Graphics discard engine

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12236529
APP PUB NO 20230206559A1
SERIAL NO

17562653

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Abstract

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Systems, apparatuses, and methods for implementing a discard engine in a graphics pipeline are disclosed. A system includes a graphics pipeline with a geometry engine launching shaders that generate attribute data for vertices of each primitive of a set of primitives. The attribute data is consumed by pixel shaders, with each pixel shader generating a deallocation message when the pixel shader no longer needs the attribute data. A discard engine gathers deallocations from multiple pixel shaders and determines when the attribute data is no longer needed. Once a block of attributes has been consumed by all potential pixel shader consumers, the discard engine deallocates the given block of attributes. The discard engine sends a discard command to the caches so that the attribute data can be invalidated and not written back to memory.

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Patent Owner(s)

Patent OwnerAddress
ATI TECHNOLOGIES ULCONE COMMERCE VALLEY DRIVE EAST MARKHAM L3T 7X6

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brennan, Christopher J Boxborough, US 50 232
Chan, Anthony Markham, CA 33 634
Iu, Ricky Wai Yeung Markham, CA 1 0
Mirza, Jimshed Markham, CA 18 126
Pathak, Nishank Orlando, US 16 8
Ramsey, Randy Wayne Orlando, US 9 14

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