f4334277
 Hu Chunming
提交3rdparty
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// 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.
// Copyright (C) 2016, Intel Corporation, all rights reserved.
// Third party copyrights are property of their respective owners.
// OpenVX related functions
#include "precomp.hpp"
#include "opencv2/core/utils/tls.hpp"
#include "opencv2/core/ovx.hpp"
#include "opencv2/core/openvx/ovx_defs.hpp"
namespace cv
{
namespace ovx
{
#ifdef HAVE_OPENVX
// Simple TLSData<ivx::Context> doesn't work, because default constructor doesn't create any OpenVX context.
struct OpenVXTLSData
{
OpenVXTLSData() : ctx(ivx::Context::create()) {}
ivx::Context ctx;
};
static TLSData<OpenVXTLSData>& getOpenVXTLSData()
{
CV_SINGLETON_LAZY_INIT_REF(TLSData<OpenVXTLSData>, new TLSData<OpenVXTLSData>())
}
struct OpenVXCleanupFunctor
{
~OpenVXCleanupFunctor() { getOpenVXTLSData().cleanup(); }
};
static OpenVXCleanupFunctor g_openvx_cleanup_functor;
ivx::Context& getOpenVXContext()
{
return getOpenVXTLSData().get()->ctx;
}
#endif
} // namespace
bool haveOpenVX()
{
#ifdef HAVE_OPENVX
static int g_haveOpenVX = -1;
if(g_haveOpenVX < 0)
{
try
{
ivx::Context context = ovx::getOpenVXContext();
vx_uint16 vComp = ivx::compiledWithVersion();
vx_uint16 vCurr = context.version();
g_haveOpenVX =
VX_VERSION_MAJOR(vComp) == VX_VERSION_MAJOR(vCurr) &&
VX_VERSION_MINOR(vComp) == VX_VERSION_MINOR(vCurr)
? 1 : 0;
}
catch(const ivx::WrapperError&)
{ g_haveOpenVX = 0; }
catch(const ivx::RuntimeError&)
{ g_haveOpenVX = 0; }
}
return g_haveOpenVX == 1;
#else
return false;
#endif
}
bool useOpenVX()
{
#ifdef HAVE_OPENVX
CoreTLSData& data = getCoreTlsData();
if (data.useOpenVX < 0)
{
// enabled (if available) by default
data.useOpenVX = haveOpenVX() ? 1 : 0;
}
return data.useOpenVX > 0;
#else
return false;
#endif
}
void setUseOpenVX(bool flag)
{
#ifdef HAVE_OPENVX
if( haveOpenVX() )
{
CoreTLSData& data = getCoreTlsData();
data.useOpenVX = flag ? 1 : 0;
}
#else
CV_Assert(!flag && "OpenVX support isn't enabled at compile time");
#endif
}
} // namespace cv
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