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modified default stream initialization to allow concurrent calls modified cuda surf.cuda.cpp to allow concurrent call

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This commit is contained in:
Ernest Galbrun
2014-07-23 14:16:53 +02:00
parent 964b260937
commit 6a769c92b3
3 changed files with 45 additions and 10 deletions
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modules/core/src/cuda_stream.cpp
+14 -2
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@@ -190,10 +190,22 @@ void cv::cuda::Stream::enqueueHostCallback(StreamCallback callback, void* userDa
#endif
}
namespace
{
bool default_stream_is_initialized;
Mutex mtx;
Ptr<Stream> default_stream;
}
Stream& cv::cuda::Stream::Null()
{
static Stream s(Ptr<Impl>(new Impl(0)));
return s;
AutoLock lock(mtx);
if (!default_stream_is_initialized)
{
default_stream = Ptr<Stream>(new Stream(Ptr<Impl>(new Impl(0))));
default_stream_is_initialized = true;
}
return *default_stream;
}
cv::cuda::Stream::operator bool_type() const