US 6,982,719 B2 | ||
Switching sample buffer context in response to sample requests for real-time sample filtering and video generation | ||
Michael F. Deering, Los Altos, Calif. (US); Nathaniel David Naegle, Pleasanton, Calif. (US); and Michael G. Lavelle, Saratoga, Calif. (US) | ||
Assigned to Sun Microsystems, Inc., Santa Clara, Calif. (US) | ||
Filed on Jul. 15, 2002, as Appl. No. 10/195,827. | ||
Prior Publication US 2004/0008204 A1, Jan. 15, 2004 | ||
Int. Cl. G09G 5/399 (2006.01) |
U.S. Cl. 345—539 | 18 Claims |
1. A system comprising:
a scheduling network;
a sample buffer, wherein the sample buffer is operated in a double-buffered fashion;
a rendering engine configured to generate samples in response to received graphics data, and to forward the samples to the
scheduling network for storage in the sample buffer; and
a filtering engine configured to send a request for samples to the scheduling network,
wherein the scheduling network is configured
to compare a video set designation of the request to a previous request designation,
to update one or more state registers in one or more memory devices of the sample buffer in response to a determination that
the video set designation of the request is different from the previous request designation, and
to assert signals inducing a transfer of a collection of samples corresponding to the request from the one or more memory
devices to the filtering engine.
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