Re: re: TrueType font support and 3.6

Ned Konz <[email protected]> wrote:

> Try this to see how fast your machine renders the characters:
> 
> string := String withAll: ((Character value: 0) to: (Character value: 
> 255)).
> TTCFont recreateCache.
> time := (Time millisecondsToRun: [ TTCFont allInstancesDo: [ :f | f 
> widthOfString: string ]]) / TTCFont allInstances size.
> time := time / 256.0.
27.9 :-(

tim
--
Tim Rowledge, [email protected], http://sumeru.stanford.edu/tim
Fractured Idiom:- VENI, VIDI, VICE - I came, I saw, I partied.
From [email protected] Sat Jun 21 03:50:14 2003
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Subject: Re: [Squeakfoundation]re: TrueType font support and 3.6
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  Hello,

> Try this to see how fast your machine renders the characters:
> 
> string := String withAll: ((Character value: 0) to: (Character value: 
> 255)).
> TTCFont recreateCache.
> time := (Time millisecondsToRun: [ TTCFont allInstancesDo: [ :f | f 
> widthOfString: string ]]) / TTCFont allInstances size.
> time := time / 256.0.
> 
> On my 900 MHz Transmeta machine, I get about 1.45 milliseconds per 
> character. On my 1200 MHz Duron desktop, I get about 0.70 
> milliseconds per character.

  On my Centrino 900MHz, it is about 0.61.

  Needless to say, this test includes the "extra large size" fonts.
For the normal size characters the speed is about twice as fast.

  If you get the MessageTally, 70% of time goes to the
BalloonEngine>>copyLoopFaster.  This is why I think Arjen's new BB
combinationRule will help here a lot.

-- Yoshiki
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Subject: Re: [Squeakfoundation]re: TrueType font support and 3.6
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From: Stephane Ducasse <[email protected]>
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Just a note about performance.
	Alex went in roumania to teach Smalltalk and he tried to use squeak 
but could not
	with a normal image. It took then a 2.8 shrunk image.
	So performance is still important.

Stef

On Saturday, June 21, 2003, at 04:02 AM, Tim Rowledge wrote:

> Doug Way <[email protected]> wrote:
>
>> Andreas Raab wrote:
>>
>>> Completely agree.
>>>
>>> BTW, Tim, does *installing* or *using* the TT fonts slow your system 
>>> down?
> It's the using, which as you say isn't totally unexpected. Oddly enough
> it seems fine in menus _after_ the first time the menu is popped up
> (presumably the initial rendering) but in text panes it's _really_ 
> slow.
> As Craig says, it's ok on his machine (I've seen it) but my machine is
> about one third the performance overall and when on the margin a factor
> of three can seem enormous. Typing in a morph is already excruciating
> even with boring strikefonts.
>
> Seeing things like this on a slow machine can be very useful and
> informative. Stuff that appears just fine on a multi-GHz box can
> actually be awful code simply 'getting away with murder' and then you
> see the real effect on a slower machine... It's the old scaling problem
> and benchmarks and profiling story.
>
> So an obvious question has to be what is the more expensive rendering
> and does it really have to be used - or could a simpler one be a
> preference at the expense of a little quality? Or can the expensive one
> be sped up with more plugin code?
>
>>
>> Right.  Assuming it's using (not just installing) the TT fonts that
>> slows things down on slower systems, we could incorporate the TT fonts
>> changes, but not actually change any of the default fonts to be TT 
>> fonts
>> for now.  (Maybe change a default font to be a TT font sometime in 3.7
>> if it's working really well.)
> I'd certainly agree with that. The fonts look too good to not be
> available for most people. I think to be actually useful we need to put
> together some better thought out textstyles than typically get 
> generated
> by 'load a TTF as textstyle' though. And a theme that incorporates them
> in one go would be helpful, as would another than doesn't incorporate
> them. Make it truly easy to use and people will use it.
>
> tim
> --
> Tim Rowledge, [email protected], http://sumeru.stanford.edu/tim
> Useful random insult:- A mental midget with the IQ of a fencepost.  -- 
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