Dear all, I am working on the pixma backend for Canon devices (variation: pixma_mp150.c), and have a question about registration of pixels in the y dimension.
Each backend I believe has variations on a <filename>_fill_buffer function called between <file>_scan and <>_finish_scan. The function reads sections of data from the scanner, and processes it line by line. Thus, pixels can be reorganized in the x-dimension. I am not sure if the amount of data read at once is controllable. I now have a problem where the pixels also need to be rearranged vertically. In particular, the first half of a line corresponds to the second half of a line much further along in the data. Is there any backend that has support for such processing, that I can look at for help? Or have I misunderstood what can be done with the current mp150_fill_buffer function in pixma_mp150.c? Regards, Gernot Hassenpflug -- ISP Asahi-Net: http://asahi-net.jp/en/ No.1 in Japan by customer satisfaction (Nikkei News, 7 July 2010)
