Integrated "Fattal02" tone-mapping operator from Luminance HDR

CMakeLists.txt

@@ -307,6 +307,7 @@ if(WITH_SYSTEM_KLT)
     find_package(KLT REQUIRED)
 endif()
 
+
 # Check for libcanberra-gtk3 (sound events on Linux):
 if(UNIX AND(NOT APPLE))
     pkg_check_modules(CANBERRA-GTK REQUIRED libcanberra-gtk3)
@@ -341,6 +342,16 @@ if(OPTION_OMP)
     endif()
 endif()
 
+# check for libfftw3f_omp
+if(OPENMP_FOUND)
+    find_library(fftw3f_omp fftw3f_omp PATHS ${FFTW3F_LIBRARY_DIRS})
+    if(fftw3f_omp)
+        add_definitions(-DRT_FFTW3F_OMP)
+        set(FFTW3F_LIBRARIES ${FFTW3F_LIBRARIES} ${fftw3f_omp})
+    endif()
+endif()
+
+
 # Find out whether we are building out of source:
 get_filename_component(ABS_SOURCE_DIR "${PROJECT_SOURCE_DIR}" ABSOLUTE)
 get_filename_component(ABS_BINARY_DIR "${CMAKE_BINARY_DIR}" ABSOLUTE)