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+/*
+---------------------------------------------------------------------------
+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.
+---------------------------------------------------------------------------
+*/
+
+#include "AbstractImportExportBase.h"
+#include "SceneDiffer.h"
+#include "UnitTestPCH.h"
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/Exporter.hpp>
+#include <assimp/Importer.hpp>
+
+using namespace Assimp;
+
+static const float VertComponents[24 * 3] = {
+ -0.500000, 0.500000, 0.500000,
+ -0.500000, 0.500000, -0.500000,
+ -0.500000, -0.500000, -0.500000,
+ -0.500000, -0.500000, 0.500000,
+ -0.500000, -0.500000, -0.500000,
+ 0.500000, -0.500000, -0.500000,
+ 0.500000, -0.500000, 0.500000,
+ -0.500000, -0.500000, 0.500000,
+ -0.500000, 0.500000, -0.500000,
+ 0.500000, 0.500000, -0.500000,
+ 0.500000, -0.500000, -0.500000,
+ -0.500000, -0.500000, -0.500000,
+ 0.500000, 0.500000, 0.500000,
+ 0.500000, 0.500000, -0.500000,
+ -0.500000, 0.500000, -0.500000,
+ -0.500000, 0.500000, 0.500000,
+ 0.500000, -0.500000, 0.500000,
+ 0.500000, 0.500000, 0.500000,
+ -0.500000, 0.500000, 0.500000,
+ -0.500000, -0.500000, 0.500000,
+ 0.500000, -0.500000, -0.500000,
+ 0.500000, 0.500000, -0.500000,
+ 0.500000, 0.500000, 0.500000f,
+ 0.500000, -0.500000, 0.500000f
+};
+
+static const char *ObjModel =
+ "o 1\n"
+ "\n"
+ "# Vertex list\n"
+ "\n"
+ "v -0.5 -0.5 0.5\n"
+ "v -0.5 -0.5 -0.5\n"
+ "v -0.5 0.5 -0.5\n"
+ "v -0.5 0.5 0.5\n"
+ "v 0.5 -0.5 0.5\n"
+ "v 0.5 -0.5 -0.5\n"
+ "v 0.5 0.5 -0.5\n"
+ "v 0.5 0.5 0.5\n"
+ "\n"
+ "# Point / Line / Face list\n"
+ "\n"
+ "g Box01\n"
+ "usemtl Default\n"
+ "f 4 3 2 1\n"
+ "f 2 6 5 1\n"
+ "f 3 7 6 2\n"
+ "f 8 7 3 4\n"
+ "f 5 8 4 1\n"
+ "f 6 7 8 5\n"
+ "\n"
+ "# End of file\n";
+
+static const char *ObjModel_Issue1111 =
+ "o 1\n"
+ "\n"
+ "# Vertex list\n"
+ "\n"
+ "v -0.5 -0.5 0.5\n"
+ "v -0.5 -0.5 -0.5\n"
+ "v -0.5 0.5 -0.5\n"
+ "\n"
+ "usemtl\n"
+ "f 1 2 3\n"
+ "\n"
+ "# End of file\n";
+
+class utObjImportExport : public AbstractImportExportBase {
+protected:
+ void SetUp() override {
+ m_im = new Assimp::Importer;
+ }
+
+ void TearDown() override {
+ delete m_im;
+ m_im = nullptr;
+ }
+
+ aiScene *createScene() {
+ aiScene *expScene = new aiScene;
+ expScene->mNumMeshes = 1;
+ expScene->mMeshes = new aiMesh *[1];
+ aiMesh *mesh = new aiMesh;
+ mesh->mName.Set("Box01");
+ mesh->mNumVertices = 24;
+ mesh->mVertices = new aiVector3D[24];
+ ::memcpy(&mesh->mVertices->x, &VertComponents[0], sizeof(float) * 24 * 3);
+ mesh->mNumFaces = 6;
+ mesh->mFaces = new aiFace[mesh->mNumFaces];
+
+ mesh->mFaces[0].mNumIndices = 4;
+ mesh->mFaces[0].mIndices = new unsigned int[mesh->mFaces[0].mNumIndices];
+ mesh->mFaces[0].mIndices[0] = 0;
+ mesh->mFaces[0].mIndices[1] = 1;
+ mesh->mFaces[0].mIndices[2] = 2;
+ mesh->mFaces[0].mIndices[3] = 3;
+
+ mesh->mFaces[1].mNumIndices = 4;
+ mesh->mFaces[1].mIndices = new unsigned int[mesh->mFaces[0].mNumIndices];
+ mesh->mFaces[1].mIndices[0] = 4;
+ mesh->mFaces[1].mIndices[1] = 5;
+ mesh->mFaces[1].mIndices[2] = 6;
+ mesh->mFaces[1].mIndices[3] = 7;
+
+ mesh->mFaces[2].mNumIndices = 4;
+ mesh->mFaces[2].mIndices = new unsigned int[mesh->mFaces[0].mNumIndices];
+ mesh->mFaces[2].mIndices[0] = 8;
+ mesh->mFaces[2].mIndices[1] = 9;
+ mesh->mFaces[2].mIndices[2] = 10;
+ mesh->mFaces[2].mIndices[3] = 11;
+
+ mesh->mFaces[3].mNumIndices = 4;
+ mesh->mFaces[3].mIndices = new unsigned int[mesh->mFaces[0].mNumIndices];
+ mesh->mFaces[3].mIndices[0] = 12;
+ mesh->mFaces[3].mIndices[1] = 13;
+ mesh->mFaces[3].mIndices[2] = 14;
+ mesh->mFaces[3].mIndices[3] = 15;
+
+ mesh->mFaces[4].mNumIndices = 4;
+ mesh->mFaces[4].mIndices = new unsigned int[mesh->mFaces[0].mNumIndices];
+ mesh->mFaces[4].mIndices[0] = 16;
+ mesh->mFaces[4].mIndices[1] = 17;
+ mesh->mFaces[4].mIndices[2] = 18;
+ mesh->mFaces[4].mIndices[3] = 19;
+
+ mesh->mFaces[5].mNumIndices = 4;
+ mesh->mFaces[5].mIndices = new unsigned int[mesh->mFaces[0].mNumIndices];
+ mesh->mFaces[5].mIndices[0] = 20;
+ mesh->mFaces[5].mIndices[1] = 21;
+ mesh->mFaces[5].mIndices[2] = 22;
+ mesh->mFaces[5].mIndices[3] = 23;
+
+ expScene->mMeshes[0] = mesh;
+
+ expScene->mNumMaterials = 1;
+ expScene->mMaterials = new aiMaterial *[expScene->mNumMaterials];
+
+ return expScene;
+ }
+
+ bool importerTest() override {
+ ::Assimp::Importer importer;
+ const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/OBJ/spider.obj", aiProcess_ValidateDataStructure);
+ return nullptr != scene;
+ }
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+
+ bool exporterTest() override {
+ ::Assimp::Importer importer;
+ ::Assimp::Exporter exporter;
+ const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/OBJ/spider.obj", aiProcess_ValidateDataStructure);
+ EXPECT_NE(nullptr, scene);
+ EXPECT_EQ(aiReturn_SUCCESS, exporter.Export(scene, "obj", ASSIMP_TEST_MODELS_DIR "/OBJ/spider_out.obj"));
+ EXPECT_EQ(aiReturn_SUCCESS, exporter.Export(scene, "objnomtl", ASSIMP_TEST_MODELS_DIR "/OBJ/spider_nomtl_out.obj"));
+
+ return true;
+ }
+
+#endif // ASSIMP_BUILD_NO_EXPORT
+
+protected:
+ ::Assimp::Importer *m_im;
+ aiScene *m_expectedScene;
+};
+
+TEST_F(utObjImportExport, importObjFromFileTest) {
+ EXPECT_TRUE(importerTest());
+}
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+
+TEST_F(utObjImportExport, exportObjFromFileTest) {
+ EXPECT_TRUE(exporterTest());
+}
+
+#endif // ASSIMP_BUILD_NO_EXPORT
+
+TEST_F(utObjImportExport, obj_import_test) {
+ const aiScene *scene = m_im->ReadFileFromMemory((void *)ObjModel, strlen(ObjModel), 0);
+ aiScene *expected = createScene();
+ EXPECT_NE(nullptr, scene);
+
+ SceneDiffer differ;
+ EXPECT_TRUE(differ.isEqual(expected, scene));
+ differ.showReport();
+
+ m_im->FreeScene();
+ for (unsigned int i = 0; i < expected->mNumMeshes; ++i) {
+ delete expected->mMeshes[i];
+ }
+ delete[] expected->mMeshes;
+ expected->mMeshes = nullptr;
+ delete[] expected->mMaterials;
+ expected->mMaterials = nullptr;
+ delete expected;
+}
+
+TEST_F(utObjImportExport, issue1111_no_mat_name_Test) {
+ const aiScene *scene = m_im->ReadFileFromMemory((void *)ObjModel_Issue1111, strlen(ObjModel_Issue1111), 0);
+ EXPECT_NE(nullptr, scene);
+}
+
+TEST_F(utObjImportExport, issue809_vertex_color_Test) {
+ ::Assimp::Importer importer;
+ const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/OBJ/cube_with_vertexcolors.obj", aiProcess_ValidateDataStructure);
+ EXPECT_NE(nullptr, scene);
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+ ::Assimp::Exporter exporter;
+ EXPECT_EQ(aiReturn_SUCCESS, exporter.Export(scene, "obj", ASSIMP_TEST_MODELS_DIR "/OBJ/test_out.obj"));
+#endif // ASSIMP_BUILD_NO_EXPORT
+}
+
+TEST_F(utObjImportExport, issue1923_vertex_color_Test) {
+ ::Assimp::Importer importer;
+ const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/OBJ/cube_with_vertexcolors_uni.obj", aiProcess_ValidateDataStructure);
+ EXPECT_NE(nullptr, scene);
+
+ scene = importer.GetOrphanedScene();
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+ ::Assimp::Exporter exporter;
+ const aiExportDataBlob *blob = exporter.ExportToBlob(scene, "obj");
+ EXPECT_NE(nullptr, blob);
+
+ const aiScene *sceneReImport = importer.ReadFileFromMemory(blob->data, blob->size, aiProcess_ValidateDataStructure);
+ EXPECT_NE(nullptr, scene);
+
+ SceneDiffer differ;
+ EXPECT_TRUE(differ.isEqual(scene, sceneReImport));
+#endif // ASSIMP_BUILD_NO_EXPORT
+
+ delete scene;
+}
+
+TEST_F(utObjImportExport, issue1453_segfault) {
+ static const char *curObjModel =
+ "v 0.0 0.0 0.0\n"
+ "v 0.0 0.0 1.0\n"
+ "v 0.0 1.0 0.0\n"
+ "v 0.0 1.0 1.0\n"
+ "v 1.0 0.0 0.0\n"
+ "v 1.0 0.0 1.0\n"
+ "v 1.0 1.0 0.0\n"
+ "v 1.0 1.0 1.0\nB";
+
+ Assimp::Importer myimporter;
+ const aiScene *scene = myimporter.ReadFileFromMemory(curObjModel, strlen(curObjModel), aiProcess_ValidateDataStructure);
+ EXPECT_EQ(nullptr, scene);
+}
+
+TEST_F(utObjImportExport, relative_indices_Test) {
+ static const char *curObjModel =
+ "v -0.500000 0.000000 0.400000\n"
+ "v -0.500000 0.000000 -0.800000\n"
+ "v -0.500000 1.000000 -0.800000\n"
+ "v -0.500000 1.000000 0.400000\n"
+ "f -4 -3 -2 -1\nB";
+
+ Assimp::Importer myimporter;
+ const aiScene *scene = myimporter.ReadFileFromMemory(curObjModel, strlen(curObjModel), aiProcess_ValidateDataStructure);
+ EXPECT_NE(nullptr, scene);
+
+ EXPECT_EQ(scene->mNumMeshes, 1U);
+ const aiMesh *mesh = scene->mMeshes[0];
+ EXPECT_EQ(mesh->mNumVertices, 4U);
+ EXPECT_EQ(mesh->mNumFaces, 1U);
+ const aiFace face = mesh->mFaces[0];
+ EXPECT_EQ(face.mNumIndices, 4U);
+ for (unsigned int i = 0; i < face.mNumIndices; ++i) {
+ EXPECT_EQ(face.mIndices[i], i);
+ }
+}
+
+TEST_F(utObjImportExport, homogeneous_coordinates_Test) {
+ static const char *curObjModel =
+ "v -0.500000 0.000000 0.400000 0.50000\n"
+ "v -0.500000 0.000000 -0.800000 1.00000\n"
+ "v 0.500000 1.000000 -0.800000 0.5000\n"
+ "f 1 2 3\nB";
+
+ Assimp::Importer myimporter;
+ const aiScene *scene = myimporter.ReadFileFromMemory(curObjModel, strlen(curObjModel), aiProcess_ValidateDataStructure);
+ EXPECT_NE(nullptr, scene);
+
+ EXPECT_EQ(scene->mNumMeshes, 1U);
+ const aiMesh *mesh = scene->mMeshes[0];
+ EXPECT_EQ(mesh->mNumVertices, 3U);
+ EXPECT_EQ(mesh->mNumFaces, 1U);
+ const aiFace face = mesh->mFaces[0];
+ EXPECT_EQ(face.mNumIndices, 3U);
+ const aiVector3D vertice = mesh->mVertices[0];
+ EXPECT_EQ(vertice.x, -1.0f);
+ EXPECT_EQ(vertice.y, 0.0f);
+ EXPECT_EQ(vertice.z, 0.8f);
+}
+
+TEST_F(utObjImportExport, homogeneous_coordinates_divide_by_zero_Test) {
+ static const char *curObjModel =
+ "v -0.500000 0.000000 0.400000 0.\n"
+ "v -0.500000 0.000000 -0.800000 1.00000\n"
+ "v 0.500000 1.000000 -0.800000 0.5000\n"
+ "f 1 2 3\nB";
+
+ Assimp::Importer myimporter;
+ const aiScene *scene = myimporter.ReadFileFromMemory(curObjModel, std::strlen(curObjModel), aiProcess_ValidateDataStructure);
+ EXPECT_EQ(nullptr, scene);
+}
+
+TEST_F(utObjImportExport, 0based_array_Test) {
+ static const char *curObjModel =
+ "v -0.500000 0.000000 0.400000\n"
+ "v -0.500000 0.000000 -0.800000\n"
+ "v -0.500000 1.000000 -0.800000\n"
+ "f 0 1 2\nB";
+
+ Assimp::Importer myImporter;
+ const aiScene *scene = myImporter.ReadFileFromMemory(curObjModel, strlen(curObjModel), 0);
+ EXPECT_EQ(nullptr, scene);
+}
+
+TEST_F(utObjImportExport, invalid_normals_uvs) {
+ static const char *curObjModel =
+ "v -0.500000 0.000000 0.400000\n"
+ "v -0.500000 0.000000 -0.800000\n"
+ "v -0.500000 1.000000 -0.800000\n"
+ "vt 0 0\n"
+ "vn 0 1 0\n"
+ "f 1/1/1 1/1/1 2/2/2\nB";
+
+ Assimp::Importer myImporter;
+ const aiScene *scene = myImporter.ReadFileFromMemory(curObjModel, strlen(curObjModel), 0);
+ EXPECT_NE(nullptr, scene);
+}
+
+TEST_F(utObjImportExport, no_vt_just_vns) {
+ static const char *curObjModel =
+ "v 0 0 0\n"
+ "v 0 0 0\n"
+ "v 0 0 0\n"
+ "v 0 0 0\n"
+ "v 0 0 0\n"
+ "v 0 0 0\n"
+ "v 0 0 0\n"
+ "v 0 0 0\n"
+ "v 0 0 0\n"
+ "v 0 0 0\n"
+ "v 10 0 0\n"
+ "v 0 10 0\n"
+ "vn 0 0 1\n"
+ "vn 0 0 1\n"
+ "vn 0 0 1\n"
+ "vn 0 0 1\n"
+ "vn 0 0 1\n"
+ "vn 0 0 1\n"
+ "vn 0 0 1\n"
+ "vn 0 0 1\n"
+ "vn 0 0 1\n"
+ "vn 0 0 1\n"
+ "vn 0 0 1\n"
+ "vn 0 0 1\n"
+ "f 10/10 11/11 12/12\n";
+
+ Assimp::Importer myImporter;
+ const aiScene *scene = myImporter.ReadFileFromMemory(curObjModel, strlen(curObjModel), 0);
+ EXPECT_NE(nullptr, scene);
+}
+
+TEST_F(utObjImportExport, mtllib_after_g) {
+ ::Assimp::Importer importer;
+ const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/OBJ/cube_mtllib_after_g.obj", aiProcess_ValidateDataStructure);
+ ASSERT_NE(nullptr, scene);
+
+ EXPECT_EQ(scene->mNumMeshes, 1U);
+ const aiMesh *mesh = scene->mMeshes[0];
+ const aiMaterial *mat = scene->mMaterials[mesh->mMaterialIndex];
+ aiString name;
+ ASSERT_EQ(aiReturn_SUCCESS, mat->Get(AI_MATKEY_NAME, name));
+ EXPECT_STREQ("MyMaterial", name.C_Str());
+}
+
+TEST_F(utObjImportExport, import_point_cloud) {
+ ::Assimp::Importer importer;
+ const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/OBJ/point_cloud.obj", 0);
+ ASSERT_NE(nullptr, scene);
+}
+
+TEST_F(utObjImportExport, import_without_linend) {
+ Assimp::Importer myImporter;
+ const aiScene *scene = myImporter.ReadFile(ASSIMP_TEST_MODELS_DIR "/OBJ/box_without_lineending.obj", 0);
+ ASSERT_NE(nullptr, scene);
+}
+
+TEST_F(utObjImportExport, import_with_line_continuations) {
+ static const char *curObjModel =
+ "v -0.5 -0.5 0.5\n"
+ "v -0.5 \\\n"
+ " -0.5 -0.5\n"
+ "v -0.5 \\\n"
+ " 0.5 \\\n"
+ " -0.5\n"
+ "f 1 2 3\n";
+
+ Assimp::Importer myImporter;
+ const aiScene *scene = myImporter.ReadFileFromMemory(curObjModel, strlen(curObjModel), 0);
+ EXPECT_NE(nullptr, scene);
+
+ EXPECT_EQ(scene->mNumMeshes, 1U);
+ EXPECT_EQ(scene->mMeshes[0]->mNumVertices, 3U);
+ EXPECT_EQ(scene->mMeshes[0]->mNumFaces, 1U);
+
+ auto vertices = scene->mMeshes[0]->mVertices;
+ const float threshold = 0.0001f;
+
+ EXPECT_NEAR(vertices[0].x, -0.5f, threshold);
+ EXPECT_NEAR(vertices[0].y, -0.5f, threshold);
+ EXPECT_NEAR(vertices[0].z, 0.5f, threshold);
+
+ EXPECT_NEAR(vertices[1].x, -0.5f, threshold);
+ EXPECT_NEAR(vertices[1].y, -0.5f, threshold);
+ EXPECT_NEAR(vertices[1].z, -0.5f, threshold);
+
+ EXPECT_NEAR(vertices[2].x, -0.5f, threshold);
+ EXPECT_NEAR(vertices[2].y, 0.5f, threshold);
+ EXPECT_NEAR(vertices[2].z, -0.5f, threshold);
+}
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