hb-subset-instancer-iup.hh

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/*

 * Copyright © 2024  Google, Inc.

 *  This is part of HarfBuzz, a text shaping library.

 * Permission is hereby granted, without written agreement and without

 * license or royalty fees, to use, copy, modify, and distribute this

 * software and its documentation for any purpose, provided that the

 * above copyright notice and the following two paragraphs appear in

 * all copies of this software.

 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR

 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES

 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN

 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH

 * DAMAGE.

 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,

 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

 * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS

 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO

 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

*/

#ifndef HB_SUBSET_INSTANCER_IUP_HH

#define HB_SUBSET_INSTANCER_IUP_HH

#include "hb-subset-plan.hh"

/* given contour points and deltas, optimize a set of referenced points within error

 * tolerance. Returns optimized referenced point indices */

HB_INTERNAL bool iup_delta_optimize (const contour_point_vector_t& contour_points,

                                     const hb_vector_t<int>& x_deltas,

                                     const hb_vector_t<int>& y_deltas,

                                     hb_vector_t<bool>& opt_indices, /* OUT */

                                     double tolerance = 0.0);

#endif /* HB_SUBSET_INSTANCER_IUP_HH */