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#include <iostream>
#include <fstream>
#include <string>
#include <bitset>
#include <ctime>
#include <algorithm>
#include "math.h"
using namespace std;
//int source[]={76,56,94,12,91,23,52,98,16,23,42,12,57,39,90,52,46,4,72,27,93};
int source[50];
unsigned char komp[100];
int dekomp[50];
const unsigned long bit_mask[] = {
0x00000000, 0x00000001, 0x00000003, 0x00000007,
0x0000000f, 0x0000001f, 0x0000003f, 0x0000007f,
0x000000ff, 0x000001ff, 0x000003ff, 0x000007ff,
0x00000fff, 0x00001fff, 0x00003fff, 0x00007fff,
0x0000ffff, 0x0001ffff, 0x0003ffff, 0x0007ffff,
0x000fffff, 0x001fffff, 0x003fffff, 0x007fffff,
0x00ffffff, 0x01ffffff, 0x03ffffff, 0x07ffffff,
0x0fffffff, 0x1fffffff, 0x3fffffff, 0x7fffffff,
0xffffffff
};
bool GetBit( unsigned char ch, int i )
{
unsigned char mask = 1 << i;
return mask & ch ;
}
int countBit()
{
unsigned long numBit=0, tes=0, count=0, total=0, mean=0;
short tempInput;
for(unsigned int i=0;i<20;i++)
{
tempInput = source[i];
if(tempInput<0)
tempInput = tempInput*-1;
total = total + tempInput;
}
mean = log2(ceil(total/=20));
return mean;
}
int RiceEncode(int M)
{
int num, bits=0, count=0, rem;
int c=0, sign;
unsigned long code=0, temp=0;
cout<<"q: ";
for(int i=0;i<20;i++)
{
num = source[i];
temp = source[i];
if(num<0)
{
num = -1 * num;
sign= -1;
}
else
sign=1;
int q = num>>M;
cout<<q<<", ";
rem = num&bit_mask[M];
code = code|(bit_mask[q]<<bits); // unary
bits=bits+q;
while(bits>=8)
{
komp[count]=code&bit_mask[8];
code=code>>8;
bits-=8;
count++;
}
bits++; // terminator
for(int j=0;j<M;j++) // binary
{
code=code|((rem&1)<<bits);
bits++;
rem=rem>>1;
while(bits>=8)
{
komp[count]=code&bit_mask[8];
code=code>>8;
bits-=8;
count++;
}
}
if(sign<0) // sign negatif
{
code = code | (1<<bits);
bits++;
}
else // sign positif
bits++;
while(bits>=8)
{
komp[count]=code&bit_mask[8];
code=code>>8;
bits-=8;
count++;
}
}
while(bits>0)
{
komp[count]=code&bit_mask[8];
code=code>>8;
bits-=8;
count++;
}
return count;
}
void RiceDecode(int M, int Count)
{
int q = 0, a=0, count=0;
int bitC=0, tempRem=0;
int v=0, proses=0, sign;
bool flag=false, bitFlag=false;
cout<<endl;
cout<<"q: ";
for(int i=0;i<Count;i++)
{
bitC=0;
//cout<<" "<<int(komp[i])<<" ";
while(bitC<8)
{
if(bitFlag==true)
{
if(GetBit(komp[i],bitC)==true)
sign= -1;
else
sign= 1;
dekomp[count]=((q<<M)+tempRem)*sign;
a=0;
q=0;
tempRem=0;
count++;
flag=false;
bitFlag=false;
}
else
{
if(flag==false)
{
if(GetBit(komp[i],bitC)==true)
q++;
else
{
cout<<q<<", ";
flag=true;
}
}
else
{
tempRem=tempRem+(GetBit(komp[i],bitC)<<a);
a++;
if(a==M)
{
/*dekomp[count]=(q<<M)+tempRem;
a=0;
q=0;
tempRem=0;
count++;
flag=false;*/
bitFlag=true;
}
}
}
bitC++;
}
}
cout<<"\ncount: "<<count;
}
int main()
{
int iSecret, iGuess, parameter;
ofstream fout;
//fout.open("/home/crayon66/Data/tesRand", ios::binary);
//char code_write;
srand ( time(NULL) );
cout<<"A: ";
for(int i=0;i<20;i++)
{
iSecret = rand() % 100 - 50;
source[i]=iSecret;
cout<<source[i]<<", ";
}
cout<<endl;
parameter=countBit();
cout<<"parameter: "<<parameter<<endl;
iGuess=RiceEncode(parameter);
cout<<"\nK: ";
for(int i=0;i<iGuess;i++)
{
cout<<int(komp[i])<<", ";
//printf("%0x, ",char(komp[i]));
}
RiceDecode(parameter, iGuess);
cout<<"\nD: ";
for(int i=0;i<20;i++)
{
cout<<int(dekomp[i]);
cout<<", ";
//printf("%i, ",dekomp[i]);
}
return 0;
}
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