#include "externals.h"
#include "registers.h"
-#include "dsoundoss.h"
+#include "out.h"
+#include "arm_features.h"
#ifdef ENABLE_NLS
#include <libintl.h>
// helpers for gauss interpolation
#define gval0 (((short*)(&s_chan[ch].SB[29]))[gpos])
-#define gval(x) (((short*)(&s_chan[ch].SB[29]))[(gpos+x)&3])
+#define gval(x) ((int)((short*)(&s_chan[ch].SB[29]))[(gpos+x)&3])
#include "gauss_i.h"
{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
- check_irq(ch, s_chan[ch].pCurr); // just in case
-
dwNewChannel&=~(1<<ch); // clear new channel bit
}
int vl, vr;int gpos;
vl = (spos >> 6) & ~3;
gpos = s_chan[ch].SB[28];
- vr=(gauss[vl]*gval0)&~2047;
+ vr=(gauss[vl]*(int)gval0)&~2047;
vr+=(gauss[vl+1]*gval(1))&~2047;
vr+=(gauss[vl+2]*gval(2))&~2047;
vr+=(gauss[vl+3]*gval(3))&~2047;
{
unsigned char *start;
int predict_nr,shift_factor,flags;
+ int stop = 0;
int ret = 0;
- start=s_chan[ch].pCurr; // set up the current pos
+ start = s_chan[ch].pCurr; // set up the current pos
+ if(start == spuMemC) // ?
+ stop = 1;
if(s_chan[ch].prevflags&1) // 1: stop/loop
{
if(!(s_chan[ch].prevflags&2))
- {
- dwChannelOn&=~(1<<ch); // -> turn everything off
- s_chan[ch].bStop=1;
- s_chan[ch].ADSRX.EnvelopeVol=0;
- }
+ stop = 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;
+ }
predict_nr=(int)start[0];
shift_factor=predict_nr&0xf;
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.. :(
+ }
if (start - spuMemC >= 0x80000)
start = spuMemC;
- ret = check_irq(ch, start);
-
s_chan[ch].pCurr = start; // store values for next cycle
s_chan[ch].prevflags = flags;
{
unsigned char *start = s_chan[ch].pCurr;
int flags = start[1];
+ int ret = check_irq(ch, start);
if(s_chan[ch].prevflags & 1)
start = s_chan[ch].pLoop;
s_chan[ch].pCurr = start;
s_chan[ch].prevflags = flags;
- return check_irq(ch, start);
+ return ret;
}
#define make_do_samples(name, fmod_code, interp_start, interp1_code, interp2_code, interp_end) \
sbpos = 0; \
d = decode_block(ch); \
if(d) \
- { \
- ret = ns; \
- goto out; \
- } \
+ ret = ns_to = ns + 1; \
} \
\
fa = SB[sbpos++]; \
spos += sinc; \
} \
\
-out: \
s_chan[ch].sinc = sinc; \
s_chan[ch].spos = spos; \
s_chan[ch].iSBPos = sbpos; \
static int do_samples_noise(int ch, int ns, int ns_to)
{
int level, shift, bit;
+ int ret = -1, d;
s_chan[ch].spos += s_chan[ch].sinc * (ns_to - ns);
while (s_chan[ch].spos >= 28*0x10000)
{
- skip_block(ch);
+ d = skip_block(ch);
+ if (d)
+ ret = ns_to;
s_chan[ch].spos -= 28*0x10000;
}
ChanBuf[ns] = (signed short)dwNoiseVal;
}
- return -1;
+ return ret;
}
-#ifdef __arm__
+#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);
{
const int *src = ChanBuf + start;
unsigned short *dst = &spuMem[0x800/2 + which*0x400/2];
- int cursor = decode_pos;
+ int cursor = decode_pos + start;
while (count-- > 0)
{
+ cursor &= 0x1ff;
dst[cursor] = *src++;
- cursor = (cursor + 1) & 0x1ff;
+ cursor++;
}
// decode_pos is updated and irqs are checked later, after voice loop
static int do_samples(int forced_updates)
{
int volmult = iVolume;
- int ns,ns_from,ns_to;
+ int ns,ns_from,ns_to,ns_len;
int ch,d,silentch;
int bIRQReturn=0;
- while(1)
- {
- // ok, at the beginning we are looking if there is
- // enuff free place in the dsound/oss buffer to
- // fill in new data, or if there is a new channel to start.
- // if not, we wait (thread) or return (timer/spuasync)
- // until enuff free place is available/a new channel gets
- // started
-
- if(!forced_updates && SoundGetBytesBuffered()) // still enuff data in sound buffer?
- {
- return 0;
- }
-
- cycles_since_update = 0;
- if(forced_updates > 0)
- forced_updates--;
+ // ok, at the beginning we are looking if there is
+ // enuff free place in the dsound/oss buffer to
+ // fill in new data, or if there is a new channel to start.
+ // if not, we return until enuff free place is available
+ // /a new channel gets started
- //--------------------------------------------------// continue from irq handling in timer mode?
+ if(!forced_updates && out_current->busy()) // still enuff data in sound buffer?
+ return 0;
+ while(!bIRQReturn)
+ {
ns_from=0;
ns_to=NSSIZE;
ch=0;
bIRQReturn=1;
lastch=ch;
lastns=ns_to=d;
- if(d==0)
- break;
}
+ 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_to-ns_from);
+ 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, ChanBuf, sizeof(iFMod));
- else if(s_chan[ch].bRVBActive)
- mix_chan_rvb(ns_from,ns_to-ns_from,s_chan[ch].iLeftVolume,s_chan[ch].iRightVolume);
+ 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_to-ns_from,s_chan[ch].iLeftVolume,s_chan[ch].iRightVolume);
+ mix_chan(ns_from, ns_len, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume);
}
}
// no need for bIRQReturn since the channel is silent
skip_block(ch);
- if(start == s_chan[ch].pCurr)
+ if(start == s_chan[ch].pCurr || start - spuMemC < 0x1000)
{
- // looping on self
+ // looping on self or stopped(?)
dwChannelDead |= 1<<ch;
s_chan[ch].spos = 0;
break;
ns++;
}
+ cycles_since_update -= PSXCLK / 44100 * NSSIZE;
+
//////////////////////////////////////////////////////
// special irq handling in the decode buffers (0x0000-0x1000)
// we know:
{
//printf("decoder irq %x\n", decode_pos);
do_irq();
+ bIRQReturn = 1;
}
}
decode_pos = (decode_pos + NSSIZE) & 0x1ff;
// feed the sound
// wanna have around 1/60 sec (16.666 ms) updates
- if (iCycle++ > 16/FRAG_MSECS)
+ if (iCycle++ >= 16/FRAG_MSECS)
{
- SoundFeedStreamData((unsigned char *)pSpuBuffer,
- ((unsigned char *)pS) - ((unsigned char *)pSpuBuffer));
+ out_current->feed(pSpuBuffer, (unsigned char *)pS - pSpuBuffer);
pS = (short *)pSpuBuffer;
iCycle = 0;
+
+ if(!forced_updates && out_current->busy())
+ break;
+ }
+
+ if(forced_updates > 0)
+ {
+ forced_updates--;
+ if(forced_updates == 0 && out_current->busy())
+ break;
}
+
+ if(cycles_since_update <= -PSXCLK/60 / 4)
+ break;
}
+ // this may cause desync, but help audio when the emu can't keep up..
+ if(cycles_since_update < 0)
+ cycles_since_update = 0;
+
return 0;
}
void CALLBACK SPUasync(unsigned long cycle)
{
- static int old_ctrl;
int forced_updates = 0;
int do_update = 0;
had_dma = 0;
}
- if((spuCtrl&CTRL_IRQ) && (((spuCtrl^old_ctrl)&CTRL_IRQ) // irq was enabled
- || cycles_since_update > PSXCLK/60 / 4)) {
- do_update = 1;
- forced_updates = cycles_since_update / (PSXCLK/44100) / NSSIZE;
- }
- // with no irqs, once per frame should be fine (using a bit more because of BIAS)
- else if(cycles_since_update > PSXCLK/60 * 5/4)
+ if(cycles_since_update > PSXCLK/60 * 5/4)
do_update = 1;
- old_ctrl = spuCtrl;
-
if(do_update)
do_samples(forced_updates);
}
bSPUIsOpen = 0; // no more open
- RemoveSound(); // no more sound handling
+ out_current->finish(); // no more sound handling
return 0;
}
cddavCallback = CDDAVcallback;
}
+void CALLBACK SPUregisterScheduleCb(void (CALLBACK *callback)(unsigned int))
+{
+}
+
// COMMON PLUGIN INFO FUNCS
/*
char * CALLBACK PSEgetLibName(void)
notaz.gp2x.de / pcsx_rearmed.git / blobdiff