ENH: support new rendering backend for paraview >= 5.0

ENH: patch paraview 4.4.0 directly before building

- this avoids more manual steps for the user

README.org

@@ -1,11 +1,12 @@
 #                            -*- mode: org; -*-
 #
 #+TITLE:                 OpenFOAM Third-Party packages
-#+AUTHOR:                  The OpenFOAM Foundation
+#+AUTHOR:            The OpenFOAM Foundation / OpenCFD Ltd.
-#+DATE:                           2016-06-14
+#+DATE:                           2016-06-19
 #+LINK:                     http://www.openfoam.org
 #+OPTIONS: author:nil ^:{}
 # Copyright (c) 2014-2016 OpenFOAM Foundation.
+# Copyright (c) 2016 OpenCFD Ltd.
 
 * Description
   Scripts for building third-party packages.
@@ -62,15 +63,12 @@
     does not exist and cannot be installed causing the build and installation to
     fail.
 
-    Additionally for ParaView-4.4.0 there is a bug in the STL reader which can
+    Additionally for ParaView-4.4.0 there is a bug in the STL reader.
-    be patched by running the following command from within the ThirdParty-???
+    (see http://www.openfoam.org/mantisbt/view.php?id=1887).
-    directory:
-    + wget https://raw.githubusercontent.com/Kitware/VTK/40937e934308e5009e80769dc0c451ee4f157749/IO/Geometry/vtkSTLReader.cxx -O ParaView-4.4.0/VTK/IO/Geometry/vtkSTLReader.cxx
-    See also http://www.openfoam.org/mantisbt/view.php?id=1887
 
-    For ParaView-5.0.1, the necessary patches are supplied with the
+    For ParaView-4.4.0 and ParaView-5.0.1,
-    ThirdParty repository (see the etc/patches directory) and are applied
+    the necessary patches are supplied with the ThirdParty repository
-    when building paraview.
+    (see the etc/patches directory) and are applied when building paraview.
 
 *** Building ParaView-5.0.1 with gcc-6.1.0
 ***** Add support for gcc-6.?.?
@@ -79,6 +77,7 @@
       + ParaView-5.0.1/VTK/CMake/GenerateExportHeader.cmake
       specifically limit the gcc versions supported.
       To add support gcc-6.?.? replace the '[345]' with '[3456]'.
+
       This patch is also supplied with the ThirdParty repository and
       applied when building paraview.
 

etc/patches/paraview-4.4.0

@@ -0,0 +1,50 @@
+--- ParaView-4.4.0/VTK/IO/Geometry/vtkSTLReader.cxx.orig	2015-09-11 19:59:24.000000000 +0200
++++ ParaView-4.4.0/VTK/IO/Geometry/vtkSTLReader.cxx	2016-06-19 12:59:50.769770143 +0200
+@@ -448,7 +448,7 @@
+           done = done || (fscanf(fp,"%s", line)==EOF);
+           }
+         }
+-      if (!done)
++      else if (!done)
+         {
+         done = (fgets(line, 255, fp) == 0);
+         lineCount++;
+--- ParaView-5.0.1/VTK/CMake/vtkCompilerExtras.cmake.orig	2016-03-28 17:07:10.000000000 +0200
++++ ParaView-5.0.1/VTK/CMake/vtkCompilerExtras.cmake	2016-06-11 15:10:14.820958942 +0200
+@@ -32,7 +32,7 @@
+     OUTPUT_VARIABLE _gcc_version_info
+     ERROR_VARIABLE _gcc_version_info)
+
+-  string (REGEX MATCH "[345]\\.[0-9]\\.[0-9]*"
++  string (REGEX MATCH "[3-6]\\.[0-9]\\.[0-9]*"
+     _gcc_version "${_gcc_version_info}")
+   if(NOT _gcc_version)
+     string (REGEX REPLACE ".*\\(GCC\\).*([34]\\.[0-9]).*" "\\1.0"
+--- ParaView-5.0.1/VTK/CMake/GenerateExportHeader.cmake.orig	2016-03-28 17:07:10.000000000 +0200
++++ ParaView-5.0.1/VTK/CMake/GenerateExportHeader.cmake	2016-06-11 15:12:16.344357746 +0200
+@@ -166,7 +166,7 @@
+     execute_process(COMMAND ${CMAKE_C_COMPILER} ARGS --version
+       OUTPUT_VARIABLE _gcc_version_info
+       ERROR_VARIABLE _gcc_version_info)
+-    string(REGEX MATCH "[345]\\.[0-9]\\.[0-9]*"
++    string(REGEX MATCH "[3-6]\\.[0-9]\\.[0-9]*"
+       _gcc_version "${_gcc_version_info}")
+     # gcc on mac just reports: "gcc (GCC) 3.3 20030304 ..." without the
+     # patch level, handle this here:
+--- ParaView-5.0.1/Qt/Components/CMakeLists.txt.orig	2016-06-13 09:27:27.827849525 +0200
++++ ParaView-5.0.1/Qt/Components/CMakeLists.txt	2016-06-13 09:29:28.599318445 +0200
+@@ -656,10 +656,10 @@
+ #the pqSGExportStateWizard has subclasses that directly access
+ #the UI file, and currently we don't have a clean way to break this hard
+ #dependency, so for no we install this ui file.
+-if(PARAVIEW_INSTALL_DEVELOPMENT_FILES)
+-  install(FILES "${CMAKE_CURRENT_BINARY_DIR}/ui_pqExportStateWizard.h"
+-          DESTINATION "${VTK_INSTALL_INCLUDE_DIR}")
+-endif()
++#OPENFOAM patch#if(PARAVIEW_INSTALL_DEVELOPMENT_FILES)
++#OPENFOAM patch#  install(FILES "${CMAKE_CURRENT_BINARY_DIR}/ui_pqExportStateWizard.h"
++#OPENFOAM patch#          DESTINATION "${VTK_INSTALL_INCLUDE_DIR}")
++#OPENFOAM patch#endif()
+
+ #IF (NOT PV_INSTALL_NO_DEVELOPMENT)
+ #  # Headers

etc/tools/ParaView3Functions

@@ -394,6 +394,7 @@ configParaView()
     echo "    MPI    support : ${withMPI:-false}"
     echo "    Python support : ${withPYTHON:-false}"
     echo "    MESA   support : ${withMESA:-false}"
+    echo "    GL2  rendering : false"
     echo "    Qt dev support : ${withQT:-false}"
     echo "    Source         : $ParaView_SOURCE_DIR"
     echo "    Build          : $ParaView_BINARY_DIR"

etc/tools/ParaViewFunctions

@@ -252,6 +252,18 @@ addMesaSupport()
 }
 
 
+#
+# new rendering backend
+#
+addGL2Support()
+{
+    if [ "${withGL2:=false}" = true ]
+    then
+        addCMakeVariable  "VTK_RENDERING_BACKEND=OpenGL2"
+    fi
+}
+
+
 addQtSupport()
 {
     QtVersion=none
@@ -405,6 +417,7 @@ configParaView()
     echo "    MPI    support : ${withMPI:-false}"
     echo "    Python support : ${withPYTHON:-false}"
     echo "    MESA   support : ${withMESA:-false}"
+    echo "    GL2  rendering : ${withGL2:-false}"
     echo "    Qt dev support : ${withQT:-false}"
     echo "    Source         : $ParaView_SOURCE_DIR"
     echo "    Build          : $ParaView_BINARY_DIR"

etc/tools/ThirdPartyFunctions

@@ -181,7 +181,7 @@ applyPatch()
         else
             echo "apply patch for $pkg"
             touch "$sentinel"
-            patch -p1 < $patch
+            patch -p1 < $patch 2>&1 | tee $sentinel
         fi
     )
     else

makeParaView

@@ -71,6 +71,12 @@ QMAKE_PATH=""
 # Set the path to cmake
 CMAKE_PATH=""
 
+# new rendering backend (starting with paraview 5.0)
+withGL2=true
+if [ "${ParaView_VERSION%%.*}" = 4 ]
+then withGL2=false
+fi
+
 #
 # NO FURTHER EDITING BELOW THIS LINE
 #
@@ -85,6 +91,7 @@ usage() {
 usage: $Script [OPTION] [CMAKE-OPTION]
 options:
   -rebuild          for repeated builds (-make -install) *use with caution*
+  -gl2              with new rendering backend (if not already enabled)
   -mesa             with mesa (if not already enabled)
   -mpi              with mpi (if not already enabled)
   -python           with python (if not already enabled)
@@ -123,13 +130,17 @@ For finer control, the build stages can be selected or deselected individually:
       \$WM_THIRD_PARTY_DIR/ParaView-$ParaView_VERSION
   ->  \$WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER/paraview-$ParaView_VERSION
 
+To change the paraview version, use the 'foamPV' command prior to '$Script'.
+For example,
+    foamPV 4.4.0 ; ./makeParaview
+
 USAGE
     exit 1
 }
 
 #------------------------------------------------------------------------------
 
-# ensure CMake gets the correct C++ compiler
+# ensure CMake gets the correct C/C++ compiler
 [ -n "$WM_CXX" ] && export CXX="$WM_CXX"
 [ -n "$WM_CC" ] && export CC="$WM_CC"
 
@@ -197,6 +208,12 @@ do
         runINSTALL=true
         unset runDEFAULT
         ;;
+    -gl2)
+        withGL2=true
+        ;;
+    -no-gl2)
+        withGL2=false
+        ;;
     -mesa)
         withMESA=true
         ;;
@@ -290,6 +307,7 @@ addVerbosity        # verbose makefiles
 addMpiSupport       # set MPI-specific options
 addPythonSupport    # set Python-specific options
 addMesaSupport      # set MESA-specific options
+addGL2Support       # new rendering backend
 addQtSupport        # add extra Qt support
 
 setDirs             # where things are or should be put

makeParaView3

@@ -121,13 +121,17 @@ For finer control, the build stages can be selected or deselected individually:
       \$WM_THIRD_PARTY_DIR/ParaView-$ParaView_VERSION
   ->  \$WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER/paraview-$ParaView_VERSION
 
+To make a different paraview version, use the 'foamPV' command prior to '$Script'.
+For example,
+    foamPV 3.14.0 ; ./makeParaview
+
 USAGE
     exit 1
 }
 
 #------------------------------------------------------------------------------
 
-# ensure CMake gets the correct C++ compiler
+# ensure CMake gets the correct C/C++ compiler
 [ -n "$WM_CXX" ] && export CXX="$WM_CXX"
 [ -n "$WM_CC" ] && export CC="$WM_CC"