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Re: [ft-devel] FT_MulDiv optimization
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From: |
Behdad Esfahbod |
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Subject: |
Re: [ft-devel] FT_MulDiv optimization |
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Date: |
Mon, 18 Aug 2014 11:09:08 -0400 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 |
On 14-08-16 07:25 PM, Alexei Podtelezhnikov wrote:
> On Sat, Aug 16, 2014 at 2:08 PM, Behdad Esfahbod <address@hidden> wrote:
>> Scratch this part. the existing limit is more than enough for all practical
>> purposes. It's pixel-size divided by upem in 16.16. So you need a font size
>> 10000 pixels before you surpass a 1048576 scale.
>
> Graham, Behdad.
>
> Let me ask differently. What is the reason for the imbalance?
> FT_MulDiv is symmetrical. Why is this not good for FT_MulFix.
FT_MulDiv is symmetrical because it takes two fixed numbers. FT_MulFix on the
other hand takes an integer and a fixed, and usage has it that the integer
comes as the first argument, and the fixed as the second.
> Is there
> empirical value for the imbalance (ratio)? Otherwise I'll just run
> statistics.Whatever the imbalance though the patch is in order.
--
behdad
http://behdad.org/