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May 2005
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2005.05.26 19:43 "Re: Jpeg and YCbCr", by Chris Cox
> > It doesn't require a certain word size. > > > > Windows prefers everything as BGR, while other OSes prefer RGB. > > Anything that is a multiple of 8 bits is subject to byte order > > rules (I have yet to see a 96 bit word CPU, either - but extended > > precision floating point is also subject to byte order). > > but BGR and RGB isn't a byte-order issue, like the > Intel/Motorola thing. Actually, it is -- that's why Microsoft specified things that way. > well, let me restate that: i'd be very surprised to learn > that Microsoft went with BGR because the early Intel CPUs cared > about the order of the bytes in certain 24-bit data structures. The CPU doesn't care. But if you have byte order rules, you need to be consistent about applying them. Chris