PPMMarker.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 <vector>
 
#include "buffer.h"
 
namespace grk
{
struct grk_ppx
{
  uint8_t* data_; /* data_ == nullptr => Zppx not read yet */
  uint32_t data_size_;
};
 
class PPMMarker
{
public:
  PPMMarker();
  ~PPMMarker();

  bool read(uint8_t* headerData, uint16_t headerSize);

  bool merge(void);
 
  std::vector<Buffer8> packetHeaders;
 
private:
  uint32_t markers_count;
  grk_ppx* markers;

  uint8_t* buffer;
};
 
} /* namespace grk */