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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18 #ifndef __P_SOUND_EXTERNALS_H__
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19 #define __P_SOUND_EXTERNALS_H__
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23 /////////////////////////////////////////////////////////
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25 /////////////////////////////////////////////////////////
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27 //#define log_unhandled printf
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28 #define log_unhandled(...)
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31 #define noinline __attribute__((noinline))
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32 #define unlikely(x) __builtin_expect((x), 0)
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35 #define unlikely(x) x
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37 #if defined(__GNUC__) && !defined(_TMS320C6X)
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38 #define preload __builtin_prefetch
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40 #define preload(...)
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43 #define PSE_LT_SPU 4
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44 #define PSE_SPU_ERR_SUCCESS 0
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45 #define PSE_SPU_ERR -60
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46 #define PSE_SPU_ERR_NOTCONFIGURED PSE_SPU_ERR - 1
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47 #define PSE_SPU_ERR_INIT PSE_SPU_ERR - 2
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49 #define max(a,b) (((a) > (b)) ? (a) : (b))
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50 #define min(a,b) (((a) < (b)) ? (a) : (b))
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53 ////////////////////////////////////////////////////////////////////////
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55 ////////////////////////////////////////////////////////////////////////
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60 // note: must be even due to the way reverb works now
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61 #define NSSIZE ((44100 / 50 + 16) & ~1)
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63 ///////////////////////////////////////////////////////////
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65 ///////////////////////////////////////////////////////////
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74 // ADSR INFOS PER CHANNEL
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77 unsigned char State:2; // ADSR_State
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78 unsigned char AttackModeExp:1;
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79 unsigned char SustainModeExp:1;
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80 unsigned char SustainIncrease:1;
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81 unsigned char ReleaseModeExp:1;
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82 unsigned char AttackRate;
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83 unsigned char DecayRate;
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84 unsigned char SustainLevel;
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85 unsigned char SustainRate;
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86 unsigned char ReleaseRate;
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90 ///////////////////////////////////////////////////////////
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92 // MAIN CHANNEL STRUCT
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95 int iSBPos; // mixing stuff
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100 unsigned char * pCurr; // current pos in sound mem
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101 unsigned char * pLoop; // loop ptr in sound mem
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103 unsigned int bReverb:1; // can we do reverb on this channel? must have ctrl register bit, to get active
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104 unsigned int bRVBActive:1; // reverb active flag
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105 unsigned int bNoise:1; // noise active flag
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106 unsigned int bFMod:2; // freq mod (0=off, 1=sound channel, 2=freq channel)
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107 unsigned int prevflags:3; // flags from previous block
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108 unsigned int bIgnoreLoop:1; // Ignore loop
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109 unsigned int bStarting:1; // starting after keyon
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112 int iLeftVolume; // left volume
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113 int iRightVolume; // right volume
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118 int iRawPitch; // raw pitch (0...3fff)
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121 ///////////////////////////////////////////////////////////
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125 int StartAddr; // reverb area start addr in samples
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126 int CurrAddr; // reverb area curr addr in samples
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131 int FB_SRC_A; // (offset)
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132 int FB_SRC_B; // (offset)
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133 int IIR_ALPHA; // (coef.)
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134 int ACC_COEF_A; // (coef.)
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135 int ACC_COEF_B; // (coef.)
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136 int ACC_COEF_C; // (coef.)
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137 int ACC_COEF_D; // (coef.)
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138 int IIR_COEF; // (coef.)
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139 int FB_ALPHA; // (coef.)
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140 int FB_X; // (coef.)
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141 int IIR_DEST_A0; // (offset)
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142 int IIR_DEST_A1; // (offset)
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143 int ACC_SRC_A0; // (offset)
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144 int ACC_SRC_A1; // (offset)
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145 int ACC_SRC_B0; // (offset)
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146 int ACC_SRC_B1; // (offset)
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147 int IIR_SRC_A0; // (offset)
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148 int IIR_SRC_A1; // (offset)
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149 int IIR_DEST_B0; // (offset)
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150 int IIR_DEST_B1; // (offset)
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151 int ACC_SRC_C0; // (offset)
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152 int ACC_SRC_C1; // (offset)
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153 int ACC_SRC_D0; // (offset)
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154 int ACC_SRC_D1; // (offset)
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155 int IIR_SRC_B1; // (offset)
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156 int IIR_SRC_B0; // (offset)
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157 int MIX_DEST_A0; // (offset)
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158 int MIX_DEST_A1; // (offset)
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159 int MIX_DEST_B0; // (offset)
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160 int MIX_DEST_B1; // (offset)
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161 int IN_COEF_L; // (coef.)
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162 int IN_COEF_R; // (coef.)
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164 int dirty; // registers changed
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166 // MIX_DEST_xx - FB_SRC_x
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167 int FB_SRC_A0, FB_SRC_A1, FB_SRC_B0, FB_SRC_B1;
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170 ///////////////////////////////////////////////////////////
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172 // psx buffers / addresses
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176 int SB[28 + 4 + 4];
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184 int simple[5]; // 28-32
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192 unsigned short spuCtrl;
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193 unsigned short spuStat;
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195 unsigned int spuAddr;
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197 unsigned int cycles_played;
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198 unsigned int cycles_dma_end;
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200 int decode_dirty_ch;
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201 unsigned int bSpuInit:1;
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202 unsigned int bSPUIsOpen:1;
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203 unsigned int bMemDirty:1; // had external write to SPU RAM
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205 unsigned int dwNoiseVal; // global noise generator
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206 unsigned int dwNoiseCount;
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207 unsigned int dwNewChannel; // flags for faster testing, if new channel starts
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208 unsigned int dwChannelsAudible; // not silent channels
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209 unsigned int dwChannelDead; // silent+not useful channels
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211 unsigned int XARepeat;
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212 unsigned int XALastVal;
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217 struct { // channel volume in the cd controller
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218 unsigned char ll, lr, rl, rr; // see cdr.Attenuator* in cdrom.c
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219 } cdv; // applied on spu side for easier emulation
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221 unsigned int last_keyon_cycles;
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224 unsigned char *spuMemC;
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225 unsigned short *spuMem;
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227 unsigned char * pSpuIrq;
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229 unsigned char * pSpuBuffer;
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237 void (CALLBACK *irqCallback)(int);
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238 //void (CALLBACK *cddavCallback)(short, short);
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239 void (CALLBACK *scheduleCallback)(unsigned int);
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241 const xa_decode_t * xapGlobal;
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242 unsigned int * XAFeed;
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243 unsigned int * XAPlay;
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244 unsigned int * XAStart;
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245 unsigned int * XAEnd;
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247 unsigned int * CDDAFeed;
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248 unsigned int * CDDAPlay;
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249 unsigned int * CDDAStart;
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250 unsigned int * CDDAEnd;
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252 unsigned short regArea[0x400];
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254 sample_buf sb[MAXCHAN];
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256 sample_buf sb_thread[MAXCHAN];
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259 #define regAreaGet(offset) \
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260 spu.regArea[((offset) - 0xc00)>>1]
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261 #define regAreaGetCh(ch, offset) \
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262 spu.regArea[((ch<<4)|(offset))>>1]
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264 ///////////////////////////////////////////////////////////
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266 ///////////////////////////////////////////////////////////
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270 extern SPUInfo spu;
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272 void do_samples(unsigned int cycles_to, int do_sync);
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273 void schedule_next_irq(void);
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274 void check_irq_io(unsigned int addr);
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275 void do_irq_io(int cycles_after);
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277 #define do_samples_if_needed(c, sync, samples) \
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279 if (sync || (int)((c) - spu.cycles_played) >= (samples) * 768) \
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280 do_samples(c, sync); \
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285 void FeedXA(const xa_decode_t *xap);
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286 void FeedCDDA(unsigned char *pcm, int nBytes);
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288 #endif /* __P_SOUND_EXTERNALS_H__ */
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