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core, groundwork for chd support

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still needs some scrutiny, and build integration is missing
This commit is contained in:
kub 2021-03-04 20:48:02 +01:00
parent 4da84f9454
commit 15ca715228
18 changed files with 411 additions and 100 deletions
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35
pico/pico.h
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@ -161,7 +161,8 @@ typedef enum
{
PMT_UNCOMPRESSED = 0,
PMT_ZIP,
PMT_CSO
PMT_CSO,
PMT_CHD
} pm_type;
typedef struct
{
@ -172,7 +173,9 @@ typedef struct
char ext[4];
} pm_file;
pm_file *pm_open(const char *path);
void pm_sectorsize(int length, pm_file *stream);
size_t pm_read(void *ptr, size_t bytes, pm_file *stream);
size_t pm_read_audio(void *ptr, size_t bytes, pm_file *stream);
int pm_seek(pm_file *stream, long offset, int whence);
int pm_close(pm_file *fp);
int PicoCartLoad(pm_file *f,unsigned char **prom,unsigned int *psize,int is_sms);
@ -255,14 +258,34 @@ enum media_type_e {
PM_CD,
};
enum cd_img_type
enum cd_track_type
{
CIT_NOT_CD = 0,
CIT_ISO,
CIT_BIN,
CIT_CUE
CT_UNKNOWN = 0,
// data tracks
CT_ISO = 1, /* 2048 B/sector */
CT_BIN = 2, /* 2352 B/sector */
// audio tracks
CT_MP3 = 3,
CT_WAV = 4,
CT_CHD = 5,
};
typedef struct
{
char *fname;
int pregap; /* pregap for current track */
int sector_offset; /* in current file */
int sector_xlength;
enum cd_track_type type;
} cd_track_t;
typedef struct
{
int track_count;
cd_track_t tracks[0];
} cd_data_t;
enum media_type_e PicoLoadMedia(const char *filename,
const char *carthw_cfg_fname,
const char *(*get_bios_filename)(int *region, const char *cd_fname),