/*
?*?liblzs.c
?*
?*?Copyright?（C）?Beijing?Soul.
?*
?*?Hu?gang?
?*
?*?A?compatible?LZX?base?compress/uncompress?
?*
?*/
#ifndef?__KERNEL__
#include?
#include?
#include?
#include?
typedef?uint8_t??u8;
typedef?uint16_t?u16;
typedef?uint32_t?u32;
#else
#include?
#include?
#include?
#undef?DEBUG
#endif

#include?“liblzs.h“

struct?sk_buff?{
????????int?len;
????????int?data_len;
????????unsigned?char?*head;
????????unsigned?char?*data;
????????unsigned?char?*tail;
????????unsigned?char?*end;
};

#ifdef?DEBUG
static?FILE?*fp_debug;
#define?dprintf（format?arg...）?\
????????do?{\
????????????????fprintf（fp_debug?“%s:%d:“?format?__FUNCTION__?\
????????????????????????????????__LINE__?##?arg）;?\
????????}?while?（0）
#else
#define?dprintf（format?arg...）?\
????????do?{}?while?（0）
#endif

static?void?skb_put（struct?sk_buff?*skb?unsigned?int?len?unsigned?char?byte）
{
????????dprintf（“%02x?%02x\n“?skb->len?byte）;
????????*skb->data?=?byte;
????????skb->data?++;
????????skb->len?++;
}

typedef?struct?_lzs_state?{
????????u32?word;
????????int?left;
????????u8?*inbuf;
????????int?inlen;
????????u8?zstuff;
????????u16?ccnt;
}?LZSState;

static?int
putBits（LZSState?*s?struct?sk_buff?*skbout?u32?bits?int?len）
{
????????u8?byte;

????????dprintf（“%04x?%x\n“?bits?len）;
????????s->word?<<=?len;
????????s->word?|=?bits;
????????s->left?+=?len;

????????while（s->left?>=?8）?{
????????????????s->left?-=?8;
????????????????byte?=?s->word?>>?（s->left）;
????????????????skb_put（skbout?1?byte）;
????????}
????????if?（skbout->len?>=?skbout->data_len）
????????????????return?-1;

????????return?0;
}

static?int
putLiteralByte（LZSState?*s?struct?sk_buff?*skbout?u8?byte）
{
????????if?（putBits（s?skbout?0?1）?!=?0）
????????????????return?-1;
????????if?（putBits（s?skbout?byte?8）?!=?0）
????????????????return?-1;
????????return?0;
}

static?int
putOffset（LZSState?*s?struct?sk_buff?*skbout?u32?offs）
{
????????int?off;
????????if（offs?????????????????off?=?3?<????????????????dprintf（“%x\n“?off）;
????????????????if?（putBits（s?skbout?3?2）?!=?0）
????????????????????????return?-1;
????????????????if?（putBits（s?skbout?offs?7）?!=?0）
????????????????????????return?-1;
????????}?else?{
????????????????off?=?2?<????????????????dprintf（“%x\n“?off）;
????????????????if?（putBits（s?skbout?2?2）?!=?0）
????????????????????????return?-1;
????????????????if?（putBits（s?skbout?offs?11）?!=?0）
????????????????????????return?-1;
????????}
????????return?0;
}

static?int
putLen（LZSState?*s?struct?sk_buff?*skbout?u32?index?int?len）
{
????????int?res;

????????switch（len）?{
????????????????case?2:
????????????????????????res?=?putBits（s?skbout?0?2）;
????????????????????????break;
????????????????case?3:
????????????????????????res?=?putBits（s?skbout?1?2）;
????????????????????????break;
????????????????case?4:
???????????????????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2013-02-13?08:13??lzs-master\
?????文件???????18011??2013-02-13?08:13??lzs-master\LICENSE.GPL
?????文件?????????140??2013-02-13?08:13??lzs-master\Makefile
?????目錄???????????0??2013-02-13?08:13??lzs-master\common\
?????文件???????12829??2013-02-13?08:13??lzs-master\common\fifo_control.v
?????文件????????5230??2013-02-13?08:13??lzs-master\common\synchronizer_flop.v
?????文件???????12738??2013-02-13?08:13??lzs-master\common\tpram.v
?????目錄???????????0??2013-02-13?08:13??lzs-master\decode\
?????目錄???????????0??2013-02-13?08:13??lzs-master\decode\bench\
?????目錄???????????0??2013-02-13?08:13??lzs-master\decode\bench\verilog\
?????文件?????????629??2013-02-13?08:13??lzs-master\decode\bench\verilog\Makefile
?????文件????????1403??2013-02-13?08:13??lzs-master\decode\bench\verilog\tb.dino
?????文件????????5172??2013-02-13?08:13??lzs-master\decode\bench\verilog\tb.v
?????文件????????3786??2013-02-13?08:13??lzs-master\decode\bench\verilog\tb_data.v
?????目錄???????????0??2013-02-13?08:13??lzs-master\decode\rtl\
?????目錄???????????0??2013-02-13?08:13??lzs-master\decode\rtl\verilog\
?????文件????????3429??2013-02-13?08:13??lzs-master\decode\rtl\verilog\decode.v
?????文件????????6085??2013-02-13?08:13??lzs-master\decode\rtl\verilog\decode_ctl.v
?????文件????????2728??2013-02-13?08:13??lzs-master\decode\rtl\verilog\decode_in.v
?????文件????????1418??2013-02-13?08:13??lzs-master\decode\rtl\verilog\decode_out.v
?????文件????????9125??2013-02-13?08:13??lzs-master\decode\rtl\verilog\generic_tpram.v
?????目錄???????????0??2013-02-13?08:13??lzs-master\docs\
?????文件??????149479??2013-02-13?08:13??lzs-master\docs\decode.pdf
?????文件????????2823??2013-02-13?08:13??lzs-master\docs\decode.tex
?????文件??????149588??2013-02-13?08:13??lzs-master\docs\encode.pdf
?????文件????????3712??2013-02-13?08:13??lzs-master\docs\encode.tex
?????文件???????24952??2013-02-13?08:13??lzs-master\docs\lzs.pdf
?????文件???????19573??2013-02-13?08:13??lzs-master\docs\pdl_std.html
?????文件???????45267??2013-02-13?08:13??lzs-master\docs\rfc1974.txt
?????目錄???????????0??2013-02-13?08:13??lzs-master\edk\
?????目錄???????????0??2013-02-13?08:13??lzs-master\edk\pcores\
............此處省略87個文件信息