Systems and methods for efficiently displaying graphics on a...

Details Systems and methods for efficiently displaying graphics on a... Systems and methods for efficiently displaying graphics on a...

2005-10-25

2005-10-25

Bella, Matthew C. (Department: 2676)

Computer graphics processing and selective visual display system

Computer graphics display memory system

Cache

C345S568000, C345S658000, C711S003000, C711S113000, C711S118000, C711S134000

Reexamination Certificate

active

06958757

ABSTRACT:
The method of one embodiment for the invention is for the CPU to read a subset of consecutive pixels from RAM and cache each such pixel in the WC Cache (and load corresponding blocks into the L2 Cache). These reads and loads continue until the capacity of the L2 Cache is reached, and then these blocks (a “band”) are iteratively processed until the entire band in the L2 Cache has been written to the frame buffer via the WC Cache. Once this is complete, the process then “dumps” the L2 Cache (that is, it ignores the existing blocks and allows them to be naturally pushed out with subsequent loads) and the next band of consecutive pixels is read (and their blocks loaded). This process continues until the portrait-oriented graphic is entirely loaded.

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