Blender Git Loki

unify node type freeing

Merge branch 'master' into temp-openxr-buildstuff

unify socket type freeing

CMake: Suppress strict warnings for extern on macOS

Silences a lot of noise from Mantaflow.

remove unnecessary function parameter

initial socket type definition (memory freeing ist still wrong)

Merge branch 'master' into greasepencil-object

Fix ushort compiler errors in Windows

ushort is not supported

Modifiers: Refactor Mask modifier

The functionality of the mask modifier remains unchanged.

This patch updates the mask modifier so that it uses C++.
The manual memory management has been replaced with proper containers.
The large `applyModifier` function has been splitup into multiple smaller functions.
A large speedup is achieved by using simple arrays instead of hash tables in multiple places.

In my performance test file the playback speed increased from 1.1 to 5.1 fps on my laptop.

Reviewers: campbellbarton, brecht

Differential Revision: https://developer.blender.org/D6779

Merge branch 'functions' into simulation-tree

Merge branch 'master' into functions

Merge branch 'master' into greasepencil-object

Cleanup: use named unsigned types in the Python API

mathutils: support for to_2x2 as well as non-square matrices

mathutils: support Vector.rotate for 2D vectors

BLI_math: add 2x2 matrix utilities

Cleanup: rename mul_m2v2 to mul_m2_v2

Matches mul_m3_v3

Fix missing error message on convex hull failure

Also remove unused errors.

Cleanup: remove use of 'register'

This isn't needed with modern compilers.

Cleanup: unused structs