Retro68/ResourceFiles/ResType.cc

#include "ResType.h"
#include <iostream>
#include <cassert>

ResType::ResType(const std::string &str)
{
    auto p = str.begin();
    auto e = str.end();

    assert(str.size() == 4);

    x = 0;
    while(p != e)
    {
        x <<= 8;
        x |= (*p) & 0xFF;
        ++p;
    }
}

ResType::ResType(const char *s)
{
    auto p = s;
    auto e = s + 4;

    assert(s[0] && s[1] && s[2] && s[3] && !s[4]);

    x = 0;
    while(p != e)
    {
        x <<= 8;
        x |= (*p) & 0xFF;
        ++p;
    }
}


ResType::operator std::string()
{
    char c1 = static_cast<char>(x >> 24);
    char c2 = static_cast<char>(x >> 16);
    char c3 = static_cast<char>(x >> 8);
    char c4 = static_cast<char>(x);

    return std::string{ c1, c2, c3, c4 };
}

std::ostream &operator<<(std::ostream &out, ResType t)
{
    char c1 = static_cast<char>((int)t >> 24);
    char c2 = static_cast<char>((int)t >> 16);
    char c3 = static_cast<char>((int)t >> 8);
    char c4 = static_cast<char>((int)t);

    out << "'" << c1 << c2 << c3 << c4 << "'";
    return out;
}