remove redundant OPENCL_DIR flag

remove as much warnings as possible
use enum instead of MACRO for ocl.hpp
add command line parser in accuracy test and perf test
some bug fix for arthim functions

modules/ocl/perf/perf_haar.cpp

@@ -52,7 +52,7 @@ using namespace cvtest;
 using namespace testing;
 using namespace std;
 using namespace cv;
-
+extern std::string workdir;
 struct getRect
 {
     Rect operator ()(const CvAvgComp &e) const
@@ -80,9 +80,6 @@ PARAM_TEST_CASE(HaarTestBase, int, int)
         if( (!cascade.load( cascadeName )) || (!cpucascade.load(cascadeName)))
         {
             cout << "ERROR: Could not load classifier cascade" << endl;
-            cout << "Usage: facedetect [--cascade=<cascade_path>]\n"
-                 "   [--scale[=<image scale>\n"
-                 "   [filename|camera_index]\n" << endl ;
             return;
         }
         //int devnums = getDevice(oclinfo);
@@ -99,16 +96,16 @@ struct Haar : HaarTestBase {};
 
 TEST_F(Haar, FaceDetect)
 {
-    string imgName = "../../../samples/c/lena.jpg";
+    string imgName = workdir + "lena.jpg";
     Mat img = imread( imgName, 1 );
 
     if(img.empty())
     {
-        std::cout << "Couldn't read test" << index << ".jpg" << std::endl;
+        std::cout << imgName << std::endl;
         return ;
     }
 
-    int i = 0;
+    //int i = 0;
     double t = 0;
     vector<Rect> faces, oclfaces;