Merge pull request #3912 from mattiaverga/klt

Optionally use system KLT library

CMakeLists.txt

@@ -112,6 +112,7 @@ option(WITH_MYFILE_MMAP "Build using memory mapped file" ON)
 option(WITH_LTO "Build with link-time optimizations" OFF)
 option(WITH_SAN "Build with run-time sanitizer" OFF)
 option(WITH_PROF "Build with profiling instrumentation" OFF)
+option(WITH_SYSTEM_KLT "Build using system's KLT libraries." OFF)
 option(OPTION_OMP "Build with OpenMP support" ON)
 option(STRICT_MUTEX "True (recommended): MyMutex will behave like POSIX Mutex; False: MyMutex will behave like POSIX RecMutex; Note: forced to ON for Debug builds" ON)
 option(TRACE_MYRWMUTEX "Trace custom R/W Mutex (Debug builds only); redirecting std::out to a file is strongly recommended!" OFF)
@@ -292,6 +293,9 @@ find_package(JPEG REQUIRED)
 find_package(PNG REQUIRED)
 find_package(TIFF REQUIRED)
 find_package(ZLIB REQUIRED)
+if (WITH_SYSTEM_KLT)
+    find_package (KLT REQUIRED)
+endif()
 
 # Check for libcanberra-gtk3 (sound events on Linux):
 if(UNIX AND(NOT APPLE))

cmake/modules/FindKLT.cmake

@@ -0,0 +1,73 @@
+# - Try to find KLT
+# Once done this will define
+#
+#  KLT_FOUND - system has KLT
+#  KLT_INCLUDE_DIRS - the KLT include directory
+#  KLT_LIBRARIES - Link these to use KLT
+#  KLT_DEFINITIONS - Compiler switches required for using KLT
+#
+#  Copyright (c) 2009 Andreas Schneider <mail@cynapses.org>
+#  updated for KLT by Dan Horák
+#
+#  Redistribution and use is allowed according to the terms of the New
+#  BSD license.
+#  For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+#
+
+
+if (KLT_LIBRARIES AND KLT_INCLUDE_DIRS)
+  # in cache already
+  set(KLT_FOUND TRUE)
+else (KLT_LIBRARIES AND KLT_INCLUDE_DIRS)
+
+  find_path(KLT_INCLUDE_DIR
+    NAMES
+        klt.h
+    PATHS
+        /usr/include
+        /usr/local/include
+        /opt/local/include
+        /sw/include
+        ${CMAKE_INSTALL_PREFIX}/include
+    PATH_SUFFIXES
+        klt
+  )
+  mark_as_advanced(KLT_INCLUDE_DIR)
+
+  find_library(KLT_LIBRARY
+    NAMES
+        klt
+    PATHS
+        /usr/lib64
+        /usr/lib
+        /usr/local/lib
+        /opt/local/lib
+        /sw/lib
+        ${CMAKE_INSTALL_PREFIX}/lib
+  )
+  mark_as_advanced(KLT_LIBRARY)
+
+  set(KLT_INCLUDE_DIRS
+    ${KLT_INCLUDE_DIR}
+  )
+
+  set(KLT_LIBRARIES
+    ${KLT_LIBRARY}
+  )
+
+  if (KLT_INCLUDE_DIRS AND KLT_LIBRARIES)
+     set(KLT_FOUND TRUE)
+  endif (KLT_INCLUDE_DIRS AND KLT_LIBRARIES)
+
+  if (KLT_FOUND)
+    if (NOT KLT_FIND_QUIETLY)
+      message(STATUS "Found KLT: ${KLT_LIBRARIES}")
+    endif (NOT KLT_FIND_QUIETLY)
+  else (KLT_FOUND)
+      message(STATUS "KLT not found.")
+  endif (KLT_FOUND)
+
+  mark_as_advanced(KLT_INCLUDE_DIRS KLT_LIBRARIES)
+
+endif (KLT_LIBRARIES AND KLT_INCLUDE_DIRS)
+

rtengine/CMakeLists.txt

@@ -111,6 +111,14 @@ set(RTENGINESOURCEFILES
     utils.cc
     )
 
+if (NOT WITH_SYSTEM_KLT)
+    set (RTENGINESOURCEFILES ${RTENGINESOURCEFILES}
+	klt/convolve.cc klt/error.cc klt/klt.cc klt/klt_util.cc klt/pnmio.cc klt/pyramid.cc klt/selectGoodFeatures.cc
+	klt/storeFeatures.cc klt/trackFeatures.cc klt/writeFeatures.cc
+    )
+    set (KLT_LIBRARIES)
+endif ()
+
 include_directories(BEFORE "${CMAKE_CURRENT_BINARY_DIR}")
 
 add_library(rtengine ${RTENGINESOURCEFILES})