Digital art undo and redo
US9129416B2 · kind B2 · utility
2Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2012 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Nov 16, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2210/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.