(a) If it is shown on the trial of a state jail felony punishable under Section 12.35(a) that the defendant has previously been finally convicted of two state jail felonies punishable under Section 12.35(a), on conviction the defendant shall be punished for a felony of the third degree.
(b) If it is shown on the trial of a state jail felony punishable under Section 12.35(a) that the defendant has previously been finally convicted of two felonies other than a state jail felony punishable under Section 12.35(a), and the second previous felony conviction is for an offense that occurred subsequent to the first previous conviction having become final, on conviction the defendant shall be punished for a felony of the second degree.
(c) If it is shown on the trial of a state jail felony for which punishment may be enhanced under Section 12.35(c) that the defendant has previously been finally convicted of a felony other than a state jail felony punishable under Section 12.35(a), on conviction the defendant shall be punished for a felony of the second degree.
Official text of the Texas Penal Code as published by the Texas Legislative Council.