source/texk/web2c/luatexdir/luafontloader/fontforge/fontforge/stemdb.c

   1 /* Copyright (C) 2005-2008 by George Williams and Alexey Kryukov */
   2 /*
   3  * Redistribution and use in source and binary forms, with or without
   4  * modification, are permitted provided that the following conditions are met:
   5
   6  * Redistributions of source code must retain the above copyright notice, this
   7  * list of conditions and the following disclaimer.
   8
   9  * Redistributions in binary form must reproduce the above copyright notice,
  10  * this list of conditions and the following disclaimer in the documentation
  11  * and/or other materials provided with the distribution.
  12
  13  * The name of the author may not be used to endorse or promote products
  14  * derived from this software without specific prior written permission.
  15
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
  19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27 #include "pfaedit.h"
  28 #include "edgelist2.h"
  29 #include "stemdb.h"
  30
  31 #include <math.h>
  32 #include <utype.h>
  33
  34 /* A diagonal end is like the top or bottom of a slash. Should we add a vertical stem at the end? */
  35 /* A diagonal corner is like the bottom of circumflex. Should we add a horizontal stem? */
  36 int hint_diagonal_ends = 0,
  37     hint_diagonal_intersections = 0,
  38     hint_bounding_boxes = 1,
  39     detect_diagonal_stems = 0;
  40