majia1166
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bws图片解包
#include "stdafx.h"
#include <iostream>
using namespace std;
typedef unsigned char BYTE;
void uncompress(char *pak, char * file);
int _tmain(int argc, _TCHAR* argv[])
{
uncompress("C:\\Users\\Administrator\\Desktop\\压缩的数据", "C:\\Users\\Administrator\\Desktop\\face.ttx");
}
bool readbit(BYTE *p, int &pos, int &cur)
{
static int flag = 8;
if(flag == 0)
{
pos = cur++;
flag = 8;
}
return p[pos] & (1 << (flag---1));
}
void uncompress(char *pak, char * unpak)
{
FILE *f1 = fopen(pak, "rb");
FILE *f2 = fopen(unpak, "wb");
fseek(f1, 0, SEEK_END);
int f1len = ftell(f1);
fseek(f1, 0, SEEK_SET);
BYTE *f1buf = (BYTE*)malloc(f1len);
fread(f1buf, f1len, 1, f1);
fclose(f1);
int header = *(int*)(f1buf + 0);//TARC
int number = *(int*)(f1buf + 4);//file number
int offset = *(int*)(f1buf + 8);//point to filename
int unknown = *(int*)(f1buf + 0xc);//unknown
int offset1 = *(int*)(f1buf + 0x10);//point to first file (value>>1)
int size = *(int*)(f1buf + 0x14);//first filesize
int unknown1 = *(int*)(f1buf + 0x18);//fileID???
/*
0x1c uncompress size
0x20 compress size
0x24 compress data
-----------------------------------
解压后TTX图片格式
0x0 TTX0
0x4 总是0？
0x8 13：256色 14:16色
0xc 数据大小
0x10 宽
0x14 高
0x18 未知（缺失的调色板？）
0x1c 调色板大小
0x20 调色板+数据
*/
BYTE *p = (BYTE*)(f1buf+0x24);//data
BYTE *p1 = (BYTE*)malloc(0x4420);// 0x1c 0x4420 自己改
int controlpos = 0, datapos = 1, epos = 0;
while(epos < 0x4420)
{
if(readbit(p, controlpos, datapos))
p1[epos++] = p[datapos++];
else
{
int len = 0;
if(readbit(p, controlpos, datapos))
{
int t1 = (p[datapos] << 8) + p[datapos + 1];
datapos += 2;
len = t1 & 7;
t1 >>= 3;
t1 |= -0x2000;
if(len)
len += 2;
else
len = p[datapos++] +1;
for(int i = 0; i < len; ++i)
{
p1[epos] = p1[epos + t1];
++epos;
}
}
else
{
len = readbit(p, controlpos, datapos) * 2 + readbit(p, controlpos, datapos) + 2;
int tpos = 256 - p[datapos++];
for(int i = 0; i < len; ++i)
{
p1[epos] = p1[epos - tpos];
++epos;
}
}
}
}
fwrite(p1, 0x4420, 1, f2);//大小自己改
fclose(f2);
free(p1);
free(f1buf);
}
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[楼 主]
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Posted:2011-10-17 12:48| |
顶端
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火花天龙剑 -> 火炎之纹章 -> 火花学园 -> bws图片解包
