Merge branch 'master' into sgold/deprecate-blend

.github/workflows/ccpp.yml

@@ -98,7 +98,7 @@ jobs:
       run: cd build/bin && ./unit ${{ steps.hunter_extra_test_args.outputs.args }}
       shell: bash
 
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       if: matrix.name == 'windows-msvc'
       with:
         name: 'assimp-bins-${{ matrix.name }}-${{ github.sha }}'

.github/workflows/cifuzz.yml

@@ -19,7 +19,7 @@ jobs:
         dry-run: false
         language: c++
     - name: Upload Crash
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       if: failure() && steps.build.outcome == 'success'
       with:
         name: artifacts

CMakeLists.txt

@@ -137,7 +137,7 @@ IF (WIN32)
 ELSE()
   OPTION( ASSIMP_BUILD_ZLIB
     "Build your own zlib"
-    ON
+    OFF
   )
 ENDIF()
 
@@ -311,9 +311,9 @@ ELSEIF( MINGW )
     SET(CMAKE_C_FLAGS "-fPIC ${CMAKE_C_FLAGS}")
   ENDIF()
     IF (CMAKE_BUILD_TYPE STREQUAL "Debug")
-      SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wall -Wno-long-long -Wa,-mbig-obj -g ${CMAKE_CXX_FLAGS}")
+      SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wno-dangling-reference -Wall -Wno-long-long -Wa,-mbig-obj -g ${CMAKE_CXX_FLAGS}")
     ELSE()
-      SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wall -Wno-long-long -Wa,-mbig-obj -O3 ${CMAKE_CXX_FLAGS}")
+      SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wno-dangling-reference -Wall -Wno-long-long -Wa,-mbig-obj -O3 ${CMAKE_CXX_FLAGS}")
     ENDIF()
     SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
 ENDIF()

code/AssetLib/3MF/D3MFImporter.cpp

@@ -81,12 +81,17 @@ static constexpr aiImporterDesc desc = {
     "3mf"
 };
 
-bool D3MFImporter::CanRead(const std::string &filename, IOSystem *pIOHandler, bool /*checkSig*/) const {
+bool D3MFImporter::CanRead(const std::string &filename, IOSystem *pIOHandler, bool ) const {
     if (!ZipArchiveIOSystem::isZipArchive(pIOHandler, filename)) {
         return false;
     }
-    D3MF::D3MFOpcPackage opcPackage(pIOHandler, filename);
-    return opcPackage.validate();
+    static const char *const ModelRef = "3D/3dmodel.model";
+    ZipArchiveIOSystem archive(pIOHandler, filename);
+    if (!archive.Exists(ModelRef)) {
+        return false;
+    }
+
+    return true;
 }
 
 void D3MFImporter::SetupProperties(const Importer*) {

code/AssetLib/IFC/IFCReaderGen1_2x3.cpp

@@ -2725,6 +2725,10 @@ template <> size_t GenericFill<IfcSpatialStructureElement>(const DB& db, const L
     do { // convert the 'CompositionType' argument
         std::shared_ptr<const DataType> arg = params[base++];
         if (dynamic_cast<const ISDERIVED*>(&*arg)) { in->ObjectHelper<Assimp::IFC::Schema_2x3::IfcSpatialStructureElement,2>::aux_is_derived[1]=true; break; }
+        if (dynamic_cast<const UNSET *>(&*arg)) {
+            // Consider assigning the default value as in->CompositionType = "ELEMENT".
+            break;
+        }
         try { GenericConvert( in->CompositionType, arg, db ); break; }
         catch (const TypeError& t) { throw TypeError(t.what() + std::string(" - expected argument 8 to IfcSpatialStructureElement to be a `IfcElementCompositionEnum`")); }
     } while (false);

code/AssetLib/Irr/IRRLoader.cpp

@@ -1234,7 +1234,10 @@ void IRRImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
     // Parse the XML
     // Find the scene root from document root.
     const pugi::xml_node &sceneRoot = documentRoot.child("irr_scene");
-    if (!sceneRoot) throw new DeadlyImportError("IRR: <irr_scene> not found in file");
+    if (!sceneRoot) {
+        delete root;
+        throw new DeadlyImportError("IRR: <irr_scene> not found in file");
+    }
     for (pugi::xml_node &child : sceneRoot.children()) {
         // XML elements are either nodes, animators, attributes, or materials
         if (!ASSIMP_stricmp(child.name(), "node")) {

code/AssetLib/MDL/MDLMaterialLoader.cpp

@@ -123,9 +123,8 @@ aiColor4D MDLImporter::ReplaceTextureWithColor(const aiTexture *pcTexture) {
 // Read a texture from a MDL3 file
 void MDLImporter::CreateTextureARGB8_3DGS_MDL3(const unsigned char *szData) {
     const MDL::Header *pcHeader = (const MDL::Header *)mBuffer; //the endianness is already corrected in the InternReadFile_3DGS_MDL345 function
-
-    VALIDATE_FILE_SIZE(szData + pcHeader->skinwidth *
-                                        pcHeader->skinheight);
+    const size_t len = pcHeader->skinwidth * pcHeader->skinheight;
+    VALIDATE_FILE_SIZE(szData + len);
 
     // allocate a new texture object
     aiTexture *pcNew = new aiTexture();

code/AssetLib/Q3BSP/Q3BSPFileImporter.cpp

@@ -395,7 +395,10 @@ void Q3BSPFileImporter::createTriangleTopology(const Q3BSP::Q3BSPModel *pModel,
                 m_pCurrentFace->mIndices = new unsigned int[3];
                 m_pCurrentFace->mIndices[idx] = vertIdx;
             }
-        }
+		} else {
+			m_pCurrentFace->mIndices[idx] = vertIdx;
+		}
+
 
         pMesh->mVertices[vertIdx].Set(pVertex->vPosition.x, pVertex->vPosition.y, pVertex->vPosition.z);
         pMesh->mNormals[vertIdx].Set(pVertex->vNormal.x, pVertex->vNormal.y, pVertex->vNormal.z);

code/AssetLib/glTF2/glTF2Exporter.cpp

@@ -912,6 +912,7 @@ void glTF2Exporter::ExportMaterials() {
                 if (GetMatSpecular(mat, specular)) {
                     mAsset->extensionsUsed.KHR_materials_specular = true;
                     m->materialSpecular = Nullable<MaterialSpecular>(specular);
+                    GetMatColor(mat, m->pbrMetallicRoughness.baseColorFactor, AI_MATKEY_COLOR_DIFFUSE);
                 }
 
                 MaterialSheen sheen;

code/Common/DefaultIOSystem.cpp

@@ -99,12 +99,12 @@ bool DefaultIOSystem::Exists(const char *pFile) const {
         return false;
     }
 #else
-    FILE *file = ::fopen(pFile, "rb");
-    if (!file) {
+	struct stat statbuf;
+    stat(pFile, &statbuf);
+    // test for a regular file
+    if (!S_ISREG(statbuf.st_mode)) {
         return false;
     }
-
-    ::fclose(file);
 #endif
 
     return true;
@@ -116,6 +116,7 @@ IOStream *DefaultIOSystem::Open(const char *strFile, const char *strMode) {
     ai_assert(strFile != nullptr);
     ai_assert(strMode != nullptr);
     FILE *file;
+	
 #ifdef _WIN32
     std::wstring name = Utf8ToWide(strFile);
     if (name.empty()) {
@@ -126,6 +127,7 @@ IOStream *DefaultIOSystem::Open(const char *strFile, const char *strMode) {
 #else
     file = ::fopen(strFile, strMode);
 #endif
+	
     if (!file) {
         return nullptr;
     }

code/Pbrt/PbrtExporter.cpp

@@ -89,22 +89,27 @@ using namespace Assimp;
 
 namespace Assimp {
 
-void ExportScenePbrt (
-    const char* pFile,
-    IOSystem* pIOSystem,
-    const aiScene* pScene,
-    const ExportProperties* /*pProperties*/
-){
+void ExportScenePbrt(const char *pFile, IOSystem *pIOSystem, const aiScene *pScene,
+        const ExportProperties *) {
     std::string path = DefaultIOSystem::absolutePath(std::string(pFile));
     std::string file = DefaultIOSystem::completeBaseName(std::string(pFile));
-
+    path = path + file + ".pbrt";
     // initialize the exporter
     PbrtExporter exporter(pScene, pIOSystem, path, file);
 }
 
 } // end of namespace Assimp
 
-// Constructor
+static void create_embedded_textures_folder(const aiScene *scene, IOSystem *pIOSystem) {
+    if (scene->mNumTextures > 0) {
+        if (!pIOSystem->Exists("textures")) {
+            if (!pIOSystem->CreateDirectory("textures")) {
+                throw DeadlyExportError("Could not create textures/ directory.");
+            }
+        }
+    }
+}
+
 PbrtExporter::PbrtExporter(
         const aiScene *pScene, IOSystem *pIOSystem,
         const std::string &path, const std::string &file) :
@@ -127,10 +132,10 @@ PbrtExporter::PbrtExporter(
         0.f,  0.f,  1.f, 0.f, //
         0.f,  0.f,  0.f, 1.f  //
     ) * mRootTransform;
+    
     // Export embedded textures.
-    if (mScene->mNumTextures > 0)
-        if (!mIOSystem->CreateDirectory("textures"))
-            throw DeadlyExportError("Could not create textures/ directory.");
+    create_embedded_textures_folder(mScene, mIOSystem);
+    
     for (unsigned int i = 0; i < mScene->mNumTextures; ++i) {
         aiTexture* tex = mScene->mTextures[i];
         std::string fn = CleanTextureFilename(tex->mFilename, false);
@@ -176,9 +181,6 @@ PbrtExporter::PbrtExporter(
     outfile->Write(mOutput.str().c_str(), mOutput.str().length(), 1);
 }
 
-// Destructor
-PbrtExporter::~PbrtExporter() = default;
-
 void PbrtExporter::WriteMetaData() {
     mOutput << "#############################\n";
     mOutput << "# Scene metadata:\n";

code/Pbrt/PbrtExporter.h

@@ -70,15 +70,33 @@ class ExportProperties;
 // ---------------------------------------------------------------------
 /** Helper class to export a given scene to a Pbrt file. */
 // ---------------------------------------------------------------------
-class PbrtExporter
-{
+class PbrtExporter {
 public:
     /// Constructor for a specific scene to export
     PbrtExporter(const aiScene *pScene, IOSystem *pIOSystem,
             const std::string &path, const std::string &file);
 
     /// Destructor
-    virtual ~PbrtExporter();
+    virtual ~PbrtExporter() = default;
+
+private:
+    aiMatrix4x4 GetNodeTransform(const aiString &name) const;
+    static std::string TransformAsString(const aiMatrix4x4 &m);
+    static std::string RemoveSuffix(std::string filename);
+    std::string CleanTextureFilename(const aiString &f, bool rewriteExtension = true) const;
+    void WriteMetaData();
+    void WriteWorldDefinition();
+    void WriteCameras();
+    void WriteCamera(int i);
+    void WriteLights();
+    void WriteTextures();
+    static bool TextureHasAlphaMask(const std::string &filename);
+    void WriteMaterials();
+    void WriteMaterial(int i);
+    void WriteMesh(aiMesh *mesh);
+    void WriteInstanceDefinition(int i);
+    void WriteGeometricObjects(aiNode *node, aiMatrix4x4 parentTransform,
+            std::map<int, int> &meshUses);
 
 private:
     // the scene to export
@@ -96,39 +114,11 @@ private:
     /// Name of the file (without extension) where the scene will be exported
     const std::string mFile;
 
-private:
     //  A private set to keep track of which textures have been declared
     std::set<std::string> mTextureSet;
 
     // Transform to apply to the root node and all root objects such as cameras, lights, etc.
     aiMatrix4x4 mRootTransform;
-
-    aiMatrix4x4 GetNodeTransform(const aiString& name) const;
-    static std::string TransformAsString(const aiMatrix4x4& m);
-
-    static std::string RemoveSuffix(std::string filename);
-    std::string CleanTextureFilename(const aiString &f, bool rewriteExtension = true) const;
-
-    void WriteMetaData();
-
-    void WriteWorldDefinition();
-
-    void WriteCameras();
-    void WriteCamera(int i);
-
-    void WriteLights();
-
-    void WriteTextures();
-    static bool TextureHasAlphaMask(const std::string &filename);
-
-    void WriteMaterials();
-    void WriteMaterial(int i);
-
-    void WriteMesh(aiMesh* mesh);
-
-    void WriteInstanceDefinition(int i);
-    void WriteGeometricObjects(aiNode* node, aiMatrix4x4 parentTransform,
-                               std::map<int, int> &meshUses);
 };
 
 } // namespace Assimp

contrib/poly2tri/poly2tri/sweep/sweep.cc

@@ -111,6 +111,9 @@ void Sweep::EdgeEvent(SweepContext& tcx, Edge* edge, Node* node)
 
 void Sweep::EdgeEvent(SweepContext& tcx, Point& ep, Point& eq, Triangle* triangle, Point& point)
 {
+  if (triangle == nullptr)
+   return;
+
   if (IsEdgeSideOfTriangle(*triangle, ep, eq)) {
     return;
   }

include/assimp/IOSystem.hpp

@@ -97,7 +97,7 @@ public:
      *  Create an instance of your derived class and assign it to an
      *  #Assimp::Importer instance by calling Importer::SetIOHandler().
      */
-    IOSystem() AI_NO_EXCEPT;
+    IOSystem() AI_NO_EXCEPT = default;
 
     // -------------------------------------------------------------------
     /** @brief Virtual destructor.
@@ -105,7 +105,7 @@ public:
      *  It is safe to be called from within DLL Assimp, we're constructed
      *  on Assimp's heap.
      */
-    virtual ~IOSystem();
+    virtual ~IOSystem() = default;
 
     // -------------------------------------------------------------------
     /** @brief For backward compatibility
@@ -236,12 +236,6 @@ private:
     std::vector<std::string> m_pathStack;
 };
 
-// ----------------------------------------------------------------------------
-AI_FORCE_INLINE IOSystem::IOSystem() AI_NO_EXCEPT = default;
-
-// ----------------------------------------------------------------------------
-AI_FORCE_INLINE IOSystem::~IOSystem() = default;
-
 // ----------------------------------------------------------------------------
 // For compatibility, the interface of some functions taking a std::string was
 // changed to const char* to avoid crashes between binary incompatible STL

test/CMakeLists.txt

@@ -165,6 +165,7 @@ SET( IMPORTERS
   unit/ImportExport/MDL/utMDLImporter_HL1_Nodes.cpp
   unit/ImportExport/RAW/utRAWImportExport.cpp
   unit/ImportExport/Terragen/utTerragenImportExport.cpp
+  unit/ImportExport/Pbrt/utPbrtImportExport.cpp
 )
 
 SET( MATERIAL

test/unit/ImportExport/Pbrt/utPbrtImportExport.cpp

@@ -0,0 +1,70 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, 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 "UnitTestPCH.h"
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/Importer.hpp>
+#include <assimp/Exporter.hpp>
+
+using namespace Assimp;
+
+class utPbrtImportExport : public AbstractImportExportBase {
+public:
+#ifndef ASSIMP_BUILD_NO_EXPORT
+	bool exporterTest() override {
+		Assimp::Importer importer;
+		const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/OBJ/spider.obj", aiProcess_ValidateDataStructure);
+		EXPECT_NE(scene, nullptr );
+
+        ::Assimp::Exporter exporter;
+		return AI_SUCCESS == exporter.Export(scene, "pbrt", ASSIMP_TEST_MODELS_DIR "/OBJ/spider_out.pbrt");
+    }
+#endif
+};
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+
+TEST_F(utPbrtImportExport, exportTest_Success) {
+    EXPECT_TRUE(exporterTest());
+}
+
+#endif // ASSIMP_BUILD_NO_EXPORT