cleanup and refactoring

raytracer/nvpro_core/cmake/find/FindOptix7.cmake

@@ -0,0 +1,134 @@
+# Try to find OptiX project dll/so and headers
+#
+
+# outputs
+unset(OPTIX7_DLL CACHE)
+unset(OPTIX7_LIB CACHE)
+unset(OPTIX7_FOUND CACHE)
+unset(OPTIX7_INCLUDE_DIR CACHE)
+
+# OPTIX7_LOCATION can be setup to search versions somewhere else
+
+macro ( folder_list result curdir substring )
+  FILE(GLOB children RELATIVE ${curdir} ${curdir}/*${substring}*)
+  SET(dirlist "")
+  foreach ( child ${children})
+    IF(IS_DIRECTORY ${curdir}/${child})
+        LIST(APPEND dirlist ${child})
+    ENDIF()
+  ENDFOREACH()
+  SET(${result} ${dirlist})
+ENDMACRO()
+
+macro(_find_version_path targetVersion targetPath rootName searchList )
+  unset ( targetVersion )
+  unset ( targetPath )
+  SET ( bestver "0.0.0" )
+  SET ( bestpath "" )
+  foreach ( basedir ${searchList} )
+    folder_list ( dirList ${basedir} ${rootName} )
+	  foreach ( checkdir ${dirList} ) 	 
+	    string ( REGEX MATCH "${rootName}(.*)([0-9]+)\\.([0-9]+)\\.([0-9]+)(.*)$" result "${checkdir}" )
+	    if ( "${result}" STREQUAL "${checkdir}" )
+	       # found a path with versioning 
+	       SET ( ver "${CMAKE_MATCH_2}.${CMAKE_MATCH_3}.${CMAKE_MATCH_4}" )
+	       if ( ver VERSION_GREATER bestver )
+	  	    SET ( bestver ${ver} )
+          SET ( bestmajorver ${CMAKE_MATCH_2})
+          SET ( bestminorver ${CMAKE_MATCH_3})
+	  		SET ( bestpath "${basedir}/${checkdir}" )
+	  	 endif ()
+	    endif()	  
+	  endforeach ()		
+  endforeach ()  
+  SET ( ${targetVersion} "${bestver}" )
+  SET ( ${targetPath} "${bestpath}" )
+endmacro()
+
+macro(_find_files targetVar incDir dllName dllName64 folder)
+  unset ( fileList )
+  if(ARCH STREQUAL "x86")
+      file(GLOB fileList "${${incDir}}/../${folder}${dllName}")
+      list(LENGTH fileList NUMLIST)
+      if(NUMLIST EQUAL 0)
+        file(GLOB fileList "${${incDir}}/${folder}${dllName}")
+      endif()
+  else()
+      file(GLOB fileList "${${incDir}}/../${folder}${dllName64}")
+      list(LENGTH fileList NUMLIST)
+      if(NUMLIST EQUAL 0)
+        file(GLOB fileList "${${incDir}}/${folder}${dllName64}")
+      endif()
+  endif()  
+  list(LENGTH fileList NUMLIST)
+  if(NUMLIST EQUAL 0)
+    message(STATUS "MISSING: unable to find ${targetVar} files (${folder}${dllName}, ${folder}${dllName64})" )
+    set (${targetVar} "NOTFOUND")    
+  endif()
+  list(APPEND ${targetVar} ${fileList} )  
+
+  # message ( "File list: ${${targetVar}}" )		#-- debugging
+endmacro()
+
+if (DEFINED OPTIX7_LOCATION OR DEFINED ENV{OPTIX7_LOCATION} )
+  Message(STATUS "using OPTIX7_LOCATION (${OPTIX7_LOCATION})...")
+  if(NOT DEFINED OPTIX7_LOCATION)
+    if(DEFINED ENV{OPTIX7_LOCATION})
+      set(OPTIX7_LOCATION $ENV{OPTIX7_LOCATION})
+    endif()
+  endif()
+  # Locate by version failed. Handle user override for OPTIX7_LOCATION.
+  string ( REGEX MATCH ".*([7]+).([0-9]+).([0-9]+)(.*)$" result "${OPTIX7_LOCATION}" )
+  if ( "${result}" STREQUAL "${OPTIX7_LOCATION}" )
+    SET ( bestver "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}" )
+    SET ( bestmajorver ${CMAKE_MATCH_1})
+    SET ( bestminorver ${CMAKE_MATCH_2})
+    Message(STATUS "found version ${bestver}")
+  else()
+    Message(WARNING "Could NOT extract the version from OptiX7 folder : ${result}")
+  endif()
+  find_path( OPTIX7_INCLUDE_DIR optix.h ${OPTIX7_LOCATION}/include )
+  if ( OPTIX7_INCLUDE_DIR )
+    set (OPTIX7_ROOT_DIR ${OPTIX7_INCLUDE_DIR}/../ )
+  endif()
+endif()
+if(NOT DEFINED OPTIX7_ROOT_DIR)
+ # Locate OptiX by version
+ set ( SEARCH_PATHS
+  $ENV{OPTIX7_LOCATION}
+  ${OPTIX7_LOCATION}
+  ${PROJECT_SOURCE_DIR}/../LocalPackages/Optix
+  ${PROJECT_SOURCE_DIR}/../../LocalPackages/Optix
+  ${PROJECT_SOURCE_DIR}/../../../LocalPackages/Optix
+  C:/ProgramData/NVIDIA\ Corporation
+
+ )
+ 
+ _find_version_path ( OPTIX7_VERSION OPTIX7_ROOT_DIR "OptiX" "${SEARCH_PATHS}" )
+ 
+ message ( STATUS "OptiX version: ${OPTIX7_VERSION}")
+endif()
+
+if (OPTIX7_ROOT_DIR)
+	#-------- Locate HEADERS
+	_find_files( OPTIX7_HEADERS OPTIX7_ROOT_DIR "optix.h" "optix.h" "include/" )
+
+    include(FindPackageHandleStandardArgs)
+
+    SET(OPTIX7_INCLUDE_DIR "${OPTIX7_ROOT_DIR}/include" CACHE PATH "path")
+    add_definitions("-DOPTIX7_PATH=R\"(${OPTIX7_ROOT_DIR})\"")
+    add_definitions("-DOPTIX7_VERSION_STR=\"${OPTIX7_VERSION}\"")
+    
+else(OPTIX7_ROOT_DIR)
+
+  message(WARNING "
+      OPTIX not found. 
+      The OPTIX folder you would specify with OPTIX7_LOCATION should contain:
+      - lib[64] folder: containing the Optix[64_]*.dll or *.so
+      - include folder: containing the include files"
+  )
+endif(OPTIX7_ROOT_DIR)
+
+find_package_handle_standard_args(Optix7 DEFAULT_MSG OPTIX7_ROOT_DIR)
+mark_as_advanced( OPTIX7_FOUND )
+