ANGLE.Static

Static library of ANGLE for Avalonia UI

A sample project here: https://github.com/peaceshi/Avalonia-NativeAOT-SingleFile

Which ANGLE this builds

This builds AvaloniaUI's ANGLE fork, not upstream google/angle, pinned in .github/workflows/build.yml:

Repo	https://github.com/AvaloniaUI/angle.git
Branch	avalonia-fork-master
Commit	1c89805903c1482166356d3b950d474973180e61

That commit is what Avalonia actually ships: Avalonia 12.1.2 resolves Avalonia.Angle.Windows.Natives 2.1.27548.20260419, and its av_libglesv2.dll reports 2.1.1 git hash: 1c89805903c1. Since this package exists to replace that DLL with a static link, it has to be the same source.

SkiaSharp does not determine this version. third_party/externals/angle2 is commented out in mono/skia, so SkiaSharp builds no ANGLE and pins no revision — matching a SkiaSharp version here would be meaningless.

Updating the pin

1. Check the av_libglesv2.dll shipped by the target Avalonia version (FileVersion carries the git hash) and find the matching commit on avalonia-fork-master.
2. Update ANGLE_Repo / ANGLE_Ref / ANGLE_Commit / ANGLE_CommitShort / ANGLE_Version.
3. Regenerate both version-specific artifacts against the new commit — they are not portable between revisions:
   • BUILD.gn — the fork's BUILD.gn plus two edits: an added libANGLE_static target, and complete_static_lib = true on libGLESv2_static. Record with git diff --patch > patch/avalonia-fork-master.patch.
   • patch/avalonia-fork-master-deps.patch — drops catapult, dawn, llvm/src, SwiftShader and VK-GL-CTS from DEPS so gclient sync stays small.

Note the fork defines no libANGLE_with_capture target, so unlike the old upstream setup there is no libANGLE_with_capture_static; adding one would reference an undefined target and fail gn gen.

libEGL_static is built and packaged alongside the GLES libraries because the fork's libGLESv2 exports no egl* entry points (they live in src/libEGL/libEGL_autogen.def), and Avalonia P/Invokes EGL.