Function CalcIndex

qrenderdoc/Windows/BufferViewer.cpp:777–805

};

uint32_t CalcIndex(BufferData *data, uint32_t vertID, int32_t baseVertex, uint32_t primRestart)
{
  const byte *idxData = data->data() + vertID * sizeof(uint32_t);
  if(idxData + sizeof(uint32_t) > data->end())
    return ~0U;

  uint32_t idx = *(const uint32_t *)idxData;

  // check for primitive restart *before* adding base vertex
  if(primRestart && idx == primRestart)
    return idx;

  // apply base vertex but clamp to 0 if subtracting
  if(baseVertex < 0)
  {
    uint32_t subtract = (uint32_t)(-baseVertex);

    if(idx < subtract)
      idx = 0;
    else
      idx -= subtract;
  }
  else if(baseVertex > 0)
  {
    idx += (uint32_t)baseVertex;
  }

  return idx;
}

static int columnGroupRole = Qt::UserRole + 10000;