| 346 | } |
| 347 | |
| 348 | void RowArray::DecodeOffsets(ResizableArrayData* output, int output_start_row, |
| 349 | int column_id, int num_rows_to_append, |
| 350 | const uint32_t* row_ids) const { |
| 351 | uint32_t* offsets = output->mutable_data_as<uint32_t>(1) + output_start_row; |
| 352 | uint32_t sum = (output_start_row == 0) ? 0 : offsets[0]; |
| 353 | RowArrayAccessor::Visit( |
| 354 | rows_, column_id, num_rows_to_append, row_ids, |
| 355 | [&](int i, const uint8_t* ptr, uint32_t num_bytes) { offsets[i] = num_bytes; }); |
| 356 | for (int i = 0; i < num_rows_to_append; ++i) { |
| 357 | uint32_t length = offsets[i]; |
| 358 | offsets[i] = sum; |
| 359 | sum += length; |
| 360 | } |
| 361 | offsets[num_rows_to_append] = sum; |
| 362 | } |
| 363 | |
| 364 | void RowArray::DecodeVarLength(ResizableArrayData* output, int output_start_row, |
| 365 | int column_id, int num_rows_to_append, |