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50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
#ifndef LIBMIO0_H_
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#define LIBMIO0_H_
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// defines
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#define MIO0_HEADER_LENGTH 16
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// typedefs
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typedef struct
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{
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unsigned int dest_size;
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unsigned int comp_offset;
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unsigned int uncomp_offset;
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} mio0_header_t;
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// function prototypes
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// decode MIO0 header
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// returns 1 if valid header, 0 otherwise
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int mio0_decode_header(const unsigned char *buf, mio0_header_t *head);
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// encode MIO0 header from struct
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void mio0_encode_header(unsigned char *buf, const mio0_header_t *head);
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// decode MIO0 data in memory
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// in: buffer containing MIO0 data
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// out: buffer for output data
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// end: output offset of the last byte decoded from in (set to NULL if unwanted)
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// returns bytes extracted to 'out' or negative value on failure
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int mio0_decode(const unsigned char *in, unsigned char *out, unsigned int *end);
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// encode MIO0 data in memory
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// in: buffer containing raw data
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// out: buffer for MIO0 data
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// returns size of compressed data in 'out' including MIO0 header
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int mio0_encode(const unsigned char *in, unsigned int length, unsigned char *out);
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// decode an entire MIO0 block at an offset from file to output file
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// in_file: input filename
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// offset: offset to start decoding from in_file
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// out_file: output filename
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int mio0_decode_file(const char *in_file, unsigned long offset, const char *out_file);
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// encode an entire file
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// in_file: input filename containing raw data to be encoded
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// out_file: output filename to write MIO0 compressed data to
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int mio0_encode_file(const char *in_file, const char *out_file);
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#endif // LIBMIO0_H_
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