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# Conflicts: # src/CMakeLists.txt # src/sound/mididevices/music_opnmidi_mididevice.cpp # Conflicts: # src/sound/mididevices/music_opnmidi_mididevice.cpp
165 lines
4.8 KiB
C
165 lines
4.8 KiB
C
/*
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File: fm.h -- header file for software emulation for FM sound generator
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*/
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#ifndef FM_HHHHH
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#define FM_HHHHH
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "mamedef.h"
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/* --- select emulation chips --- */
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/*
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#define BUILD_YM2203 (HAS_YM2203) // build YM2203(OPN) emulator
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#define BUILD_YM2608 (HAS_YM2608) // build YM2608(OPNA) emulator
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#define BUILD_YM2610 (HAS_YM2610) // build YM2610(OPNB) emulator
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#define BUILD_YM2610B (HAS_YM2610B) // build YM2610B(OPNB?)emulator
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#define BUILD_YM2612 (HAS_YM2612) // build YM2612(OPN2) emulator
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#define BUILD_YM3438 (HAS_YM3438) // build YM3438(OPN) emulator
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*/
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#define BUILD_YM2203 0
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#define BUILD_YM2608 0
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#define BUILD_YM2610 0
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#define BUILD_YM2610B 0
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#define BUILD_YM2612 1
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#define BUILD_YM3438 0
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#define FM_BUSY_FLAG_SUPPORT 0
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/* select bit size of output : 8 or 16 */
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#define FM_SAMPLE_BITS 16
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/* select timer system internal or external */
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#define FM_INTERNAL_TIMER 1
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/* --- speedup optimize --- */
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/* busy flag enulation , The definition of FM_GET_TIME_NOW() is necessary. */
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/* #define FM_BUSY_FLAG_SUPPORT 1 */
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/* --- external SSG(YM2149/AY-3-8910)emulator interface port */
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/* used by YM2203,YM2608,and YM2610 */
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typedef struct _ssg_callbacks ssg_callbacks;
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struct _ssg_callbacks
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{
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void (*set_clock)(void *param, int clock);
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void (*write)(void *param, int address, int data);
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int (*read)(void *param);
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void (*reset)(void *param);
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};
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/* --- external callback funstions for realtime update --- */
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#if FM_BUSY_FLAG_SUPPORT
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#define TIME_TYPE attotime
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#define UNDEFINED_TIME attotime_zero
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#define FM_GET_TIME_NOW(machine) timer_get_time(machine)
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#define ADD_TIMES(t1, t2) attotime_add((t1), (t2))
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#define COMPARE_TIMES(t1, t2) attotime_compare((t1), (t2))
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#define MULTIPLY_TIME_BY_INT(t,i) attotime_mul(t, i)
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#endif
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/* compiler dependence */
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#if 0
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#ifndef OSD_CPU_H
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#define OSD_CPU_H
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typedef unsigned char UINT8; /* unsigned 8bit */
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typedef unsigned short UINT16; /* unsigned 16bit */
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typedef unsigned int UINT32; /* unsigned 32bit */
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typedef signed char INT8; /* signed 8bit */
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typedef signed short INT16; /* signed 16bit */
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typedef signed int INT32; /* signed 32bit */
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#endif /* OSD_CPU_H */
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#endif
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typedef stream_sample_t FMSAMPLE;
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/*
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#if (FM_SAMPLE_BITS==16)
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typedef INT16 FMSAMPLE;
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#endif
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#if (FM_SAMPLE_BITS==8)
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typedef unsigned char FMSAMPLE;
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#endif
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*/
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typedef void (*FM_TIMERHANDLER)(void *param,int c,int cnt,int clock);
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typedef void (*FM_IRQHANDLER)(void *param,int irq);
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/* FM_TIMERHANDLER : Stop or Start timer */
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/* int n = chip number */
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/* int c = Channel 0=TimerA,1=TimerB */
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/* int count = timer count (0=stop) */
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/* doube stepTime = step time of one count (sec.)*/
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/* FM_IRQHHANDLER : IRQ level changing sense */
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/* int n = chip number */
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/* int irq = IRQ level 0=OFF,1=ON */
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#if (BUILD_YM2612||BUILD_YM3438)
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/**
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* @brief Initialize chip and return the instance
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* @param param Unused, keep NULL
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* @param baseclock YM2612 clock
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* @param rate Output sample rate
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* @param TimerHandler Keep NULL
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* @param IRQHandler Keep NULL
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* @return Chip instance or NULL on any error
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*/
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void * ym2612_init(void *param, int baseclock, int rate,
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FM_TIMERHANDLER TimerHandler,FM_IRQHANDLER IRQHandler);
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/**
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* @brief Free chip instance
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* @param chip Chip instance
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*/
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void ym2612_shutdown(void *chip);
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/**
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* @brief Reset state of the chip
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* @param chip Chip instance
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*/
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void ym2612_reset_chip(void *chip);
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/**
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* @brief Generate stereo output of specified length
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* @param chip Chip instance
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* @param buffer Output sound buffer
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* @param frames Output buffer size in frames (one frame - two array entries of the buffer)
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* @param mix 0 - override buffer data, 1 - mix output data with a content of the buffer
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*/
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void ym2612_generate(void *chip, FMSAMPLE *buffer, int frames, int mix);
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#define ym2612_update_one(chip, buffer, length) ym2612_generate(chip, buffer, length, 0)
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/**
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* @brief Single-Sample generation prepare
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* @param chip Chip instance
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*/
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void ym2612_pre_generate(void *chip);
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/**
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* @brief Generate single stereo PCM frame. Will be used native sample rate of 53267 Hz
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* @param chip Chip instance
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* @param buffer One stereo PCM frame
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*/
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void ym2612_generate_one_native(void *chip, FMSAMPLE buffer[2]);
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/* void ym2612_post_generate(void *chip, int length); */
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int ym2612_write(void *chip, int a, unsigned char v);
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void ym2612_write_pan(void *chip, int c, unsigned char v);
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unsigned char ym2612_read(void *chip, int a);
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int ym2612_timer_over(void *chip, int c );
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void ym2612_postload(void *chip);
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void ym2612_set_mutemask(void *chip, UINT32 MuteMask);
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void ym2612_setoptions(UINT8 Flags);
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#endif /* (BUILD_YM2612||BUILD_YM3438) */
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#ifdef __cplusplus
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}
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#endif
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#endif /* FM_HHHHH */
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