Algorithm ByteRun, decompression gone wrong, .bmp - c++

Question

I have a little problem with algorithm ByteRun(very similar to RLE). Well when i make the decompression smth go wrong and my output isn't the same as input. The orginal cookie is saved in format .bmp (24 pixels). The output should be our format eg. ".xd".
I saw (as far) only 4 options and it depends on how many pixels we have in width.
for 421 we have
for 422 we have
for 423 we have
and for 424 we have
and the original:
Tbh I thought that I consider padding but idk what makes my poor cookie broke. :( Please help me save the cookie. :D
#include <iostream>
#include <stdlib.h>
#include <fstream>
using namespace std;
struct colour // structure of every pixel BGR
{
unsigned char b;
unsigned char g;
unsigned char r;
};
unsigned int reading_and_writing_the_header(FILE *file_in, FILE *file_out, unsigned char header[])
{
unsigned int width = 0;
unsigned int height = 0;
unsigned int bite_for_pixel = 0;
unsigned int amount_of_pixels = 0;
unsigned int padding = 0;
unsigned int row = 0;
fread(header, 1, 54, file_in); // reading the header // 1=sizeof(unsigned int) = sizof(uni8_t)
fwrite(header, 1, 54, file_out); // wrting header
width = *(unsigned int*)&header[18];
height = *(unsigned int*)&header[22];
bite_for_pixel = *(unsigned int*)&header[28];
padding = width % 4; // counting padding
row = width * 3 + padding; // bites in a row
amount_of_pixels = height * row; // amount of bites after header
return amount_of_pixels;
}
void compression_ByteRun(FILE *file_in,FILE *file_out, unsigned int aop)
{
colour *q = new colour[aop];
fread(q, 1, aop, file_in);
int k = 0;
colour x, y;
int counter1 = 0;
int counter2 = 0;
char *the_same_colours = new char[4];
char *diffrent_colours = new char[128 * 3 + 1];
while (k < (aop / 3))
{
x = q[k];
y = q[k + 1];
if (x.r == y.r && x.b == y.b && x.g == y.g) //if the same R and B and G
{
if (counter1 == 126) // not sure about what exactly should be here
{
the_same_colours[0] = (counter1)*(-1);
fwrite(the_same_colours, 1, 4, file_out);
counter1 = 0;
}
if (counter2 != 0)
{
diffrent_colours[0] = counter2 / 3 - 1;
fwrite(diffrent_colours, 1, counter2 + 1, file_out);
counter2 = 0;
}
counter1++;
k++;
continue;
}
else // if we have diffrent colours side by side
{
if (counter1 != 0)
{
the_same_colours[0] = (counter1)*(-1);
the_same_colours[1] = x.b;
the_same_colours[2] = x.g;
the_same_colours[3] = x.r;
fwrite(the_same_colours, 1, 4, file_out);
counter1 = 0;
k++;
}
else
{
diffrent_colours[counter2 + 1] = x.b;
diffrent_colours[counter2 + 2] = x.g;
diffrent_colours[counter2 + 3] = x.r;
counter2 = counter2+ 3;
if (counter2 / 3 == 127) // same here, not sure about what exactly should be here
{
diffrent_colours[0] = counter2 / 3 - 1;
fwrite(diffrent_colours, 1, counter2 + 1, file_out);
counter2 = 0;
}
k++;
}
}
}
}
void decompression_ByteRun(FILE *file_in,FILE *file_out)
{
char x; // variavle where we keep how many colours we need 2 write
char y, z, o; // variables for comparing values
bool game_over; // variable for checking if the file isn't over
game_over = fread(&x, 1, 1, file_in);
while (game_over == true)
{
if (x >= 0) // if we had diffrent colours side by dide
{
for (int i = 1; i <= x * 3 + 3; i++)
{
fread(&y, 1, 1, file_in);
fwrite(&y, 1, 1, file_out);
}
game_over = fread(&x, 1, 1, file_in);
continue;
}
else // if we have the same colours
{
fread(&z, 1, 1, file_in);
fread(&o, 1, 1, file_in);
fread(&y, 1, 1, file_in);
for (int i = 1; i <= (-(x)+1); i++)
{
fwrite(&z, 1, 1, file_out);
fwrite(&o, 1, 1, file_out);
fwrite(&y, 1, 1, file_out);
}
game_over = fread(&x, 1, 1, file_in);
}
}
}
int main()
{
FILE *file_in;
FILE *file_out;
int number = 0;
char* name = new char;
char* name_out = new char;
unsigned char header[54];
unsigned int amount_of_pixels = 0;
cout << "Write input file: " << endl;
cin >> name;
cout << endl;
cout << "Write output file:" << endl;
cin >> name_out;
cout << endl;
cout << "What u wanna do (1- compression or 2- decompression ";
cin >> number;
file_in = fopen(name, "rb");
if (file_in == NULL)
{
cout << "Error we couldn't open that file.\n Contact our IT group 4 more help" << endl;
system("PAUSE");
exit(0);
}
file_out = fopen(name_out, "wb");
if (file_out == NULL)
{
cout << "Error we couldn't open that file.\n Contact our IT group 4 more help" << endl;
system("PAUSE");
exit(0);
}
switch (number)
{
case 1:
cout << "Compression Byterun" << endl;
amount_of_pixels = reading_and_writing_the_header(file_in, file_out, header);
compression_ByteRun(file_in, file_out, amount_of_pixels);
break;
case 2:
cout << "Decompression Byterun" << endl;
amount_of_pixels = reading_and_writing_the_header(file_in, file_out, header);
decompression_ByteRun(file_in, file_out);
break;
}
system("PAUSE");
return 0;
}