56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
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/* Copyright (C) 2001-2019 Artifex Software, Inc.
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All Rights Reserved.
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This software is provided AS-IS with no warranty, either express or
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implied.
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This software is distributed under license and may not be copied,
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modified or distributed except as expressly authorized under the terms
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of the license contained in the file LICENSE in this distribution.
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Refer to licensing information at http://www.artifex.com or contact
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Artifex Software, Inc., 1305 Grant Avenue - Suite 200, Novato,
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CA 94945, U.S.A., +1(415)492-9861, for further information.
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*/
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/*
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jbig2dec
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*/
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#ifndef _JBIG2_SYMBOL_DICT_H
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#define _JBIG2_SYMBOL_DICT_H
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/* symbol dictionary header */
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/* the results of decoding a symbol dictionary */
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typedef struct {
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uint32_t n_symbols;
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Jbig2Image **glyphs;
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} Jbig2SymbolDict;
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/* decode a symbol dictionary segment and store the results */
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int jbig2_symbol_dictionary(Jbig2Ctx *ctx, Jbig2Segment *segment, const byte *segment_data);
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/* get a particular glyph by index */
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Jbig2Image *jbig2_sd_glyph(Jbig2SymbolDict *dict, unsigned int id);
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/* return a new empty symbol dict */
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Jbig2SymbolDict *jbig2_sd_new(Jbig2Ctx *ctx, uint32_t n_symbols);
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/* release the memory associated with a symbol dict */
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void jbig2_sd_release(Jbig2Ctx *ctx, Jbig2SymbolDict *dict);
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/* generate a new symbol dictionary by concatenating a list of
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existing dictionaries */
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Jbig2SymbolDict *jbig2_sd_cat(Jbig2Ctx *ctx, uint32_t n_dicts, Jbig2SymbolDict **dicts);
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/* count the number of dictionary segments referred
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to by the given segment */
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uint32_t jbig2_sd_count_referred(Jbig2Ctx *ctx, Jbig2Segment *segment);
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/* return an array of pointers to symbol dictionaries referred
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to by a segment */
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Jbig2SymbolDict **jbig2_sd_list_referred(Jbig2Ctx *ctx, Jbig2Segment *segment);
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#endif /* _JBIG2_SYMBOL_DICT_H */
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