[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 SkipCD(int ns_to, int decode_pos)
{
 int cursor = decode_pos;
 int ns;

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

    spu.spuMem[cursor] = 0;
    spu.spuMem[cursor + 0x400/2] = 0;
    cursor = (cursor + 1) & 0x1ff;
   }
 }
 else if(spu.CDDAPlay != spu.CDDAFeed)
 {
  for(ns = 0; ns < ns_to*2; ns += 2)
   {
    if(spu.CDDAPlay != spu.CDDAFeed) spu.CDDAPlay++;
    if(spu.CDDAPlay == spu.CDDAEnd) spu.CDDAPlay=spu.CDDAStart;

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

INLINE void MixCD(int *SSumLR, int *RVB, int ns_to, int decode_pos)
{
 int vll = spu.iLeftXAVol * spu.cdv.ll >> 7;
 int vrl = spu.iLeftXAVol * spu.cdv.rl >> 7;
 int vlr = spu.iRightXAVol * spu.cdv.lr >> 7;
 int vrr = spu.iRightXAVol * spu.cdv.rr >> 7;
 int cursor = decode_pos;
 int l1, r1, l, r;
 int ns;
 uint32_t v = spu.XALastVal;

 // note: spu volume doesn't affect cd capture
 if ((spu.cdv.ll | spu.cdv.lr | spu.cdv.rl | spu.cdv.rr) == 0)
 {
  SkipCD(ns_to, decode_pos);
  return;
 }

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

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

    l1 = (short)v, r1 = (short)(v >> 16);
    l = (l1 * vll + r1 * vrl) >> 15;
    r = (r1 * vrr + l1 * vlr) >> 15;
    ssat32_to_16(l);
    ssat32_to_16(r);
    if (spu.spuCtrl & CTRL_CD)
    {
     SSumLR[ns+0] += l;
     SSumLR[ns+1] += r;
    }
    if (unlikely(spu.spuCtrl & CTRL_CDREVERB))
    {
     RVB[ns+0] += l;
     RVB[ns+1] += 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; ns += 2)
   {
    if(spu.CDDAPlay != spu.CDDAFeed) v=*spu.CDDAPlay++;
    if(spu.CDDAPlay == spu.CDDAEnd) spu.CDDAPlay=spu.CDDAStart;

    l1 = (short)v, r1 = (short)(v >> 16);
    l = (l1 * vll + r1 * vrl) >> 15;
    r = (r1 * vrr + l1 * vlr) >> 15;
    ssat32_to_16(l);
    ssat32_to_16(r);
    if (spu.spuCtrl & CTRL_CD)
    {
     SSumLR[ns+0] += l;
     SSumLR[ns+1] += r;
    }
    if (unlikely(spu.spuCtrl & CTRL_CDREVERB))
    {
     RVB[ns+0] += l;
     RVB[ns+1] += r;
    }

    spu.spuMem[cursor] = HTOLE16(v);
    spu.spuMem[cursor + 0x400/2] = HTOLE16(v >> 16);
    cursor = (cursor + 1) & 0x1ff;
   }
  spu.XALastVal = v;
 }
 else if (spu.cdClearSamples > 0)
 {
  for(ns = 0; ns < ns_to; ns++)
   {
    spu.spuMem[cursor] = spu.spuMem[cursor + 0x400/2] = 0;
    cursor = (cursor + 1) & 0x1ff;
   }
  spu.cdClearSamples -= ns_to;
  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 
////////////////////////////////////////////////////////////////////////

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

 if(!spu.bSPUIsOpen) return;

 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
////////////////////////////////////////////////////////////////////////

void FeedCDDA(unsigned char *pcm, int nBytes)
{
 int space;
 space=(spu.CDDAPlay-spu.CDDAFeed-1)*4 & (CDDA_BUFFER_SIZE - 1);
 if (space < nBytes) {
  log_unhandled("FeedCDDA: %d/%d\n", nBytes, space);
  return;
 }

 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;
  }
}

#endif
// vim:shiftwidth=1:expandtab
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 SkipCD(int ns_to, int decode_pos)
	43	{
	44	int cursor = decode_pos;
	45	int ns;
	46
	47	if(spu.XAPlay != spu.XAFeed)
	48	{
	49	for(ns = 0; ns < ns_to*2; ns += 2)
	50	{
	51	if(spu.XAPlay != spu.XAFeed) spu.XAPlay++;
	52	if(spu.XAPlay == spu.XAEnd) spu.XAPlay=spu.XAStart;
	53
	54	spu.spuMem[cursor] = 0;
	55	spu.spuMem[cursor + 0x400/2] = 0;
	56	cursor = (cursor + 1) & 0x1ff;
	57	}
	58	}
	59	else if(spu.CDDAPlay != spu.CDDAFeed)
	60	{
	61	for(ns = 0; ns < ns_to*2; ns += 2)
	62	{
	63	if(spu.CDDAPlay != spu.CDDAFeed) spu.CDDAPlay++;
	64	if(spu.CDDAPlay == spu.CDDAEnd) spu.CDDAPlay=spu.CDDAStart;
	65
	66	spu.spuMem[cursor] = 0;
	67	spu.spuMem[cursor + 0x400/2] = 0;
	68	cursor = (cursor + 1) & 0x1ff;
	69	}
	70	}
	71	spu.XALastVal = 0;
	72	}
	73
	74	INLINE void MixCD(int SSumLR, int RVB, int ns_to, int decode_pos)
	75	{
	76	int vll = spu.iLeftXAVol * spu.cdv.ll >> 7;
	77	int vrl = spu.iLeftXAVol * spu.cdv.rl >> 7;
	78	int vlr = spu.iRightXAVol * spu.cdv.lr >> 7;
	79	int vrr = spu.iRightXAVol * spu.cdv.rr >> 7;
	80	int cursor = decode_pos;
	81	int l1, r1, l, r;
	82	int ns;
	83	uint32_t v = spu.XALastVal;
	84
	85	// note: spu volume doesn't affect cd capture
	86	if ((spu.cdv.ll \| spu.cdv.lr \| spu.cdv.rl \| spu.cdv.rr) == 0)
	87	{
	88	SkipCD(ns_to, decode_pos);
	89	return;
	90	}
	91
	92	if(spu.XAPlay != spu.XAFeed \|\| spu.XARepeat > 0)
	93	{
	94	if(spu.XAPlay == spu.XAFeed)
	95	spu.XARepeat--;
	96
	97	for(ns = 0; ns < ns_to*2; ns += 2)
	98	{
	99	if(spu.XAPlay != spu.XAFeed) v=*spu.XAPlay++;
	100	if(spu.XAPlay == spu.XAEnd) spu.XAPlay=spu.XAStart;
	101
	102	l1 = (short)v, r1 = (short)(v >> 16);
	103	l = (l1 * vll + r1 * vrl) >> 15;
	104	r = (r1 * vrr + l1 * vlr) >> 15;
	105	ssat32_to_16(l);
	106	ssat32_to_16(r);
	107	if (spu.spuCtrl & CTRL_CD)
	108	{
	109	SSumLR[ns+0] += l;
	110	SSumLR[ns+1] += r;
	111	}
	112	if (unlikely(spu.spuCtrl & CTRL_CDREVERB))
	113	{
	114	RVB[ns+0] += l;
	115	RVB[ns+1] += r;
	116	}
	117
	118	spu.spuMem[cursor] = HTOLE16(v);
	119	spu.spuMem[cursor + 0x400/2] = HTOLE16(v >> 16);
	120	cursor = (cursor + 1) & 0x1ff;
	121	}
	122	spu.XALastVal = v;
	123	}
	124	// occasionally CDDAFeed underflows by a few samples due to poor timing,
	125	// hence this 'ns_to < 8'
	126	else if(spu.CDDAPlay != spu.CDDAFeed \|\| ns_to < 8)
	127	{
	128	for(ns = 0; ns < ns_to*2; ns += 2)
	129	{
	130	if(spu.CDDAPlay != spu.CDDAFeed) v=*spu.CDDAPlay++;
	131	if(spu.CDDAPlay == spu.CDDAEnd) spu.CDDAPlay=spu.CDDAStart;
	132
	133	l1 = (short)v, r1 = (short)(v >> 16);
	134	l = (l1 * vll + r1 * vrl) >> 15;
	135	r = (r1 * vrr + l1 * vlr) >> 15;
	136	ssat32_to_16(l);
	137	ssat32_to_16(r);
	138	if (spu.spuCtrl & CTRL_CD)
	139	{
	140	SSumLR[ns+0] += l;
	141	SSumLR[ns+1] += r;
	142	}
	143	if (unlikely(spu.spuCtrl & CTRL_CDREVERB))
	144	{
	145	RVB[ns+0] += l;
	146	RVB[ns+1] += r;
	147	}
	148
	149	spu.spuMem[cursor] = HTOLE16(v);
	150	spu.spuMem[cursor + 0x400/2] = HTOLE16(v >> 16);
	151	cursor = (cursor + 1) & 0x1ff;
	152	}
	153	spu.XALastVal = v;
	154	}
	155	else if (spu.cdClearSamples > 0)
	156	{
	157	for(ns = 0; ns < ns_to; ns++)
	158	{
	159	spu.spuMem[cursor] = spu.spuMem[cursor + 0x400/2] = 0;
	160	cursor = (cursor + 1) & 0x1ff;
	161	}
	162	spu.cdClearSamples -= ns_to;
	163	spu.XALastVal = 0;
	164	}
	165	}
	166
	167	////////////////////////////////////////////////////////////////////////
	168	// small linux time helper... only used for watchdog
	169	////////////////////////////////////////////////////////////////////////
	170
	171	#if 0
	172	static unsigned long timeGetTime_spu()
	173	{
	174	#if defined(NO_OS)
	175	return 0;
	176	#elif defined(_WIN32)
	177	return GetTickCount();
	178	#else
	179	struct timeval tv;
	180	gettimeofday(&tv, 0); // well, maybe there are better ways
	181	return tv.tv_sec * 1000 + tv.tv_usec/1000; // to do that, but at least it works
	182	#endif
	183	}
	184	#endif
	185
	186	////////////////////////////////////////////////////////////////////////
	187	// FEED XA
	188	////////////////////////////////////////////////////////////////////////
	189
	190	void FeedXA(const xa_decode_t *xap)
	191	{
	192	int sinc,spos,i,iSize,iPlace,vl,vr;
	193
	194	if(!spu.bSPUIsOpen) return;
	195
	196	spu.XARepeat = 3; // set up repeat
	197
	198	#if 0//def XA_HACK
	199	iSize=((45500*xap->nsamples)/xap->freq); // get size
	200	#else
	201	iSize=((44100*xap->nsamples)/xap->freq); // get size
	202	#endif
	203	if(!iSize) return; // none? bye
	204
	205	if(spu.XAFeed<spu.XAPlay) iPlace=spu.XAPlay-spu.XAFeed; // how much space in my buf?
	206	else iPlace=(spu.XAEnd-spu.XAFeed) + (spu.XAPlay-spu.XAStart);
	207
	208	if(iPlace==0) return; // no place at all
	209
	210	//----------------------------------------------------//
	211	#if 0
	212	if(spu_config.iXAPitch) // pitch change option?
	213	{
	214	static DWORD dwLT=0;
	215	static DWORD dwFPS=0;
	216	static int iFPSCnt=0;
	217	static int iLastSize=0;
	218	static DWORD dwL1=0;
	219	DWORD dw=timeGetTime_spu(),dw1,dw2;
	220
	221	iPlace=iSize;
	222
	223	dwFPS+=dw-dwLT;iFPSCnt++;
	224
	225	dwLT=dw;
	226
	227	if(iFPSCnt>=10)
	228	{
	229	if(!dwFPS) dwFPS=1;
	230	dw1=1000000/dwFPS;
	231	if(dw1>=(dwL1-100) && dw1<=(dwL1+100)) dw1=dwL1;
	232	else dwL1=dw1;
	233	dw2=(xap->freq*100/xap->nsamples);
	234	if((!dw1)\|\|((dw2+100)>=dw1)) iLastSize=0;
	235	else
	236	{
	237	iLastSize=iSize*dw2/dw1;
	238	if(iLastSize>iPlace) iLastSize=iPlace;
	239	iSize=iLastSize;
	240	}
	241	iFPSCnt=0;dwFPS=0;
	242	}
	243	else
	244	{
	245	if(iLastSize) iSize=iLastSize;
	246	}
	247	}
	248	#endif
	249	//----------------------------------------------------//
	250
	251	spos=0x10000L;
	252	sinc = (xap->nsamples << 16) / iSize; // calc freq by num / size
	253
	254	if(xap->stereo)
	255	{
	256	uint32_t * pS=(uint32_t *)xap->pcm;
	257	uint32_t l=0;
	258
	259	#if 0
	260	if(spu_config.iXAPitch)
	261	{
	262	int32_t l1,l2;short s;
	263	for(i=0;i<iSize;i++)
	264	{
	265	if(spu_config.iUseInterpolation==2)
	266	{
	267	while(spos>=0x10000L)
	268	{
	269	l = *pS++;
	270	gauss_window[gauss_ptr] = (short)LOWORD(l);
	271	gauss_window[4+gauss_ptr] = (short)HIWORD(l);
	272	gauss_ptr = (gauss_ptr+1) & 3;
	273	spos -= 0x10000L;
	274	}
	275	vl = (spos >> 6) & ~3;
	276	vr=(gauss[vl]*gvall0) >> 15;
	277	vr+=(gauss[vl+1]*gvall(1)) >> 15;
	278	vr+=(gauss[vl+2]*gvall(2)) >> 15;
	279	vr+=(gauss[vl+3]*gvall(3)) >> 15;
	280	l= vr & 0xffff;
	281	vr=(gauss[vl]*gvalr0) >> 15;
	282	vr+=(gauss[vl+1]*gvalr(1)) >> 15;
	283	vr+=(gauss[vl+2]*gvalr(2)) >> 15;
	284	vr+=(gauss[vl+3]*gvalr(3)) >> 15;
	285	l \|= vr << 16;
	286	}
	287	else
	288	{
	289	while(spos>=0x10000L)
	290	{
	291	l = *pS++;
	292	spos -= 0x10000L;
	293	}
	294	}
	295
	296	s=(short)LOWORD(l);
	297	l1=s;
	298	l1=(l1*iPlace)/iSize;
	299	ssat32_to_16(l1);
	300	s=(short)HIWORD(l);
	301	l2=s;
	302	l2=(l2*iPlace)/iSize;
	303	ssat32_to_16(l2);
	304	l=(l1&0xffff)\|(l2<<16);
	305
	306	*spu.XAFeed++=l;
	307
	308	if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
	309	if(spu.XAFeed==spu.XAPlay)
	310	{
	311	if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
	312	break;
	313	}
	314
	315	spos += sinc;
	316	}
	317	}
	318	else
	319	#endif
	320	{
	321	for(i=0;i<iSize;i++)
	322	{
	323	if(spu_config.iUseInterpolation==2)
	324	{
	325	while(spos>=0x10000L)
	326	{
	327	l = *pS++;
	328	gauss_window[gauss_ptr] = (short)LOWORD(l);
	329	gauss_window[4+gauss_ptr] = (short)HIWORD(l);
	330	gauss_ptr = (gauss_ptr+1) & 3;
	331	spos -= 0x10000L;
	332	}
	333	vl = (spos >> 6) & ~3;
	334	vr=(gauss[vl]*gvall0) >> 15;
	335	vr+=(gauss[vl+1]*gvall(1)) >> 15;
	336	vr+=(gauss[vl+2]*gvall(2)) >> 15;
	337	vr+=(gauss[vl+3]*gvall(3)) >> 15;
	338	l= vr & 0xffff;
	339	vr=(gauss[vl]*gvalr0) >> 15;
	340	vr+=(gauss[vl+1]*gvalr(1)) >> 15;
	341	vr+=(gauss[vl+2]*gvalr(2)) >> 15;
	342	vr+=(gauss[vl+3]*gvalr(3)) >> 15;
	343	l \|= vr << 16;
	344	}
	345	else
	346	{
	347	while(spos>=0x10000L)
	348	{
	349	l = *pS++;
	350	spos -= 0x10000L;
	351	}
	352	}
	353
	354	*spu.XAFeed++=l;
	355
	356	if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
	357	if(spu.XAFeed==spu.XAPlay)
	358	{
	359	if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
	360	break;
	361	}
	362
	363	spos += sinc;
	364	}
	365	}
	366	}
	367	else
	368	{
	369	unsigned short * pS=(unsigned short *)xap->pcm;
	370	uint32_t l;short s=0;
	371
	372	#if 0
	373	if(spu_config.iXAPitch)
	374	{
	375	int32_t l1;
	376	for(i=0;i<iSize;i++)
	377	{
	378	if(spu_config.iUseInterpolation==2)
	379	{
	380	while(spos>=0x10000L)
	381	{
	382	gauss_window[gauss_ptr] = (short)*pS++;
	383	gauss_ptr = (gauss_ptr+1) & 3;
	384	spos -= 0x10000L;
	385	}
	386	vl = (spos >> 6) & ~3;
	387	vr=(gauss[vl]*gvall0) >> 15;
	388	vr+=(gauss[vl+1]*gvall(1)) >> 15;
	389	vr+=(gauss[vl+2]*gvall(2)) >> 15;
	390	vr+=(gauss[vl+3]*gvall(3)) >> 15;
	391	l1=s= vr;
	392	l1 &= 0xffff;
	393	}
	394	else
	395	{
	396	while(spos>=0x10000L)
	397	{
	398	s = *pS++;
	399	spos -= 0x10000L;
	400	}
	401	l1=s;
	402	}
	403
	404	l1=(l1*iPlace)/iSize;
	405	ssat32_to_16(l1);
	406	l=(l1&0xffff)\|(l1<<16);
	407	*spu.XAFeed++=l;
	408
	409	if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
	410	if(spu.XAFeed==spu.XAPlay)
	411	{
	412	if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
	413	break;
	414	}
	415
	416	spos += sinc;
	417	}
	418	}
	419	else
	420	#endif
	421	{
	422	for(i=0;i<iSize;i++)
	423	{
	424	if(spu_config.iUseInterpolation==2)
	425	{
	426	while(spos>=0x10000L)
	427	{
	428	gauss_window[gauss_ptr] = (short)*pS++;
	429	gauss_ptr = (gauss_ptr+1) & 3;
	430	spos -= 0x10000L;
	431	}
	432	vl = (spos >> 6) & ~3;
	433	vr=(gauss[vl]*gvall0) >> 15;
	434	vr+=(gauss[vl+1]*gvall(1)) >> 15;
	435	vr+=(gauss[vl+2]*gvall(2)) >> 15;
	436	vr+=(gauss[vl+3]*gvall(3)) >> 15;
	437	l=s= vr;
	438	}
	439	else
	440	{
	441	while(spos>=0x10000L)
	442	{
	443	s = *pS++;
	444	spos -= 0x10000L;
	445	}
	446	l=s;
	447	}
	448
	449	l &= 0xffff;
	450	*spu.XAFeed++=(l\|(l<<16));
	451
	452	if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
	453	if(spu.XAFeed==spu.XAPlay)
	454	{
	455	if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
	456	break;
	457	}
	458
	459	spos += sinc;
	460	}
	461	}
	462	}
	463	}
	464
	465	////////////////////////////////////////////////////////////////////////
	466	// FEED CDDA
	467	////////////////////////////////////////////////////////////////////////
	468
	469	void FeedCDDA(unsigned char *pcm, int nBytes)
	470	{
	471	int space;
	472	space=(spu.CDDAPlay-spu.CDDAFeed-1)*4 & (CDDA_BUFFER_SIZE - 1);
	473	if (space < nBytes) {
	474	log_unhandled("FeedCDDA: %d/%d\n", nBytes, space);
	475	return;
	476	}
	477
	478	while(nBytes>0)
	479	{
	480	if(spu.CDDAFeed==spu.CDDAEnd) spu.CDDAFeed=spu.CDDAStart;
	481	space=(spu.CDDAPlay-spu.CDDAFeed-1)*4 & (CDDA_BUFFER_SIZE - 1);
	482	if(spu.CDDAFeed+space/4>spu.CDDAEnd)
	483	space=(spu.CDDAEnd-spu.CDDAFeed)*4;
	484	if(space>nBytes)
	485	space=nBytes;
	486
	487	memcpy(spu.CDDAFeed,pcm,space);
	488	spu.CDDAFeed+=space/4;
	489	nBytes-=space;
	490	pcm+=space;
	491	}
	492	}
	493
	494	#endif
	495	// vim:shiftwidth=1:expandtab