Subband.h

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/*
 *    Copyright (C) 2016-2026 Grok Image Compression Inc.
 *
 *    This source code is free software: you can redistribute it and/or  modify
 *    it under the terms of the GNU Affero General Public License, version 3,
 *    as published by the Free Software Foundation.
 *
 *    This source code 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 Affero General Public License for more details.
 *
 *    You should have received a copy of the GNU Affero General Public License
 *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 
#pragma once
 
#include <unordered_map>
 
namespace grk
{

struct Subband : public Rect32
{
  Subband() = default;

  Subband(const Subband& rhs);

  virtual ~Subband() = default;

  Subband& operator=(const Subband& rhs);
 
  void print() const override;

  bool empty();

  Precinct* tryGetPrecinct(uint64_t precinctIndex);

  Rect32_16 generateBandPrecinctBounds(uint64_t precinctIndex, Rect32 bandPrecinctPartition,
                                       Point8 bandPrecinctExpn, uint32_t precinctGridWidth);

  Precinct* createPrecinct(bool isCompressor, uint16_t numLayers, uint64_t precinctIndex,
                           Rect32 bandPrecinctPartition, Point8 bandPrecinctExpn,
                           uint32_t precinctGridWidth, Point8 cblk_expn);

  t1::eBandOrientation orientation_ = t1::BAND_ORIENT_LL;

  std::vector<Precinct*> precincts_;

  std::unordered_map<uint64_t, uint64_t> precinctMap_;

  uint8_t maxBitPlanes_ = 0;

  float stepsize_ = 0;
};
 
} // namespace grk