FIXED-SIZE IMAGE ALPHA CHANNEL COMPRESSION TECHNIQUES

A system and method for fixed size texture compression utilizing dynamic alpha channel compression utilizes block-based compression. The method includes determining a first endpoint of a pixel block including four pixels, each pixel represented by a plurality of channels; determining a second endpoint of the pixel block, which is not the first endpoint; encoding the first endpoint and the second endpoint using a first plurality of bits; encoding a first quantization level using a second plurality of bits; encoding a second quantization level using a third plurality of bits; encoding an alpha map of the four pixels using a fourth plurality of bits; encoding a location of the first endpoint and a location of the second endpoint using a fifth plurality of bits; and storing an addressing indicator bit based on a distance between a value of the first endpoint and a value of the second endpoint.