| 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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{
if( !in_table(lzw) )
{
// current code not in code table
// then add it to table and output prefix
insert_table(lzw);
prefix = lzw->suffix;
output_code( lzw->prefix ,out ,lzw );
lzw->code++;
if( lzw->code == (WORD)1<< lzw->cur_code_len )
{
// code reached current code top(1<<cur_code_len)
// then current code length add one
lzw->cur_code_len++;
if( lzw->cur_code_len == CODE_LEN + 1 )
{
re_init_lzw( lzw );
}
}
}
else
{
// current code already in code table
// then output nothing
prefix = get_code(lzw);
}
lzw->prefix = prefix;
lzw->suffix = in->lp_buffer[ in->index++ ];
}
}
//------------------------------------------------------------------------------
VOID encode(HANDLE h_sour,HANDLE h_dest)
{
LZW_DATA lzw;
BUFFER_DATA in ;
BUFFER_DATA out;
BOOL first_run = TRUE;
lzw_create( &lzw ,h_sour,h_dest ); |
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