Fix brute_force_matcher's hung on some Intel CPU OCL

modules/ocl/src/brute_force_matcher.cpp

@@ -245,11 +245,12 @@ static void matchDispatcher(const oclMat &query, const oclMat &train, const oclM
 {
     const oclMat zeroMask;
     const oclMat &tempMask = mask.data ? mask : zeroMask;
+    bool is_cpu = queryDeviceInfo<IS_CPU_DEVICE, bool>();
     if (query.cols <= 64)
     {
         matchUnrolledCached<16, 64>(query, train, tempMask, trainIdx, distance, distType);
     }
-    else if (query.cols <= 128)
+    else if (query.cols <= 128 && !is_cpu)
     {
         matchUnrolledCached<16, 128>(query, train, tempMask, trainIdx,  distance, distType);
     }
@@ -264,11 +265,12 @@ static void matchDispatcher(const oclMat &query, const oclMat *trains, int n, co
 {
     const oclMat zeroMask;
     const oclMat &tempMask = mask.data ? mask : zeroMask;
+    bool is_cpu = queryDeviceInfo<IS_CPU_DEVICE, bool>();
     if (query.cols <= 64)
     {
         matchUnrolledCached<16, 64>(query, trains, n, tempMask, trainIdx, imgIdx, distance, distType);
     }
-    else if (query.cols <= 128)
+    else if (query.cols <= 128 && !is_cpu)
     {
         matchUnrolledCached<16, 128>(query, trains, n, tempMask, trainIdx, imgIdx, distance, distType);
     }
@@ -284,11 +286,12 @@ static void matchDispatcher(const oclMat &query, const oclMat &train, float maxD
 {
     const oclMat zeroMask;
     const oclMat &tempMask = mask.data ? mask : zeroMask;
+    bool is_cpu = queryDeviceInfo<IS_CPU_DEVICE, bool>();
     if (query.cols <= 64)
     {
         matchUnrolledCached<16, 64>(query, train, maxDistance, tempMask, trainIdx, distance, nMatches, distType);
     }
-    else if (query.cols <= 128)
+    else if (query.cols <= 128 && !is_cpu)
     {
         matchUnrolledCached<16, 128>(query, train, maxDistance, tempMask, trainIdx, distance, nMatches, distType);
     }
@@ -466,11 +469,12 @@ static void calcDistanceDispatcher(const oclMat &query, const oclMat &train, con
 static void match2Dispatcher(const oclMat &query, const oclMat &train, const oclMat &mask,
                       const oclMat &trainIdx, const oclMat &distance, int distType)
 {
+    bool is_cpu = queryDeviceInfo<IS_CPU_DEVICE, bool>();
     if (query.cols <= 64)
     {
         knn_matchUnrolledCached<16, 64>(query, train, mask, trainIdx, distance, distType);
     }
-    else if (query.cols <= 128)
+    else if (query.cols <= 128 && !is_cpu)
     {
         knn_matchUnrolledCached<16, 128>(query, train, mask, trainIdx, distance, distType);
     }