Blender Git Loki

RNA: add length augmented to RNA_string_get_alloc

This was noted as a TODO as it wraps RNA_property_string_get_alloc
which takes a length return argument.

Cleanup: rename len to str_len for BLF functions

Make it obvious which variable this is the length of.

Cleanup: use BLI_str_utf8 prefix

Rename:

- BLI_str_utf8_invalid_byte (was BLI_utf8_invalid_byte)
- BLI_str_utf8_invalid_strip (was BLI_utf8_invalid_strip)

Fix T90847: snap to face of Add Primitive tool not working in edit mode

BVHTree was being created but not balanced.
Error introduced in {rBfcc844f8fbd0}.

make dot output more compact

I hate default int

Silly me, don't use alloca in this situation

Fix compile error on linux

Sculpt dyntopo: Temp fix for nasty GCC compiler bug on linux.

I'll file a bug report with GCC tomorrow.

avoid allocating index array in some cases

add return instruction and initial procedure validation

Sculpt dyntopo: Fix a dumb mistake I made in space_toolsystem_toolbar.py

Merge branch 'master' into soc-2020-io-performance

Cleanup: fix comment about compiler support.

Differential Revision: https://developer.blender.org/D12288

BLF: Remove space_userpref.py font_kerning_style

Remove `font_kerning_style` from `space_userpref.py` since this is no
longer valid.

See more details in D12276

Differential Revision: https://developer.blender.org/D12276

Reviewed by Campbell Barton

Utility classes for compact node definitions in C++.

Node definitions in C++ are currently spread out over a large number of
files all over the code base (nodes, DNA, RNA, UI). By contrast, python
nodes are very compact and can be added much more easily. To make node
definitions in C++ more convenient, this patch adds some utility
functions that allow defining type properties and callbacks of a node
in a single file.

The NodeDefinition template takes a struct (which should usually also be
a child class of the template) and finds static fields and functions of
the template argument to use for the node type. The "Mesh Primitive
Ellipse" node has been added as an example case, it may not end up being
used. Other existing node types are unaffected, this patch only provides
alternative ways to define a node.

Known limitations:
- Only ID properties can be added in the node source files without
additional DNA structs. This should be sufficient for the vast
majority of nodes, but can be augmented with conventional DNA structs
in node->storage if necessary.
- Runtime node definitions are identified only by their idname, they do
not have a fixed integer type. This has to be taken into account for
versioning.
- Sockets are currently added in the init function. The "template"
system is not supported and a better alternative should be added
eventually.

Merge branch 'master' into soc-2021-vse-strip-thumbnails

Merge branch 'soc-2021-vse-strip-thumbnails' of git.blender.org:blender into soc-2021-vse-strip-thumbnails

Cycles X: Fix crash with Subsurface Scatter GLSL shader after anisotropic commit.

7811c1147230 reintroduced paramaters that were removed in 9187156ab65c.

Cycles X: Fix some typos in code comments.

Thanks to Alaska for finding these.