source/libs/cairo/cairo-src/src/cairo-contour-inline.h

   1 /* cairo - a vector graphics library with display and print output
   2  *
   3  * Copyright © 2011 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_CONTOUR_INLINE_H
  37 #define CAIRO_CONTOUR_INLINE_H
  38
  39 #include "cairo-contour-private.h"
  40
  41 CAIRO_BEGIN_DECLS
  42
  43 static inline cairo_int_status_t
  44 _cairo_contour_add_point (cairo_contour_t *contour,
  45                           const cairo_point_t *point)
  46 {
  47     struct _cairo_contour_chain *tail = contour->tail;
  48
  49     if (unlikely (tail->num_points == tail->size_points))
  50         return __cairo_contour_add_point (contour, point);
  51
  52     tail->points[tail->num_points++] = *point;
  53     return CAIRO_INT_STATUS_SUCCESS;
  54 }
  55
  56 static inline cairo_point_t *
  57 _cairo_contour_first_point (cairo_contour_t *c)
  58 {
  59     return &c->chain.points[0];
  60 }
  61
  62 static inline cairo_point_t *
  63 _cairo_contour_last_point (cairo_contour_t *c)
  64 {
  65     return &c->tail->points[c->tail->num_points-1];
  66 }
  67
  68 static inline void
  69 _cairo_contour_remove_last_point (cairo_contour_t *contour)
  70 {
  71     if (contour->chain.num_points == 0)
  72         return;
  73
  74     if (--contour->tail->num_points == 0)
  75         __cairo_contour_remove_last_chain (contour);
  76 }
  77
  78 CAIRO_END_DECLS
  79
  80 #endif /* CAIRO_CONTOUR_INLINE_H */