Add Chromium-only Blender WebEngine parity work

blender-5.2.0/source/blender/makesdna/DNA_documentation.h

@@ -0,0 +1,67 @@
+/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup DNA
+ * \page makesdna Make Struct DNA (`makesdna`)
+ *
+ * \section aboutdna About the DNA module
+ *
+ * The DNA module holds all type definitions that are serialized in a
+ * blender file. There is an executable that scans all files, looking
+ * for struct-s to serialize (hence sdna: Struct \ref DNA). From this
+ * information, it builds a file with numbers that encode the format,
+ * the names of variables, and the place to look for them.
+ *
+ * \section dnaissues Known issues with DNA
+ *
+ * - Function pointers:
+ *
+ *   Because of historical reasons, some function pointers were
+ *   untyped. The parser/DNA generator has been modified to explicitly
+ *   handle these special cases. Most pointers have been given proper
+ *   proto's by now. DNA_space_types.h::Spacefile::returnfunc may still
+ *   be badly defined. The reason for this is that it is called with
+ *   different types of arguments. It takes a char* at this moment...
+ *
+ * - Ignoring structs:
+ *
+ *   Sometimes we need to define structs in DNA which aren't written
+ *   to disk, and can be excluded from blend file DNA string.
+ *   in this case, add two '#' chars directly before the struct. eg.
+ *
+ *   \code{.c}
+ *   #
+ *   #
+ *   struct MyStruct {
+ *       int value;
+ *   };
+ *   \endcode
+ *
+ *   Ignored structs can only be referred to from non-ignored structs
+ *   when referred to as a pointer (where they're usually allocated
+ *   and cleared in `readfile.cc`).
+ *
+ * - %Path to the header files
+ *
+ *   Also because of historical reasons, there is a path prefix to the
+ *   headers that need to be scanned. This is the BASE_HEADER
+ *   define. If you change the file-layout for DNA, you will probably
+ *   have to change this (Not very flexible, but it is hardly ever
+ *   changed. Sorry.).
+ *
+ * \section dnadependencies Dependencies
+ *
+ * DNA has no external dependencies (except for a few system
+ * includes).
+ *
+ * \section dnanote NOTE
+ *
+ * PLEASE READ INSTRUCTIONS ABOUT ADDING VARIABLES IN 'DNA' STRUCTS IN
+ *
+ * intern/dna_genfile.cc
+ * (ton)
+ */
+
+/* This file has intentionally no definitions or implementation. */