| lzw压缩算法的c语言实现 |
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| 来源： 作者： 添加日期：2006-7-17 6:53:04 点击次数： |
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lzw->lp_prefix = GlobalLock( lzw->h_prefix );
lzw->lp_suffix = GlobalLock( lzw->h_suffix );
lzw->code = LZW_BASE;
lzw->cur_code_len = 9;
lzw->h_sour = h_sour;
lzw->h_dest = h_dest;
memset( lzw->lp_code, 0xFFFF, TABLE_LEN*sizeof(WORD) );
}
//------------------------------------------------------------------------------
VOID lzw_destory(PLZW_DATA lzw)
{
GlobalUnlock( lzw->h_code );
GlobalUnlock( lzw->h_prefix );
GlobalUnlock( lzw->h_suffix );
GlobalFree( lzw->h_code );
GlobalFree( lzw->h_prefix );
GlobalFree( lzw->h_suffix );
}
//------------------------------------------------------------------------------
#endif
(2) fileio.h 定义了一些文件操作
#ifndef __FILEIO_H__
#define __FILEIO_H__
//------------------------------------------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
//------------------------------------------------------------------------------
HANDLE file_handle(CHAR* file_name)
{
HANDLE h_file;
h_file = CreateFile(file_name,
GENERIC_READ|GENERIC_WRITE,
FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL,
OPEN_ALWAYS,
0,
NULL
);
return h_file;
}
//------------------------------------------------------------------------------
WORD load_buffer(HANDLE h_sour, PBUFFER_DATA buffer) // Load file to buffer
{
DWORD ret;
ReadFile(h_sour,buffer->lp_buffer,BUFFERSIZE,&ret,NULL); |
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