Microsoft Technology Licensing, LLC

Hans Thomas Landsberger

Jeffrey Alan Herold

Subha Bhattacharyay

Ira L Snyder, Jr

Fan Zhang

Kaushik Barat

Christopher Shannon Lester

John Adam Szofran

Gerard Zytnicki

The subject disclosure is directed towards saving undo state information for a digital art program. Changed state data is computed (e.g., via GPU-side logic) based upon the state information of the current state of a canvas and the previous state information, e.g., via an XOR operation or parallel XOR operations. The changed state data is compressed into compressed state data, e.g., via run-length encoding, and the compressed state data is stored, e.g., in a circular buffer in GPU memory. For an undo command, the compressed data is decompressed into the changed state data, and the bitwise operation reversed.

Digital art undo and redo

Growing community of inventors

Greenwich, CT, United States of America

Hans Thomas Landsberger