c++/src/BpackingDefault.hh

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef ORC_BPACKINGDEFAULT_HH
#define ORC_BPACKINGDEFAULT_HH

#include <cstdint>
#include <cstdlib>

#include "Bpacking.hh"

namespace orc {
  class RleDecoderV2;

  class UnpackDefault {
   public:
    UnpackDefault(RleDecoderV2* dec);
    ~UnpackDefault();

    void unrolledUnpack4(int64_t* data, uint64_t offset, uint64_t len);
    void unrolledUnpack8(int64_t* data, uint64_t offset, uint64_t len);
    void unrolledUnpack16(int64_t* data, uint64_t offset, uint64_t len);
    void unrolledUnpack24(int64_t* data, uint64_t offset, uint64_t len);
    void unrolledUnpack32(int64_t* data, uint64_t offset, uint64_t len);
    void unrolledUnpack40(int64_t* data, uint64_t offset, uint64_t len);
    void unrolledUnpack48(int64_t* data, uint64_t offset, uint64_t len);
    void unrolledUnpack56(int64_t* data, uint64_t offset, uint64_t len);
    void unrolledUnpack64(int64_t* data, uint64_t offset, uint64_t len);

    void plainUnpackLongs(int64_t* data, uint64_t offset, uint64_t len, uint64_t fbs);

   private:
    RleDecoderV2* decoder_;
  };

  class BitUnpackDefault : public BitUnpack {
   public:
    static void readLongs(RleDecoderV2* decoder, int64_t* data, uint64_t offset, uint64_t len,
                          uint64_t fbs);
  };

}  // namespace orc

#endif