src/hb-ot-shape-complex-private.hh

   1 /*
   2  * Copyright (C) 2010  Google, Inc.
   3  *
   4  *  This is part of HarfBuzz, a text shaping library.
   5  *
   6  * Permission is hereby granted, without written agreement and without
   7  * license or royalty fees, to use, copy, modify, and distribute this
   8  * software and its documentation for any purpose, provided that the
   9  * above copyright notice and the following two paragraphs appear in
  10  * all copies of this software.
  11  *
  12  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
  13  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
  14  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
  15  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
  16  * DAMAGE.
  17  *
  18  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
  19  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  20  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
  21  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
  22  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
  23  *
  24  * Google Author(s): Behdad Esfahbod
  25  */
  26
  27 #ifndef HB_OT_SHAPE_COMPLEX_PRIVATE_HH
  28 #define HB_OT_SHAPE_COMPLEX_PRIVATE_HH
  29
  30 #include "hb-private.h"
  31
  32 #include "hb-ot-shape-private.hh"
  33
  34 HB_BEGIN_DECLS
  35
  36
  37 static inline hb_ot_complex_shaper_t
  38 hb_ot_shape_complex_categorize (const hb_segment_properties_t *props)
  39 {
  40   switch ((int) props->script) {
  41     case HB_SCRIPT_ARABIC:
  42     case HB_SCRIPT_NKO:
  43     case HB_SCRIPT_SYRIAC:
  44       return hb_ot_complex_shaper_arabic;
  45
  46     default:
  47       return hb_ot_complex_shaper_none;
  48   }
  49 }
  50
  51
  52
  53 /*
  54  * collect_features()
  55  *
  56  * Called during shape_plan().
  57  *
  58  * Shapers should use plan->map to add their features.
  59  */
  60
  61 HB_INTERNAL void _hb_ot_shape_complex_collect_features_arabic   (hb_ot_shape_plan_t *plan, const hb_segment_properties_t  *props);
  62
  63 static inline void
  64 hb_ot_shape_complex_collect_features (hb_ot_shape_plan_t *plan,
  65                                       const hb_segment_properties_t  *props)
  66 {
  67   switch (plan->shaper) {
  68     case hb_ot_complex_shaper_arabic:   _hb_ot_shape_complex_collect_features_arabic (plan, props);     return;
  69     case hb_ot_complex_shaper_none:     default:                                                        return;
  70   }
  71 }
  72
  73
  74 /* setup_masks()
  75  *
  76  * Called during shape_execute().
  77  *
  78  * Shapers should use c->plan.map to get feature masks and set on buffer.
  79  */
  80
  81 HB_INTERNAL void _hb_ot_shape_complex_setup_masks_arabic        (hb_ot_shape_context_t *c);
  82
  83 static inline void
  84 hb_ot_shape_complex_setup_masks (hb_ot_shape_context_t *c)
  85 {
  86   switch (c->plan->shaper) {
  87     case hb_ot_complex_shaper_arabic:   _hb_ot_shape_complex_setup_masks_arabic (c);    return;
  88     case hb_ot_complex_shaper_none:     default:                                        return;
  89   }
  90 }
  91
  92
  93 HB_END_DECLS
  94
  95 #endif /* HB_OT_SHAPE_COMPLEX_PRIVATE_HH */