1 files changed, 0 insertions, 157 deletions
diff --git a/plugins/ao/eng_ssf/scsplfo.c b/plugins/ao/eng_ssf/scsplfo.c
deleted file mode 100644
index 0a8281c1..00000000
--- a/plugins/ao/eng_ssf/scsplfo.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
-	SCSP LFO handling
-
-	Part of the SCSP (YMF292-F) emulator package.
-	(not compiled directly, #included from scsp.c)
-
-	By ElSemi
-	MAME/M1 conversion and cleanup by R. Belmont
-*/
-
-#define LFO_SHIFT 	8
-
-struct _LFO
-{
-    unsigned short phase;
-    UINT32 phase_step;
-    int *table;
-    int *scale;
-};
-
-#define LFIX(v)	((unsigned int) ((float) (1<<LFO_SHIFT)*(v)))
-
-//Convert DB to multiply amplitude
-#define DB(v) 	LFIX(pow(10.0,v/20.0))
-
-//Convert cents to step increment
-#define CENTS(v) LFIX(pow(2.0,v/1200.0))
-
-static int PLFO_TRI[256],PLFO_SQR[256],PLFO_SAW[256],PLFO_NOI[256];
-static int ALFO_TRI[256],ALFO_SQR[256],ALFO_SAW[256],ALFO_NOI[256];
-static float LFOFreq[32]={0.17,0.19,0.23,0.27,0.34,0.39,0.45,0.55,0.68,0.78,0.92,1.10,1.39,1.60,1.87,2.27,
-			  2.87,3.31,3.92,4.79,6.15,7.18,8.60,10.8,14.4,17.2,21.5,28.7,43.1,57.4,86.1,172.3};
-static float ASCALE[8]={0.0,0.4,0.8,1.5,3.0,6.0,12.0,24.0};
-static float PSCALE[8]={0.0,7.0,13.5,27.0,55.0,112.0,230.0,494};
-static int PSCALES[8][256];
-static int ASCALES[8][256];
-
-void LFO_Init(void)
-{
-    int i,s;
-    for(i=0;i<256;++i)
-    {
-		int a,p;
-//		float TL;
-		//Saw
-		a=255-i;
-		if(i<128)
-			p=i;
-		else
-			p=i-256;    
-		ALFO_SAW[i]=a;
-		PLFO_SAW[i]=p;
-	
-		//Square
-		if(i<128)
-		{
-			a=255;
-			p=127;
-		}
-		else
-		{
-			a=0;
-			p=-128;
-		}
-		ALFO_SQR[i]=a;
-		PLFO_SQR[i]=p;
-	
-		//Tri
-		if(i<128)
-			a=255-(i*2);
-		else
-			a=(i*2)-256;
-		if(i<64)
-			p=i*2;
-		else if(i<128)
-			p=255-i*2;
-		else if(i<192)
-			p=256-i*2;
-		else
-			p=i*2-511;
-		ALFO_TRI[i]=a;
-		PLFO_TRI[i]=p;
-	
-		//noise
-		//a=lfo_noise[i];
-		a=rand()&0xff;
-		p=128-a;
-		ALFO_NOI[i]=a;
-		PLFO_NOI[i]=p;
-    }
-
-	for(s=0;s<8;++s)
-	{
-		float limit=PSCALE[s];
-		for(i=-128;i<128;++i)
-		{
-			PSCALES[s][i+128]=CENTS(((limit*(float) i)/128.0));
-		}
-		limit=-ASCALE[s];
-		for(i=0;i<256;++i)
-		{
-			ASCALES[s][i]=DB(((limit*(float) i)/256.0));
-		}
-	}
-}
-
-static signed int INLINE PLFO_Step(struct _LFO *LFO)
-{
-	int p;
-    LFO->phase+=LFO->phase_step;    
-#if LFO_SHIFT!=8    
-    LFO->phase&=(1<<(LFO_SHIFT+8))-1;
-#endif    
-    p=LFO->table[LFO->phase>>LFO_SHIFT];
-	p=LFO->scale[p+128];
-	return p<<(SHIFT-LFO_SHIFT);
-}
-
-static signed int INLINE ALFO_Step(struct _LFO *LFO)
-{
-	int p;
-    LFO->phase+=LFO->phase_step;    
-#if LFO_SHIFT!=8    
-    LFO->phase&=(1<<(LFO_SHIFT+8))-1;
-#endif    
-    p=LFO->table[LFO->phase>>LFO_SHIFT];
-	p=LFO->scale[p];
-	return p<<(SHIFT-LFO_SHIFT);
-}
-
-void LFO_ComputeStep(struct _LFO *LFO,UINT32 LFOF,UINT32 LFOWS,UINT32 LFOS,int ALFO)
-{
-    float step=(float) LFOFreq[LFOF]*256.0/(float)44100.0;
-    LFO->phase_step=(unsigned int) ((float) (1<<LFO_SHIFT)*step);
-    if(ALFO)
-    {
-		switch(LFOWS)
-		{
-			case 0: LFO->table=ALFO_SAW; break;
-			case 1: LFO->table=ALFO_SQR; break;
-			case 2: LFO->table=ALFO_TRI; break;
-			case 3: LFO->table=ALFO_NOI; break;
-		}
-		LFO->scale=ASCALES[LFOS];
-	}
-	else
-	{
-		switch(LFOWS)
-		{
-		    case 0: LFO->table=PLFO_SAW; break;
-		    case 1: LFO->table=PLFO_SQR; break;
-			case 2: LFO->table=PLFO_TRI; break;
-		    case 3: LFO->table=PLFO_NOI; break;
-		}
-		LFO->scale=PSCALES[LFOS];
-	}
-}