full ym2612 save/load for 940

[picodrive.git] / platform / gp2x / code940 / 940shared.h

#include "../../../Pico/sound/ym2612.h"\r
#include "../../common/helix/pub/mp3dec.h"\r
\r
// max 16 jobs, lower num means higher prio\r
enum _940_job_t {\r
	JOB940_INITALL = 1,\r
	JOB940_INVALIDATE_DCACHE,\r
	JOB940_YM2612RESETCHIP,\r
	JOB940_YM2612UPDATEONE,\r
	JOB940_MP3DECODE,\r
	JOB940_PICOSTATELOAD,\r
	JOB940_PICOSTATESAVE2,\r
	JOB940_PICOSTATELOAD2_PREP,\r
	JOB940_PICOSTATELOAD2,\r
};\r
\r
//#define MAX_940JOBS	2\r
\r
typedef struct\r
{\r
	YM2612  ym2612;				/* current state of the emulated YM2612 */\r
	HMP3Decoder mp3dec;			/* mp3 decoder's handle */\r
	int     ym_buffer[44100/50*2];		/* this is where the YM2612 samples will be mixed to */\r
	short   mp3_buffer[2][1152*2];		/* buffers for mp3 decoder's output */\r
} _940_data_t;\r
\r
\r
typedef struct\r
{\r
	int		vstarts[8];				/* debug: 00: number of starts from each of 8 vectors */\r
	int		last_lr;				/* debug: 20: last exception's lr */\r
//	int		jobs[MAX_940JOBS];			/* jobs for second core */\r
//	int		busy_;					/* unused */\r
	int		length;					/* number of samples to mix (882 max) */\r
	int		stereo;					/* mix samples as stereo, doubles sample count automatically */\r
	int		baseclock;				/* ym2612 settings */\r
	int		rate;\r
	int		writebuffsel;			/* which write buffer to use (from 940 side) */\r
	UINT16  writebuff0[2048];			/* list of writes to ym2612, 1024 for savestates, 1024 extra */\r
	UINT16  writebuff1[2048];\r
	int		ym_active_chs;\r
	int		mp3_len;			/* data len of loaded mp3 */\r
	int		mp3_offs;			/* current playback offset (just after last decoded frame) */\r
	int		mp3_buffsel;			/* which output buffer to decode to */\r
	int		loopc;				/* debug: main loop counter */\r
	int		mp3_errors;			/* debug: mp3 decoder's error counter */\r
	int		mp3_lasterr;			/* debug: mp3 decoder's last error */\r
	int		lastjob;			/* debug: last job id */\r
} _940_ctl_t;\r