Microsoft Technology Licensing, LLC

Christopher Shannon Lester

Jeffrey Alan Herold

Subha Bhattacharyay

Ira L Snyder, Jr

Fan Zhang

Kaushik Barat

Gerard Zytnicki

John Adam Szofran

Hans Thomas Landsberger

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

Redmond, WA, United States of America

Christopher Shannon Lester