Update from QT5.15 to QT6.10.2

[guillaume-haerinck]

What does this PR do?

Upgrade the QT library version to QT6.10.2. This works in conjonction with the O3DE Qt6 branch.

• Feature Request - Upgrate O3DE tools to QT6 o3de#19081 - Linked feature request

What changes from vanilla QT ?

Nothing, we are using vanilla QT. In the process, we are nuking the custom changes listed below which were previously used.

Repo	O3DE Fork	Changes outline
QImageFormats	compare	- Advanced support for TIFF file format
QBase	compare	- New PropagateStyleToChildren flag - New ManualStyleSheet flag - Styling rendering optimization - Advanced layouting for tooltips - MacOS ssl changes - Tree view expand behavior changes
Qt5	compare	- Update QT git modules to point to fork when required

How to test ?

Prerequisites are the same as building o3de from source. It is also recommended to delete your previous build folder to prevent symbols mismatch.

You will likely want to build the editor with a target project, you can use the LY_PROJECTS flag in cmake configure to point to one of your o3de project.

(from your cloned o3de source repository)
mkdir build
cd build
cmake .. -DLY_PROJECTS=PATH_TO_YOUR_PROJECT

On Windows

• Download build artifacts from this PR. On windows it is currently this link (you need to be connected to github)
• Extract the zip file and copy qt-6.10.2-rev1-windows.tar.xz in C:\Users\YOUR_USER_NAME\.o3de\3rdParty\downloaded_packages
• On your O3DE repository, checkout the QT6 branch
• Configure the project with cmake and build Editor target
  • If you run into an issue with package not found, have a look at BuiltInPackages to update the QT6 package hash to match what is in the zip file qt-6.10.2-rev1-windows.tar.xz.SHA256SUMS

On Linux

You must have libicu70 (can be downloaded from https://pkgs.org/search/?q=libicu70).

• Download build artifacts from this PR. On ubuntu it is currently this link (you need to be connected to github)
• Extract the zip file and copy qt-6.10.2-rev1-linux.tar.xz in YOUR_USER_NAME/.o3de/3rdParty/downloaded_packages
• On your O3DE repository, checkout the QT6 branch
• Configure the project with cmake and build Editor target
  • If you run into an issue with package not found, have a look at BuiltInPackages to update the QT6 package hash to match what is in the zip file qt-6.10.1-rev2-linux.tar.xz.SHA256SUMS

mkdir build
cd build
cmake .. -DLY_PROJECTS=PATH_TO_YOUR_PROJECT
cmake --build . -j 8 --target Editor
./build/bin/profile/Editor --project-path=YOUR_PROJECT_PATH

** For Wayland **

If you want to make wayland work, these files will be of interest :

• YOUR_USER_NAME/.o3de/3rdParty/packages/qt-6.8.3-rev2-linux/FindQt.cmake and the Platform folder
• Code\Editor\Platform\Linux\Editor\Core\QtEditorApplication_linux.cpp

[yaakuro]

As described above, I was also getting libicui18n.so.70: cannot open shared object ....
To fix this issue on my end, I just ran:

wget https://launchpad.net/ubuntu/+source/icu/70.1-2/+build/23145450/+files/libicu70_70.1-2_amd64.deb
sudo dpkg -i libicu70_70.1-2_amd64.deb

[nick-l-o3de]

I tested this on windows, and with the given rev1 pack, I didn't encounter any issues in the following

• Editor
  • any editor sub tools (input bindings, animation editor, particle editor, etc)
• Assetbundler - (minor checkbox alignment thing)
• LuaIDE
• MaterialEditor
• MaterialCanvas
• AssetProcessor

[guillaume-haerinck]

Required as QT6 needs at least vs2022, not 2019

[amzn-changml]

Good to know. We'll be updating requirements for VS2022

[amzn-changml]

Promotion run here: https://github.com/o3de/3p-package-source/actions/runs/21995542491

O3DE PR here: o3de/o3de#19565

[amzn-changml]

Good to know. We'll be updating requirements for VS2022