He can adopt you without your bio. father's permission after you turn 18.
If bio. father won't voluntarily terminate his parental rights, it makes it much harder to terminate his parental rights. It's not impossible just much harder. Terminating a person's parental rights is permanent and considered severe so the judges only do this after much consideration. It can be done but the bio. parent is given every benefit of the doubt. Termination is a complex matter and cannot be adequately addressed in this small space.
Not unless the facts of your particular case would qualify for an involuntary termination of the parent child relationship which is the first step that mustbe completed before you qualify for an adoption in the state of Texas.