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#ifndef MYON_FMDRIVER_H_INCLUDED
#define MYON_FMDRIVER_H_INCLUDED
#include <stdint.h>
#include <stdbool.h>
#include "ppz8.h"
enum {
FMDRIVER_TRACK_FM_1,
FMDRIVER_TRACK_FM_2,
FMDRIVER_TRACK_FM_3,
FMDRIVER_TRACK_FM_3_EX_1,
FMDRIVER_TRACK_FM_3_EX_2,
FMDRIVER_TRACK_FM_3_EX_3,
FMDRIVER_TRACK_FM_4,
FMDRIVER_TRACK_FM_5,
FMDRIVER_TRACK_FM_6,
FMDRIVER_TRACK_SSG_1,
FMDRIVER_TRACK_SSG_2,
FMDRIVER_TRACK_SSG_3,
FMDRIVER_TRACK_ADPCM,
FMDRIVER_TRACK_PPZ8_1,
FMDRIVER_TRACK_PPZ8_2,
FMDRIVER_TRACK_PPZ8_3,
FMDRIVER_TRACK_PPZ8_4,
FMDRIVER_TRACK_PPZ8_5,
FMDRIVER_TRACK_PPZ8_6,
FMDRIVER_TRACK_PPZ8_7,
FMDRIVER_TRACK_PPZ8_8,
FMDRIVER_TRACK_NUM
};
enum {
// 1 line = 80 characters, may contain half-width doublebyte characters
FMDRIVER_TITLE_BUFLEN = 80*2+1,
};
enum fmdriver_track_type {
FMDRIVER_TRACKTYPE_FM,
FMDRIVER_TRACKTYPE_SSG,
FMDRIVER_TRACKTYPE_ADPCM,
FMDRIVER_TRACKTYPE_PPZ8,
FMDRIVER_TRACKTYPE_CNT,
};
enum fmdriver_track_info {
FMDRIVER_TRACK_INFO_NORMAL,
FMDRIVER_TRACK_INFO_SSG,
FMDRIVER_TRACK_INFO_FM3EX,
FMDRIVER_TRACK_INFO_PPZ8,
FMDRIVER_TRACK_INFO_PDZF,
FMDRIVER_TRACK_INFO_SSGEFF,
};
struct fmdriver_track_status {
bool playing;
enum fmdriver_track_info info;
uint8_t ticks;
uint8_t ticks_left;
uint8_t key;
// key after pitchbend, LFO, etc. applied
uint8_t actual_key;
uint8_t tonenum;
uint8_t volume;
uint8_t gate;
int8_t detune;
char status[9];
bool fmslotmask[4];
// for FMP, ppz8 channel+1 or 0
// use for track mask or display
uint8_t ppz8_ch;
bool ssg_tone;
bool ssg_noise;
};
struct fmdriver_work {
// set by driver, called by opna
void (*driver_opna_interrupt)(struct fmdriver_work *work);
void (*driver_deinit)(struct fmdriver_work *work);
// driver internal
void *driver;
// set by opna, called by driver in the interrupt functions
unsigned (*opna_readreg)(struct fmdriver_work *work, unsigned addr);
void (*opna_writereg)(struct fmdriver_work *work, unsigned addr, unsigned data);
uint8_t (*opna_status)(struct fmdriver_work *work, bool a1);
void *opna;
const struct ppz8_functbl *ppz8_functbl;
struct ppz8 *ppz8;
// if false, 3 line comment
// if true, PMD memo mode
bool comment_mode_pmd;
// CP932 encoded
// may contain ANSI escape sequences
// if !comment_mode_pmd:
// three lines, 0 <= line < 3
// if comment_mode_pmd:
// line 0: #Title
// line 1: #Composer
// line 2: #Arranger
// line 3: #Memo 1st line
// :
// line n: NULL
const char *(*get_comment)(struct fmdriver_work *work, int line);
// only single-byte uppercase cp932
char filename[FMDRIVER_TITLE_BUFLEN];
// always 8 characters and pad with ' '
char pcmname[2][9];
// driver status (for display)
bool pcmerror[2];
uint8_t ssg_noise_freq;
struct fmdriver_track_status track_status[FMDRIVER_TRACK_NUM];
uint8_t loop_cnt;
// timerb value
uint8_t timerb;
// current timerb count
uint32_t timerb_cnt;
// current timerb count, reset on loop
uint32_t timerb_cnt_loop;
// loop length, calculated before playing
uint32_t loop_timerb_cnt;
// fm3ex part map
bool playing;
bool paused;
};
#endif // MYON_FMDRIVER_H_INCLUDED
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