0032960: Wrong result of BRepExtrema_DistShapeShape after translation.

Add corresponding test.

CMakeLists.txt

@@ -26,6 +26,16 @@ else ()
 endif()
 set (CMAKE_CXX_STANDARD_REQUIRED ON)
 
+# TBB
+# There are differences between naming of main intel oneTBB library under Windows and Linux/Mac.
+# Under Windows it called `tbb12` (files tbb12.lib/tbb12.dll), but under Linux it called `tbb` (file libtbb.so).
+# Therefore, we make here global variable with kernel oneTBB library name: TBB_MAIN_LIBRARY_NAME.
+if (WIN32)
+  set(TBB_MAIN_LIBRARY_NAME "TBB12")
+else()
+  set(TBB_MAIN_LIBRARY_NAME "TBB")
+endif()
+
 # macro: include patched file if it exists
 macro (OCCT_INCLUDE_CMAKE_FILE BEING_INCLUDED_FILE)
   if (BUILD_PATCH AND EXISTS "${BUILD_PATCH}/${BEING_INCLUDED_FILE}.cmake")
@@ -733,14 +743,14 @@ if (NOT DEFINED ANDROID AND CAN_USE_TBB)
     add_definitions (-DHAVE_TBB)
     OCCT_INCLUDE_CMAKE_FILE ("adm/cmake/tbb")
   else()
-    OCCT_CHECK_AND_UNSET_GROUP ("3RDPARTY_TBB")
+    OCCT_CHECK_AND_UNSET_GROUP ("3RDPARTY_${TBB_MAIN_LIBRARY_NAME}")
     OCCT_CHECK_AND_UNSET_GROUP ("3RDPARTY_TBBMALLOC")
     OCCT_CHECK_AND_UNSET ("INSTALL_TBB")
   endif()
 else()
   OCCT_CHECK_AND_UNSET ("USE_TBB")
 
-  OCCT_CHECK_AND_UNSET_GROUP ("3RDPARTY_TBB")
+  OCCT_CHECK_AND_UNSET_GROUP ("3RDPARTY_${TBB_MAIN_LIBRARY_NAME}")
   OCCT_CHECK_AND_UNSET_GROUP ("3RDPARTY_TBBMALLOC")
   OCCT_CHECK_AND_UNSET ("INSTALL_TBB")
 endif()

adm/cmake/occt_csf.cmake

@@ -12,7 +12,9 @@ endif()
 
 # TBB
 if (USE_TBB)
-  set (CSF_TBB "tbb tbbmalloc")
+  set (TBB_MAIN_LIBRARY_NAME_LOWERCASE "")
+  string (TOLOWER "${TBB_MAIN_LIBRARY_NAME}" TBB_MAIN_LIBRARY_NAME_LOWERCASE)
+  set (CSF_TBB "${TBB_MAIN_LIBRARY_NAME_LOWERCASE} tbbmalloc")
 else()
   set (CSF_TBB)
 endif()

adm/cmake/tbb.cmake

@@ -286,9 +286,9 @@ endmacro()
   else()
     # the library directory for using by the executable
     if (WIN32)
-      set (USED_3RDPARTY_TBB_DIR ${3RDPARTY_TBB_DLL_DIR})
+      set (USED_3RDPARTY_TBB_DIR ${3RDPARTY_${TBB_MAIN_LIBRARY_NAME}_DLL_DIR})
     else()
-      set (USED_3RDPARTY_TBB_DIR ${3RDPARTY_TBB_LIBRARY_DIR})
+      set (USED_3RDPARTY_TBB_DIR ${3RDPARTY_${TBB_MAIN_LIBRARY_NAME}_LIBRARY_DIR})
     endif()
   endif()
 #endif()

adm/genconfdeps.tcl

@@ -759,6 +759,10 @@ proc wokdep:SearchTBB {theErrInc theErrLib32 theErrLib64 theErrBin32 theErrBin64
     }
 
     set aTbbLibPath [wokdep:SearchLib "tbb" "$anArchIter"]
+    set aTbbMainLibName "tbb"
+    if { "$::tcl_platform(platform)" == "windows" } {
+      set aTbbMainLibName "tbb12"
+    }
     if { "$aTbbLibPath" == "" } {
       set aPath [wokdep:Preferred [glob -nocomplain -directory "$::PRODUCTS_PATH" -type d *{tbb}*] $aVcLib "$anArchIter" ]
       set aTbbLibPath [wokdep:SearchLib "tbb" "$anArchIter" "$aPath/lib/$aSubDir/$aVcLib"]
@@ -775,19 +779,19 @@ proc wokdep:SearchTBB {theErrInc theErrLib32 theErrLib64 theErrBin32 theErrBin64
         lappend ::CSF_OPT_LIB$anArchIter "$aPath/lib/$aSubDir/$aVcLib"
       }
       if { "$aTbbLibPath" == "" } {
-        lappend anErrLib$anArchIter "Error: '${::SYS_LIB_PREFIX}tbb.${::SYS_LIB_SUFFIX}' not found (Intel TBB)"
+        lappend anErrLib$anArchIter "Error: '${::SYS_LIB_PREFIX}$aTbbMainLibName.${::SYS_LIB_SUFFIX}' not found (Intel TBB)"
         if { "$::ARCH" == "$anArchIter"} { set isFound "false" }
       }
     }
     if { "$::tcl_platform(platform)" == "windows" } {
-      set aTbbDllPath [wokdep:SearchBin "tbb.dll" "$anArchIter"]
+      set aTbbDllPath [wokdep:SearchBin "$aTbbMainLibName.dll" "$anArchIter"]
       if { "$aTbbDllPath" == "" } {
         set aPath [wokdep:Preferred [glob -nocomplain -directory "$::PRODUCTS_PATH" -type d *{tbb}*] $aVcLib "$anArchIter" ]
-        set aTbbDllPath [wokdep:SearchBin "tbb.dll" "$anArchIter" "$aPath/bin/$aSubDir/$aVcLib"]
+        set aTbbDllPath [wokdep:SearchBin "$aTbbMainLibName.dll" "$anArchIter" "$aPath/bin/$aSubDir/$aVcLib"]
         if { "$aTbbDllPath" != "" } {
           lappend ::CSF_OPT_BIN$anArchIter "$aPath/bin/$aSubDir/$aVcLib"
         } else {
-          lappend anErrBin$anArchIter "Error: 'tbb.dll' not found (Intel TBB)"
+          lappend anErrBin$anArchIter "Error: '$aTbbMainLibName.dll' not found (Intel TBB)"
           if { "$::ARCH" == "$anArchIter"} { set isFound "false" }
         }
       }

adm/genproj.tcl

@@ -1437,7 +1437,11 @@ proc osutils:csfList { theOS theCsfLibsMap theCsfFrmsMap theRelease} {
     set aLibsMap(CSF_FFmpeg) "avcodec avformat swscale avutil"
   }
   if { "$::HAVE_TBB" == "true" } {
-    set aLibsMap(CSF_TBB) "tbb tbbmalloc"
+    if { "$theOS" == "wnt" } {
+      set aLibsMap(CSF_TBB) "tbb12 tbbmalloc"
+    } else {
+      set aLibsMap(CSF_TBB) "tbb tbbmalloc"
+    }
   }
   if { "$::HAVE_VTK" == "true" } {
     if { "$theOS" == "wnt" } {

adm/qmake/OccToolkit.pri

@@ -23,7 +23,11 @@ CSF_TclLibs   = -ltcl8.6
 CSF_TclTkLibs = -ltk8.6
 HAVE_FREEIMAGE { CSF_FreeImagePlus = -lfreeimage } else:win32 { CSF_FreeImagePlus = -lwindowscodecs -lole32 }
 HAVE_FFMPEG    { CSF_FFmpeg = -lavcodec -lavformat -lswscale -lavutil }
-HAVE_TBB       { CSF_TBB = -ltbb -ltbbmalloc }
+win32 {
+  HAVE_TBB       { CSF_TBB = -ltbb12 -ltbbmalloc }
+} else {
+  HAVE_TBB       { CSF_TBB = -ltbb -ltbbmalloc }
+}
 HAVE_ZLIB      { CSF_ZLIB = -lzlib }
 HAVE_LIBLZMA   { CSF_LIBLZMA = -lliblzma }
 HAVE_DRACO     { CSF_Draco = -ldraco }

adm/templates/custom.build.bat.in

@@ -11,7 +11,7 @@ if /I "%VCVER%" == "@COMPILER@" (
     set "FREEIMAGE_DIR=@3RDPARTY_FREEIMAGE_DLL_DIRS@"
     set "EGL_DIR=@3RDPARTY_EGL_DLL_DIRS@"
     set "GLES2_DIR=@3RDPARTY_GLES2_DLL_DIRS@"
-    set "TBB_DIR=@3RDPARTY_TBB_DLL_DIR@"
+    set "TBB_DIR=@3RDPARTY_TBB12_DLL_DIR@"
     set "VTK_DIR=@3RDPARTY_VTK_DLL_DIR@"
     set "FFMPEG_DIR=@3RDPARTY_FFMPEG_DLL_DIR@"
     set "OPENVR_DIR=@3RDPARTY_OPENVR_DLL_DIRS@"

dox/build/build_3rdparty/building_3rdparty.md

@@ -128,8 +128,9 @@ You can download its sources from https://freetype.org/
 
 @subsection dev_guides__building_3rdparty_win_3_1 TBB
 
-This third-party product is installed with binaries from the archive that can be downloaded from https://github.com/intel/tbb.
-Go to the **Download** page, find the release version you need (e.g. `tbb30_018oss`) and pick the archive for Windows platform.
+This third-party product is installed with binaries from the archive that can be downloaded from https://github.com/oneapi-src/oneTBB/releases/tag/v2021.5.0.
+Go to the **Download** page, find the release version you need (e.g. `oneTBB 2021.5.0`) and pick the archive for Windows platform.
+To install, unpack the downloaded archive of TBB product (`oneapi-tbb-2021.5.0-win.zip`)
 
 Unpack the downloaded archive of TBB product into the `3rdparty` folder.
 
@@ -304,9 +305,9 @@ Download the necessary archive from https://freetype.org/ and unpack it.
 
 @subsection dev_guides__building_3rdparty_linux_3_1 TBB
 
-This third-party product is installed with binaries from the archive that can be downloaded from https://github.com/intel/tbb.
-Go to the **Download** page, find the release version you need and pick the archive for Linux platform.
-To install, unpack the downloaded archive of TBB product.
+This third-party product is installed with binaries from the archive that can be downloaded from https://github.com/oneapi-src/oneTBB/releases/tag/v2021.5.0.
+Go to the **Download** page, find the release version you need (e.g. `oneTBB 2021.5.0`) and pick the archive for Linux platform.
+To install, unpack the downloaded archive of TBB product (`oneapi-tbb-2021.5.0-lin.tgz`).
 
 @subsection dev_guides__building_3rdparty_linux_3_3 FreeImage
 
@@ -477,9 +478,9 @@ Download the necessary archive from https://freetype.org/ and unpack it.
 
 @subsection dev_guides__building_3rdparty_osx_3_1 TBB
 
-This third-party product is installed with binaries from the archive that can be downloaded from https://github.com/intel/tbb.
-Go to the **Download** page, find the release version you need (e.g. `tbb30_018oss`) and pick the archive for Mac OS X platform.
-To install, unpack the downloaded archive of TBB product (`tbb30_018oss_osx.tgz`).
+This third-party product is installed with binaries from the archive that can be downloaded from https://github.com/oneapi-src/oneTBB/releases/tag/v2021.5.0.
+Go to the **Download** page, find the release version you need (e.g. `oneTBB 2021.5.0`) and pick the archive for Mac OS X platform.
+To install, unpack the downloaded archive of TBB product (`oneapi-tbb-2021.5.0-mac.tgz`).
 
 @subsection dev_guides__building_3rdparty_osx_3_3 FreeImage
 

dox/introduction/introduction.md

@@ -360,7 +360,7 @@ https://dev.opencascade.org/resources/download/3rd-party-components
 | Component | Where to find | Used for | Purpose |
 | --------- | ------------- | -------- | -------------------- |
 | CMake 3.1+ | https://cmake.org/ | Configuration | Build from sources |
-| Intel TBB 4.x or later | https://oneapi-src.github.io/oneTBB/ | All | Parallelization of algorithms (alternative to built-in thread pool) |
+| Intel oneTBB 2021.5.0 | https://github.com/oneapi-src/oneTBB/releases/tag/v2021.5.0 | All | Parallelization of algorithms (alternative to built-in thread pool) |
 | OpenGL 3.3+, OpenGL ES 2.0+ | System | Visualization | Required for using 3D Viewer |
 | OpenVR 1.10+ | https://github.com/ValveSoftware/openvr | Visualization | VR (Virtual Reality) support in 3D Viewer |
 | FreeType 2.4+ | https://www.freetype.org/download.html | Visualization | Text rendering in 3D Viewer |
@@ -572,7 +572,7 @@ FreeType 2 is released under two open-source licenses: BSD-like FreeType License
 It is a library that helps you to take advantage of multi-core processor performance without having to be a threading expert. 
 Threading Building Blocks is not just a threads-replacement library. It represents a higher-level, task-based parallelism that 
 abstracts platform details and threading mechanisms for scalability and performance. 
-TBB version 2017 is available under Apache 2.0 license, while older versions 
+oneTBB 2021.5.0 is available under Apache 2.0 license, while older versions
 until 4.4 are available under GPLv2 license with the runtime exception (https://www.threadingbuildingblocks.org).
 
 **OpenGL** is an industry standard API for 3D graphics used by OCCT for 

samples/qt/IESample/IESample.pro

@@ -51,7 +51,11 @@ unix {
     DEFINES += OCC_CONVERT_SIGNALS QT_NO_STL
     !macx | equals(MACOSX_USE_GLX, true): LIBS += -L$$QMAKE_LIBDIR_X11 $$QMAKE_LIBS_X11 -L$$QMAKE_LIBDIR_OPENGL $$QMAKE_LIBS_OPENGL $$QMAKE_LIBS_THREAD
     LIBS += -lfreeimageplus
-    LIBS += -ltbb -ltbbmalloc
+    win32 {
+      LIBS += -ltbb12 -ltbbmalloc
+    } else {
+      LIBS += -ltbb -ltbbmalloc
+    }
     QMAKE_CXXFLAGS += -std=gnu++11
 }
 

src/OSD/OSD_Parallel.hxx

@@ -125,10 +125,10 @@ protected:
 
     // Since C++20 inheritance from std::iterator is deprecated, so define predefined types manually:
     using iterator_category = std::forward_iterator_tag;
-    using value_type = UniversalIterator;
+    using value_type = IteratorInterface*;
     using difference_type = ptrdiff_t;
-    using pointer = UniversalIterator*;
-    using reference = UniversalIterator&;
+    using pointer = value_type;
+    using reference = value_type;
 
     UniversalIterator() {}
 
@@ -171,18 +171,8 @@ protected:
       return aValue;
     }
 
-    const UniversalIterator& operator* () const { return *this; }
-          UniversalIterator& operator* ()       { return *this; }
-
-    const UniversalIterator* operator->() const { return this; }
-          UniversalIterator* operator->()       { return this; }
-
-    // type cast to actual iterator
-    template <typename Iterator>
-    const Iterator& DownCast () const
-    {
-      return dynamic_cast<OSD_Parallel::IteratorWrapper<Iterator>*>(myPtr.get())->Value();
-    }
+    reference const operator* () const { return myPtr.get(); }
+    reference operator* () { return myPtr.get(); }
 
   private:
     std::unique_ptr<IteratorInterface> myPtr;
@@ -196,7 +186,14 @@ protected:
   public:
     virtual ~FunctorInterface() {}
 
-    virtual void operator () (UniversalIterator& theIterator) const = 0;
+    virtual void operator () (IteratorInterface* theIterator) const = 0;
+
+    // type cast to actual iterator
+    template <typename Iterator>
+    static const Iterator& DownCast(IteratorInterface* theIterator)
+    {
+      return dynamic_cast<OSD_Parallel::IteratorWrapper<Iterator>*>(theIterator)->Value();
+    }
   };
 
 private:
@@ -211,9 +208,9 @@ private:
     {
     }
 
-    virtual void operator() (UniversalIterator& theIterator) const Standard_OVERRIDE
+    virtual void operator() (IteratorInterface* theIterator) const Standard_OVERRIDE
     {
-      const Iterator& anIt = theIterator.DownCast<Iterator>();
+      const Iterator& anIt = DownCast<Iterator>(theIterator);
       myFunctor(*anIt);
     }
 
@@ -233,9 +230,9 @@ private:
     {
     }
 
-    virtual void operator() (UniversalIterator& theIterator) const Standard_OVERRIDE
+    virtual void operator() (IteratorInterface* theIterator) const Standard_OVERRIDE
     {
-      Standard_Integer anIndex = theIterator.DownCast<Standard_Integer>();
+      Standard_Integer anIndex = DownCast<Standard_Integer>(theIterator);
       myFunctor(anIndex);
     }
 

src/OSD/OSD_Parallel_Threads.cxx

@@ -100,7 +100,7 @@ namespace
       {
         for (OSD_Parallel::UniversalIterator anIter = myRange.It(); anIter != myRange.End(); anIter = myRange.It())
         {
-          myPerformer (anIter);
+          myPerformer (*anIter);
         }
       }
 

tests/bugs/fclasses/bug32960

@@ -0,0 +1,16 @@
+puts "========"
+puts "OCC32960: Wrong result of BRepExtrema_DistShapeShape after translation"
+puts "========"
+# Correct distance is 1.0
+
+restore [locate_data_file bug32960.brep] aShape
+explode aShape
+set anInfo [distmini d aShape_1 aShape_2]
+
+# Check extrema distance
+set absTol 1.0e-7
+set relTol 1.0e-7
+set aDist_Exp 1.0
+set aDist [dval d_val]
+checkreal "Distance value check" $aDist $aDist_Exp $absTol $relTol
+