Asymmetric two-pass graphics scaling

Details Asymmetric two-pass graphics scaling Asymmetric two-pass graphics scaling

2011-03-01

2011-03-01

Harrison, Chante (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Graphic manipulation

C345S667000, C345S668000, C345S661000

Reexamination Certificate

active

07898554

ABSTRACT:
A method and an apparatus for determining an up scale factor and a down scale factor according to a scale factor received from a graphics application program interface (API) to scale a graphics data in a graphics processing unit (GPU) are described. The up scale factor and the down scale factor may be precisely stored in the GPU based on a fixed number of bits. An actual scale factor which can be precisely stored in the GPU corresponding to the scale factor may differ from the scale factor with a difference. Graphics commands may be sent to the GPU to scale the graphics data according to the up scale factor and the down scale factor separately. A combined scale factor corresponding to a combination of the up scale factor and the down scale factor may differ from the scale factor less then the difference between the actual scale factor and the scale factor

REFERENCES:
patent: 7151863 (2006-12-01), Bradley et al.
patent: 7619639 (2009-11-01), Azar et al.
patent: 2004/0183817 (2004-09-01), Kaasila
patent: 2007/0230827 (2007-10-01), Haukijarvi et al.

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