Computer graphics processing and selective visual display system – Computer graphics display memory system – Graphic display memory controller
Reexamination Certificate
2008-12-01
2010-12-07
Wu, Xiao M (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics display memory system
Graphic display memory controller
C345S544000, C345S422000
Reexamination Certificate
active
07847802
ABSTRACT:
A graphics system coalesces Z data and color data for a raster operations stage. The Z data and color data are stored in a memory aligned tile format. In one embodiment, rendering modes in which the tile does not have a data capacity corresponding to Z data or color data for a whole number of pixels have data for at least one pixel split across entries to improve packing efficiency. Rendering modes having a number of bits for Z data or color data that does not equal a power of two such as 24 bits, 48 bits, and 96 bits, may be implemented with a high packing efficiency in tile formats having a data capacity corresponding to a power of 2 bits.
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Alben Jonah M.
Bittel Donald A.
Hsia Dorcas T.
McAllister David Kirk
Cooley LLP
Ma Tize
NVIDIA Corporation
Wu Xiao M
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