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

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

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
}

////////////////////////////////////////////////////////////////////////
// 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  = 100;                                  // 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(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;
    }
  }
 //----------------------------------------------------//

 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(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)&~2047;
         vr+=(gauss[vl+1]*gvall(1))&~2047;
         vr+=(gauss[vl+2]*gvall(2))&~2047;
         vr+=(gauss[vl+3]*gvall(3))&~2047;
         l= (vr >> 11) & 0xffff;
         vr=(gauss[vl]*gvalr0)&~2047;
         vr+=(gauss[vl+1]*gvalr(1))&~2047;
         vr+=(gauss[vl+2]*gvalr(2))&~2047;
         vr+=(gauss[vl+3]*gvalr(3))&~2047;
         l |= vr << 5;
        }
       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
    {
     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)&~2047;
         vr+=(gauss[vl+1]*gvall(1))&~2047;
         vr+=(gauss[vl+2]*gvall(2))&~2047;
         vr+=(gauss[vl+3]*gvall(3))&~2047;
         l= (vr >> 11) & 0xffff;
         vr=(gauss[vl]*gvalr0)&~2047;
         vr+=(gauss[vl+1]*gvalr(1))&~2047;
         vr+=(gauss[vl+2]*gvalr(2))&~2047;
         vr+=(gauss[vl+3]*gvalr(3))&~2047;
         l |= vr << 5;
        }
       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(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)&~2047;
         vr+=(gauss[vl+1]*gvall(1))&~2047;
         vr+=(gauss[vl+2]*gvall(2))&~2047;
         vr+=(gauss[vl+3]*gvall(3))&~2047;
         l1=s= vr >> 11;
         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
    {
     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)&~2047;
         vr+=(gauss[vl+1]*gvall(1))&~2047;
         vr+=(gauss[vl+2]*gvall(2))&~2047;
         vr+=(gauss[vl+3]*gvall(3))&~2047;
         l=s= vr >> 11;
        }
       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	#define _IN_XA
	20	#include <stdint.h>
	21
	22	// will be included from spu.c
	23	#ifdef _IN_SPU
	24
	25	////////////////////////////////////////////////////////////////////////
	26	// XA GLOBALS
	27	////////////////////////////////////////////////////////////////////////
	28
	29	static int gauss_ptr = 0;
	30	static int gauss_window[8] = {0, 0, 0, 0, 0, 0, 0, 0};
	31
	32	#define gvall0 gauss_window[gauss_ptr]
	33	#define gvall(x) gauss_window[(gauss_ptr+x)&3]
	34	#define gvalr0 gauss_window[4+gauss_ptr]
	35	#define gvalr(x) gauss_window[4+((gauss_ptr+x)&3)]
	36
	37	////////////////////////////////////////////////////////////////////////
	38	// MIX XA & CDDA
	39	////////////////////////////////////////////////////////////////////////
	40
	41	INLINE void MixXA(int *SSumLR, int ns_to, int decode_pos)
	42	{
	43	int cursor = decode_pos;
	44	int ns;
	45	short l, r;
	46	uint32_t v = spu.XALastVal;
	47
	48	if(spu.XAPlay != spu.XAFeed \|\| spu.XARepeat > 0)
	49	{
	50	if(spu.XAPlay == spu.XAFeed)
	51	spu.XARepeat--;
	52
	53	for(ns = 0; ns < ns_to*2; )
	54	{
	55	if(spu.XAPlay != spu.XAFeed) v=*spu.XAPlay++;
	56	if(spu.XAPlay == spu.XAEnd) spu.XAPlay=spu.XAStart;
	57
	58	l = ((int)(short)v * spu.iLeftXAVol) >> 15;
	59	r = ((int)(short)(v >> 16) * spu.iLeftXAVol) >> 15;
	60	SSumLR[ns++] += l;
	61	SSumLR[ns++] += r;
	62
	63	spu.spuMem[cursor] = v;
	64	spu.spuMem[cursor + 0x400/2] = v >> 16;
	65	cursor = (cursor + 1) & 0x1ff;
	66	}
	67	spu.XALastVal = v;
	68	}
	69	// occasionally CDDAFeed underflows by a few samples due to poor timing,
	70	// hence this 'ns_to < 8'
	71	else if(spu.CDDAPlay != spu.CDDAFeed \|\| ns_to < 8)
	72	{
	73	for(ns = 0; ns < ns_to*2; )
	74	{
	75	if(spu.CDDAPlay != spu.CDDAFeed) v=*spu.CDDAPlay++;
	76	if(spu.CDDAPlay == spu.CDDAEnd) spu.CDDAPlay=spu.CDDAStart;
	77
	78	l = ((int)(short)v * spu.iLeftXAVol) >> 15;
	79	r = ((int)(short)(v >> 16) * spu.iLeftXAVol) >> 15;
	80	SSumLR[ns++] += l;
	81	SSumLR[ns++] += r;
	82
	83	spu.spuMem[cursor] = v;
	84	spu.spuMem[cursor + 0x400/2] = v >> 16;
	85	cursor = (cursor + 1) & 0x1ff;
	86	}
	87	spu.XALastVal = v;
	88	}
	89	else
	90	spu.XALastVal = 0;
	91	}
	92
	93	////////////////////////////////////////////////////////////////////////
	94	// small linux time helper... only used for watchdog
	95	////////////////////////////////////////////////////////////////////////
	96
	97	static unsigned long timeGetTime_spu()
	98	{
	99	#if defined(NO_OS)
	100	return 0;
	101	#elif defined(_WIN32)
	102	return GetTickCount();
	103	#else
	104	struct timeval tv;
	105	gettimeofday(&tv, 0); // well, maybe there are better ways
	106	return tv.tv_sec * 1000 + tv.tv_usec/1000; // to do that, but at least it works
	107	#endif
	108	}
	109
	110	////////////////////////////////////////////////////////////////////////
	111	// FEED XA
	112	////////////////////////////////////////////////////////////////////////
	113
	114	INLINE void FeedXA(xa_decode_t *xap)
	115	{
	116	int sinc,spos,i,iSize,iPlace,vl,vr;
	117
	118	if(!spu.bSPUIsOpen) return;
	119
	120	spu.xapGlobal = xap; // store info for save states
	121	spu.XARepeat = 100; // set up repeat
	122
	123	#if 0//def XA_HACK
	124	iSize=((45500*xap->nsamples)/xap->freq); // get size
	125	#else
	126	iSize=((44100*xap->nsamples)/xap->freq); // get size
	127	#endif
	128	if(!iSize) return; // none? bye
	129
	130	if(spu.XAFeed<spu.XAPlay) iPlace=spu.XAPlay-spu.XAFeed; // how much space in my buf?
	131	else iPlace=(spu.XAEnd-spu.XAFeed) + (spu.XAPlay-spu.XAStart);
	132
	133	if(iPlace==0) return; // no place at all
	134
	135	//----------------------------------------------------//
	136	if(spu_config.iXAPitch) // pitch change option?
	137	{
	138	static DWORD dwLT=0;
	139	static DWORD dwFPS=0;
	140	static int iFPSCnt=0;
	141	static int iLastSize=0;
	142	static DWORD dwL1=0;
	143	DWORD dw=timeGetTime_spu(),dw1,dw2;
	144
	145	iPlace=iSize;
	146
	147	dwFPS+=dw-dwLT;iFPSCnt++;
	148
	149	dwLT=dw;
	150
	151	if(iFPSCnt>=10)
	152	{
	153	if(!dwFPS) dwFPS=1;
	154	dw1=1000000/dwFPS;
	155	if(dw1>=(dwL1-100) && dw1<=(dwL1+100)) dw1=dwL1;
	156	else dwL1=dw1;
	157	dw2=(xap->freq*100/xap->nsamples);
	158	if((!dw1)\|\|((dw2+100)>=dw1)) iLastSize=0;
	159	else
	160	{
	161	iLastSize=iSize*dw2/dw1;
	162	if(iLastSize>iPlace) iLastSize=iPlace;
	163	iSize=iLastSize;
	164	}
	165	iFPSCnt=0;dwFPS=0;
	166	}
	167	else
	168	{
	169	if(iLastSize) iSize=iLastSize;
	170	}
	171	}
	172	//----------------------------------------------------//
	173
	174	spos=0x10000L;
	175	sinc = (xap->nsamples << 16) / iSize; // calc freq by num / size
	176
	177	if(xap->stereo)
	178	{
	179	uint32_t * pS=(uint32_t *)xap->pcm;
	180	uint32_t l=0;
	181
	182	if(spu_config.iXAPitch)
	183	{
	184	int32_t l1,l2;short s;
	185	for(i=0;i<iSize;i++)
	186	{
	187	if(spu_config.iUseInterpolation==2)
	188	{
	189	while(spos>=0x10000L)
	190	{
	191	l = *pS++;
	192	gauss_window[gauss_ptr] = (short)LOWORD(l);
	193	gauss_window[4+gauss_ptr] = (short)HIWORD(l);
	194	gauss_ptr = (gauss_ptr+1) & 3;
	195	spos -= 0x10000L;
	196	}
	197	vl = (spos >> 6) & ~3;
	198	vr=(gauss[vl]*gvall0)&~2047;
	199	vr+=(gauss[vl+1]*gvall(1))&~2047;
	200	vr+=(gauss[vl+2]*gvall(2))&~2047;
	201	vr+=(gauss[vl+3]*gvall(3))&~2047;
	202	l= (vr >> 11) & 0xffff;
	203	vr=(gauss[vl]*gvalr0)&~2047;
	204	vr+=(gauss[vl+1]*gvalr(1))&~2047;
	205	vr+=(gauss[vl+2]*gvalr(2))&~2047;
	206	vr+=(gauss[vl+3]*gvalr(3))&~2047;
	207	l \|= vr << 5;
	208	}
	209	else
	210	{
	211	while(spos>=0x10000L)
	212	{
	213	l = *pS++;
	214	spos -= 0x10000L;
	215	}
	216	}
	217
	218	s=(short)LOWORD(l);
	219	l1=s;
	220	l1=(l1*iPlace)/iSize;
	221	ssat32_to_16(l1);
	222	s=(short)HIWORD(l);
	223	l2=s;
	224	l2=(l2*iPlace)/iSize;
	225	ssat32_to_16(l2);
	226	l=(l1&0xffff)\|(l2<<16);
	227
	228	*spu.XAFeed++=l;
	229
	230	if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
	231	if(spu.XAFeed==spu.XAPlay)
	232	{
	233	if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
	234	break;
	235	}
	236
	237	spos += sinc;
	238	}
	239	}
	240	else
	241	{
	242	for(i=0;i<iSize;i++)
	243	{
	244	if(spu_config.iUseInterpolation==2)
	245	{
	246	while(spos>=0x10000L)
	247	{
	248	l = *pS++;
	249	gauss_window[gauss_ptr] = (short)LOWORD(l);
	250	gauss_window[4+gauss_ptr] = (short)HIWORD(l);
	251	gauss_ptr = (gauss_ptr+1) & 3;
	252	spos -= 0x10000L;
	253	}
	254	vl = (spos >> 6) & ~3;
	255	vr=(gauss[vl]*gvall0)&~2047;
	256	vr+=(gauss[vl+1]*gvall(1))&~2047;
	257	vr+=(gauss[vl+2]*gvall(2))&~2047;
	258	vr+=(gauss[vl+3]*gvall(3))&~2047;
	259	l= (vr >> 11) & 0xffff;
	260	vr=(gauss[vl]*gvalr0)&~2047;
	261	vr+=(gauss[vl+1]*gvalr(1))&~2047;
	262	vr+=(gauss[vl+2]*gvalr(2))&~2047;
	263	vr+=(gauss[vl+3]*gvalr(3))&~2047;
	264	l \|= vr << 5;
	265	}
	266	else
	267	{
	268	while(spos>=0x10000L)
	269	{
	270	l = *pS++;
	271	spos -= 0x10000L;
	272	}
	273	}
	274
	275	*spu.XAFeed++=l;
	276
	277	if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
	278	if(spu.XAFeed==spu.XAPlay)
	279	{
	280	if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
	281	break;
	282	}
	283
	284	spos += sinc;
	285	}
	286	}
	287	}
	288	else
	289	{
	290	unsigned short * pS=(unsigned short *)xap->pcm;
	291	uint32_t l;short s=0;
	292
	293	if(spu_config.iXAPitch)
	294	{
	295	int32_t l1;
	296	for(i=0;i<iSize;i++)
	297	{
	298	if(spu_config.iUseInterpolation==2)
	299	{
	300	while(spos>=0x10000L)
	301	{
	302	gauss_window[gauss_ptr] = (short)*pS++;
	303	gauss_ptr = (gauss_ptr+1) & 3;
	304	spos -= 0x10000L;
	305	}
	306	vl = (spos >> 6) & ~3;
	307	vr=(gauss[vl]*gvall0)&~2047;
	308	vr+=(gauss[vl+1]*gvall(1))&~2047;
	309	vr+=(gauss[vl+2]*gvall(2))&~2047;
	310	vr+=(gauss[vl+3]*gvall(3))&~2047;
	311	l1=s= vr >> 11;
	312	l1 &= 0xffff;
	313	}
	314	else
	315	{
	316	while(spos>=0x10000L)
	317	{
	318	s = *pS++;
	319	spos -= 0x10000L;
	320	}
	321	l1=s;
	322	}
	323
	324	l1=(l1*iPlace)/iSize;
	325	ssat32_to_16(l1);
	326	l=(l1&0xffff)\|(l1<<16);
	327	*spu.XAFeed++=l;
	328
	329	if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
	330	if(spu.XAFeed==spu.XAPlay)
	331	{
	332	if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
	333	break;
	334	}
	335
	336	spos += sinc;
	337	}
	338	}
	339	else
	340	{
	341	for(i=0;i<iSize;i++)
	342	{
	343	if(spu_config.iUseInterpolation==2)
	344	{
	345	while(spos>=0x10000L)
	346	{
	347	gauss_window[gauss_ptr] = (short)*pS++;
	348	gauss_ptr = (gauss_ptr+1) & 3;
	349	spos -= 0x10000L;
	350	}
	351	vl = (spos >> 6) & ~3;
	352	vr=(gauss[vl]*gvall0)&~2047;
	353	vr+=(gauss[vl+1]*gvall(1))&~2047;
	354	vr+=(gauss[vl+2]*gvall(2))&~2047;
	355	vr+=(gauss[vl+3]*gvall(3))&~2047;
	356	l=s= vr >> 11;
	357	}
	358	else
	359	{
	360	while(spos>=0x10000L)
	361	{
	362	s = *pS++;
	363	spos -= 0x10000L;
	364	}
	365	l=s;
	366	}
	367
	368	l &= 0xffff;
	369	*spu.XAFeed++=(l\|(l<<16));
	370
	371	if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
	372	if(spu.XAFeed==spu.XAPlay)
	373	{
	374	if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
	375	break;
	376	}
	377
	378	spos += sinc;
	379	}
	380	}
	381	}
	382	}
	383
	384	////////////////////////////////////////////////////////////////////////
	385	// FEED CDDA
	386	////////////////////////////////////////////////////////////////////////
	387
	388	INLINE int FeedCDDA(unsigned char *pcm, int nBytes)
	389	{
	390	int space;
	391	space=(spu.CDDAPlay-spu.CDDAFeed-1)*4 & (CDDA_BUFFER_SIZE - 1);
	392	if(space<nBytes)
	393	return 0x7761; // rearmed_wait
	394
	395	while(nBytes>0)
	396	{
	397	if(spu.CDDAFeed==spu.CDDAEnd) spu.CDDAFeed=spu.CDDAStart;
	398	space=(spu.CDDAPlay-spu.CDDAFeed-1)*4 & (CDDA_BUFFER_SIZE - 1);
	399	if(spu.CDDAFeed+space/4>spu.CDDAEnd)
	400	space=(spu.CDDAEnd-spu.CDDAFeed)*4;
	401	if(space>nBytes)
	402	space=nBytes;
	403
	404	memcpy(spu.CDDAFeed,pcm,space);
	405	spu.CDDAFeed+=space/4;
	406	nBytes-=space;
	407	pcm+=space;
	408	}
	409
	410	return 0x676f; // rearmed_go
	411	}
	412
	413	#endif