/*
 * libopenraw - cfapattern.h
 *
 * Copyright (C) 2012 Hubert Figuière
 *
 * This library is free software: you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library.  If not, see
 * <http://www.gnu.org/licenses/>.
 */

#ifndef LIBOPENRAWPP_CFA_PATTERN_H_
#define LIBOPENRAWPP_CFA_PATTERN_H_

#include <stdint.h>
#include <libopenraw/consts.h>

namespace OpenRaw {

class CfaPattern
{
public:
  virtual ~CfaPattern();

  /** Set the pattern size */
  void setSize(uint16_t x, uint16_t y);

  /** Return if the pattern is 2x2 RGB */
  bool is2by2Rgb() const;

  /** 
   * @return the pattern type. Be cautious as this does not cover
   * non 2x2 RGB.
   */
  ::or_cfa_pattern patternType() const;
  const uint8_t* patternPattern(uint16_t& count) const;

  /** factory to return a singleton instance of the right pattern 
   *  @return a const CfaPattern. Never delete it. MAY BE NULL.
   */
  static const CfaPattern* twoByTwoPattern(::or_cfa_pattern);

protected:
  CfaPattern();
  CfaPattern(::or_cfa_pattern pattern, uint16_t width, uint16_t height);

  /** Set the pattern pattern.
   * @param pattern the actual pattern sequence left to right, 
   *  top to bottom
   * @param count the number of element. Should be width x height
   */
  void setPatternPattern(const uint8_t* pattern, uint16_t count);

private:
  // no copy allowed
  CfaPattern(const CfaPattern &);
  CfaPattern& operator=(const CfaPattern&);

  void setPatternType(::or_cfa_pattern pattern);

  class Private;
  
  Private *d;
};


}

#endif
/*
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*/