libraw-rs-sys 0.0.4+libraw-0.20.1

/* -*- C++ -*-
 * Copyright 2019-2020 LibRaw LLC (info@libraw.org)
 *
 LibRaw uses code from dcraw.c -- Dave Coffin's raw photo decoder,
 dcraw.c is copyright 1997-2018 by Dave Coffin, dcoffin a cybercom o net.
 LibRaw do not use RESTRICTED code from dcraw.c

 LibRaw is free software; you can redistribute it and/or modify
 it under the terms of the one of two licenses as you choose:

1. GNU LESSER GENERAL PUBLIC LICENSE version 2.1
   (See file LICENSE.LGPL provided in LibRaw distribution archive for details).

2. COMMON DEVELOPMENT AND DISTRIBUTION LICENSE (CDDL) Version 1.0
   (See file LICENSE.CDDL provided in LibRaw distribution archive for details).

 */

#include "../../internal/dcraw_defs.h"

void LibRaw::parseAdobeRAFMakernote()
{

  uchar *PrivateMknBuf;
  unsigned posPrivateMknBuf;
  unsigned PrivateMknLength;
  unsigned PrivateOrder;
  unsigned PrivateEntries, PrivateTagID;
  unsigned PrivateTagBytes;
  unsigned wb_section_offset = 0;
  int posWB;
  int c;

#define CHECKSPACE(s)                                                          \
  if (posPrivateMknBuf + (s) > PrivateMknLength)                               \
  {                                                                            \
    free(PrivateMknBuf);                                                       \
    return;                                                                    \
  }
#define isWB(posWB)                                                            \
  sget2(posWB) != 0 && sget2(posWB + 2) != 0 && sget2(posWB + 4) != 0 &&       \
      sget2(posWB + 6) != 0 && sget2(posWB + 8) != 0 &&                        \
      sget2(posWB + 10) != 0 && sget2(posWB) != 0xff &&                        \
      sget2(posWB + 2) != 0xff && sget2(posWB + 4) != 0xff &&                  \
      sget2(posWB + 6) != 0xff && sget2(posWB + 8) != 0xff &&                  \
      sget2(posWB + 10) != 0xff && sget2(posWB) == sget2(posWB + 6) &&         \
      sget2(posWB) < sget2(posWB + 2) && sget2(posWB) < sget2(posWB + 4) &&    \
      sget2(posWB) < sget2(posWB + 8) && sget2(posWB) < sget2(posWB + 10)
#define imfRAFDataVersion imFuji.RAFDataVersion
#define imfRAFVersion imFuji.RAFVersion

  ushort use_WBcorr_coeffs = 0;
  double wbR_corr = 1.0;
  double wbB_corr = 1.0;

  if (strstr(model, "S7000") ||
      strstr(model, "S5000") ||
      strstr(model, "F700")  ||
      strstr(model, "S2Pro") ||
      strstr(model, "S20Pro")) {
    use_WBcorr_coeffs = 1;
    wbR_corr = 10.0 / 17.0 / 0.652941;
    wbB_corr = 2.0 /3.0 / (3.0 / 4.0 + 1.0 / 300.0);
  }

  order = 0x4d4d;
  PrivateMknLength = get4();

  if ((PrivateMknLength > 4) && (PrivateMknLength < 10240000) &&
      (PrivateMknBuf = (uchar *)malloc(PrivateMknLength + 1024)))
  { // 1024b for safety
    fread(PrivateMknBuf, PrivateMknLength, 1, ifp);
    PrivateOrder = sget2(PrivateMknBuf);
    posPrivateMknBuf = sget4(PrivateMknBuf + 2) + 12;

    memcpy(imFuji.SerialSignature, PrivateMknBuf + 6, 0x0c);
    imFuji.SerialSignature[0x0c] = 0;
    memcpy(model, PrivateMknBuf + 0x12, 0x20);
    model[0x20] = 0;
    memcpy(model2, PrivateMknBuf + 0x32, 4);
    model2[4] = 0;
    strcpy(imFuji.RAFVersion, model2);
    PrivateEntries = sget2(PrivateMknBuf + posPrivateMknBuf);
    if ((PrivateEntries > 1000) ||
        ((PrivateOrder != 0x4d4d) && (PrivateOrder != 0x4949)))
    {
      free(PrivateMknBuf);
      return;
    }
    posPrivateMknBuf += 2;
    /*
     * because Adobe DNG converter strips or misplaces 0xfnnn tags,
     * Auto WB for following cameras is missing for now
     * - F550EXR
     * - F600EXR
     * - F770EXR
     * - F800EXR
     * - F900EXR
     * - HS10
     * - HS11
     * - HS20EXR
     * - HS30EXR
     * - HS50EXR
     * - S1
     * - SL1000
     **/
    while (PrivateEntries--)
    {
      order = 0x4d4d;
      CHECKSPACE(4);
      PrivateTagID = sget2(PrivateMknBuf + posPrivateMknBuf);
      PrivateTagBytes = sget2(PrivateMknBuf + posPrivateMknBuf + 2);
      posPrivateMknBuf += 4;
      order = PrivateOrder;

      if (PrivateTagID == 0x2000)
      {
        FORC4 icWBC[LIBRAW_WBI_Auto][GRGB_2_RGBG(c)] =
            sget2(PrivateMknBuf + posPrivateMknBuf + (c << 1));
        if (use_WBcorr_coeffs) {
          icWBC[LIBRAW_WBI_Auto][0] *= wbR_corr;
          icWBC[LIBRAW_WBI_Auto][2] *= wbB_corr;
        }
      }
      else if (PrivateTagID == 0x2100)
      {
        FORC4 icWBC[LIBRAW_WBI_FineWeather][GRGB_2_RGBG(c)] =
            sget2(PrivateMknBuf + posPrivateMknBuf + (c << 1));
        if (use_WBcorr_coeffs) {
          icWBC[LIBRAW_WBI_FineWeather][0] *= wbR_corr;
          icWBC[LIBRAW_WBI_FineWeather][2] *= wbB_corr;
        }
      }
      else if (PrivateTagID == 0x2200)
      {
        FORC4 icWBC[LIBRAW_WBI_Shade][GRGB_2_RGBG(c)] =
            sget2(PrivateMknBuf + posPrivateMknBuf + (c << 1));
        if (use_WBcorr_coeffs) {
          icWBC[LIBRAW_WBI_Shade][0] *= wbR_corr;
          icWBC[LIBRAW_WBI_Shade][2] *= wbB_corr;
        }
      }
      else if (PrivateTagID == 0x2300)
      {
        FORC4 icWBC[LIBRAW_WBI_FL_D][GRGB_2_RGBG(c)] =
            sget2(PrivateMknBuf + posPrivateMknBuf + (c << 1));
        if (use_WBcorr_coeffs) {
          icWBC[LIBRAW_WBI_FL_D][0] *= wbR_corr;
          icWBC[LIBRAW_WBI_FL_D][2] *= wbB_corr;
        }
      }
      else if (PrivateTagID == 0x2301)
      {
        FORC4 icWBC[LIBRAW_WBI_FL_N][GRGB_2_RGBG(c)] =
            sget2(PrivateMknBuf + posPrivateMknBuf + (c << 1));
        if (use_WBcorr_coeffs) {
          icWBC[LIBRAW_WBI_FL_N][0] *= wbR_corr;
          icWBC[LIBRAW_WBI_FL_N][2] *= wbB_corr;
        }
      }
      else if (PrivateTagID == 0x2302)
      {
        FORC4 icWBC[LIBRAW_WBI_FL_WW][GRGB_2_RGBG(c)] =
            sget2(PrivateMknBuf + posPrivateMknBuf + (c << 1));
        if (use_WBcorr_coeffs) {
          icWBC[LIBRAW_WBI_FL_WW][0] *= wbR_corr;
          icWBC[LIBRAW_WBI_FL_WW][2] *= wbB_corr;
        }
      }
      else if (PrivateTagID == 0x2310)
      {
        FORC4 icWBC[LIBRAW_WBI_FL_L][GRGB_2_RGBG(c)] =
            sget2(PrivateMknBuf + posPrivateMknBuf + (c << 1));
        if (use_WBcorr_coeffs) {
          icWBC[LIBRAW_WBI_FL_L][0] *= wbR_corr;
          icWBC[LIBRAW_WBI_FL_L][2] *= wbB_corr;
        }
      }
      else if (PrivateTagID == 0x2311)
      {
        FORC4 icWBC[LIBRAW_WBI_FL_W][GRGB_2_RGBG(c)] =
            sget2(PrivateMknBuf + posPrivateMknBuf + (c << 1));
        if (use_WBcorr_coeffs) {
          icWBC[LIBRAW_WBI_FL_W][0] *= wbR_corr;
          icWBC[LIBRAW_WBI_FL_W][2] *= wbB_corr;
        }
      }
      else if (PrivateTagID == 0x2400)
      {
        FORC4 icWBC[LIBRAW_WBI_Tungsten][GRGB_2_RGBG(c)] =
            sget2(PrivateMknBuf + posPrivateMknBuf + (c << 1));
        if (use_WBcorr_coeffs) {
          icWBC[LIBRAW_WBI_Tungsten][0] *= wbR_corr;
          icWBC[LIBRAW_WBI_Tungsten][2] *= wbB_corr;
        }
      }
      else if (PrivateTagID == 0x2410)
      {
        FORC4 icWBC[LIBRAW_WBI_Flash][GRGB_2_RGBG(c)] =
            sget2(PrivateMknBuf + posPrivateMknBuf + (c << 1));
        if (use_WBcorr_coeffs) {
          icWBC[LIBRAW_WBI_Flash][0] *= wbR_corr;
          icWBC[LIBRAW_WBI_Flash][2] *= wbB_corr;
        }
      }
      else if (PrivateTagID == 0x2f00)
      {
        int nWBs = MIN(sget4(PrivateMknBuf + posPrivateMknBuf), 6);
        posWB = posPrivateMknBuf + 4;
        for (int wb_ind = 0; wb_ind < nWBs; wb_ind++)
        {
          FORC4 icWBC[LIBRAW_WBI_Custom1 + wb_ind][GRGB_2_RGBG(c)] =
              sget2(PrivateMknBuf + posWB + (c << 1));
          if (use_WBcorr_coeffs) {
            icWBC[LIBRAW_WBI_Custom1 + wb_ind][0] *= wbR_corr;
            icWBC[LIBRAW_WBI_Custom1 + wb_ind][2] *= wbB_corr;
          }
          posWB += 8;
        }
      }
      else if (PrivateTagID == 0x2ff0)
      {
        FORC4 cam_mul[GRGB_2_RGBG(c)] =
            sget2(PrivateMknBuf + posPrivateMknBuf + (c << 1));
        if (use_WBcorr_coeffs) {
         cam_mul[0] *= wbR_corr;
         cam_mul[2] *= wbB_corr;
        }
      }

      else if (PrivateTagID == 0x9650)
      {
        CHECKSPACE(4);
        short a = (short)sget2(PrivateMknBuf + posPrivateMknBuf);
        float b = fMAX(1.0f, sget2(PrivateMknBuf + posPrivateMknBuf + 2));
        imFuji.ExpoMidPointShift = a / b;
      }
      else if ((PrivateTagID == 0xc000) && (PrivateTagBytes > 3) &&
               (PrivateTagBytes < 10240000))
      {
        order = 0x4949;
        if (PrivateTagBytes != 4096) // not one of Fuji X-A3, X-A5, X-A7, X-A10, X-A20, X-T100, X-T200, XF10
        {
          if (!sget2(PrivateMknBuf + posPrivateMknBuf))
            imfRAFDataVersion = sget2(PrivateMknBuf + posPrivateMknBuf + 2);

          for (posWB = 0; posWB < (int)PrivateTagBytes - 16; posWB++)
          {
            if ((!memcmp(PrivateMknBuf + posWB, "TSNERDTS", 8) &&
                 (sget2(PrivateMknBuf + posWB + 10) > 125)))
            {
              posWB += 10;
              icWBC[LIBRAW_WBI_Auto][1] =
                  icWBC[LIBRAW_WBI_Auto][3] =
                      sget2(PrivateMknBuf + posWB);
              icWBC[LIBRAW_WBI_Auto][0] =
                  sget2(PrivateMknBuf + posWB + 2);
              icWBC[LIBRAW_WBI_Auto][2] =
                  sget2(PrivateMknBuf + posWB + 4);
              break;
            }
          }
          if (imfRAFDataVersion == 0x0146 || // X20
              imfRAFDataVersion == 0x0149 || // X100S
              imfRAFDataVersion == 0x0249)   // X100S
          {
            wb_section_offset = 0x1410;
          }
          else if (imfRAFDataVersion == 0x014d || // X-M1
                   imfRAFDataVersion == 0x014e)   // X-A1, X-A2
          {
            wb_section_offset = 0x1474;
          }
          else if (imfRAFDataVersion == 0x014f || // X-E2
                   imfRAFDataVersion == 0x024f || // X-E2
                   imfRAFDataVersion == 0x025d)   // X-H1
          {
            wb_section_offset = 0x1480;
          }
          else if (imfRAFDataVersion == 0x0150) // XQ1, XQ2
          {
            wb_section_offset = 0x1414;
          }
          else if (imfRAFDataVersion == 0x0151 || // X-T1 w/diff. fws
                   imfRAFDataVersion == 0x0251 || imfRAFDataVersion == 0x0351 ||
                   imfRAFDataVersion == 0x0451 || imfRAFDataVersion == 0x0551)
          {
            wb_section_offset = 0x14b0;
          }
          else if (imfRAFDataVersion == 0x0152 || // X30
                   imfRAFDataVersion == 0x0153)   // X100T
          {
            wb_section_offset = 0x1444;
          }
          else if (imfRAFDataVersion == 0x0154) // X-T10
          {
            wb_section_offset = 0x1824;
          }
          else if (imfRAFDataVersion == 0x0155) // X70
          {
            wb_section_offset = 0x17b4;
          }
          else if (imfRAFDataVersion == 0x0255) // X-Pro2
          {
            wb_section_offset = 0x135c;
          }
          else if (imfRAFDataVersion == 0x0258 || // X-T2
                   imfRAFDataVersion == 0x025b)   // X-T20
          {
            wb_section_offset = 0x13dc;
          }
          else if (imfRAFDataVersion == 0x0259) // X100F
          {
            wb_section_offset = 0x1370;
          }
          else if (imfRAFDataVersion == 0x025a) // GFX 50S
          {
            wb_section_offset = 0x1424;
          }
          else if (imfRAFDataVersion == 0x025c) // X-E3
          {
            wb_section_offset = 0x141c;
          }
          else if (imfRAFDataVersion == 0x025e) // X-T3
          {
            wb_section_offset = 0x2014;
          }
          else if (imfRAFDataVersion == 0x025f) // X-T30, GFX 50R, GFX 100
          {
            if (!strcmp(model, "X-T30")) {
              if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x20b8))
                wb_section_offset = 0x20b8;
              else if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x20c8))
                wb_section_offset = 0x20c8;
            }
            else if (!strcmp(model, "GFX 50R"))
              wb_section_offset = 0x1424;
            else if (!strcmp(model, "GFX 100"))
              wb_section_offset = 0x20e4;
          }
          else if (imfRAFDataVersion == 0x0260) // X-Pro3
          {
            wb_section_offset = 0x20e8;
          }
          else if (imfRAFDataVersion == 0x0261) // X100V
          {
            wb_section_offset = 0x2078;
          }
          else if (imfRAFDataVersion == 0x0262) // X-T4
          {
            wb_section_offset = 0x21c8;
          }

            /* try for unknown RAF Data versions */
          else if (!strcmp(model, "X-Pro2"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x135c))
              wb_section_offset = 0x135c;
          }
          else if (!strcmp(model, "X100F"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1370))
              wb_section_offset = 0x1370;
          }
          else if (!strcmp(model, "X-T2"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x13dc))
              wb_section_offset = 0x13dc;
          }
          else if (!strcmp(model, "X-T20"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x13dc))
              wb_section_offset = 0x13dc;
          }
          else if (!strcmp(model, "X20"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1410))
              wb_section_offset = 0x1410;
          }
          else if (!strcmp(model, "X100S"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1410))
              wb_section_offset = 0x1410;
          }
          else if (!strcmp(model, "XQ1"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1414))
              wb_section_offset = 0x1414;
          }
          else if (!strcmp(model, "XQ2"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1414))
              wb_section_offset = 0x1414;
          }
          else if (!strcmp(model, "X-E3"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x141c))
              wb_section_offset = 0x141c;
          }
          else if (!strcmp(model, "GFX 50S"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1424))
              wb_section_offset = 0x1424;
          }
          else if (!strcmp(model, "GFX 50R"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1424))
              wb_section_offset = 0x1424;
          }
          else if (!strcmp(model, "X30"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1444))
              wb_section_offset = 0x1444;
          }
          else if (!strcmp(model, "X100T"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1444))
              wb_section_offset = 0x1444;
          }
          else if (!strcmp(model, "X-M1"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1474))
              wb_section_offset = 0x1474;
          }
          else if (!strcmp(model, "X-A1"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1474))
              wb_section_offset = 0x1474;
          }
          else if (!strcmp(model, "X-A2"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1474))
              wb_section_offset = 0x1474;
          }
          else if (!strcmp(model, "X-E2"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1480))
              wb_section_offset = 0x1480;
          }
          else if (!strcmp(model, "X-H1"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1480))
              wb_section_offset = 0x1480;
          }
          else if (!strcmp(model, "X-T1"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x14b0))
              wb_section_offset = 0x14b0;
          }
          else if (!strcmp(model, "X70"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x17b4))
              wb_section_offset = 0x17b4;
          }
          else if (!strcmp(model, "X-T10"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1824))
              wb_section_offset = 0x1824;
          }
          else if (!strcmp(model, "X-E2S"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1840))
              wb_section_offset = 0x1840;
          }
          else if (!strcmp(model, "X-T3"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x2014))
              wb_section_offset = 0x2014;
          }
          else if (!strcmp(model, "X100V"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x20e8))
              wb_section_offset = 0x2078;
          }
          else if (!strcmp(model, "X-T30"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x20b8))
              wb_section_offset = 0x20b8;
          }
          else if (!strcmp(model, "GFX 100"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x20e4))
              wb_section_offset = 0x20e4;
          }
          else if (!strcmp(model, "X-Pro3"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x20e8))
              wb_section_offset = 0x20e8;
          }
          else if (!strcmp(model, "X-T4"))
          {
            if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x21c8))
              wb_section_offset = 0x21c8;
          }

            /* no RAF Data version for the models below */
          else if (!strcmp(model, "FinePix X100")) // X100 0 0x19f0 0x19e8
          {
            if (!strcmp(imfRAFVersion, "0069"))
              wb_section_offset = 0x19e8;
            else if (!strcmp(imfRAFVersion, "0100"))
              wb_section_offset = 0x19f0;
            else if (!strcmp(imfRAFVersion, "0110"))
              wb_section_offset = 0x19f0;
            else if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x19e8))
              wb_section_offset = 0x19e8;
            else if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x19f0))
              wb_section_offset = 0x19f0;
          }
          else if (!strcmp(model, "X-E1")) // X-E1 0 0x13ac
          {
            if (!strcmp(imfRAFVersion, "0101"))
              wb_section_offset = 0x13ac;
            else if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x13ac))
              wb_section_offset = 0x13ac;
          }
          else if (!strcmp(model, "X-Pro1")) // X-Pro1 0 0x13a4
          {
            if (!strcmp(imfRAFVersion, "0100"))
              wb_section_offset = 0x13a4;
            else if (!strcmp(imfRAFVersion, "0101"))
              wb_section_offset = 0x13a4;
            else if (!strcmp(imfRAFVersion, "0204"))
              wb_section_offset = 0x13a4;
            else if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x13a4))
              wb_section_offset = 0x13a4;
          }
          else if (!strcmp(model, "XF1")) // XF1 0 0x138c
          {
            if (!strcmp(imfRAFVersion, "0100"))
              wb_section_offset = 0x138c;
            else if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x138c))
              wb_section_offset = 0x138c;
          }
          else if (!strcmp(model, "X-S1")) // X-S1 0 0x1284
          {
            if (!strcmp(imfRAFVersion, "0100"))
              wb_section_offset = 0x1284;
            else if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1284))
              wb_section_offset = 0x1284;
          }
          else if (!strcmp(model, "X10")) // X10 0 0x1280 0x12d4
          {
            if (!strcmp(imfRAFVersion, "0100"))
              wb_section_offset = 0x1280;
            else if (!strcmp(imfRAFVersion, "0102"))
              wb_section_offset = 0x1280;
            else if (!strcmp(imfRAFVersion, "0103"))
              wb_section_offset = 0x12d4;
            else if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x1280))
              wb_section_offset = 0x1280;
            else if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x12d4))
              wb_section_offset = 0x12d4;
          }
          else if (!strcmp(model, "XF1")) // XF1 0 0x138c
          {
            if (!strcmp(imfRAFVersion, "0100"))
              wb_section_offset = 0x138c;
            else if (isWB(PrivateMknBuf + posPrivateMknBuf + 0x138c))
              wb_section_offset = 0x138c;
          }
          if (wb_section_offset &&
              isWB(PrivateMknBuf + posPrivateMknBuf + wb_section_offset))
          {

            if (!imfRAFDataVersion)
            {
              posWB = posPrivateMknBuf + wb_section_offset - 6;
              icWBC[LIBRAW_WBI_Auto][1] =
                  icWBC[LIBRAW_WBI_Auto][3] =
                      sget2(PrivateMknBuf + posWB);
              icWBC[LIBRAW_WBI_Auto][0] =
                  sget2(PrivateMknBuf + posWB + 2);
              icWBC[LIBRAW_WBI_Auto][2] =
                  sget2(PrivateMknBuf + posWB + 4);
            }

            posWB = posPrivateMknBuf + wb_section_offset;
            for (int wb_ind = 0; wb_ind < Fuji_wb_list1.size(); posWB += 6, wb_ind++)
            {
              icWBC[Fuji_wb_list1[wb_ind]][1] =
                  icWBC[Fuji_wb_list1[wb_ind]][3] =
                      sget2(PrivateMknBuf + posWB);
              icWBC[Fuji_wb_list1[wb_ind]][0] =
                  sget2(PrivateMknBuf + posWB + 2);
              icWBC[Fuji_wb_list1[wb_ind]][2] =
                  sget2(PrivateMknBuf + posWB + 4);
            }
            int found = 0;
            if ((imfRAFDataVersion == 0x0260) ||
                (imfRAFDataVersion == 0x0261) ||
                (imfRAFDataVersion == 0x0262))
              posWB += 0x30;
            posWB += 0xc0;
            ushort Gval = sget2(PrivateMknBuf + posWB);
            for (int posEndCCTsection = posWB; posEndCCTsection < (posWB + 30);
                 posEndCCTsection += 6)
            {
              if (sget2(PrivateMknBuf + posEndCCTsection) != Gval)
              {
                if ((imfRAFDataVersion == 0x0260) ||
                    (imfRAFDataVersion == 0x0261) ||
                    (imfRAFDataVersion == 0x0262))
                  wb_section_offset = posEndCCTsection - 34*3*2; // 34 records, 3 2-byte values in a record
                else
                  wb_section_offset = posEndCCTsection - 31*3*2; // 31 records, 3 2-byte values in a record
                found = 1;
                break;
              }
            }

            if (found)
            {
              for (int iCCT = 0; iCCT < 31; iCCT++)
              {
                icWBCCTC[iCCT][0] = FujiCCT_K[iCCT];
                icWBCCTC[iCCT][1] = sget2(PrivateMknBuf + wb_section_offset + iCCT * 6 + 2);
                icWBCCTC[iCCT][2] = icWBCCTC[iCCT][4] = sget2(PrivateMknBuf + wb_section_offset + iCCT * 6);
                icWBCCTC[iCCT][3] = sget2(PrivateMknBuf + wb_section_offset + iCCT * 6 + 4);
              }
            }
          }
        }
        else // process 4K raf data
        {
          int wb[4];
          int nWB, tWB, pWB;
          int iCCT = 0;
          is_4K_RAFdata = 1; /* X-A3, X-A5, X-A7, X-A10, X-A20, X-T100, X-T200, XF10 */
          posWB = posPrivateMknBuf + 0x200;
          for (int wb_ind = 0; wb_ind < 42; wb_ind++)
          {
            nWB = sget4(PrivateMknBuf + posWB);
            posWB += 4;
            tWB = sget4(PrivateMknBuf + posWB);
            posWB += 4;
            wb[0] = sget4(PrivateMknBuf + posWB) << 1;
            posWB += 4;
            wb[1] = sget4(PrivateMknBuf + posWB);
            posWB += 4;
            wb[3] = sget4(PrivateMknBuf + posWB);
            posWB += 4;
            wb[2] = sget4(PrivateMknBuf + posWB) << 1;
            posWB += 4;

            if (tWB && (iCCT < 255))
            {
              icWBCCTC[iCCT][0] = tWB;
              FORC4 icWBCCTC[iCCT][c + 1] = wb[c];
              iCCT++;
            }
            if (nWB != 0x46)
            {
              for (pWB = 1; pWB < Fuji_wb_list2.size(); pWB += 2)
              {
                if (Fuji_wb_list2[pWB] == nWB)
                {
                  FORC4 icWBC[Fuji_wb_list2[pWB - 1]][c] =
                      wb[c];
                  break;
                }
              }
            }
          }
        }
      }
      posPrivateMknBuf += PrivateTagBytes;
    }
    free(PrivateMknBuf);
  }
#undef imfRAFVersion
#undef imfRAFDataVersion
#undef CHECKSPACE
}
void LibRaw::parseFujiMakernotes(unsigned tag, unsigned type, unsigned len,
                                 unsigned dng_writer)
{
  if ((dng_writer == nonDNG) && (tag == 0x0010))
  {
    char FujiSerial[sizeof(imgdata.shootinginfo.InternalBodySerial)];
    char *words[4];
    char yy[2], mm[3], dd[3], ystr[16], ynum[16];
    int year, nwords, ynum_len;
    unsigned c;
    memset(FujiSerial, 0, sizeof(imgdata.shootinginfo.InternalBodySerial));
    ifp->read(FujiSerial, MIN(len,sizeof(FujiSerial)), 1);
    nwords = getwords(FujiSerial, words, 4,
                      sizeof(imgdata.shootinginfo.InternalBodySerial));
    for (int i = 0; i < nwords; i++)
    {
      mm[2] = dd[2] = 0;
      if (strnlen(words[i],
                  sizeof(imgdata.shootinginfo.InternalBodySerial) - 1) < 18)
      {
        if (i == 0)
        {
          strncpy(imgdata.shootinginfo.InternalBodySerial, words[0],
                  sizeof(imgdata.shootinginfo.InternalBodySerial) - 1);
        }
        else
        {
          char tbuf[sizeof(imgdata.shootinginfo.InternalBodySerial)];
          snprintf(tbuf, sizeof(tbuf)-1, "%s %s",
                   imgdata.shootinginfo.InternalBodySerial, words[i]);
          strncpy(imgdata.shootinginfo.InternalBodySerial, tbuf,
                  sizeof(imgdata.shootinginfo.InternalBodySerial) - 1);
        }
      }
      else
      {
        strncpy(
            dd,
            words[i] +
                strnlen(words[i],
                        sizeof(imgdata.shootinginfo.InternalBodySerial) - 1) -
                14,
            2);
        strncpy(
            mm,
            words[i] +
                strnlen(words[i],
                        sizeof(imgdata.shootinginfo.InternalBodySerial) - 1) -
                16,
            2);
        strncpy(
            yy,
            words[i] +
                strnlen(words[i],
                        sizeof(imgdata.shootinginfo.InternalBodySerial) - 1) -
                18,
            2);
        year = (yy[0] - '0') * 10 + (yy[1] - '0');
        if (year < 70)
          year += 2000;
        else
          year += 1900;

        ynum_len = MIN(
            int(sizeof(ynum) - 1),
            (int)strnlen(words[i],
                         sizeof(imgdata.shootinginfo.InternalBodySerial) - 1) -
                18);
        strncpy(ynum, words[i], ynum_len);
        ynum[ynum_len] = 0;
        for (int j = 0; ynum[j] && ynum[j + 1] && sscanf(ynum + j, "%2x", &c);
             j += 2)
          ystr[j / 2] = c;
        ystr[ynum_len / 2 + 1] = 0;
        strcpy(model2, ystr);

        if (i == 0)
        {
          char tbuf[sizeof(imgdata.shootinginfo.InternalBodySerial)];

          if (nwords == 1)
          {
            snprintf(
                tbuf, sizeof(tbuf), "%s %s %d:%s:%s",
                words[0] +
                    strnlen(words[0],
                            sizeof(imgdata.shootinginfo.InternalBodySerial) -
                                1) -
                    12,
                ystr, year, mm, dd);
          }
          else
          {
            snprintf(
                tbuf, sizeof(tbuf), "%s %d:%s:%s %s", ystr, year, mm, dd,
                words[0] +
                    strnlen(words[0],
                            sizeof(imgdata.shootinginfo.InternalBodySerial) -
                                1) -
                    12);
          }
          strncpy(imgdata.shootinginfo.InternalBodySerial, tbuf,
                  sizeof(imgdata.shootinginfo.InternalBodySerial) - 1);
        }
        else
        {
          char tbuf[sizeof(imgdata.shootinginfo.InternalBodySerial)];
          snprintf(
              tbuf, sizeof(tbuf), "%s %s %d:%s:%s %s",
              imgdata.shootinginfo.InternalBodySerial, ystr, year, mm, dd,
              words[i] +
                  strnlen(words[i],
                          sizeof(imgdata.shootinginfo.InternalBodySerial) - 1) -
                  12);
          strncpy(imgdata.shootinginfo.InternalBodySerial, tbuf,
                  sizeof(imgdata.shootinginfo.InternalBodySerial) - 1);
        }
      }
    }
  }
  else
    switch (tag)
    {
    case 0x1002:
      imFuji.WB_Preset = get2();
      break;
    case 0x1011:
      imCommon.FlashEC = getreal(type);
      break;
    case 0x1020:
      imFuji.Macro = get2();
      break;
    case 0x1021:
      imFuji.FocusMode = imgdata.shootinginfo.FocusMode = get2();
      break;
    case 0x1022:
      imFuji.AFMode = get2();
      break;
    case 0x1023:
      imFuji.FocusPixel[0] = get2();
      imFuji.FocusPixel[1] = get2();
      break;
    case 0x1034:
      imFuji.ExrMode = get2();
      break;
    case 0x104d:
      FujiCropMode = get2(); // odd: one of raw dimensions here can be lost
      break;
    case 0x1050:
      imFuji.ShutterType = get2();
      break;
    case 0x1103:
      imgdata.shootinginfo.DriveMode = get2();
      imFuji.DriveMode = imgdata.shootinginfo.DriveMode & 0xff;
      break;

    case 0x1400:
      imFuji.DynamicRange = get2();
      break;
    case 0x1401:
      imFuji.FilmMode = get2();
      break;
    case 0x1402:
      imFuji.DynamicRangeSetting = get2();
      break;
    case 0x1403:
      imFuji.DevelopmentDynamicRange = get2();
      break;
    case 0x140b:
      imFuji.AutoDynamicRange = get2();
      break;
    case 0x1443:
      imFuji.DRangePriority = get2();
      break;
    case 0x1444:
      imFuji.DRangePriorityAuto = get2();
      break;
    case 0x1445:
      imFuji.DRangePriorityFixed = get2();
      break;

    case 0x1404:
      ilm.MinFocal = getreal(type);
      break;
    case 0x1405:
      ilm.MaxFocal = getreal(type);
      break;
    case 0x1406:
      ilm.MaxAp4MinFocal = getreal(type);
      break;
    case 0x1407:
      ilm.MaxAp4MaxFocal = getreal(type);
      break;
    case 0x1422:
      imFuji.ImageStabilization[0] = get2();
      imFuji.ImageStabilization[1] = get2();
      imFuji.ImageStabilization[2] = get2();
      imgdata.shootinginfo.ImageStabilization =
          (imFuji.ImageStabilization[0] << 9) + imFuji.ImageStabilization[1];
      break;
    case 0x1431:
      imFuji.Rating = get4();
      break;
    case 0x3820:
      imFuji.FrameRate = get2();
      break;
    case 0x3821:
      imFuji.FrameWidth = get2();
      break;
    case 0x3822:
      imFuji.FrameHeight = get2();
      break;
    }
  return;
}

void LibRaw::parse_fuji(int offset)
{
  unsigned entries, tag, len, save, c;
  ushort raw_inset_present = 0;
  ushort use_WBcorr_coeffs = 0;
  double wbR_corr = 1.0;
  double wbB_corr = 1.0;

  fseek(ifp, offset, SEEK_SET);
  entries = get4();
  if (entries > 255)
    return;
  imgdata.process_warnings |= LIBRAW_WARN_PARSEFUJI_PROCESSED;

  if (strstr(model, "S7000") ||
      strstr(model, "S5000") ||
      strstr(model, "F700")  ||
      strstr(model, "S2Pro") ||
      strstr(model, "S20Pro")) {
    use_WBcorr_coeffs = 1;
    wbR_corr = 10.0 / 17.0 / 0.652941;
    wbB_corr = 2.0 /3.0 / (3.0 / 4.0 + 1.0 / 300.0);
  }

  while (entries--)
  {
    tag = get2();
    len = get2();
    save = ftell(ifp);

    if (tag == 0x0100) // RawImageFullSize
    {
      raw_height = get2();
      raw_width = get2();
      raw_inset_present = 1;
    }
    else if (tag == 0x0121) // RawImageSize
    {
      height = get2();
      if ((width = get2()) == 4284)
        width += 3;
    }
    else if (tag == 0x0130) // FujiLayout
    {
      fuji_layout = fgetc(ifp) >> 7;
      fuji_width = !(fgetc(ifp) & 8);
    }
    else if (tag == 0x0131) // XTransLayout
    {
      filters = 9;
      char *xtrans_abs_alias = &xtrans_abs[0][0];
      FORC(36)
      {
        int q = fgetc(ifp);
        xtrans_abs_alias[35 - c] = MAX(0, MIN(q, 2)); /* & 3;*/
      }
    }
    else if (tag == 0x2ff0) // WB_GRGBLevels
    {
      FORC4 cam_mul[GRGB_2_RGBG(c)] = get2();
      if (use_WBcorr_coeffs) {
       cam_mul[0] *= wbR_corr;
       cam_mul[2] *= wbB_corr;
      }
    }

    else if ((tag == 0x0110) && raw_inset_present) // RawImageCropTopLeft
    {
      imgdata.sizes.raw_inset_crop.ctop = get2();
      imgdata.sizes.raw_inset_crop.cleft = get2();
    }
    else if ((tag == 0x0111) && raw_inset_present) // RawImageCroppedSize
    {
      imgdata.sizes.raw_inset_crop.cheight = get2();
      imgdata.sizes.raw_inset_crop.cwidth = get2();
    }
    else if ((tag == 0x0115) && raw_inset_present) // RawImageAspectRatio
    {
      int a = get2();
      int b = get2();
      if (a * b == 6)
        imgdata.sizes.raw_inset_crop.aspect = LIBRAW_IMAGE_ASPECT_3to2;
      else if (a * b == 12)
        imgdata.sizes.raw_inset_crop.aspect = LIBRAW_IMAGE_ASPECT_4to3;
      else if (a * b == 144)
        imgdata.sizes.raw_inset_crop.aspect = LIBRAW_IMAGE_ASPECT_16to9;
      else if (a * b == 1)
        imgdata.sizes.raw_inset_crop.aspect = LIBRAW_IMAGE_ASPECT_1to1;
    }
    else if (tag == 0x9200) // RelativeExposure
    {
      int a = get4();
      if ((a == 0x01000100) || (a <= 0))
        imFuji.BrightnessCompensation = 0.0f;
      else if (a == 0x00100100)
        imFuji.BrightnessCompensation = 4.0f;
      else
        imFuji.BrightnessCompensation =
            24.0f - float(log((double)a) / log(2.0));
    }
    else if (tag == 0x9650) // RawExposureBias
    {
      short a = (short)get2();
      float b = fMAX(1.0f, get2());
      imFuji.ExpoMidPointShift = a / b;
    }
    else if (tag == 0x2f00) // WB_GRGBLevels
    {
      int nWBs = get4();
      nWBs = MIN(nWBs, 6);
      for (int wb_ind = 0; wb_ind < nWBs; wb_ind++)
      {
        FORC4 icWBC[LIBRAW_WBI_Custom1 + wb_ind][GRGB_2_RGBG(c)] = get2();
        if (use_WBcorr_coeffs) {
          icWBC[LIBRAW_WBI_Custom1 + wb_ind][0] *= wbR_corr;
          icWBC[LIBRAW_WBI_Custom1 + wb_ind][2] *= wbB_corr;
        }
        fseek(ifp, 8, SEEK_CUR);
      }
    }
    else if (tag == 0x2000) // WB_GRGBLevelsAuto
    {
      FORC4 icWBC[LIBRAW_WBI_Auto][GRGB_2_RGBG(c)] = get2();
      if (use_WBcorr_coeffs) {
        icWBC[LIBRAW_WBI_Auto][0] *= wbR_corr;
        icWBC[LIBRAW_WBI_Auto][2] *= wbB_corr;
      }
    }
    else if (tag == 0x2100) // WB_GRGBLevelsDaylight
    {
      FORC4 icWBC[LIBRAW_WBI_FineWeather][GRGB_2_RGBG(c)] = get2();
      if (use_WBcorr_coeffs) {
        icWBC[LIBRAW_WBI_FineWeather][0] *= wbR_corr;
        icWBC[LIBRAW_WBI_FineWeather][2] *= wbB_corr;
      }
    }
    else if (tag == 0x2200) // WB_GRGBLevelsCloudy
    {
      FORC4 icWBC[LIBRAW_WBI_Shade][GRGB_2_RGBG(c)] = get2();
      if (use_WBcorr_coeffs) {
        icWBC[LIBRAW_WBI_Shade][0] *= wbR_corr;
        icWBC[LIBRAW_WBI_Shade][2] *= wbB_corr;
      }
    }
    else if (tag == 0x2300) // WB_GRGBLevelsDaylightFluor
    {
      FORC4 icWBC[LIBRAW_WBI_FL_D][GRGB_2_RGBG(c)] = get2();
      if (use_WBcorr_coeffs) {
        icWBC[LIBRAW_WBI_FL_D][0] *= wbR_corr;
        icWBC[LIBRAW_WBI_FL_D][2] *= wbB_corr;
      }
    }
    else if (tag == 0x2301) // WB_GRGBLevelsDayWhiteFluor
    {
      FORC4 icWBC[LIBRAW_WBI_FL_N][GRGB_2_RGBG(c)] = get2();
      if (use_WBcorr_coeffs) {
        icWBC[LIBRAW_WBI_FL_N][0] *= wbR_corr;
        icWBC[LIBRAW_WBI_FL_N][2] *= wbB_corr;
      }
    }
    else if (tag == 0x2302) // WB_GRGBLevelsWhiteFluorescent
    {
      FORC4 icWBC[LIBRAW_WBI_FL_WW][GRGB_2_RGBG(c)] = get2();
      if (use_WBcorr_coeffs) {
        icWBC[LIBRAW_WBI_FL_WW][0] *= wbR_corr;
        icWBC[LIBRAW_WBI_FL_WW][2] *= wbB_corr;
      }
    }
    else if (tag == 0x2310) // WB_GRGBLevelsWarmWhiteFluor
    {
      FORC4 icWBC[LIBRAW_WBI_FL_L][GRGB_2_RGBG(c)] = get2();
      if (use_WBcorr_coeffs) {
        icWBC[LIBRAW_WBI_FL_L][0] *= wbR_corr;
        icWBC[LIBRAW_WBI_FL_L][2] *= wbB_corr;
      }
    }
    else if (tag == 0x2311) // WB_GRGBLevelsLivingRoomWarmWhiteFluor
    {
      FORC4 icWBC[LIBRAW_WBI_FL_W][GRGB_2_RGBG(c)] = get2();
      if (use_WBcorr_coeffs) {
        icWBC[LIBRAW_WBI_FL_W][0] *= wbR_corr;
        icWBC[LIBRAW_WBI_FL_W][2] *= wbB_corr;
      }
    }
    else if (tag == 0x2400) // WB_GRGBLevelsTungsten
    {
      FORC4 icWBC[LIBRAW_WBI_Tungsten][GRGB_2_RGBG(c)] = get2();
      if (use_WBcorr_coeffs) {
        icWBC[LIBRAW_WBI_Tungsten][0] *= wbR_corr;
        icWBC[LIBRAW_WBI_Tungsten][2] *= wbB_corr;
      }
    }
    else if (tag == 0x2410)
    {
      FORC4 icWBC[LIBRAW_WBI_Flash][GRGB_2_RGBG(c)] = get2();
      if (use_WBcorr_coeffs) {
        icWBC[LIBRAW_WBI_Flash][0] *= wbR_corr;
        icWBC[LIBRAW_WBI_Flash][2] *= wbB_corr;
      }
    }

    else if (tag == 0xc000) // RAFData
    {
      c = order;
      order = 0x4949;
      if (len > 20000)
      {
        tag = get4();
        if (tag > 10000)
        {
          imFuji.RAFDataVersion = tag >> 16;
          if (!imFuji.RAFDataVersion)
            imFuji.RAFDataVersion = tag;
          tag = get4();
        }
        if (tag > 10000)
        { // if it is >1000 it normally contains 0x53545257, "WRTS"
          tag = get4();
        }
        width = tag;
        height = get4();
        if (width > raw_width)
          width = raw_width;
        if (height > raw_height)
          height = raw_height;
      }
      if (len == 4096) // X-A3, X-A5, X-A7, X-A10, X-A20, X-T100, X-T200, XF10
      {                // Ill.A aligned to CCT 2850
        int wb[4];
        int nWB, tWB, pWB;
        int iCCT = 0;
        is_4K_RAFdata = 1;
        fseek(ifp, save + 0x200, SEEK_SET);
        for (int wb_ind = 0; wb_ind < 42; wb_ind++)
        {
          nWB = get4();
          tWB = get4();
          wb[0] = get4() << 1;
          wb[1] = get4();
          wb[3] = get4();
          wb[2] = get4() << 1;
          if (tWB && (iCCT < 255))
          {
            icWBCCTC[iCCT][0] = tWB;
            FORC4 icWBCCTC[iCCT][c + 1] = wb[c];
            iCCT++;
          }
          if (nWB != 70)
          {
            for (pWB = 1; pWB < Fuji_wb_list2.size(); pWB += 2)
            {
              if (Fuji_wb_list2[pWB] == nWB)
              {
                FORC4 icWBC[Fuji_wb_list2[pWB - 1]][c] =
                    wb[c];
                break;
              }
            }
          }
        }
      }
      else
      {
        libraw_internal_data.unpacker_data.posRAFData = save;
        libraw_internal_data.unpacker_data.lenRAFData = (len >> 1);
      }
      order = c;
    }
    fseek(ifp, save + len, SEEK_SET);
  }
  height <<= fuji_layout;
  width >>= fuji_layout;
}