Progressive multisample anti-aliasing

A non-transitory machine-readable medium storing instructions, execution of which, causes one or more processors to perform operations comprising:

• compacting sample data for multiple sample locations of a pixel, wherein compacting the sample data includes storing only unique color values within the sample data to memory locations associated with the sample data;
• mapping the multiple sample locations to memory locations that store compacted sample data, the memory locations in a memory of a graphics processor;
• applying lossless compression to the compacted sample data;
• and
• updating a compression control surface associated with the memory locations, the compression control surface to specify a compression status for the memory locations.

A data processing system comprising:

• a memory device;
• and
• a graphics processor coupled with the memory device, the graphics processor comprising circuitry configured to:
• compact sample data for multiple sample locations of a pixel, wherein to compact the sample data, the circuitry is configured to store only unique color values within the sample data;
• map the multiple sample locations to memory locations that store compacted sample data, the memory locations in a memory of the graphics processor;
• apply lossless compression to the compacted sample data;
• and
• update a compression control surface associated with the memory locations, the compression control surface to specify a compression status for the memory locations.