[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
  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
ef79bbde P	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"
b71a957f	19	#include "spu.h"
ef79bbde P	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
ef79bbde P	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
740eb9bc	42	INLINE void SkipCD(int ns_to, int decode_pos)
ef79bbde	43	{
215ff9e6	44	int cursor = decode_pos;
ef79bbde	45	int ns;
740eb9bc	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;
b3ddf04a	83	uint32_t v = spu.XALastVal;
ef79bbde	84
5ccf556f	85	// note: spu volume doesn't affect cd capture
5ccf556f	86	if ((spu.cdv.ll \| spu.cdv.lr \| spu.cdv.rl \| spu.cdv.rr) == 0)
740eb9bc	87	{
	88	SkipCD(ns_to, decode_pos);
	89	return;
	90	}
	91
3154bfab	92	if(spu.XAPlay != spu.XAFeed \|\| spu.XARepeat > 0)
efce366c	93	{
3154bfab	94	if(spu.XAPlay == spu.XAFeed)
3154bfab	95	spu.XARepeat--;
efce366c	96
e81f182d	97	for(ns = 0; ns < ns_to*2; ns += 2)
efce366c	98	{
3154bfab	99	if(spu.XAPlay != spu.XAFeed) v=*spu.XAPlay++;
3154bfab	100	if(spu.XAPlay == spu.XAEnd) spu.XAPlay=spu.XAStart;
efce366c	101
740eb9bc	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);
e81f182d	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	}
1d753163	117
b71a957f PC	118	spu.spuMem[cursor] = HTOLE16(v);
b71a957f PC	119	spu.spuMem[cursor + 0x400/2] = HTOLE16(v >> 16);
efce366c	120	cursor = (cursor + 1) & 0x1ff;
efce366c	121	}
3154bfab	122	spu.XALastVal = v;
efce366c	123	}
b3ddf04a	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	{
e81f182d	128	for(ns = 0; ns < ns_to*2; ns += 2)
b3ddf04a	129	{
	130	if(spu.CDDAPlay != spu.CDDAFeed) v=*spu.CDDAPlay++;
	131	if(spu.CDDAPlay == spu.CDDAEnd) spu.CDDAPlay=spu.CDDAStart;
ef79bbde	132
740eb9bc	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);
e81f182d	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	}
1d753163	148
b71a957f PC	149	spu.spuMem[cursor] = HTOLE16(v);
b71a957f PC	150	spu.spuMem[cursor + 0x400/2] = HTOLE16(v >> 16);
b3ddf04a	151	cursor = (cursor + 1) & 0x1ff;
	152	}
	153	spu.XALastVal = v;
	154	}
	155	else
	156	spu.XALastVal = 0;
ef79bbde P	157	}
	158
	159	////////////////////////////////////////////////////////////////////////
	160	// small linux time helper... only used for watchdog
	161	////////////////////////////////////////////////////////////////////////
	162
db3bfe5c	163	#if 0
f05d6ca2	164	static unsigned long timeGetTime_spu()
ef79bbde	165	{
de4a0279	166	#if defined(NO_OS)
	167	return 0;
	168	#elif defined(_WIN32)
003cfc63	169	return GetTickCount();
003cfc63	170	#else
ef79bbde P	171	struct timeval tv;
	172	gettimeofday(&tv, 0); // well, maybe there are better ways
	173	return tv.tv_sec * 1000 + tv.tv_usec/1000; // to do that, but at least it works
003cfc63	174	#endif
ef79bbde	175	}
db3bfe5c	176	#endif
ef79bbde P	177
	178	////////////////////////////////////////////////////////////////////////
	179	// FEED XA
	180	////////////////////////////////////////////////////////////////////////
	181
403a6290	182	void FeedXA(const xa_decode_t *xap)
ef79bbde P	183	{
	184	int sinc,spos,i,iSize,iPlace,vl,vr;
	185
3154bfab	186	if(!spu.bSPUIsOpen) return;
ef79bbde	187
cdaef86c	188	spu.XARepeat = 3; // set up repeat
ef79bbde	189
97ea4077	190	#if 0//def XA_HACK
ef79bbde P	191	iSize=((45500*xap->nsamples)/xap->freq); // get size
	192	#else
	193	iSize=((44100*xap->nsamples)/xap->freq); // get size
	194	#endif
	195	if(!iSize) return; // none? bye
	196
3154bfab	197	if(spu.XAFeed<spu.XAPlay) iPlace=spu.XAPlay-spu.XAFeed; // how much space in my buf?
3154bfab	198	else iPlace=(spu.XAEnd-spu.XAFeed) + (spu.XAPlay-spu.XAStart);
ef79bbde P	199
	200	if(iPlace==0) return; // no place at all
	201
	202	//----------------------------------------------------//
db3bfe5c	203	#if 0
3154bfab	204	if(spu_config.iXAPitch) // pitch change option?
ef79bbde P	205	{
	206	static DWORD dwLT=0;
	207	static DWORD dwFPS=0;
	208	static int iFPSCnt=0;
	209	static int iLastSize=0;
	210	static DWORD dwL1=0;
	211	DWORD dw=timeGetTime_spu(),dw1,dw2;
	212
	213	iPlace=iSize;
	214
	215	dwFPS+=dw-dwLT;iFPSCnt++;
	216
	217	dwLT=dw;
	218
	219	if(iFPSCnt>=10)
	220	{
	221	if(!dwFPS) dwFPS=1;
	222	dw1=1000000/dwFPS;
	223	if(dw1>=(dwL1-100) && dw1<=(dwL1+100)) dw1=dwL1;
	224	else dwL1=dw1;
	225	dw2=(xap->freq*100/xap->nsamples);
	226	if((!dw1)\|\|((dw2+100)>=dw1)) iLastSize=0;
	227	else
	228	{
	229	iLastSize=iSize*dw2/dw1;
	230	if(iLastSize>iPlace) iLastSize=iPlace;
	231	iSize=iLastSize;
	232	}
	233	iFPSCnt=0;dwFPS=0;
	234	}
	235	else
	236	{
	237	if(iLastSize) iSize=iLastSize;
	238	}
	239	}
db3bfe5c	240	#endif
ef79bbde P	241	//----------------------------------------------------//
	242
	243	spos=0x10000L;
	244	sinc = (xap->nsamples << 16) / iSize; // calc freq by num / size
	245
	246	if(xap->stereo)
	247	{
	248	uint32_t * pS=(uint32_t *)xap->pcm;
	249	uint32_t l=0;
	250
db3bfe5c	251	#if 0
3154bfab	252	if(spu_config.iXAPitch)
ef79bbde P	253	{
	254	int32_t l1,l2;short s;
	255	for(i=0;i<iSize;i++)
	256	{
3154bfab	257	if(spu_config.iUseInterpolation==2)
ef79bbde P	258	{
	259	while(spos>=0x10000L)
	260	{
	261	l = *pS++;
	262	gauss_window[gauss_ptr] = (short)LOWORD(l);
	263	gauss_window[4+gauss_ptr] = (short)HIWORD(l);
	264	gauss_ptr = (gauss_ptr+1) & 3;
	265	spos -= 0x10000L;
	266	}
	267	vl = (spos >> 6) & ~3;
63646208 S	268	vr=(gauss[vl]*gvall0) >> 15;
	269	vr+=(gauss[vl+1]*gvall(1)) >> 15;
	270	vr+=(gauss[vl+2]*gvall(2)) >> 15;
	271	vr+=(gauss[vl+3]*gvall(3)) >> 15;
	272	l= vr & 0xffff;
	273	vr=(gauss[vl]*gvalr0) >> 15;
	274	vr+=(gauss[vl+1]*gvalr(1)) >> 15;
	275	vr+=(gauss[vl+2]*gvalr(2)) >> 15;
	276	vr+=(gauss[vl+3]*gvalr(3)) >> 15;
	277	l \|= vr << 16;
ef79bbde P	278	}
	279	else
	280	{
	281	while(spos>=0x10000L)
	282	{
	283	l = *pS++;
	284	spos -= 0x10000L;
	285	}
	286	}
	287
	288	s=(short)LOWORD(l);
	289	l1=s;
	290	l1=(l1*iPlace)/iSize;
381ea103	291	ssat32_to_16(l1);
ef79bbde P	292	s=(short)HIWORD(l);
	293	l2=s;
	294	l2=(l2*iPlace)/iSize;
381ea103	295	ssat32_to_16(l2);
ef79bbde P	296	l=(l1&0xffff)\|(l2<<16);
ef79bbde P	297
3154bfab	298	*spu.XAFeed++=l;
ef79bbde	299
3154bfab	300	if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
3154bfab	301	if(spu.XAFeed==spu.XAPlay)
ef79bbde	302	{
3154bfab	303	if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
ef79bbde P	304	break;
	305	}
	306
	307	spos += sinc;
	308	}
	309	}
	310	else
db3bfe5c	311	#endif
ef79bbde P	312	{
	313	for(i=0;i<iSize;i++)
	314	{
3154bfab	315	if(spu_config.iUseInterpolation==2)
ef79bbde P	316	{
	317	while(spos>=0x10000L)
	318	{
	319	l = *pS++;
	320	gauss_window[gauss_ptr] = (short)LOWORD(l);
	321	gauss_window[4+gauss_ptr] = (short)HIWORD(l);
	322	gauss_ptr = (gauss_ptr+1) & 3;
	323	spos -= 0x10000L;
	324	}
	325	vl = (spos >> 6) & ~3;
63646208 S	326	vr=(gauss[vl]*gvall0) >> 15;
	327	vr+=(gauss[vl+1]*gvall(1)) >> 15;
	328	vr+=(gauss[vl+2]*gvall(2)) >> 15;
	329	vr+=(gauss[vl+3]*gvall(3)) >> 15;
	330	l= vr & 0xffff;
	331	vr=(gauss[vl]*gvalr0) >> 15;
	332	vr+=(gauss[vl+1]*gvalr(1)) >> 15;
	333	vr+=(gauss[vl+2]*gvalr(2)) >> 15;
	334	vr+=(gauss[vl+3]*gvalr(3)) >> 15;
	335	l \|= vr << 16;
ef79bbde P	336	}
	337	else
	338	{
	339	while(spos>=0x10000L)
	340	{
	341	l = *pS++;
	342	spos -= 0x10000L;
	343	}
	344	}
	345
3154bfab	346	*spu.XAFeed++=l;
ef79bbde	347
3154bfab	348	if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
3154bfab	349	if(spu.XAFeed==spu.XAPlay)
ef79bbde	350	{
3154bfab	351	if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
ef79bbde P	352	break;
	353	}
	354
	355	spos += sinc;
	356	}
	357	}
	358	}
	359	else
	360	{
	361	unsigned short * pS=(unsigned short *)xap->pcm;
	362	uint32_t l;short s=0;
	363
db3bfe5c	364	#if 0
3154bfab	365	if(spu_config.iXAPitch)
ef79bbde P	366	{
	367	int32_t l1;
	368	for(i=0;i<iSize;i++)
	369	{
3154bfab	370	if(spu_config.iUseInterpolation==2)
ef79bbde P	371	{
	372	while(spos>=0x10000L)
	373	{
	374	gauss_window[gauss_ptr] = (short)*pS++;
	375	gauss_ptr = (gauss_ptr+1) & 3;
	376	spos -= 0x10000L;
	377	}
	378	vl = (spos >> 6) & ~3;
63646208 S	379	vr=(gauss[vl]*gvall0) >> 15;
	380	vr+=(gauss[vl+1]*gvall(1)) >> 15;
	381	vr+=(gauss[vl+2]*gvall(2)) >> 15;
	382	vr+=(gauss[vl+3]*gvall(3)) >> 15;
	383	l1=s= vr;
ef79bbde P	384	l1 &= 0xffff;
	385	}
	386	else
	387	{
	388	while(spos>=0x10000L)
	389	{
	390	s = *pS++;
	391	spos -= 0x10000L;
	392	}
	393	l1=s;
	394	}
	395
	396	l1=(l1*iPlace)/iSize;
381ea103	397	ssat32_to_16(l1);
ef79bbde	398	l=(l1&0xffff)\|(l1<<16);
3154bfab	399	*spu.XAFeed++=l;
ef79bbde	400
3154bfab	401	if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
3154bfab	402	if(spu.XAFeed==spu.XAPlay)
ef79bbde	403	{
3154bfab	404	if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
ef79bbde P	405	break;
	406	}
	407
	408	spos += sinc;
	409	}
	410	}
	411	else
db3bfe5c	412	#endif
ef79bbde P	413	{
	414	for(i=0;i<iSize;i++)
	415	{
3154bfab	416	if(spu_config.iUseInterpolation==2)
ef79bbde P	417	{
	418	while(spos>=0x10000L)
	419	{
	420	gauss_window[gauss_ptr] = (short)*pS++;
	421	gauss_ptr = (gauss_ptr+1) & 3;
	422	spos -= 0x10000L;
	423	}
	424	vl = (spos >> 6) & ~3;
63646208 S	425	vr=(gauss[vl]*gvall0) >> 15;
	426	vr+=(gauss[vl+1]*gvall(1)) >> 15;
	427	vr+=(gauss[vl+2]*gvall(2)) >> 15;
	428	vr+=(gauss[vl+3]*gvall(3)) >> 15;
	429	l=s= vr;
ef79bbde P	430	}
	431	else
	432	{
	433	while(spos>=0x10000L)
	434	{
	435	s = *pS++;
	436	spos -= 0x10000L;
	437	}
	438	l=s;
	439	}
	440
9098b863	441	l &= 0xffff;
3154bfab	442	*spu.XAFeed++=(l\|(l<<16));
ef79bbde	443
3154bfab	444	if(spu.XAFeed==spu.XAEnd) spu.XAFeed=spu.XAStart;
3154bfab	445	if(spu.XAFeed==spu.XAPlay)
ef79bbde	446	{
3154bfab	447	if(spu.XAPlay!=spu.XAStart) spu.XAFeed=spu.XAPlay-1;
ef79bbde P	448	break;
	449	}
	450
	451	spos += sinc;
	452	}
	453	}
	454	}
	455	}
	456
	457	////////////////////////////////////////////////////////////////////////
	458	// FEED CDDA
	459	////////////////////////////////////////////////////////////////////////
	460
403a6290	461	void FeedCDDA(unsigned char *pcm, int nBytes)
ef79bbde	462	{
983a7cfd	463	int space;
3154bfab	464	space=(spu.CDDAPlay-spu.CDDAFeed-1)*4 & (CDDA_BUFFER_SIZE - 1);
6109649c	465	if (space < nBytes) {
6109649c	466	log_unhandled("FeedCDDA: %d/%d\n", nBytes, space);
403a6290	467	return;
6109649c	468	}
983a7cfd	469
ef79bbde P	470	while(nBytes>0)
ef79bbde P	471	{
3154bfab	472	if(spu.CDDAFeed==spu.CDDAEnd) spu.CDDAFeed=spu.CDDAStart;
	473	space=(spu.CDDAPlay-spu.CDDAFeed-1)*4 & (CDDA_BUFFER_SIZE - 1);
	474	if(spu.CDDAFeed+space/4>spu.CDDAEnd)
	475	space=(spu.CDDAEnd-spu.CDDAFeed)*4;
983a7cfd	476	if(space>nBytes)
	477	space=nBytes;
	478
3154bfab	479	memcpy(spu.CDDAFeed,pcm,space);
3154bfab	480	spu.CDDAFeed+=space/4;
983a7cfd	481	nBytes-=space;
983a7cfd	482	pcm+=space;
ef79bbde P	483	}
	484	}
	485
	486	#endif
e81f182d	487	// vim:shiftwidth=1:expandtab