harfbuzz/src/hb-shape-plan.cc

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/*
* Copyright © 2012 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.
*
* Google Author(s): Behdad Esfahbod
*/
#include "hb-private.hh"
#include "hb-shape-plan-private.hh"
#include "hb-font-private.hh"
/*
* hb_shape_plan_t
*/
hb_shape_plan_t *
hb_shape_plan_create (hb_face_t *face,
const hb_segment_properties_t *props,
const hb_feature_t *user_features,
unsigned int num_user_features,
const char * const *shaper_list)
{
hb_shape_plan_t *shape_plan;
if (unlikely (!face))
face = hb_face_get_empty ();
if (unlikely (!props || hb_object_is_inert (face)))
return hb_shape_plan_get_empty ();
if (!(shape_plan = hb_object_create<hb_shape_plan_t> ()))
return hb_shape_plan_get_empty ();
hb_face_make_immutable (face);
return shape_plan;
}
hb_shape_plan_t *
hb_shape_plan_get_empty (void)
{
static const hb_shape_plan_t _hb_shape_plan_nil = {
HB_OBJECT_HEADER_STATIC,
};
return const_cast<hb_shape_plan_t *> (&_hb_shape_plan_nil);
}
hb_shape_plan_t *
hb_shape_plan_reference (hb_shape_plan_t *shape_plan)
{
return hb_object_reference (shape_plan);
}
void
hb_shape_plan_destroy (hb_shape_plan_t *shape_plan)
{
if (!hb_object_destroy (shape_plan)) return;
#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_DESTROY(shaper, shape_plan);
#include "hb-shaper-list.hh"
#undef HB_SHAPER_IMPLEMENT
free (shape_plan);
}