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