Miscellany

#include <iostream>
#include <fstream>

#include "include/zlib.h"

using namespace std;

int main(void) {
    /*char buffer[4096];
    char compressed[4096];
    ifstream file("test.bmp", ios::in | ios::binary | ios::ate);
    int size = file.tellg();
    file.seekg(ios::beg);
    memset(buffer, 0, 4096);    
    file.read(buffer, size);
    cout << buffer;
    int out = 4096;
    compress((Bytef*)compressed, (uLongf*)&out, (const Bytef*)buffer, size);
    std::ofstream outfile("test.dat");
    outfile.write(compressed, out);
    return 0;*/

    /*char buffer[4096];
    char uncompressed[4096];
    std::ifstream file("test.dat", ios::in|ios::binary|ios::ate);
    int size = file.tellg();
    file.seekg(ios::beg);
    memset(buffer, 0, 4096);
    file.read(buffer, size);
    int out = 4096;
    uncompress((Bytef*)uncompressed, (uLongf*)&out, (const Bytef*)buffer, 1000);
    std::ofstream outfile("out.bmp");
    outfile.write(uncompressed, out);
    return 0;*/

    z_stream strm;
    strm.zalloc = Z_NULL;
    strm.zfree = Z_NULL;
    strm.opaque = Z_NULL;
    strm.avail_in = 0;
    strm.next_in = Z_NULL;
    inflateInit(&strm);

    char buffer[4096];
    char uncompressed[4096];
    std::ifstream file("test.dat", ios::in|ios::binary|ios::ate);
    int size = file.tellg();
    file.seekg(ios::beg);
    memset(buffer, 0, 4096);
    file.read(buffer, size);
    int out = 4096;

    do {
        strm.avail_in = size;
        strm.next_in = (Bytef *)buffer;
        strm.avail_out = 4096;
        strm.next_out = (Bytef *)uncompressed;
        inflate(&strm, Z_NO_FLUSH);
    }while(strm.avail_out == 0);

    inflateEnd(&strm);

    return 0;

}