diff options
Diffstat (limited to 'plugins/dfsound/xa.c')
| -rw-r--r-- | plugins/dfsound/xa.c | 98 |
1 files changed, 36 insertions, 62 deletions
diff --git a/plugins/dfsound/xa.c b/plugins/dfsound/xa.c index 135bc918..fe3aee55 100644 --- a/plugins/dfsound/xa.c +++ b/plugins/dfsound/xa.c @@ -69,6 +69,9 @@ s32 lc = (spsound[i ] * attenuators.val0 + spsound[i+1] * attenuators.val3]) / 1 s32 rc = (spsound[i+1] * attenuators.val2 + spsound[i ] * attenuators.val1]) / 128;
*/
+static int lastxa_lc, lastxa_rc;
+static int lastcd_lc, lastcd_rc;
+
INLINE void MixXA(void) { int ns;
@@ -104,6 +107,11 @@ INLINE void MixXA(void) SSumL[ns]+=lc;
SSumR[ns]+=rc;
+ // improve crackle - buffer under
+ // - not update fast enough
+ lastxa_lc = lc;
+ lastxa_rc = rc;
+
// Tales of Phantasia - voice meter
if( cdxa_dbuf_ptr >= 0x800 )
@@ -114,18 +122,18 @@ INLINE void MixXA(void) if(XAPlay==XAFeed && XARepeat)
{
- XARepeat--;
+ //XARepeat--;
for(;ns<NSSIZE;ns++)
{
- SSumL[ns]+=lc;
- SSumR[ns]+=rc;
+ SSumL[ns]+=lastxa_rc;
+ SSumR[ns]+=lastxa_rc;
// Tales of Phantasia - voice meter
if( cdxa_dbuf_ptr >= 0x800 )
cdxa_dbuf_ptr = 0;
- spuMem[ cdxa_dbuf_ptr++ ] = lc;
- spuMem[ cdxa_dbuf_ptr++ ] = rc;
+ spuMem[ cdxa_dbuf_ptr++ ] = lastxa_rc;
+ spuMem[ cdxa_dbuf_ptr++ ] = lastxa_rc;
}
}
@@ -147,7 +155,23 @@ INLINE void MixXA(void) SSumL[ns]+=lc;
SSumR[ns]+=rc;
- } +
+ // improve crackle - buffer under
+ // - not update fast enough
+ lastcd_lc = lc;
+ lastcd_rc = rc;
+ }
+
+
+ if(CDDAPlay==CDDAFeed && XARepeat)
+ {
+ //XARepeat--;
+ for(;ns<NSSIZE;ns++)
+ {
+ SSumL[ns]+=lastcd_lc;
+ SSumR[ns]+=lastcd_rc;
+ }
+ }
} //////////////////////////////////////////////////////////////////////// @@ -242,35 +266,10 @@ INLINE void FeedXA(xa_decode_t *xap) int32_t l1,l2;short s; for(i=0;i<iSize;i++) { - if(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) { - while(spos>=0x10000L) - { - l = *pS++; - spos -= 0x10000L; - } + l = *pS++; + spos -= 0x10000L; } s=(short)LOWORD(l); @@ -301,35 +300,10 @@ INLINE void FeedXA(xa_decode_t *xap) { for(i=0;i<iSize;i++) { - if(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) { - while(spos>=0x10000L) - { - l = *pS++; - spos -= 0x10000L; - } + l = *pS++; + spos -= 0x10000L; } *XAFeed++=l; |