Blender Git Commits

Implemented external build functions for adding relations.

Note: these use STANDARD DepsRelation types for now. Probably types for
relations are redundant anyway and can be removed later.

Stub implementations for external depsgraph build functions.

Test implementation of modifier updateDepsgraph callback in the
shrinkwrap modifier.

Some function declarations which can be used outside the depsgraph code
to define relations.

Basic callback in ModifierTypeInfo for registering dependencies in the
new depsgraph.

For now this lives alongside the old callback until porting is complete
and the old callback can be removed.

The modifier cb uses a DepsNodeHandle symbolic type for representing the
current modifier node itself, so it doesn't get into conflict with the
actual DepsNode class. This will also incorporate a pointer to Depsgraph
and possibly other state info internally, so only a single handle
argument is needed.

Made a new public header DEG_depsgraph_build.

This will contain all necessary API for _building_ the depsgraph, such
as the main scene->depsgraph update functions and specialized functions
e.g. for modifier dependencies.

Moved graphviz debugging code into a new file depsgraph_debug.cpp to
keep the query API file clean.

Removed leftover next/prev pointers from disused ListBase.

Removed copy function for relations.

This was not used, and it doesn't make much sense because one would
have to manually modify a copy after creating it, avoiding all the
pitfalls. Relations should just be deleted and replaced by creating a
new relation instead.

Some fixes and cleanup to allocating and freeing DepsRelations.

(Un-)Registering of relations in node inlinks/outlinks now happens in
constructor/destructor. Eventually it may be preferable to manage
relations in a central mempool in the Depsgraph instead of using shared
ownership in both from and to node.

Graphviz debug: Enable edges between cluster nodes, but using invisible
dummy nodes and ltail/lhead attributes.

Cleanup: removed unused typeinfo callback pointers.

Replaced last 2 remaining callbacks in DepsNodeFactory by virtual
DespNode methods.

Renamed DepsNodeTypeInfo to DepsNodeFactory.

This implements a common pattern, so using the standard naming is
preferable. Also DepsNode has another internal type called TypeInfo now,
best avoid confusion here.

Removed unused old typeinfo code.

Replaced remaining ListBases in Depsgraph with appropriate C++ containers.

Removed the redundant ops ListBase from ComponentDepsNode, one container
for operations is enough.

Disabled unused ListBase code in IDDepsNode.

ListBase is dangerous for virtual C++ classes, because by storing the
plain void* the vtable info is lost!

Replaced inlinks/outlinks ListBase in DepsNode by unordered_set.

Constructor/Destructor for DepsRelation.