1 /***************************************************************************
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2 externals.h - description
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4 begin : Wed May 15 2002
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5 copyright : (C) 2002 by Pete Bernert
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6 email : BlackDove@addcom.de
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7 ***************************************************************************/
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8 /***************************************************************************
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10 * This program is free software; you can redistribute it and/or modify *
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11 * it under the terms of the GNU General Public License as published by *
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12 * the Free Software Foundation; either version 2 of the License, or *
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13 * (at your option) any later version. See also the license.txt file for *
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14 * additional informations. *
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16 ***************************************************************************/
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20 /////////////////////////////////////////////////////////
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22 /////////////////////////////////////////////////////////
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24 #define PSE_LT_SPU 4
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25 #define PSE_SPU_ERR_SUCCESS 0
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26 #define PSE_SPU_ERR -60
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27 #define PSE_SPU_ERR_NOTCONFIGURED PSE_SPU_ERR - 1
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28 #define PSE_SPU_ERR_INIT PSE_SPU_ERR - 2
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30 #define max(a,b) (((a) > (b)) ? (a) : (b))
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31 #define min(a,b) (((a) < (b)) ? (a) : (b))
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34 ////////////////////////////////////////////////////////////////////////
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36 ////////////////////////////////////////////////////////////////////////
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41 // ~ FRAG_MSECS ms of data
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42 // note: must be even due to the way reverb works now
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43 #define FRAG_MSECS 2
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44 #define NSSIZE ((44100 * FRAG_MSECS / 1000 + 1) & ~1)
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46 ///////////////////////////////////////////////////////////
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48 ///////////////////////////////////////////////////////////
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50 // ADSR INFOS PER CHANNEL
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58 long SustainModeDec;
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61 unsigned long ReleaseVal;
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63 long ReleaseStartTime;
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71 unsigned char State:2;
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72 unsigned char AttackModeExp:1;
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73 unsigned char SustainModeExp:1;
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74 unsigned char SustainIncrease:1;
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75 unsigned char ReleaseModeExp:1;
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76 unsigned char AttackRate;
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77 unsigned char DecayRate;
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78 unsigned char SustainLevel;
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79 unsigned char SustainRate;
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80 unsigned char ReleaseRate;
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84 ///////////////////////////////////////////////////////////
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88 // used for debug channel muting
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91 // used for simple interpolation
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92 #define FLAG_IPOL0 2
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93 #define FLAG_IPOL1 4
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95 ///////////////////////////////////////////////////////////
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97 // MAIN CHANNEL STRUCT
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100 int iSBPos; // mixing stuff
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104 unsigned char * pCurr; // current pos in sound mem
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105 unsigned char * pLoop; // loop ptr in sound mem
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107 unsigned int bStop:1; // is channel stopped (sample _can_ still be playing, ADSR Release phase)
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108 unsigned int bReverb:1; // can we do reverb on this channel? must have ctrl register bit, to get active
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109 unsigned int bRVBActive:1; // reverb active flag
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110 unsigned int bNoise:1; // noise active flag
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111 unsigned int bFMod:2; // freq mod (0=off, 1=sound channel, 2=freq channel)
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112 unsigned int bJump:1; // last decoded block jumped
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114 int iLeftVolume; // left volume
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115 int iRightVolume; // right volume
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117 int iRawPitch; // raw pitch (0...3fff)
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122 ///////////////////////////////////////////////////////////
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126 int StartAddr; // reverb area start addr in samples
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127 int CurrAddr; // reverb area curr addr in samples
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134 int FB_SRC_A; // (offset)
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135 int FB_SRC_B; // (offset)
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136 int IIR_ALPHA; // (coef.)
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137 int ACC_COEF_A; // (coef.)
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138 int ACC_COEF_B; // (coef.)
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139 int ACC_COEF_C; // (coef.)
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140 int ACC_COEF_D; // (coef.)
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141 int IIR_COEF; // (coef.)
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142 int FB_ALPHA; // (coef.)
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143 int FB_X; // (coef.)
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144 int IIR_DEST_A0; // (offset)
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145 int IIR_DEST_A1; // (offset)
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146 int ACC_SRC_A0; // (offset)
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147 int ACC_SRC_A1; // (offset)
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148 int ACC_SRC_B0; // (offset)
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149 int ACC_SRC_B1; // (offset)
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150 int IIR_SRC_A0; // (offset)
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151 int IIR_SRC_A1; // (offset)
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152 int IIR_DEST_B0; // (offset)
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153 int IIR_DEST_B1; // (offset)
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154 int ACC_SRC_C0; // (offset)
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155 int ACC_SRC_C1; // (offset)
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156 int ACC_SRC_D0; // (offset)
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157 int ACC_SRC_D1; // (offset)
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158 int IIR_SRC_B1; // (offset)
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159 int IIR_SRC_B0; // (offset)
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160 int MIX_DEST_A0; // (offset)
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161 int MIX_DEST_A1; // (offset)
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162 int MIX_DEST_B0; // (offset)
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163 int MIX_DEST_B1; // (offset)
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164 int IN_COEF_L; // (coef.)
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165 int IN_COEF_R; // (coef.)
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167 int dirty; // registers changed
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169 // normalized offsets
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170 int nIIR_DEST_A0, nIIR_DEST_A1, nIIR_DEST_B0, nIIR_DEST_B1,
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171 nACC_SRC_A0, nACC_SRC_A1, nACC_SRC_B0, nACC_SRC_B1,
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172 nIIR_SRC_A0, nIIR_SRC_A1, nIIR_SRC_B0, nIIR_SRC_B1,
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173 nACC_SRC_C0, nACC_SRC_C1, nACC_SRC_D0, nACC_SRC_D1,
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174 nMIX_DEST_A0, nMIX_DEST_A1, nMIX_DEST_B0, nMIX_DEST_B1;
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175 // MIX_DEST_xx - FB_SRC_x
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176 int nFB_SRC_A0, nFB_SRC_A1, nFB_SRC_B0, nFB_SRC_B1;
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179 ///////////////////////////////////////////////////////////
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181 ///////////////////////////////////////////////////////////
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185 // psx buffers / addresses
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187 extern unsigned short regArea[];
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188 extern unsigned short spuMem[];
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189 extern unsigned char * spuMemC;
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190 extern unsigned char * pSpuIrq;
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191 extern unsigned char * pSpuBuffer;
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193 #define regAreaGet(ch,offset) \
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194 regArea[((ch<<4)|(offset))>>1]
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198 extern int iVolume;
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199 extern int iXAPitch;
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200 extern int iUseReverb;
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201 extern int iUseInterpolation;
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204 extern int had_dma;
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206 extern SPUCHAN s_chan[];
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207 extern REVERBInfo rvb;
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209 extern unsigned long dwNoiseVal;
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210 extern unsigned short spuCtrl;
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211 extern unsigned short spuStat;
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212 extern unsigned short spuIrq;
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213 extern unsigned long spuAddr;
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214 extern int bSpuInit;
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215 extern unsigned int dwNewChannel;
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216 extern unsigned int dwChannelOn;
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217 extern unsigned int dwPendingChanOff;
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218 extern unsigned int dwChannelDead;
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220 extern int SSumR[];
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221 extern int SSumL[];
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225 extern void (CALLBACK *cddavCallback)(unsigned short,unsigned short);
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229 ///////////////////////////////////////////////////////////
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231 ///////////////////////////////////////////////////////////
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235 extern xa_decode_t * xapGlobal;
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237 extern uint32_t * XAFeed;
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238 extern uint32_t * XAPlay;
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239 extern uint32_t * XAStart;
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240 extern uint32_t * XAEnd;
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242 extern uint32_t XARepeat;
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243 extern uint32_t XALastVal;
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245 extern uint32_t * CDDAFeed;
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246 extern uint32_t * CDDAPlay;
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247 extern uint32_t * CDDAStart;
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248 extern uint32_t * CDDAEnd;
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250 extern int iLeftXAVol;
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251 extern int iRightXAVol;
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255 ///////////////////////////////////////////////////////////
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256 // REVERB.C globals
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257 ///////////////////////////////////////////////////////////
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261 extern int * sRVBPlay;
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262 extern int * sRVBEnd;
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263 extern int * sRVBStart;
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