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4680 | right-hear | 1 | /* |
2 | jbig2dec |
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3 | |||
4 | Copyright (C) 2001-2002 Artifex Software, Inc. |
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5 | |||
6 | This software is distributed under license and may not |
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7 | be copied, modified or distributed except as expressly |
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8 | authorized under the terms of the license contained in |
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9 | the file LICENSE in this distribution. |
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10 | |||
11 | For further licensing information refer to http://artifex.com/ or |
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12 | contact Artifex Software, Inc., 7 Mt. Lassen Drive - Suite A-134, |
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13 | San Rafael, CA 94903, U.S.A., +1(415)492-9861. |
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14 | */ |
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15 | |||
16 | /* symbol dictionary header */ |
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17 | |||
18 | /* the results of decoding a symbol dictionary */ |
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19 | typedef struct { |
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20 | int n_symbols; |
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21 | Jbig2Image **glyphs; |
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22 | } Jbig2SymbolDict; |
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23 | |||
24 | /* decode a symbol dictionary segment and store the results */ |
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25 | int |
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26 | jbig2_symbol_dictionary(Jbig2Ctx *ctx, Jbig2Segment *segment, |
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27 | const byte *segment_data); |
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28 | |||
29 | /* get a particular glyph by index */ |
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30 | Jbig2Image * |
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31 | jbig2_sd_glyph(Jbig2SymbolDict *dict, unsigned int id); |
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32 | |||
33 | /* return a new empty symbol dict */ |
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34 | Jbig2SymbolDict * |
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35 | jbig2_sd_new(Jbig2Ctx *ctx, int n_symbols); |
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36 | |||
37 | /* release the memory associated with a symbol dict */ |
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38 | void |
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39 | jbig2_sd_release(Jbig2Ctx *ctx, Jbig2SymbolDict *dict); |
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40 | |||
41 | /* generate a new symbol dictionary by concatenating a list of |
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42 | existing dictionaries */ |
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43 | Jbig2SymbolDict * |
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44 | jbig2_sd_cat(Jbig2Ctx *ctx, int n_dicts, |
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45 | Jbig2SymbolDict **dicts); |
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46 | |||
47 | /* count the number of dictionary segments referred |
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48 | to by the given segment */ |
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49 | int |
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50 | jbig2_sd_count_referred(Jbig2Ctx *ctx, Jbig2Segment *segment); |
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51 | |||
52 | /* return an array of pointers to symbol dictionaries referred |
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53 | to by a segment */ |
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54 | Jbig2SymbolDict ** |
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55 | jbig2_sd_list_referred(Jbig2Ctx *ctx, Jbig2Segment *segment); |
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56 |