90 lines
2.2 KiB
C++
90 lines
2.2 KiB
C++
/*
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* Copyright © 2023 Behdad Esfahbod
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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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#ifndef HB_WASM_API_FACE_HH
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#define HB_WASM_API_FACE_HH
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#include "hb-wasm-api.hh"
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namespace hb {
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namespace wasm {
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HB_WASM_API (bool_t, face_copy_table) (HB_WASM_EXEC_ENV
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ptr_d(face_t, face),
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tag_t table_tag,
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ptr_d(blob_t, blob))
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{
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HB_REF2OBJ (face);
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HB_PTR_PARAM (blob_t, blob);
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if (unlikely (!blob))
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return false;
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hb_blob_t *hb_blob = hb_face_reference_table (face, table_tag);
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unsigned length;
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const char *hb_data = hb_blob_get_data (hb_blob, &length);
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if (length <= blob->length)
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{
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char *data = (char *) (validate_app_addr (blob->data, blob->length) ? addr_app_to_native (blob->data) : nullptr);
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if (unlikely (!data))
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{
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blob->length = 0;
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return false;
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}
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memcpy (data, hb_data, length);
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return true;
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}
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blob->length = length;
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blob->data = wasm_runtime_module_dup_data (module_inst, hb_data, length);
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hb_blob_destroy (hb_blob);
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if (blob->length && !blob->data)
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{
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blob->length = 0;
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return false;
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}
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return true;
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}
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HB_WASM_API (unsigned, face_get_upem) (HB_WASM_EXEC_ENV
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ptr_d(face_t, face))
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{
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HB_REF2OBJ (face);
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return hb_face_get_upem (face);
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}
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}}
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#endif /* HB_WASM_API_FACE_HH */
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