X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=plugins%2Fdfsound%2Fxa.c;h=c416d19a72adfc2cb47240a47f10e1381990e533;hb=b9db55a9831ccbe3749abfc97ff49e5fb9379b29;hp=704847b4d9343e93ee4cbe0c7ca10c96bd209854;hpb=7931825ed8ef51dab3e37475d8126103ebc9fb6f;p=pcsx_rearmed.git

diff --git a/plugins/dfsound/xa.c b/plugins/dfsound/xa.c
index 704847b4..c416d19a 100644
--- a/plugins/dfsound/xa.c
+++ b/plugins/dfsound/xa.c
@@ -38,19 +38,18 @@ static int gauss_window[8] = {0, 0, 0, 0, 0, 0, 0, 0};
 // MIX XA & CDDA
 ////////////////////////////////////////////////////////////////////////
 
-INLINE void MixXA(int ns_to)
+INLINE void MixXA(int *SSumLR, int ns_to, int decode_pos)
 {
+ int cursor = decode_pos;
  int ns;
  short l, r;
- uint32_t v;
- int cursor = spu.decode_pos;
+ uint32_t v = spu.XALastVal;
 
  if(spu.XAPlay != spu.XAFeed || spu.XARepeat > 0)
  {
   if(spu.XAPlay == spu.XAFeed)
    spu.XARepeat--;
 
-  v = spu.XALastVal;
   for(ns = 0; ns < ns_to*2; )
    {
     if(spu.XAPlay != spu.XAFeed) v=*spu.XAPlay++;
@@ -67,21 +66,28 @@ INLINE void MixXA(int ns_to)
    }
   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;
 
- for(ns = 0; ns < ns_to * 2 && spu.CDDAPlay!=spu.CDDAFeed && (spu.CDDAPlay!=spu.CDDAEnd-1||spu.CDDAFeed!=spu.CDDAStart);)
-  {
-   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;
+    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.spuMem[cursor] = v;
+    spu.spuMem[cursor + 0x400/2] = v >> 16;
+    cursor = (cursor + 1) & 0x1ff;
+   }
+  spu.XALastVal = v;
+ }
+ else
+  spu.XALastVal = 0;
 }
 
 ////////////////////////////////////////////////////////////////////////
@@ -90,9 +96,15 @@ INLINE void MixXA(int ns_to)
 
 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
 }
 
 ////////////////////////////////////////////////////////////////////////
@@ -183,16 +195,16 @@ INLINE void FeedXA(xa_decode_t *xap)
            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;
+         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
         {
@@ -240,16 +252,16 @@ INLINE void FeedXA(xa_decode_t *xap)
            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;
+         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
         {
@@ -292,11 +304,11 @@ INLINE void FeedXA(xa_decode_t *xap)
            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;
+         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
@@ -337,11 +349,11 @@ INLINE void FeedXA(xa_decode_t *xap)
            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;
+         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
         {