/*  This file is part of YUView - The YUV player with advanced analytics toolset
 *   <https://github.com/IENT/YUView>
 *   Copyright (C) 2015  Institut f�r Nachrichtentechnik, RWTH Aachen University, GERMANY
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   In addition, as a special exception, the copyright holders give
 *   permission to link the code of portions of this program with the
 *   OpenSSL library under certain conditions as described in each
 *   individual source file, and distribute linked combinations including
 *   the two.
 *
 *   You must obey the GNU General Public License in all respects for all
 *   of the code used other than OpenSSL. If you modify file(s) with this
 *   exception, you may extend this exception to your version of the
 *   file(s), but you are not obligated to do so. If you do not wish to do
 *   so, delete this exception statement from your version. If you delete
 *   this exception statement from all source files in the program, then
 *   also delete it here.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#include "lmcs_data.h"

#include "adaptation_parameter_set_rbsp.h"
#include <parser/common/Functions.h>

namespace parser::vvc
{

using namespace parser::reader;

void lmcs_data::parse(SubByteReaderLogging &reader, adaptation_parameter_set_rbsp *aps)
{
  SubByteReaderLoggingSubLevel subLevel(reader, "lmcs_data");

  this->lmcs_min_bin_idx = reader.readUEV("lmcs_min_bin_idx", Options().withCheckRange({0, 15}));
  this->lmcs_delta_max_bin_idx =
      reader.readUEV("lmcs_delta_max_bin_idx", Options().withCheckRange({0, 15}));
  this->LmcsMaxBinIdx = 15 - lmcs_delta_max_bin_idx;
  this->lmcs_delta_cw_prec_minus1 =
      reader.readUEV("lmcs_delta_cw_prec_minus1", Options().withCheckRange({0, 14}));
  for (unsigned i = lmcs_min_bin_idx; i <= this->LmcsMaxBinIdx; i++)
  {
    auto nrBits                = this->lmcs_delta_cw_prec_minus1 + 1;
    this->lmcs_delta_abs_cw[i] = reader.readBits(formatArray("lmcs_delta_abs_cw", i), nrBits);
    if (this->lmcs_delta_abs_cw[i] > 0)
    {
      this->lmcs_delta_sign_cw_flag[i] = reader.readFlag(formatArray("lmcs_delta_sign_cw_flag", i));
    }
  }
  if (aps->aps_chroma_present_flag)
  {
    this->lmcs_delta_abs_crs = reader.readBits("lmcs_delta_abs_crs", 3);
    if (this->lmcs_delta_abs_crs > 0)
    {
      this->lmcs_delta_sign_crs_flag = reader.readFlag("lmcs_delta_sign_crs_flag");
    }
  }
}

} // namespace parser::vvc
