1 | /**************************************************************************
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2 | *
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3 | * huffman_mem.c -- Huffman coding functions to memory
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4 | * Copyright (C) 1994 Neil Sharman
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5 | *
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6 | * This program is free software; you can redistribute it and/or modify
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7 | * it under the terms of the GNU General Public License as published by
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8 | * the Free Software Foundation; either version 2 of the License, or
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9 | * (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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19 | *
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20 | **************************************************************************/
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21 |
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22 | #include "sysfuncs.h"
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23 | #include "bitio_m.h"
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24 | #include "bitio_m_mem.h"
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25 | #include "huffman.h"
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26 |
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27 | #if 0
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28 | int fprintf (FILE *, const char *,...);
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29 | #endif
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30 |
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31 | void
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32 | BIO_Mem_Huff_Encode (mg_u_long val, mg_u_long *codes,
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33 | char *clens, mem_bitio_state * bs)
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34 | {
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35 | ENCODE_CONTINUE (*bs)
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36 | HUFF_ENCODE (val, codes, clens);
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37 | ENCODE_PAUSE (*bs)
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38 | }
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39 |
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40 | mg_u_long
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41 | BIO_Mem_Huff_Decode (mg_u_long *mincodes,
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42 | mg_u_long **values, mem_bitio_state * bs)
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43 | {
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44 | mg_u_long val;
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45 | DECODE_CONTINUE (*bs)
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46 | HUFF_DECODE (val, mincodes, values);
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47 | DECODE_PAUSE (*bs)
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48 | return (val);
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49 | }
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