Build Assimp from source

thirdparty/assimp/scripts/AppVeyor/cacheglobs.txt

@@ -0,0 +1,4 @@
+code/*.{%{cpp}}
+contrib/**/*.{%{cpp}}
+include/**/*.{%{cpp}}
+test/**/*.{%{cpp}}

thirdparty/assimp/scripts/AppVeyor/mtime_cache

@@ -0,0 +1,177 @@
+#!/usr/bin/env ruby
+
+#
+# mtime_cache
+# Copyright (c) 2016 Borislav Stanimirov
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+#
+
+require 'digest/md5'
+require 'json'
+require 'fileutils'
+
+VERSION = "1.0.2"
+
+VERSION_TEXT = "mtime_cache v#{VERSION}"
+
+USAGE = <<ENDUSAGE
+
+Usage:
+    mtime_cache [<globs>] [-g globfile] [-d] [-q|V] [-c cache]
+ENDUSAGE
+
+HELP = <<ENDHELP
+
+    Traverse through globbed files, making a json cache based on their mtime.
+    If a cache exists, changes the mtime of existing unchanged (based on MD5
+    hash) files to the one in the cache.
+
+    Options:
+
+    globs           Ruby-compatible glob strings (ex some/path/**/*.java)
+                    A extension pattern is allowd in the form %{pattern}
+                    (ex some/path/*.{%{pattern1},%{pattern2}})
+                    The globs support the following patterns:
+                     %{cpp} - common C++ extensions
+
+    -g, --globfile  A file with list of globs to perform (one per line)
+
+    -?, -h, --help  Show this help message.
+    -v, --version   Show the version number (#{VERSION})
+    -q, --quiet     Don't log anything to stdout
+    -V, --verbose   Show extra logging
+    -d, --dryrun    Don't change any files on the filesystem
+    -c, --cache     Specify the cache file for input and output.
+                    [Default is .mtime_cache.json]
+
+ENDHELP
+
+param_arg = nil
+ARGS = { :cache => '.mtime_cache.json', :globs => [] }
+
+ARGV.each do |arg|
+  case arg
+    when '-g', '--globfile'   then param_arg = :globfile
+    when '-h', '-?', '--help' then ARGS[:help] = true
+    when '-v', '--version'    then ARGS[:ver] = true
+    when '-q', '--quiet'      then ARGS[:quiet] = true
+    when '-V', '--verbose'    then ARGS[:verbose] = true
+    when '-d', '--dryrun'     then ARGS[:dry] = true
+    when '-c', '--cache'      then param_arg = :cache
+    else
+      if param_arg
+        ARGS[param_arg] = arg
+        param_arg = nil
+      else
+        ARGS[:globs] << arg
+      end
+  end
+end
+
+def log(text, level = 0)
+  return if ARGS[:quiet]
+  return if level > 0 && !ARGS[:verbose]
+  puts text
+end
+
+if ARGS[:ver] || ARGS[:help]
+  log VERSION_TEXT
+  exit if ARGS[:ver]
+  log USAGE
+  log HELP
+  exit
+end
+
+if ARGS[:globs].empty? && !ARGS[:globfile]
+  log 'Error: Missing globs'
+  log USAGE
+  exit 1
+end
+
+EXTENSION_PATTERNS = {
+  :cpp => "c,cc,cpp,cxx,h,hpp,hxx,inl,ipp,inc,ixx"
+}
+
+cache_file = ARGS[:cache]
+
+cache = {}
+
+if File.file?(cache_file)
+  log "Found #{cache_file}"
+  cache = JSON.parse(File.read(cache_file))
+  log "Read #{cache.length} entries"
+else
+  log "#{cache_file} not found. A new one will be created"
+end
+
+globs = ARGS[:globs].map { |g| g % EXTENSION_PATTERNS }
+
+globfile = ARGS[:globfile]
+if globfile
+  File.open(globfile, 'r').each_line do |line|
+    line.strip!
+    next if line.empty?
+    globs << line % EXTENSION_PATTERNS
+  end
+end
+
+if globs.empty?
+  log 'Error: No globs in globfile'
+  log USAGE
+  exit 1
+end
+
+files = {}
+num_changed = 0
+
+globs.each do |glob|
+  Dir[glob].each do |file|
+    next if !File.file?(file)
+
+    mtime = File.mtime(file).to_i
+    hash = Digest::MD5.hexdigest(File.read(file))
+
+    cached = cache[file]
+
+    if cached && cached['hash'] == hash && cached['mtime'] < mtime
+      mtime = cached['mtime']
+
+      log "mtime_cache: changing mtime of #{file} to #{mtime}", 1
+
+      File.utime(File.atime(file), Time.at(mtime), file) if !ARGS[:dry]
+      num_changed += 1
+    else
+      log "mtime_cache: NOT changing mtime of #{file}", 1
+    end
+
+    files[file] = { 'mtime' => mtime, 'hash' => hash }
+  end
+end
+
+log "Changed mtime of #{num_changed} of #{files.length} files"
+log "Writing #{cache_file}"
+
+if !ARGS[:dry]
+  dirname = File.dirname(cache_file)
+  unless File.directory?(dirname)
+    FileUtils.mkdir_p(dirname)
+  end
+  File.open(cache_file, 'w').write(JSON.pretty_generate(files))
+end

thirdparty/assimp/scripts/BlenderImporter/BlenderScene.cpp.template

@@ -0,0 +1,56 @@
+/*
+Open Asset Import Library (ASSIMP)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2016, ASSIMP Development Team
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms, 
+with or without modification, are permitted provided that the 
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the ASSIMP team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  BlenderScene.cpp
+ *  @brief MACHINE GENERATED BY ./scripts/BlenderImporter/genblenddna.py
+ */
+#include "AssimpPCH.h"
+#ifndef AI_BUILD_NO_BLEND_IMPORTER
+
+#include "BlenderDNA.h"
+#include "BlenderScene.h"
+#include "BlenderSceneGen.h"
+
+using namespace Assimp;
+using namespace Assimp::Blender;
+
+<HERE>
+
+#endif

thirdparty/assimp/scripts/BlenderImporter/BlenderSceneGen.h.template

@@ -0,0 +1,55 @@
+/*
+Open Asset Import Library (ASSIMP)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2016, ASSIMP Development Team
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms, 
+with or without modification, are permitted provided that the 
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the ASSIMP team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file  BlenderSceneGen.h
+ *  @brief MACHINE GENERATED BY ./scripts/BlenderImporter/genblenddna.py
+ */
+#ifndef INCLUDED_AI_BLEND_SCENEGEN_H
+#define INCLUDED_AI_BLEND_SCENEGEN_H
+
+namespace Assimp	{
+	namespace Blender {
+
+<HERE>
+
+	}
+}
+
+#endif

thirdparty/assimp/scripts/BlenderImporter/genblenddna.py

@@ -0,0 +1,299 @@
+#!/usr/bin/env python3
+# -*- Coding: UTF-8 -*-
+
+# ---------------------------------------------------------------------------
+# Open Asset Import Library (ASSIMP)
+# ---------------------------------------------------------------------------
+#
+# Copyright (c) 2006-2016, ASSIMP Development Team
+#
+# All rights reserved.
+#
+# Redistribution and use of this software in source and binary forms, 
+# with or without modification, are permitted provided that the following 
+# conditions are met:
+# 
+# * Redistributions of source code must retain the above
+#   copyright notice, this list of conditions and the
+#   following disclaimer.
+# 
+# * Redistributions in binary form must reproduce the above
+#   copyright notice, this list of conditions and the
+#   following disclaimer in the documentation and/or other
+#   materials provided with the distribution.
+# 
+# * Neither the name of the ASSIMP team, nor the names of its
+#   contributors may be used to endorse or promote products
+#   derived from this software without specific prior
+#   written permission of the ASSIMP Development Team.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# ---------------------------------------------------------------------------
+
+"""Generate BlenderSceneGen.h and BlenderScene.cpp from the
+data structures in BlenderScene.h to map from *any* DNA to
+*our* DNA"""
+
+import sys
+import os
+import re
+
+inputfile      = os.path.join("..","..","code","BlenderScene.h")
+outputfile_gen = os.path.join("..","..","code","BlenderSceneGen.h")
+outputfile_src = os.path.join("..","..","code","BlenderScene.cpp")
+
+template_gen = "BlenderSceneGen.h.template"
+template_src = "BlenderScene.cpp.template"
+
+# workaround for stackoverflowing when reading the linked list of scene objects
+# with the usual approach. See embedded notes for details.
+Structure_Convert_Base_fullcode = """
+template <> void Structure::Convert<Base>( Base& dest, const FileDatabase& db ) const { 
+	// note: as per https://github.com/assimp/assimp/issues/128,
+	// reading the Object linked list recursively is prone to stack overflow.
+	// This structure converter is therefore an hand-written exception that
+	// does it iteratively.
+
+	const int initial_pos = db.reader->GetCurrentPos();
+	std::pair<Base*, int> todo = std::make_pair(&dest, initial_pos);
+	Base* saved_prev = NULL;
+	while(true) {
+		Base& cur_dest = *todo.first;
+		db.reader->SetCurrentPos(todo.second);
+
+		// we know that this is a double-linked, circular list which we never
+		// traverse backwards, so don't bother resolving the back links.
+		cur_dest.prev = NULL;
+
+		ReadFieldPtr<ErrorPolicy_Warn>(cur_dest.object,"*object",db);
+
+		// just record the offset of the blob data and allocate storage.
+		// Does _not_ invoke Convert() recursively.
+		const int old = db.reader->GetCurrentPos();
+
+		// the return value of ReadFieldPtr indicates whether the object 
+		// was already cached. In this case, we don't need to resolve
+		// it again.
+		if(!ReadFieldPtr<ErrorPolicy_Warn>(cur_dest.next,"*next",db, true) && cur_dest.next) {
+			todo = std::make_pair(&*cur_dest.next, db.reader->GetCurrentPos());
+			continue;
+		}
+		break;
+	}
+	
+	db.reader->SetCurrentPos(initial_pos + size);
+}
+
+"""
+
+
+Structure_Convert_decl =  """
+template <> void Structure :: Convert<{a}> (
+    {a}& dest,
+    const FileDatabase& db
+    ) const
+"""
+
+
+Structure_Convert_ptrdecl = """
+    ReadFieldPtr<{policy}>({destcast}dest.{name_canonical},"{name_dna}",db);"""
+
+Structure_Convert_rawptrdecl = """
+    {{
+        boost::shared_ptr<{type}> {name_canonical};
+        ReadFieldPtr<{policy}>({destcast}{name_canonical},"{name_dna}",db);
+        dest.{name_canonical} = {name_canonical}.get();
+    }}"""
+
+Structure_Convert_arraydecl = """
+    ReadFieldArray<{policy}>({destcast}dest.{name_canonical},"{name_dna}",db);"""
+
+Structure_Convert_arraydecl2d = """
+    ReadFieldArray2<{policy}>({destcast}dest.{name_canonical},"{name_dna}",db);"""
+
+Structure_Convert_normal =  """
+    ReadField<{policy}>({destcast}dest.{name_canonical},"{name_dna}",db);"""
+
+
+DNA_RegisterConverters_decl = """
+void DNA::RegisterConverters() """
+
+DNA_RegisterConverters_add = """
+    converters["{a}"] = DNA::FactoryPair( &Structure::Allocate<{a}>, &Structure::Convert<{a}> );"""
+
+
+map_policy = {
+     ""     : "ErrorPolicy_Igno"
+    ,"IGNO" : "ErrorPolicy_Igno"
+    ,"WARN" : "ErrorPolicy_Warn"
+    ,"FAIL" : "ErrorPolicy_Fail"
+}
+
+#
+def main():
+
+    # -----------------------------------------------------------------------
+    # Parse structure definitions from BlenderScene.h
+    input = open(inputfile,"rt").read()
+
+    #flags = re.ASCII|re.DOTALL|re.MULTILINE
+    flags = re.DOTALL|re.MULTILINE
+    #stripcoms = re.compile(r"/\*(.*?)*\/",flags)
+    getstruct = re.compile(r"struct\s+(\w+?)\s*(:\s*ElemBase)?\s*\{(.*?)^\}\s*;",flags)
+    getsmartx = re.compile(r"(std\s*::\s*)?(vector)\s*<\s*(boost\s*::\s*)?shared_(ptr)\s*<\s*(\w+)\s*>\s*>\s*",flags)
+    getsmartp = re.compile(r"(boost\s*::\s*)?shared_(ptr)\s*<\s*(\w+)\s*>\s*",flags)
+    getrawp   = re.compile(r"(\w+)\s*\*\s*",flags)
+    getsmarta = re.compile(r"(std\s*::\s*)?(vector)\s*<\s*(\w+)\s*>\s*",flags)
+    getpolicy = re.compile(r"\s*(WARN|FAIL|IGNO)",flags)
+    stripenum = re.compile(r"enum\s+(\w+)\s*{.*?\}\s*;",flags)
+
+    assert getsmartx and getsmartp and getsmarta and getrawp and getpolicy and stripenum
+    
+    enums = set()
+    #re.sub(stripcoms," ",input)
+    #print(input)
+
+    hits = {}
+    while 1:
+        match = re.search(getstruct,input)
+        if match is None:
+            break
+
+        tmp = match.groups()[2]
+        while 1:
+            match2 = re.search(stripenum,tmp)
+            if match2 is None:
+                break
+            tmp = tmp[match2.end():]
+            enums.add(match2.groups()[0])
+
+        hits[match.groups()[0]] = list(
+            filter(lambda x:x[:2] != "//" and len(x),
+                map(str.strip,
+                    re.sub(stripenum," ",match.groups()[2]).split(";")
+        )))
+
+        input = input[match.end():]
+
+	for e in enums:
+		print("Enum: "+e)
+    for k,v in hits.items():
+        out = []
+        for line in v:
+           
+            policy = "IGNO"
+            py = re.search(getpolicy,line) 
+            if not py is None:
+                policy = py.groups()[0]
+                line = re.sub(getpolicy,"",line)
+
+            ty = re.match(getsmartx,line) or re.match(getsmartp,line)  or\
+                re.match(getsmarta,line) or re.match(getrawp,line)
+
+            if ty is None:
+                ty = line.split(None,1)[0]
+            else:
+                if len(ty.groups()) == 1:
+                    ty = ty.groups()[-1] + "$" 
+                elif ty.groups()[1] == "ptr":
+                    ty = ty.groups()[2] + "*"
+                elif ty.groups()[1] == "vector":
+                    ty = ty.groups()[-1] + ("*" if len(ty.groups()) == 3 else "**")
+                else:
+                    assert False
+
+            #print(line)
+            sp = line.split(',')
+            out.append((ty,sp[0].split(None)[-1].strip(),policy))
+            for m in sp[1:]:
+                out.append((ty,m.strip(),policy))
+                
+        v[:] = out
+        print("Structure {0}".format(k))
+        for elem in out:
+			print("\t"+"\t".join(elem))
+        print("")
+
+   
+    output = open(outputfile_gen,"wt")
+    templt = open(template_gen,"rt").read()
+    s = ""
+
+    # -----------------------------------------------------------------------
+    # Structure::Convert<T> declarations for all supported structures
+    for k,v in hits.items():
+        s += Structure_Convert_decl.format(a=k)+";\n";
+    output.write(templt.replace("<HERE>",s))
+
+    output = open(outputfile_src,"wt")
+    templt = open(template_src,"rt").read()
+    s = ""
+
+    # -----------------------------------------------------------------------
+    # Structure::Convert<T> definitions for all supported structures
+    for k,v in hits.items():
+    	s += "//" + "-"*80
+    	if k == 'Base':
+    		s += Structure_Convert_Base_fullcode 
+    		continue
+        s += Structure_Convert_decl.format(a=k)+ "{ \n";
+
+        for type, name, policy in v:
+            splits = name.split("[",1)
+            name_canonical = splits[0]
+            #array_part = "" if len(splits)==1 else "["+splits[1]
+            is_raw_ptr = not not type.count("$")
+            ptr_decl = "*"*(type.count("*") + (1 if is_raw_ptr else 0))
+            
+            name_dna = ptr_decl+name_canonical #+array_part
+
+            #required  = "false"
+            policy = map_policy[policy]
+            destcast = "(int&)" if type in enums else ""
+
+            # POINTER
+            if is_raw_ptr:
+                type = type.replace('$','')
+                s += Structure_Convert_rawptrdecl.format(**locals())
+            elif ptr_decl:
+                s += Structure_Convert_ptrdecl.format(**locals())
+            # ARRAY MEMBER
+            elif name.count('[')==1:
+                s += Structure_Convert_arraydecl.format(**locals())
+            elif name.count('[')==2:
+                s += Structure_Convert_arraydecl2d.format(**locals())
+            # NORMAL MEMBER
+            else:
+                s += Structure_Convert_normal.format(**locals())
+
+        s += "\n\n\tdb.reader->IncPtr(size);\n}\n\n"
+
+
+    # -----------------------------------------------------------------------
+    # DNA::RegisterConverters - collect all available converter functions
+    # in a std::map<name,converter_proc>
+    #s += "#if 0\n"
+    s += "//" + "-"*80 + DNA_RegisterConverters_decl + "{\n"
+    for k,v in hits.items():
+        s += DNA_RegisterConverters_add.format(a=k)
+        
+    s += "\n}\n"
+    #s += "#endif\n"
+        
+    output.write(templt.replace("<HERE>",s))
+
+    # we got here, so no error
+    return 0
+
+if __name__ == "__main__":
+    sys.exit(main())

thirdparty/assimp/scripts/OgreImporter/assimp.tpl

@@ -0,0 +1,10 @@
+
+material %_materialName
+{
+	set $specular %_specular
+	set $diffuse %_diffuse
+	set $ambient %_ambient
+	
+	set $colormap %color._texture
+	set $normalmap %normal._texture
+}

thirdparty/assimp/scripts/StepImporter/CppGenerator.py

@@ -0,0 +1,304 @@
+#!/usr/bin/env python3
+# -*- Coding: UTF-8 -*-
+
+# ---------------------------------------------------------------------------
+# Open Asset Import Library (ASSIMP)
+# ---------------------------------------------------------------------------
+#
+# Copyright (c) 2006-2018, ASSIMP Development Team
+#
+# All rights reserved.
+#
+# Redistribution and use of this software in source and binary forms, 
+# with or without modification, are permitted provided that the following 
+# conditions are met:
+# 
+# * Redistributions of source code must retain the above
+#   copyright notice, this list of conditions and the
+#   following disclaimer.
+# 
+# * Redistributions in binary form must reproduce the above
+#   copyright notice, this list of conditions and the
+#   following disclaimer in the documentation and/or other
+#   materials provided with the distribution.
+# 
+# * Neither the name of the ASSIMP team, nor the names of its
+#   contributors may be used to endorse or promote products
+#   derived from this software without specific prior
+#   written permission of the ASSIMP Development Team.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# ---------------------------------------------------------------------------
+
+"""Generate the C++ glue code needed to map EXPRESS to C++"""
+
+import sys, os, re
+
+if sys.version_info < (3, 0):
+    print("must use python 3.0 or greater")
+    sys.exit(-2)
+
+use_ifc_template = False
+	
+input_step_template_h   = 'StepReaderGen.h.template'
+input_step_template_cpp = 'StepReaderGen.cpp.template'
+input_ifc_template_h    = 'IFCReaderGen.h.template'
+input_ifc_template_cpp  = 'IFCReaderGen.cpp.template'
+
+cpp_keywords = "class"
+
+output_file_h = ""
+output_file_cpp = ""
+if (use_ifc_template ):
+    input_template_h = input_ifc_template_h
+    input_template_cpp = input_ifc_template_cpp
+    output_file_h = os.path.join('..','..','code','IFCReaderGen.h')
+    output_file_cpp = os.path.join('..','..','code','IFCReaderGen.cpp')
+else:
+    input_template_h = input_step_template_h
+    input_template_cpp = input_step_template_cpp
+    output_file_h = os.path.join('..','..','code/Importer/StepFile','StepReaderGen.h')
+    output_file_cpp = os.path.join('..','..','code/Importer/StepFile','StepReaderGen.cpp')
+
+template_entity_predef = '\tstruct {entity};\n'
+template_entity_predef_ni = '\ttypedef NotImplemented {entity}; // (not currently used by Assimp)\n'
+template_entity = r"""
+
+    // C++ wrapper for {entity}
+    struct {entity} : {parent} ObjectHelper<{entity},{argcnt}> {{ {entity}() : Object("{entity}") {{}}
+{fields}
+    }};"""
+
+template_entity_ni = ''
+
+template_type = r"""
+    // C++ wrapper type for {type}
+    typedef {real_type} {type};"""
+
+template_stub_decl = '\tDECL_CONV_STUB({type});\n'
+template_schema = '\t\tSchemaEntry("{normalized_name}",&STEP::ObjectHelper<{type},{argcnt}>::Construct )\n'
+template_schema_type = '\t\tSchemaEntry("{normalized_name}",nullptr )\n'
+template_converter = r"""
+// -----------------------------------------------------------------------------------------------------------
+template <> size_t GenericFill<{type}>(const DB& db, const LIST& params, {type}* in)
+{{
+{contents}
+}}"""
+
+template_converter_prologue_a = '\tsize_t base = GenericFill(db,params,static_cast<{parent}*>(in));\n'
+template_converter_prologue_b = '\tsize_t base = 0;\n'
+template_converter_check_argcnt = '\tif (params.GetSize() < {max_arg}) {{ throw STEP::TypeError("expected {max_arg} arguments to {name}"); }}'
+template_converter_code_per_field = r"""    do {{ // convert the '{fieldname}' argument
+        std::shared_ptr<const DataType> arg = params[base++];{handle_unset}{convert}
+    }} while(0);
+"""
+template_allow_optional = r"""
+        if (dynamic_cast<const UNSET*>(&*arg)) break;"""
+template_allow_derived = r"""
+        if (dynamic_cast<const ISDERIVED*>(&*arg)) {{ in->ObjectHelper<Assimp::IFC::{type},{argcnt}>::aux_is_derived[{argnum}]=true; break; }}"""        
+template_convert_single = r"""
+        try {{ GenericConvert( in->{name}, arg, db ); break; }} 
+        catch (const TypeError& t) {{ throw TypeError(t.what() + std::string(" - expected argument {argnum} to {classname} to be a `{full_type}`")); }}"""
+
+template_converter_omitted = '// this data structure is not used yet, so there is no code generated to fill its members\n'
+template_converter_epilogue = '\treturn base;'
+
+import ExpressReader
+
+def get_list_bounds(collection_spec):
+    start,end = [(int(n) if n!='?' else 0) for n in re.findall(r'(\d+|\?)',collection_spec)]
+    return start,end
+
+def get_cpp_type(field,schema):
+    isobjref = field.type in schema.entities
+    base = field.type
+    if isobjref:
+        base = 'Lazy< '+(base if base in schema.whitelist else 'NotImplemented')+' >'
+    if field.collection:
+        start,end = get_list_bounds(field.collection)
+        base = 'ListOf< {0}, {1}, {2} >'.format(base,start,end)
+    if not isobjref:
+        base += '::Out'
+    if field.optional:
+        base = 'Maybe< '+base+' >'
+        
+    return base
+
+def generate_fields(entity,schema):
+    fields = []
+    for e in entity.members:
+        fields.append('\t\t{type} {name};'.format(type=get_cpp_type(e,schema),name=e.name))
+    return '\n'.join(fields)
+
+def handle_unset_args(field,entity,schema,argnum):
+    n = ''
+    # if someone derives from this class, check for derived fields.
+    if any(entity.name==e.parent for e in schema.entities.values()):
+        n += template_allow_derived.format(type=entity.name,argcnt=len(entity.members),argnum=argnum)
+    
+    if not field.optional:
+        return n+''
+    return n+template_allow_optional.format()
+
+def get_single_conversion(field,schema,argnum=0,classname='?'):
+    name = field.name
+    return template_convert_single.format(name=name,argnum=argnum,classname=classname,full_type=field.fullspec)
+
+def count_args_up(entity,schema):
+    return len(entity.members) + (count_args_up(schema.entities[entity.parent],schema) if entity.parent else 0)
+
+def resolve_base_type(base,schema):
+    if base in ('INTEGER','REAL','STRING','ENUMERATION','BOOLEAN','NUMBER', 'SELECT','LOGICAL'):
+        return base
+    if base in schema.types:
+        return resolve_base_type(schema.types[base].equals,schema)
+    print(base)
+    return None
+    
+def gen_type_struct(typen,schema):
+    base = resolve_base_type(typen.equals,schema)
+    if not base:
+        return ''
+
+    if typen.aggregate:
+        start,end = get_list_bounds(typen.aggregate)
+        base = 'ListOf< {0}, {1}, {2} >'.format(base,start,end)
+    
+    return template_type.format(type=typen.name,real_type=base)
+
+def gen_converter(entity,schema):
+    max_arg = count_args_up(entity,schema)
+    arg_idx = arg_idx_ofs = max_arg - len(entity.members)
+    
+    code = template_converter_prologue_a.format(parent=entity.parent) if entity.parent else template_converter_prologue_b
+    if entity.name in schema.blacklist_partial:
+        return code+template_converter_omitted+template_converter_epilogue;
+        
+    if max_arg > 0:
+        code +=template_converter_check_argcnt.format(max_arg=max_arg,name=entity.name)
+
+    for field in entity.members:
+        code += template_converter_code_per_field.format(fieldname=field.name,
+            handle_unset=handle_unset_args(field,entity,schema,arg_idx-arg_idx_ofs),
+            convert=get_single_conversion(field,schema,arg_idx,entity.name))
+
+        arg_idx += 1
+    return code+template_converter_epilogue
+
+def get_base_classes(e,schema):
+    def addit(e,out):
+        if e.parent:
+            out.append(e.parent)
+            addit(schema.entities[e.parent],out)
+    res = []
+    addit(e,res)
+    return list(reversed(res))
+
+def get_derived(e,schema):
+    def get_deriv(e,out): # bit slow, but doesn't matter here
+        s = [ee for ee in schema.entities.values() if ee.parent == e.name]
+        for sel in s:
+            out.append(sel.name)
+            get_deriv(sel,out)
+    res = []
+    get_deriv(e,res)
+    return res
+
+def get_hierarchy(e,schema):
+    return get_derived(e, schema)+[e.name]+get_base_classes(e,schema)
+
+def sort_entity_list(schema):
+    deps = []
+    entities = schema.entities
+    for e in entities.values():
+        deps += get_base_classes(e,schema)+[e.name]
+
+    checked = [] 
+    for e in deps: 
+        if e not in checked: 
+            checked.append(e)
+    return [entities[e] for e in checked]
+    
+def work(filename):
+    schema = ExpressReader.read(filename,silent=True)
+    entities, stub_decls, schema_table, converters, typedefs, predefs = '','',[],'','',''
+
+    entitylist = 'ifc_entitylist.txt'
+    if not use_ifc_template:
+        entitylist = 'step_entitylist.txt'
+    whitelist = []
+    with open(entitylist, 'rt') as inp:
+        whitelist = [n.strip() for n in inp.read().split('\n') if n[:1]!='#' and n.strip()]
+
+    schema.whitelist = set()
+    schema.blacklist_partial = set()
+    for ename in whitelist:
+        try:
+            e = schema.entities[ename]
+        except KeyError:
+            # type, not entity
+            continue
+        for base in [e.name]+get_base_classes(e,schema):
+            schema.whitelist.add(base)
+        for base in get_derived(e,schema):
+            schema.blacklist_partial.add(base)
+
+    schema.blacklist_partial -= schema.whitelist
+    schema.whitelist |= schema.blacklist_partial
+
+    # Generate list with reserved keywords from c++
+    cpp_types = cpp_keywords.split(',')
+
+    # uncomment this to disable automatic code reduction based on whitelisting all used entities
+    # (blacklisted entities are those who are in the whitelist and may be instanced, but will
+    # only be accessed through a pointer to a base-class.
+    #schema.whitelist = set(schema.entities.keys())
+    #schema.blacklist_partial = set()
+    for ntype in schema.types.values():
+        typedefs += gen_type_struct(ntype,schema)
+        schema_table.append(template_schema_type.format(normalized_name=ntype.name.lower()))
+
+    sorted_entities = sort_entity_list(schema)
+    for entity in sorted_entities:
+        parent = entity.parent+',' if entity.parent else ''
+
+        if ( entity.name in cpp_types ):
+            entity.name = entity.name + "_t"
+            print( "renaming " + entity.name)
+        if entity.name in schema.whitelist:
+            converters += template_converter.format(type=entity.name,contents=gen_converter(entity,schema))
+            schema_table.append(template_schema.format(type=entity.name,normalized_name=entity.name.lower(),argcnt=len(entity.members)))
+            entities += template_entity.format(entity=entity.name,argcnt=len(entity.members),parent=parent,fields=generate_fields(entity,schema))
+            predefs += template_entity_predef.format(entity=entity.name)
+            stub_decls += template_stub_decl.format(type=entity.name)
+        else:
+            entities += template_entity_ni.format(entity=entity.name)
+            predefs += template_entity_predef_ni.format(entity=entity.name)
+            schema_table.append(template_schema.format(type="NotImplemented",normalized_name=entity.name.lower(),argcnt=0))
+
+    schema_table = ','.join(schema_table)
+
+    with open(input_template_h,'rt') as inp:
+        with open(output_file_h,'wt') as outp:
+            # can't use format() here since the C++ code templates contain single, unescaped curly brackets
+            outp.write(inp.read().replace('{predefs}',predefs).replace('{types}',typedefs).replace('{entities}',entities).replace('{converter-decl}',stub_decls))
+    
+    with open(input_template_cpp,'rt') as inp:
+        with open(output_file_cpp,'wt') as outp:
+            outp.write(inp.read().replace('{schema-static-table}',schema_table).replace('{converter-impl}',converters))
+
+    # Finished without error, so return 0
+    return 0
+
+if __name__ == "__main__":
+    sys.exit(work(sys.argv[1] if len(sys.argv)>1 else 'schema.exp'))

thirdparty/assimp/scripts/StepImporter/ExpressReader.py

@@ -0,0 +1,123 @@
+#!/usr/bin/env python3
+# -*- Coding: UTF-8 -*-
+
+# ---------------------------------------------------------------------------
+# Open Asset Import Library (ASSIMP)
+# ---------------------------------------------------------------------------
+#
+# Copyright (c) 2006-2010, ASSIMP Development Team
+#
+# All rights reserved.
+#
+# Redistribution and use of this software in source and binary forms, 
+# with or without modification, are permitted provided that the following 
+# conditions are met:
+# 
+# * Redistributions of source code must retain the above
+#   copyright notice, this list of conditions and the
+#   following disclaimer.
+# 
+# * Redistributions in binary form must reproduce the above
+#   copyright notice, this list of conditions and the
+#   following disclaimer in the documentation and/or other
+#   materials provided with the distribution.
+# 
+# * Neither the name of the ASSIMP team, nor the names of its
+#   contributors may be used to endorse or promote products
+#   derived from this software without specific prior
+#   written permission of the ASSIMP Development Team.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# ---------------------------------------------------------------------------
+
+"""Parse an EXPRESS file and extract basic information on all
+entities and data types contained"""
+
+import sys
+import re
+from collections import OrderedDict
+
+re_match_entity = re.compile(r"""
+ENTITY\s+(\w+)\s*                                    # 'ENTITY foo'
+.*?                                                  #  skip SUPERTYPE-of
+(?:SUBTYPE\s+OF\s+\((\w+)\))?;                       # 'SUBTYPE OF (bar);' or simply ';'
+(.*?)                                                # 'a : atype;' (0 or more lines like this)
+(?:(?:INVERSE|UNIQUE|WHERE)\s*$.*?)?                 #  skip the INVERSE, UNIQUE, WHERE clauses and everything behind 
+END_ENTITY;                                          
+""",re.VERBOSE|re.DOTALL|re.MULTILINE) 
+
+re_match_type = re.compile(r"""
+TYPE\s+(\w+?)\s*=\s*((?:LIST|SET)\s*\[\d+:[\d?]+\]\s*OF)?(?:\s*UNIQUE)?\s*(\w+)   # TYPE foo = LIST[1:2] of blub
+(?:(?<=ENUMERATION)\s*OF\s*\((.*?)\))?
+.*?                                                                 #  skip the WHERE clause
+END_TYPE;
+""",re.VERBOSE|re.DOTALL)
+
+re_match_field = re.compile(r"""
+\s+(\w+?)\s*:\s*(OPTIONAL)?\s*((?:LIST|SET)\s*\[\d+:[\d?]+\]\s*OF)?(?:\s*UNIQUE)?\s*(\w+?);
+""",re.VERBOSE|re.DOTALL)
+
+
+class Schema:
+    def __init__(self):
+        self.entities = OrderedDict()
+        self.types = OrderedDict()
+
+class Entity:
+    def __init__(self,name,parent,members):
+        self.name = name
+        self.parent = parent
+        self.members = members
+
+class Field:
+    def __init__(self,name,type,optional,collection):
+        self.name = name
+        self.type = type
+        self.optional = optional
+        self.collection = collection
+        self.fullspec = (self.collection+' ' if self.collection else '') + self.type 
+
+class Type:
+    def __init__(self,name,aggregate,equals,enums):
+        self.name = name
+        self.aggregate = aggregate
+        self.equals = equals
+        self.enums = enums
+        
+
+def read(filename, silent=False):
+    schema = Schema()
+    print( "Try to read EXPRESS schema file" + filename)
+    with open(filename,'rt') as inp: 
+        contents = inp.read()
+        types = re.findall(re_match_type,contents)
+        for name,aggregate,equals,enums in types:
+            schema.types[name] = Type(name,aggregate,equals,enums)
+            
+        entities = re.findall(re_match_entity,contents)
+        for name,parent,fields_raw in entities:
+            print('process entity {0}, parent is {1}'.format(name,parent)) if not silent else None
+            fields = re.findall(re_match_field,fields_raw)
+            members = [Field(name,type,opt,coll) for name, opt, coll, type in fields]
+            print('  got {0} fields'.format(len(members))) if not silent else None
+            
+            schema.entities[name] = Entity(name,parent,members)
+    return schema
+
+if __name__ == "__main__":
+    sys.exit(read(sys.argv[1] if len(sys.argv)>1 else 'schema.exp'))
+
+
+
+
+    

thirdparty/assimp/scripts/StepImporter/IFCReaderGen.cpp.template

@@ -0,0 +1,78 @@
+/*
+Open Asset Import Library (ASSIMP)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2018, ASSIMP Development Team
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms, 
+with or without modification, are permitted provided that the 
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the ASSIMP team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** MACHINE-GENERATED by scripts/ICFImporter/CppGenerator.py */
+
+#ifndef ASSIMP_BUILD_NO_IFC_IMPORTER
+
+#include "IFCReaderGen.h"
+
+namespace Assimp {
+using namespace IFC;
+
+namespace {
+
+	typedef EXPRESS::ConversionSchema::SchemaEntry SchemaEntry;
+	const SchemaEntry schema_raw[] =  {
+{schema-static-table}
+	};
+}
+
+// -----------------------------------------------------------------------------------------------------------
+void IFC::GetSchema(EXPRESS::ConversionSchema& out)
+{
+	out = EXPRESS::ConversionSchema(schema_raw);
+}
+
+namespace STEP {
+
+// -----------------------------------------------------------------------------------------------------------
+template <> size_t GenericFill<NotImplemented>(const STEP::DB& db, const LIST& params, NotImplemented* in)
+{
+	return 0;
+}
+
+
+{converter-impl}
+
+} // ! STEP
+} // ! Assimp
+
+#endif

thirdparty/assimp/scripts/StepImporter/IFCReaderGen.h.template

@@ -0,0 +1,91 @@
+/*
+Open Asset Import Library (ASSIMP)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2010, ASSIMP Development Team
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms, 
+with or without modification, are permitted provided that the 
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the ASSIMP team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** MACHINE-GENERATED by scripts/ICFImporter/CppGenerator.py */
+
+#ifndef INCLUDED_IFC_READER_GEN_H
+#define INCLUDED_IFC_READER_GEN_H
+
+#include "STEPFile.h"
+
+namespace Assimp {
+namespace IFC {
+	using namespace STEP;
+	using namespace STEP::EXPRESS;
+	
+	
+	struct NotImplemented : public ObjectHelper<NotImplemented,0> {
+		
+	};
+	
+
+	// ******************************************************************************
+	// IFC Custom data types
+	// ******************************************************************************
+
+{types}
+
+
+	// ******************************************************************************
+	// IFC Entities
+	// ******************************************************************************
+
+{predefs}
+{entities}
+
+	void GetSchema(EXPRESS::ConversionSchema& out);
+
+} //! IFC
+namespace STEP {
+
+	// ******************************************************************************
+	// Converter stubs
+	// ******************************************************************************
+	
+#define DECL_CONV_STUB(type) template <> size_t GenericFill<IFC::type>(const STEP::DB& db, const EXPRESS::LIST& params, IFC::type* in)
+	
+{converter-decl}
+
+#undef DECL_CONV_STUB
+
+} //! STEP
+} //! Assimp
+
+#endif // INCLUDED_IFC_READER_GEN_H

thirdparty/assimp/scripts/StepImporter/StepReaderGen.cpp.template

@@ -0,0 +1,78 @@
+/*
+Open Asset Import Library (ASSIMP)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, ASSIMP Development Team
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms, 
+with or without modification, are permitted provided that the 
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the ASSIMP team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** MACHINE-GENERATED by scripts/ICFImporter/CppGenerator.py */
+
+#ifndef ASSIMP_BUILD_NO_STEP_IMPORTER
+
+#include "code/Importer/StepFile/StepReaderGen.h"
+
+namespace Assimp {
+using namespace StepFile;
+
+namespace {
+
+	typedef EXPRESS::ConversionSchema::SchemaEntry SchemaEntry;
+	const SchemaEntry schema_raw[] =  {
+{schema-static-table}
+	};
+}
+
+// -----------------------------------------------------------------------------------------------------------
+void StepFile::GetSchema(EXPRESS::ConversionSchema& out)
+{
+	out = EXPRESS::ConversionSchema(schema_raw);
+}
+
+namespace STEP {
+
+// -----------------------------------------------------------------------------------------------------------
+template <> size_t GenericFill<NotImplemented>(const STEP::DB& db, const LIST& params, NotImplemented* in)
+{
+    return 0u;
+}
+
+
+{converter-impl}
+
+} // ! STEP
+} // ! Assimp
+
+#endif

thirdparty/assimp/scripts/StepImporter/StepReaderGen.h.template

@@ -0,0 +1,90 @@
+/*
+Open Asset Import Library (ASSIMP)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2019, ASSIMP Development Team
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms, 
+with or without modification, are permitted provided that the 
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the ASSIMP team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the ASSIMP Development Team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** MACHINE-GENERATED by scripts/ICFImporter/CppGenerator.py */
+
+#ifndef INCLUDED_STEPFILE_READER_GEN_H
+#define INCLUDED_STEPFILE_READER_GEN_H
+
+#include "code/STEPFile.h"
+
+namespace Assimp {
+namespace StepFile {
+
+using namespace STEP;
+using namespace STEP::EXPRESS;
+
+struct NotImplemented : public ObjectHelper<NotImplemented,0> {
+
+};
+
+// ******************************************************************************
+// StepFile Custom data types
+// ******************************************************************************
+
+{types}
+
+// ******************************************************************************
+// StepFile Entities
+// ******************************************************************************
+
+{predefs}
+{entities}
+
+	void GetSchema(EXPRESS::ConversionSchema& out);
+
+} //! StepFile
+
+namespace STEP {
+
+// ******************************************************************************
+// Converter stubs
+// ******************************************************************************
+	
+#define DECL_CONV_STUB(type) template <> size_t GenericFill<IFC::type>(const STEP::DB& db, const EXPRESS::LIST& params, IFC::type* in)
+	
+{converter-decl}
+
+#undef DECL_CONV_STUB
+
+} //! STEP
+} //! Assimp
+
+#endif // INCLUDED_STEPFILE_READER_GEN_H

thirdparty/assimp/scripts/StepImporter/extract_step_token.py

@@ -0,0 +1,64 @@
+#!/usr/bin/env python3
+# -*- Coding: UTF-8 -*-
+
+# ---------------------------------------------------------------------------
+# Open Asset Import Library (ASSIMP)
+# ---------------------------------------------------------------------------
+#
+# Copyright (c) 2006-2018, ASSIMP Development Team
+#
+# All rights reserved.
+#
+# Redistribution and use of this software in source and binary forms, 
+# with or without modification, are permitted provided that the following 
+# conditions are met:
+# 
+# * Redistributions of source code must retain the above
+#   copyright notice, this list of conditions and the
+#   following disclaimer.
+# 
+# * Redistributions in binary form must reproduce the above
+#   copyright notice, this list of conditions and the
+#   following disclaimer in the documentation and/or other
+#   materials provided with the distribution.
+# 
+# * Neither the name of the ASSIMP team, nor the names of its
+#   contributors may be used to endorse or promote products
+#   derived from this software without specific prior
+#   written permission of the ASSIMP Development Team.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# ---------------------------------------------------------------------------
+
+import sys
+
+Entity_token = "ENTITY"
+Type_token   = "TYPE"
+token = []
+file = open(sys.argv[1])
+output = open("step_entitylist.txt", "a")
+lines = file.readlines()
+for line in lines:
+    pos = line.find(Entity_token)
+    if pos != -1:
+        token = line.split(" ")
+        if len(token) > 1:
+            name = token[1]
+            print( "Writing entity " + name)
+            output.write(name)
+
+output.close()
+file.close()
+
+
+    

thirdparty/assimp/scripts/StepImporter/genentitylist.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+cd ../../code
+grep -E 'Ifc([A-Z][a-z]*)+' -o IFCLoader.cpp IFCGeometry.cpp IFCCurve.cpp IFCProfile.cpp IFCMaterial.cpp | uniq | sed s/.*:// > ../scripts/IFCImporter/output.txt

thirdparty/assimp/scripts/StepImporter/ifc_entitylist.txt

@@ -0,0 +1,111 @@
+# ==============================================================================
+# List of IFC structures needed by Assimp
+# ==============================================================================
+# use genentitylist.sh to update this list
+
+# This machine-generated list is not complete, it lacks many intermediate
+# classes in the inheritance hierarchy. Those are magically augmented by the
+# code generator. Also, the names of all used entities need to be present
+# in the source code for this to work.
+
+IfcAnnotation
+IfcArbitraryClosedProfileDef
+IfcArbitraryOpenProfileDef
+IfcArbitraryProfileDefWithVoids
+IfcAxis1Placement
+IfcAxis2Placement
+IfcAxis2Placement2D
+IfcAxis2Placement3D
+IfcBooleanClippingResult
+IfcBooleanResult
+IfcBoundedCurve
+IfcBoundingBox
+IfcBSplineCurve
+IfcBuilding
+IfcCartesianPoint
+IfcCartesianTransformationOperator
+IfcCartesianTransformationOperator3D
+IfcCartesianTransformationOperator3DnonUniform
+IfcCircle
+IfcCircleHollowProfileDef
+IfcCircleProfileDef
+IfcClosedShell
+IfcColourOrFactor
+IfcColourRgb
+IfcCompositeCurve
+IfcCompositeCurveSegment
+IfcConic
+IfcConnectedFaceSet
+IfcConversionBasedUnit
+IfcCurve
+IfcDirection
+IfcDoor
+IfcEllipse
+IfcExtrudedAreaSolid
+IfcFace
+IfcFaceBasedSurfaceModel
+IfcFaceBound
+IfcFaceOuterBound
+IfcFeatureElementSubtraction
+IfcGeometricRepresentationContext
+IfcGeometricRepresentationItem
+IfcHalfSpaceSolid
+IfcLine
+IfcLocalPlacement
+IfcManifoldSolidBrep
+IfcMappedItem
+IfcMeasureWithUnit
+IfcNamedUnit
+IfcObjectDefinition
+IfcObjectPlacement
+IfcOpeningElement
+IfcParameterizedProfileDef
+IfcPlane
+IfcPolygonalBoundedHalfSpace
+IfcPolyline
+IfcPolyLoop
+IfcPresentationStyleAssignment
+IfcPresentationStyleSelect
+IfcProduct
+IfcProductRepresentation
+IfcProfileDef
+IfcProject
+IfcRectangleProfileDef
+IfcRelAggregates
+IfcRelContainedInSpatialStructure
+IfcRelFillsElement
+IfcRelVoidsElement
+IfcRepresentation
+IfcRepresentationContext
+IfcRepresentationItem
+IfcRepresentationMap
+IfcRevolvedAreaSolid
+IfcShell
+IfcShellBasedSurfaceModel
+IfcSite
+IfcSIUnit
+IfcSomething
+IfcSpace
+IfcSpatialStructureElement
+IfcSpatialStructureElements
+IfcStyledItem
+IfcSurfaceStyle
+IfcSurfaceStyleElementSelect
+IfcSurfaceStyleRendering
+IfcSurfaceStyleShading
+IfcSurfaceStyleWithTextures
+IfcSweptAreaSolid
+IfcSweptDiskSolid
+IfcTopologicalRepresentationItem
+IfcTrimmedCurve
+IfcUnit
+IfcUnitAssignment
+IfcVector
+IfcIShapeProfileDef
+IfcPropertyListValue
+IfcRelDefinesByProperties
+IfcPropertySet
+IfcPropertySingleValue
+IfcProperty
+IfcComplexProperty
+IfcElementQuantity

thirdparty/assimp/scripts/adjust_header_paths.sh

@@ -0,0 +1,38 @@
+declare -a headers=("fast_atof.h"
+  "qnan.h"
+  "BaseImporter.h"
+  "Hash.h"
+  "MemoryIOWrapper.h"
+  "ParsingUtils.h"
+  "StreamReader.h"
+  "StreamWriter.h"
+  "StringComparison.h"
+  "StringUtils.h"
+  "SGSpatialSort.h"
+  "GenericProperty.h"
+  "SpatialSort.h"
+  "SkeletonMeshBuilder.h"
+  "SmoothingGroups.h"
+  "StandardShapes.h"
+  "RemoveComments.h"
+  "Subdivision.h"
+  "Vertex.h"
+  "LineSplitter.h"
+  "TinyFormatter.h"
+  "Profiler.h"
+  "LogAux.h"
+  "Bitmap.h"
+  "XMLTools.h"
+  "IOStreamBuffer.h"
+  "CreateAnimMesh.h"
+  "irrXMLWrapper.h"
+  "BlobIOSystem.h"
+  "MathFunctions.h"
+  "Macros.h"
+  "Exceptional.h"
+  "ByteSwapper.h")
+
+for i in "${headers[@]}"
+do
+  find . -type f -exec sed -i "s,<../code/$i>,<assimp/$i>,g" {} \;
+done

thirdparty/assimp/scripts/android_crosscompile/make_android.bat

@@ -0,0 +1,28 @@
+@echo off
+
+set ASSIMP_PATH=D:\projects\asset-importer-lib\assimp
+set CMAKE_PATH="C:\Program Files\CMake\bin\cmake.exe"
+set ANDROID_NDK_PATH=C:\Users\kimkulling\AppData\Local\Android\Sdk\ndk-bundle
+set ANDROID_CMAKE_PATH=contrib\android-cmake
+
+pushd %ASSIMP_PATH%
+
+rmdir /s /q build
+mkdir build
+cd build
+
+%CMAKE_PATH% .. ^
+  -G"MinGW Makefiles" ^
+  -DCMAKE_BUILD_TYPE=Release ^
+  -DCMAKE_TOOLCHAIN_FILE=%ANDROID_CMAKE_PATH%\android.toolchain.cmake ^
+  -DCMAKE_MAKE_PROGRAM=%ANDROID_NDK_PATH%\prebuilt\windows-x86_64\bin\make.exe ^
+  -DANDROID_NDK=%ANDROID_NDK_PATH% ^
+  -DANDROID_NATIVE_API_LEVEL=android-9 ^
+  -DASSIMP_ANDROID_JNIIOSYSTEM=ON ^
+  -DANDROID_ABI=arm64-v8a ^
+  -DASSIMP_BUILD_ZLIB=ON ^
+  -DASSIMP_BUILD_TESTS=OFF
+
+%CMAKE_PATH% --build .
+
+popd