Advanced Micro Devices Corporation

Chris Brennan

Timour T Paltashev

A method and apparatus for real time compressing randomly accessed data includes extracting a block of randomly accessed data from a memory hierarchy. One or more individual portions of the randomly accessed data are independently compressed in real time to create a lossless compressed image surface. The compressed image surface includes data of independently compressed image blocks for reading and decompressing in a random order. The method further includes storing structured information relating to the dynamically compressed randomly accessed data.

Method and apparatus for compressing randomly accessed data

A shader in a graphics pipeline accesses an object that represents a portion of a model of a scene in object space and one or more far-z values that indicate a furthest distance of a previously rendered portion of one or more tiles from a viewpoint used to render the scene on a screen. The one or more tiles overlap a bounding box of the object in a plane of the screen. The shader culls the object from the graphics pipeline in response to the one or more far-z values being smaller than a near-z value that represents a closest distance of a portion of the object to the viewpoint.

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Boxborough, MA, United States of America

Chris Brennan