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annotate src/xs_sidplay1.cc @ 368:3e55874170eb

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Cleanups, additional engine NULL check.
author Matti Hamalainen <ccr@tnsp.org>
date Wed, 09 Nov 2005 01:28:04 +0000
parents 421e4fc13bce
children 7c4216c7aa47
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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
324
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6 Programmed and designed by Matti 'ccr' Hamalainen <ccr@tnsp.org>
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7 (C) Copyright 1999-2005 Tecnic Software productions (TNSP)
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8
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9 This program is free software; you can redistribute it and/or modify
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10 it under the terms of the GNU General Public License as published by
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11 the Free Software Foundation; either version 2 of the License, or
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12 (at your option) any later version.
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13
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14 This program is distributed in the hope that it will be useful,
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15 but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 GNU General Public License for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with this program; if not, write to the Free Software
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21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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22 */
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23 #include "xmms-sid.h"
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24
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25 #ifdef HAVE_SIDPLAY1
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26
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27 #include "xs_sidplay1.h"
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28 #include <stdio.h>
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29 #include "xs_config.h"
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30 #include "xs_length.h"
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31 #include "xs_title.h"
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32
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33 #include <sidplay/player.h>
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34 #include <sidplay/myendian.h>
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35 #include <sidplay/fformat.h>
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36
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37
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38 typedef struct
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39 {
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40 emuEngine *currEng;
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41 emuConfig currConfig;
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42 sidTune *currTune;
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43 } t_xs_sidplay1;
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44
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45
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46 /* We need to 'export' all this pseudo-C++ crap */
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47 extern "C"
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48 {
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49
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51 /* Check if we can play the given file
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52 */
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53 gboolean xs_sidplay1_isourfile(gchar * pcFilename)
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54 {
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55 sidTune *testTune = new sidTune(pcFilename);
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56
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57 if (!testTune) return FALSE;
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59 if (!testTune->getStatus()) {
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60 delete testTune;
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61 return FALSE;
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62 }
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64 delete testTune;
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65 return TRUE;
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66 }
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69 /* Initialize SIDPlay1
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70 */
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71 gboolean xs_sidplay1_init(t_xs_status * myStatus)
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72 {
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73 gint tmpFreq;
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74 t_xs_sidplay1 *myEngine;
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75 assert(myStatus);
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77 /* Allocate internal structures */
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78 myEngine = (t_xs_sidplay1 *) g_malloc0(sizeof(t_xs_sidplay1));
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79 if (!myEngine) return FALSE;
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81 /* Initialize engine */
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82 myEngine->currEng = new emuEngine();
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83 if (!myEngine->currEng) {
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84 XSERR("Could not initialize libSIDPlay1 emulation engine\n");
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85 g_free(myEngine);
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86 return FALSE;
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87 }
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89 /* Verify endianess */
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90 if (!myEngine->currEng->verifyEndianess()) {
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91 XSERR("Endianess verification failed\n");
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92 delete myEngine->currEng;
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93 g_free(myEngine);
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94 return FALSE;
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95 }
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96
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97 myStatus->sidEngine = myEngine;
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98
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99 /* Get current configuration */
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100 myEngine->currEng->getConfig(myEngine->currConfig);
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101
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102 /* Configure channel parameters */
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103 switch (myStatus->audioChannels) {
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104
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105 case XS_CHN_AUTOPAN:
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106 myEngine->currConfig.channels = SIDEMU_STEREO;
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107 myEngine->currConfig.autoPanning = SIDEMU_CENTEREDAUTOPANNING;
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108 myEngine->currConfig.volumeControl = SIDEMU_FULLPANNING;
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109 break;
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110
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111 case XS_CHN_STEREO:
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112 myEngine->currConfig.channels = SIDEMU_STEREO;
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113 myEngine->currConfig.autoPanning = SIDEMU_NONE;
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114 myEngine->currConfig.volumeControl = SIDEMU_NONE;
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115 break;
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116
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117 case XS_CHN_MONO:
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118 default:
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119 myEngine->currConfig.channels = SIDEMU_MONO;
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120 myEngine->currConfig.autoPanning = SIDEMU_NONE;
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121 myEngine->currConfig.volumeControl = SIDEMU_NONE;
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122 myStatus->audioChannels = XS_CHN_MONO;
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123 break;
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124 }
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125
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126
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127 /* Memory mode settings */
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128 switch (xs_cfg.memoryMode) {
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129 case XS_MPU_TRANSPARENT_ROM:
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130 myEngine->currConfig.memoryMode = MPU_TRANSPARENT_ROM;
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131 break;
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132
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133 case XS_MPU_PLAYSID_ENVIRONMENT:
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134 myEngine->currConfig.memoryMode = MPU_PLAYSID_ENVIRONMENT;
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135 break;
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136
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137 case XS_MPU_BANK_SWITCHING:
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138 default:
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parents: 359
diff changeset
139 myEngine->currConfig.memoryMode = MPU_BANK_SWITCHING;
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diff changeset
140 xs_cfg.memoryMode = XS_MPU_BANK_SWITCHING;
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parents: 359
diff changeset
141 break;
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
142 }
71
2b32c75729ce Started modularizing, separated sidplay1 things into a "wrapper" module.
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parents:
diff changeset
143
2b32c75729ce Started modularizing, separated sidplay1 things into a "wrapper" module.
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parents:
diff changeset
144
364
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
145 /* Audio parameters sanity checking and setup */
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parents: 359
diff changeset
146 myEngine->currConfig.bitsPerSample = myStatus->audioBitsPerSample;
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parents: 359
diff changeset
147 tmpFreq = myStatus->audioFrequency;
359
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parents: 324
diff changeset
148
364
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parents: 359
diff changeset
149 if (myStatus->oversampleEnable) {
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diff changeset
150 if ((tmpFreq * myStatus->oversampleFactor) > SIDPLAY1_MAX_FREQ) {
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diff changeset
151 myStatus->oversampleEnable = FALSE;
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parents: 359
diff changeset
152 } else {
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diff changeset
153 tmpFreq = (tmpFreq * myStatus->oversampleFactor);
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parents: 359
diff changeset
154 }
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
155 } else {
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diff changeset
156 if (tmpFreq > SIDPLAY1_MAX_FREQ)
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diff changeset
157 tmpFreq = SIDPLAY1_MAX_FREQ;
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diff changeset
158 }
270
583f5651abff Cleanups, moved engine configuration to initialization function.
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parents: 232
diff changeset
159
364
421e4fc13bce More and more of indentation fixes.
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diff changeset
160 myEngine->currConfig.frequency = tmpFreq;
359
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parents: 324
diff changeset
161
364
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diff changeset
162 switch (myStatus->audioBitsPerSample) {
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parents: 359
diff changeset
163 case XS_RES_8BIT:
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parents: 359
diff changeset
164 switch (myStatus->audioFormat) {
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parents: 359
diff changeset
165 case FMT_S8:
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diff changeset
166 myStatus->audioFormat = FMT_S8;
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diff changeset
167 myEngine->currConfig.sampleFormat = SIDEMU_SIGNED_PCM;
359
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parents: 324
diff changeset
168 break;
127
ddb513bd2610 Improved audio format support, now supported formats are "queried" from
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diff changeset
169
364
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diff changeset
170 case FMT_U8:
359
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diff changeset
171 default:
364
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diff changeset
172 myStatus->audioFormat = FMT_U8;
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diff changeset
173 myEngine->currConfig.sampleFormat = SIDEMU_UNSIGNED_PCM;
359
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parents: 324
diff changeset
174 break;
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parents: 324
diff changeset
175 }
364
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
176 break;
359
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parents: 324
diff changeset
177
364
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diff changeset
178 case XS_RES_16BIT:
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diff changeset
179 default:
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diff changeset
180 switch (myStatus->audioFormat) {
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diff changeset
181 case FMT_U16_NE:
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diff changeset
182 case FMT_U16_LE:
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diff changeset
183 case FMT_U16_BE:
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parents: 359
diff changeset
184 myStatus->audioFormat = FMT_U16_NE;
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diff changeset
185 myEngine->currConfig.sampleFormat = SIDEMU_UNSIGNED_PCM;
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parents: 359
diff changeset
186 break;
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diff changeset
187
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diff changeset
188 case FMT_S16_NE:
421e4fc13bce More and more of indentation fixes.
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diff changeset
189 case FMT_S16_LE:
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diff changeset
190 case FMT_S16_BE:
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diff changeset
191 default:
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diff changeset
192 myStatus->audioFormat = FMT_S16_NE;
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diff changeset
193 myEngine->currConfig.sampleFormat = SIDEMU_SIGNED_PCM;
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diff changeset
194 break;
359
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parents: 324
diff changeset
195 }
364
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
196 break;
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parents: 359
diff changeset
197 }
359
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parents: 324
diff changeset
198
368
3e55874170eb Cleanups, additional engine NULL check.
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parents: 364
diff changeset
199 /* Clockspeed settings */
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
200 switch (xs_cfg.clockSpeed) {
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
201 case XS_CLOCK_NTSC:
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
202 myEngine->currConfig.clockSpeed = SIDTUNE_CLOCK_NTSC;
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
203 break;
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parents: 364
diff changeset
204
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
205 case XS_CLOCK_PAL:
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
206 default:
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
207 myEngine->currConfig.clockSpeed = SIDTUNE_CLOCK_PAL;
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parents: 364
diff changeset
208 xs_cfg.clockSpeed = XS_CLOCK_PAL;
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
209 break;
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
210 }
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
211
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
212 myEngine->currConfig.forceSongSpeed = xs_cfg.forceSpeed;
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
213
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
214
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
215 /* Configure rest of the emulation */
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
216 /* if (xs_cfg.forceModel) */
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
217 myEngine->currConfig.mos8580 = xs_cfg.mos8580;
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
218 myEngine->currConfig.emulateFilter = xs_cfg.emulateFilters;
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
219 myEngine->currConfig.filterFs = xs_cfg.filterFs;
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
220 myEngine->currConfig.filterFm = xs_cfg.filterFm;
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
221 myEngine->currConfig.filterFt = xs_cfg.filterFt;
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
222
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
223
364
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
224 /* Now set the emulator configuration */
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Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
225 if (!myEngine->currEng->setConfig(myEngine->currConfig)) {
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Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
226 XSERR("Emulator engine configuration failed!\n");
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Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
227 return FALSE;
127
ddb513bd2610 Improved audio format support, now supported formats are "queried" from
Matti Hamalainen <ccr@tnsp.org>
parents: 103
diff changeset
228 }
270
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
229
364
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
230 return TRUE;
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
231 }
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
232
270
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
233
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
234 /* Close SIDPlay1 engine
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
235 */
364
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
236 void xs_sidplay1_close(t_xs_status * myStatus)
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Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
237 {
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
238 t_xs_sidplay1 *myEngine;
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
239 assert(myStatus);
270
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
240
364
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
241 myEngine = (t_xs_sidplay1 *) myStatus->sidEngine;
270
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
242
364
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
243 /* Free internals */
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
244 if (myEngine->currEng) {
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
245 delete myEngine->currEng;
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Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
246 myEngine->currEng = NULL;
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
247 }
359
b1a858b8cb1a Re-indentation all (non-generated) code.
Matti Hamalainen <ccr@tnsp.org>
parents: 324
diff changeset
248
364
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
249 g_free(myEngine);
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
250 myStatus->sidEngine = NULL;
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
251 }
270
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
252
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
253
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
254 /* Initialize current song and sub-tune
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
255 */
364
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
256 gboolean xs_sidplay1_initsong(t_xs_status * myStatus)
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
257 {
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
258 t_xs_sidplay1 *myEngine;
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
259 assert(myStatus);
359
b1a858b8cb1a Re-indentation all (non-generated) code.
Matti Hamalainen <ccr@tnsp.org>
parents: 324
diff changeset
260
364
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
261 myEngine = (t_xs_sidplay1 *) myStatus->sidEngine;
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
262 if (!myEngine) return FALSE;
270
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
263
364
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
264 if (!myEngine->currTune) {
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
265 XSERR("Tune was NULL\n");
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
266 return FALSE;
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
267 }
270
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
268
364
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
269 if (!myEngine->currTune->getStatus()) {
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
270 XSERR("Tune status check failed\n");
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
271 return FALSE;
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
272 }
359
b1a858b8cb1a Re-indentation all (non-generated) code.
Matti Hamalainen <ccr@tnsp.org>
parents: 324
diff changeset
273
364
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
274 return sidEmuInitializeSong(*myEngine->currEng, *myEngine->currTune, myStatus->currSong);
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
275 }
270
583f5651abff Cleanups, moved engine configuration to initialization function.
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parents: 232
diff changeset
276
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
277
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
278 /* Emulate and render audio data to given buffer
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
279 */
364
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
280 guint xs_sidplay1_fillbuffer(t_xs_status * myStatus, gchar * audioBuffer, guint audioBufSize)
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
281 {
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
282 t_xs_sidplay1 *myEngine;
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
283 assert(myStatus);
270
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
284
364
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
285 myEngine = (t_xs_sidplay1 *) myStatus->sidEngine;
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
286 if (!myEngine) return 0;
270
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
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287
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288 sidEmuFillBuffer(*myEngine->currEng, *myEngine->currTune, audioBuffer, audioBufSize);
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289
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290 return audioBufSize;
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291 }
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292
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293
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294 /* Load a given SID-tune file
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295 */
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296 gboolean xs_sidplay1_loadsid(t_xs_status * myStatus, gchar * pcFilename)
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297 {
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298 t_xs_sidplay1 *myEngine;
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299 sidTune *newTune;
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300 assert(myStatus);
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301
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302 myEngine = (t_xs_sidplay1 *) myStatus->sidEngine;
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303 if (!myEngine) return FALSE;
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304
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305 /* Try to load the file/tune */
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306 if (!pcFilename) return FALSE;
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307
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308 newTune = new sidTune(pcFilename);
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309 if (!newTune) return FALSE;
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310
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311 myEngine->currTune = newTune;
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312
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313 return TRUE;
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314 }
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315
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316
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317 /* Delete INTERNAL information
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318 */
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319 void xs_sidplay1_deletesid(t_xs_status * myStatus)
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320 {
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321 t_xs_sidplay1 *myEngine;
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322 assert(myStatus);
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323
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324 myEngine = (t_xs_sidplay1 *) myStatus->sidEngine;
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325 if (!myEngine) return;
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326
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327 if (myEngine->currTune) {
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328 delete myEngine->currTune;
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329 myEngine->currTune = NULL;
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330 }
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331 }
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332
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333
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334 /* Return song information
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335 */
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336 #define TFUNCTION xs_sidplay1_getsidinfo
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337 #define TTUNEINFO sidTuneInfo
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338 #define TTUNE sidTune
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339 #include "xs_sidplay.h"
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340
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341 } /* extern "C" */
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342 #endif /* HAVE_SIDPLAY1 */