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update mzpokeysnd

This commit is contained in:
tildearrow 2022-12-19 14:18:04 -05:00
parent 222abe7e76
commit a8071a3c9f
3 changed files with 97 additions and 13 deletions
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19
src/engine/platform/sound/pokey/mzpokeysnd.c
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@ -25,17 +25,10 @@
// additional modifications for Furnace by tildearrow
#define _USE_MATH_DEFINES
#include "config.h"
#include <stdlib.h>
#include <math.h>
#include "asap_internal.h"
#include "atari.h"
#include "mzpokeysnd.h"
#include "pokeysnd.h"
#include "remez.h"
#include "antic.h"
#include "gtia.h"
#define CONSOLE_VOL 8
#ifdef NONLINEAR_MIXING
@ -1221,9 +1214,9 @@ found:
return size;
}
static void mzpokeysnd_process_8(void* sndbuffer, int sndn);
static void mzpokeysnd_process_16(void* sndbuffer, int sndn);
static void Update_pokey_sound_mz(UWORD addr, UBYTE val, UBYTE gain);
void mzpokeysnd_process_8(void* sndbuffer, int sndn);
void mzpokeysnd_process_16(void* sndbuffer, int sndn);
void Update_pokey_sound_mz(UWORD addr, UBYTE val, UBYTE gain);
#ifdef VOL_ONLY_SOUND
static void Update_vol_only_sound_mz( void );
#endif
@ -1857,7 +1850,7 @@ static void Update_c3stop(PokeyState* ps)
/* Outputs: Adjusts local globals - no return value */
/* */
/*****************************************************************************/
static void Update_pokey_sound_mz(UWORD addr, UBYTE val, UBYTE gain)
void Update_pokey_sound_mz(UWORD addr, UBYTE val, UBYTE gain)
{
PokeyState* ps = pokey_states;
@ -2162,7 +2155,7 @@ static void Update_pokey_sound_mz(UWORD addr, UBYTE val, UBYTE gain)
#define MAX_SAMPLE 152
static void mzpokeysnd_process_8(void* sndbuffer, int sndn)
void mzpokeysnd_process_8(void* sndbuffer, int sndn)
{
int i;
int nsam = sndn;
@ -2203,7 +2196,7 @@ static void mzpokeysnd_process_8(void* sndbuffer, int sndn)
}
}
static void mzpokeysnd_process_16(void* sndbuffer, int sndn)
void mzpokeysnd_process_16(void* sndbuffer, int sndn)
{
int i;
int nsam = sndn;

2
src/engine/platform/sound/pokey/mzpokeysnd.h
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@ -1,6 +1,8 @@
#ifndef MZPOKEYSND_H_
#define MZPOKEYSND_H_
#include <stdlib.h>
int MZPOKEYSND_Init(size_t freq17,
int playback_freq,
int flags,

89
src/engine/platform/sound/pokey/pokey.h Normal file
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@ -0,0 +1,89 @@
#ifndef POKEY_H_
#define POKEY_H_
#define POKEY_OFFSET_AUDF1 0x00
#define POKEY_OFFSET_AUDC1 0x01
#define POKEY_OFFSET_AUDF2 0x02
#define POKEY_OFFSET_AUDC2 0x03
#define POKEY_OFFSET_AUDF3 0x04
#define POKEY_OFFSET_AUDC3 0x05
#define POKEY_OFFSET_AUDF4 0x06
#define POKEY_OFFSET_AUDC4 0x07
#define POKEY_OFFSET_AUDCTL 0x08
#define POKEY_OFFSET_STIMER 0x09
#define POKEY_OFFSET_SKRES 0x0a
#define POKEY_OFFSET_POTGO 0x0b
#define POKEY_OFFSET_SEROUT 0x0d
#define POKEY_OFFSET_IRQEN 0x0e
#define POKEY_OFFSET_SKCTL 0x0f
#define POKEY_OFFSET_POT0 0x00
#define POKEY_OFFSET_POT1 0x01
#define POKEY_OFFSET_POT2 0x02
#define POKEY_OFFSET_POT3 0x03
#define POKEY_OFFSET_POT4 0x04
#define POKEY_OFFSET_POT5 0x05
#define POKEY_OFFSET_POT6 0x06
#define POKEY_OFFSET_POT7 0x07
#define POKEY_OFFSET_ALLPOT 0x08
#define POKEY_OFFSET_KBCODE 0x09
#define POKEY_OFFSET_RANDOM 0x0a
#define POKEY_OFFSET_SERIN 0x0d
#define POKEY_OFFSET_IRQST 0x0e
#define POKEY_OFFSET_SKSTAT 0x0f
/* CONSTANT DEFINITIONS */
/* definitions for AUDCx (D201, D203, D205, D207) */
#define POKEY_NOTPOLY5 0x80 /* selects POLY5 or direct CLOCK */
#define POKEY_POLY4 0x40 /* selects POLY4 or POLY17 */
#define POKEY_PURETONE 0x20 /* selects POLY4/17 or PURE tone */
#define POKEY_VOL_ONLY 0x10 /* selects VOLUME OUTPUT ONLY */
#define POKEY_VOLUME_MASK 0x0f /* volume mask */
/* definitions for AUDCTL (D208) */
#define POKEY_POLY9 0x80 /* selects POLY9 or POLY17 */
#define POKEY_CH1_179 0x40 /* selects 1.78979 MHz for Ch 1 */
#define POKEY_CH3_179 0x20 /* selects 1.78979 MHz for Ch 3 */
#define POKEY_CH1_CH2 0x10 /* clocks channel 1 w/channel 2 */
#define POKEY_CH3_CH4 0x08 /* clocks channel 3 w/channel 4 */
#define POKEY_CH1_FILTER 0x04 /* selects channel 1 high pass filter */
#define POKEY_CH2_FILTER 0x02 /* selects channel 2 high pass filter */
#define POKEY_CLOCK_15 0x01 /* selects 15.6999kHz or 63.9210kHz */
/* for accuracy, the 64kHz and 15kHz clocks are exact divisions of
the 1.79MHz clock */
#define POKEY_DIV_64 28 /* divisor for 1.79MHz clock to 64 kHz */
#define POKEY_DIV_15 114 /* divisor for 1.79MHz clock to 15 kHz */
/* the size (in entries) of the 4 polynomial tables */
#define POKEY_POLY4_SIZE 0x000f
#define POKEY_POLY5_SIZE 0x001f
#define POKEY_POLY9_SIZE 0x01ff
#define POKEY_POLY17_SIZE 0x0001ffff
#define POKEY_MAXPOKEYS 2 /* max number of emulated chips */
/* channel/chip definitions */
#define POKEY_CHAN1 0
#define POKEY_CHAN2 1
#define POKEY_CHAN3 2
#define POKEY_CHAN4 3
#define POKEY_CHIP1 0
#define POKEY_CHIP2 4
#define POKEY_CHIP3 8
#define POKEY_CHIP4 12
#define POKEY_SAMPLE 127
/* structures to hold the 9 pokey control bytes */
extern UBYTE POKEY_AUDF[4 * POKEY_MAXPOKEYS]; /* AUDFx (D200, D202, D204, D206) */
extern UBYTE POKEY_AUDC[4 * POKEY_MAXPOKEYS]; /* AUDCx (D201, D203, D205, D207) */
extern UBYTE POKEY_AUDCTL[POKEY_MAXPOKEYS]; /* AUDCTL (D208) */
extern int POKEY_DivNIRQ[4], POKEY_DivNMax[4];
extern int POKEY_Base_mult[POKEY_MAXPOKEYS]; /* selects either 64Khz or 15Khz clock mult */
extern UBYTE POKEY_poly9_lookup[POKEY_POLY9_SIZE];
extern UBYTE POKEY_poly17_lookup[16385];
#endif /* POKEY_H_ */