is it related to Freetype or Athens?

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is it related to Freetype or Athens?

HilaireFernandes
Hi there,

A Dr. Geo user on Ubuntu 64bits 16.04 got that buggy rendering of the
canvas, then on some situation the rendering completely stop on a red
screen, with a stack showing may be a zero divide error. I did not get
access to the PharoDebog yet.

Fonts on the screenshot is not right too. Could it be a mixed problem
between FreeType and Cairo? Any first though on the issue welcome.

Given the fact Dr. Geo is still based on Pharo3 and it works pretty fine
on my old Ubuntu 12.07 derived system, it may be time to port the newer
Pharo6.

Congrats for the Pharo6 release.

Hilaire

--
Dr. Geo
http://drgeo.eu


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Re: is it related to Freetype or Athens?

Stephane Ducasse-3
Hilaire

If I remember correcly, there is a bug in cairo so igor was sometimes
forced to change the font size multiplying a little
to force the plugin to react.

Stef

On Tue, Jun 6, 2017 at 7:33 PM, Hilaire <[hidden email]> wrote:

> Hi there,
>
> A Dr. Geo user on Ubuntu 64bits 16.04 got that buggy rendering of the
> canvas, then on some situation the rendering completely stop on a red
> screen, with a stack showing may be a zero divide error. I did not get
> access to the PharoDebog yet.
>
> Fonts on the screenshot is not right too. Could it be a mixed problem
> between FreeType and Cairo? Any first though on the issue welcome.
>
> Given the fact Dr. Geo is still based on Pharo3 and it works pretty fine
> on my old Ubuntu 12.07 derived system, it may be time to port the newer
> Pharo6.
>
> Congrats for the Pharo6 release.
>
> Hilaire
>
> --
> Dr. Geo
> http://drgeo.eu
>

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Re: is it related to Freetype or Athens?

Peter Uhnák
In reply to this post by HilaireFernandes
On Tue, Jun 06, 2017 at 07:33:04PM +0200, Hilaire wrote:
> Hi there,
>
> A Dr. Geo user on Ubuntu 64bits 16.04 got that buggy rendering of the
> canvas, then on some situation the rendering completely stop on a red
> screen, with a stack showing may be a zero divide error. I did not get
> access to the PharoDebog yet.
>
> Fonts on the screenshot is not right too. Could it be a mixed problem
> between FreeType and Cairo? Any first though on the issue welcome.

There were couple GC/memory related issues in the VM's plugin, that were fixed or worked around in the Pharo 6 VM that apparently were present for a long time... so maybe that's also part of what you've experienced...

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Re: is it related to Freetype or Athens?

HilaireFernandes
Another good reason to migrate Dr. Geo to Pharo 6 ;)

Le 07/06/2017 à 21:53, Peter Uhnak a écrit :
> There were couple GC/memory related issues in the VM's plugin, that were fixed or worked around in the Pharo 6 VM that apparently were present for a long time... so maybe that's also part of what you've experienced...
>

--
Dr. Geo
http://drgeo.eu