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annotate src/dmzlib.h @ 2294:7f6ba3b32f54

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Cleanups.
author Matti Hamalainen <ccr@tnsp.org>
date Wed, 03 Jul 2019 10:28:43 +0300
parents 043b5942fdb6
children 9807ae37ad69
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1 /*
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2 * DMLib
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3 * -- ZLib implementation
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4 * Public domain zlib decode v0.2 by Sean Barrett 2006-11-18
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5 * Modified and reformatted for DMLib by Matti 'ccr' Hamalainen
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6 */
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7 #ifndef DMZLIB_H
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8 #define DMZLIB_H
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9
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10 #include "dmlib.h"
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11
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12 #ifdef __cplusplus
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13 extern "C" {
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14 #endif
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15
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16
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17 #define DM_ZLIB_HFAST_BITS 9 // accelerate all cases in default tables
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18 #define DM_ZLIB_HFAST_SIZE (1 << DM_ZLIB_HFAST_BITS)
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19 #define DM_ZLIB_HFAST_MASK (DM_ZLIB_HFAST_SIZE - 1)
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20
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21 #define DM_ZLIB_HUFF_CODES (288)
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22 #define DM_ZLIB_HUFF_DIST (32)
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24
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25 typedef struct
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26 {
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27 BOOL initialized;
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28
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29 Uint16 fast[DM_ZLIB_HFAST_SIZE];
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30 Uint16 firstCode[16];
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31 int maxCode[16 + 1];
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32 Uint16 firstSymbol[16];
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33
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34 Uint8 size[DM_ZLIB_HUFF_CODES];
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35 Uint16 value[DM_ZLIB_HUFF_CODES];
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36 } DMZHuffmanContext;
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37
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38
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39 typedef struct
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40 {
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41 Uint8 *inBuffer, *inBufferStart, *inBufferEnd;
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42
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43 int window;
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44 int numBits;
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45 Uint32 codeBuffer;
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47 Uint8 *outBuffer, *outBufferStart, *outBufferEnd;
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48 BOOL expandable;
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50 DMZHuffmanContext zlength, zdistance;
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51 } DMZLibContext;
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52
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53
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54 int dmZLibInit();
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55 void dmZLibClose();
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56
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57 int dmZLibInitInflate(DMZLibContext *ctx);
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58 void dmZLibCloseInflate(DMZLibContext *ctx);
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59 int dmZLibParseHeader(DMZLibContext * ctx, BOOL checkPNG);
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60 int dmZLibInflate(DMZLibContext * ctx);
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62
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63 #ifdef __cplusplus
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64 }
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65 #endif
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66
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67 #endif // DMZLIB_H