CL_MEM_HOST_READ_ONLY  350 3rdparty/include/opencl/1.2/CL/cl.h #define CL_MEM_HOST_READ_ONLY                       (1 << 8)
CL_MEM_HOST_READ_ONLY  502 modules/core/src/ocl.cpp #define CL_MEM_HOST_READ_ONLY                       (1 << 8)