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annotate sidlib.h @ 367:f73270cabde2

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Bump copyright years.
author Matti Hamalainen <ccr@tnsp.org>
date Sat, 02 Jan 2021 11:37:13 +0200
parents 5711c23e40cc
children 22e8ee2df9ac
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1 /*
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2 * SIDInfoLib - Way too simplistic PSID/RSID file library
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3 * Programmed and designed by Matti 'ccr' Hämäläinen <ccr@tnsp.org>
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4 * (C) Copyright 2014-2021 Tecnic Software productions (TNSP)
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5 */
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6 #ifndef SIDLIB_H
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7 #define SIDLIB_H 1
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8
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9 #include "th_util.h"
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10 #include "th_ioctx.h"
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11 #include "th_crypto.h"
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12 #include "th_datastruct.h"
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13
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14
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15 #ifdef __cplusplus
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16 extern "C" {
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17 #endif
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18
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20 //
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21 // Some constants
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22 //
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23 #define SIDLIB_PSID_MAGIC_LEN (4)
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24 #define SIDLIB_PSID_STR_LEN (32)
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25 #define SIDLIB_BUFFER_SIZE (1024 * 16)
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26
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27
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28 enum
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29 {
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30 // Player flags
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31 PSF_PLAYER_TYPE = 0x01, // 0 = built-in, 1 = Compute! SIDPlayer MUS
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32 PSF_PLAYSID_TUNE = 0x02, // 0 = Real C64-compatible, 1 = PlaySID specific (v2NG)
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33
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34 // Video standard used (v2NG+)
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35 PSF_CLOCK_UNKNOWN = 0x00,
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36 PSF_CLOCK_PAL = 0x01,
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37 PSF_CLOCK_NTSC = 0x02,
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38 PSF_CLOCK_ANY = 0x03,
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39 PSF_CLOCK_MASK = 0x03,
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40
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41 // SID model (v2NG+)
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42 PSF_MODEL_UNKNOWN = 0x00,
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43 PSF_MODEL_MOS6581 = 0x01,
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44 PSF_MODEL_MOS8580 = 0x02,
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45 PSF_MODEL_ANY = 0x03,
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46 PSF_MODEL_MASK = 0x03,
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47 };
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48
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49
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50 // STIL database subtune fields, see SIDLibSTILSubTune
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51 enum
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52 {
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53 STF_NAME,
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54 STF_AUTHOR,
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55 STF_TITLE,
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56 STF_INFO,
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57 STF_ARTIST,
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58 STF_COMMENT,
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59
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60 STF_LAST
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61 };
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62
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63
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64 //
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65 // Structures
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66 //
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67 typedef struct
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68 {
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69 th_llist_t node;
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71 th_md5hash_t hash; // MD5 hash-digest
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72 int nlengths; // Number of lengths
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73 int *lengths; // Lengths in seconds
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74 } SIDLibSLDBNode;
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77 typedef struct
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78 {
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79 SIDLibSLDBNode *nodes, **pindex;
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80 size_t nnodes;
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81 } SIDLibSLDB;
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84 typedef struct
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85 {
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86 int ndata;
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87 char **data; // Converted through SIDLibChConvCtx if conversion is used
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88 } SIDLibSTILField;
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89
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91 typedef struct
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92 {
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93 int tune; // Subtune number this structure contains information for
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94 SIDLibSTILField fields[STF_LAST];
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95 } SIDLibSTILSubTune;
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97
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98 typedef struct
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99 {
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100 th_llist_t node;
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101
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102 char *filename; // HVSC path/filename (NOT converted through SIDLibChConvCtx)
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103 size_t nsubtunes; // Number of subtune information structures
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104 SIDLibSTILSubTune *subtunes; // NOTE! Subtunes are in undefined order here
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105 // (through with correct SIDLibSTILSubTune::tune number, of course)
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106 // unless sidlib_stildb_build_index() has been run on the SIDLibSTILDB
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107
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108 // Internal use only
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109 SIDLibSLDBNode *lengths;
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110 } SIDLibSTILNode;
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111
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112
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113 typedef struct
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114 {
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115 SIDLibSTILNode *nodes, **pindex;
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116 size_t nnodes;
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117 } SIDLibSTILDB;
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118
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119
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120 typedef struct
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121 {
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122 char magic[SIDLIB_PSID_MAGIC_LEN + 1]; // "PSID" / "RSID" magic identifier
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123 uint16_t
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124 version, // Version number
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125 dataOffset, // Start of actual c64 data in file
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126 loadAddress, // Loading address
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127 initAddress, // Initialization address
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128 playAddress, // Play one frame
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129 nSongs, // Number of subsongs
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130 startSong; // Default starting song
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131 uint32_t speed; // Speed
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132
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133 char *sidName; // Descriptive text-fields, ASCIIZ
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134 char *sidAuthor; // Converted through SIDLibChConvCtx if conversion is used
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135 char *sidCopyright;
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136
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137 // PSIDv2+ data
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138 uint16_t flags; // Flags
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139 uint8_t startPage, pageLength;
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140 uint8_t sid2Addr, sid3Addr;
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141
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142 // Extra data
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143 BOOL isRSID;
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144 size_t dataSize; // Total size of data - header
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145 th_md5hash_t hash; // Songlength database hash
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146
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147 // Internal use only
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148 BOOL allocated; // TRUE if structure has been allocated
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149 SIDLibSLDBNode *lengths; // Songlength information node pointer
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150 SIDLibSTILNode *stil; // STIL database node pointer
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151 } SIDLibPSIDHeader;
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152
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153
319
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154 typedef struct SIDLibChConvCtx
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155 {
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156 void *data;
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157 char* (*convert)(struct SIDLibChConvCtx *ctx, const char *str);
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158 } SIDLibChConvCtx;
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159
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160
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161 //
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162 // Globals
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163 //
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164 extern const char * sidlib_stil_fields_uc[STF_LAST];
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165 extern const char * sidlib_stil_fields_lc[STF_LAST];
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166
266
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167
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168 //
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169 // Functions
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170 //
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171 int sidlib_read_sid_file(th_ioctx *ctx, SIDLibPSIDHeader *psid, const BOOL newSLDB, SIDLibChConvCtx *chconv);
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172 int sidlib_read_sid_file_alloc(th_ioctx *ctx, SIDLibPSIDHeader **ppsid, const BOOL newSLDB, SIDLibChConvCtx *chconv);
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173 void sidlib_free_sid_file(SIDLibPSIDHeader *psid);
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174
222
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175 const char * sidlib_get_sid_clock_str(const int flags);
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176 const char * sidlib_get_sid_model_str(const int flags);
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177
236
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178 int sidlib_sldb_new(SIDLibSLDB **pdbh);
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179 int sidlib_sldb_read(th_ioctx *ctx, SIDLibSLDB *dbh);
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180 int sidlib_sldb_build_index(SIDLibSLDB *dbh);
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181 void sidlib_sldb_free(SIDLibSLDB *dbh);
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182 SIDLibSLDBNode * sidlib_sldb_get_by_hash(SIDLibSLDB *dbh, th_md5hash_t hash);
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183
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184 int sidlib_stildb_new(SIDLibSTILDB **pdbh);
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185 int sidlib_stildb_read(th_ioctx *ctx, SIDLibSTILDB *dbh, SIDLibChConvCtx *chconv);
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186 int sidlib_stildb_build_index(SIDLibSTILDB *dbh);
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187 void sidlib_stildb_free(SIDLibSTILDB *dbh);
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188 SIDLibSTILNode * sidlib_stildb_get_node(SIDLibSTILDB *dbh, const char *filename);
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189 SIDLibSTILSubTune *sidlib_stildb_find_subtune(SIDLibSTILNode *node, const int nsubtune);
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190
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191
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192 #ifdef __cplusplus
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193 }
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194 #endif
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195 #endif // SIDLIB_H