  
  65. cairo_private cairo_damage_t *
  66. _cairo_damage_add_box (cairo_damage_t *damage,
  67.                        const cairo_box_t *box);
  68.  
  69. cairo_private cairo_damage_t *
  70. _cairo_damage_add_rectangle (cairo_damage_t *damage,
  71.                              const cairo_rectangle_int_t *rect);
  72.  
  73. cairo_private cairo_damage_t *
  74. _cairo_damage_add_region (cairo_damage_t *damage,
  75.                           const cairo_region_t *region);
  76.  
  77. cairo_private cairo_damage_t *
  78. _cairo_damage_reduce (cairo_damage_t *damage);
  79.  
  80. cairo_private void
  81. _cairo_damage_destroy (cairo_damage_t *damage);
  82.  
  83. CAIRO_END_DECLS
  84.  
  85. #endif /* CAIRO_DAMAGE_PRIVATE_H */
  86.