Mercurial > hg > xmms-sid
annotate src/xs_sidplay2.cc @ 757:9c135d421676
Clean up endianess handling a bit.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Mon, 05 Nov 2012 19:03:27 +0200 |
parents | 8299288df6d2 |
children | 6c8c968595d9 |
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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 v2 and libSIDPlay v2-FP 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 |
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. |
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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 |
460 | 27 #include <stdio.h> |
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28 #include "xs_sidplay2.h" |
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29 #include "xs_config.h" |
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30 |
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31 |
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32 #ifdef HAVE_SIDPLAY2_FP |
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33 # include <sidplayfp/sidplay2.h> |
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34 # include <sidplayfp/SidTune.h> |
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35 #else |
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36 # include <sidplay/sidplay2.h> |
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37 # include <sidplay/sidlazyiptr.h> |
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38 # if G_BYTE_ORDER == G_BIG_ENDIAN |
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39 # define SID2_NATIVE_UNSIGNED SID2_BIG_UNSIGNED |
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40 # define SID2_NATIVE_SIGNED SID2_BIG_SIGNED |
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41 # elif G_BYTE_ORDER == G_LITTLE_ENDIAN |
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42 # define SID2_NATIVE_UNSIGNED SID2_LITTLE_UNSIGNED |
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43 # define SID2_NATIVE_SIGNED SID2_LITTLE_SIGNED |
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44 # else |
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45 # error Unsupported endianess! |
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46 # endif |
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47 #endif |
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48 |
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49 |
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50 class XSSIDPlay2 { |
695 | 51 public: |
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52 #ifdef HAVE_SIDPLAY2_FP |
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53 sidplay2 *currEng; |
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54 sidbuilder *currBuilder; |
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55 #else |
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56 SidIPtr<ISidplay2> currEng; |
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57 SidLazyIPtr<ISidUnknown> currBuilder; |
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58 #endif |
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59 sid2_config_t currConfig; |
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60 SidTune *currTune; |
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61 guint8 *buf; |
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62 size_t bufSize; |
695 | 63 |
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64 XSSIDPlay2(void); |
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65 virtual ~XSSIDPlay2(void) { ; } |
695 | 66 }; |
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67 |
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68 |
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69 #ifdef HAVE_RESID_BUILDER |
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70 # ifdef HAVE_SIDPLAY2_FP |
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71 # include <sidplayfp/builders/resid.h> |
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72 # else |
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73 # include <sidplay/builders/resid.h> |
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74 # endif |
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75 #endif |
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76 |
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77 #ifdef HAVE_HARDSID_BUILDER |
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78 # ifdef HAVE_SIDPLAY2_FP |
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79 # include <sidplayfp/builders/hardsid.h> |
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80 # else |
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81 # include <sidplay/builders/hardsid.h> |
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82 # endif |
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83 #endif |
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84 |
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85 |
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86 XSSIDPlay2::XSSIDPlay2(void) |
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87 #ifdef HAVE_SIDPLAY2_FP |
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88 :currEng(NULL) |
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89 #else |
695 | 90 :currEng(sidplay2::create()) |
91 #endif | |
92 { | |
93 buf = NULL; | |
94 bufSize = 0; | |
95 currTune = NULL; | |
96 currBuilder = NULL; | |
97 } | |
98 | |
99 | |
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100 /* We need to 'export' all this pseudo-C++ crap */ |
396 | 101 extern "C" { |
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102 |
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103 |
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104 /* Return song information |
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105 */ |
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106 #define TFUNCTION xs_sidplay2_getinfo |
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107 #define TFUNCTION2 xs_sidplay2_updateinfo |
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108 #define TTUNEINFO SidTuneInfo |
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109 #define TTUNE SidTune |
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110 #define TENGINE XSSIDPlay2 |
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111 #include "xs_sidplay.h" |
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112 |
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113 |
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114 /* Check if we can play the given file |
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115 */ |
751 | 116 gboolean xs_sidplay2_probe(XSFile *f) |
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117 { |
702 | 118 gchar tmpBuf[5]; |
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119 |
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120 if (!f) return FALSE; |
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121 |
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122 if (xs_fread(tmpBuf, sizeof(gchar), 4, f) != 4) |
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123 return FALSE; |
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124 |
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125 if (!strncmp(tmpBuf, "PSID", 4) || !strncmp(tmpBuf, "RSID", 4)) |
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126 return TRUE; |
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127 else |
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128 return FALSE; |
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129 } |
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130 |
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131 |
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132 /* Initialize SIDPlay2 |
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133 */ |
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134 gboolean xs_sidplay2_init(XSEngineState * state) |
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135 { |
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136 gint i; |
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137 XSSIDPlay2 *engine; |
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138 sid_filter_t tmpFilter; |
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139 xs_sid_filter_t *f; |
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140 assert(state); |
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141 |
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142 /* Allocate internal structures */ |
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143 engine = new XSSIDPlay2(); |
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144 state->internal = engine; |
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145 if (!engine) return FALSE; |
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146 |
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147 /* Initialize the engine */ |
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148 #ifdef HAVE_SIDPLAY2_FP |
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149 engine->currEng = new sidplay2; |
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150 #endif |
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151 if (!engine->currEng) { |
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152 xs_error("[SIDPlay2] Could not initialize emulation engine.\n"); |
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153 return FALSE; |
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154 } |
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155 |
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156 /* Get current configuration */ |
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157 engine->currConfig = engine->currEng->config(); |
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158 |
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159 /* Configure channels and stuff */ |
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160 switch (state->audioChannels) { |
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161 case XS_CHN_AUTOPAN: |
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162 engine->currConfig.playback = sid2_stereo; |
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163 break; |
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164 |
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165 case XS_CHN_STEREO: |
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166 engine->currConfig.playback = sid2_stereo; |
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167 break; |
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168 |
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169 case XS_CHN_MONO: |
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170 default: |
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171 engine->currConfig.playback = sid2_mono; |
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172 state->audioChannels = XS_CHN_MONO; |
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173 break; |
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174 } |
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175 |
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176 |
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177 /* Memory mode settings */ |
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178 switch (xs_cfg.memoryMode) { |
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179 case XS_MPU_BANK_SWITCHING: |
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180 engine->currConfig.environment = sid2_envBS; |
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181 break; |
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182 |
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183 case XS_MPU_TRANSPARENT_ROM: |
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184 engine->currConfig.environment = sid2_envTP; |
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185 break; |
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186 |
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187 case XS_MPU_PLAYSID_ENVIRONMENT: |
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188 engine->currConfig.environment = sid2_envPS; |
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189 break; |
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190 |
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191 case XS_MPU_REAL: |
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192 default: |
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193 engine->currConfig.environment = sid2_envR; |
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194 xs_cfg.memoryMode = XS_MPU_REAL; |
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195 break; |
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196 } |
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197 |
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198 |
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199 /* Audio parameters sanity checking and setup */ |
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200 #ifndef HAVE_SIDPLAY2_FP |
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201 engine->currConfig.precision = state->audioBitsPerSample; |
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202 |
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203 #else |
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204 state->audioBitsPerSample = XS_RES_16BIT; |
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205 engine->currConfig.samplingMethod = SID2_RESAMPLE_INTERPOLATE; |
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206 #endif |
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207 |
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208 engine->currConfig.frequency = state->audioFrequency; |
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209 |
74 | 210 |
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211 switch (state->audioBitsPerSample) { |
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212 case XS_RES_8BIT: |
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213 state->audioFormat = FMT_U8; |
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214 #ifndef HAVE_SIDPLAY2_FP |
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215 engine->currConfig.sampleFormat = SID2_LITTLE_UNSIGNED; |
74 | 216 #endif |
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217 break; |
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218 |
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219 case XS_RES_16BIT: |
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220 default: |
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221 state->audioFormat = FMT_S16_NE; |
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222 #ifndef HAVE_SIDPLAY2_FP |
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223 switch (state->audioFormat) { |
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224 case FMT_U16_LE: |
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225 engine->currConfig.sampleFormat = SID2_LITTLE_UNSIGNED; |
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226 break; |
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227 |
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228 case FMT_U16_BE: |
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229 engine->currConfig.sampleFormat = SID2_BIG_UNSIGNED; |
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230 break; |
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231 |
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232 case FMT_U16_NE: |
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233 engine->currConfig.sampleFormat = SID2_NATIVE_UNSIGNED; |
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234 break; |
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235 |
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236 case FMT_S16_LE: |
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237 engine->currConfig.sampleFormat = SID2_LITTLE_SIGNED; |
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238 break; |
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239 |
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240 case FMT_S16_BE: |
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241 engine->currConfig.sampleFormat = SID2_BIG_SIGNED; |
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242 break; |
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243 |
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244 default: |
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245 engine->currConfig.sampleFormat = SID2_NATIVE_SIGNED; |
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246 break; |
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247 } |
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248 #endif |
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249 break; |
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250 } |
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251 |
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252 /* Convert filter */ |
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253 f = &(xs_cfg.sid2Filter); |
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254 XSDEBUG("using filter '%s', %d points\n", f->name, f->npoints); |
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255 if (f->npoints > XS_SIDPLAY2_NFPOINTS) { |
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256 xs_error("[SIDPlay2] Invalid number of filter curve points (%d > %d)\n", |
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257 f->npoints, XS_SIDPLAY2_NFPOINTS); |
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258 f->npoints = XS_SIDPLAY2_NFPOINTS; |
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259 } |
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260 |
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261 tmpFilter.points = f->npoints; |
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262 for (i = 0; i < f->npoints; i++) { |
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263 tmpFilter.cutoff[i][0] = f->points[i].x; |
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264 tmpFilter.cutoff[i][1] = f->points[i].y; |
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265 } |
352 | 266 |
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267 /* Initialize builder object */ |
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268 XSDEBUG("init builder #%i, maxsids=%i\n", xs_cfg.sid2Builder, (engine->currEng->info()).maxsids); |
364
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269 #ifdef HAVE_RESID_BUILDER |
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270 if (xs_cfg.sid2Builder == XS_BLD_RESID) { |
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271 #ifdef HAVE_SIDPLAY2_FP |
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272 ReSIDBuilder *rs = new ReSIDBuilder("ReSID builder"); |
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273 engine->currBuilder = (sidbuilder *) rs; |
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274 if (rs) { |
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275 #else |
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276 engine->currBuilder = ReSIDBuilderCreate(""); |
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277 SidLazyIPtr<IReSIDBuilder> rs(engine->currBuilder); |
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278 if (rs) { |
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279 engine->currConfig.sidEmulation = rs->iaggregate(); |
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280 #endif |
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281 /* Builder object created, initialize it */ |
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282 rs->create((engine->currEng->info()).maxsids); |
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283 if (!*rs) { |
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284 xs_error("reSID->create() failed.\n"); |
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285 return FALSE; |
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286 } |
359
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287 |
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288 rs->filter(xs_cfg.emulateFilters); |
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289 if (!*rs) { |
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290 xs_error("reSID->filter(%d) failed.\n", xs_cfg.emulateFilters); |
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291 return FALSE; |
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292 } |
359
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293 |
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294 #if !defined(HAVE_SIDPLAY2_FP) |
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295 // FIXME FIX ME: support other configurable parameters ... |
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296 // ... WHEN/IF resid-builder+libsidplay2 gets fixed |
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297 rs->sampling(tmpFreq); |
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298 if (!*rs) { |
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299 xs_error("reSID->sampling(%d) failed.\n", tmpFreq); |
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300 return FALSE; |
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301 } |
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302 if (tmpFilter.points > 0) |
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303 rs->filter((sid_filter_t *) &tmpFilter); |
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304 else |
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305 #endif |
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306 rs->filter((sid_filter_t *) NULL); |
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307 |
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308 if (!*rs) { |
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309 xs_error("reSID->filter(NULL) failed.\n"); |
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310 return FALSE; |
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311 } |
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312 } |
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313 } |
321
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314 #endif |
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315 |
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316 #ifdef HAVE_HARDSID_BUILDER |
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317 if (xs_cfg.sid2Builder == XS_BLD_HARDSID) { |
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318 #ifdef HAVE_SIDPLAY2_FP |
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319 HardSIDBuilder *hs = new HardSIDBuilder("HardSID builder"); |
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320 engine->currBuilder = (sidbuilder *) hs; |
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321 if (hs) { |
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322 #else |
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323 engine->currBuilder = HardSIDBuilderCreate(""); |
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324 SidLazyIPtr<IHardSIDBuilder> hs(engine->currBuilder); |
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325 if (hs) { |
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326 engine->currConfig.sidEmulation = hs->iaggregate(); |
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327 #endif |
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328 /* Builder object created, initialize it */ |
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329 hs->create((engine->currEng->info()).maxsids); |
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330 if (!*hs) { |
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331 xs_error("hardSID->create() failed.\n"); |
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332 return FALSE; |
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333 } |
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334 |
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335 hs->filter(xs_cfg.emulateFilters); |
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336 if (!*hs) { |
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337 xs_error("hardSID->filter(%d) failed.\n", xs_cfg.emulateFilters); |
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338 return FALSE; |
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339 } |
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340 } |
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341 } |
321
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342 #endif |
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343 |
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344 if (!engine->currBuilder) { |
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345 xs_error("[SIDPlay2] Could not initialize SIDBuilder object.\n"); |
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346 return FALSE; |
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347 } |
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348 |
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349 #ifdef HAVE_SIDPLAY2_FP |
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350 engine->currConfig.sidEmulation = engine->currBuilder; |
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351 XSDEBUG("%s\n", engine->currBuilder->credits()); |
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352 #endif |
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353 |
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354 /* Clockspeed settings */ |
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355 switch (xs_cfg.clockSpeed) { |
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356 case XS_CLOCK_NTSC: |
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357 engine->currConfig.clockDefault = SID2_CLOCK_NTSC; |
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358 break; |
366
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359 |
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360 default: |
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361 xs_error("[SIDPlay2] Invalid clockSpeed=%d, falling back to PAL.\n", |
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362 xs_cfg.clockSpeed); |
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363 |
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364 case XS_CLOCK_PAL: |
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365 engine->currConfig.clockDefault = SID2_CLOCK_PAL; |
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366 xs_cfg.clockSpeed = XS_CLOCK_PAL; |
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367 break; |
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368 } |
366
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369 |
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370 |
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371 /* Configure rest of the emulation */ |
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372 if (xs_cfg.forceSpeed) { |
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373 engine->currConfig.clockForced = true; |
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374 engine->currConfig.clockSpeed = engine->currConfig.clockDefault; |
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375 } else { |
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376 engine->currConfig.clockForced = false; |
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377 engine->currConfig.clockSpeed = SID2_CLOCK_CORRECT; |
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378 } |
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379 |
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380 |
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381 #if !defined(HAVE_SIDPLAY2_FP) |
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382 if ((xs_cfg.sid2OptLevel >= 0) && (xs_cfg.sid2OptLevel <= SID2_MAX_OPTIMISATION)) |
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383 engine->currConfig.optimisation = xs_cfg.sid2OptLevel; |
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384 else { |
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385 xs_error("Invalid sid2OptLevel=%d, falling back to %d.\n", |
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386 xs_cfg.sid2OptLevel, SID2_DEFAULT_OPTIMISATION); |
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387 |
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388 xs_cfg.sid2OptLevel = |
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389 engine->currConfig.optimisation = SID2_DEFAULT_OPTIMISATION; |
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390 } |
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391 #endif |
366
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392 |
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393 if (xs_cfg.mos8580) |
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394 engine->currConfig.sidDefault = SID2_MOS8580; |
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395 else |
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396 engine->currConfig.sidDefault = SID2_MOS6581; |
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397 |
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398 if (xs_cfg.forceModel) |
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399 engine->currConfig.sidModel = engine->currConfig.sidDefault; |
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400 else |
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401 engine->currConfig.sidModel = SID2_MODEL_CORRECT; |
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402 |
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403 /* XXX: Should this be configurable? libSIDPlay1 does not support it, though */ |
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404 engine->currConfig.sidSamples = TRUE; |
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405 |
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406 |
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407 /* Now set the emulator configuration */ |
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408 if (engine->currEng->config(engine->currConfig) < 0) { |
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409 xs_error("[SIDPlay2] Emulator engine configuration failed!\n"); |
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410 return FALSE; |
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411 } |
73
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412 |
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413 /* Create the sidtune */ |
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414 engine->currTune = new SidTune(0); |
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415 if (!engine->currTune) { |
660
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416 xs_error("[SIDPlay2] Could not initialize SIDTune object.\n"); |
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417 return FALSE; |
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418 } |
359
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419 |
660
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420 return TRUE; |
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421 } |
73
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|
422 |
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423 |
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424 /* Close SIDPlay2 engine |
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425 */ |
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426 void xs_sidplay2_close(XSEngineState * state) |
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427 { |
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428 XSSIDPlay2 *engine; |
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429 assert(state); |
359
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430 |
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431 engine = (XSSIDPlay2 *) state->internal; |
359
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432 |
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433 /* Free internals */ |
754
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434 if (engine->currBuilder) { |
744
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435 #ifdef HAVE_SIDPLAY2_FP |
754
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436 delete engine->currBuilder; |
692
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437 #endif |
754
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438 engine->currBuilder = NULL; |
660
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|
439 } |
270
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440 |
744
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441 #ifdef HAVE_SIDPLAY2_FP |
754
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442 if (engine->currEng) { |
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diff
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|
443 delete engine->currEng; |
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444 engine->currEng = NULL; |
660
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445 } |
692
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446 #endif |
270
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447 |
754
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|
448 if (engine->currTune) { |
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|
449 delete engine->currTune; |
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450 engine->currTune = NULL; |
660
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|
451 } |
270
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452 |
754
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|
453 xs_sidplay2_delete(state); |
359
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|
454 |
754
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diff
changeset
|
455 delete engine; |
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|
456 state->internal = NULL; |
364
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457 } |
270
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458 |
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459 |
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460 /* Initialize current song and sub-tune |
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461 */ |
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462 gboolean xs_sidplay2_initsong(XSEngineState * state) |
364
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463 { |
756
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|
464 XSSIDPlay2 *engine; |
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|
465 assert(state); |
359
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|
466 |
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|
467 engine = (XSSIDPlay2 *) state->internal; |
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468 if (!engine) return FALSE; |
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469 |
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470 if (!engine->currTune->selectSong(state->currSong)) { |
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471 xs_error("[SIDPlay2] currTune->selectSong() failed\n"); |
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472 return FALSE; |
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473 } |
359
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474 |
754
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475 if (engine->currEng->load(engine->currTune) < 0) { |
660
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476 xs_error("[SIDPlay2] currEng->load() failed\n"); |
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|
477 return FALSE; |
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|
478 } |
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479 |
754
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480 state->isInitialized = TRUE; |
359
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481 |
660
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482 return TRUE; |
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|
483 } |
270
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|
484 |
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|
485 |
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486 /* Emulate and render audio data to given buffer |
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487 */ |
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|
488 guint xs_sidplay2_fillbuffer(XSEngineState * state, gchar * audioBuffer, guint audioBufSize) |
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489 { |
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|
490 XSSIDPlay2 *engine; |
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|
491 assert(state); |
270
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|
492 |
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|
493 engine = (XSSIDPlay2 *) state->internal; |
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|
494 if (!engine) return 0; |
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|
495 |
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496 return engine->currEng->play((short *) audioBuffer, audioBufSize / sizeof(short)); |
364
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497 } |
270
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498 |
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499 |
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500 /* Load a given SID-tune file |
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501 */ |
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502 gboolean xs_sidplay2_load(XSEngineState * state, gchar * pcFilename) |
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503 { |
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504 XSSIDPlay2 *engine; |
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505 assert(state); |
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506 state->isInitialized = FALSE; |
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507 |
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508 engine = (XSSIDPlay2 *) state->internal; |
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509 if (!engine) return FALSE; |
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510 |
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511 /* Try to get the tune */ |
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512 if (!pcFilename) return FALSE; |
367 | 513 |
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514 if (xs_fload_buffer(pcFilename, &(engine->buf), &(engine->bufSize)) != 0) |
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515 return FALSE; |
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516 |
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517 if (!engine->currTune->read(engine->buf, engine->bufSize)) |
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518 return FALSE; |
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519 |
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520 return TRUE; |
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521 } |
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522 |
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523 |
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524 /* Delete INTERNAL information |
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525 */ |
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526 void xs_sidplay2_delete(XSEngineState * state) |
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527 { |
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528 XSSIDPlay2 *engine; |
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529 assert(state); |
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530 |
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531 engine = (XSSIDPlay2 *) state->internal; |
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532 if (!engine) return; |
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533 |
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534 g_free(engine->buf); |
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535 engine->buf = NULL; |
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536 engine->bufSize = 0; |
526
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537 } |
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538 |
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539 |
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540 /* Hardware backend flushing |
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541 */ |
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542 void xs_sidplay2_flush(XSEngineState * state) |
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543 { |
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544 assert(state); |
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545 |
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546 #ifdef HAVE_HARDSID_BUILDER |
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547 #ifdef HSID_SID2_COM |
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548 IfPtr<HardSIDBuilder> hs(state->currBuilder); |
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549 if (hs) |
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550 hs->flush(); |
526
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551 #else |
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552 if (xs_cfg.sid2Builder == XS_BLD_HARDSID) |
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553 ((HardSIDBuilder *) state->currBuilder)->flush(); |
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554 #endif |
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555 #endif |
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556 } |
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557 |
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558 |
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559 } /* extern "C" */ |
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560 #endif /* HAVE_SIDPLAY2 */ |