attempt screw recognition

opencv-apps/version/CMakeLists.txt

@@ -0,0 +1,5 @@
+ocv_add_application(opencv_version MODULES opencv_core SRCS opencv_version.cpp)
+if(WIN32)
+  ocv_add_application(opencv_version_win32 MODULES opencv_core SRCS opencv_version.cpp)
+  target_compile_definitions(opencv_version_win32 PRIVATE "OPENCV_WIN32_API=1")
+endif()

opencv-apps/version/opencv_version.cpp

@@ -0,0 +1,84 @@
+// This file is part of OpenCV project.
+// It is subject to the license terms in the LICENSE file found in the top-level directory
+// of this distribution and at http://opencv.org/license.html.
+
+#include <iostream>
+
+#include <opencv2/core.hpp>
+#include <opencv2/core/utils/trace.hpp>
+
+#include <opencv2/core/opencl/opencl_info.hpp>
+
+#ifdef OPENCV_WIN32_API
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#endif
+
+static void dumpHWFeatures(bool showAll = false)
+{
+    std::cout << "OpenCV's HW features list:" << std::endl;
+    int count = 0;
+    for (int i = 0; i < CV_HARDWARE_MAX_FEATURE; i++)
+    {
+        cv::String name = cv::getHardwareFeatureName(i);
+        if (name.empty())
+            continue;
+        bool enabled = cv::checkHardwareSupport(i);
+        if (enabled)
+            count++;
+        if (enabled || showAll)
+        {
+            printf("    ID=%3d (%s) -> %s\n", i, name.c_str(), enabled ? "ON" : "N/A");
+        }
+    }
+    std::cout << "Total available: " << count << std::endl;
+}
+
+int main(int argc, const char** argv)
+{
+    CV_TRACE_FUNCTION();
+    CV_TRACE_ARG(argc);
+    CV_TRACE_ARG_VALUE(argv0, "argv0", argv[0]);
+    CV_TRACE_ARG_VALUE(argv1, "argv1", argv[1]);
+
+#ifndef OPENCV_WIN32_API
+    cv::CommandLineParser parser(argc, argv,
+        "{ help h usage ? |      | show this help message }"
+        "{ verbose v      |      | show build configuration log }"
+        "{ opencl         |      | show information about OpenCL (available platforms/devices, default selected device) }"
+        "{ hw             |      | show detected HW features (see cv::checkHardwareSupport() function). Use --hw=0 to show available features only }"
+    );
+
+    if (parser.has("help"))
+    {
+        parser.printMessage();
+        return 0;
+    }
+
+    if (parser.has("verbose"))
+    {
+        std::cout << cv::getBuildInformation().c_str() << std::endl;
+    }
+    else
+    {
+        std::cout << CV_VERSION << std::endl;
+    }
+
+    if (parser.has("opencl"))
+    {
+        cv::dumpOpenCLInformation();
+    }
+
+    if (parser.has("hw"))
+    {
+        dumpHWFeatures(parser.get<bool>("hw"));
+    }
+#else
+    std::cout << cv::getBuildInformation().c_str() << std::endl;
+    cv::dumpOpenCLInformation();
+    dumpHWFeatures();
+    MessageBoxA(NULL, "Check console window output", "OpenCV(" CV_VERSION ")", MB_ICONINFORMATION | MB_OK);
+#endif
+
+    return 0;
+}