GPUTPCCFChargeMapFiller.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 O2_GPU_CHARGE_MAP_FILLER_H
#define O2_GPU_CHARGE_MAP_FILLER_H
 
#include "clusterFinderDefs.h"
#include "GPUGeneralKernels.h"
#include "GPUConstantMem.h"
#include "GPUTPCClusterFinder.h"
#include "Array2D.h"
#include "PackedCharge.h"
 
namespace o2::tpc
{
class Digit;
} // namespace o2::tpc
 
namespace o2::gpu
{
 
struct ChargePos;
 
class GPUTPCCFChargeMapFiller : public GPUKernelTemplate
{
 public:
  enum K : int32_t {
    fillIndexMap,
    fillFromDigits,
    findFragmentStart,
  };
 
  typedef GPUTPCClusterFinder processorType;
  GPUhdi() static processorType* Processor(GPUConstantMem& processors)
  {
    return processors.tpcClusterer;
  }
 
  GPUhdi() constexpr static GPUDataTypes::RecoStep GetRecoStep()
  {
    return GPUDataTypes::RecoStep::TPCClusterFinding;
  }
 
  template <int32_t iKernel = defaultKernel, typename... Args>
  GPUd() static void Thread(int32_t nBlocks, int32_t nThreads, int32_t iBlock, int32_t iThread, GPUSharedMemory& smem, processorType& clusterer, Args... args);
 
  static GPUd() void fillIndexMapImpl(int32_t, int32_t, int32_t, int32_t, const CfFragment&, const tpc::Digit*, Array2D<uint32_t>&, size_t);
 
  static GPUd() void fillFromDigitsImpl(int32_t, int32_t, int32_t, int32_t, processorType&, const CfFragment&, size_t, const tpc::Digit*, ChargePos*, Array2D<PackedCharge>&);
 
 private:
  static GPUd() size_t findTransition(int32_t, const tpc::Digit*, size_t, size_t);
};
 
} // namespace o2::gpu
 
#endif