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annotate src/xs_sidplay1.cc @ 467:9dafc55c4270

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Beginnings of vfs portability.
author Matti Hamalainen <ccr@tnsp.org>
date Thu, 25 Jan 2007 03:46:02 +0000
parents 9e683fb666ba
children fa95d942f226
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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 along
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20 with this program; if not, write to the Free Software Foundation, Inc.,
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21 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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22 */
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23 #include "xmms-sid.h"
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24
71
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25 #ifdef HAVE_SIDPLAY1
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26
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27 #include <stdio.h>
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28 #include "xs_sidplay1.h"
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29 #include "xs_config.h"
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30
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31 #include <sidplay/player.h>
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32 #include <sidplay/myendian.h>
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33 #include <sidplay/fformat.h>
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34
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35
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36 typedef struct {
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37 emuEngine *currEng;
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38 emuConfig currConfig;
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39 sidTune *currTune;
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40 } t_xs_sidplay1;
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41
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42
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43 /* We need to 'export' all this pseudo-C++ crap */
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44 extern "C" {
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45
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46
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47 /* Return song information
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48 */
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49 #define TFUNCTION xs_sidplay1_getinfo
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50 #define TFUNCTION2 xs_sidplay1_updateinfo
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51 #define TTUNEINFO sidTuneInfo
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52 #define TTUNE sidTune
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53 #define TENGINE t_xs_sidplay1
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54 #include "xs_sidplay.h"
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55
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56
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57 /* Check if we can play the given file
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58 */
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59 gboolean xs_sidplay1_isourfile(t_xs_file *f)
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60 {
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61 gchar tmpBuf[4];
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62
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63 if (!f) return FALSE;
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64
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65 if (xs_fread(tmpBuf, sizeof(gchar), 4, f) != 4)
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66 return FALSE;
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67
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68 if (!strncmp(tmpBuf, "PSID", 4))
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69 return TRUE;
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70 else
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71 return FALSE;
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72 }
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74
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75 /* Initialize SIDPlay1
75
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76 */
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77 gboolean xs_sidplay1_init(t_xs_status * myStatus)
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78 {
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79 gint tmpFreq;
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80 t_xs_sidplay1 *myEngine;
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81 assert(myStatus);
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82
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83 /* Allocate internal structures */
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84 myEngine = (t_xs_sidplay1 *) g_malloc0(sizeof(t_xs_sidplay1));
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85 if (!myEngine) return FALSE;
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86
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87 /* Initialize engine */
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88 myEngine->currEng = new emuEngine();
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89 if (!myEngine->currEng) {
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90 xs_error(_("Could not initialize libSIDPlay1 emulation engine.\n"));
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91 g_free(myEngine);
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92 return FALSE;
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93 }
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94
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95 /* Verify endianess */
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96 if (!myEngine->currEng->verifyEndianess()) {
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97 xs_error(_("Endianess verification failed.\n"));
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98 delete myEngine->currEng;
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99 g_free(myEngine);
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100 return FALSE;
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101 }
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102
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103 myStatus->sidEngine = myEngine;
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104
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105 /* Get current configuration */
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106 myEngine->currEng->getConfig(myEngine->currConfig);
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107
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108 /* Configure channel parameters */
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109 switch (myStatus->audioChannels) {
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110
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111 case XS_CHN_AUTOPAN:
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112 myEngine->currConfig.channels = SIDEMU_STEREO;
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113 myEngine->currConfig.autoPanning = SIDEMU_CENTEREDAUTOPANNING;
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114 myEngine->currConfig.volumeControl = SIDEMU_FULLPANNING;
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115 break;
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116
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117 case XS_CHN_STEREO:
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118 myEngine->currConfig.channels = SIDEMU_STEREO;
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119 myEngine->currConfig.autoPanning = SIDEMU_NONE;
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120 myEngine->currConfig.volumeControl = SIDEMU_NONE;
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121 break;
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122
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123 case XS_CHN_MONO:
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124 default:
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125 myEngine->currConfig.channels = SIDEMU_MONO;
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126 myEngine->currConfig.autoPanning = SIDEMU_NONE;
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127 myEngine->currConfig.volumeControl = SIDEMU_NONE;
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128 myStatus->audioChannels = XS_CHN_MONO;
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129 break;
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130 }
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132
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133 /* Memory mode settings */
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134 switch (xs_cfg.memoryMode) {
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135 case XS_MPU_TRANSPARENT_ROM:
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136 myEngine->currConfig.memoryMode = MPU_TRANSPARENT_ROM;
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137 break;
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138
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139 case XS_MPU_PLAYSID_ENVIRONMENT:
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diff changeset
140 myEngine->currConfig.memoryMode = MPU_PLAYSID_ENVIRONMENT;
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parents: 359
diff changeset
141 break;
71
2b32c75729ce Started modularizing, separated sidplay1 things into a "wrapper" module.
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parents:
diff changeset
142
364
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diff changeset
143 case XS_MPU_BANK_SWITCHING:
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parents: 359
diff changeset
144 default:
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diff changeset
145 myEngine->currConfig.memoryMode = MPU_BANK_SWITCHING;
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diff changeset
146 xs_cfg.memoryMode = XS_MPU_BANK_SWITCHING;
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parents: 359
diff changeset
147 break;
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diff changeset
148 }
71
2b32c75729ce Started modularizing, separated sidplay1 things into a "wrapper" module.
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parents:
diff changeset
149
2b32c75729ce Started modularizing, separated sidplay1 things into a "wrapper" module.
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parents:
diff changeset
150
364
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diff changeset
151 /* Audio parameters sanity checking and setup */
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parents: 359
diff changeset
152 myEngine->currConfig.bitsPerSample = myStatus->audioBitsPerSample;
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diff changeset
153 tmpFreq = myStatus->audioFrequency;
359
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parents: 324
diff changeset
154
364
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parents: 359
diff changeset
155 if (myStatus->oversampleEnable) {
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diff changeset
156 if ((tmpFreq * myStatus->oversampleFactor) > SIDPLAY1_MAX_FREQ) {
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diff changeset
157 myStatus->oversampleEnable = FALSE;
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diff changeset
158 } else {
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diff changeset
159 tmpFreq = (tmpFreq * myStatus->oversampleFactor);
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diff changeset
160 }
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diff changeset
161 } else {
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diff changeset
162 if (tmpFreq > SIDPLAY1_MAX_FREQ)
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diff changeset
163 tmpFreq = SIDPLAY1_MAX_FREQ;
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diff changeset
164 }
270
583f5651abff Cleanups, moved engine configuration to initialization function.
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parents: 232
diff changeset
165
364
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diff changeset
166 myEngine->currConfig.frequency = tmpFreq;
359
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parents: 324
diff changeset
167
364
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diff changeset
168 switch (myStatus->audioBitsPerSample) {
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parents: 359
diff changeset
169 case XS_RES_8BIT:
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parents: 359
diff changeset
170 switch (myStatus->audioFormat) {
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diff changeset
171 case FMT_S8:
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diff changeset
172 myStatus->audioFormat = FMT_S8;
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diff changeset
173 myEngine->currConfig.sampleFormat = SIDEMU_SIGNED_PCM;
359
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parents: 324
diff changeset
174 break;
127
ddb513bd2610 Improved audio format support, now supported formats are "queried" from
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diff changeset
175
364
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diff changeset
176 case FMT_U8:
359
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diff changeset
177 default:
364
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diff changeset
178 myStatus->audioFormat = FMT_U8;
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diff changeset
179 myEngine->currConfig.sampleFormat = SIDEMU_UNSIGNED_PCM;
359
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parents: 324
diff changeset
180 break;
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parents: 324
diff changeset
181 }
364
421e4fc13bce More and more of indentation fixes.
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diff changeset
182 break;
359
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parents: 324
diff changeset
183
364
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diff changeset
184 case XS_RES_16BIT:
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parents: 359
diff changeset
185 default:
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parents: 359
diff changeset
186 switch (myStatus->audioFormat) {
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diff changeset
187 case FMT_U16_NE:
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parents: 359
diff changeset
188 case FMT_U16_LE:
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parents: 359
diff changeset
189 case FMT_U16_BE:
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parents: 359
diff changeset
190 myStatus->audioFormat = FMT_U16_NE;
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diff changeset
191 myEngine->currConfig.sampleFormat = SIDEMU_UNSIGNED_PCM;
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parents: 359
diff changeset
192 break;
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diff changeset
193
421e4fc13bce More and more of indentation fixes.
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diff changeset
194 case FMT_S16_NE:
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diff changeset
195 case FMT_S16_LE:
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diff changeset
196 case FMT_S16_BE:
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diff changeset
197 default:
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diff changeset
198 myStatus->audioFormat = FMT_S16_NE;
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diff changeset
199 myEngine->currConfig.sampleFormat = SIDEMU_SIGNED_PCM;
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diff changeset
200 break;
359
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diff changeset
201 }
364
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
202 break;
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parents: 359
diff changeset
203 }
359
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parents: 324
diff changeset
204
368
3e55874170eb Cleanups, additional engine NULL check.
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parents: 364
diff changeset
205 /* Clockspeed settings */
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
206 switch (xs_cfg.clockSpeed) {
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
207 case XS_CLOCK_NTSC:
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parents: 364
diff changeset
208 myEngine->currConfig.clockSpeed = SIDTUNE_CLOCK_NTSC;
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parents: 364
diff changeset
209 break;
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parents: 364
diff changeset
210
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
211 case XS_CLOCK_PAL:
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
212 default:
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
213 myEngine->currConfig.clockSpeed = SIDTUNE_CLOCK_PAL;
3e55874170eb Cleanups, additional engine NULL check.
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parents: 364
diff changeset
214 xs_cfg.clockSpeed = XS_CLOCK_PAL;
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parents: 364
diff changeset
215 break;
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
216 }
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
217
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
218 myEngine->currConfig.forceSongSpeed = xs_cfg.forceSpeed;
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
219
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
220
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
221 /* Configure rest of the emulation */
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
222 /* if (xs_cfg.forceModel) */
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
223 myEngine->currConfig.mos8580 = xs_cfg.mos8580;
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
224 myEngine->currConfig.emulateFilter = xs_cfg.emulateFilters;
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
225 myEngine->currConfig.filterFs = xs_cfg.filterFs;
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
226 myEngine->currConfig.filterFm = xs_cfg.filterFm;
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Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
227 myEngine->currConfig.filterFt = xs_cfg.filterFt;
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
228
3e55874170eb Cleanups, additional engine NULL check.
Matti Hamalainen <ccr@tnsp.org>
parents: 364
diff changeset
229
364
421e4fc13bce More and more of indentation fixes.
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diff changeset
230 /* Now set the emulator configuration */
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parents: 359
diff changeset
231 if (!myEngine->currEng->setConfig(myEngine->currConfig)) {
445
f277dad3180f Working on the localization and fixing up the breakage in song information
Matti Hamalainen <ccr@tnsp.org>
parents: 412
diff changeset
232 xs_error(_("Emulator engine configuration failed!\n"));
364
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
233 return FALSE;
127
ddb513bd2610 Improved audio format support, now supported formats are "queried" from
Matti Hamalainen <ccr@tnsp.org>
parents: 103
diff changeset
234 }
270
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.
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parents: 359
diff changeset
236 return TRUE;
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parents: 359
diff changeset
237 }
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parents: 359
diff changeset
238
270
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
239
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
240 /* Close SIDPlay1 engine
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
241 */
364
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
242 void xs_sidplay1_close(t_xs_status * myStatus)
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Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
243 {
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parents: 359
diff changeset
244 t_xs_sidplay1 *myEngine;
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parents: 359
diff changeset
245 assert(myStatus);
270
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
246
364
421e4fc13bce More and more of indentation fixes.
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diff changeset
247 myEngine = (t_xs_sidplay1 *) myStatus->sidEngine;
270
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
248
364
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
249 /* Free internals */
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parents: 359
diff changeset
250 if (myEngine->currEng) {
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Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
251 delete myEngine->currEng;
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Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
252 myEngine->currEng = NULL;
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
253 }
359
b1a858b8cb1a Re-indentation all (non-generated) code.
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parents: 324
diff changeset
254
364
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
255 g_free(myEngine);
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parents: 359
diff changeset
256 myStatus->sidEngine = NULL;
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
257 }
270
583f5651abff Cleanups, moved engine configuration to initialization function.
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parents: 232
diff changeset
258
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
259
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
260 /* Initialize current song and sub-tune
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
261 */
364
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
262 gboolean xs_sidplay1_initsong(t_xs_status * myStatus)
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
263 {
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parents: 359
diff changeset
264 t_xs_sidplay1 *myEngine;
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parents: 359
diff changeset
265 assert(myStatus);
359
b1a858b8cb1a Re-indentation all (non-generated) code.
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parents: 324
diff changeset
266
364
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
267 myEngine = (t_xs_sidplay1 *) myStatus->sidEngine;
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
268 if (!myEngine) return FALSE;
270
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
269
364
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
270 if (!myEngine->currTune) {
445
f277dad3180f Working on the localization and fixing up the breakage in song information
Matti Hamalainen <ccr@tnsp.org>
parents: 412
diff changeset
271 xs_error(_("SID-tune struct pointer was NULL. This should not happen, report to XMMS-SID author.\n"));
364
421e4fc13bce More and more of indentation fixes.
Matti Hamalainen <ccr@tnsp.org>
parents: 359
diff changeset
272 return FALSE;
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
273 }
270
583f5651abff Cleanups, moved engine configuration to initialization function.
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parents: 232
diff changeset
274
364
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
275 if (!myEngine->currTune->getStatus()) {
445
f277dad3180f Working on the localization and fixing up the breakage in song information
Matti Hamalainen <ccr@tnsp.org>
parents: 412
diff changeset
276 xs_error(_("SID-tune status check failed. This should not happen, report to XMMS-SID author.\n"));
364
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
277 return FALSE;
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
278 }
359
b1a858b8cb1a Re-indentation all (non-generated) code.
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parents: 324
diff changeset
279
364
421e4fc13bce More and more of indentation fixes.
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parents: 359
diff changeset
280 return sidEmuInitializeSong(*myEngine->currEng, *myEngine->currTune, myStatus->currSong);
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parents: 359
diff changeset
281 }
270
583f5651abff Cleanups, moved engine configuration to initialization function.
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parents: 232
diff changeset
282
583f5651abff Cleanups, moved engine configuration to initialization function.
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parents: 232
diff changeset
283
583f5651abff Cleanups, moved engine configuration to initialization function.
Matti Hamalainen <ccr@tnsp.org>
parents: 232
diff changeset
284 /* 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
285 */
364
421e4fc13bce More and more of indentation fixes.
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parents: 359
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286 guint xs_sidplay1_fillbuffer(t_xs_status * myStatus, gchar * audioBuffer, guint audioBufSize)
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287 {
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288 t_xs_sidplay1 *myEngine;
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289 assert(myStatus);
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290
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291 myEngine = (t_xs_sidplay1 *) myStatus->sidEngine;
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292 if (!myEngine) return 0;
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293
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294 sidEmuFillBuffer(*myEngine->currEng, *myEngine->currTune, audioBuffer, audioBufSize);
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295
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296 return audioBufSize;
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297 }
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298
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299
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300 /* Load a given SID-tune file
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301 */
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302 gboolean xs_sidplay1_load(t_xs_status * myStatus, gchar * pcFilename)
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303 {
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304 t_xs_sidplay1 *myEngine;
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305 sidTune *newTune;
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306 assert(myStatus);
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307
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308 myEngine = (t_xs_sidplay1 *) myStatus->sidEngine;
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309 if (!myEngine) return FALSE;
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310
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311 /* Try to load the file/tune */
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312 if (!pcFilename) return FALSE;
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313
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314 newTune = new sidTune(pcFilename);
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315 if (!newTune) return FALSE;
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316
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317 myEngine->currTune = newTune;
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318
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319 return TRUE;
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320 }
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321
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322
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323 /* Delete INTERNAL information
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324 */
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325 void xs_sidplay1_delete(t_xs_status * myStatus)
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326 {
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327 t_xs_sidplay1 *myEngine;
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328 assert(myStatus);
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329
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330 myEngine = (t_xs_sidplay1 *) myStatus->sidEngine;
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331 if (!myEngine) return;
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332
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333 if (myEngine->currTune) {
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334 delete myEngine->currTune;
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335 myEngine->currTune = NULL;
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336 }
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337 }
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338
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339
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340 } /* extern "C" */
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341 #endif /* HAVE_SIDPLAY1 */