alphaSkia

alphaSkia is a special cross platform Skia wrapper used in alphaTab it aims to provide a HTML5 Canvas like API to alphaTab providing a consistent rendering experience across the alphaTab flavours like web, .net and Kotlin. Differences across operating systems might still apply.

Versioning

alphaSkia a slightly adapted Semantic Versioning scheme where the PATCH part indicates the Skia milestone version we have integrated.

Currently we are on Skia m120

Given a version number MAJOR.MINOR.SKIA:

1. MAJOR is incremented when we make incompatible API changes.
2. MINOR is incremented when we add functionality in a backward compatible manner
3. SKIA is aligned with the Skia milestone we have integrated. See here and here

The prerelease labels and tags we use:

• Pre-Release versions for builds which are in-development
  • SemVer: -alpha.<build counter> (NuGet and NPM)
  • NPM Tag: alpha
  • Maven: -SNAPSHOT
• Local Builds (not published anywhere)
  • SemVer: -local
  • Maven: -LOCAL

Supported platforms

Target	.net	Java	Node.js
win-x64	✅	✅	✅
win-x86	✅	✅	✅
win-arm64	✅	✅	✅
linux-x64	✅	✅	✅
linux-x86	✅	✅	✅
linux-arm	✅	✅	✅
linux-arm64	✅	✅	✅
macos-x64	✅	✅	✅
macos-arm64	✅	✅	✅
android-x64	✅	✅
android-x86	✅	✅
android-arm	✅	✅
android-arm64	✅	✅
ios-arm64	✅
iossimulator-x64	✅
iossimulator-arm64	✅

We don't have a full automatic test matrix for all packages and platforms. If you encounter any platform problems please report them in this repository.

Credits

A big Thank you to the following projects giving me good insights on how to build Skia in a cross platform fashion. These projects influenced heavily how the pipelines of alphaSkia are organized.

• SkiaSharp
• Skija