CL_FP_ROUND_TO_NEAREST  287 3rdparty/include/opencl/1.2/CL/cl.h #define CL_FP_ROUND_TO_NEAREST                      (1 << 2)
CL_FP_ROUND_TO_NEAREST  456 modules/core/src/ocl.cpp #define CL_FP_ROUND_TO_NEAREST                      (1 << 2)