Origen, along with the early Catholic Church, insists on the basic necessity for a totally free will even unto the point of cooperation with or on the other hand rejection of salvation itself whereby we can justly say that each man has the ability to either have faith in Christ or reject it. In other words, salvation is earned not by man but is given by the grace of God as a free gift; it is heretical however to say that man has no interaction in the matter. The Calvinist doctrine of Total Depravity does not restrict man's free will in his ordinary course of life; only in the course of his salvation. That is, he is either granted salvation as a gift from God or he isn't and he is not able to seek God on his own. The doctrine of Irresistible Grace moreover teaches that this gift of God cannot be rejected by man - if one ends up being one of the select few chosen by God, the grace is "irresistible". Along with Unconditional Election, this doctrine flies squarely in the face of the brunt of Scripture with very few exceptions . Calvin wasn't the first to teach these doctrines though:
Let us begin, then, with those words which were spoken to Pharaoh, who is said to have been hardened by God, in order that he might not let the people go; and, along with his case, the language of the apostle also will be considered, where he says, Therefore He has mercy on whom He will, and whom He will He hardens. For it is on these passages chiefly that the heretics rely, asserting that salvation is not in our own power, but that souls are of such a nature as must by all means be either lost or saved; and that in no way can a soul which is of an evil nature become good, or one which is of a virtuous nature be made bad. - De Principiis 3.1.8As I have said before, every doctrine which deviates from Catholic teaching is either a heresy already dealt with by the Church or a derivation of one. And for those of you who don't know, I am a former Calvinist who was predestined to become Catholic.