Upgrade to Cairo >= 1.18.0

[labordep]

How is the process to support a new Cairo version ?
The current supported version of Cairo (1.17.4) have 3 years, do you have some tools to compare performances between differents Cairo version ?

More informations here : https://www.cairographics.org/news/cairo-1.18.0/

[tinchodias]

We had conversations with Pablo to build the new version. After tests, they would be updated in a new Pharo VM and available for bindings. It's in the to do list!

[tinchodias]

With new libs, I would run some benchs in pharo-graphics/BlocBenchs repo.

In fact you gave me the idea to preview this lib upgrade as I did before: replace Pharo vm libraries(*) by downloaded ones.

• On Mac, I'd download the new lib with "brew"
• On Windows, we can download the zip from https://github.com/harfbuzz/harfbuzz/releases/tag/8.2.1

(*): replacing cairo requires algo png, zlib, pixman, and freetype.

[labordep]

Cool :) Thanks !

[tinchodias]

@labordep I observed a speed up when using system's Cairo 1.18.0 (in Mac).

For the record, I added instructions on how to do it: https://github.com/pharo-graphics/Alexandrie/wiki/Dependencies

[labordep]

Thanks @tinchodias, I will test on Windows, but I don't know how to get the librairy because there is not available directly as a dll for Windows.

Last time when I try to run a new version (for Cade) performances was less good than the previous version of Cairo :-(
I hope for Bloc this will be not the case !

[tinchodias]

This was working for Windows: download the zip from the release, they build and ship not only harfbuzz but also its dependencies, which are cairo, freetype, pixman, etc: https://github.com/harfbuzz/harfbuzz/releases/tag/8.2.1

[tinchodias]

I appended some words more about Windows at the end of https://github.com/pharo-graphics/Alexandrie/wiki/Dependencies

[tinchodias]

(@labordep )

[tinchodias]

We can keep this open until we can upgrade in vm with @tesonep

There is currently https://gitlab.freedesktop.org/cairo/cairo/-/releases/1.18.2