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//                For Open Source Computer Vision Library
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#include "test_precomp.hpp"

#ifdef HAVE_CUDA
#include <cuda_runtime_api.h>

void print_info()
{    
#if defined _WIN32
#   if defined _WIN64
        puts("OS: Windows 64\n");
#   else
        puts("OS: Windows 32\n");
#   endif
#elif defined linux
#   if defined _LP64
        puts("OS: Linux 64\n");
#   else
        puts("OS: Linux 32\n");
#   endif
#elif defined __APPLE__
#   if defined _LP64
        puts("OS: Apple 64\n");
#   else
        puts("OS: Apple 32\n");
#   endif
#endif

    printf("CUDA version: %d\n\n", CUDART_VERSION);

    int deviceCount = cv::gpu::getCudaEnabledDeviceCount();


    printf("Found %d CUDA devices\n\n", deviceCount);

    for (int i = 0; i < deviceCount; ++i)
    {
        cv::gpu::DeviceInfo info(i);
        printf("Device %d:\n", i);
        printf("\tName: %s\n", info.name().c_str());
        printf("\tCompute capability version: %d.%d\n", info.majorVersion(), info.minorVersion());
        printf("\tTotal memory: %d Mb\n", static_cast<int>(static_cast<int>(info.totalMemory() / 1024.0) / 1024.0));
        printf("\tFree memory: %d Mb\n", static_cast<int>(static_cast<int>(info.freeMemory() / 1024.0) / 1024.0));
        if (info.isCompatible())
            puts("\tThis device is compatible with current GPU module build\n");
        else
            puts("\tThis device is NOT compatible with current GPU module build\n");
    }
    
    puts("GPU module was compiled for next GPU archs:");
    printf("\tBIN:%s\n", CUDA_ARCH_BIN);
    printf("\tPTX:%s\n\n", CUDA_ARCH_PTX);
}

enum OutputLevel
{
    OutputLevelNone,
    OutputLevelCompact,
    OutputLevelFull
};

extern OutputLevel nvidiaTestOutputLevel;

int main(int argc, char** argv)
{
    cvtest::TS::ptr()->init("gpu");
    testing::InitGoogleTest(&argc, argv);

    cv::CommandLineParser parser(argc, (const char**)argv);

    std::string outputLevel = parser.get<std::string>("nvtest_output_level", "none");

    if (outputLevel == "none")
        nvidiaTestOutputLevel = OutputLevelNone;
    else if (outputLevel == "compact")
        nvidiaTestOutputLevel = OutputLevelCompact;
    else if (outputLevel == "full")
        nvidiaTestOutputLevel = OutputLevelFull;

    print_info();
    return RUN_ALL_TESTS();
}

#else // HAVE_CUDA

int main(int argc, char** argv)
{
    printf("OpenCV was built without CUDA support\n");
    return 0;
}

#endif // HAVE_CUDA