A system, method and computer program product are provided for
programmable processing of fragment data in a computer hardware graphics
pipeline. Initially, fragment data is received in a hardware graphics
pipeline. It is then determined whether the hardware graphics pipeline is
operating in a programmable mode. If it is determined that the hardware
graphics pipeline is operating in the programmable mode, programmable
operations are performed on the fragment data in order to generate
output. The programmable operations are performed in a manner/sequence
specified in a graphics application program interface. If it is
determined that the hardware graphics pipeline is not operating in the
programmable mode, standard graphics application program interface (API)
operations are performed on the fragment data in order to generate
output.