author | prr |
Thu, 21 Jun 2018 12:54:30 -0700 | |
changeset 50826 | f5b95be8b6e2 |
parent 50648 | 2eb666723f65 |
child 54232 | 7c11a7cc7c1d |
permissions | -rw-r--r-- |
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/* |
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* Copyright © 2009 Red Hat, Inc. |
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* Copyright © 2012 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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* Red Hat Author(s): Behdad Esfahbod |
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* Google Author(s): Behdad Esfahbod |
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*/ |
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#include "hb-private.hh" |
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#include "hb-face-private.hh" |
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#include "hb-blob-private.hh" |
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#include "hb-open-file-private.hh" |
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#include "hb-ot-head-table.hh" |
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#include "hb-ot-maxp-table.hh" |
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/** |
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* hb_face_count: Get number of faces on the blob |
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* @blob: |
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* |
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* |
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* |
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* Return value: Number of faces on the blob |
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* |
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* Since: 1.7.7 |
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**/ |
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unsigned int |
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hb_face_count (hb_blob_t *blob) |
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{ |
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if (unlikely (!blob)) |
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return 0; |
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hb_blob_t *sanitized = OT::Sanitizer<OT::OpenTypeFontFile> ().sanitize (blob); |
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const OT::OpenTypeFontFile& ot = *sanitized->as<OT::OpenTypeFontFile> (); |
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return ot.get_face_count (); |
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} |
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/* |
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* hb_face_t |
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*/ |
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const hb_face_t _hb_face_nil = { |
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HB_OBJECT_HEADER_STATIC, |
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true, /* immutable */ |
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nullptr, /* reference_table_func */ |
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nullptr, /* user_data */ |
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nullptr, /* destroy */ |
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0, /* index */ |
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1000, /* upem */ |
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0, /* num_glyphs */ |
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{ |
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#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_INVALID, |
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#include "hb-shaper-list.hh" |
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#undef HB_SHAPER_IMPLEMENT |
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}, |
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nullptr, /* shape_plans */ |
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}; |
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/** |
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* hb_face_create_for_tables: |
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* @reference_table_func: (closure user_data) (destroy destroy) (scope notified): |
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* @user_data: |
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* @destroy: |
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* |
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* |
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* |
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* Return value: (transfer full) |
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* |
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* Since: 0.9.2 |
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**/ |
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hb_face_t * |
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hb_face_create_for_tables (hb_reference_table_func_t reference_table_func, |
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void *user_data, |
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hb_destroy_func_t destroy) |
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{ |
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hb_face_t *face; |
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if (!reference_table_func || !(face = hb_object_create<hb_face_t> ())) { |
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if (destroy) |
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destroy (user_data); |
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return hb_face_get_empty (); |
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} |
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face->reference_table_func = reference_table_func; |
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face->user_data = user_data; |
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face->destroy = destroy; |
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face->upem = 0; |
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face->num_glyphs = (unsigned int) -1; |
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return face; |
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} |
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typedef struct hb_face_for_data_closure_t { |
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hb_blob_t *blob; |
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unsigned int index; |
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} hb_face_for_data_closure_t; |
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static hb_face_for_data_closure_t * |
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_hb_face_for_data_closure_create (hb_blob_t *blob, unsigned int index) |
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{ |
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hb_face_for_data_closure_t *closure; |
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closure = (hb_face_for_data_closure_t *) calloc (1, sizeof (hb_face_for_data_closure_t)); |
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if (unlikely (!closure)) |
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return nullptr; |
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closure->blob = blob; |
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closure->index = index; |
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return closure; |
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} |
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static void |
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_hb_face_for_data_closure_destroy (void *data) |
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{ |
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hb_face_for_data_closure_t *closure = (hb_face_for_data_closure_t *) data; |
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hb_blob_destroy (closure->blob); |
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free (closure); |
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} |
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static hb_blob_t * |
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_hb_face_for_data_reference_table (hb_face_t *face HB_UNUSED, hb_tag_t tag, void *user_data) |
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{ |
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hb_face_for_data_closure_t *data = (hb_face_for_data_closure_t *) user_data; |
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|
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if (tag == HB_TAG_NONE) |
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return hb_blob_reference (data->blob); |
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|
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const OT::OpenTypeFontFile &ot_file = *data->blob->as<OT::OpenTypeFontFile> (); |
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const OT::OpenTypeFontFace &ot_face = ot_file.get_face (data->index); |
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|
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const OT::OpenTypeTable &table = ot_face.get_table_by_tag (tag); |
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|
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hb_blob_t *blob = hb_blob_create_sub_blob (data->blob, table.offset, table.length); |
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|
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return blob; |
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} |
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|
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/** |
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* hb_face_create: (Xconstructor) |
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* @blob: |
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* @index: |
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* |
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* |
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* |
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* Return value: (transfer full): |
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* |
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* Since: 0.9.2 |
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**/ |
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hb_face_t * |
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hb_face_create (hb_blob_t *blob, |
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unsigned int index) |
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{ |
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hb_face_t *face; |
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|
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if (unlikely (!blob)) |
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blob = hb_blob_get_empty (); |
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|
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hb_face_for_data_closure_t *closure = _hb_face_for_data_closure_create (OT::Sanitizer<OT::OpenTypeFontFile>().sanitize (hb_blob_reference (blob)), index); |
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|
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if (unlikely (!closure)) |
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return hb_face_get_empty (); |
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195 |
|
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face = hb_face_create_for_tables (_hb_face_for_data_reference_table, |
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closure, |
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_hb_face_for_data_closure_destroy); |
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199 |
|
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face->index = index; |
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|
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return face; |
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} |
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204 |
|
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205 |
/** |
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* hb_face_get_empty: |
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207 |
* |
48274 | 208 |
* |
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209 |
* |
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* Return value: (transfer full) |
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211 |
* |
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212 |
* Since: 0.9.2 |
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**/ |
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hb_face_t * |
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hb_face_get_empty (void) |
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{ |
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return const_cast<hb_face_t *> (&_hb_face_nil); |
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} |
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|
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|
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221 |
/** |
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222 |
* hb_face_reference: (skip) |
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* @face: a face. |
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224 |
* |
48274 | 225 |
* |
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* |
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* Return value: |
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228 |
* |
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229 |
* Since: 0.9.2 |
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**/ |
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231 |
hb_face_t * |
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hb_face_reference (hb_face_t *face) |
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{ |
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return hb_object_reference (face); |
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} |
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236 |
|
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237 |
/** |
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* hb_face_destroy: (skip) |
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* @face: a face. |
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240 |
* |
48274 | 241 |
* |
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* |
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* Since: 0.9.2 |
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244 |
**/ |
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245 |
void |
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hb_face_destroy (hb_face_t *face) |
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{ |
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if (!hb_object_destroy (face)) return; |
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|
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for (hb_face_t::plan_node_t *node = face->shape_plans; node; ) |
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{ |
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hb_face_t::plan_node_t *next = node->next; |
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hb_shape_plan_destroy (node->shape_plan); |
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free (node); |
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node = next; |
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256 |
} |
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257 |
|
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#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_DESTROY(shaper, face); |
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#include "hb-shaper-list.hh" |
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#undef HB_SHAPER_IMPLEMENT |
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|
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if (face->destroy) |
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face->destroy (face->user_data); |
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|
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free (face); |
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266 |
} |
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267 |
|
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268 |
/** |
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* hb_face_set_user_data: (skip) |
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* @face: a face. |
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* @key: |
272 |
* @data: |
|
273 |
* @destroy: |
|
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* @replace: |
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* |
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* |
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* |
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* Return value: |
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279 |
* |
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280 |
* Since: 0.9.2 |
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281 |
**/ |
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282 |
hb_bool_t |
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hb_face_set_user_data (hb_face_t *face, |
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hb_user_data_key_t *key, |
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void * data, |
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hb_destroy_func_t destroy, |
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hb_bool_t replace) |
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{ |
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return hb_object_set_user_data (face, key, data, destroy, replace); |
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} |
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291 |
|
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/** |
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|
293 |
* hb_face_get_user_data: (skip) |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
294 |
* @face: a face. |
48274 | 295 |
* @key: |
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prr
parents:
diff
changeset
|
296 |
* |
48274 | 297 |
* |
34414
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prr
parents:
diff
changeset
|
298 |
* |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
299 |
* Return value: (transfer none): |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
300 |
* |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
301 |
* Since: 0.9.2 |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
302 |
**/ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
303 |
void * |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
304 |
hb_face_get_user_data (hb_face_t *face, |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
305 |
hb_user_data_key_t *key) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
306 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
307 |
return hb_object_get_user_data (face, key); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
308 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
309 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
310 |
/** |
e496a8d8fc8a
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prr
parents:
diff
changeset
|
311 |
* hb_face_make_immutable: |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
312 |
* @face: a face. |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
313 |
* |
48274 | 314 |
* |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
315 |
* |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
316 |
* Since: 0.9.2 |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
317 |
**/ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
318 |
void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
319 |
hb_face_make_immutable (hb_face_t *face) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
320 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
321 |
if (unlikely (hb_object_is_inert (face))) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
322 |
return; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
323 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
324 |
face->immutable = true; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
325 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
326 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
327 |
/** |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
328 |
* hb_face_is_immutable: |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
329 |
* @face: a face. |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
330 |
* |
48274 | 331 |
* |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
332 |
* |
48274 | 333 |
* Return value: |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
334 |
* |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
335 |
* Since: 0.9.2 |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
336 |
**/ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
337 |
hb_bool_t |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
338 |
hb_face_is_immutable (hb_face_t *face) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
339 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
340 |
return face->immutable; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
341 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
342 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
343 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
344 |
/** |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
345 |
* hb_face_reference_table: |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
346 |
* @face: a face. |
48274 | 347 |
* @tag: |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
348 |
* |
48274 | 349 |
* |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
350 |
* |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
351 |
* Return value: (transfer full): |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
352 |
* |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
353 |
* Since: 0.9.2 |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
354 |
**/ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
355 |
hb_blob_t * |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
356 |
hb_face_reference_table (hb_face_t *face, |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
357 |
hb_tag_t tag) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
358 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
359 |
return face->reference_table (tag); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
360 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
361 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
362 |
/** |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
363 |
* hb_face_reference_blob: |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
364 |
* @face: a face. |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
365 |
* |
48274 | 366 |
* |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
367 |
* |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
368 |
* Return value: (transfer full): |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
369 |
* |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
370 |
* Since: 0.9.2 |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
371 |
**/ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
372 |
hb_blob_t * |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
373 |
hb_face_reference_blob (hb_face_t *face) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
374 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
375 |
return face->reference_table (HB_TAG_NONE); |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
376 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
377 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
378 |
/** |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
379 |
* hb_face_set_index: |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
380 |
* @face: a face. |
48274 | 381 |
* @index: |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
382 |
* |
48274 | 383 |
* |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
384 |
* |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
385 |
* Since: 0.9.2 |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
386 |
**/ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
387 |
void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
388 |
hb_face_set_index (hb_face_t *face, |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
389 |
unsigned int index) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
390 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
391 |
if (face->immutable) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
392 |
return; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
393 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
394 |
face->index = index; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
395 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
396 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
397 |
/** |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
398 |
* hb_face_get_index: |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
399 |
* @face: a face. |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
400 |
* |
48274 | 401 |
* |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
402 |
* |
48274 | 403 |
* Return value: |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
404 |
* |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
405 |
* Since: 0.9.2 |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
406 |
**/ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
407 |
unsigned int |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
408 |
hb_face_get_index (hb_face_t *face) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
409 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
410 |
return face->index; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
411 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
412 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
413 |
/** |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
414 |
* hb_face_set_upem: |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
415 |
* @face: a face. |
48274 | 416 |
* @upem: |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
417 |
* |
48274 | 418 |
* |
34414
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
419 |
* |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
420 |
* Since: 0.9.2 |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
421 |
**/ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
422 |
void |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
423 |
hb_face_set_upem (hb_face_t *face, |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
424 |
unsigned int upem) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
425 |
{ |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
426 |
if (face->immutable) |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
427 |
return; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
428 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
429 |
face->upem = upem; |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
430 |
} |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
431 |
|
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
432 |
/** |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
433 |
* hb_face_get_upem: |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
434 |
* @face: a face. |
e496a8d8fc8a
8143177: Integrate harfbuzz opentype layout engine per JEP 258
prr
parents:
diff
changeset
|
435 |
* |
48274 | 436 |
* |
34414
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437 |
* |
48274 | 438 |
* Return value: |
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changeset
|
439 |
* |
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changeset
|
440 |
* Since: 0.9.2 |
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changeset
|
441 |
**/ |
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|
442 |
unsigned int |
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|
443 |
hb_face_get_upem (hb_face_t *face) |
e496a8d8fc8a
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parents:
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changeset
|
444 |
{ |
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changeset
|
445 |
return face->get_upem (); |
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diff
changeset
|
446 |
} |
e496a8d8fc8a
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diff
changeset
|
447 |
|
e496a8d8fc8a
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|
448 |
void |
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|
449 |
hb_face_t::load_upem (void) const |
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parents:
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|
450 |
{ |
50352 | 451 |
hb_blob_t *head_blob = OT::Sanitizer<OT::head>().sanitize (reference_table (HB_OT_TAG_head)); |
50826 | 452 |
const OT::head *head_table = head_blob->as<OT::head> (); |
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|
453 |
upem = head_table->get_upem (); |
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parents:
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|
454 |
hb_blob_destroy (head_blob); |
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changeset
|
455 |
} |
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changeset
|
456 |
|
e496a8d8fc8a
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changeset
|
457 |
/** |
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changeset
|
458 |
* hb_face_set_glyph_count: |
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changeset
|
459 |
* @face: a face. |
48274 | 460 |
* @glyph_count: |
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|
461 |
* |
48274 | 462 |
* |
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|
463 |
* |
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changeset
|
464 |
* Since: 0.9.7 |
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parents:
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changeset
|
465 |
**/ |
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changeset
|
466 |
void |
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changeset
|
467 |
hb_face_set_glyph_count (hb_face_t *face, |
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parents:
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changeset
|
468 |
unsigned int glyph_count) |
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parents:
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changeset
|
469 |
{ |
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changeset
|
470 |
if (face->immutable) |
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|
471 |
return; |
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changeset
|
472 |
|
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|
473 |
face->num_glyphs = glyph_count; |
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changeset
|
474 |
} |
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changeset
|
475 |
|
e496a8d8fc8a
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changeset
|
476 |
/** |
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changeset
|
477 |
* hb_face_get_glyph_count: |
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parents:
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changeset
|
478 |
* @face: a face. |
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changeset
|
479 |
* |
48274 | 480 |
* |
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|
481 |
* |
48274 | 482 |
* Return value: |
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|
483 |
* |
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changeset
|
484 |
* Since: 0.9.7 |
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changeset
|
485 |
**/ |
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|
486 |
unsigned int |
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|
487 |
hb_face_get_glyph_count (hb_face_t *face) |
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|
488 |
{ |
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|
489 |
return face->get_num_glyphs (); |
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changeset
|
490 |
} |
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changeset
|
491 |
|
e496a8d8fc8a
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|
492 |
void |
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changeset
|
493 |
hb_face_t::load_num_glyphs (void) const |
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parents:
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changeset
|
494 |
{ |
50352 | 495 |
hb_blob_t *maxp_blob = OT::Sanitizer<OT::maxp>().sanitize (reference_table (HB_OT_TAG_maxp)); |
50826 | 496 |
const OT::maxp *maxp_table = maxp_blob->as<OT::maxp> (); |
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|
497 |
num_glyphs = maxp_table->get_num_glyphs (); |
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parents:
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|
498 |
hb_blob_destroy (maxp_blob); |
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parents:
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changeset
|
499 |
} |
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|
500 |
|
48274 | 501 |
/** |
502 |
* hb_face_get_table_tags: |
|
503 |
* @face: a face. |
|
504 |
* |
|
505 |
* Retrieves table tags for a face, if possible. |
|
506 |
* |
|
507 |
* Return value: total number of tables, or 0 if not possible to list. |
|
508 |
* |
|
509 |
* Since: 1.6.0 |
|
510 |
**/ |
|
511 |
unsigned int |
|
512 |
hb_face_get_table_tags (hb_face_t *face, |
|
513 |
unsigned int start_offset, |
|
514 |
unsigned int *table_count, /* IN/OUT */ |
|
515 |
hb_tag_t *table_tags /* OUT */) |
|
516 |
{ |
|
50648
2eb666723f65
8204509: Fix compilation error in harfbuzz 1.7.6 for Solaris Developer Studio 12.6
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parents:
50352
diff
changeset
|
517 |
if (face->destroy != (hb_destroy_func_t) _hb_face_for_data_closure_destroy) |
48274 | 518 |
{ |
519 |
if (table_count) |
|
520 |
*table_count = 0; |
|
521 |
return 0; |
|
522 |
} |
|
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|
523 |
|
48274 | 524 |
hb_face_for_data_closure_t *data = (hb_face_for_data_closure_t *) face->user_data; |
525 |
||
50826 | 526 |
const OT::OpenTypeFontFile &ot_file = *data->blob->as<OT::OpenTypeFontFile> (); |
48274 | 527 |
const OT::OpenTypeFontFace &ot_face = ot_file.get_face (data->index); |
528 |
||
529 |
return ot_face.get_table_tags (start_offset, table_count, table_tags); |
|
530 |
} |