US Patent 9466090 Subset based compression and decompression of graphics data

Techniques related to graphics rendering including techniques for compression and/or decompression of graphics data by use of indexed subsets are described. In one example, compression in graphics rendering may include determining a plurality of color values associated with individual pixels of a tile of pixels, generating a subset of the plurality of color values such that the subset of the plurality of color values include one or more distinct color values from the plurality of color values, associating an index value with each color value of the subset of the plurality of color values, determining, for each of the individual pixels, an associated pixel index value to generate a plurality of pixel index values associated with the individual pixels of the tile of pixels, storing, in memory, graphics data including the subset of the plurality of color values, the associated index values, and the plurality of pixel index values.