Added Assimp sources to Overload

Dependencies/assimp/LICENSE

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+Open Asset Import Library (assimp)
+
+Copyright (c) 2006-2021, assimp 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 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.
+
+
+
+******************************************************************************
+
+AN EXCEPTION applies to all files in the ./test/models-nonbsd folder.
+These are 3d models for testing purposes, from various free sources
+on the internet. They are - unless otherwise stated - copyright of
+their respective creators, which may impose additional requirements
+on the use of their work. For any of these models, see
+<model-name>.source.txt for more legal information. Contact us if you
+are a copyright holder and believe that we credited you inproperly or
+if you don't want your files to appear in the repository.
+
+
+******************************************************************************
+
+Poly2Tri Copyright (c) 2009-2010, Poly2Tri Contributors
+http://code.google.com/p/poly2tri/
+
+All rights reserved.
+Redistribution and use 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 Poly2Tri nor the names of its contributors may be
+  used to endorse or promote products derived from this software without specific
+  prior written permission.
+
+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.

Dependencies/assimp/code/AssetLib/FBX/FBXAnimation.cpp

@@ -0,0 +1,269 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2024, assimp 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 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  FBXAnimation.cpp
+ *  @brief Assimp::FBX::AnimationCurve, Assimp::FBX::AnimationCurveNode,
+ *         Assimp::FBX::AnimationLayer, Assimp::FBX::AnimationStack
+ */
+
+#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER
+
+#include "FBXDocument.h"
+#include "FBXDocumentUtil.h"
+#include "FBXImporter.h"
+#include "FBXParser.h"
+
+namespace Assimp {
+namespace FBX {
+
+using namespace Util;
+
+// ------------------------------------------------------------------------------------------------
+AnimationCurve::AnimationCurve(uint64_t id, const Element &element, const std::string &name, const Document & /*doc*/) :
+        Object(id, element, name) {
+    const Scope &sc = GetRequiredScope(element);
+    const Element &KeyTime = GetRequiredElement(sc, "KeyTime");
+    const Element &KeyValueFloat = GetRequiredElement(sc, "KeyValueFloat");
+
+    ParseVectorDataArray(keys, KeyTime);
+    ParseVectorDataArray(values, KeyValueFloat);
+
+    if (keys.size() != values.size()) {
+        DOMError("the number of key times does not match the number of keyframe values", &KeyTime);
+    }
+
+    // check if the key times are well-ordered
+    if (!std::equal(keys.begin(), keys.end() - 1, keys.begin() + 1, std::less<KeyTimeList::value_type>())) {
+        DOMError("the keyframes are not in ascending order", &KeyTime);
+    }
+
+    const Element *KeyAttrDataFloat = sc["KeyAttrDataFloat"];
+    if (KeyAttrDataFloat) {
+        ParseVectorDataArray(attributes, *KeyAttrDataFloat);
+    }
+
+    const Element *KeyAttrFlags = sc["KeyAttrFlags"];
+    if (KeyAttrFlags) {
+        ParseVectorDataArray(flags, *KeyAttrFlags);
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+AnimationCurveNode::AnimationCurveNode(uint64_t id, const Element &element, const std::string &name,
+        const Document &doc, const char *const *target_prop_whitelist /*= nullptr*/,
+        size_t whitelist_size /*= 0*/) :
+        Object(id, element, name), target(), doc(doc) {
+    const Scope &sc = GetRequiredScope(element);
+
+    // find target node
+    const char *whitelist[] = { "Model", "NodeAttribute", "Deformer" };
+    const std::vector<const Connection *> &conns = doc.GetConnectionsBySourceSequenced(ID(), whitelist, 3);
+
+    for (const Connection *con : conns) {
+
+        // link should go for a property
+        if (!con->PropertyName().length()) {
+            continue;
+        }
+
+        if (target_prop_whitelist) {
+            const char *const s = con->PropertyName().c_str();
+            bool ok = false;
+            for (size_t i = 0; i < whitelist_size; ++i) {
+                if (!strcmp(s, target_prop_whitelist[i])) {
+                    ok = true;
+                    break;
+                }
+            }
+
+            if (!ok) {
+                throw std::range_error("AnimationCurveNode target property is not in whitelist");
+            }
+        }
+
+        const Object *const ob = con->DestinationObject();
+        if (!ob) {
+            DOMWarning("failed to read destination object for AnimationCurveNode->Model link, ignoring", &element);
+            continue;
+        }
+
+        target = ob;
+        if (!target) {
+            continue;
+        }
+
+        prop = con->PropertyName();
+        break;
+    }
+
+    if (!target) {
+        DOMWarning("failed to resolve target Model/NodeAttribute/Constraint for AnimationCurveNode", &element);
+    }
+
+    props = GetPropertyTable(doc, "AnimationCurveNode.FbxAnimCurveNode", element, sc, false);
+}
+
+// ------------------------------------------------------------------------------------------------
+const AnimationCurveMap &AnimationCurveNode::Curves() const {
+    if (curves.empty()) {
+        // resolve attached animation curves
+        const std::vector<const Connection *> &conns = doc.GetConnectionsByDestinationSequenced(ID(), "AnimationCurve");
+
+        for (const Connection *con : conns) {
+
+            // link should go for a property
+            if (!con->PropertyName().length()) {
+                continue;
+            }
+
+            const Object *const ob = con->SourceObject();
+            if (nullptr == ob) {
+                DOMWarning("failed to read source object for AnimationCurve->AnimationCurveNode link, ignoring", &element);
+                continue;
+            }
+
+            const AnimationCurve *const anim = dynamic_cast<const AnimationCurve *>(ob);
+            if (nullptr == anim) {
+                DOMWarning("source object for ->AnimationCurveNode link is not an AnimationCurve", &element);
+                continue;
+            }
+
+            curves[con->PropertyName()] = anim;
+        }
+    }
+
+    return curves;
+}
+
+// ------------------------------------------------------------------------------------------------
+AnimationLayer::AnimationLayer(uint64_t id, const Element &element, const std::string &name, const Document &doc) :
+        Object(id, element, name), doc(doc) {
+    const Scope &sc = GetRequiredScope(element);
+
+    // note: the props table here bears little importance and is usually absent
+    props = GetPropertyTable(doc, "AnimationLayer.FbxAnimLayer", element, sc, true);
+}
+
+// ------------------------------------------------------------------------------------------------
+AnimationCurveNodeList AnimationLayer::Nodes(const char *const *target_prop_whitelist /*= nullptr*/,
+        size_t whitelist_size /*= 0*/) const {
+    AnimationCurveNodeList nodes;
+
+    // resolve attached animation nodes
+    const std::vector<const Connection *> &conns = doc.GetConnectionsByDestinationSequenced(ID(), "AnimationCurveNode");
+    nodes.reserve(conns.size());
+
+    for (const Connection *con : conns) {
+
+        // link should not go to a property
+        if (con->PropertyName().length()) {
+            continue;
+        }
+
+        const Object *const ob = con->SourceObject();
+        if (!ob) {
+            DOMWarning("failed to read source object for AnimationCurveNode->AnimationLayer link, ignoring", &element);
+            continue;
+        }
+
+        const AnimationCurveNode *const anim = dynamic_cast<const AnimationCurveNode *>(ob);
+        if (!anim) {
+            DOMWarning("source object for ->AnimationLayer link is not an AnimationCurveNode", &element);
+            continue;
+        }
+
+        if (target_prop_whitelist) {
+            const char *s = anim->TargetProperty().c_str();
+            bool ok = false;
+            for (size_t i = 0; i < whitelist_size; ++i) {
+                if (!strcmp(s, target_prop_whitelist[i])) {
+                    ok = true;
+                    break;
+                }
+            }
+            if (!ok) {
+                continue;
+            }
+        }
+        nodes.push_back(anim);
+    }
+
+    return nodes; // pray for NRVO
+}
+
+// ------------------------------------------------------------------------------------------------
+AnimationStack::AnimationStack(uint64_t id, const Element &element, const std::string &name, const Document &doc) :
+        Object(id, element, name) {
+    const Scope &sc = GetRequiredScope(element);
+
+    // note: we don't currently use any of these properties so we shouldn't bother if it is missing
+    props = GetPropertyTable(doc, "AnimationStack.FbxAnimStack", element, sc, true);
+
+    // resolve attached animation layers
+    const std::vector<const Connection *> &conns = doc.GetConnectionsByDestinationSequenced(ID(), "AnimationLayer");
+    layers.reserve(conns.size());
+
+    for (const Connection *con : conns) {
+
+        // link should not go to a property
+        if (con->PropertyName().length()) {
+            continue;
+        }
+
+        const Object *const ob = con->SourceObject();
+        if (!ob) {
+            DOMWarning("failed to read source object for AnimationLayer->AnimationStack link, ignoring", &element);
+            continue;
+        }
+
+        const AnimationLayer *const anim = dynamic_cast<const AnimationLayer *>(ob);
+        if (!anim) {
+            DOMWarning("source object for ->AnimationStack link is not an AnimationLayer", &element);
+            continue;
+        }
+        layers.push_back(anim);
+    }
+}
+
+} // namespace FBX
+} // namespace Assimp
+
+#endif // ASSIMP_BUILD_NO_FBX_IMPORTER