HGCalWaferIndex.cc

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#include "Geometry/HGCalCommonData/interface/HGCalWaferIndex.h"

const int kHGCalWaferUOffset     = 0;
const int kHGCalWaferUMask       = 0x1F;
const int kHGCalWaferUSignOffset = 5;
const int kHGCalWaferUSignMask   = 0x1;
const int kHGCalWaferVOffset     = 6;
const int kHGCalWaferVMask       = 0x1F;
const int kHGCalWaferVSignOffset = 11;
const int kHGCalWaferVSignMask   = 0x1;
const int kHGCalLayerOffset      = 12;
const int kHGCalLayerMask        = 0x1F;

int32_t HGCalWaferIndex::waferIndex(int32_t layer, int32_t waferU, 
                    int32_t waferV) {
  int waferUabs(std::abs(waferU)), waferVabs(std::abs(waferV));
  int waferUsign = (waferU >= 0) ? 0 : 1;
  int waferVsign = (waferV >= 0) ? 0 : 1;
  int32_t id(0);
  id |= (((waferUabs & kHGCalWaferUMask) << kHGCalWaferUOffset) |
     ((waferUsign& kHGCalWaferUSignMask) << kHGCalWaferUSignOffset) |
     ((waferVabs & kHGCalWaferVMask) << kHGCalWaferVOffset) |
     ((waferVsign& kHGCalWaferVSignMask) << kHGCalWaferVSignOffset) |
     ((layer     & kHGCalLayerMask) << kHGCalLayerOffset));
  return id;
}

int HGCalWaferIndex::waferLayer(const int32_t id) {
  return (id>>kHGCalLayerOffset)&kHGCalLayerMask; 
}

int HGCalWaferIndex::waferU(const int32_t id) {
  int32_t iu = (id>>kHGCalWaferUOffset)&kHGCalWaferUMask;
  return (((id>>kHGCalWaferUSignOffset) & kHGCalWaferUSignMask) ? -iu : iu);
}

int HGCalWaferIndex::waferV(const int32_t id) {
  int32_t iv = (id>>kHGCalWaferVOffset)&kHGCalWaferVMask;
  return (((id>>kHGCalWaferVSignOffset) & kHGCalWaferVSignMask) ? -iv : iv);
}