#include <stdio.h>
#include <iostream>
using namespace std;

struct palette
{
unsigned char rgbBlue;
unsigned char rgbGreen;
unsigned char rgbRed;
unsigned char rgbReserved;
};

void main()
{
int i,j;
unsigned short int bfType;
int bfSize;
unsigned short int bfReserved1;
unsigned short int bfReserved2;
int bfOffBits;

int biSize;
int biWidth;
int biHeight;
unsigned short int   biPlanes;
unsigned short int   biBitCount;
int  biCompression;
int  biSizeImage;
int   biXPelsPerMeter;
int   biYPelsPerMeter;
int  biClrUsed;
int  biClrImportant;

struct palette pal[256];
unsigned char ** immagine;

FILE *fp,*fpout;
fp = fopen ("gate.bmp","rb");
fpout=fopen("immagine.bmp","wb");

fread (&bfType, sizeof(unsigned short int),1,fp);
fread (&bfSize, sizeof(int),1,fp);
fread (&bfReserved1, sizeof(unsigned short int),1,fp);
fread (&bfReserved2, sizeof(unsigned short int),1,fp);
fread (&bfOffBits, sizeof(int),1,fp);

fread (&biSize, sizeof(int),1,fp);
fread (&biWidth, sizeof(int),1,fp);
fread (&biHeight, sizeof(int),1,fp);
fread (&biPlanes, sizeof(unsigned short int),1,fp);
fread (&biBitCount, sizeof(unsigned short int),1,fp);
fread (&biCompression, sizeof(int),1,fp);
fread (&biSizeImage, sizeof(int),1,fp);
fread (&biXPelsPerMeter, sizeof(int),1,fp);

fread (&biYPelsPerMeter, sizeof(int),1,fp);
fread (&biClrUsed, sizeof(int),1,fp);
fread (&biClrImportant, sizeof(int),1,fp);

fread (pal, sizeof(pal), 1 ,fp);
biWidth=(int)64;
biHeight=(int)64;

immagine = new unsigned char*[biHeight];
for (i=0; i < biHeight; i++)
    immagine[i]= new unsigned char[biWidth];

//SCRITTURA HEADER BMP

fwrite (&bfType, sizeof(unsigned short int),1,fpout);
fwrite (&bfSize, sizeof(int),1,fpout);
fwrite (&bfReserved1, sizeof(unsigned short int),1,fpout);
fwrite (&bfReserved2, sizeof(unsigned short int),1,fpout);
fwrite (&bfOffBits, sizeof(int),1,fpout);

fwrite (&biSize, sizeof(int),1,fpout);
fwrite (&biWidth, sizeof(int),1,fpout);
fwrite (&biHeight, sizeof(int),1,fpout);
fwrite (&biPlanes, sizeof(unsigned short int),1,fpout);
fwrite (&biBitCount, sizeof(unsigned short int),1,fpout);
fwrite (&biCompression, sizeof(int),1,fpout);
fwrite (&biSizeImage, sizeof(int),1,fpout);
fwrite (&biXPelsPerMeter, sizeof(int),1,fpout);

fwrite (&biYPelsPerMeter, sizeof(int),1,fpout);
fwrite (&biClrUsed, sizeof(int),1,fpout);
fwrite (&biClrImportant, sizeof(int),1,fpout);
//fwrite (pal, sizeof(pal), 1 ,fpout);

for (i=0 ; i < biHeight ; i++)
{
    for(j=0; j<biWidth; j++)
    {
    if((i+j)%2==0) immagine[i][j]=255;
    else immagine[i][j]=0;

    }
};




    for (i=0 ; i < biHeight ; i++)
{
    for(j=0; j<biWidth; j++)
    {
    fwrite(&immagine[i][j], sizeof(unsigned char),1,fpout);
    };
};

fclose(fp);
fclose(fpout);


}