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

   1 /*
   2  * Copyright © 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.hh"
  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   {
  42     case HB_SCRIPT_ARABIC:
  43     case HB_SCRIPT_NKO:
  44     case HB_SCRIPT_SYRIAC:
  45     case HB_SCRIPT_MANDAIC:
  46     case HB_SCRIPT_MONGOLIAN:
  47       return hb_ot_complex_shaper_arabic;
  48
  49     default:
  50       return hb_ot_complex_shaper_none;
  51   }
  52 }
  53
  54
  55
  56 /*
  57  * collect_features()
  58  *
  59  * Called during shape_plan().
  60  *
  61  * Shapers should use plan->map to add their features.
  62  */
  63
  64 HB_INTERNAL void _hb_ot_shape_complex_collect_features_arabic   (hb_ot_shape_plan_t *plan, const hb_segment_properties_t  *props);
  65
  66 static inline void
  67 hb_ot_shape_complex_collect_features (hb_ot_shape_plan_t *plan,
  68                                       const hb_segment_properties_t  *props)
  69 {
  70   switch (plan->shaper) {
  71     case hb_ot_complex_shaper_arabic:   _hb_ot_shape_complex_collect_features_arabic (plan, props);     return;
  72     case hb_ot_complex_shaper_none:     default:                                                        return;
  73   }
  74 }
  75
  76
  77 /* setup_masks()
  78  *
  79  * Called during shape_execute().
  80  *
  81  * Shapers should use c->plan.map to get feature masks and set on buffer.
  82  */
  83
  84 HB_INTERNAL void _hb_ot_shape_complex_setup_masks_arabic        (hb_ot_shape_context_t *c);
  85
  86 static inline void
  87 hb_ot_shape_complex_setup_masks (hb_ot_shape_context_t *c)
  88 {
  89   switch (c->plan->shaper) {
  90     case hb_ot_complex_shaper_arabic:   _hb_ot_shape_complex_setup_masks_arabic (c);    return;
  91     case hb_ot_complex_shaper_none:     default:                                        return;
  92   }
  93 }
  94
  95
  96 HB_END_DECLS
  97
  98 #endif /* HB_OT_SHAPE_COMPLEX_PRIVATE_HH */