Microsoft Technology Licensing, LLC

Jeff B Widergren

Thomas R Young

B Anil Kumar

Vladimir Stoyanov

Sridhar Sankuratri

Damien Gerard Saint Macary

Hon Luu

Hua Zhou

Kai Chee Li

Hao Guo

Francis A Palita

Jackson Tung

Example embodiments of the present disclosure provide techniques for efficiently processing and transmitting graphics data when sub-regions of the screen represented by the graphics data are updated at different relative update rates. In an embodiment, when the screen is divided into tiles and a plurality of the tiles have been determined as being changed, some of the sublevels resulting from the image transform may not be encoded and transmitted. The decoding process may use zeroes for any data not received. The rendering subsystem may render the image with the partial data, and the remaining data may be received in subsequent transmissions.

Real-time compression with GPU/CPU

Disclosed are methods and systems for tracking which data tiles have changed within an image frame. In an embodiment, each cell of a tile change list buffer may contain a frame number and updated when a tile is received from encoder. The frame number may be used as a base pointer for a particular frame buffer. When a frame is decoded, the contents of the tile change list buffer may be copied from the current tile change list buffer to the next buffer. This process may reduce memory traffic because the unchanged tile data does not have to be copied from frame to frame.

Image frame buffer management

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Mountain View, CA, United States of America

Jeff B Widergren