CMake configuration definitions to enable OpenGL Interop

Copy all OpenGL interop related configurations from the DAX CMake files

CMake/FindGLEW.cmake

+# - Find the OpenGL Extension Wrangler Library (GLEW)
+# This module defines the following variables:
+#  GLEW_INCLUDE_DIRS - include directories for GLEW
+#  GLEW_LIBRARIES - libraries to link against GLEW
+#  GLEW_FOUND - true if GLEW has been found and can be used
+
+#=============================================================================
+# Copyright 2012 Benjamin Eikel
+#
+# CMake - Cross Platform Makefile Generator
+# Copyright 2000-2011 Kitware, Inc., Insight Software Consortium
+# All rights reserved.
+#
+# Redistribution and use 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 names of Kitware, Inc., the Insight Software Consortium,
+#   nor the names of their contributors may be used to endorse or promote
+#   products derived from this software without specific prior written
+#   permission.
+#
+# 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
+# HOLDER 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.
+#
+# ------------------------------------------------------------------------------
+#
+# The above copyright and license notice applies to distributions of
+# CMake in source and binary form.  Some source files contain additional
+# notices of original copyright by their contributors; see each source
+# for details.  Third-party software packages supplied with CMake under
+# compatible licenses provide their own copyright notices documented in
+# corresponding subdirectories.
+#
+# ------------------------------------------------------------------------------
+#
+# CMake was initially developed by Kitware with the following sponsorship:
+#
+#  * National Library of Medicine at the National Institutes of Health
+#    as part of the Insight Segmentation and Registration Toolkit (ITK).
+#
+#  * US National Labs (Los Alamos, Livermore, Sandia) ASC Parallel
+#    Visualization Initiative.
+#
+#  * National Alliance for Medical Image Computing (NAMIC) is funded by the
+#    National Institutes of Health through the NIH Roadmap for Medical Research,
+#    Grant U54 EB005149.
+#
+#  * Kitware, Inc.
+
+
+find_path(GLEW_INCLUDE_DIR GL/glew.h)
+find_library(GLEW_LIBRARY NAMES GLEW glew32 glew glew32s PATH_SUFFIXES lib64)
+
+set(GLEW_INCLUDE_DIRS ${GLEW_INCLUDE_DIR})
+set(GLEW_LIBRARIES ${GLEW_LIBRARY})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(GLEW
+                                  REQUIRED_VARS GLEW_INCLUDE_DIR GLEW_LIBRARY)
+
+mark_as_advanced(GLEW_INCLUDE_DIR GLEW_LIBRARY)

CMakeLists.txt

@@ -157,6 +157,30 @@ unset(VTKM_USE_DOUBLE_PRECISION)
 unset(VTKM_USE_64BIT_IDS)
 
 
+#-----------------------------------------------------------------------------
+# Find OpenGL and GLEW, if both are found we can enable
+# the OpenGL Interop support. We use
+include(CMakeDependentOption)
+
+# enable Interop only if we have OpenGL and GLEW
+find_package(OpenGL)
+find_package(GLEW)
+find_package(GLUT)
+
+#dependent option reads, value to set, if condition is true, otherwise
+#use last value
+CMAKE_DEPENDENT_OPTION(VTKm_ENABLE_OPENGL_INTEROP
+                       "Enable OpenGL Interop will require GLEW"
+                       ON "OPENGL_FOUND;GLEW_FOUND" OFF)
+
+#Only enable OpenGL Interop tests if we have Interop enabled
+#and we have GLUT
+#dependent option reads, value to set, if condition is true, otherwise
+#use last value
+CMAKE_DEPENDENT_OPTION(VTKm_ENABLE_OPENGL_TESTS
+                       "Enable OpenGL Interop Render Window Tests"
+                       ON "VTKm_ENABLE_OPENGL_INTEROP;GLUT_FOUND" OFF)
+
 find_package(Pyexpander)
 
 #-----------------------------------------------------------------------------
@@ -217,6 +241,9 @@ install(FILES ${VTKm_SOURCE_DIR}/LICENSE.txt
 install(
   FILES
     ${VTKm_SOURCE_DIR}/CMake/FindBoostHeaders.cmake
+    ${VTKm_SOURCE_DIR}/CMake/FindGLEW.cmake
+    ${VTKm_SOURCE_DIR}/CMake/FindTBB.cmake
+    ${VTKm_SOURCE_DIR}/CMake/FindThrust.cmake
   DESTINATION ${VTKm_INSTALL_CMAKE_MODULE_DIR}
   )
 
@@ -224,6 +251,7 @@ install(
 install(
   FILES
     ${VTKm_SOURCE_DIR}/CMake/UseVTKmSerial.cmake
+    ${VTKm_SOURCE_DIR}/CMake/UseVTKmTBB.cmake
     ${VTKm_SOURCE_DIR}/CMake/UseVTKmCuda.cmake
   DESTINATION ${VTKm_INSTALL_CMAKE_MODULE_DIR}
   )

vtkm/CMakeLists.txt

@@ -48,6 +48,10 @@ vtkm_declare_headers(${headers})
 add_subdirectory(testing)
 add_subdirectory(internal)
 
+if(VTKm_ENABLE_OPENGL_INTEROP)
+  add_subdirectory(opengl)
+endif(VTKm_ENABLE_OPENGL_INTEROP)
+
 #-----------------------------------------------------------------------------
 #add the control and exec folders
 add_subdirectory(cont)

vtkm/internal/Configure.h.in

@@ -131,6 +131,11 @@
 #define VTKM_THIRDPARTY_POST_INCLUDE
 #endif
 
+//Mark if we are building with interop enabled
+#ifndef VTKm_ENABLE_OPENGL_INTEROP
+#cmakedefine VTKm_ENABLE_OPENGL_INTEROP
+#endif
+
 // Determine whether we will use variadic templates (a new feature in C++11).
 // Currently have VARIADIC_TEMPLATE support off.
 #cmakedefine VTKM_NO_VARIADIC_TEMPLATE