Methods and apparatuses for processing cached image data

摘要

Methods, software, and apparatuses for graphics processing, including caching pixel data of one or more tiles of a graphics surface. Methods generally include setting a caching bit corresponding to the surface, setting tile pattern bits corresponding to tiles in the surface, and when the caching bit is active, storing one or more pixel values in a cache memory. When at least one tile contains pixels having the same value for at least one predetermined parameter, the caching bit and the corresponding tile pattern bits may be active. Apparatuses generally include a pixel memory, a cache memory, and a controller including logic configured to reserve the caching bit, tile pattern bits, and same pixel values in cache memory when the caching bit is active.

主权项

1. An imaging apparatus for processing a graphics surface, wherein the graphics surface is defined by an array of tiles represented by a plurality of tile pattern bits, and wherein each tile of the array of tiles comprises a plurality of pixels, the imaging apparatus comprising:
a cache memory configured to store values related to the pluralities of pixels of the tiles of the array of tiles, wherein each value corresponds to a color of a particular pixel; and a processor configured to
determine that all pixels of the plurality of pixels of a particular tile have a same value thereby indicating that all pixels of the plurality of pixels of the particular tile are a same color, andin response to determining that all pixels of the plurality of pixels of the particular tile have the same value, set a tile pattern bit of the plurality of tile pattern bits to an active state, wherein the tile pattern bit corresponds to the particular tile.