Mercurial > hg > xmms-sid
annotate src/xs_sidplay1.cpp @ 837:5b3e2116408f
Cosmetic cleanups.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Thu, 08 Nov 2012 20:58:45 +0200 |
parents | a7ee5dc23e78 |
children | 5b93bd8c7814 |
rev | line source |
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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 |
837 | 4 libSIDPlay1 support |
71
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5 |
324 | 6 Programmed and designed by Matti 'ccr' Hamalainen <ccr@tnsp.org> |
539 | 7 (C) Copyright 1999-2007 Tecnic Software productions (TNSP) |
71
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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 |
412
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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. |
71
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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" |
832 | 28 #include "xs_slsup.h" |
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29 #include "xs_config.h" |
71
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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 /* Maximum audio frequency supported by libSIDPlay v1 */ |
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37 #define SIDPLAY1_MAX_FREQ (48000) |
526
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38 |
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39 |
396 | 40 typedef struct { |
764 | 41 emuEngine *emu; |
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42 emuConfig currConfig; |
764 | 43 sidTune *tune; |
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44 guint8 *buf; |
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45 size_t bufSize; |
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46 } XSSIDPlay1; |
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47 |
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48 |
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49 /* We need to 'export' all this pseudo-C++ crap */ |
396 | 50 extern "C" { |
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51 |
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52 |
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53 /* Return song information |
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54 */ |
691 | 55 #define TFUNCTION xs_sidplay1_getinfo |
56 #define TFUNCTION2 xs_sidplay1_updateinfo | |
57 #define TTUNEINFO sidTuneInfo | |
58 #define TTUNE sidTune | |
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59 #define TENGINE XSSIDPlay1 |
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60 #include "xs_sidplay.h" |
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61 |
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62 |
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63 /* Check if we can play the given file |
75
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64 */ |
751 | 65 gboolean xs_sidplay1_probe(XSFile *f) |
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66 { |
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67 gchar tmpBuf[4]; |
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68 |
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69 if (!f) return FALSE; |
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70 |
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71 if (xs_fread(tmpBuf, sizeof(gchar), 4, f) != 4) |
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72 return FALSE; |
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73 |
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74 if (!strncmp(tmpBuf, "PSID", 4)) |
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75 return TRUE; |
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76 else |
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77 return FALSE; |
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78 } |
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79 |
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80 |
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81 /* Initialize SIDPlay1 |
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82 */ |
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83 gboolean xs_sidplay1_init(XSEngineState * state) |
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84 { |
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85 gint tmpFreq; |
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86 XSSIDPlay1 *engine; |
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87 assert(state); |
359
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88 |
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89 /* Allocate internal structures */ |
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90 engine = (XSSIDPlay1 *) g_malloc0(sizeof(XSSIDPlay1)); |
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91 if (!engine) return FALSE; |
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92 |
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93 /* Initialize engine */ |
764 | 94 engine->emu = new emuEngine(); |
837 | 95 if (!engine->emu) |
96 { | |
660
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97 xs_error("[SIDPlay1] Could not initialize emulation engine.\n"); |
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98 g_free(engine); |
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99 return FALSE; |
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100 } |
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101 |
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102 /* Verify endianess */ |
837 | 103 if (!engine->emu->verifyEndianess()) |
104 { | |
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105 xs_error("[SIDPlay1] Endianess verification failed.\n"); |
764 | 106 delete engine->emu; |
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107 g_free(engine); |
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108 return FALSE; |
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109 } |
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110 |
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111 state->internal = engine; |
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112 |
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113 /* Get current configuration */ |
764 | 114 engine->emu->getConfig(engine->currConfig); |
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115 |
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116 /* Configure channel parameters */ |
837 | 117 switch (state->audioChannels) |
118 { | |
119 case XS_CHN_AUTOPAN: | |
120 engine->currConfig.channels = SIDEMU_STEREO; | |
121 engine->currConfig.autoPanning = SIDEMU_CENTEREDAUTOPANNING; | |
122 engine->currConfig.volumeControl = SIDEMU_FULLPANNING; | |
123 break; | |
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124 |
837 | 125 case XS_CHN_STEREO: |
126 engine->currConfig.channels = SIDEMU_STEREO; | |
127 engine->currConfig.autoPanning = SIDEMU_NONE; | |
128 engine->currConfig.volumeControl = SIDEMU_NONE; | |
129 break; | |
71
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130 |
837 | 131 case XS_CHN_MONO: |
132 default: | |
133 engine->currConfig.channels = SIDEMU_MONO; | |
134 engine->currConfig.autoPanning = SIDEMU_NONE; | |
135 engine->currConfig.volumeControl = SIDEMU_NONE; | |
136 state->audioChannels = XS_CHN_MONO; | |
137 break; | |
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138 } |
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139 |
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140 |
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141 /* Memory mode settings */ |
837 | 142 switch (xs_cfg.memoryMode) |
143 { | |
144 case XS_MPU_TRANSPARENT_ROM: | |
145 engine->currConfig.memoryMode = MPU_TRANSPARENT_ROM; | |
146 break; | |
71
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147 |
837 | 148 case XS_MPU_PLAYSID_ENVIRONMENT: |
149 engine->currConfig.memoryMode = MPU_PLAYSID_ENVIRONMENT; | |
150 break; | |
71
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151 |
837 | 152 case XS_MPU_BANK_SWITCHING: |
153 default: | |
154 engine->currConfig.memoryMode = MPU_BANK_SWITCHING; | |
155 xs_cfg.memoryMode = XS_MPU_BANK_SWITCHING; | |
156 break; | |
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157 } |
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158 |
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159 |
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160 /* Audio parameters sanity checking and setup */ |
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161 engine->currConfig.bitsPerSample = state->audioBitsPerSample; |
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162 tmpFreq = state->audioFrequency; |
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163 |
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164 if (tmpFreq > SIDPLAY1_MAX_FREQ) |
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165 tmpFreq = SIDPLAY1_MAX_FREQ; |
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166 |
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167 engine->currConfig.frequency = tmpFreq; |
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168 |
837 | 169 switch (state->audioBitsPerSample) |
170 { | |
171 case XS_RES_8BIT: | |
172 switch (state->audioFormat) | |
173 { | |
174 case FMT_S8: | |
175 state->audioFormat = FMT_S8; | |
176 engine->currConfig.sampleFormat = SIDEMU_SIGNED_PCM; | |
177 break; | |
178 | |
179 case FMT_U8: | |
180 default: | |
181 state->audioFormat = FMT_U8; | |
182 engine->currConfig.sampleFormat = SIDEMU_UNSIGNED_PCM; | |
183 break; | |
184 } | |
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185 break; |
127
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186 |
837 | 187 case XS_RES_16BIT: |
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188 default: |
837 | 189 switch (state->audioFormat) |
190 { | |
191 case FMT_U16_NE: | |
192 case FMT_U16_LE: | |
193 case FMT_U16_BE: | |
194 state->audioFormat = FMT_U16_NE; | |
195 engine->currConfig.sampleFormat = SIDEMU_UNSIGNED_PCM; | |
196 break; | |
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197 |
837 | 198 case FMT_S16_NE: |
199 case FMT_S16_LE: | |
200 case FMT_S16_BE: | |
201 default: | |
202 state->audioFormat = FMT_S16_NE; | |
203 engine->currConfig.sampleFormat = SIDEMU_SIGNED_PCM; | |
204 break; | |
205 } | |
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206 break; |
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207 } |
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208 |
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209 /* Clockspeed settings */ |
837 | 210 switch (xs_cfg.clockSpeed) |
211 { | |
212 case XS_CLOCK_NTSC: | |
213 engine->currConfig.clockSpeed = SIDTUNE_CLOCK_NTSC; | |
214 break; | |
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215 |
837 | 216 case XS_CLOCK_PAL: |
217 default: | |
218 engine->currConfig.clockSpeed = SIDTUNE_CLOCK_PAL; | |
219 xs_cfg.clockSpeed = XS_CLOCK_PAL; | |
220 break; | |
660
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221 } |
368
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222 |
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223 engine->currConfig.forceSongSpeed = xs_cfg.forceSpeed; |
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224 |
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225 |
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226 /* Configure rest of the emulation */ |
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227 /* if (xs_cfg.forceModel) */ |
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228 engine->currConfig.mos8580 = xs_cfg.mos8580; |
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229 engine->currConfig.emulateFilter = xs_cfg.emulateFilters; |
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230 engine->currConfig.filterFs = xs_cfg.sid1Filter.fs; |
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231 engine->currConfig.filterFm = xs_cfg.sid1Filter.fm; |
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232 engine->currConfig.filterFt = xs_cfg.sid1Filter.ft; |
368
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233 |
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234 |
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235 /* Now set the emulator configuration */ |
837 | 236 if (!engine->emu->setConfig(engine->currConfig)) |
237 { | |
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238 xs_error("[SIDPlay1] Emulator engine configuration failed!\n"); |
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239 return FALSE; |
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240 } |
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241 |
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242 /* Create sidtune object */ |
764 | 243 engine->tune = new sidTune(0); |
837 | 244 if (!engine->tune) |
245 { | |
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246 xs_error("[SIDPlay1] Could not initialize SIDTune object.\n"); |
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247 return FALSE; |
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248 } |
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249 |
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250 return TRUE; |
364
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251 } |
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252 |
270
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253 |
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254 /* Close SIDPlay1 engine |
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255 */ |
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256 void xs_sidplay1_close(XSEngineState * state) |
364
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257 { |
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258 XSSIDPlay1 *engine; |
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259 assert(state); |
270
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260 |
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261 engine = (XSSIDPlay1 *) state->internal; |
270
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262 |
660
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263 /* Free internals */ |
837 | 264 if (engine->emu) |
265 { | |
764 | 266 delete engine->emu; |
267 engine->emu = NULL; | |
660
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268 } |
359
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269 |
837 | 270 if (engine->tune) |
271 { | |
764 | 272 delete engine->tune; |
273 engine->tune = NULL; | |
660
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274 } |
527
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275 |
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276 xs_sidplay1_delete(state); |
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277 |
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278 g_free(engine); |
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279 state->internal = NULL; |
364
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280 } |
270
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281 |
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282 |
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283 /* Initialize current song and sub-tune |
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284 */ |
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285 gboolean xs_sidplay1_initsong(XSEngineState * state) |
364
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286 { |
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287 XSSIDPlay1 *engine; |
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288 assert(state); |
359
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289 |
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290 engine = (XSSIDPlay1 *) state->internal; |
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291 if (!engine) return FALSE; |
270
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292 |
837 | 293 if (!engine->tune) |
294 { | |
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295 xs_error("[SIDPlay1] SID-tune struct pointer was NULL. This should not happen, report to XMMS-SID author.\n"); |
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296 return FALSE; |
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297 } |
270
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298 |
837 | 299 if (!engine->tune->getStatus()) |
300 { | |
660
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301 xs_error("[SIDPlay1] SID-tune status check failed. This should not happen, report to XMMS-SID author.\n"); |
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302 return FALSE; |
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303 } |
359
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304 |
764 | 305 return sidEmuInitializeSong(*engine->emu, *engine->tune, state->currSong); |
364
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306 } |
270
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307 |
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308 |
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309 /* Emulate and render audio data to given buffer |
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310 */ |
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311 guint xs_sidplay1_fillbuffer(XSEngineState * state, gchar * audioBuffer, guint audioBufSize) |
364
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312 { |
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313 XSSIDPlay1 *engine; |
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314 assert(state); |
270
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315 |
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316 engine = (XSSIDPlay1 *) state->internal; |
754
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317 if (!engine) return 0; |
270
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318 |
764 | 319 sidEmuFillBuffer(*engine->emu, *engine->tune, audioBuffer, audioBufSize); |
359
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320 |
660
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321 return audioBufSize; |
364
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322 } |
270
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323 |
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324 |
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325 /* Load a given SID-tune file |
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326 */ |
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327 gboolean xs_sidplay1_load(XSEngineState * state, gchar * filename) |
364
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328 { |
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329 XSSIDPlay1 *engine; |
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330 assert(state); |
270
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331 |
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332 engine = (XSSIDPlay1 *) state->internal; |
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333 if (!engine) return FALSE; |
270
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334 |
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335 /* Try to get the tune */ |
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336 if (!filename) return FALSE; |
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337 |
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338 if (xs_fload_buffer(filename, &(engine->buf), &(engine->bufSize)) != 0) |
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339 return FALSE; |
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340 |
764 | 341 if (!engine->tune->load(engine->buf, engine->bufSize)) |
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342 return FALSE; |
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343 |
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344 return TRUE; |
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345 } |
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346 |
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347 |
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348 /* Delete INTERNAL information |
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349 */ |
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350 void xs_sidplay1_delete(XSEngineState * state) |
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351 { |
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352 XSSIDPlay1 *engine; |
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353 assert(state); |
74 | 354 |
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355 engine = (XSSIDPlay1 *) state->internal; |
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356 if (!engine) return; |
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357 |
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358 g_free(engine->buf); |
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359 engine->buf = NULL; |
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360 engine->bufSize = 0; |
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361 } |
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362 |
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363 |
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364 } /* extern "C" */ |
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365 #endif /* HAVE_SIDPLAY1 */ |