[gmpi] Re: Topic 3: Cross platform
- From: Steve Harris <S.W.Harris@xxxxxxxxxxxxxxx>
- To: gmpi@xxxxxxxxxxxxx
- Date: Wed, 5 Mar 2003 18:12:54 +0000
On Wed, Mar 05, 2003 at 12:44:29 -0500, Angus F. Hewlett wrote:
> On Wed, 5 Mar 2003 RonKuper@xxxxxxxxxxxx wrote:
>
> > I'd like to see a design where the data format at the interface boundary was
> > float, but the plugin could process in whatever format it wanted internally.
>
> I don't think it's that big a deal to allow some degree of format
> negotiation and for plugs to support whatever they want. Particularly as
> 64-bit floats may become popular for processing even on 32-bit addressing
> platforms (SSE2...) - with the long process chains that are possible on
> today's fast systems and future ones, errors can eventually accumulate to
> quite a high level with 32-bit float and it would not surprise me at all
> to see pro's and purists wanting 64-bit within the next couple of years.
FWIW I have no problem with 64bit floating point, I can easily write code
that is portable to 64 and 32 bit IEEE floats (at the source level) its
just the fixedpoint and integer repesentations that are very different.
- Steve
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