Reconfigurable high performance texture pipeline with advanced filtering

Circuits, methods, and apparatus that provide texture caches and related circuits that store and retrieve texels in a fast and efficient manner. One such texture circuit provides an increased number of bilerps for each pixel in a group of pixels, particularly when trilinear or aniso filtering is nee...

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Main Authors Minkin, Alexander L, McCormack, Joel J, Heckbert, Paul S, Toksvig, Michael J. M, Chang, Luke Y, Abdalla, Karim, Hong, Bo, Berendsen, John W, Donovan, Walter, Kilgariff, Emmett M
Format Patent
LanguageEnglish
Published 19.01.2010
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Abstract Circuits, methods, and apparatus that provide texture caches and related circuits that store and retrieve texels in a fast and efficient manner. One such texture circuit provides an increased number of bilerps for each pixel in a group of pixels, particularly when trilinear or aniso filtering is needed. For trilinear filtering, texels in a first and second level of detail are retrieved for a number of pixels during a clock cycle. When aniso filtering is performed, multiple bilerps can be retrieved for each of a number of pixels during one clock cycle.
AbstractList Circuits, methods, and apparatus that provide texture caches and related circuits that store and retrieve texels in a fast and efficient manner. One such texture circuit provides an increased number of bilerps for each pixel in a group of pixels, particularly when trilinear or aniso filtering is needed. For trilinear filtering, texels in a first and second level of detail are retrieved for a number of pixels during a clock cycle. When aniso filtering is performed, multiple bilerps can be retrieved for each of a number of pixels during one clock cycle.
Author Kilgariff, Emmett M
Toksvig, Michael J. M
Abdalla, Karim
Heckbert, Paul S
Chang, Luke Y
Minkin, Alexander L
McCormack, Joel J
Hong, Bo
Donovan, Walter
Berendsen, John W
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References Gabriel et al. (6005582) 19991200
Spangler (6947054) 20050900
Marshall et al. (2007/0229530) 20071000
Minkin (7027063) 20060400
Minkin (6924811) 20050800
Donovan et al. (2008/0211827) 20080900
Kilgariff et al. (6778181) 20040800
Liao et al. (2004/0257376) 20041200
Morgan et al. (6756989) 20040600
Newhall et al. (7525551) 20090400
Ewins (2002/0126133) 20020900
Morein et al. (6897871) 20050500
Spangler (2004/0119720) 20040600
Donovan et al. (7167183) 20070100
Mukherjee et al. (6664971) 20031200
U.S. Appl. No. 11/960,645, filed Dec. 19, 2007.
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