tga_parser.cpp

static bool get_next_byte( std::istream& stream, char&c, std::string& log_ )
{
    if( !stream.eof() )
    {
        stream.get( c );
        log_ += c;
        return true;
    }
    return false;
}

// Load TGA 2.0
std::string TGAHelper::deserialize( std::filesystem::path p )
{
    
    std::ifstream file;
    std::string s;
    file.open( p, std::ifstream::in | std::ifstream::binary );
    char c = '\0';
    Header header;
    get_next_byte( file, c, s); // ID length
    header.id_length = c;
    get_next_byte( file, c, s ); // Color map type
    header.colour_map_type = c;
    get_next_byte( file, c, s );
    // works only on machine with byte > 3 bits
    header.data_type_code = c & (-1u >> ( CHAR_BIT - 3 ) ); // Data type
    header.RLE = (bool) (c & ( 1u << 4 ) ); // RLE compresion
    file.close();
    s += '\0';
    return s;
};