opencv/modules/gpu/src/initialization.cpp
2010-09-17 17:18:41 +00:00

111 lines
4.0 KiB
C++

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#include "precomp.hpp"
using namespace cv;
using namespace cv::gpu;
#if !defined (HAVE_CUDA)
CV_EXPORTS int cv::gpu::getCudaEnabledDeviceCount() { return 0; }
CV_EXPORTS string cv::gpu::getDeviceName(int /*device*/) { throw_nogpu(); return 0; }
CV_EXPORTS void cv::gpu::setDevice(int /*device*/) { throw_nogpu(); }
CV_EXPORTS int cv::gpu::getDevice() { throw_nogpu(); return 0; }
CV_EXPORTS void cv::gpu::getComputeCapability(int /*device*/, int& /*major*/, int& /*minor*/) { throw_nogpu(); }
CV_EXPORTS int cv::gpu::getNumberOfSMs(int /*device*/) { throw_nogpu(); return 0; }
CV_EXPORTS void cv::gpu::getGpuMemInfo(size_t& /*free*/, size_t& /*total*/) { throw_nogpu(); }
#else /* !defined (HAVE_CUDA) */
CV_EXPORTS int cv::gpu::getCudaEnabledDeviceCount()
{
int count;
cudaSafeCall( cudaGetDeviceCount( &count ) );
return count;
}
CV_EXPORTS string cv::gpu::getDeviceName(int device)
{
cudaDeviceProp prop;
cudaSafeCall( cudaGetDeviceProperties( &prop, device) );
return prop.name;
}
CV_EXPORTS void cv::gpu::setDevice(int device)
{
cudaSafeCall( cudaSetDevice( device ) );
}
CV_EXPORTS int cv::gpu::getDevice()
{
int device;
cudaSafeCall( cudaGetDevice( &device ) );
return device;
}
CV_EXPORTS void cv::gpu::getComputeCapability(int device, int& major, int& minor)
{
cudaDeviceProp prop;
cudaSafeCall( cudaGetDeviceProperties( &prop, device) );
major = prop.major;
minor = prop.minor;
}
CV_EXPORTS int cv::gpu::getNumberOfSMs(int device)
{
cudaDeviceProp prop;
cudaSafeCall( cudaGetDeviceProperties( &prop, device ) );
return prop.multiProcessorCount;
}
CV_EXPORTS void cv::gpu::getGpuMemInfo(size_t& free, size_t& total)
{
cudaSafeCall( cudaMemGetInfo( &free, &total ) );
}
#endif