Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/jbig2dec/jbig2_symbol_dict.h @ 46:7ee69f120f19 default tip

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>>>>> tag v1.26.5+1 for changeset b74429b0f5c4
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 17:17:30 +0200
parents b50eed0cc0ef
children
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1 /* Copyright (C) 2001-2023 Artifex Software, Inc.
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2 All Rights Reserved.
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4 This software is provided AS-IS with no warranty, either express or
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5 implied.
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7 This software is distributed under license and may not be copied,
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8 modified or distributed except as expressly authorized under the terms
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9 of the license contained in the file LICENSE in this distribution.
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11 Refer to licensing information at http://www.artifex.com or contact
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12 Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
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13 CA 94129, USA, for further information.
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14 */
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16 /*
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17 jbig2dec
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18 */
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20 #ifndef _JBIG2_SYMBOL_DICT_H
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21 #define _JBIG2_SYMBOL_DICT_H
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23 /* symbol dictionary header */
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25 /* the results of decoding a symbol dictionary */
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26 typedef struct {
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27 uint32_t n_symbols;
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28 Jbig2Image **glyphs;
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29 } Jbig2SymbolDict;
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31 /* decode a symbol dictionary segment and store the results */
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32 int jbig2_symbol_dictionary(Jbig2Ctx *ctx, Jbig2Segment *segment, const byte *segment_data);
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34 /* get a particular glyph by index */
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35 Jbig2Image *jbig2_sd_glyph(Jbig2SymbolDict *dict, unsigned int id);
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37 /* return a new empty symbol dict */
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38 Jbig2SymbolDict *jbig2_sd_new(Jbig2Ctx *ctx, uint32_t n_symbols);
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40 /* release the memory associated with a symbol dict */
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41 void jbig2_sd_release(Jbig2Ctx *ctx, Jbig2SymbolDict *dict);
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43 /* generate a new symbol dictionary by concatenating a list of
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44 existing dictionaries */
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45 Jbig2SymbolDict *jbig2_sd_cat(Jbig2Ctx *ctx, uint32_t n_dicts, Jbig2SymbolDict **dicts);
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47 /* count the number of dictionary segments referred
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48 to by the given segment */
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49 uint32_t jbig2_sd_count_referred(Jbig2Ctx *ctx, Jbig2Segment *segment);
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51 /* return an array of pointers to symbol dictionaries referred
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52 to by a segment */
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53 Jbig2SymbolDict **jbig2_sd_list_referred(Jbig2Ctx *ctx, Jbig2Segment *segment);
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55 #endif /* _JBIG2_SYMBOL_DICT_H */