created GPU new-style test project, ported StereoBP test

modules/gpu/test/test_precomp.hpp

@@ -0,0 +1,31 @@
+#ifndef __OPENCV_TEST_PRECOMP_HPP__
+#define __OPENCV_TEST_PRECOMP_HPP__
+
+#include "opencv2/ts/ts.hpp"
+#include "opencv2/gpu/gpu.hpp"
+#include "opencv2/highgui/highgui.hpp"
+
+static inline bool check_and_treat_gpu_exception(const cv::Exception& e, cvtest::TS* ts)
+{
+    switch (e.code)
+    {
+    case CV_GpuNotSupported: 
+        ts->printf(cvtest::TS::LOG, "\nGpu not supported by the library"); 
+        break;
+
+    case CV_GpuApiCallError: 
+        ts->printf(cvtest::TS::LOG, "\nGPU Error: %s", e.what());
+        break;
+
+    case CV_GpuNppCallError: 
+        ts->printf(cvtest::TS::LOG, "\nNPP Error: %s", e.what());
+        break;
+
+    default:
+        return false;
+    }
+    ts->set_failed_test_info(cvtest::TS::FAIL_GENERIC);                        
+    return true;
+}
+
+#endif