dfsound: backport fixes from pcsxr

shalma:
- Align start addresses to 16-bytes
- (Hopkat) registers.c - External loop address align to 16 bytes
- SoundOff prevents new channel from starting
- fixes Jungle Book (buzzing loop hangs)

2 files changed, 19 insertions, 5 deletions

diff --git a/plugins/dfsound/registers.c b/plugins/dfsound/registers.c
index b684914..5ab519b 100644
--- a/plugins/dfsound/registers.c
+++ b/plugins/dfsound/registers.c
@@ -70,7 +70,8 @@ void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val)
        break;

      //------------------------------------------------// start

      case 6:      

-       s_chan[ch].pStart=spuMemC+((unsigned long) val<<3);

+       // Brain Dead 13 - align to 16 boundary

+       s_chan[ch].pStart= spuMemC+(unsigned long)((val<<3)&~0xf);

        break;

      //------------------------------------------------// level with pre-calcs

      case 8:

@@ -162,7 +163,7 @@ void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val)
      //------------------------------------------------//

      case 14:                                          // loop?

        //WaitForSingleObject(s_chan[ch].hMutex,2000);        // -> no multithread fuckups

-       s_chan[ch].pLoop=spuMemC+((unsigned long) val<<3);

+       s_chan[ch].pLoop=spuMemC+((unsigned long)((val<<3)&~0xf));

        s_chan[ch].bIgnoreLoop=1;

        //ReleaseMutex(s_chan[ch].hMutex);                    // -> oki, on with the thread

        break;

@@ -424,6 +425,13 @@ void SoundOn(int start,int end,unsigned short val)     // SOUND ON PSX COMAND
     {

      s_chan[ch].bIgnoreLoop=0;

      s_chan[ch].bNew=1;

+

+     // do this here, not in StartSound

+     // - fixes fussy timing issues

+     s_chan[ch].bStop=0;

+     s_chan[ch].bOn=1;

+     s_chan[ch].pCurr=s_chan[ch].pStart;

+

      dwNewChannel|=(1<<ch);                            // bitfield for faster testing

     }

   }

@@ -441,6 +449,11 @@ void SoundOff(int start,int end,unsigned short val)    // SOUND OFF PSX COMMAND
    if(val&1)                                           // && s_chan[i].bOn)  mmm...

     {

      s_chan[ch].bStop=1;

+

+     // Jungle Book - Rhythm 'n Groove

+     // - turns off buzzing sound (loop hangs)

+     s_chan[ch].bNew=0;

+     dwNewChannel &= ~(1<<ch);

     }                                                  

   }

 }

diff --git a/plugins/dfsound/spu.c b/plugins/dfsound/spu.c
index 7e6cfb2..8936e45 100644
--- a/plugins/dfsound/spu.c
+++ b/plugins/dfsound/spu.c
@@ -245,15 +245,16 @@ INLINE void StartSound(int ch)
  StartADSR(ch);
  StartREVERB(ch);
 
- s_chan[ch].pCurr=s_chan[ch].pStart;                   // set sample start
+ // fussy timing issues - do in VoiceOn
+ //s_chan[ch].pCurr=s_chan[ch].pStart;                   // set sample start
+ //s_chan[ch].bStop=0;
+ //s_chan[ch].bOn=1;
 
  s_chan[ch].s_1=0;                                     // init mixing vars
  s_chan[ch].s_2=0;
  s_chan[ch].iSBPos=28;
 
  s_chan[ch].bNew=0;                                    // init channel flags
- s_chan[ch].bStop=0;
- s_chan[ch].bOn=1;
 
  s_chan[ch].SB[29]=0;                                  // init our interpolation helpers
  s_chan[ch].SB[30]=0;