[GEM-dev] Redundancy in PDP/Gridflow/Gem - was Re: [PD] gridflow for pd OS X(OT)

[Mathieu Bouchard]

On Mon, 2 May 2005, james tittle wrote:
> On May 2, 2005, at 12:12 AM, Mathieu Bouchard wrote:
>> (There's actually an even bigger speed issue on Mac processors, but it's 
>> still a mystery to me.)
> ...me too :-\  But we'll see...I'm wondering if it's a "how floats are dealt 
> with differently on x86 vs ppc"-kinda thing, but haven't checked it out 
> much...

Huh? the problem happens even with integers. Floats are rarely used in 
GridFlow. Most of the meat is done using int32, sometimes dropping down to 
int16 and uint8 if I can. There is some support for float32, float64, but 
I haven't much of a use for them yet.

> ...uh, I've already started to work on a gridflow to gem imageStruct 
> thing, in a similar manner as pdp2gem...but nothing to get too excited 
> about yet...in part I think that the slowness of gridflow in osx atm may 
> be due to the way it's just drawing to the window instead of using the 
> faster path...using CGContextDrawImage() isn't normally used for video 
> redraws...

Have you looked into that?

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