HarfBuzz text shaping engine
http://harfbuzz.github.io/
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96 lines
3.0 KiB
96 lines
3.0 KiB
/* |
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* Copyright © 2017 Google, Inc. |
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* |
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* This is part of HarfBuzz, a text shaping library. |
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* |
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* Permission is hereby granted, without written agreement and without |
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* license or royalty fees, to use, copy, modify, and distribute this |
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* software and its documentation for any purpose, provided that the |
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* above copyright notice and the following two paragraphs appear in |
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* all copies of this software. |
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* |
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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* DAMAGE. |
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* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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* |
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* Google Author(s): Behdad Esfahbod |
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*/ |
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#include "hb-open-type-private.hh" |
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#include "hb-ot-layout-private.hh" |
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#include "hb-ot-layout-gsubgpos-private.hh" |
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#include "hb-aat-layout-private.hh" |
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#include "hb-aat-layout-ankr-table.hh" |
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#include "hb-aat-layout-bsln-table.hh" // Just so we compile it; unused otherwise. |
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#include "hb-aat-layout-feat-table.hh" // Just so we compile it; unused otherwise. |
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#include "hb-aat-layout-kerx-table.hh" |
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#include "hb-aat-layout-morx-table.hh" |
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#include "hb-aat-layout-trak-table.hh" |
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#include "hb-aat-ltag-table.hh" // Just so we compile it; unused otherwise. |
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/* |
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* morx/kerx/trak/ankr |
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*/ |
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static inline const AAT::morx& |
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_get_morx (hb_face_t *face, hb_blob_t **blob = nullptr) |
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{ |
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if (unlikely (!hb_ot_shaper_face_data_ensure (face))) |
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{ |
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if (blob) |
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*blob = hb_blob_get_empty (); |
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return Null(AAT::morx); |
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} |
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hb_ot_layout_t * layout = hb_ot_layout_from_face (face); |
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const AAT::morx& morx = *(layout->table.morx.get ()); |
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if (blob) |
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*blob = layout->table.morx.get_blob (); |
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return morx; |
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} |
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// static inline void |
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// _hb_aat_layout_create (hb_face_t *face) |
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// { |
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// hb_blob_t *morx_blob = hb_sanitize_context_t ().reference_table<AAT::morx> (face); |
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// morx_blob->as<AAT::morx> (); |
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// if (0) |
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// { |
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// morx_blob->as<AAT::Lookup<OT::GlyphID> > ()->get_value (1, face->get_num_glyphs ()); |
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// } |
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// } |
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void |
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hb_aat_layout_substitute (hb_font_t *font, hb_buffer_t *buffer) |
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{ |
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hb_blob_t *blob; |
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const AAT::morx& morx = _get_morx (font->face, &blob); |
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AAT::hb_aat_apply_context_t c (font, buffer, blob); |
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morx.apply (&c); |
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} |
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void |
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hb_aat_layout_position (hb_font_t *font, hb_buffer_t *buffer) |
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{ |
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#if 0 |
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hb_blob_t *blob; |
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const AAT::ankr& ankr = _get_ankr (font->face, &blob); |
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const AAT::kerx& kerx = _get_kerx (font->face, &blob); |
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const AAT::trak& trak = _get_trak (font->face, &blob); |
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AAT::hb_aat_apply_context_t c (font, buffer, blob); |
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kerx.apply (&c, &ankr); |
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trak.apply (&c); |
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#endif |
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}
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