aplib_dec.c File Reference

Data Structures
struct	aplib_decompressor_t
	APLib decompressor. More...
struct	aplib_decompressor_t.partial

Macros
#define	MINMATCH3_OFFSET   1280
	Minimum match offset for 3-byte matches.
#define	MINMATCH4_OFFSET   32000
	Minimum match offset for 4-byte matches.

Functions
void	decompress_aplib_init (void *state, int fd, int winsize)
	Initialize APLIB decompressor.
void	decompress_aplib_reset (void *state)
	Reset APLIB decompressor state.
ssize_t	decompress_aplib_read (void *state, void *buf, size_t len)
	Read decompressed data from APLIB decompressor.
void *	decompress_aplib_full (const char *fn, int fd, size_t cmp_size, size_t size)
	Decompress entire APLIB file.

Detailed Description

Author

Giovanni Bajo giova.nosp@m.nnib.nosp@m.ajo@g.nosp@m.mail.nosp@m..com

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Data Structure Documentation

aplib_decompressor_t

struct aplib_decompressor_t

APLib decompressor.

Data Fields
uint8_t	buf[2][128]	Buffer of loaded data.
int	cur_buf	Current buffer being used.
uint8_t *	buf_ptr	Pointer to data being processed.
uint8_t *	buf_end	Pointer to end of current loaded data.
uint8_t	cc	Current byte being processed.
int	shift	Current bit being processed.
int	fd	File being read from.
uint32_t	rom_addr	ROM address being read from (optional)
bool	eof	Whether the end of the stream has been reached.
struct aplib_decompressor_t.partial	partial	Partial decompression state.

aplib_decompressor_t.partial

struct aplib_decompressor_t.partial

Data Fields
decompress_ringbuf_t	ringbuf	Ring buffer.
bool	first_literal_done	Whether the first literal has been written.
int	nlit	Number of expected literals.
int	match_off	Offset of the match.
int	match_len	Length of the match.