This patch implements the Texture node for the realtime compositor. The
evaluation of the texture is not GPU accelerated, but is cached as a
form of temporary implementation since the Texture node is deprecated
and will be removed in the future. Furthermore, texture node evaluation
is not supported for now.
This patch also introduces the concept of an ID static cache, which
uses the DrawDataList mechanism to invalidate the cache as needed,
consequently, a DrawDataList was added to the Tex ID structure.
An improvement that should be implemented outside of this patch is to
implement support for proxy textures in results to avoid redundant
copies in the execute method of the texture node. This should be
straightforward bit will be implemented in a separate patch.
Pull Request: https://projects.blender.org/blender/blender/pulls/107291
Embedded IDs did not benefit from any of the recent optimizations
(especially for undo case) when writing regular IDs (cleaning up of some
pure runtime data that would generate a lot of fake 'changed on undo'
status).
Now factor out of `write_file_handle` this part of the code generating
temp ID copy with cleaned-up data for writing, and expose it in BLO API
such that IDs owning embedded ones can also use it.
Use a consistent style for declaring the names of struct members
in their declarations. Note that this convention was already used in
many places but not everywhere.
Remove spaces around the text (matching commented arguments) with
the advantage that the the spell checking utility skips these terms.
Making it possible to extract & validate these comments automatically.
Also use struct names for `bAnimChannelType` & `bConstraintTypeInfo`
which were using brief descriptions.
