[pcsx_rearmed.git] / plugins / dfsound / xa.c

/***************************************************************************
                            xa.c  -  description
                             -------------------
    begin                : Wed May 15 2002
    copyright            : (C) 2002 by Pete Bernert
    email                : BlackDove@addcom.de
 ***************************************************************************/
/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version. See also the license.txt file for *
 *   additional informations.                                              *
 *                                                                         *
 ***************************************************************************/

#include "stdafx.h"
#include "spu.h"
#define _IN_XA
#include <stdint.h>

// will be included from spu.c
#ifdef _IN_SPU

////////////////////////////////////////////////////////////////////////
// XA GLOBALS
////////////////////////////////////////////////////////////////////////

static int gauss_ptr = 0;
static int gauss_window[8] = {0, 0, 0, 0, 0, 0, 0, 0};

#define gvall0 gauss_window[gauss_ptr]
#define gvall(x) gauss_window[(gauss_ptr+x)&3]
#define gvalr0 gauss_window[4+gauss_ptr]
#define gvalr(x) gauss_window[4+((gauss_ptr+x)&3)]

////////////////////////////////////////////////////////////////////////
// MIX XA & CDDA
////////////////////////////////////////////////////////////////////////

INLINE void MixXA(int *SSumLR, int ns_to, int decode_pos)
{
 int cursor = decode_pos;
 int ns;
 short l, r;
 uint32_t v = spu.XALastVal;

 if(spu.XAPlay != spu.XAFeed || spu.XARepeat > 0)
 {
  if(spu.XAPlay == spu.XAFeed)
   spu.XARepeat--;

  for(ns = 0; ns < ns_to*2; )
   {
    if(spu.XAPlay != spu.XAFeed) v=*spu.XAPlay++;
    if(spu.XAPlay == spu.XAEnd) spu.XAPlay=spu.XAStart;

    l = ((int)(short)v * spu.iLeftXAVol) >> 15;
    r = ((int)(short)(v >> 16) * spu.iLeftXAVol) >> 15;
    SSumLR[ns++] += l;
    SSumLR[ns++] += r;

    spu.spuMem[cursor] = HTOLE16(v);
    spu.spuMem[cursor + 0x400/2] = HTOLE16(v >> 16);
    cursor = (cursor + 1) & 0x1ff;
   }
  spu.XALastVal = v;
 }
 // occasionally CDDAFeed underflows by a few samples due to poor timing,
 // hence this 'ns_to < 8'
 else if(spu.CDDAPlay != spu.CDDAFeed || ns_to < 8)
 {
  for(ns = 0; ns < ns_to*2; )
   {
    if(spu.CDDAPlay != spu.CDDAFeed) v=*spu.CDDAPlay++;
    if(spu.CDDAPlay == spu.CDDAEnd) spu.CDDAPlay=spu.CDDAStart;

    l = ((int)(short)v * spu.iLeftXAVol) >> 15;
    r = ((int)(short)(v >> 16) * spu.iLeftXAVol) >> 15;
    SSumLR[ns++] += l;
    SSumLR[ns++] += r;

    spu.spuMem[cursor] = HTOLE16(v);
    spu.spuMem[cursor + 0x400/2] = HTOLE16(v >> 16);
    cursor = (cursor + 1) & 0x1ff;
   }
  spu.XALastVal = v;
 }
 else
  spu.XALastVal = 0;
}

////////////////////////////////////////////////////////////////////////
// small linux time helper... only used for watchdog
////////////////////////////////////////////////////////////////////////

#if 0
static unsigned long timeGetTime_spu()
{
#if defined(NO_OS)
 return 0;
#elif defined(_WIN32)
 return GetTickCount();
#else
 struct timeval tv;
 gettimeofday(&tv, 0);                                 // well, maybe there are better ways
 return tv.tv_sec * 1000 + tv.tv_usec/1000;            // to do that, but at least it works
#endif
}
#endif

////////////////////////////////////////////////////////////////////////
// FEED XA 
////////////////////////////////////////////////////////////////////////

INLINE void FeedXA(xa_decode_t *xap)
{
 int sinc,spos,i,iSize,iPlace,vl,vr;

 if(!spu.bSPUIsOpen) return;

 spu.xapGlobal = xap;                                  // store info for save states
 spu.XARepeat  = 3;                                    // set up repeat

#if 0//def XA_HACK
 iSize=((45500*xap->nsamples)/xap->freq);              // get size
#else
 iSize=((44100*xap->nsamples)/xap->freq);              // get size
#endif
 if(!iSize) return;                                    // none? bye

 if(spu.XAFeed<spu.XAPlay) iPlace=spu.XAPlay-spu.XAFeed; // how much space in my buf?
 else              iPlace=(spu.XAEnd-spu.XAFeed) + (spu.XAPlay-spu.XAStart);

 if(iPlace==0) return;                                 // no place at all

 //----------------------------------------------------//
#if 0
 if(spu_config.iXAPitch)                               // pitch change option?
  {
   static DWORD dwLT=0;
   static DWORD dwFPS=0;
   static int   iFPSCnt=0;
   static int   iLastSize=0;
   static DWORD dwL1=0;
   DWORD dw=timeGetTime_spu(),dw1,dw2;

   iPlace=iSize;

   dwFPS+=dw-dwLT;iFPSCnt++;

   dwLT=dw;
                                       
   if(iFPSCnt>=10)
    {
     if(!dwFPS) dwFPS=1;
     dw1=1000000/dwFPS; 
     if(dw1>=(dwL1-100) && dw1<=(dwL1+100)) dw1=dwL1;
     else dwL1=dw1;
     dw2=(xap->freq*100/xap->nsamples);
     if((!dw1)||((dw2+100)>=dw1)) iLastSize=0;
     else
      {
       iLastSize=iSize*dw2/dw1;
       if(iLastSize>iPlace) iLastSize=iPlace;
       iSize=iLastSize;
      }
     iFPSCnt=0;dwFPS=0;
    }
   else
    {
     if(iLastSize) iSize=iLastSize;
    }
  }
#endif
 //----------------------------------------------------//

 spos=0x10000L;
 sinc = (xap->nsamples << 16) / iSize;                 // calc freq by num / size

 if(xap->stereo)
{
   uint32_t * pS=(uint32_t *)xap->pcm;
   uint32_t l=0;

#if 0
   if(spu_config.iXAPitch)
    {
     int32_t l1,l2;short s;
     for(i=0;i<iSize;i++)
      {
       if(spu_config.iUseInterpolation==2)
        {
         while(spos>=0x10000L)
          {
           l = *pS++;
           gauss_window[gauss_ptr] = (short)LOWORD(l);
           gauss_window[4+gauss_ptr] = (short)HIWORD(l);
           gauss_ptr = (gauss_ptr+1) & 3;
           spos -= 0x10000L;
          }
         vl = (spos >> 6) & ~3;
         vr=(gauss[vl]*gvall0) >> 15;
         vr+=(gauss[vl+1]*gvall(1)) >> 15;
         vr+=(gauss[vl+2]*gvall(2)) >> 15;
         vr+=(gauss[vl+3]*gvall(3)) >> 15;
         l= vr & 0xffff;
         vr=(gauss[vl]*gvalr0) >> 15;
         vr+=(gauss[vl+1]*gvalr(1)) >> 15;
         vr+=(gauss[vl+2]*gvalr(2)) >> 15;
         vr+=(gauss[vl+3]*gvalr(3)) >> 15;
         l |= vr << 16;
        }
       else
        {
         while(spos>=0x10000L)
          {
           l = *pS++;
           spos -= 0x10000L;
          }
        }

       s=(short)LOWORD(l);
       l1=s;
       l1=(l1*iPlace)/iSize;
       ssat32_to_16(l1);
       s=(short)HIWORD(l);
       l2=s;
       l2=(l2*iPlace)/iSize;
       ssat32_to_16(l2);
       l=(l1&0xffff)|(l2<<16);

       *spu.XAFeed++=l;

       if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
       if(spu.XAFeed==spu.XAPlay)
        {
         if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
         break;
        }

       spos += sinc;
      }
    }
   else
#endif
    {
     for(i=0;i<iSize;i++)
      {
       if(spu_config.iUseInterpolation==2)
        {
         while(spos>=0x10000L)
          {
           l = *pS++;
           gauss_window[gauss_ptr] = (short)LOWORD(l);
           gauss_window[4+gauss_ptr] = (short)HIWORD(l);
           gauss_ptr = (gauss_ptr+1) & 3;
           spos -= 0x10000L;
          }
         vl = (spos >> 6) & ~3;
         vr=(gauss[vl]*gvall0) >> 15;
         vr+=(gauss[vl+1]*gvall(1)) >> 15;
         vr+=(gauss[vl+2]*gvall(2)) >> 15;
         vr+=(gauss[vl+3]*gvall(3)) >> 15;
         l= vr & 0xffff;
         vr=(gauss[vl]*gvalr0) >> 15;
         vr+=(gauss[vl+1]*gvalr(1)) >> 15;
         vr+=(gauss[vl+2]*gvalr(2)) >> 15;
         vr+=(gauss[vl+3]*gvalr(3)) >> 15;
         l |= vr << 16;
        }
       else
        {
         while(spos>=0x10000L)
          {
           l = *pS++;
           spos -= 0x10000L;
          }
        }

       *spu.XAFeed++=l;

       if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
       if(spu.XAFeed==spu.XAPlay)
        {
         if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
         break;
        }

       spos += sinc;
      }
    }
  }
 else
  {
   unsigned short * pS=(unsigned short *)xap->pcm;
   uint32_t l;short s=0;

#if 0
   if(spu_config.iXAPitch)
    {
     int32_t l1;
     for(i=0;i<iSize;i++)
      {
       if(spu_config.iUseInterpolation==2)
        {
         while(spos>=0x10000L)
          {
           gauss_window[gauss_ptr] = (short)*pS++;
           gauss_ptr = (gauss_ptr+1) & 3;
           spos -= 0x10000L;
          }
         vl = (spos >> 6) & ~3;
         vr=(gauss[vl]*gvall0) >> 15;
         vr+=(gauss[vl+1]*gvall(1)) >> 15;
         vr+=(gauss[vl+2]*gvall(2)) >> 15;
         vr+=(gauss[vl+3]*gvall(3)) >> 15;
         l1=s= vr;
         l1 &= 0xffff;
        }
       else
        {
         while(spos>=0x10000L)
          {
           s = *pS++;
           spos -= 0x10000L;
          }
         l1=s;
        }

       l1=(l1*iPlace)/iSize;
       ssat32_to_16(l1);
       l=(l1&0xffff)|(l1<<16);
       *spu.XAFeed++=l;

       if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
       if(spu.XAFeed==spu.XAPlay)
        {
         if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
         break;
        }

       spos += sinc;
      }
    }
   else
#endif
    {
     for(i=0;i<iSize;i++)
      {
       if(spu_config.iUseInterpolation==2)
        {
         while(spos>=0x10000L)
          {
           gauss_window[gauss_ptr] = (short)*pS++;
           gauss_ptr = (gauss_ptr+1) & 3;
           spos -= 0x10000L;
          }
         vl = (spos >> 6) & ~3;
         vr=(gauss[vl]*gvall0) >> 15;
         vr+=(gauss[vl+1]*gvall(1)) >> 15;
         vr+=(gauss[vl+2]*gvall(2)) >> 15;
         vr+=(gauss[vl+3]*gvall(3)) >> 15;
         l=s= vr;
        }
       else
        {
         while(spos>=0x10000L)
          {
           s = *pS++;
           spos -= 0x10000L;
          }
         l=s;
        }

       l &= 0xffff;
       *spu.XAFeed++=(l|(l<<16));

       if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
       if(spu.XAFeed==spu.XAPlay)
        {
         if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
         break;
        }

       spos += sinc;
      }
    }
  }
}

////////////////////////////////////////////////////////////////////////
// FEED CDDA
////////////////////////////////////////////////////////////////////////

INLINE int FeedCDDA(unsigned char *pcm, int nBytes)
{
 int space;
 space=(spu.CDDAPlay-spu.CDDAFeed-1)*4 & (CDDA_BUFFER_SIZE - 1);
 if(space<nBytes)
  return 0x7761; // rearmed_wait

 while(nBytes>0)
  {
   if(spu.CDDAFeed==spu.CDDAEnd) spu.CDDAFeed=spu.CDDAStart;
   space=(spu.CDDAPlay-spu.CDDAFeed-1)*4 & (CDDA_BUFFER_SIZE - 1);
   if(spu.CDDAFeed+space/4>spu.CDDAEnd)
    space=(spu.CDDAEnd-spu.CDDAFeed)*4;
   if(space>nBytes)
    space=nBytes;

   memcpy(spu.CDDAFeed,pcm,space);
   spu.CDDAFeed+=space/4;
   nBytes-=space;
   pcm+=space;
  }

 return 0x676f; // rearmed_go
}

#endif
Commit	Line	Data
	1	/***************************************************************************
	2	xa.c - description
	3	-------------------
	4	begin : Wed May 15 2002
	5	copyright : (C) 2002 by Pete Bernert
	6	email : BlackDove@addcom.de
	7	***************************************************************************/
	8	/***************************************************************************
	9	* *
	10	* This program is free software; you can redistribute it and/or modify *
	11	* it under the terms of the GNU General Public License as published by *
	12	* the Free Software Foundation; either version 2 of the License, or *
	13	* (at your option) any later version. See also the license.txt file for *
	14	* additional informations. *
	15	* *
	16	***************************************************************************/
	17
	18	#include "stdafx.h"
	19	#include "spu.h"
	20	#define _IN_XA
	21	#include <stdint.h>
	22
	23	// will be included from spu.c
	24	#ifdef _IN_SPU
	25
	26	////////////////////////////////////////////////////////////////////////
	27	// XA GLOBALS
	28	////////////////////////////////////////////////////////////////////////
	29
	30	static int gauss_ptr = 0;
	31	static int gauss_window[8] = {0, 0, 0, 0, 0, 0, 0, 0};
	32
	33	#define gvall0 gauss_window[gauss_ptr]
	34	#define gvall(x) gauss_window[(gauss_ptr+x)&3]
	35	#define gvalr0 gauss_window[4+gauss_ptr]
	36	#define gvalr(x) gauss_window[4+((gauss_ptr+x)&3)]
	37
	38	////////////////////////////////////////////////////////////////////////
	39	// MIX XA & CDDA
	40	////////////////////////////////////////////////////////////////////////
	41
	42	INLINE void MixXA(int *SSumLR, int ns_to, int decode_pos)
	43	{
	44	int cursor = decode_pos;
	45	int ns;
	46	short l, r;
	47	uint32_t v = spu.XALastVal;
	48
	49	if(spu.XAPlay != spu.XAFeed \|\| spu.XARepeat > 0)
	50	{
	51	if(spu.XAPlay == spu.XAFeed)
	52	spu.XARepeat--;
	53
	54	for(ns = 0; ns < ns_to*2; )
	55	{
	56	if(spu.XAPlay != spu.XAFeed) v=*spu.XAPlay++;
	57	if(spu.XAPlay == spu.XAEnd) spu.XAPlay=spu.XAStart;
	58
	59	l = ((int)(short)v * spu.iLeftXAVol) >> 15;
	60	r = ((int)(short)(v >> 16) * spu.iLeftXAVol) >> 15;
	61	SSumLR[ns++] += l;
	62	SSumLR[ns++] += r;
	63
	64	spu.spuMem[cursor] = HTOLE16(v);
	65	spu.spuMem[cursor + 0x400/2] = HTOLE16(v >> 16);
	66	cursor = (cursor + 1) & 0x1ff;
	67	}
	68	spu.XALastVal = v;
	69	}
	70	// occasionally CDDAFeed underflows by a few samples due to poor timing,
	71	// hence this 'ns_to < 8'
	72	else if(spu.CDDAPlay != spu.CDDAFeed \|\| ns_to < 8)
	73	{
	74	for(ns = 0; ns < ns_to*2; )
	75	{
	76	if(spu.CDDAPlay != spu.CDDAFeed) v=*spu.CDDAPlay++;
	77	if(spu.CDDAPlay == spu.CDDAEnd) spu.CDDAPlay=spu.CDDAStart;
	78
	79	l = ((int)(short)v * spu.iLeftXAVol) >> 15;
	80	r = ((int)(short)(v >> 16) * spu.iLeftXAVol) >> 15;
	81	SSumLR[ns++] += l;
	82	SSumLR[ns++] += r;
	83
	84	spu.spuMem[cursor] = HTOLE16(v);
	85	spu.spuMem[cursor + 0x400/2] = HTOLE16(v >> 16);
	86	cursor = (cursor + 1) & 0x1ff;
	87	}
	88	spu.XALastVal = v;
	89	}
	90	else
	91	spu.XALastVal = 0;
	92	}
	93
	94	////////////////////////////////////////////////////////////////////////
	95	// small linux time helper... only used for watchdog
	96	////////////////////////////////////////////////////////////////////////
	97
	98	#if 0
	99	static unsigned long timeGetTime_spu()
	100	{
	101	#if defined(NO_OS)
	102	return 0;
	103	#elif defined(_WIN32)
	104	return GetTickCount();
	105	#else
	106	struct timeval tv;
	107	gettimeofday(&tv, 0); // well, maybe there are better ways
	108	return tv.tv_sec * 1000 + tv.tv_usec/1000; // to do that, but at least it works
	109	#endif
	110	}
	111	#endif
	112
	113	////////////////////////////////////////////////////////////////////////
	114	// FEED XA
	115	////////////////////////////////////////////////////////////////////////
	116
	117	INLINE void FeedXA(xa_decode_t *xap)
	118	{
	119	int sinc,spos,i,iSize,iPlace,vl,vr;
	120
	121	if(!spu.bSPUIsOpen) return;
	122
	123	spu.xapGlobal = xap; // store info for save states
	124	spu.XARepeat = 3; // set up repeat
	125
	126	#if 0//def XA_HACK
	127	iSize=((45500*xap->nsamples)/xap->freq); // get size
	128	#else
	129	iSize=((44100*xap->nsamples)/xap->freq); // get size
	130	#endif
	131	if(!iSize) return; // none? bye
	132
	133	if(spu.XAFeed<spu.XAPlay) iPlace=spu.XAPlay-spu.XAFeed; // how much space in my buf?
	134	else iPlace=(spu.XAEnd-spu.XAFeed) + (spu.XAPlay-spu.XAStart);
	135
	136	if(iPlace==0) return; // no place at all
	137
	138	//----------------------------------------------------//
	139	#if 0
	140	if(spu_config.iXAPitch) // pitch change option?
	141	{
	142	static DWORD dwLT=0;
	143	static DWORD dwFPS=0;
	144	static int iFPSCnt=0;
	145	static int iLastSize=0;
	146	static DWORD dwL1=0;
	147	DWORD dw=timeGetTime_spu(),dw1,dw2;
	148
	149	iPlace=iSize;
	150
	151	dwFPS+=dw-dwLT;iFPSCnt++;
	152
	153	dwLT=dw;
	154
	155	if(iFPSCnt>=10)
	156	{
	157	if(!dwFPS) dwFPS=1;
	158	dw1=1000000/dwFPS;
	159	if(dw1>=(dwL1-100) && dw1<=(dwL1+100)) dw1=dwL1;
	160	else dwL1=dw1;
	161	dw2=(xap->freq*100/xap->nsamples);
	162	if((!dw1)\|\|((dw2+100)>=dw1)) iLastSize=0;
	163	else
	164	{
	165	iLastSize=iSize*dw2/dw1;
	166	if(iLastSize>iPlace) iLastSize=iPlace;
	167	iSize=iLastSize;
	168	}
	169	iFPSCnt=0;dwFPS=0;
	170	}
	171	else
	172	{
	173	if(iLastSize) iSize=iLastSize;
	174	}
	175	}
	176	#endif
	177	//----------------------------------------------------//
	178
	179	spos=0x10000L;
	180	sinc = (xap->nsamples << 16) / iSize; // calc freq by num / size
	181
	182	if(xap->stereo)
	183	{
	184	uint32_t * pS=(uint32_t *)xap->pcm;
	185	uint32_t l=0;
	186
	187	#if 0
	188	if(spu_config.iXAPitch)
	189	{
	190	int32_t l1,l2;short s;
	191	for(i=0;i<iSize;i++)
	192	{
	193	if(spu_config.iUseInterpolation==2)
	194	{
	195	while(spos>=0x10000L)
	196	{
	197	l = *pS++;
	198	gauss_window[gauss_ptr] = (short)LOWORD(l);
	199	gauss_window[4+gauss_ptr] = (short)HIWORD(l);
	200	gauss_ptr = (gauss_ptr+1) & 3;
	201	spos -= 0x10000L;
	202	}
	203	vl = (spos >> 6) & ~3;
	204	vr=(gauss[vl]*gvall0) >> 15;
	205	vr+=(gauss[vl+1]*gvall(1)) >> 15;
	206	vr+=(gauss[vl+2]*gvall(2)) >> 15;
	207	vr+=(gauss[vl+3]*gvall(3)) >> 15;
	208	l= vr & 0xffff;
	209	vr=(gauss[vl]*gvalr0) >> 15;
	210	vr+=(gauss[vl+1]*gvalr(1)) >> 15;
	211	vr+=(gauss[vl+2]*gvalr(2)) >> 15;
	212	vr+=(gauss[vl+3]*gvalr(3)) >> 15;
	213	l \|= vr << 16;
	214	}
	215	else
	216	{
	217	while(spos>=0x10000L)
	218	{
	219	l = *pS++;
	220	spos -= 0x10000L;
	221	}
	222	}
	223
	224	s=(short)LOWORD(l);
	225	l1=s;
	226	l1=(l1*iPlace)/iSize;
	227	ssat32_to_16(l1);
	228	s=(short)HIWORD(l);
	229	l2=s;
	230	l2=(l2*iPlace)/iSize;
	231	ssat32_to_16(l2);
	232	l=(l1&0xffff)\|(l2<<16);
	233
	234	*spu.XAFeed++=l;
	235
	236	if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
	237	if(spu.XAFeed==spu.XAPlay)
	238	{
	239	if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
	240	break;
	241	}
	242
	243	spos += sinc;
	244	}
	245	}
	246	else
	247	#endif
	248	{
	249	for(i=0;i<iSize;i++)
	250	{
	251	if(spu_config.iUseInterpolation==2)
	252	{
	253	while(spos>=0x10000L)
	254	{
	255	l = *pS++;
	256	gauss_window[gauss_ptr] = (short)LOWORD(l);
	257	gauss_window[4+gauss_ptr] = (short)HIWORD(l);
	258	gauss_ptr = (gauss_ptr+1) & 3;
	259	spos -= 0x10000L;
	260	}
	261	vl = (spos >> 6) & ~3;
	262	vr=(gauss[vl]*gvall0) >> 15;
	263	vr+=(gauss[vl+1]*gvall(1)) >> 15;
	264	vr+=(gauss[vl+2]*gvall(2)) >> 15;
	265	vr+=(gauss[vl+3]*gvall(3)) >> 15;
	266	l= vr & 0xffff;
	267	vr=(gauss[vl]*gvalr0) >> 15;
	268	vr+=(gauss[vl+1]*gvalr(1)) >> 15;
	269	vr+=(gauss[vl+2]*gvalr(2)) >> 15;
	270	vr+=(gauss[vl+3]*gvalr(3)) >> 15;
	271	l \|= vr << 16;
	272	}
	273	else
	274	{
	275	while(spos>=0x10000L)
	276	{
	277	l = *pS++;
	278	spos -= 0x10000L;
	279	}
	280	}
	281
	282	*spu.XAFeed++=l;
	283
	284	if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
	285	if(spu.XAFeed==spu.XAPlay)
	286	{
	287	if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
	288	break;
	289	}
	290
	291	spos += sinc;
	292	}
	293	}
	294	}
	295	else
	296	{
	297	unsigned short * pS=(unsigned short *)xap->pcm;
	298	uint32_t l;short s=0;
	299
	300	#if 0
	301	if(spu_config.iXAPitch)
	302	{
	303	int32_t l1;
	304	for(i=0;i<iSize;i++)
	305	{
	306	if(spu_config.iUseInterpolation==2)
	307	{
	308	while(spos>=0x10000L)
	309	{
	310	gauss_window[gauss_ptr] = (short)*pS++;
	311	gauss_ptr = (gauss_ptr+1) & 3;
	312	spos -= 0x10000L;
	313	}
	314	vl = (spos >> 6) & ~3;
	315	vr=(gauss[vl]*gvall0) >> 15;
	316	vr+=(gauss[vl+1]*gvall(1)) >> 15;
	317	vr+=(gauss[vl+2]*gvall(2)) >> 15;
	318	vr+=(gauss[vl+3]*gvall(3)) >> 15;
	319	l1=s= vr;
	320	l1 &= 0xffff;
	321	}
	322	else
	323	{
	324	while(spos>=0x10000L)
	325	{
	326	s = *pS++;
	327	spos -= 0x10000L;
	328	}
	329	l1=s;
	330	}
	331
	332	l1=(l1*iPlace)/iSize;
	333	ssat32_to_16(l1);
	334	l=(l1&0xffff)\|(l1<<16);
	335	*spu.XAFeed++=l;
	336
	337	if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
	338	if(spu.XAFeed==spu.XAPlay)
	339	{
	340	if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
	341	break;
	342	}
	343
	344	spos += sinc;
	345	}
	346	}
	347	else
	348	#endif
	349	{
	350	for(i=0;i<iSize;i++)
	351	{
	352	if(spu_config.iUseInterpolation==2)
	353	{
	354	while(spos>=0x10000L)
	355	{
	356	gauss_window[gauss_ptr] = (short)*pS++;
	357	gauss_ptr = (gauss_ptr+1) & 3;
	358	spos -= 0x10000L;
	359	}
	360	vl = (spos >> 6) & ~3;
	361	vr=(gauss[vl]*gvall0) >> 15;
	362	vr+=(gauss[vl+1]*gvall(1)) >> 15;
	363	vr+=(gauss[vl+2]*gvall(2)) >> 15;
	364	vr+=(gauss[vl+3]*gvall(3)) >> 15;
	365	l=s= vr;
	366	}
	367	else
	368	{
	369	while(spos>=0x10000L)
	370	{
	371	s = *pS++;
	372	spos -= 0x10000L;
	373	}
	374	l=s;
	375	}
	376
	377	l &= 0xffff;
	378	*spu.XAFeed++=(l\|(l<<16));
	379
	380	if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
	381	if(spu.XAFeed==spu.XAPlay)
	382	{
	383	if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
	384	break;
	385	}
	386
	387	spos += sinc;
	388	}
	389	}
	390	}
	391	}
	392
	393	////////////////////////////////////////////////////////////////////////
	394	// FEED CDDA
	395	////////////////////////////////////////////////////////////////////////
	396
	397	INLINE int FeedCDDA(unsigned char *pcm, int nBytes)
	398	{
	399	int space;
	400	space=(spu.CDDAPlay-spu.CDDAFeed-1)*4 & (CDDA_BUFFER_SIZE - 1);
	401	if(space<nBytes)
	402	return 0x7761; // rearmed_wait
	403
	404	while(nBytes>0)
	405	{
	406	if(spu.CDDAFeed==spu.CDDAEnd) spu.CDDAFeed=spu.CDDAStart;
	407	space=(spu.CDDAPlay-spu.CDDAFeed-1)*4 & (CDDA_BUFFER_SIZE - 1);
	408	if(spu.CDDAFeed+space/4>spu.CDDAEnd)
	409	space=(spu.CDDAEnd-spu.CDDAFeed)*4;
	410	if(space>nBytes)
	411	space=nBytes;
	412
	413	memcpy(spu.CDDAFeed,pcm,space);
	414	spu.CDDAFeed+=space/4;
	415	nBytes-=space;
	416	pcm+=space;
	417	}
	418
	419	return 0x676f; // rearmed_go
	420	}
	421
	422	#endif