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(svn r5687) - Cleanup: Some cleanup and commentarizing.

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Darkvater 2006-07-31 22:26:11 +00:00
parent 4ba135d9be
commit ec7c9a5fc7
1 changed files with 8 additions and 7 deletions
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15
fileio.c
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@ -15,11 +15,11 @@
#define FIO_BUFFER_SIZE 512
typedef struct {
byte *buffer, *buffer_end;
uint32 pos;
FILE *cur_fh;
FILE *handles[64];
byte buffer_start[512];
byte *buffer, *buffer_end; ///< position pointer in local buffer and last valid byte of buffer
uint32 pos; ///< current (system) position in file
FILE *cur_fh; ///< current file handle
FILE *handles[64]; ///< array of file handles we can have open
byte buffer_start[FIO_BUFFER_SIZE]; ///< local buffer when read from file
} Fio;
static Fio _fio;
@ -34,7 +34,8 @@ void FioSeekTo(uint32 pos, int mode)
{
if (mode == SEEK_CUR) pos += FioGetPos();
_fio.buffer = _fio.buffer_end = _fio.buffer_start + FIO_BUFFER_SIZE;
fseek(_fio.cur_fh, (_fio.pos=pos), SEEK_SET);
_fio.pos = pos;
fseek(_fio.cur_fh, _fio.pos, SEEK_SET);
}
// Seek to a file and a position
@ -43,7 +44,7 @@ void FioSeekToFile(uint32 pos)
FILE *f = _fio.handles[pos >> 24];
assert(f != NULL);
_fio.cur_fh = f;
FioSeekTo(pos & 0xFFFFFF, SEEK_SET);
FioSeekTo(GB(pos, 0, 24), SEEK_SET);
}
byte FioReadByte(void)