X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Pico%2Fsound%2Fym2612.h;fp=Pico%2Fsound%2Fym2612.h;h=0000000000000000000000000000000000000000;hb=1cfc5cc4ce06642b9bc45ca3b9d32793718e9455;hp=f5e98a05786508e859bf3650d5a803613fb91e31;hpb=d158df697da66bcda57307e35fc77929cfa5053c;p=picodrive.git diff --git a/Pico/sound/ym2612.h b/Pico/sound/ym2612.h deleted file mode 100644 index f5e98a0..0000000 --- a/Pico/sound/ym2612.h +++ /dev/null @@ -1,192 +0,0 @@ -/* - header file for software emulation for FM sound generator - -*/ -#ifndef _H_FM_FM_ -#define _H_FM_FM_ - -/* compiler dependence */ -#ifndef UINT8 -typedef unsigned char UINT8; /* unsigned 8bit */ -typedef unsigned short UINT16; /* unsigned 16bit */ -typedef unsigned int UINT32; /* unsigned 32bit */ -#endif -#ifndef INT8 -typedef signed char INT8; /* signed 8bit */ -typedef signed short INT16; /* signed 16bit */ -typedef signed int INT32; /* signed 32bit */ -#endif - -#if 1 -/* struct describing a single operator (SLOT) */ -typedef struct -{ - INT32 *DT; /* #0x00 detune :dt_tab[DT] */ - UINT8 ar; /* #0x04 attack rate */ - UINT8 d1r; /* #0x05 decay rate */ - UINT8 d2r; /* #0x06 sustain rate */ - UINT8 rr; /* #0x07 release rate */ - UINT32 mul; /* #0x08 multiple :ML_TABLE[ML] */ - - /* Phase Generator */ - UINT32 phase; /* #0x0c phase counter | need_save */ - UINT32 Incr; /* #0x10 phase step */ - - UINT8 KSR; /* #0x14 key scale rate :3-KSR */ - UINT8 ksr; /* #0x15 key scale rate :kcode>>(3-KSR) */ - - UINT8 key; /* #0x16 0=last key was KEY OFF, 1=KEY ON */ - - /* Envelope Generator */ - UINT8 state; /* #0x17 phase type: EG_OFF=0, EG_REL, EG_SUS, EG_DEC, EG_ATT | need_save */ - UINT16 tl; /* #0x18 total level: TL << 3 */ - INT16 volume; /* #0x1a envelope counter | need_save */ - UINT32 sl; /* #0x1c sustain level:sl_table[SL] */ - - UINT32 eg_pack_ar; /* #0x20 (attack state) */ - UINT32 eg_pack_d1r; /* #0x24 (decay state) */ - UINT32 eg_pack_d2r; /* #0x28 (sustain state) */ - UINT32 eg_pack_rr; /* #0x2c (release state) */ -} FM_SLOT; - - -typedef struct -{ - FM_SLOT SLOT[4]; /* four SLOTs (operators) */ - - UINT8 ALGO; /* +00 algorithm */ - UINT8 FB; /* feedback shift */ - UINT8 pad[2]; - INT32 op1_out; /* op1 output for feedback */ - - INT32 mem_value; /* +08 delayed sample (MEM) value */ - - INT32 pms; /* channel PMS */ - UINT8 ams; /* channel AMS */ - - UINT8 kcode; /* +11 key code: */ - UINT8 fn_h; /* freq latch */ - UINT8 pad2; - UINT32 fc; /* fnum,blk:adjusted to sample rate */ - UINT32 block_fnum; /* current blk/fnum value for this slot (can be different betweeen slots of one channel in 3slot mode) */ - - /* LFO */ - UINT8 AMmasks; /* AM enable flag */ - UINT8 pad3[3]; -} FM_CH; - -typedef struct -{ - int clock; /* master clock (Hz) */ - int rate; /* sampling rate (Hz) */ - double freqbase; /* 08 frequency base */ - UINT8 address; /* 10 address register | need_save */ - UINT8 status; /* 11 status flag | need_save */ - UINT8 mode; /* mode CSM / 3SLOT */ - UINT8 pad; - int TA; /* timer a */ - int TAC; /* timer a maxval */ - int TAT; /* timer a ticker | need_save */ - UINT8 TB; /* timer b */ - UINT8 pad2[3]; - int TBC; /* timer b maxval */ - int TBT; /* timer b ticker | need_save */ - /* local time tables */ - INT32 dt_tab[8][32];/* DeTune table */ -} FM_ST; - -/***********************************************************/ -/* OPN unit */ -/***********************************************************/ - -/* OPN 3slot struct */ -typedef struct -{ - UINT32 fc[3]; /* fnum3,blk3: calculated */ - UINT8 fn_h; /* freq3 latch */ - UINT8 kcode[3]; /* key code */ - UINT32 block_fnum[3]; /* current fnum value for this slot (can be different betweeen slots of one channel in 3slot mode) */ -} FM_3SLOT; - -/* OPN/A/B common state */ -typedef struct -{ - FM_ST ST; /* general state */ - FM_3SLOT SL3; /* 3 slot mode state */ - UINT32 pan; /* fm channels output mask (bit 1 = enable) */ - - UINT32 eg_cnt; /* global envelope generator counter | need_save */ - UINT32 eg_timer; /* global envelope generator counter works at frequency = chipclock/64/3 | need_save */ - UINT32 eg_timer_add; /* step of eg_timer */ - - /* LFO */ - UINT32 lfo_cnt; /* need_save */ - UINT32 lfo_inc; - - UINT32 lfo_freq[8]; /* LFO FREQ table */ -} FM_OPN; - -/* here's the virtual YM2612 */ -typedef struct -{ - UINT8 REGS[0x200]; /* registers (for save states) */ - INT32 addr_A1; /* address line A1 | need_save */ - - FM_CH CH[6]; /* channel state */ - - /* dac output (YM2612) */ - int dacen; - INT32 dacout; - - FM_OPN OPN; /* OPN state */ - - UINT32 slot_mask; /* active slot mask (performance hack) */ -} YM2612; -#endif - -#ifndef EXTERNAL_YM2612 -extern YM2612 ym2612; -#endif - -void YM2612Init_(int baseclock, int rate); -void YM2612ResetChip_(void); -int YM2612UpdateOne_(int *buffer, int length, int stereo, int is_buf_empty); - -int YM2612Write_(unsigned int a, unsigned int v); -//unsigned char YM2612Read_(void); - -int YM2612PicoTick_(int n); -void YM2612PicoStateLoad_(void); - -void *YM2612GetRegs(void); -void YM2612PicoStateSave2(int tat, int tbt); -int YM2612PicoStateLoad2(int *tat, int *tbt); - -#ifndef __GP2X__ -#define YM2612Init YM2612Init_ -#define YM2612ResetChip YM2612ResetChip_ -#define YM2612UpdateOne YM2612UpdateOne_ -#define YM2612PicoStateLoad YM2612PicoStateLoad_ -#else -/* GP2X specific */ -#include "../../platform/gp2x/940ctl.h" -extern int PicoOpt; -#define YM2612Init(baseclock,rate) { \ - if (PicoOpt&0x200) YM2612Init_940(baseclock, rate); \ - else YM2612Init_(baseclock, rate); \ -} -#define YM2612ResetChip() { \ - if (PicoOpt&0x200) YM2612ResetChip_940(); \ - else YM2612ResetChip_(); \ -} -#define YM2612UpdateOne(buffer,length,stereo,is_buf_empty) \ - (PicoOpt&0x200) ? YM2612UpdateOne_940(buffer, length, stereo, is_buf_empty) : \ - YM2612UpdateOne_(buffer, length, stereo, is_buf_empty); -#define YM2612PicoStateLoad() { \ - if (PicoOpt&0x200) YM2612PicoStateLoad_940(); \ - else YM2612PicoStateLoad_(); \ -} -#endif /* __GP2X__ */ - - -#endif /* _H_FM_FM_ */