new stuff

vendor/assimp/code/AssetLib/USD/USDLoaderImplTinyusdz.h

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+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2026, 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  USDLoader.h
+ *  @brief Declaration of the USD importer class.
+ */
+#pragma once
+
+#ifndef AI_USDLOADER_IMPL_TINYUSDZ_H_INCLUDED
+#define AI_USDLOADER_IMPL_TINYUSDZ_H_INCLUDED
+
+#include "tinyusdz.hh"
+#include "tydra/render-data.hh"
+#include <assimp/BaseImporter.h>
+#include <assimp/scene.h>
+#include <assimp/types.h>
+#include <cstdint>
+#include <vector>
+
+namespace Assimp {
+
+/**
+ * @brief USD Importer implementation using tinyusdz.
+ */
+class USDImporterImplTinyusdz {
+public:
+    /// @brief The class constructor.
+    USDImporterImplTinyusdz() = default;
+
+    /// @brief The class destructor.
+    ~USDImporterImplTinyusdz() = default;
+
+    void InternReadFile(
+            const std::string &pFile,
+            aiScene *pScene,
+            IOSystem *pIOHandler);
+
+    void animations(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene);
+
+    void meshes(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            const std::string &nameWExt);
+
+    void verticesForMesh(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            size_t meshIdx,
+            const std::string &nameWExt);
+
+    void facesForMesh(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            size_t meshIdx,
+            const std::string &nameWExt);
+
+    void normalsForMesh(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            size_t meshIdx,
+            const std::string &nameWExt);
+
+    void materialsForMesh(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            size_t meshIdx,
+            const std::string &nameWExt);
+
+    void uvsForMesh(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            size_t meshIdx,
+            const std::string &nameWExt);
+
+    void materials(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            const std::string &nameWExt);
+
+    void textures(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            const std::string &nameWExt);
+
+    void textureImages(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            const std::string &nameWExt);
+
+    void buffers(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            const std::string &nameWExt);
+
+    aiNode *nodesRecursive(
+            aiNode *pNodeParent,
+            const tinyusdz::tydra::Node &node,
+            const std::vector<tinyusdz::tydra::SkelHierarchy> &skeletons);
+
+    aiNode *skeletonNodesRecursive(
+            aiNode *pNodeParent,
+            const tinyusdz::tydra::SkelNode &joint);
+
+    void sanityCheckNodesRecursive(
+            aiNode *pNode);
+
+    void setupBlendShapes(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            const std::string &nameWExt);
+
+    void blendShapesForMesh(
+            const tinyusdz::tydra::RenderScene &render_scene,
+            aiScene *pScene,
+            size_t meshIdx,
+            const std::string &nameWExt);
+};
+
+} // namespace Assimp
+
+#endif // AI_USDLOADER_IMPL_TINYUSDZ_H_INCLUDED