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intel device guard was added because of perf degradation on some non intel platform.

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krodyush 2013-12-18 14:27:51 +04:00
parent 34c630faf4
commit 1ae71fe205
1 changed files with 3 additions and 1 deletions
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4
modules/ocl/src/filtering.cpp
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@ -1405,11 +1405,13 @@ Ptr<FilterEngine_GPU> cv::ocl::createSeparableLinearFilter_GPU(int srcType, int
int cn = CV_MAT_CN(srcType);
int bdepth = std::max(std::max(sdepth, ddepth), CV_32F);
int bufType = CV_MAKETYPE(bdepth, cn);
Context* clCxt = Context::getContext();
//if image size is non-degenerate and large enough
//and if filter support is reasonable to satisfy larger local memory requirements,
//then we can use single pass routine to avoid extra runtime calls overhead
if( rowKernel.rows <= 21 && columnKernel.rows <= 21 &&
if( clCxt && clCxt->supportsFeature(FEATURE_CL_INTEL_DEVICE) &&
rowKernel.rows <= 21 && columnKernel.rows <= 21 &&
(rowKernel.rows & 1) == 1 && (columnKernel.rows & 1) == 1 &&
imgSize.width > optimizedSepFilterLocalSize + (rowKernel.rows>>1) &&
imgSize.height > optimizedSepFilterLocalSize + (columnKernel.rows>>1) )