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Diffstat (limited to 'Build/source/libs/cairo/cairo-1.12.14/src/cairo-combsort-inline.h')
-rw-r--r-- | Build/source/libs/cairo/cairo-1.12.14/src/cairo-combsort-inline.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/Build/source/libs/cairo/cairo-1.12.14/src/cairo-combsort-inline.h b/Build/source/libs/cairo/cairo-1.12.14/src/cairo-combsort-inline.h new file mode 100644 index 00000000000..d359faeb5b8 --- /dev/null +++ b/Build/source/libs/cairo/cairo-1.12.14/src/cairo-combsort-inline.h @@ -0,0 +1,94 @@ +/* + * Copyright © 2008 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson + * + * Contributor(s): + * Chris Wilson <chris@chris-wilson.co.uk> + */ + +/* This fragment implements a comb sort (specifically combsort11) */ +#ifndef _HAVE_CAIRO_COMBSORT_NEWGAP +#define _HAVE_CAIRO_COMBSORT_NEWGAP +static inline unsigned int +_cairo_combsort_newgap (unsigned int gap) +{ + gap = 10 * gap / 13; + if (gap == 9 || gap == 10) + gap = 11; + if (gap < 1) + gap = 1; + return gap; +} +#endif + +#define CAIRO_COMBSORT_DECLARE(NAME, TYPE, CMP) \ +static void \ +NAME (TYPE *base, unsigned int nmemb) \ +{ \ + unsigned int gap = nmemb; \ + unsigned int i, j; \ + int swapped; \ + do { \ + gap = _cairo_combsort_newgap (gap); \ + swapped = gap > 1; \ + for (i = 0; i < nmemb-gap ; i++) { \ + j = i + gap; \ + if (CMP (base[i], base[j]) > 0 ) { \ + TYPE tmp; \ + tmp = base[i]; \ + base[i] = base[j]; \ + base[j] = tmp; \ + swapped = 1; \ + } \ + } \ + } while (swapped); \ +} + +#define CAIRO_COMBSORT_DECLARE_WITH_DATA(NAME, TYPE, CMP) \ +static void \ +NAME (TYPE *base, unsigned int nmemb, void *data) \ +{ \ + unsigned int gap = nmemb; \ + unsigned int i, j; \ + int swapped; \ + do { \ + gap = _cairo_combsort_newgap (gap); \ + swapped = gap > 1; \ + for (i = 0; i < nmemb-gap ; i++) { \ + j = i + gap; \ + if (CMP (base[i], base[j], data) > 0 ) { \ + TYPE tmp; \ + tmp = base[i]; \ + base[i] = base[j]; \ + base[j] = tmp; \ + swapped = 1; \ + } \ + } \ + } while (swapped); \ +} |