Allow OpenCL acceleration in every OpenCV module

cmake/cl2cpp.cmake

@@ -0,0 +1,34 @@
+file(GLOB cl_list "${CL_DIR}/*.cl" )
+
+file(WRITE ${OUTPUT} "// This file is auto-generated. Do not edit!
+
+namespace cv
+{
+namespace ocl
+{
+")
+
+foreach(cl ${cl_list})
+  get_filename_component(cl_filename "${cl}" NAME_WE)
+  #message("${cl_filename}")
+
+  file(READ "${cl}" lines)
+
+  string(REPLACE "\r" "" lines "${lines}\n")
+  string(REPLACE "\t" "  " lines "${lines}")
+
+  string(REGEX REPLACE "/\\*([^*]/|\\*[^/]|[^*/])*\\*/" ""   lines "${lines}") # multiline comments
+  string(REGEX REPLACE "[ ]*//[^\n]*\n"                 "\n" lines "${lines}") # single-line comments
+  string(REGEX REPLACE "\n[ ]*(\n[ ]*)*"                "\n" lines "${lines}") # empty lines & leading whitespace
+  string(REGEX REPLACE "^\n"                            ""   lines "${lines}") # leading new line
+
+  string(REPLACE "\\" "\\\\" lines "${lines}")
+  string(REPLACE "\"" "\\\"" lines "${lines}")
+  string(REPLACE "\n" "\\n\"\n\"" lines "${lines}")
+
+  string(REGEX REPLACE "\"$" "" lines "${lines}") # unneeded " at the eof
+
+  file(APPEND ${OUTPUT} "const char* ${cl_filename}=\"${lines};\n")
+endforeach()
+
+file(APPEND ${OUTPUT} "}\n}\n")