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annotate src/xs_sidplay1.cc @ 72:e3b205a6bc7e

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Lots re-arranging and new code for upcoming modularization.
author Matti Hamalainen <ccr@tnsp.org>
date Fri, 12 Sep 2003 03:26:04 +0000
parents 2b32c75729ce
children 2bc607888f53
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71
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1 /*
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2 XMMS-SID - SIDPlay input plugin for X MultiMedia System (XMMS)
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3
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4 libSIDPlay v1 support
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5
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6 Written by Matti "ccr" Hamalainen <ccr@tnsp.org>
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7
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8 This program is free software; you can redistribute it and/or modify
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9 it under the terms of the GNU General Public License as published by
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10 the Free Software Foundation; either version 2 of the License, or
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11 (at your option) any later version.
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12
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13 This program is distributed in the hope that it will be useful,
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14 but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 GNU General Public License for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with this program; if not, write to the Free Software
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20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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21 */
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22 #ifdef HAVE_SIDPLAY1
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23 #include "xs_sidplay1.h"
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24
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25 extern "C" {
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26 #include <xmms/title.h>
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27 }
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28
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29 #include <sidplay/player.h>
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30 #include <sidplay/myendian.h>
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31 #include <sidplay/fformat.h>
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32
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33
72
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34 void xs_sidplay1_close(t_xs_status *myStatus)
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35 {
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36 if (!myStatus) return;
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37
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38 if (!myStatus->currEng)
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39 delete (emuEngine *) myStatus->currEng;
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40
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41 if (!myStatus->currConf)
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42 free(myStatus->currConf);
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43
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44 free(myStatus);
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45 }
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46
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47
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48 gboolean xs_sidplay1_init(t_xs_status *myStatus)
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49 {
72
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50 if (!myStatus) return FALSE;
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51
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52 myStatus->currEng = (void *) new emuEngine;
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53 if (!myStatus->currEng)
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54 {
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55 xs_sidplay1_close(myStatus);
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56 return FALSE;
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57 }
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58
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59 myStatus->currConf = calloc(1, sizeof(struct emuConfig));
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60 if (!myStatus->currConf)
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61 {
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62 xs_sidplay1_close(myStatus);
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63 return FALSE;
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64 }
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65
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66 return TRUE;
71
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67 }
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68
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69
72
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70 gboolean xs_sidplay1_initsong(t_xs_status *myStatus)
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71 {
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72 if ((!myStatus->currTune) || (!((sidTune *)myStatus->currTune)->getStatus())) return FALSE;
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73
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74 return sidEmuInitializeSong(
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75 (emuEngine *) myStatus->currEngine,
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76 (sidTune *) myStatus->currTune,
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77 myStatus->currSong);
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78 }
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79
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80
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81 void xs_sidplay1_fillbuffer(t_xs_status *myStatus, gchar *audioBuffer, gint audioBufSize)
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82 {
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83 sidEmuFillBuffer(
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84 (emuEngine *) myStatus->currEngine,
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85 (sidTune *) myStatus->currTune,
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86 audioBuffer,
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87 audioBufSize);
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88 }
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89
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90
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91 gboolean xs_sidplay1_loadsid(t_xs_status *myStatus, gchar *pcFileName)
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92 {
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93 sidTune *newTune;
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94 sidTuneInfo tuneInfo;
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95
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96 /* Try to get the tune */
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97 if (!pcFileName) return FALSE;
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98 newTune = new sidTune(pcFileName);
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99 if (newTune == NULL) return FALSE;
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100
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101 /* Get current configuration */
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102 myStatus->currEngine.getConfig(myStatus->currConf);
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103
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104 /* Configure channels and stuff */
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105 switch (xs_cfg.fmtChannels) {
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106
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107 case XS_CHN_AUTOPAN:
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108 myStatus->currConf.channels = SIDEMU_STEREO;
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109 myStatus->currConf.autoPanning = SIDEMU_CENTEREDAUTOPANNING;
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110 myStatus->currConf.volumeControl = SIDEMU_FULLPANNING;
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111 break;
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112
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113 case XS_CHN_STEREO:
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114 myStatus->currConf.channels = SIDEMU_STEREO;
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115 myStatus->currConf.autoPanning = SIDEMU_NONE;
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116 myStatus->currConf.volumeControl = SIDEMU_NONE;
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117 break;
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118
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119 case XS_CHN_MONO:
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120 default:
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121 myStatus->currConf.channels = SIDEMU_MONO;
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122 myStatus->currConf.autoPanning = SIDEMU_NONE;
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123 myStatus->currConf.volumeControl = SIDEMU_NONE;
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124 break;
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125 }
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126
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127
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128 /* Memory mode settings */
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129 switch (xs_cfg.memoryMode) {
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130 case XS_MPU_BANK_SWITCHING:
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131 myStatus->currConf.memoryMode = MPU_BANK_SWITCHING;
71
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132 break;
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133
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134 case XS_MPU_TRANSPARENT_ROM:
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135 myStatus->currConf.memoryMode = MPU_TRANSPARENT_ROM;
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136 break;
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137
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138 case XS_MPU_PLAYSID_ENVIRONMENT:
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139 myStatus->currConf.memoryMode = MPU_PLAYSID_ENVIRONMENT;
71
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140 break;
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141
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142 default:
72
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143 myStatus->currConf.memoryMode = MPU_BANK_SWITCHING;
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144 break;
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145 }
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146
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147
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148 /* Clockspeed settings */
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149 switch (xs_cfg.clockSpeed) {
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150 case XS_CLOCK_NTSC:
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151 myStatus->currConf.clockSpeed = SIDTUNE_CLOCK_NTSC;
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152 break;
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153
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154 case XS_CLOCK_PAL:
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155 default:
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156 myStatus->currConf.clockSpeed = SIDTUNE_CLOCK_PAL;
71
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157 break;
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158 }
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159
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160
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161 /* Configure rest of the emulation */
72
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162 myStatus->currConf.bitsPerSample = xs_cfg.fmtBitsPerSample;
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163 myStatus->currConf.frequency = xs_cfg.fmtFrequency;
71
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164 #ifdef HAVE_UNSIGNEDPCM
72
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165 myStatus->currConf.sampleFormat = SIDEMU_UNSIGNED_PCM;
71
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166 #else
72
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167 myStatus->currConf.sampleFormat = SIDEMU_SIGNED_PCM;
71
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168 #endif
72
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169 myStatus->currConf.mos8580 = xs_cfg.mos8580;
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170 myStatus->currConf.emulateFilter = xs_cfg.emulateFilters;
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171 myStatus->currConf.filterFs = xs_cfg.filterFs;
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172 myStatus->currConf.filterFm = xs_cfg.filterFm;
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173 myStatus->currConf.filterFt = xs_cfg.filterFt;
71
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174
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175 /* Now set the emulator configuration */
72
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176 myStatus->currEngine.setConfig(myStatus->currConf);
71
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177
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178 /* Initialize status information */
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179 newTune->getInfo(tuneInfo);
72
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180 if (!newTune) return FALSE;
71
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181
72
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182 myStatus->isPlaying = TRUE;
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183 myStatus->isError = FALSE;
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184 myStatus->currSong = tuneInfo.startSong;
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185 myStatus->nSongs = tuneInfo.songs;
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186 myStatus->currTune = newTune;
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187 myStatus->currFileName = g_strdup(pcFileName);
71
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188
72
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189 return TRUE;
71
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190 }
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191
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192
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193 #endif /* HAVE_SIDPLAY1 */