searching for tester of FLTK 1.4 image drawing with a big endian machine

[Manolo]

Hi devs,

FLTK 1.4 has recently been updated so Fl_Cairo_Graphics_Driver draws correctly

images whatever the endianness of the host machine. But the new code was

not fully tested for lack of a big endian computer.

Could anyone perform these operations on a LInux/Unix big endian computer :

git pull to the last commit of https://github.com/fltk/fltk

autoconf -f

./configure --enable-usecairo

make clean

make

./test/device &

and check that the 3 images at the bottom left of the resulting window

are identical to those seen on the attached image.

TIA.
Manolo

[Manolo]

Thanks Matthias.

What computer did you use?

Here my arm64 MacBook pro is little endian !

Manolo

Le lundi 10 octobre 2022 à 12:29:19 UTC+2, melcher....@googlemail.com a écrit :

Yes, they seem the same.

[melcher....@googlemail.com]

Damn it, you are right. The M1 runs in Little Endian including Parallels. My answer was of no use, so I deleted it. I am so used to big endian ARM, that I didn't even check.

[Greg Ercolano]

Thanks Matthias. What computer did you use?

Here my arm64 MacBook pro is little endian !

Manolo

Damn it, you are right. The M1 runs in Little Endian including Parallels. My answer was of no use, so I deleted it. I am so used to big endian ARM, that I didn't even check.

    Manolo: do you think an old PPC Mac would do the job?
    I think they were big endian like my SGI.

    I have an old tower PPC in storage that I could dust off if you
    think it'd be useful. It's probably got an ancient g++ compiler
    and old 10.5 or 10.6 version of MacOS.

    If you think that'd be of use, I can try to pull it out and compile
    the latest fltk with it.

[Manolo]

Greg: The problem is that we want to check the new Cairo graphics driver which also requires Pango,

and runs over X11.

I expect putting Cairo, Pango, and XQuartz on an old macOS 10.6, and building fltk with it,

is no simple task.

My idea was to find a linux box with a native big endian architecture.

Manolo

[Lauri Kasanen]

On Mon, 10 Oct 2022 21:03:55 -0700 (PDT)
Manolo wrote:

> Greg: The problem is that we want to check the new Cairo graphics driver
> which also requires Pango,
> and runs over X11.
> I expect putting Cairo, Pango, and XQuartz on an old macOS 10.6, and
> building fltk with it,
> is no simple task.
> My idea was to find a linux box with a native big endian architecture.

Those are pretty rare. Modern POWERs would be nearly the only ones, and
most folks run those in LE mode anyway. You could ask in the void linux
irc etc if someone with a BE setup is willing to test.

Qemu can sw-emulate many BE systems, slowly.

- Lauri

[Greg Ercolano]

On 10/10/22 21:03, Manolo wrote:

My idea was to find a linux box with a native big endian architecture.

    Maybe I can install Debian on my old PowerMac G5.
    Might take a few days..

[Manolo]

Please, don't spend too much time on this. The rarer big endian linux boxes,

the smaller the importance of performing this test.

 

[Greg Ercolano]

    Oh good, because I had no luck at all installing.

    Did a bit of research; this technique seemed to look promising:
    https://www.youtube.com/watch?v=g-Ugfqj1ank

    And while I got the Debian 11 sid image to boot the installer,
    it kept failing midway during the install process that I could not
    figure out. It might be this machine only has 512MB of ram, which
    is probably too small for the installer to work with.