support OpenHarmony

[Dylan-H]

Description

Add support for OpenHarmony native window

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

How Has This Been Tested?

Similar to the Android platform, a test demo was written to load the teapot model on OpenHarmony for testing.

Test Configuration:

• Firmware version: OpenHarmony 6.0
• Hardware:
• Toolchain:DevEco Studio 6.0.0 Release +Cmake
• SDK:6.0.0(20)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added tests that prove my fix is effective or that my feature works
• Any dependent changes have been merged and published in downstream modules

[robertosfield]

Congrats on the port.

This is the first time I've come across OpenHarmony, so I guess I've my head down in the Vulkan bunker a bit too long :-)

What hardware have you tested on?

How straight forward would it be to create a dual boot with OpenHarmony on a desktop to sit along a desktop Linux variants like Ubunut/Kubuntu?

[Dylan-H]

Sorry, perhaps I misspoke about OpenHarmony. I only tested it on a Huawei HarmonyOS phone. Currently, setting up the OpenHarmony environment is a bit complicated. However, the NDK interface for HarmonyOS is consistent with that of OpenHarmony.

[robertosfield]

I have merged your changes as a HarmonySupport branch:

https://github.com/vsg-dev/VulkanSceneGraph/tree/HarmonySupport

I have done a first pass and I have come away wondering whether using OHOS prefix is a bit too specific OpenHarmonyOS as you've been testing with HarmonyOS so that's clearly supported to. Would just using Harmony as a prefix be OK?

[robertosfield]

@Dylan-H I'm inclined to rename include/vsg/platform/ohos to include/vsg/platform/harmony and vsgOHOS to vsgHarmony and OHOS_Window to Harmony_Window.

Thoughts?

[robertosfield]

To test out a change in naming I have created a new branch based on this PR:

https://github.com/vsg-dev/VulkanSceneGraph/tree/HarmonyPlatform

The changes are: deb2ee8

@Dylan-H Could provide you test this branch out and provide feedback.

[Dylan-H]

I've added a new merge request to the HarmonyPlatform branch (Fix header file error #1648), fixing a minor issue. I've also submitted a merge request based on this branch in the vsgExamples repository: Add HarmonyOS example #382.