kaufman@Shasta.STANFORD.EDU (Marc Kaufman) (12/12/87)
I have a strange picture problem. I am trying to image one of the ATG files (the robot arm), converted to PICT format, into an off-screen pixmap. The file is on disk and uses a CQDProc bottleneck procedure to read it. Also, I am using a custom color lookup procedure. The off-screen pixmap is 1366 x 2048 (2,797,568 bytes). On a 2-meg MAC, with a pixmap 1/4 the size, everything works. When we upgraded the memory to 4 megs, so that the entire pixmap could be built at once, the machine hangs: no cursor and the programmer switch is inop. No other changes were made to the program, which is running under Finder. Any ideas? Does CQuickdraw have a problem when there are more than a million pixels in the destination image? [I plan to file a formal bug report with Apple, but Usenet gets to more places faster] Marc Kaufman (kaufman@Shasta.stanford.edu)