generic-library/opencv
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

#1349 tbb::mutex is moved to outer scope to be sure that its initialization is completed before the parallel loop

Browse Source
This commit is contained in:
Andrey Kamaev 2012-03-29 11:17:35 +00:00
parent 4eda1662aa
commit 8f970caa56
1 changed files with 19 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
modules/nonfree/src/surf.cpp
View File

@ -257,6 +257,10 @@ interpolateKeypoint( float N9[3][9], int dx, int dy, int ds, KeyPoint& kpt )
return ok;
}
#ifdef HAVE_TBB
static tbb::mutex findMaximaInLayer_m;
#endif
/*
* Find the maxima in the determinant of the Hessian in a layer of the
* scale-space pyramid
@ -352,10 +356,9 @@ findMaximaInLayer( const Mat& sum, const Mat& mask_sum,
if( interp_ok )
{
/*printf( "KeyPoint %f %f %d\n", point.pt.x, point.pt.y, point.size );*/
#ifdef HAVE_TBB
static tbb::mutex m;
tbb::mutex::scoped_lock lock(m);
#endif
#ifdef HAVE_TBB
tbb::mutex::scoped_lock lock(findMaximaInLayer_m);
#endif
keypoints.push_back(kpt);
}
}
@ -411,6 +414,11 @@ struct SURFFindInvoker
keypoints = &_keypoints;
nOctaveLayers = _nOctaveLayers;
hessianThreshold = _hessianThreshold;
#ifdef HAVE_TBB
//touch the mutex to ensure that it's initialization is finished
CV_Assert(&findMaximaInLayer_m > 0);
#endif
}
void operator()(const BlockedRange& range) const