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Diffstat (limited to '')
-rw-r--r-- | gfx/harfbuzz/src/hb-static.cc | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/gfx/harfbuzz/src/hb-static.cc b/gfx/harfbuzz/src/hb-static.cc new file mode 100644 index 0000000000..f5b7fa50a0 --- /dev/null +++ b/gfx/harfbuzz/src/hb-static.cc @@ -0,0 +1,112 @@ +/* + * Copyright © 2018 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.hh" + +#include "hb-open-type.hh" +#include "hb-face.hh" + +#include "hb-aat-layout-common.hh" +#include "hb-aat-layout-feat-table.hh" +#include "hb-ot-layout-common.hh" +#include "hb-ot-cmap-table.hh" +#include "hb-ot-head-table.hh" +#include "hb-ot-maxp-table.hh" + +#ifndef HB_NO_VISIBILITY +#include "hb-ot-name-language-static.hh" + +uint64_t const _hb_NullPool[(HB_NULL_POOL_SIZE + sizeof (uint64_t) - 1) / sizeof (uint64_t)] = {}; +/*thread_local*/ uint64_t _hb_CrapPool[(HB_NULL_POOL_SIZE + sizeof (uint64_t) - 1) / sizeof (uint64_t)] = {}; + +DEFINE_NULL_NAMESPACE_BYTES (OT, Index) = {0xFF,0xFF}; +DEFINE_NULL_NAMESPACE_BYTES (OT, LangSys) = {0x00,0x00, 0xFF,0xFF, 0x00,0x00}; +DEFINE_NULL_NAMESPACE_BYTES (OT, RangeRecord) = {0x00,0x01, 0x00,0x00, 0x00, 0x00}; +DEFINE_NULL_NAMESPACE_BYTES (OT, CmapSubtableLongGroup) = {0x00,0x00,0x00,0x01, 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00}; +DEFINE_NULL_NAMESPACE_BYTES (AAT, SettingName) = {0xFF,0xFF, 0xFF,0xFF}; +/* Hand-coded because Lookup is a template. Sad. */ +const unsigned char _hb_Null_AAT_Lookup[2] = {0xFF, 0xFF}; + + + +/* hb_face_t */ + +unsigned int +hb_face_t::load_num_glyphs () const +{ + hb_sanitize_context_t c = hb_sanitize_context_t (); + c.set_num_glyphs (0); /* So we don't recurse ad infinitum. */ + hb_blob_t *maxp_blob = c.reference_table<OT::maxp> (this); + const OT::maxp *maxp_table = maxp_blob->as<OT::maxp> (); + + unsigned int ret = maxp_table->get_num_glyphs (); + num_glyphs.set_relaxed (ret); + hb_blob_destroy (maxp_blob); + return ret; +} + +unsigned int +hb_face_t::load_upem () const +{ + unsigned int ret = table.head->get_upem (); + upem.set_relaxed (ret); + return ret; +} + + +/* hb_user_data_array_t */ + +bool +hb_user_data_array_t::set (hb_user_data_key_t *key, + void * data, + hb_destroy_func_t destroy, + hb_bool_t replace) +{ + if (!key) + return false; + + if (replace) { + if (!data && !destroy) { + items.remove (key, lock); + return true; + } + } + hb_user_data_item_t item = {key, data, destroy}; + bool ret = !!items.replace_or_insert (item, lock, (bool) replace); + + return ret; +} + +void * +hb_user_data_array_t::get (hb_user_data_key_t *key) +{ + hb_user_data_item_t item = {nullptr, nullptr, nullptr}; + + return items.find (key, &item, lock) ? item.data : nullptr; +} + + +#endif |