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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#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(); }
CV_EXPORTS bool cv::gpu::hasNativeDoubleSupport(int /*device*/) { throw_nogpu(); return false; }
CV_EXPORTS bool cv::gpu::hasAtomicsSupport(int /*device*/) { throw_nogpu(); return false; }
#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 ) );
}
CV_EXPORTS bool cv::gpu::hasNativeDoubleSupport(int device)
{
int major, minor;
getComputeCapability(device, major, minor);
return major > 1 || (major == 1 && minor >= 3);
}
CV_EXPORTS bool cv::gpu::hasAtomicsSupport(int device)
{
int major, minor;
getComputeCapability(device, major, minor);
return major > 1 || (major == 1 && minor >= 1);
}
#endif