adlibemu.c File Reference

#include <math.h>
#include <string.h>

Classes
struct	celltype

Macros
#define	max(a, b)
#define	min(a, b)
#define	PI   3.141592653589793
#define	MAXCELLS   18
#define	WAVPREC   2048
#define	FRQSCALE   (49716/512.0)
#define	MODFACTOR   4.0
#define	MFBFACTOR   1.0
#define	ADJUSTSPEED   0.75
#define	FIFOSIZ   256
#define	_inline
#define	ctc   ((celltype *)c)

Functions
static void	ftol (float f, long *a)
void	docell4 (void *c, float modulator)
void	docell3 (void *c, float modulator)
void	docell2 (void *c, float modulator)
void	docell1 (void *c, float modulator)
void	docell0 (void *c, float modulator)
void	cellon (long i, long j, celltype *c, unsigned char iscarrier)
void	cellfreq (signed long i, signed long j, celltype *c)
void	adlibinit (long dasamplerate, long danumspeakers, long dabytespersample)
void	adlib0 (long i, long v)
static void	clipit8 (float f, unsigned char *a)
static void	clipit16 (float f, short *a)
void	adlibsetvolume (int i)
void	adlibgetsample (unsigned char *sndptr, long numbytes)

Variables
static float	AMPSCALE =(8192.0)
static long	numspeakers
static long	bytespersample
static float	recipsamp
static celltype	cell [MAXCELLS]
static signed short	wavtable [WAVPREC *3]
static float	kslmul [4] = {0.0,0.5,0.25,1.0}
static float	frqmul [16] = {.5,1,2,3,4,5,6,7,8,9,10,10,12,12,15,15}
static float	nfrqmul [16]
static unsigned char	adlibreg [256]
static unsigned char	ksl [8][16]
static unsigned char	modulatorbase [9] = {0,1,2,8,9,10,16,17,18}
static unsigned char	odrumstat = 0
static unsigned char	base2cell [22] = {0,1,2,0,1,2,0,0,3,4,5,3,4,5,0,0,6,7,8,6,7,8}
float	lvol [9] = {1,1,1,1,1,1,1,1,1}
float	rvol [9] = {1,1,1,1,1,1,1,1,1}
long	lplc [9] = {0,0,0,0,0,0,0,0,0}
long	rplc [9] = {0,0,0,0,0,0,0,0,0}
long	nlvol [9]
long	nrvol [9]
long	nlplc [9]
long	nrplc [9]
long	rend = 0
static float *	rptr [9]
static float *	nrptr [9]
static float	rbuf [9][FIFOSIZ *2]
static float	snd [FIFOSIZ *2]
static long	waveform [8] = {WAVPREC,WAVPREC>>1,WAVPREC,(WAVPREC*3)>>2,0,0,(WAVPREC*5)>>2,WAVPREC<<1}
static long	wavemask [8] = {WAVPREC-1,WAVPREC-1,(WAVPREC>>1)-1,(WAVPREC>>1)-1,WAVPREC-1,((WAVPREC*3)>>2)-1,WAVPREC>>1,WAVPREC-1}
static long	wavestart [8] = {0,WAVPREC>>1,0,WAVPREC>>2,0,0,0,WAVPREC>>3}
static float	attackconst [4] = {1/2.82624,1/2.25280,1/1.88416,1/1.59744}
static float	decrelconst [4] = {1/39.28064,1/31.41608,1/26.17344,1/22.44608}
static long	initfirstime = 0

Macro Definition Documentation

_inline

#define _inline

ADJUSTSPEED

#define ADJUSTSPEED   0.75

ctc

#define ctc   ((celltype *)c)

FIFOSIZ

#define FIFOSIZ   256

FRQSCALE

#define FRQSCALE   (49716/512.0)

max

#define max	(		a,
			b )

Value:

(((a) > (b)) ? (a) : (b))

MAXCELLS

#define MAXCELLS   18

MFBFACTOR

#define MFBFACTOR   1.0

min

#define min	(		a,
			b )

Value:

(((a) < (b)) ? (a) : (b))

MODFACTOR

#define MODFACTOR   4.0

PI

#define PI   3.141592653589793

WAVPREC

#define WAVPREC   2048

Function Documentation

adlib0()

void adlib0	(	long	i,
		long	v )

adlibgetsample()

void adlibgetsample	(	unsigned char *	sndptr,
		long	numbytes )

adlibinit()

void adlibinit	(	long	dasamplerate,
		long	danumspeakers,
		long	dabytespersample )

adlibsetvolume()

void adlibsetvolume

(

int

i

)

cellfreq()

void cellfreq	(	signed long	i,
		signed long	j,
		celltype *	c )

cellon()

void cellon	(	long	i,
		long	j,
		celltype *	c,
		unsigned char	iscarrier )

clipit16()

void clipit16 ( float f, short * a )

static

clipit8()

void clipit8 ( float f, unsigned char * a )

static

docell0()

void docell0	(	void *	c,
		float	modulator )

docell1()

void docell1	(	void *	c,
		float	modulator )

docell2()

void docell2	(	void *	c,
		float	modulator )

docell3()

void docell3	(	void *	c,
		float	modulator )

docell4()

void docell4	(	void *	c,
		float	modulator )

ftol()

void ftol ( float f, long * a )

static

Variable Documentation

adlibreg

unsigned char adlibreg[256]

static

AMPSCALE

float AMPSCALE =(8192.0)

static

attackconst

float attackconst[4] = {1/2.82624,1/2.25280,1/1.88416,1/1.59744}

static

base2cell

unsigned char base2cell[22] = {0,1,2,0,1,2,0,0,3,4,5,3,4,5,0,0,6,7,8,6,7,8}

static

bytespersample

long bytespersample

static

cell

celltype cell[MAXCELLS]

static

decrelconst

float decrelconst[4] = {1/39.28064,1/31.41608,1/26.17344,1/22.44608}

static

frqmul

float frqmul[16] = {.5,1,2,3,4,5,6,7,8,9,10,10,12,12,15,15}

static

initfirstime

long initfirstime = 0

static

ksl

unsigned char ksl[8][16]

static

kslmul

float kslmul[4] = {0.0,0.5,0.25,1.0}

static

lplc

long lplc[9] = {0,0,0,0,0,0,0,0,0}

lvol

float lvol[9] = {1,1,1,1,1,1,1,1,1}

modulatorbase

unsigned char modulatorbase[9] = {0,1,2,8,9,10,16,17,18}

static

nfrqmul

float nfrqmul[16]

static

nlplc

long nlplc[9]

nlvol

long nlvol[9]

nrplc

long nrplc[9]

nrptr

float * nrptr[9]

static

nrvol

long nrvol[9]

numspeakers

long numspeakers

static

odrumstat

unsigned char odrumstat = 0

static

rbuf

float rbuf[9][FIFOSIZ *2]

static

recipsamp

float recipsamp

static

rend

long rend = 0

rplc

long rplc[9] = {0,0,0,0,0,0,0,0,0}

rptr

float* rptr[9]

static

rvol

float rvol[9] = {1,1,1,1,1,1,1,1,1}

snd

float snd[FIFOSIZ *2]

static

waveform

long waveform[8] = {WAVPREC,WAVPREC>>1,WAVPREC,(WAVPREC*3)>>2,0,0,(WAVPREC*5)>>2,WAVPREC<<1}

static

wavemask

long wavemask[8] = {WAVPREC-1,WAVPREC-1,(WAVPREC>>1)-1,(WAVPREC>>1)-1,WAVPREC-1,((WAVPREC*3)>>2)-1,WAVPREC>>1,WAVPREC-1}

static

wavestart

long wavestart[8] = {0,WAVPREC>>1,0,WAVPREC>>2,0,0,0,WAVPREC>>3}

static

wavtable

signed short wavtable[WAVPREC *3]

static