copyright : (C) 2002 by Pete Bernert
email : BlackDove@addcom.de
- Portions (C) Gražvydas "notaz" Ignotas, 2010-2012
+ Portions (C) Gražvydas "notaz" Ignotas, 2010-2012,2014
***************************************************************************/
/***************************************************************************
* *
***************************************************************************/
+#ifndef _WIN32
+#include <sys/time.h> // gettimeofday in xa.c
+#endif
#include "stdafx.h"
#define _IN_SPU
#include "registers.h"
#include "out.h"
#include "arm_features.h"
-
-#ifdef ENABLE_NLS
-#include <libintl.h>
-#include <locale.h>
-#define _(x) gettext(x)
-#define N_(x) (x)
-#else
-#define _(x) (x)
-#define N_(x) (x)
-#endif
+#include "spu_config.h"
#ifdef __ARM_ARCH_7A__
#define ssat32_to_16(v) \
// globals
-// psx buffer / addresses
-
-unsigned short regArea[10000];
-unsigned short spuMem[256*1024];
-unsigned char * spuMemC;
-unsigned char * pSpuIrq=0;
-unsigned char * pSpuBuffer;
-
-// user settings
-
-int iVolume=768; // 1024 is 1.0
-int iXAPitch=1;
-int iUseReverb=2;
-int iUseInterpolation=2;
+SPUInfo spu;
+SPUConfig spu_config;
// MAIN infos struct for each channel
SPUCHAN s_chan[MAXCHAN+1]; // channel + 1 infos (1 is security for fmod handling)
REVERBInfo rvb;
-unsigned int dwNoiseVal; // global noise generator
-unsigned int dwNoiseCount;
-
-unsigned short spuCtrl=0; // some vars to store psx reg infos
-unsigned short spuStat=0;
-unsigned short spuIrq=0;
-unsigned long spuAddr=0xffffffff; // address into spu mem
-int bSpuInit=0;
-int bSPUIsOpen=0;
-
-unsigned int dwNewChannel=0; // flags for faster testing, if new channel starts
-unsigned int dwChannelOn=0; // not silent channels
-unsigned int dwPendingChanOff=0;
-unsigned int dwChannelDead=0; // silent+not useful channels
-
-void (CALLBACK *irqCallback)(void)=0; // func of main emu, called on spu irq
-void (CALLBACK *cddavCallback)(unsigned short,unsigned short)=0;
-void (CALLBACK *scheduleCallback)(unsigned int)=0;
-
// certain globals (were local before, but with the new timeproc I need em global)
static const int f[8][2] = { { 0, 0 },
{ 115, -52 },
{ 98, -55 },
{ 122, -60 } };
-int ChanBuf[NSSIZE+3];
-int SSumLR[(NSSIZE+3)*2];
+int ChanBuf[NSSIZE];
+int SSumLR[NSSIZE*2];
int iFMod[NSSIZE];
-short * pS;
-
-static int decode_dirty_ch;
-int decode_pos;
-unsigned int cycles_played;
#define CDDA_BUFFER_SIZE (16384 * sizeof(uint32_t)) // must be power of 2
// /
//
-
-INLINE void InterpolateUp(int ch)
+static void InterpolateUp(int *SB, int sinc)
{
- if(s_chan[ch].SB[32]==1) // flag == 1? calc step and set flag... and don't change the value in this pass
+ if(SB[32]==1) // flag == 1? calc step and set flag... and don't change the value in this pass
{
- const int id1=s_chan[ch].SB[30]-s_chan[ch].SB[29]; // curr delta to next val
- const int id2=s_chan[ch].SB[31]-s_chan[ch].SB[30]; // and next delta to next-next val :)
+ const int id1=SB[30]-SB[29]; // curr delta to next val
+ const int id2=SB[31]-SB[30]; // and next delta to next-next val :)
- s_chan[ch].SB[32]=0;
+ SB[32]=0;
if(id1>0) // curr delta positive
{
if(id2<id1)
- {s_chan[ch].SB[28]=id1;s_chan[ch].SB[32]=2;}
+ {SB[28]=id1;SB[32]=2;}
else
if(id2<(id1<<1))
- s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x10000L;
+ SB[28]=(id1*sinc)>>16;
else
- s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x20000L;
+ SB[28]=(id1*sinc)>>17;
}
else // curr delta negative
{
if(id2>id1)
- {s_chan[ch].SB[28]=id1;s_chan[ch].SB[32]=2;}
+ {SB[28]=id1;SB[32]=2;}
else
if(id2>(id1<<1))
- s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x10000L;
+ SB[28]=(id1*sinc)>>16;
else
- s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x20000L;
+ SB[28]=(id1*sinc)>>17;
}
}
else
- if(s_chan[ch].SB[32]==2) // flag 1: calc step and set flag... and don't change the value in this pass
+ if(SB[32]==2) // flag 1: calc step and set flag... and don't change the value in this pass
{
- s_chan[ch].SB[32]=0;
+ SB[32]=0;
- s_chan[ch].SB[28]=(s_chan[ch].SB[28]*s_chan[ch].sinc)/0x20000L;
- //if(s_chan[ch].sinc<=0x8000)
- // s_chan[ch].SB[29]=s_chan[ch].SB[30]-(s_chan[ch].SB[28]*((0x10000/s_chan[ch].sinc)-1));
+ SB[28]=(SB[28]*sinc)>>17;
+ //if(sinc<=0x8000)
+ // SB[29]=SB[30]-(SB[28]*((0x10000/sinc)-1));
//else
- s_chan[ch].SB[29]+=s_chan[ch].SB[28];
+ SB[29]+=SB[28];
}
else // no flags? add bigger val (if possible), calc smaller step, set flag1
- s_chan[ch].SB[29]+=s_chan[ch].SB[28];
+ SB[29]+=SB[28];
}
//
// even easier interpolation on downsampling, also no special filter, again just "Pete's common sense" tm
//
-INLINE void InterpolateDown(int ch)
+static void InterpolateDown(int *SB, int sinc)
{
- if(s_chan[ch].sinc>=0x20000L) // we would skip at least one val?
+ if(sinc>=0x20000L) // we would skip at least one val?
{
- s_chan[ch].SB[29]+=(s_chan[ch].SB[30]-s_chan[ch].SB[29])/2; // add easy weight
- if(s_chan[ch].sinc>=0x30000L) // we would skip even more vals?
- s_chan[ch].SB[29]+=(s_chan[ch].SB[31]-s_chan[ch].SB[30])/2;// add additional next weight
+ SB[29]+=(SB[30]-SB[29])/2; // add easy weight
+ if(sinc>=0x30000L) // we would skip even more vals?
+ SB[29]+=(SB[31]-SB[30])/2; // add additional next weight
}
}
////////////////////////////////////////////////////////////////////////
// helpers for gauss interpolation
-#define gval0 (((short*)(&s_chan[ch].SB[29]))[gpos])
-#define gval(x) ((int)((short*)(&s_chan[ch].SB[29]))[(gpos+x)&3])
+#define gval0 (((short*)(&SB[29]))[gpos&3])
+#define gval(x) ((int)((short*)(&SB[29]))[(gpos+x)&3])
#include "gauss_i.h"
static void do_irq(void)
{
- //if(!(spuStat & STAT_IRQ))
+ //if(!(spu.spuStat & STAT_IRQ))
{
- spuStat |= STAT_IRQ; // asserted status?
- if(irqCallback) irqCallback();
+ spu.spuStat |= STAT_IRQ; // asserted status?
+ if(spu.irqCallback) spu.irqCallback();
}
}
static int check_irq(int ch, unsigned char *pos)
{
- if((spuCtrl & CTRL_IRQ) && pos == pSpuIrq)
+ if((spu.spuCtrl & CTRL_IRQ) && pos == spu.pSpuIrq)
{
- //printf("ch%d irq %04x\n", ch, pos - spuMemC);
+ //printf("ch%d irq %04x\n", ch, pos - spu.spuMemC);
do_irq();
return 1;
}
StartADSR(ch);
StartREVERB(ch);
- // fussy timing issues - do in VoiceOn
- //s_chan[ch].pCurr=s_chan[ch].pStart; // set sample start
- //s_chan[ch].bStop=0;
- //s_chan[ch].bOn=1;
+ s_chan[ch].prevflags=2;
s_chan[ch].SB[26]=0; // init mixing vars
s_chan[ch].SB[27]=0;
- s_chan[ch].iSBPos=28;
+ s_chan[ch].iSBPos=27;
+ s_chan[ch].SB[28]=0;
s_chan[ch].SB[29]=0; // init our interpolation helpers
s_chan[ch].SB[30]=0;
+ s_chan[ch].SB[31]=0;
+ s_chan[ch].spos=0;
- if(iUseInterpolation>=2) // gauss interpolation?
- {s_chan[ch].spos=0x30000L;s_chan[ch].SB[28]=0;} // -> start with more decoding
- else {s_chan[ch].spos=0x10000L;s_chan[ch].SB[31]=0;} // -> no/simple interpolation starts with one 44100 decoding
-
- dwNewChannel&=~(1<<ch); // clear new channel bit
+ spu.dwNewChannel&=~(1<<ch); // clear new channel bit
+ spu.dwChannelOn|=1<<ch;
+ spu.dwChannelDead&=~(1<<ch);
}
////////////////////////////////////////////////////////////////////////
// ALL KIND OF HELPERS
////////////////////////////////////////////////////////////////////////
-INLINE int FModChangeFrequency(int ch,int ns)
+INLINE int FModChangeFrequency(int *SB, int pitch, int ns)
{
- unsigned int NP=s_chan[ch].iRawPitch;
+ unsigned int NP=pitch;
int sinc;
- NP=((32768L+iFMod[ns])*NP)/32768L;
+ NP=((32768L+iFMod[ns])*NP)>>15;
if(NP>0x3fff) NP=0x3fff;
if(NP<0x1) NP=0x1;
sinc=NP<<4; // calc frequency
- if(iUseInterpolation==1) // freq change in simple interpolation mode
- s_chan[ch].SB[32]=1;
+ if(spu_config.iUseInterpolation==1) // freq change in simple interpolation mode
+ SB[32]=1;
iFMod[ns]=0;
return sinc;
////////////////////////////////////////////////////////////////////////
-INLINE void StoreInterpolationVal(int ch,int fa)
+INLINE void StoreInterpolationVal(int *SB, int sinc, int fa, int fmod_freq)
{
- if(s_chan[ch].bFMod==2) // fmod freq channel
- s_chan[ch].SB[29]=fa;
+ if(fmod_freq) // fmod freq channel
+ SB[29]=fa;
else
{
ssat32_to_16(fa);
- if(iUseInterpolation>=2) // gauss/cubic interpolation
- {
- int gpos = s_chan[ch].SB[28];
- gval0 = fa;
+ if(spu_config.iUseInterpolation>=2) // gauss/cubic interpolation
+ {
+ int gpos = SB[28];
+ gval0 = fa;
gpos = (gpos+1) & 3;
- s_chan[ch].SB[28] = gpos;
+ SB[28] = gpos;
}
else
- if(iUseInterpolation==1) // simple interpolation
+ if(spu_config.iUseInterpolation==1) // simple interpolation
{
- s_chan[ch].SB[28] = 0;
- s_chan[ch].SB[29] = s_chan[ch].SB[30]; // -> helpers for simple linear interpolation: delay real val for two slots, and calc the two deltas, for a 'look at the future behaviour'
- s_chan[ch].SB[30] = s_chan[ch].SB[31];
- s_chan[ch].SB[31] = fa;
- s_chan[ch].SB[32] = 1; // -> flag: calc new interolation
+ SB[28] = 0;
+ SB[29] = SB[30]; // -> helpers for simple linear interpolation: delay real val for two slots, and calc the two deltas, for a 'look at the future behaviour'
+ SB[30] = SB[31];
+ SB[31] = fa;
+ SB[32] = 1; // -> flag: calc new interolation
}
- else s_chan[ch].SB[29]=fa; // no interpolation
+ else SB[29]=fa; // no interpolation
}
}
////////////////////////////////////////////////////////////////////////
-INLINE int iGetInterpolationVal(int ch, int spos)
+INLINE int iGetInterpolationVal(int *SB, int sinc, int spos, int fmod_freq)
{
int fa;
- if(s_chan[ch].bFMod==2) return s_chan[ch].SB[29];
+ if(fmod_freq) return SB[29];
- switch(iUseInterpolation)
- {
+ switch(spu_config.iUseInterpolation)
+ {
//--------------------------------------------------//
case 3: // cubic interpolation
{
long xd;int gpos;
xd = (spos >> 1)+1;
- gpos = s_chan[ch].SB[28];
+ gpos = SB[28];
fa = gval(3) - 3*gval(2) + 3*gval(1) - gval0;
fa *= (xd - (2<<15)) / 6;
{
int vl, vr;int gpos;
vl = (spos >> 6) & ~3;
- gpos = s_chan[ch].SB[28];
+ gpos = SB[28];
vr=(gauss[vl]*(int)gval0)&~2047;
vr+=(gauss[vl+1]*gval(1))&~2047;
vr+=(gauss[vl+2]*gval(2))&~2047;
//--------------------------------------------------//
case 1: // simple interpolation
{
- if(s_chan[ch].sinc<0x10000L) // -> upsampling?
- InterpolateUp(ch); // --> interpolate up
- else InterpolateDown(ch); // --> else down
- fa=s_chan[ch].SB[29];
+ if(sinc<0x10000L) // -> upsampling?
+ InterpolateUp(SB, sinc); // --> interpolate up
+ else InterpolateDown(SB, sinc); // --> else down
+ fa=SB[29];
} break;
//--------------------------------------------------//
default: // no interpolation
{
- fa=s_chan[ch].SB[29];
+ fa=SB[29];
} break;
//--------------------------------------------------//
}
}
}
-static int decode_block(int ch)
+static int decode_block(int ch, int *SB)
{
unsigned char *start;
- int predict_nr,shift_factor,flags;
- int stop = 0;
+ int predict_nr, shift_factor, flags;
int ret = 0;
start = s_chan[ch].pCurr; // set up the current pos
- if(start == spuMemC) // ?
- stop = 1;
+ if (start == spu.spuMemC) // ?
+ ret = 1;
- if(s_chan[ch].prevflags&1) // 1: stop/loop
+ if (s_chan[ch].prevflags & 1) // 1: stop/loop
{
- if(!(s_chan[ch].prevflags&2))
- stop = 1;
+ if (!(s_chan[ch].prevflags & 2))
+ ret = 1;
start = s_chan[ch].pLoop;
}
else
- ret = check_irq(ch, start); // hack, see check_irq below..
-
- if(stop)
- {
- dwChannelOn &= ~(1<<ch); // -> turn everything off
- s_chan[ch].bStop = 1;
- s_chan[ch].ADSRX.EnvelopeVol = 0;
- }
+ check_irq(ch, start); // hack, see check_irq below..
- predict_nr=(int)start[0];
- shift_factor=predict_nr&0xf;
+ predict_nr = (int)start[0];
+ shift_factor = predict_nr & 0xf;
predict_nr >>= 4;
- decode_block_data(s_chan[ch].SB, start + 2, predict_nr, shift_factor);
+ decode_block_data(SB, start + 2, predict_nr, shift_factor);
- flags=(int)start[1];
- if(flags&4)
- s_chan[ch].pLoop=start; // loop adress
+ flags = start[1];
+ if (flags & 4)
+ s_chan[ch].pLoop = start; // loop adress
- start+=16;
+ start += 16;
- if(flags&1) { // 1: stop/loop
+ if (flags & 1) { // 1: stop/loop
start = s_chan[ch].pLoop;
- ret |= check_irq(ch, start); // hack.. :(
+ check_irq(ch, start); // hack.. :(
}
- if (start - spuMemC >= 0x80000)
- start = spuMemC;
+ if (start - spu.spuMemC >= 0x80000)
+ start = spu.spuMemC;
s_chan[ch].pCurr = start; // store values for next cycle
s_chan[ch].prevflags = flags;
static int skip_block(int ch)
{
unsigned char *start = s_chan[ch].pCurr;
- int flags = start[1];
- int ret = check_irq(ch, start);
+ int flags;
+ int ret = 0;
+
+ if (s_chan[ch].prevflags & 1) {
+ if (!(s_chan[ch].prevflags & 2))
+ ret = 1;
- if(s_chan[ch].prevflags & 1)
start = s_chan[ch].pLoop;
+ }
+ else
+ check_irq(ch, start);
- if(flags & 4)
+ flags = start[1];
+ if (flags & 4)
s_chan[ch].pLoop = start;
start += 16;
- if(flags & 1)
+ if (flags & 1) {
start = s_chan[ch].pLoop;
+ check_irq(ch, start);
+ }
s_chan[ch].pCurr = start;
s_chan[ch].prevflags = flags;
pos += (28 - s_chan[ch].iSBPos) << 16;
while (pos < end)
{
- if (block == pSpuIrq)
+ if (block == spu.pSpuIrq)
break;
flags = block[1];
block += 16;
if (flags & 1) { // 1: stop/loop
block = s_chan[ch].pLoop;
- if (block == pSpuIrq) // hack.. (see decode_block)
+ if (block == spu.pSpuIrq) // hack.. (see decode_block)
break;
}
pos += 28 << 16;
}
#define make_do_samples(name, fmod_code, interp_start, interp1_code, interp2_code, interp_end) \
-static noinline int do_samples_##name(int ch, int ns, int ns_to) \
+static noinline int do_samples_##name(int ch, int ns_to) \
{ \
int sinc = s_chan[ch].sinc; \
int spos = s_chan[ch].spos; \
int sbpos = s_chan[ch].iSBPos; \
int *SB = s_chan[ch].SB; \
- int ret = -1; \
- int d, fa; \
+ int ns, d, fa; \
+ int ret = ns_to; \
interp_start; \
\
- for (; ns < ns_to; ns++) \
+ for (ns = 0; ns < ns_to; ns++) \
{ \
fmod_code; \
\
while (spos >= 0x10000) \
{ \
fa = SB[sbpos++]; \
- if(sbpos >= 28) \
+ if (sbpos >= 28) \
{ \
sbpos = 0; \
- d = decode_block(ch); \
- if(d) \
- ret = /*ns_to =*/ ns + 1; \
+ d = decode_block(ch, SB); \
+ if (d && ns < ret) \
+ ret = ns; \
} \
\
interp1_code; \
#define fmod_recv_check \
if(s_chan[ch].bFMod==1 && iFMod[ns]) \
- sinc = FModChangeFrequency(ch,ns)
+ sinc = FModChangeFrequency(SB, s_chan[ch].iRawPitch, ns)
make_do_samples(default, fmod_recv_check, ,
- StoreInterpolationVal(ch, fa),
- ChanBuf[ns] = iGetInterpolationVal(ch, spos), )
-make_do_samples(noint, , fa = s_chan[ch].SB[29], , ChanBuf[ns] = fa, s_chan[ch].SB[29] = fa)
+ StoreInterpolationVal(SB, sinc, fa, s_chan[ch].bFMod==2),
+ ChanBuf[ns] = iGetInterpolationVal(SB, sinc, spos, s_chan[ch].bFMod==2), )
+make_do_samples(noint, , fa = SB[29], , ChanBuf[ns] = fa, SB[29] = fa)
#define simple_interp_store \
- s_chan[ch].SB[28] = 0; \
- s_chan[ch].SB[29] = s_chan[ch].SB[30]; \
- s_chan[ch].SB[30] = s_chan[ch].SB[31]; \
- s_chan[ch].SB[31] = fa; \
- s_chan[ch].SB[32] = 1
+ SB[28] = 0; \
+ SB[29] = SB[30]; \
+ SB[30] = SB[31]; \
+ SB[31] = fa; \
+ SB[32] = 1
#define simple_interp_get \
- if(sinc<0x10000) /* -> upsampling? */ \
- InterpolateUp(ch); /* --> interpolate up */ \
- else InterpolateDown(ch); /* --> else down */ \
- ChanBuf[ns] = s_chan[ch].SB[29]
+ if(sinc<0x10000) /* -> upsampling? */ \
+ InterpolateUp(SB, sinc); /* --> interpolate up */ \
+ else InterpolateDown(SB, sinc); /* --> else down */ \
+ ChanBuf[ns] = SB[29]
make_do_samples(simple, , ,
simple_interp_store, simple_interp_get, )
-static noinline int do_samples_noise(int ch, int ns, int ns_to)
+static int do_samples_skip(int ch, int ns_to)
{
- int level, shift, bit;
- int ret = -1, d;
+ int ret = ns_to, ns, d;
+
+ s_chan[ch].spos += s_chan[ch].iSBPos << 16;
- s_chan[ch].spos += s_chan[ch].sinc * (ns_to - ns);
- while (s_chan[ch].spos >= 28*0x10000)
+ for (ns = 0; ns < ns_to; ns++)
{
- d = skip_block(ch);
- if (d)
- ret = ns_to;
- s_chan[ch].spos -= 28*0x10000;
+ s_chan[ch].spos += s_chan[ch].sinc;
+ while (s_chan[ch].spos >= 28*0x10000)
+ {
+ d = skip_block(ch);
+ if (d && ns < ret)
+ ret = ns;
+ s_chan[ch].spos -= 28*0x10000;
+ }
}
+ s_chan[ch].iSBPos = s_chan[ch].spos >> 16;
+ s_chan[ch].spos &= 0xffff;
+
+ return ret;
+}
+
+static void do_lsfr_samples(int ns_to, int ctrl,
+ unsigned int *dwNoiseCount, unsigned int *dwNoiseVal)
+{
+ unsigned int counter = *dwNoiseCount;
+ unsigned int val = *dwNoiseVal;
+ unsigned int level, shift, bit;
+ int ns;
+
// modified from DrHell/shalma, no fraction
- level = (spuCtrl >> 10) & 0x0f;
+ level = (ctrl >> 10) & 0x0f;
level = 0x8000 >> level;
- for (; ns < ns_to; ns++)
+ for (ns = 0; ns < ns_to; ns++)
{
- dwNoiseCount += 2;
- if (dwNoiseCount >= level)
+ counter += 2;
+ if (counter >= level)
{
- dwNoiseCount -= level;
- shift = (dwNoiseVal >> 10) & 0x1f;
+ counter -= level;
+ shift = (val >> 10) & 0x1f;
bit = (0x69696969 >> shift) & 1;
- if (dwNoiseVal & 0x8000)
- bit ^= 1;
- dwNoiseVal = (dwNoiseVal << 1) | bit;
+ bit ^= (val >> 15) & 1;
+ val = (val << 1) | bit;
}
- ChanBuf[ns] = (signed short)dwNoiseVal;
+ ChanBuf[ns] = (signed short)val;
}
+ *dwNoiseCount = counter;
+ *dwNoiseVal = val;
+}
+
+static int do_samples_noise(int ch, int ns_to)
+{
+ int ret;
+
+ ret = do_samples_skip(ch, ns_to);
+
+ do_lsfr_samples(ns_to, spu.spuCtrl, &spu.dwNoiseCount, &spu.dwNoiseVal);
+
return ret;
}
#ifdef HAVE_ARMV5
// asm code; lv and rv must be 0-3fff
extern void mix_chan(int start, int count, int lv, int rv);
-extern void mix_chan_rvb(int start, int count, int lv, int rv);
+extern void mix_chan_rvb(int start, int count, int lv, int rv, int *rvb);
#else
static void mix_chan(int start, int count, int lv, int rv)
{
}
}
-static void mix_chan_rvb(int start, int count, int lv, int rv)
+static void mix_chan_rvb(int start, int count, int lv, int rv, int *rvb)
{
int *dst = SSumLR + start * 2;
- int *drvb = sRVBStart + start * 2;
+ int *drvb = rvb + start * 2;
const int *src = ChanBuf + start;
int l, r;
// 0x0800-0x0bff Voice 1
// 0x0c00-0x0fff Voice 3
-static noinline void do_decode_bufs(int which, int start, int count)
+static noinline void do_decode_bufs(unsigned short *mem, int which,
+ int count, int decode_pos)
{
- const int *src = ChanBuf + start;
- unsigned short *dst = &spuMem[0x800/2 + which*0x400/2];
- int cursor = decode_pos + start;
+ unsigned short *dst = &mem[0x800/2 + which*0x400/2];
+ const int *src = ChanBuf;
+ int cursor = decode_pos;
while (count-- > 0)
{
// decode_pos is updated and irqs are checked later, after voice loop
}
+static void do_silent_chans(int ns_to, int silentch)
+{
+ int ch;
+
+ for (ch = 0; ch < MAXCHAN; ch++)
+ {
+ if (!(silentch & (1<<ch))) continue; // already handled
+ if (spu.dwChannelDead & (1<<ch)) continue;
+ if (s_chan[ch].pCurr > spu.pSpuIrq && s_chan[ch].pLoop > spu.pSpuIrq)
+ continue;
+
+ s_chan[ch].spos += s_chan[ch].iSBPos << 16;
+ s_chan[ch].iSBPos = 0;
+
+ s_chan[ch].spos += s_chan[ch].sinc * ns_to;
+ while (s_chan[ch].spos >= 28 * 0x10000)
+ {
+ unsigned char *start = s_chan[ch].pCurr;
+
+ skip_block(ch);
+ if (start == s_chan[ch].pCurr || start - spu.spuMemC < 0x1000)
+ {
+ // looping on self or stopped(?)
+ spu.dwChannelDead |= 1<<ch;
+ s_chan[ch].spos = 0;
+ break;
+ }
+
+ s_chan[ch].spos -= 28 * 0x10000;
+ }
+ }
+}
+
+static void do_channels(int ns_to)
+{
+ unsigned int mask;
+ int ch, d;
+
+ InitREVERB(ns_to);
+
+ mask = spu.dwChannelOn & 0xffffff;
+ for (ch = 0; mask != 0; ch++, mask >>= 1) // loop em all...
+ {
+ if (!(mask & 1)) continue; // channel not playing? next
+
+ if (s_chan[ch].bNoise)
+ d = do_samples_noise(ch, ns_to);
+ else if (s_chan[ch].bFMod == 2
+ || (s_chan[ch].bFMod == 0 && spu_config.iUseInterpolation == 0))
+ d = do_samples_noint(ch, ns_to);
+ else if (s_chan[ch].bFMod == 0 && spu_config.iUseInterpolation == 1)
+ d = do_samples_simple(ch, ns_to);
+ else
+ d = do_samples_default(ch, ns_to);
+
+ d = MixADSR(&s_chan[ch].ADSRX, d);
+ if (d < ns_to) {
+ spu.dwChannelOn &= ~(1 << ch);
+ s_chan[ch].ADSRX.EnvelopeVol = 0;
+ memset(&ChanBuf[d], 0, (ns_to - d) * sizeof(ChanBuf[0]));
+ }
+
+ if (ch == 1 || ch == 3)
+ {
+ do_decode_bufs(spu.spuMem, ch/2, ns_to, spu.decode_pos);
+ spu.decode_dirty_ch |= 1 << ch;
+ }
+
+ if (s_chan[ch].bFMod == 2) // fmod freq channel
+ memcpy(iFMod, &ChanBuf, ns_to * sizeof(iFMod[0]));
+ if (s_chan[ch].bRVBActive)
+ mix_chan_rvb(0, ns_to, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume, spu.sRVBStart);
+ else
+ mix_chan(0, ns_to, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume);
+ }
+}
+
////////////////////////////////////////////////////////////////////////
// MAIN SPU FUNCTION
// here is the main job handler...
-// basically the whole sound processing is done in this fat func!
////////////////////////////////////////////////////////////////////////
+void do_samples_finish(int ns_to, int silentch);
+
void do_samples(unsigned int cycles_to)
{
- const int ns_from = 0;
- int ns,ns_to,ns_len;
- int volmult = iVolume;
- int ch,d,silentch;
+ unsigned int mask;
+ int ch, ns_to;
+ int silentch;
int cycle_diff;
- cycle_diff = cycles_to - cycles_played;
+ cycle_diff = cycles_to - spu.cycles_played;
if (cycle_diff < -2*1048576 || cycle_diff > 2*1048576)
{
//xprintf("desync %u %d\n", cycles_to, cycle_diff);
- cycles_played = cycles_to;
+ spu.cycles_played = cycles_to;
return;
}
// (or 0x400 offsets of this pointer) hits the spuirq address, we generate
// an IRQ.
- if (unlikely((spuCtrl & CTRL_IRQ) && pSpuIrq && pSpuIrq < spuMemC+0x1000))
+ if (unlikely((spu.spuCtrl & CTRL_IRQ)
+ && spu.pSpuIrq < spu.spuMemC+0x1000))
{
- int irq_pos = (pSpuIrq - spuMemC) / 2 & 0x1ff;
- int left = (irq_pos - decode_pos) & 0x1ff;
+ int irq_pos = (spu.pSpuIrq - spu.spuMemC) / 2 & 0x1ff;
+ int left = (irq_pos - spu.decode_pos) & 0x1ff;
if (0 < left && left <= ns_to)
{
- //xprintf("decoder irq %x\n", decode_pos);
+ //xprintf("decoder irq %x\n", spu.decode_pos);
do_irq();
- ns_to = left;
}
}
- InitREVERB(ns_to);
+ silentch = ~(spu.dwChannelOn|spu.dwNewChannel);
- {
- silentch=~(dwChannelOn|dwNewChannel);
+ mask = spu.dwNewChannel & 0xffffff;
+ for (ch = 0; mask != 0; ch++, mask >>= 1) {
+ if (mask & 1)
+ StartSound(ch);
+ }
- //--------------------------------------------------//
- //- main channel loop -//
- //--------------------------------------------------//
- {
- for(ch=0;ch<MAXCHAN;ch++) // loop em all...
- {
- if(dwNewChannel&(1<<ch)) StartSound(ch); // start new sound
- if(!(dwChannelOn&(1<<ch))) continue; // channel not playing? next
-
- if(s_chan[ch].bNoise)
- do_samples_noise(ch, ns_from, ns_to);
- else if(s_chan[ch].bFMod==2 || (s_chan[ch].bFMod==0 && iUseInterpolation==0))
- do_samples_noint(ch, ns_from, ns_to);
- else if(s_chan[ch].bFMod==0 && iUseInterpolation==1)
- do_samples_simple(ch, ns_from, ns_to);
- else
- do_samples_default(ch, ns_from, ns_to);
-
- ns_len = ns_to - ns_from;
-
- MixADSR(ch, ns_from, ns_to);
-
- if(ch==1 || ch==3)
- {
- do_decode_bufs(ch/2, ns_from, ns_len);
- decode_dirty_ch |= 1<<ch;
- }
-
- if(s_chan[ch].bFMod==2) // fmod freq channel
- memcpy(&iFMod[ns_from], &ChanBuf[ns_from], ns_len * sizeof(iFMod[0]));
- if(s_chan[ch].bRVBActive)
- mix_chan_rvb(ns_from, ns_len, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume);
- else
- mix_chan(ns_from, ns_len, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume);
- }
- }
+ if (spu.dwChannelOn == 0)
+ InitREVERB(ns_to);
+ else {
+ do_channels(ns_to);
+ }
- // advance "stopped" channels that can cause irqs
- // (all chans are always playing on the real thing..)
- if(spuCtrl&CTRL_IRQ)
- for(ch=0;ch<MAXCHAN;ch++)
- {
- if(!(silentch&(1<<ch))) continue; // already handled
- if(dwChannelDead&(1<<ch)) continue;
- if(s_chan[ch].pCurr > pSpuIrq && s_chan[ch].pLoop > pSpuIrq)
- continue;
-
- s_chan[ch].spos += s_chan[ch].sinc * (ns_to - ns_from);
- while(s_chan[ch].spos >= 28 * 0x10000)
- {
- unsigned char *start = s_chan[ch].pCurr;
-
- skip_block(ch);
- if(start == s_chan[ch].pCurr || start - spuMemC < 0x1000)
- {
- // looping on self or stopped(?)
- dwChannelDead |= 1<<ch;
- s_chan[ch].spos = 0;
- break;
- }
-
- s_chan[ch].spos -= 28 * 0x10000;
- }
- }
+ do_samples_finish(ns_to, silentch);
- if(unlikely(silentch & decode_dirty_ch & (1<<1))) // must clear silent channel decode buffers
+ // advance "stopped" channels that can cause irqs
+ // (all chans are always playing on the real thing..)
+ if (spu.spuCtrl & CTRL_IRQ)
+ do_silent_chans(ns_to, silentch);
+
+ spu.cycles_played += ns_to * 768;
+ spu.decode_pos = (spu.decode_pos + ns_to) & 0x1ff;
+}
+
+void do_samples_finish(int ns_to, int silentch)
+{
+ int volmult = spu_config.iVolume;
+ int ns;
+ int d;
+
+ if(unlikely(silentch & spu.decode_dirty_ch & (1<<1))) // must clear silent channel decode buffers
{
- memset(&spuMem[0x800/2], 0, 0x400);
- decode_dirty_ch &= ~(1<<1);
+ memset(&spu.spuMem[0x800/2], 0, 0x400);
+ spu.decode_dirty_ch &= ~(1<<1);
}
- if(unlikely(silentch & decode_dirty_ch & (1<<3)))
+ if(unlikely(silentch & spu.decode_dirty_ch & (1<<3)))
{
- memset(&spuMem[0xc00/2], 0, 0x400);
- decode_dirty_ch &= ~(1<<3);
+ memset(&spu.spuMem[0xc00/2], 0, 0x400);
+ spu.decode_dirty_ch &= ~(1<<3);
}
- //---------------------------------------------------//
- //- here we have another 1 ms of sound data
//---------------------------------------------------//
// mix XA infos (if any)
- MixXA(ns_to);
+ MixXA(ns_to, spu.decode_pos);
///////////////////////////////////////////////////////
// mix all channels (including reverb) into one buffer
- if(iUseReverb)
+ if(spu_config.iUseReverb)
REVERBDo(ns_to);
- if((spuCtrl&0x4000)==0) // muted? (rare, don't optimize for this)
+ if((spu.spuCtrl&0x4000)==0) // muted? (rare, don't optimize for this)
{
- memset(pS, 0, ns_to * 2 * sizeof(pS[0]));
- pS += ns_to * 2;
+ memset(spu.pS, 0, ns_to * 2 * sizeof(spu.pS[0]));
+ spu.pS += ns_to * 2;
}
else
for (ns = 0; ns < ns_to * 2; )
d = SSumLR[ns]; SSumLR[ns] = 0;
d = d * volmult >> 10;
ssat32_to_16(d);
- *pS++ = d;
+ *spu.pS++ = d;
ns++;
d = SSumLR[ns]; SSumLR[ns] = 0;
d = d * volmult >> 10;
ssat32_to_16(d);
- *pS++ = d;
+ *spu.pS++ = d;
ns++;
}
-
- cycles_played += ns_to * 768;
-
- decode_pos = (decode_pos + ns_to) & 0x1ff;
- }
}
void schedule_next_irq(void)
unsigned int upd_samples;
int ch;
- if (scheduleCallback == NULL)
+ if (spu.scheduleCallback == NULL)
return;
upd_samples = 44100 / 50;
for (ch = 0; ch < MAXCHAN; ch++)
{
- if (dwChannelDead & (1 << ch))
+ if (spu.dwChannelDead & (1 << ch))
continue;
- if ((unsigned long)(pSpuIrq - s_chan[ch].pCurr) > IRQ_NEAR_BLOCKS * 16
- && (unsigned long)(pSpuIrq - s_chan[ch].pLoop) > IRQ_NEAR_BLOCKS * 16)
+ if ((unsigned long)(spu.pSpuIrq - s_chan[ch].pCurr) > IRQ_NEAR_BLOCKS * 16
+ && (unsigned long)(spu.pSpuIrq - s_chan[ch].pLoop) > IRQ_NEAR_BLOCKS * 16)
continue;
scan_for_irq(ch, &upd_samples);
}
- if (unlikely(pSpuIrq < spuMemC + 0x1000))
+ if (unlikely(spu.pSpuIrq < spu.spuMemC + 0x1000))
{
- int irq_pos = (pSpuIrq - spuMemC) / 2 & 0x1ff;
- int left = (irq_pos - decode_pos) & 0x1ff;
+ int irq_pos = (spu.pSpuIrq - spu.spuMemC) / 2 & 0x1ff;
+ int left = (irq_pos - spu.decode_pos) & 0x1ff;
if (0 < left && left < upd_samples) {
- //xprintf("decode: %3d (%3d/%3d)\n", left, decode_pos, irq_pos);
+ //xprintf("decode: %3d (%3d/%3d)\n", left, spu.decode_pos, irq_pos);
upd_samples = left;
}
}
if (upd_samples < 44100 / 50)
- scheduleCallback(upd_samples * 768);
+ spu.scheduleCallback(upd_samples * 768);
}
// SPU ASYNC... even newer epsxe func
{
do_samples(cycle);
- if (spuCtrl & CTRL_IRQ)
+ if (spu.spuCtrl & CTRL_IRQ)
schedule_next_irq();
if (flags & 1) {
- out_current->feed(pSpuBuffer, (unsigned char *)pS - pSpuBuffer);
- pS = (short *)pSpuBuffer;
+ out_current->feed(spu.pSpuBuffer, (unsigned char *)spu.pS - spu.pSpuBuffer);
+ spu.pS = (short *)spu.pSpuBuffer;
- if (0) {
+ if (spu_config.iTempo) {
if (!out_current->busy())
// cause more samples to be generated
// (and break some games because of bad sync)
- cycles_played -= 44100 / 60 / 2 * 768;
+ spu.cycles_played -= 44100 / 60 / 2 * 768;
}
}
}
{
memset(SSumLR,0,sizeof(SSumLR)); // init some mixing buffers
memset(iFMod,0,sizeof(iFMod));
- pS=(short *)pSpuBuffer; // setup soundbuffer pointer
+ spu.pS=(short *)spu.pSpuBuffer; // setup soundbuffer pointer
}
// SETUPSTREAMS: init most of the spu buffers
{
int i;
- pSpuBuffer=(unsigned char *)malloc(32768); // alloc mixing buffer
+ spu.pSpuBuffer = (unsigned char *)malloc(32768); // alloc mixing buffer
+ spu.sRVBStart = (int *)malloc(NSSIZE*2*4); // alloc reverb buffer
+ memset(spu.sRVBStart,0,NSSIZE*2*4);
- if(iUseReverb==1) i=88200*2;
- else i=NSSIZE*2;
-
- sRVBStart = (int *)malloc(i*4); // alloc reverb buffer
- memset(sRVBStart,0,i*4);
- sRVBEnd = sRVBStart + i;
- sRVBPlay = sRVBStart;
-
- XAStart = // alloc xa buffer
+ spu.XAStart = // alloc xa buffer
(uint32_t *)malloc(44100 * sizeof(uint32_t));
- XAEnd = XAStart + 44100;
- XAPlay = XAStart;
- XAFeed = XAStart;
+ spu.XAEnd = spu.XAStart + 44100;
+ spu.XAPlay = spu.XAStart;
+ spu.XAFeed = spu.XAStart;
- CDDAStart = // alloc cdda buffer
+ spu.CDDAStart = // alloc cdda buffer
(uint32_t *)malloc(CDDA_BUFFER_SIZE);
- CDDAEnd = CDDAStart + 16384;
- CDDAPlay = CDDAStart;
- CDDAFeed = CDDAStart;
+ spu.CDDAEnd = spu.CDDAStart + 16384;
+ spu.CDDAPlay = spu.CDDAStart;
+ spu.CDDAFeed = spu.CDDAStart;
for(i=0;i<MAXCHAN;i++) // loop sound channels
{
-// we don't use mutex sync... not needed, would only
-// slow us down:
-// s_chan[i].hMutex=CreateMutex(NULL,FALSE,NULL);
s_chan[i].ADSRX.SustainLevel = 0xf; // -> init sustain
s_chan[i].ADSRX.SustainIncrease = 1;
- s_chan[i].pLoop=spuMemC;
- s_chan[i].pCurr=spuMemC;
+ s_chan[i].pLoop=spu.spuMemC;
+ s_chan[i].pCurr=spu.spuMemC;
}
ClearWorkingState();
- bSpuInit=1; // flag: we are inited
+ spu.bSpuInit=1; // flag: we are inited
}
// REMOVESTREAMS: free most buffer
void RemoveStreams(void)
{
- free(pSpuBuffer); // free mixing buffer
- pSpuBuffer = NULL;
- free(sRVBStart); // free reverb buffer
- sRVBStart = NULL;
- free(XAStart); // free XA buffer
- XAStart = NULL;
- free(CDDAStart); // free CDDA buffer
- CDDAStart = NULL;
+ free(spu.pSpuBuffer); // free mixing buffer
+ spu.pSpuBuffer = NULL;
+ free(spu.sRVBStart); // free reverb buffer
+ spu.sRVBStart = NULL;
+ free(spu.XAStart); // free XA buffer
+ spu.XAStart = NULL;
+ free(spu.CDDAStart); // free CDDA buffer
+ spu.CDDAStart = NULL;
}
// INIT/EXIT STUFF
// SPUINIT: this func will be called first by the main emu
long CALLBACK SPUinit(void)
{
- spuMemC = (unsigned char *)spuMem; // just small setup
+ spu.spuMemC = (unsigned char *)spu.spuMem; // just small setup
memset((void *)&rvb, 0, sizeof(REVERBInfo));
InitADSR();
- spuIrq = 0;
- spuAddr = 0xffffffff;
- spuMemC = (unsigned char *)spuMem;
- decode_pos = 0;
- memset((void *)s_chan, 0, (MAXCHAN + 1) * sizeof(SPUCHAN));
- pSpuIrq = 0;
+ spu.spuAddr = 0xffffffff;
+ spu.decode_pos = 0;
+ memset((void *)s_chan, 0, sizeof(s_chan));
+ spu.pSpuIrq = spu.spuMemC;
SetupStreams(); // prepare streaming
+ if (spu_config.iVolume == 0)
+ spu_config.iVolume = 768; // 1024 is 1.0
+
return 0;
}
// SPUOPEN: called by main emu after init
long CALLBACK SPUopen(void)
{
- if (bSPUIsOpen) return 0; // security for some stupid main emus
+ if (spu.bSPUIsOpen) return 0; // security for some stupid main emus
SetupSound(); // setup sound (before init!)
- bSPUIsOpen = 1;
+ spu.bSPUIsOpen = 1;
return PSE_SPU_ERR_SUCCESS;
}
// SPUCLOSE: called before shutdown
long CALLBACK SPUclose(void)
{
- if (!bSPUIsOpen) return 0; // some security
+ if (!spu.bSPUIsOpen) return 0; // some security
- bSPUIsOpen = 0; // no more open
+ spu.bSPUIsOpen = 0; // no more open
out_current->finish(); // no more sound handling
{
SPUclose();
RemoveStreams(); // no more streaming
- bSpuInit=0;
+ spu.bSpuInit=0;
return 0;
}
// passes a callback that should be called on SPU-IRQ/cdda volume change
void CALLBACK SPUregisterCallback(void (CALLBACK *callback)(void))
{
- irqCallback = callback;
+ spu.irqCallback = callback;
}
void CALLBACK SPUregisterCDDAVolume(void (CALLBACK *CDDAVcallback)(unsigned short,unsigned short))
{
- cddavCallback = CDDAVcallback;
+ spu.cddavCallback = CDDAVcallback;
}
void CALLBACK SPUregisterScheduleCb(void (CALLBACK *callback)(unsigned int))
{
- scheduleCallback = callback;
+ spu.scheduleCallback = callback;
}
// COMMON PLUGIN INFO FUNCS
for(;ch<MAXCHAN;ch++)
{
- if (!(dwChannelOn & (1<<ch)))
+ if (!(spu.dwChannelOn & (1<<ch)))
continue;
if (s_chan[ch].bFMod == 2)
fmod_chans |= 1 << ch;
if (s_chan[ch].bNoise)
noise_chans |= 1 << ch;
- if((spuCtrl&CTRL_IRQ) && s_chan[ch].pCurr <= pSpuIrq && s_chan[ch].pLoop <= pSpuIrq)
+ if((spu.spuCtrl&CTRL_IRQ) && s_chan[ch].pCurr <= spu.pSpuIrq && s_chan[ch].pLoop <= spu.pSpuIrq)
irq_chans |= 1 << ch;
}
- *chans_out = dwChannelOn;
- *run_chans = ~dwChannelOn & ~dwChannelDead & irq_chans;
+ *chans_out = spu.dwChannelOn;
+ *run_chans = ~spu.dwChannelOn & ~spu.dwChannelDead & irq_chans;
*fmod_chans_out = fmod_chans;
*noise_chans_out = noise_chans;
}
notaz.gp2x.de / pcsx_rearmed.git / blobdiff