/******************************************************************************
 *
 * Project:  OpenCPN
 *
 ***************************************************************************
 *   Copyright (C) 2013 by David S. Register                               *
 *                                                                         *
 *   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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   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, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,  USA.         *
 ***************************************************************************
 */

#ifndef __GLTEXTUREDESCRIPTOR_H__
#define __GLTEXTUREDESCRIPTOR_H__

#include <wx/wxprec.h>

#ifndef WX_PRECOMP
#include <wx/wx.h>
#endif  // precompiled headers

#if defined(__OCPN__ANDROID__)
#include <GLES2/gl2.h>
#elif defined(__WXQT__) || defined(__WXGTK__)
#include <GL/glew.h>
#endif

#include "dychart.h"
#include "ocpn_types.h"
#include "color_types.h"

#define CA_READ 0
#define CA_WRITE 1

#define GPU_TEXTURE_UNKNOWN 0
#define GPU_TEXTURE_UNCOMPRESSED 1
#define GPU_TEXTURE_COMPRESSED 2

class glTexFactory;
class glTextureDescriptor {
public:
  glTextureDescriptor();
  ~glTextureDescriptor();
  void FreeAll();
  void FreeMap();
  void FreeComp();
  void FreeCompComp();

  size_t GetMapArrayAlloc(void);
  size_t GetCompArrayAlloc(void);
  size_t GetCompCompArrayAlloc(void);

  bool IsCompCompArrayComplete(int base_level);

  GLuint tex_name;
  int level_min;
  int x;
  int y;
  int nGPU_compressed;
  ColorScheme m_colorscheme;

  int tex_mem_used;

  unsigned char *map_array[10];
  unsigned char *comp_array[10];
  unsigned char *compcomp_array[10];
  int compcomp_size[10];

  int compdata_ticks;
};

#endif
