update assimp to 5.2.3 Bugfix-Release

Engine/lib/assimp/code/AssetLib/Blender/BlenderLoader.h

@@ -0,0 +1,198 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, 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  BlenderLoader.h
+ *  @brief Declaration of the Blender 3D (*.blend) importer class.
+ */
+#pragma once
+#ifndef INCLUDED_AI_BLEND_LOADER_H
+#define INCLUDED_AI_BLEND_LOADER_H
+
+#include <assimp/BaseImporter.h>
+#include <assimp/LogAux.h>
+#include <memory>
+
+struct aiNode;
+struct aiMesh;
+struct aiLight;
+struct aiCamera;
+struct aiMaterial;
+
+namespace Assimp {
+
+// TinyFormatter.h
+namespace Formatter {
+
+template <typename T, typename TR, typename A>
+class basic_formatter;
+
+typedef class basic_formatter<char, std::char_traits<char>, std::allocator<char>> format;
+
+} // namespace Formatter
+
+// BlenderDNA.h
+namespace Blender {
+class FileDatabase;
+struct ElemBase;
+} // namespace Blender
+
+// BlenderScene.h
+namespace Blender {
+struct Scene;
+struct Object;
+struct Collection;
+struct Mesh;
+struct Camera;
+struct Lamp;
+struct MTex;
+struct Image;
+struct Material;
+} // namespace Blender
+
+// BlenderIntermediate.h
+namespace Blender {
+struct ConversionData;
+template <template <typename, typename> class TCLASS, typename T>
+struct TempArray;
+} // namespace Blender
+
+// BlenderModifier.h
+namespace Blender {
+class BlenderModifierShowcase;
+class BlenderModifier;
+} // namespace Blender
+
+// -------------------------------------------------------------------------------------------
+/** Load blenders official binary format. The actual file structure (the `DNA` how they
+ *  call it is outsourced to BlenderDNA.cpp/BlenderDNA.h. This class only performs the
+ *  conversion from intermediate format to aiScene. */
+// -------------------------------------------------------------------------------------------
+class BlenderImporter : public BaseImporter, public LogFunctions<BlenderImporter> {
+public:
+    BlenderImporter();
+    ~BlenderImporter() override;
+    bool CanRead(const std::string &pFile, IOSystem *pIOHandler, bool checkSig) const override;
+
+protected:
+    const aiImporterDesc *GetInfo() const override;
+    void SetupProperties(const Importer *pImp) override;
+    void InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler) override;
+    void ParseBlendFile(Blender::FileDatabase &out, std::shared_ptr<IOStream> stream);
+    void ExtractScene(Blender::Scene &out, const Blender::FileDatabase &file);
+    void ParseSubCollection(const Blender::Scene &in, aiNode *root, std::shared_ptr<Blender::Collection> collection, Blender::ConversionData &conv_data);
+    void ConvertBlendFile(aiScene *out, const Blender::Scene &in, const Blender::FileDatabase &file);
+
+private:
+    aiNode *ConvertNode(const Blender::Scene &in,
+            const Blender::Object *obj,
+            Blender::ConversionData &conv_info,
+            const aiMatrix4x4 &parentTransform);
+
+    // --------------------
+    void ConvertMesh(const Blender::Scene &in,
+            const Blender::Object *obj,
+            const Blender::Mesh *mesh,
+            Blender::ConversionData &conv_data,
+            Blender::TempArray<std::vector, aiMesh> &temp);
+
+    // --------------------
+    aiLight *ConvertLight(const Blender::Scene &in,
+            const Blender::Object *obj,
+            const Blender::Lamp *mesh,
+            Blender::ConversionData &conv_data);
+
+    // --------------------
+    aiCamera *ConvertCamera(const Blender::Scene &in,
+            const Blender::Object *obj,
+            const Blender::Camera *mesh,
+            Blender::ConversionData &conv_data);
+
+    // --------------------
+    void BuildDefaultMaterial(
+            Blender::ConversionData &conv_data);
+
+    // --------------------
+    void AddBlendParams(
+            aiMaterial *result,
+            const Blender::Material *source);
+
+    // --------------------
+    void BuildMaterials(
+            Blender::ConversionData &conv_data);
+
+    // --------------------
+    void ResolveTexture(
+            aiMaterial *out,
+            const Blender::Material *mat,
+            const Blender::MTex *tex,
+            Blender::ConversionData &conv_data);
+
+    // --------------------
+    void ResolveImage(
+            aiMaterial *out,
+            const Blender::Material *mat,
+            const Blender::MTex *tex,
+            const Blender::Image *img,
+            Blender::ConversionData &conv_data);
+
+    // --------------------
+    void AddSentinelTexture(
+            aiMaterial *out,
+            const Blender::Material *mat,
+            const Blender::MTex *tex,
+            Blender::ConversionData &conv_data);
+
+private: // static stuff, mostly logging and error reporting.
+    // --------------------
+    static void CheckActualType(const Blender::ElemBase *dt,
+            const char *check);
+
+    // --------------------
+    static void NotSupportedObjectType(const Blender::Object *obj,
+            const char *type);
+
+private:
+    Blender::BlenderModifierShowcase *modifier_cache;
+
+}; // !class BlenderImporter
+
+} // end of namespace Assimp
+#endif // AI_UNREALIMPORTER_H_INC