add support for building openvr

adds an option plus the supporting openvr lib
along with some required patches for their CMake
files.

CMakeLists.txt

@@ -108,6 +108,7 @@ function (superbuild_find_projects var)
   if (WIN32)
     list(APPEND projects
       ftjam
+      openvr
       pywin32)
   endif ()
 

projects/paraview.cmake

@@ -101,6 +101,12 @@ if (PARAVIEW_DEFAULT_SYSTEM_GL AND mesa_enabled)
   set(paraview_mesa_sb_available TRUE)
 endif ()
 
+if (WIN32)
+  list(APPEND paraviews_platform_dependencies
+    openvr
+    )
+endif ()
+
 superbuild_add_project(paraview
   DEBUGGABLE
   DEFAULT_ON
@@ -120,6 +126,7 @@ superbuild_add_project(paraview
     -DBUILD_TESTING:BOOL=OFF
     -DPARAVIEW_BUILD_PLUGIN_CoProcessingScriptGenerator:BOOL=ON
     -DPARAVIEW_BUILD_PLUGIN_EyeDomeLighting:BOOL=ON
+    -DPARAVIEW_BUILD_PLUGIN_OpenVR:BOOL=${openvr_enabled}
     -DPARAVIEW_BUILD_QT_GUI:BOOL=${qt5_enabled}
     -DPARAVIEW_ENABLE_QT_SUPPORT:BOOL=${qt5_enabled}
     -DPARAVIEW_ENABLE_FFMPEG:BOOL=${ffmpeg_enabled}

projects/win32/openvr.cmake

+
+superbuild_add_project(openvr
+  CMAKE_ARGS
+    -DCMAKE_INSTALL_LIBDIR:STRING=lib
+    )
+
+# apply some fixes to the CMakeList files for OpenVR
+#
+# apply MR https://github.com/ValveSoftware/openvr/pull/634
+# apply MR https://github.com/ValveSoftware/openvr/pull/483
+#
+superbuild_apply_patch(openvr improve-install
+  "Improve OpenVR Install")
+
+superbuild_add_extra_cmake_args(
+  -DOPENVR_INCLUDE_DIR:PATH=<INSTALL_DIR>/include
+  -DOPENVR_LIBRARY:FILEPATH=<INSTALL_DIR>/lib/${CMAKE_STATIC_LIBRARY_PREFIX}openvr_api64${CMAKE_STATIC_LIBRARY_SUFFIX}
+  )

projects/win32/patches/openvr-improve-install.patch

+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 94de3ce..fdfc2d2 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -25,6 +25,9 @@ endif()
+ # Get platform.
+ if(WIN32)
+ 	set(PLATFORM_NAME "win")
++  if(BUILD_SHARED)
++     add_definitions(-DVR_BUILD_SHARED)
++  endif()
+ elseif(UNIX AND NOT APPLE)
+   if(CMAKE_SYSTEM_NAME MATCHES ".*Linux")
+     set(PLATFORM_NAME "linux")
+@@ -48,9 +51,9 @@ elseif(APPLE)
+ endif()
+ 
+ # Set output folder for static and shared libraries
+-set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin/${PLATFORM_NAME}${PROCESSOR_ARCH})
+-set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin/${PLATFORM_NAME}${PROCESSOR_ARCH})
+-set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin/${PLATFORM_NAME}${PROCESSOR_ARCH})
++set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/bin/${PLATFORM_NAME}${PROCESSOR_ARCH})
++set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/bin/${PLATFORM_NAME}${PROCESSOR_ARCH})
++set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/bin/${PLATFORM_NAME}${PROCESSOR_ARCH})
+ 
+ # Enable some properties.
+ if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang")
+diff --git a/headers/openvr.h b/headers/openvr.h
+index f945dbc..c8e4811 100644
+--- a/headers/openvr.h
++++ b/headers/openvr.h
+@@ -1191,11 +1191,15 @@ static const uint32_t k_unScreenshotHandleInvalid = 0;
+ // figure out how to import from the VR API dll
+ #if defined(_WIN32)
+ 
++#ifdef VR_BUILD_SHARED
+ #ifdef VR_API_EXPORT
+ #define VR_INTERFACE extern "C" __declspec( dllexport )
+ #else
+ #define VR_INTERFACE extern "C" __declspec( dllimport )
+ #endif
++#else
++#define VR_INTERFACE extern "C"
++#endif
+ 
+ #elif defined(__GNUC__) || defined(COMPILER_GCC) || defined(__APPLE__)
+ 
+diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
+index 58954d6..ad80a4b 100644
+--- a/src/CMakeLists.txt
++++ b/src/CMakeLists.txt
+@@ -22,7 +22,7 @@ elseif(WIN32)
+ endif()
+ 
+ # Add include folders.
+-include_directories(${CMAKE_SOURCE_DIR}/src ${CMAKE_SOURCE_DIR}/headers ${CMAKE_SOURCE_DIR}/src/vrcommon)
++include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/../headers ${CMAKE_CURRENT_SOURCE_DIR}/vrcommon)
+ 
+ if(USE_CUSTOM_LIBCXX)
+ 	link_directories(
+@@ -94,3 +94,4 @@ endif()
+ target_link_libraries(${LIBNAME} ${EXTRA_LIBS})
+ 
+ install(TARGETS ${LIBNAME} DESTINATION lib)
++install (FILES ${CMAKE_SOURCE_DIR}/headers/openvr.h DESTINATION include)

versions.cmake

@@ -104,6 +104,10 @@ superbuild_set_revision(ospray
   URL     "http://www.paraview.org/files/dependencies/ospray-1.3.0.tar.gz"
   URL_MD5 d4d4505ec949d3e88242e9fc8243d50f)
 
+superbuild_set_revision(openvr
+  URL     "http://www.paraview.org/files/dependencies/openvr_1.0.10_win_thin.zip"
+  URL_MD5 062a029869423808aebc32f85edf38e2)
+
 superbuild_set_revision(paraviewwebvisualizer
   URL     "http://www.paraview.org/files/dependencies/visualizer-2.3.0.tar.gz"
   URL_MD5 2559036cfe4d3a6e3d262f9b3f8e2c8f)