GPUTPCGMPolynomialFieldManager.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
 
#ifndef GPUTPCGMPOLYNOMIALFIELDMANAGER_H
#define GPUTPCGMPOLYNOMIALFIELDMANAGER_H
 
#include "GPUCommonDef.h"
class AliMagF;
 
namespace o2::gpu
{
class GPUTPCGMPolynomialField;
} // namespace o2::gpu
 
class GPUTPCGMPolynomialFieldManager
{
 public:
  enum StoredField_t { kUnknown,
                       kUniform,
                       k2kG,
                       k5kG }; // known fitted polynomial fields, stored in constants
 
  GPUTPCGMPolynomialFieldManager() = default;
 
  /* Get appropriate pre-calculated polynomial field for the given field value nominalFieldkG
 */
  static int32_t GetPolynomialField(float nominalFieldkG, o2::gpu::GPUTPCGMPolynomialField& field);
 
  /* Get pre-calculated polynomial field of type "type", scaled with respect to nominalFieldkG
 */
  static int32_t GetPolynomialField(StoredField_t type, float nominalFieldkG, o2::gpu::GPUTPCGMPolynomialField& field);
};
 
#endif