PROGRAMMIERBARER PROZESSOR

A digital signal processor 1 is provided for performing digital image processing operations such as forward texture mapping. A first logic unit 21 receives input sample coordinates xr and xl, and determines a first color weight value "w" and a second color weight value "wN". A second logic unit 23 weights an input sample color with the color weight value wN, with the resultant weighted sample color being added to accumulated weighted sample colors from one or more previous iterations, thereby producing a new accumulated weighted sample color, ie the rgbaPartOut signal 13. A third logic unit 25 is configured to weight the input sample color with the first color weight value w, with the resultant weighted sample color being added to the accumulated weighted sample colors rgbaPartIn to produce the output color signal rgbaOut 11. The logic unit 21 produces the output sample coordinate xOut that relates to the integer coordinate where the color value of output sample rgbaOut 11 is meant for, and also generates a genPix signal that indicates when the output sample is valid. The operation described above continues for all iterations of input sample colors that contribute to a single output sample.