Mercurial > hg > xmms-sid
annotate src/xs_sidplay2.cc @ 833:c0e892fa914a
Begin moving libSIDPlay2-FP stuff to a separete module by removing the
relevant parts from the libSIDPlay2 backend interface.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Thu, 08 Nov 2012 20:45:28 +0200 |
parents | b158abe91a75 |
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rev | line source |
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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 |
833
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4 libSIDPlay v2 support |
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5 |
324 | 6 Programmed and designed by Matti 'ccr' Hamalainen <ccr@tnsp.org> |
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7 (C) Copyright 1999-2012 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 |
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25 #ifdef HAVE_SIDPLAY2 |
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26 |
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27 #include "xs_sidplay2.h" |
832 | 28 #include "xs_slsup.h" |
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29 #include "xs_config.h" |
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30 |
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31 #include <sidplay/sidplay2.h> |
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32 #if G_BYTE_ORDER == G_BIG_ENDIAN |
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33 # define SID2_NATIVE_UNSIGNED SID2_BIG_UNSIGNED |
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34 # define SID2_NATIVE_SIGNED SID2_BIG_SIGNED |
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35 #elif G_BYTE_ORDER == G_LITTLE_ENDIAN |
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36 # define SID2_NATIVE_UNSIGNED SID2_LITTLE_UNSIGNED |
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37 # define SID2_NATIVE_SIGNED SID2_LITTLE_SIGNED |
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38 #else |
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39 # error Unsupported endianess! |
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40 #endif |
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41 |
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42 |
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43 class XSSIDPlay2 { |
695 | 44 public: |
770 | 45 sidplay2 emu; |
765 | 46 sid2_config_t config; |
820 | 47 SidTune tune; |
765 | 48 |
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49 XSSIDPlay2(void); |
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50 virtual ~XSSIDPlay2(void); |
695 | 51 }; |
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52 |
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53 |
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54 #ifdef HAVE_RESID_BUILDER |
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55 # include <sidplay/builders/resid.h> |
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56 #endif |
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57 |
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58 #ifdef HAVE_HARDSID_BUILDER |
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59 # include <sidplay/builders/hardsid.h> |
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60 #endif |
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61 |
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62 |
820 | 63 XSSIDPlay2::XSSIDPlay2(void) : tune(0) |
695 | 64 { |
65 } | |
66 | |
67 | |
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68 XSSIDPlay2::~XSSIDPlay2(void) |
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69 { |
820 | 70 emu.load(NULL); |
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71 } |
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72 |
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73 |
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74 /* We need to 'export' all this pseudo-C++ crap */ |
396 | 75 extern "C" { |
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76 |
75
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77 |
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78 /* Return song information |
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79 */ |
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80 #define TFUNCTION xs_sidplay2_getinfo |
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81 #define TFUNCTION2 xs_sidplay2_updateinfo |
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82 #define TTUNEINFO SidTuneInfo |
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83 #define TTUNE SidTune |
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84 #define TENGINE XSSIDPlay2 |
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85 #include "xs_sidplay.h" |
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86 |
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87 |
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88 /* Check if we can play the given file |
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89 */ |
751 | 90 gboolean xs_sidplay2_probe(XSFile *f) |
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91 { |
702 | 92 gchar tmpBuf[5]; |
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93 |
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94 if (!f) return FALSE; |
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95 |
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96 if (xs_fread(tmpBuf, sizeof(gchar), 4, f) != 4) |
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97 return FALSE; |
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98 |
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99 if (!strncmp(tmpBuf, "PSID", 4) || !strncmp(tmpBuf, "RSID", 4)) |
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100 return TRUE; |
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101 else |
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102 return FALSE; |
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103 } |
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104 |
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105 |
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106 /* Initialize SIDPlay2 |
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107 */ |
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108 gboolean xs_sidplay2_init(XSEngineState * state) |
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109 { |
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110 XSSIDPlay2 *engine; |
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111 sid_filter_t tmpFilter; |
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112 xs_sid_filter_t *f; |
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113 gint i; |
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114 assert(state); |
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115 |
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116 /* Allocate internal structures */ |
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117 engine = new XSSIDPlay2(); |
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118 state->internal = engine; |
770 | 119 if (!engine) |
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120 return FALSE; |
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121 |
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122 /* Get current configuration */ |
770 | 123 engine->config = engine->emu.config(); |
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124 |
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125 /* Configure channels and stuff */ |
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126 switch (state->audioChannels) |
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127 { |
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128 case XS_CHN_AUTOPAN: |
765 | 129 engine->config.playback = sid2_stereo; |
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130 break; |
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131 |
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132 case XS_CHN_STEREO: |
765 | 133 engine->config.playback = sid2_stereo; |
744
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135 |
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136 case XS_CHN_MONO: |
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137 default: |
765 | 138 engine->config.playback = sid2_mono; |
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139 state->audioChannels = XS_CHN_MONO; |
744
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140 break; |
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141 } |
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142 |
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143 |
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144 /* Memory mode settings */ |
766
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145 switch (xs_cfg.memoryMode) |
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146 { |
744
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147 case XS_MPU_BANK_SWITCHING: |
765 | 148 engine->config.environment = sid2_envBS; |
744
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149 break; |
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150 |
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151 case XS_MPU_TRANSPARENT_ROM: |
765 | 152 engine->config.environment = sid2_envTP; |
744
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153 break; |
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154 |
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155 case XS_MPU_PLAYSID_ENVIRONMENT: |
765 | 156 engine->config.environment = sid2_envPS; |
744
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157 break; |
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158 |
744
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159 case XS_MPU_REAL: |
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160 default: |
765 | 161 engine->config.environment = sid2_envR; |
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162 xs_cfg.memoryMode = XS_MPU_REAL; |
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163 break; |
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164 } |
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165 |
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166 |
660
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167 /* Audio parameters sanity checking and setup */ |
765 | 168 engine->config.precision = state->audioBitsPerSample; |
169 engine->config.frequency = state->audioFrequency; | |
748
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170 |
74 | 171 |
766
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172 switch (state->audioBitsPerSample) |
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173 { |
757
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174 case XS_RES_8BIT: |
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175 state->audioFormat = FMT_U8; |
765 | 176 engine->config.sampleFormat = SID2_LITTLE_UNSIGNED; |
758 | 177 break; |
359
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178 |
757
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179 case XS_RES_16BIT: |
660
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180 default: |
766
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181 switch (state->audioFormat) |
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182 { |
757
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183 case FMT_U16_LE: |
765 | 184 engine->config.sampleFormat = SID2_LITTLE_UNSIGNED; |
757
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185 break; |
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186 |
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187 case FMT_U16_BE: |
765 | 188 engine->config.sampleFormat = SID2_BIG_UNSIGNED; |
757
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189 break; |
127
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190 |
757
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191 case FMT_U16_NE: |
765 | 192 engine->config.sampleFormat = SID2_NATIVE_UNSIGNED; |
757
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193 break; |
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194 |
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195 case FMT_S16_LE: |
765 | 196 engine->config.sampleFormat = SID2_LITTLE_SIGNED; |
757
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197 break; |
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198 |
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199 case FMT_S16_BE: |
765 | 200 engine->config.sampleFormat = SID2_BIG_SIGNED; |
757
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201 break; |
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202 |
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203 default: |
821
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204 state->audioFormat = FMT_S16_NE; |
765 | 205 engine->config.sampleFormat = SID2_NATIVE_SIGNED; |
757
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206 break; |
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207 } |
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208 break; |
660
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209 } |
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210 |
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211 /* Convert filter */ |
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212 f = &(xs_cfg.sid2Filter); |
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213 XSDEBUG("using filter '%s', %d points\n", f->name, f->npoints); |
766
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214 if (f->npoints > XS_SIDPLAY2_NFPOINTS) |
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215 { |
660
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216 xs_error("[SIDPlay2] Invalid number of filter curve points (%d > %d)\n", |
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217 f->npoints, XS_SIDPLAY2_NFPOINTS); |
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218 f->npoints = XS_SIDPLAY2_NFPOINTS; |
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219 } |
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220 |
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221 tmpFilter.points = f->npoints; |
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222 for (i = 0; i < f->npoints; i++) |
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223 { |
660
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224 tmpFilter.cutoff[i][0] = f->points[i].x; |
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225 tmpFilter.cutoff[i][1] = f->points[i].y; |
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226 } |
352 | 227 |
660
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228 /* Initialize builder object */ |
770 | 229 XSDEBUG("init builder #%i, maxsids=%i\n", xs_cfg.sid2Builder, (engine->emu.info()).maxsids); |
761 | 230 |
765 | 231 switch (xs_cfg.sid2Builder) |
232 { | |
364
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233 #ifdef HAVE_RESID_BUILDER |
765 | 234 case XS_BLD_RESID: |
773
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235 { |
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236 ReSIDBuilder *rs = new ReSIDBuilder("ReSID builder"); |
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237 if (rs) |
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238 { |
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239 engine->config.sidEmulation = rs; |
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240 if (!*rs) return FALSE; |
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241 rs->create((engine->emu.info()).maxsids); |
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242 if (!*rs) return FALSE; |
765 | 243 } |
660
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244 } |
765 | 245 break; |
321
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246 #endif |
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247 |
321
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248 #ifdef HAVE_HARDSID_BUILDER |
765 | 249 case XS_BLD_HARDSID: |
250 { | |
251 HardSIDBuilder *hs = new HardSIDBuilder("HardSID builder (FP)"); | |
770 | 252 engine->config.sidEmulation = (sidbuilder *) hs; |
765 | 253 if (hs) |
254 { | |
770 | 255 hs->create((engine->emu.info()).maxsids); |
765 | 256 if (!*hs) |
257 { | |
258 xs_error("hardSID->create() failed.\n"); | |
259 return FALSE; | |
260 } | |
261 } | |
660
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262 } |
765 | 263 break; |
264 #endif | |
265 | |
266 default: | |
267 xs_error("[SIDPlay2] Invalid or unsupported builder selected.\n"); | |
268 break; | |
269 } | |
359
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270 |
770 | 271 if (!engine->config.sidEmulation) |
765 | 272 { |
660
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273 xs_error("[SIDPlay2] Could not initialize SIDBuilder object.\n"); |
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274 return FALSE; |
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275 } |
321
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276 |
833
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277 #if 0 |
765 | 278 // Setup filter |
770 | 279 engine->config.sidEmulation->filter(xs_cfg.emulateFilters); |
280 if (!*(engine->config.sidEmulation)) | |
765 | 281 { |
282 xs_error("builder->filter(%d) failed.\n", xs_cfg.emulateFilters); | |
283 return FALSE; | |
284 } | |
795
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285 #endif |
765 | 286 |
770 | 287 XSDEBUG("%s\n", engine->config.sidEmulation->credits()); |
321
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288 |
660
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289 /* Clockspeed settings */ |
765 | 290 switch (xs_cfg.clockSpeed) |
291 { | |
292 case XS_CLOCK_NTSC: | |
293 engine->config.clockDefault = SID2_CLOCK_NTSC; | |
294 break; | |
366
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295 |
765 | 296 default: |
297 case XS_CLOCK_PAL: | |
298 engine->config.clockDefault = SID2_CLOCK_PAL; | |
299 xs_cfg.clockSpeed = XS_CLOCK_PAL; | |
300 break; | |
660
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301 } |
366
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302 |
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303 |
660
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304 /* Configure rest of the emulation */ |
765 | 305 if (xs_cfg.forceSpeed) |
306 { | |
307 engine->config.clockForced = true; | |
308 engine->config.clockSpeed = engine->config.clockDefault; | |
309 } | |
310 else | |
311 { | |
312 engine->config.clockForced = false; | |
313 engine->config.clockSpeed = SID2_CLOCK_CORRECT; | |
660
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314 } |
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315 |
710
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316 |
761 | 317 if (xs_cfg.sid2OptLevel < 0 || xs_cfg.sid2OptLevel > SID2_MAX_OPTIMISATION) |
318 { | |
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319 xs_error("Invalid sid2OptLevel=%d, falling back to %d.\n", |
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320 xs_cfg.sid2OptLevel, SID2_DEFAULT_OPTIMISATION); |
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321 |
761 | 322 xs_cfg.sid2OptLevel = SID2_DEFAULT_OPTIMISATION; |
660
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323 } |
766
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324 engine->config.optimisation = xs_cfg.sid2OptLevel; |
366
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325 |
765 | 326 engine->config.sidDefault = xs_cfg.mos8580 ? SID2_MOS8580 : SID2_MOS6581; |
327 engine->config.sidModel = xs_cfg.forceModel ? engine->config.sidDefault : SID2_MODEL_CORRECT; | |
328 engine->config.sidSamples = TRUE; | |
321
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329 |
660
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330 return TRUE; |
364
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331 } |
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332 |
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333 |
270
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334 /* Close SIDPlay2 engine |
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335 */ |
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336 void xs_sidplay2_close(XSEngineState * state) |
364
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337 { |
769 | 338 XSSIDPlay2 *engine = (XSSIDPlay2 *) state->internal; |
359
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339 |
775
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340 xs_sidplay2_delete(state); |
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341 |
770 | 342 if (engine) |
343 { | |
344 delete engine; | |
775
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345 engine = NULL; |
660
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346 } |
270
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347 |
754
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348 state->internal = NULL; |
364
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349 } |
270
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350 |
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351 |
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352 /* Initialize current song and sub-tune |
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353 */ |
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354 gboolean xs_sidplay2_initsong(XSEngineState * state) |
364
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355 { |
768 | 356 XSSIDPlay2 *engine = (XSSIDPlay2 *) state->internal; |
359
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357 |
768 | 358 if (!engine) |
359 return FALSE; | |
270
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360 |
820 | 361 if (!engine->tune.selectSong(state->currSong)) |
769 | 362 { |
820 | 363 xs_error("[SIDPlay2] tune.selectSong() failed\n"); |
364 return FALSE; | |
365 } | |
366 | |
367 if (engine->emu.load(&(engine->tune)) < 0) | |
368 { | |
369 xs_error("[SIDPlay2] emu.load() failed\n"); | |
660
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370 return FALSE; |
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371 } |
359
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372 |
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373 if (engine->emu.config(engine->config) < 0) |
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374 { |
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375 xs_error("[SIDPlay2] Emulator engine configuration failed!\n"); |
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376 return FALSE; |
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377 } |
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378 |
660
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379 return TRUE; |
364
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380 } |
270
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381 |
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382 |
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383 /* Emulate and render audio data to given buffer |
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384 */ |
754
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385 guint xs_sidplay2_fillbuffer(XSEngineState * state, gchar * audioBuffer, guint audioBufSize) |
364
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386 { |
768 | 387 XSSIDPlay2 *engine = (XSSIDPlay2 *) state->internal; |
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388 |
768 | 389 if (!engine) |
390 return 0; | |
270
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391 |
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392 return engine->emu.play(audioBuffer, audioBufSize); |
364
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393 } |
270
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394 |
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395 |
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396 /* Load a given SID-tune file |
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397 */ |
765 | 398 gboolean xs_sidplay2_load(XSEngineState * state, gchar * filename) |
364
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399 { |
768 | 400 XSSIDPlay2 *engine = (XSSIDPlay2 *) state->internal; |
401 | |
820 | 402 if (!engine || !filename) |
768 | 403 return FALSE; |
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404 |
820 | 405 engine->tune.load(filename); |
406 if (!engine->tune) | |
407 { | |
408 xs_error("Could not load file '%s': %s\n", | |
409 filename, (engine->tune.getInfo()).statusString); | |
660
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410 return FALSE; |
820 | 411 } |
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412 |
660
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413 return TRUE; |
364
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414 } |
270
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415 |
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416 |
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417 /* Delete INTERNAL information |
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418 */ |
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419 void xs_sidplay2_delete(XSEngineState * state) |
364
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420 { |
768 | 421 XSSIDPlay2 *engine = (XSSIDPlay2 *) state->internal; |
526
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422 } |
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423 |
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424 |
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425 /* Hardware backend flushing |
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426 */ |
754
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427 void xs_sidplay2_flush(XSEngineState * state) |
526
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428 { |
779
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429 XSSIDPlay2 *engine = (XSSIDPlay2 *) state->internal; |
526
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430 |
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431 #ifdef HAVE_HARDSID_BUILDER |
768 | 432 if (xs_cfg.sid2Builder == XS_BLD_HARDSID) |
433 { | |
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434 ((HardSIDBuilder *) engine->config.sidEmulation)->flush(); |
768 | 435 } |
526
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436 #endif |
364
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437 } |
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438 |
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439 |
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440 } /* extern "C" */ |
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441 #endif /* HAVE_SIDPLAY2 */ |