and https://source.squeak.org/VMMaker/VMMaker.oscog-nice.2732.diff

Le dim. 26 avr. 2020 à 22:48, Nicolas Cellier <
nicolas.cellier.aka.nice at gmail.com> a écrit :

> Hi Eliot,
> already fixed by
> https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/3fa41faef52a157954d706aa5305e756f0f23228
>
> Le dim. 26 avr. 2020 à 22:44, Eliot Miranda <eliot.miranda at gmail.com> a
> écrit :
>
>> Hi Tim,
>>
>> On Sun, Mar 22, 2020 at 2:50 PM Eliot Miranda <eliot.miranda at gmail.com>
>> wrote:
>>
>>> Hi Bruce,
>>>
>>> On Mar 22, 2020, at 8:31 AM, Bruce O'Neel <bruce.oneel at pckswarms.ch>
>>> wrote:
>>>
>>> Hi,
>>>
>>> Good news, playing with
>>>
>>> --enable-fast-bitblt
>>>
>>>
>>> and
>>>
>>> --disable-fast-bitblt
>>>
>>>
>>> does work in that it builds a working VM.
>>>
>>> Good news/bad news, it does not change the font problem.  So that's not
>>> the problem.
>>>
>>>
>>> Great news.  We now know it is an X11 problem and can stop worrying
>>> about the fast BitBLT code.  Thanks.
>>>
>>
>> Looks like the problem, or at least a version of the problem, is nothing
>> to do with X11.  If I open an About Squeak System Reporter in the simulator
>> (64-bits x64) I see the fixed pitch font corruption we saw on X11 on ARM.
>> So it looks tile the issue is actually in BitBlt itself.
>>
>> [image: SysRepFixedPitch.png]
>>
>>>
>>>
>>> cheers
>>>
>>> bruce
>>>
>>> *21 March 2020 01:07 tim Rowledge <tim at rowledge.org <tim at rowledge.org>>
>>> wrote:*
>>>
>>>
>>>
>>> > On 2020-03-20, at 6:16 AM, Bruce O'Neel wrote:
>>> >
>>> >
>>> > I specialize in ridiculous. Good news, I guess, is that I dug up a
>>> monitor, and, walked it downstairs with a keyboard and mouse and attached
>>> it. The effect with the BitstreamVeraSans and ComicSans fonts are the same.
>>> Maybe it likes serfed fonts?
>>>
>>> I'm completely baffled by this. I don't get this effect with any ARM vm
>>> that I have that actually runs, with any image I have.
>>>
>>> >
>>> > So that means that it is not some funky X11 over the wire problem with
>>> the Mac and Windows X11 servers problem. That's good.
>>>
>>> Guess so, though it just makes life weirder.
>>>
>>> >
>>> > I have no idea then why. Are these fonts part of the image? Is it some
>>> funky binary format that for some reason Coq is mis-reading?
>>>
>>> Yes, the font glyphs are in-image. We've been using these ones for
>>> goodness knows how many years.
>>>
>>> >
>>> > I built a stack VM and I get the same result with a Squeak 5.3 image.
>>>
>>> There*shouldn't* be any difference between the stack & cog vms.
>>>
>>> You could try building a VM with the fastbitblt turned off I suppose -
>>> a quick hack is to find the BITBLT_FLAGS= -DENABLE_FAST_BLT and related
>>> lines in the Makefile in you squeak.cog.spur/build directory. I haven't
>>> actually built an ARM vm without that in years so I don't know it it even
>>> still works.
>>>
>>>
>>> tim
>>> --
>>> tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
>>> It is easier to change the specification to fit the program than vice
>>> versa.
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>> --
>> _,,,^..^,,,_
>> best, Eliot
>>
>>
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