Increments the sampler reference count.
cl_int clRetainSampler(cl_sampler sampler)
clCreateSamplerWithProperties performs an implicit retain.
CL_SUCCESS if the function is executed successfully.
Otherwise, it returns one of the following errors:
sampleris not a valid sampler object.
CL_OUT_OF_RESOURCESif there is a failure to allocate resources required by the OpenCL implementation on the device.
CL_OUT_OF_HOST_MEMORYif there is a failure to allocate resources required by the OpenCL implementation on the host.