Hi, Daniel Egger <egger@xxxxxxx> writes: > Am 03 Sep 2001 17:45:13 -0700 schrieb Brian Weber: > > > So if I understand you correctly, since the gimps main purpose is > to > > perform bitwise manipulation that 64 bit won't give much of a benefit. > > No, it's doing bytewise operation on 8, 16, 24 or 32bit data and it has > to because many processors won't operate on several 8bit channels at > once because they lack cpu commands to do so. It would be a nice speedup > to work on 4x8bit at once for processors that support it and for 64bit > we could even do 2 RGBA pixels at once if the processors supports it. you certainly can process several 8 bit channels in one operation without special support from the processor and I would like to contribute such code to The GIMP, but I'm waiting until the new paint_funcs code is in place. Salut, Sven
