diff options
Diffstat (limited to 'contrib/nosefart/nsf.h')
| -rw-r--r-- | contrib/nosefart/nsf.h | 92 |
1 files changed, 63 insertions, 29 deletions
diff --git a/contrib/nosefart/nsf.h b/contrib/nosefart/nsf.h index 79ec1dbb6..79ce55c35 100644 --- a/contrib/nosefart/nsf.h +++ b/contrib/nosefart/nsf.h @@ -62,28 +62,29 @@ enum { NSF_FILTER_NONE, NSF_FILTER_LOWPASS, - NSF_FILTER_WEIGHTED + NSF_FILTER_WEIGHTED, + NSF_FILTER_MAX, /* $$$ ben : add this one for range chacking */ }; typedef struct nsf_s { /* NESM header */ - uint8 id[5]; /* NESM\x1A */ - uint8 version; /* spec version */ - uint8 num_songs; /* total num songs */ - uint8 start_song; /* first song */ - uint16 load_addr; /* loc to load code */ - uint16 init_addr; /* init call address */ - uint16 play_addr; /* play call address */ - uint8 song_name[32]; /* name of song */ - uint8 artist_name[32]; /* artist name */ - uint8 copyright[32]; /* copyright info */ - uint16 ntsc_speed; /* playback speed (if NTSC) */ - uint8 bankswitch_info[8]; /* initial code banking */ - uint16 pal_speed; /* playback speed (if PAL) */ - uint8 pal_ntsc_bits; /* NTSC/PAL determination bits */ - uint8 ext_sound_type; /* type of external sound gen. */ - uint8 reserved[4]; /* reserved */ + uint8 id[5]; /* NESM\x1A */ + uint8 version; /* spec version */ + uint8 num_songs; /* total num songs */ + uint8 start_song; /* first song */ + uint16 load_addr; /* loc to load code */ + uint16 init_addr; /* init call address */ + uint16 play_addr; /* play call address */ + uint8 song_name[32]; /* name of song */ + uint8 artist_name[32]; /* artist name */ + uint8 copyright[32]; /* copyright info */ + uint16 ntsc_speed; /* playback speed (if NTSC) */ + uint8 bankswitch_info[8]; /* initial code banking */ + uint16 pal_speed; /* playback speed (if PAL) */ + uint8 pal_ntsc_bits; /* NTSC/PAL determination bits */ + uint8 ext_sound_type; /* type of external sound gen. */ + uint8 reserved[4]; /* reserved */ /* things that the NSF player needs */ uint8 *data; /* actual NSF data */ @@ -92,6 +93,14 @@ typedef struct nsf_s uint8 current_song; /* current song */ boolean bankswitched; /* is bankswitched? */ + /* $$$ ben : Playing time ... */ + uint32 cur_frame; + uint32 cur_frame_end; + uint32 * song_frames; + + /* $$$ ben : Last error string */ + const char * errstr; + /* CPU and APU contexts */ nes6502_context *cpu; apu_t *apu; @@ -100,30 +109,55 @@ typedef struct nsf_s void (*process)(void *buffer, int num_samples); } XINE_PACKED nsf_t; +/* $$$ ben : Generic loader struct */ +struct nsf_loader_t { + /* Init and open. */ + int (*open)(struct nsf_loader_t * loader); + + /* Close and shutdown. */ + void (*close) (struct nsf_loader_t * loader); + + /* This function should return <0 on error, else the number of byte NOT read. + * that way a simple 0 test tell us if read was complete. + */ + int (*read) (struct nsf_loader_t * loader, void *data, int n); + + /* Get file length. */ + int (*length) (struct nsf_loader_t * loader); + + /* Skip n bytes. */ + int (*skip) (struct nsf_loader_t * loader,int n); + + /* Get filename (for debug). */ + const char * (*fname) (struct nsf_loader_t * loader); + +}; + /* Function prototypes */ -extern void nsf_init(void); +extern int nsf_init(void); -extern nsf_t *nsf_load(char *filename, void *source, int length); +extern nsf_t * nsf_load_extended(struct nsf_loader_t * loader); +extern nsf_t *nsf_load(const char *filename, void *source, int length); extern void nsf_free(nsf_t **nsf_info); -extern void nsf_playtrack(nsf_t *nsf, int track, int sample_rate, int sample_bits, - boolean stereo); +extern int nsf_playtrack(nsf_t *nsf, int track, int sample_rate, + int sample_bits, boolean stereo); extern void nsf_frame(nsf_t *nsf); -extern void nsf_setchan(nsf_t *nsf, int chan, boolean enabled); -extern void nsf_setfilter(nsf_t *nsf, int filter_type); +extern int nsf_setchan(nsf_t *nsf, int chan, boolean enabled); +extern int nsf_setfilter(nsf_t *nsf, int filter_type); #endif /* _NSF_H_ */ /* ** $Log: nsf.h,v $ -** Revision 1.3 2007/01/18 21:34:10 dgp85 -** __attribute__(packed) is used on the struct, not on its members. +** Revision 1.3 2003/05/01 22:34:20 benjihan +** New NSF plugin ** -** Revision 1.2 2003/12/05 15:55:01 f1rmb -** cleanup phase II. use xprintf when it's relevant, use xine_xmalloc when it's relevant too. Small other little fix (can't remember). Change few internal function prototype because it xine_t pointer need to be used if some xine's internal sections. NOTE: libdvd{nav,read} is still too noisy, i will take a look to made it quit, without invasive changes. To be continued... +** Revision 1.2 2003/04/09 14:50:32 ben +** Clean NSF api. ** -** Revision 1.1 2003/01/08 07:04:35 tmmm -** initial import of Nosefart sources +** Revision 1.1 2003/04/08 20:53:00 ben +** Adding more files... ** ** Revision 1.11 2000/07/04 04:59:24 matt ** removed DOS-specific stuff |