added support for Ximea cameras (patch by Marian Zajko), fixed GCC warnings in MOG2 background subtractor.

OpenCVFindXimea.cmake

@@ -0,0 +1,35 @@
+# - Find XIMEA
+# This module finds if XIMEA Software package is installed
+# and determines where the binaries and header files are.
+# This code sets the following variables:
+#  
+#  XIMEA_FOUND          - True if XIMEA API found
+#  XIMEA_PATH:          - Path to the XIMEA API folder
+#  XIMEA_LIBRARY_DIRS   - XIMEA libraries folder
+#
+# Created: 5 Aug 2011 by Marian Zajko (marian.zajko@ximea.com)
+#
+
+set(XIMEA_FOUND)
+set(XIMEA_PATH)
+set(XIMEA_LIBRARY_DIR)
+
+# Try to find the XIMEA API path in registry.
+GET_FILENAME_COMPONENT(XIMEA_PATH "[HKEY_CURRENT_USER\\Software\\XIMEA\\CamSupport\\API;Path]" ABSOLUTE)                                                
+
+if(XIMEA_PATH)
+  set(XIMEA_FOUND 1)
+  
+  # set LIB folders
+  set(XIMEA_LIBRARY_DIR "${XIMEA_PATH}\\x86")
+  
+else()
+  set(XIMEA_FOUND 0)
+endif()                                            
+
+mark_as_advanced(FORCE XIMEA_FOUND)
+mark_as_advanced(FORCE XIMEA_PATH)
+mark_as_advanced(FORCE XIMEA_LIBRARY_DIR)
+  
+   
+