usbjoy fix

[fceu.git] / sound.c

diff --git a/sound.c b/sound.c
index 7e130fa..bb3c89d 100644 (file)
--- a/sound.c
+++ b/sound.c
@@ -869,28 +869,27 @@ void SetNESSoundMap(void)
   SetReadHandler(0x4015,0x4015,Read_PSG);
 }
 
-static int32 WaveNSF[2048];
-
 int32 highp;                   // 0 through 65536, 0 = no high pass, 65536 = max high pass
 
 int32 lowp;                    // 0 through 65536, 65536 = max low pass(total attenuation)
                                // 65536 = no low pass
+static int32 flt_acc=0, flt_acc2=0;
+
 static void FilterSound(uint32 *in, int16 *outMono, int count)
 {
- static int32 acc=0, acc2=0;
 // static int min=0, max=0;
 
  for(;count;count--,in++,outMono++)
  {
   int32 diff;
 
-  diff = *in - acc;
+  diff = *in - flt_acc;
 
-  acc += (diff*highp)>>16;
-  acc2+= (int32) (((int64)((diff-acc2)*lowp))>>16);
+  flt_acc += (diff*highp)>>16;
+  flt_acc2+= (int32) (((int64)((diff-flt_acc2)*lowp))>>16);
   *in=0;
 
-  *outMono = acc2*7 >> 2; // * 1.75
+  *outMono = flt_acc2*7 >> 2; // * 1.75
 //  if (acc2 < min) { printf("min: %i %04x\n", acc2, acc2); min = acc2; }
 //  if (acc2 > max) { printf("max: %i %04x\n", acc2, acc2); max = acc2; }
  }
@@ -923,17 +922,6 @@ int FlushEmulateSound(void)
    GameExpSound.Fill(end&0xF);
 
   FilterSound(Wave,WaveFinalMono,end>>4);
-//  printf("count %d, num ints %d\n", end, (end >> 4));
-  if(FCEUGameInfo.type==GIT_NSF)
-  {
-   int x;//,s=0,si=end/1024;
-   for(x=0;x<1024;x++)
-   {
-    //WaveNSF[x]=WaveFinal[s>>4];
-    WaveNSF[x]=WaveFinalMono[x];
-    //s+=si;
-   }
-  }
 
   if(end&0xF)
    Wave[0]=Wave[(end>>4)];
@@ -948,9 +936,9 @@ int FlushEmulateSound(void)
   return(end);
 }
 
-int GetSoundBuffer(int32 **W)
+int GetSoundBuffer(int16 **W)
 {
- *W=WaveNSF;
+ *W=WaveFinalMono;
  return inbuf;
 }
 
@@ -1029,6 +1017,8 @@ void SetSoundVariables(void)
 
   if(highp>(1<<16)) highp=1<<16;
   if(lowp>(1<<16)) lowp=1<<16;
+
+  flt_acc=flt_acc2=0;
 }
 
 void FixOldSaveStateSFreq(void)