AW: AW: Why is LC text blurred on a retina display?

[Tiemo Hollmann TB]

Hi Mark,

I am sorry for my uncouth "broken". It was only for me "not usable"
Your improvements on the sort command really look very promising. Thank you
for caring about it!

The reason, why I can't use the AVFoundation is very specific to my
environment. All of our products are based on a set of 20000 sign language
videos, which were compressed and encoded 7 years ago with Sorenson squeeze.
Though the codec was a h.264, Sorenson put its own name "Sorenson Video 3"
into the header of the videos, which isn't accepted by AVFoundation and so
the videos can't be played by the AVFoundation player. Getting all native
videos out of the archive cutting and recompressing with a new codec has to
be done one day, but is actually a real big deal for us. And I can't update
the program anymore at the existing customer base, without exchanging all
videos (8GB), what isn't realistic as an update. I would have to release a
complete new version. And "if" I am heading this big task, it makes only
sense, if I am sure I can use the new videos also with a new LC video player
on Windows. So not being able to use AVFoundation isn't a technical issue,
"only" an organizational issue in our specific situation.
Thanks for asking
Tiemo


-----Ursprüngliche Nachricht-----
Von: use-livecode [mailto:use-livecode-bounces at lists.runrev.com] Im Auftrag
von Mark Waddingham
Gesendet: Freitag, 18. September 2015 16:29
An: How to use LiveCode <use-livecode at lists.runrev.com>
Betreff: Re: AW: Why is LC text blurred on a retina display?

Hi Tiemo,

On 2015-09-18 11:11, Tiemo Hollmann TB wrote:
> Thanks Kay, Neil and Mark,
> I can't use LC 7 or above, because the sort international is 
> completely broken (as I have reported), what makes LC 7 or above 
> completely unusable for German developers. (because sorting is just 
> such a standard
> function...)
> But I will give 6.7.6 a try. Hoping I don't get any pitfalls with QT 
> on modern systems, because I can't use AVFoundation.

I do think that 'completely broken' is perhaps not quite the correct phrase
to use in this instance (I appreciate your native language is not English!).

I believe 7.0's 'sort international' functions entirely correctly - it just
does it substantially slower than before!

I recently did some work on the sort command for LiveCode 8 to optimize it's
performance:

https://github.com/livecode/livecode/pull/2496

The improvements were dramatic. Indeed, the new approach is actually much
better than it was prior to 7.0 as it ensures it only computes certain
information it needs once, and operates on a much smaller intermediate
representation.

I asked Seb to take some timings of the stack you provided in different
versions. Here is what he found:

6.7.7-rc-2    xSortListe    56ms  - sort full list
6.7.7-rc-2    xSortListe    27ms  - sort list items with 'a'

7.1.0-rc-3    xSortListe    596ms - sort full list
7.1.0-rc-3    xSortListe    293ms - sort list items with 'a'

8.0.0-dp-5    xSortListe    44ms  - sort full list
8.0.0-dp-5    xSortListe    26ms  - sort list items with 'a'

So, I think we can hopefully say that sort has returned to its previous
levels of performance (and indeed, might even be faster than before although
the margin for error in the above tests is too small to say for
sure) :)

We'll look into back-porting this particular patch to the 7.x branch - the
reason I put it into 8.0 was mainly because I was being conservative. If my
changes were to break something, we'd have more time to sort it out on the
develop branch, rather than on the 7.x maintenance branch.

On an unrelated note...

Can you explain why you can't use AVFoundation? Sorry to have to be the
bearer of bad news here, but anybody who is currently dependent on QuickTime
in any fashion is going to run into significant and insoluble problems as
time moves forward. We have just about managed to preserve existing player /
multimedia functionality in the Mac engine with the move to Cocoa (with
considerably difficulty, I might add); but the reality is that we cannot
continue to support QuickTime indefinitely as Apple dropped support for it,
and stopped maintaining it several years ago. It could disappear from a new
version of OS X at any point - it is already barred from the Mac AppStore.

Warmest Regards,

Mark.

--
Mark Waddingham ~ mark at livecode.com ~ http://www.livecode.com/
LiveCode: Everyone can create apps


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