mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-28 05:51:04 +00:00
45 lines
994 B
C
45 lines
994 B
C
|
/*
|
||
|
|
* Helper functions to handle compression via zlib
|
||
|
|
*
|
||
|
|
* Copyright (C) 2007-2008 Julian Brown
|
||
|
|
* Copyright (C) 2008 Mike Frysinger
|
||
|
|
*
|
||
|
|
* Licensed under the GPL-2 or later.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __ELF2FLT_COMPRESS_H__
|
||
|
|
#define __ELF2FLT_COMPRESS_H__
|
||
|
|
|
||
|
|
#include <zlib.h>
|
||
|
|
|
||
|
|
typedef enum
|
||
|
|
{
|
||
|
|
INVALID,
|
||
|
|
UNCOMPRESSED,
|
||
|
|
COMPRESSED
|
||
|
|
} stream_type;
|
||
|
|
|
||
|
|
/* Tagged union holding either a regular FILE* handle or a zlib gzFile
|
||
|
|
handle. */
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
stream_type type;
|
||
|
|
const char *mode;
|
||
|
|
union
|
||
|
|
{
|
||
|
|
FILE *filep;
|
||
|
|
gzFile gzfilep;
|
||
|
|
} u;
|
||
|
|
} stream;
|
||
|
|
|
||
|
|
int fopen_stream_u(stream *fp, const char *path, const char *mode);
|
||
|
|
size_t fread_stream(void *ptr, size_t size, size_t nmemb, stream *str);
|
||
|
|
size_t fwrite_stream(const void *ptr, size_t size, size_t nmemb, stream *str);
|
||
|
|
int fclose_stream(stream *str);
|
||
|
|
int ferror_stream(stream *str);
|
||
|
|
int fseek_stream(stream *str, long offset, int whence);
|
||
|
|
void reopen_stream_compressed(stream *str);
|
||
|
|
void transfer(stream *ifp, stream *ofp, int count);
|
||
|
|
|
||
|
|
#endif
|