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CD-ROM interface API to get raw track data, IOCTL now actually provides it, and IOCTL is now actually instantiable, as well as cleaned up a bit.

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OBattler
2024-11-25 21:23:28 +01:00
parent 971b3a0aba
commit 5c27083af6
11 changed files with 671 additions and 307 deletions
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27
src/include/86box/cdrom_image_backend.h
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@@ -57,7 +57,31 @@ typedef struct track_file_t {
int motorola;
} track_file_t;
#define BLOCK_EMPTY 0 /* Empty block. */
#define BLOCK_ZERO 1 /* Block not in the file, return all 0x00's. */
#define BLOCK_NORMAL 2 /* Block in the file. */
#define BLOCK_NONE ((uint64_t) -1LL)
typedef struct track_block_t {
/* Is the current block in the file? If not, return all 0x00's. */
int type;
/* The amount of bytes to skip at the beginning of each sector. */
int skip;
/* Starting and ending sector LBA - negative in order to accomodate LBA -150 to -1
to read the pregap of track 1. */
int64_t start_sector;
int64_t end_sector;
/* Starting and ending offset in the file. */
uint64_t start_offs;
uint64_t end_offs;
} track_block_t;
typedef struct track_t {
int pregap_len; /* Pre-gap - not in file. */
int index0_len; /* Pre-gap - in file. */
int postgap_len; /* Post-gap - not in file. */
int blocks_num; /* Number of blocks. */
int number;
int track_number;
int attr;
@@ -65,10 +89,11 @@ typedef struct track_t {
int mode2;
int form;
int pre;
int noskip; /* Do not skip by 8 bytes.*/
int noskip; /* Do not skip by 8 bytes.*/
uint64_t start;
uint64_t length;
uint64_t skip;
track_block_t blocks[256];
track_file_t *file;
} track_t;