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annotate src/xs_sidplay1.cc @ 71:2b32c75729ce

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Started modularizing, separated sidplay1 things into a "wrapper" module. Removed non-generic stuff from xmms-sid.cc, removed C++ references and renamed to xmms-sid.c
author Matti Hamalainen <ccr@tnsp.org>
date Wed, 10 Sep 2003 06:21:04 +0000
parents
children e3b205a6bc7e
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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 "xmms-sid.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
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34 struct xs_sidplay1 {
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35 struct emuConfig emuConf;
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36 emuEngine emuEngine;
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37 gboolean isError, isPlaying, allowNext;
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38 gint currSong, nSongs;
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39 sidTune *currTune;
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40 gchar *currFileName;
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41 };
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42
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43
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44
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45 gboolean xs_sidplay1_initsong(struct xs_sidplay1 *myStatus)
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46 {
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47 return sidEmuInitializeSong(myStatus->emuEngine, myStatus->currTune, myStatus->currSong);
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48 }
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49
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50
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51 void xs_sidplay1_fillbuffer(struct xs_sidplay1 *myStatus, gchar *audioBuffer, gint audioBufSize)
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52 {
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53 sidEmuFillBuffer(myStatus->emuEngine, myStatus->currTune, audioBuffer, audioBufSize);
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54 }
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55
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56
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57 gint xs_sidplay1_inittune(gchar *pcFileName)
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58 {
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59 sidTune *newTune;
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60 sidTuneInfo tuneInfo;
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61
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62 /* Can we set the next tune? */
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63 XSDEBUG("request to play '%s'\n", pcFileName);
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64
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65 /* Try to get the tune */
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66 newTune = new sidTune(pcFileName);
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67 if (newTune == NULL) return;
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68
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69 /* Get current configuration */
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70 xs_emuEngine.getConfig(xs_emuConf);
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71
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72 /* Configure channels and stuff */
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73 switch (xs_cfg.fmtChannels) {
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74
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75 case XS_CHN_AUTOPAN:
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76 xs_emuConf.channels = SIDEMU_STEREO;
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77 xs_emuConf.autoPanning = SIDEMU_CENTEREDAUTOPANNING;
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78 xs_emuConf.volumeControl = SIDEMU_FULLPANNING;
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79 break;
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80
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81 case XS_CHN_STEREO:
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82 xs_emuConf.channels = SIDEMU_STEREO;
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83 xs_emuConf.autoPanning = SIDEMU_NONE;
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84 xs_emuConf.volumeControl = SIDEMU_NONE;
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85 break;
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86
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87 case XS_CHN_MONO:
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88 default:
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89 xs_emuConf.channels = SIDEMU_MONO;
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90 xs_emuConf.autoPanning = SIDEMU_NONE;
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91 xs_emuConf.volumeControl = SIDEMU_NONE;
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92 break;
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93 }
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94
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95
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96 /* Memory mode settings */
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97 switch (xs_cfg.memoryMode) {
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98 case XS_MPU_BANK_SWITCHING:
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99 xs_emuConf.memoryMode = MPU_BANK_SWITCHING;
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100 break;
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101
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102 case XS_MPU_TRANSPARENT_ROM:
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103 xs_emuConf.memoryMode = MPU_TRANSPARENT_ROM;
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104 break;
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105
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106 case XS_MPU_PLAYSID_ENVIRONMENT:
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107 xs_emuConf.memoryMode = MPU_PLAYSID_ENVIRONMENT;
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108 break;
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109
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110 default:
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111 xs_emuConf.memoryMode = MPU_BANK_SWITCHING;
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112 break;
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113 }
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114
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115
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116 /* Clockspeed settings */
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117 switch (xs_cfg.clockSpeed) {
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118 case XS_CLOCK_NTSC:
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119 xs_emuConf.clockSpeed = SIDTUNE_CLOCK_NTSC;
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120 break;
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121
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122 case XS_CLOCK_PAL:
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123 default:
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124 xs_emuConf.clockSpeed = SIDTUNE_CLOCK_PAL;
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125 break;
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126 }
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127
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128
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129 /* Configure rest of the emulation */
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130 xs_emuConf.bitsPerSample = xs_cfg.fmtBitsPerSample;
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131 xs_emuConf.frequency = xs_cfg.fmtFrequency;
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132 #ifdef HAVE_UNSIGNEDPCM
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133 xs_emuConf.sampleFormat = SIDEMU_UNSIGNED_PCM;
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134 #else
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135 xs_emuConf.sampleFormat = SIDEMU_SIGNED_PCM;
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136 #endif
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137 xs_emuConf.mos8580 = xs_cfg.mos8580;
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138 xs_emuConf.emulateFilter = xs_cfg.emulateFilters;
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139 xs_emuConf.filterFs = xs_cfg.filterFs;
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140 xs_emuConf.filterFm = xs_cfg.filterFm;
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141 xs_emuConf.filterFt = xs_cfg.filterFt;
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142
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143 /* Now set the emulator configuration */
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144 xs_emuEngine.setConfig(xs_emuConf);
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145
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146
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147 /* Initialize status information */
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148 XSDEBUG("starting playing thread!\n");
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149
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150 newTune->getInfo(tuneInfo);
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151
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152 xs_status->isPlaying = TRUE;
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153 xs_status->isError = FALSE;
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154 xs_status->currSong = tuneInfo.startSong;
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155 xs_status->nSongs = tuneInfo.songs;
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156 xs_status->currTune = newTune;
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157 xs_status->currFileName = g_strdup(pcFileName);
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158
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159 /* Start the playing thread! */
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160 if (pthread_create(&xs_decode_thread, NULL, xs_play_loop, NULL) < 0)
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161 {
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162 XSERR("Couldn't start playing thread! Possible reason reported by system: %s\n", strerror(errno));
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163 delete newTune;
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164 }
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165
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166 XSDEBUG("systems should be up?\n");
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167
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168 /* Exit */
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169 }
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170
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171
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172 #endif /* HAVE_SIDPLAY1 */
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173