LCOV - code coverage report
Current view: top level - frmts/idrisi - IdrisiDataset.cpp (source / functions) Hit Total Coverage
Test: gdal_filtered.info Lines: 537 1249 43.0 %
Date: 2025-05-31 00:00:17 Functions: 29 45 64.4 %

          Line data    Source code
       1             : /*****************************************************************************
       2             :  *
       3             :  * Project:  Idrisi Raster Image File Driver
       4             :  * Purpose:  Read/write Idrisi Raster Image Format RST
       5             :  * Author:   Ivan Lucena, [lucena_ivan at hotmail.com]
       6             :  *
       7             :  * Revised by Hongmei Zhu, February, 2013
       8             :  * honzhu@clarku.edu
       9             :  * Clark Labs/Clark University
      10             :  *
      11             :  ******************************************************************************
      12             :  * Copyright( c ) 2006, Ivan Lucena
      13             :  * Copyright (c) 2007-2012, Even Rouault <even dot rouault at spatialys.com>
      14             :  *
      15             :  * SPDX-License-Identifier: MIT
      16             :  ****************************************************************************/
      17             : 
      18             : #include "cpl_conv.h"
      19             : #include "cpl_string.h"
      20             : #include "cpl_csv.h"
      21             : #include "gdal_frmts.h"
      22             : #include "gdal_pam.h"
      23             : #include "gdal_alg.h"
      24             : #include "gdal_priv.h"
      25             : #include "gdal_rat.h"
      26             : #include "ogr_spatialref.h"
      27             : #include "idrisi.h"
      28             : 
      29             : #include "proj_experimental.h"
      30             : #include "ogr_proj_p.h"
      31             : 
      32             : #include <cmath>
      33             : 
      34             : #ifdef _WIN32
      35             : #define PATHDELIM '\\'
      36             : #else
      37             : #define PATHDELIM '/'
      38             : #endif
      39             : 
      40             : //----- Safe numeric conversion, NULL as zero
      41             : #define atoi_nz(s) (s == nullptr ? (int)0 : atoi(s))
      42             : #define CPLAtof_nz(s) (s == nullptr ? (double)0.0 : CPLAtof(s))
      43             : 
      44             : //----- file extensions:
      45             : static const char *const extRST = "rst";
      46             : static const char *const extRDC = "rdc";
      47             : static const char *const extSMP = "smp";
      48             : static const char *const extREF = "ref";
      49             : // static const char * const extRSTu        = "RST";
      50             : static const char *const extRDCu = "RDC";
      51             : static const char *const extSMPu = "SMP";
      52             : static const char *const extREFu = "REF";
      53             : 
      54             : //----- field names on rdc file:
      55             : static const char *const rdcFILE_FORMAT = "file format ";
      56             : static const char *const rdcFILE_TITLE = "file title  ";
      57             : static const char *const rdcDATA_TYPE = "data type   ";
      58             : static const char *const rdcFILE_TYPE = "file type   ";
      59             : static const char *const rdcCOLUMNS = "columns     ";
      60             : static const char *const rdcROWS = "rows        ";
      61             : static const char *const rdcREF_SYSTEM = "ref. system ";
      62             : static const char *const rdcREF_UNITS = "ref. units  ";
      63             : static const char *const rdcUNIT_DIST = "unit dist.  ";
      64             : static const char *const rdcMIN_X = "min. X      ";
      65             : static const char *const rdcMAX_X = "max. X      ";
      66             : static const char *const rdcMIN_Y = "min. Y      ";
      67             : static const char *const rdcMAX_Y = "max. Y      ";
      68             : static const char *const rdcPOSN_ERROR = "pos'n error ";
      69             : static const char *const rdcRESOLUTION = "resolution  ";
      70             : static const char *const rdcMIN_VALUE = "min. value  ";
      71             : static const char *const rdcMAX_VALUE = "max. value  ";
      72             : static const char *const rdcDISPLAY_MIN = "display min ";
      73             : static const char *const rdcDISPLAY_MAX = "display max ";
      74             : static const char *const rdcVALUE_UNITS = "value units ";
      75             : static const char *const rdcVALUE_ERROR = "value error ";
      76             : static const char *const rdcFLAG_VALUE = "flag value  ";
      77             : static const char *const rdcFLAG_DEFN = "flag def'n  ";
      78             : static const char *const rdcFLAG_DEFN2 = "flag def`n  ";
      79             : static const char *const rdcLEGEND_CATS = "legend cats ";
      80             : static const char *const rdcLINEAGES = "lineage     ";
      81             : static const char *const rdcCOMMENTS = "comment     ";
      82             : static const char *const rdcCODE_N = "code %6d ";
      83             : 
      84             : //----- ".ref" file field names:
      85             : static const char *const refREF_SYSTEM = "ref. system ";
      86             : static const char *const refREF_SYSTEM2 = "ref.system  ";
      87             : static const char *const refPROJECTION = "projection  ";
      88             : static const char *const refDATUM = "datum       ";
      89             : static const char *const refDELTA_WGS84 = "delta WGS84 ";
      90             : static const char *const refELLIPSOID = "ellipsoid   ";
      91             : static const char *const refMAJOR_SAX = "major s-ax  ";
      92             : static const char *const refMINOR_SAX = "minor s-ax  ";
      93             : static const char *const refORIGIN_LONG = "origin long ";
      94             : static const char *const refORIGIN_LAT = "origin lat  ";
      95             : static const char *const refORIGIN_X = "origin X    ";
      96             : static const char *const refORIGIN_Y = "origin Y    ";
      97             : static const char *const refSCALE_FAC = "scale fac   ";
      98             : static const char *const refUNITS = "units       ";
      99             : static const char *const refPARAMETERS = "parameters  ";
     100             : static const char *const refSTANDL_1 = "stand ln 1  ";
     101             : static const char *const refSTANDL_2 = "stand ln 2  ";
     102             : 
     103             : //----- standard values:
     104             : static const char *const rstVERSION = "Idrisi Raster A.1";
     105             : static const char *const rstBYTE = "byte";
     106             : static const char *const rstINTEGER = "integer";
     107             : static const char *const rstREAL = "real";
     108             : static const char *const rstRGB24 = "rgb24";
     109             : static const char *const rstDEGREE = "deg";
     110             : static const char *const rstMETER = "m";
     111             : static const char *const rstLATLONG = "latlong";
     112             : static const char *const rstLATLONG2 = "lat/long";
     113             : static const char *const rstPLANE = "plane";
     114             : static const char *const rstUTM = "utm-%d%c";
     115             : static const char *const rstSPC = "spc%2d%2s%d";
     116             : 
     117             : //----- palette file( .smp ) header size:
     118             : constexpr int smpHEADERSIZE = 18;
     119             : 
     120             : //----- check if file exists:
     121             : bool FileExists(const char *pszPath);
     122             : 
     123             : //----- Reference Table
     124             : struct ReferenceTab
     125             : {
     126             :     int nCode;
     127             :     const char *pszName;
     128             : };
     129             : 
     130             : //----- USA State's reference table to USGS PCS Code
     131             : constexpr ReferenceTab aoUSStateTable[] = {
     132             :     {101, "al"},  {201, "az"},  {301, "ar"},  {401, "ca"},  {501, "co"},
     133             :     {600, "ct"},  {700, "de"},  {901, "fl"},  {1001, "ga"}, {1101, "id"},
     134             :     {1201, "il"}, {1301, "in"}, {1401, "ia"}, {1501, "ks"}, {1601, "ky"},
     135             :     {1701, "la"}, {1801, "me"}, {1900, "md"}, {2001, "ma"}, {2111, "mi"},
     136             :     {2201, "mn"}, {2301, "ms"}, {2401, "mo"}, {2500, "mt"}, {2600, "ne"},
     137             :     {2701, "nv"}, {2800, "nh"}, {2900, "nj"}, {3001, "nm"}, {3101, "ny"},
     138             :     {3200, "nc"}, {3301, "nd"}, {3401, "oh"}, {3501, "ok"}, {3601, "or"},
     139             :     {3701, "pa"}, {3800, "ri"}, {3900, "sc"}, {4001, "sd"}, {4100, "tn"},
     140             :     {4201, "tx"}, {4301, "ut"}, {4400, "vt"}, {4501, "va"}, {4601, "wa"},
     141             :     {4701, "wv"}, {4801, "wv"}, {4901, "wy"}, {5001, "ak"}, {5101, "hi"},
     142             :     {5200, "pr"}};
     143             : 
     144             : //---- The origin table for USA State Plane Systems
     145             : struct OriginTab83
     146             : {
     147             :     double longitude;
     148             :     double latitude;
     149             :     const char *spcs;
     150             : };
     151             : 
     152             : constexpr int ORIGIN_COUNT = 148;
     153             : 
     154             : //---- USA State plane coordinate system in IDRISI
     155             : static const OriginTab83 SPCS83Origin[] = {
     156             :     {85.83, 30.50, "SPC83AL1"},  {87.50, 30.00, "SPC83AL2"},
     157             :     {176.00, 51.00, "SPC83AK0"}, {142.00, 54.00, "SPC83AK2"},
     158             :     {146.00, 54.00, "SPC83AK3"}, {150.00, 54.00, "SPC83AK4"},
     159             :     {154.00, 54.00, "SPC83AK5"}, {158.00, 54.00, "SPC83AK6"},
     160             :     {162.00, 54.00, "SPC83AK7"}, {166.00, 54.00, "SPC83AK8"},
     161             :     {170.00, 54.00, "SPC83AK9"}, {110.17, 31.00, "SPC83AZ1"},
     162             :     {111.92, 31.00, "SPC83AZ2"}, {113.75, 31.00, "SPC83AZ3"},
     163             :     {92.00, 34.33, "SPC83AR1"},  {92.00, 32.67, "SPC83AR2"},
     164             :     {122.00, 39.33, "SPC83CA1"}, {122.00, 37.67, "SPC83CA2"},
     165             :     {120.50, 36.50, "SPC83CA3"}, {119.00, 35.33, "SPC83CA4"},
     166             :     {118.00, 33.50, "SPC83CA5"}, {116.25, 32.17, "SPC83CA6"},
     167             :     {105.50, 39.33, "SPC83CO1"}, {105.50, 37.83, "SPC83CO2"},
     168             :     {105.50, 36.67, "SPC83CO3"}, {72.75, 40.83, "SPC83CT1"},
     169             :     {75.42, 38.00, "SPC83DE1"},  {81.00, 24.33, "SPC83FL1"},
     170             :     {82.00, 24.33, "SPC83FL2"},  {84.50, 29.00, "SPC83FL3"},
     171             :     {82.17, 30.00, "SPC83GA1"},  {84.17, 30.00, "SPC83GA2"},
     172             :     {155.50, 18.83, "SPC83HI1"}, {156.67, 20.33, "SPC83HI2"},
     173             :     {158.00, 21.17, "SPC83HI3"}, {159.50, 21.83, "SPC83HI4"},
     174             :     {160.17, 21.67, "SPC83HI5"}, {112.17, 41.67, "SPC83ID1"},
     175             :     {114.00, 41.67, "SPC83ID2"}, {115.75, 41.67, "SPC83ID3"},
     176             :     {88.33, 36.67, "SPC83IL1"},  {90.17, 36.67, "SPC83IL1"},
     177             :     {85.67, 37.50, "SPC83IN1"},  {87.08, 37.50, "SPC83IN2"},
     178             :     {93.50, 41.50, "SPC83IA1"},  {93.50, 40.00, "SPC83IA1"},
     179             :     {98.00, 38.33, "SPC83KS1"},  {98.50, 36.67, "SPC83KS2"},
     180             :     {84.25, 37.50, "SPC83KY1"},  {85.75, 36.33, "SPC83KY2"},
     181             :     {92.50, 30.50, "SPC83LA1"},  {91.33, 28.50, "SPC83LA2"},
     182             :     {91.33, 25.50, "SPC83LA3"},  {92.50, 30.67, "SPC27LA1"},  // NAD27 system
     183             :     {91.33, 28.67, "SPC27LA2"},  {91.33, 25.67, "SPC27LA3"},  //
     184             :     {68.50, 43.67, "SPC83ME1"},  {68.50, 43.83, "SPC27ME1"},  // NAD27
     185             :     {70.17, 42.83, "SPC83ME2"},  {77.00, 37.67, "SPC83MD1"},  //
     186             :     {77.00, 37.83, "SPC27MD1"},                               // NAD27
     187             :     {71.50, 41.00, "SPC83MA1"},  {70.50, 41.00, "SPC83MA2"},
     188             :     {87.00, 44.78, "SPC83MI1"},  {84.37, 43.32, "SPC83MI2"},
     189             :     {84.37, 41.50, "SPC83MI3"},  {84.33, 43.32, "SPC27MI2"},  // NAD27 L
     190             :     {84.33, 41.50, "SPC27MI3"},                               // NAD27 L
     191             :     {83.67, 41.50, "SPC27MI4"},                               // NAD27 TM
     192             :     {85.75, 41.50, "SPC27MI5"},                               // NAD27 TM
     193             :     {88.75, 41.50, "SPC27MI6"},                               // NAD27 TM
     194             :     {93.10, 46.50, "SPC83MN1"},  {94.25, 45.00, "SPC83MN2"},
     195             :     {94.00, 43.00, "SPC83MN3"},  {88.83, 29.50, "SPC83MS1"},
     196             :     {90.33, 29.50, "SPC83MS2"},  {88.83, 29.67, "SPC83MS1"},  // NAD27
     197             :     {90.33, 30.50, "SPC83MS2"},                               //
     198             :     {90.50, 35.83, "SPC83MO1"},  {92.50, 35.83, "SPC83MO2"},
     199             :     {94.50, 36.17, "SPC83MO3"},  {109.50, 44.25, "SPC83MT1"},
     200             :     {109.50, 47.00, "SPC27MT1"},                               // NAD27
     201             :     {109.50, 45.83, "SPC27MT2"}, {109.50, 44.00, "SPC27MT3"},  //
     202             :     {100.00, 39.83, "SPC83NE1"}, {115.58, 34.75, "SPC83NV1"},
     203             :     {116.67, 34.75, "SPC83NV2"}, {118.58, 34.75, "SPC83NV3"},
     204             :     {71.67, 42.50, "SPC83NH1"},  {74.50, 38.83, "SPC83NJ1"},
     205             :     {74.67, 38.83, "SPC27NJ1"},  // NAD27
     206             :     {104.33, 31.00, "SPC83NM1"}, {106.25, 31.00, "SPC83NM2"},
     207             :     {107.83, 31.00, "SPC83NM3"}, {74.50, 38.83, "SPC83NY1"},
     208             :     {76.58, 40.00, "SPC83NY2"},  {78.58, 40.00, "SPC83NY3"},
     209             :     {74.00, 40.17, "SPC83NY4"},  {74.33, 40.00, "SPC27NY1"},  // NAD27
     210             :     {74.00, 40.50, "SPC27NY4"},                               //
     211             :     {79.00, 33.75, "SPC83NC1"},  {100.50, 47.00, "SPC83ND1"},
     212             :     {100.50, 45.67, "SPC83ND2"}, {82.50, 39.67, "SPC83OH1"},
     213             :     {82.50, 38.00, "SPC83OH2"},  {98.00, 35.00, "SPC83OK1"},
     214             :     {98.00, 33.33, "SPC83OK2"},  {120.50, 43.67, "SPC83OR1"},
     215             :     {120.50, 41.67, "SPC83OR2"}, {77.75, 40.17, "SPC83PA1"},
     216             :     {77.75, 39.33, "SPC83PA2"},  {71.50, 41.08, "SPC83RI1"},
     217             :     {81.00, 31.83, "SPC83SC1"},  {81.00, 33.00, "SPC27SC1"},  // NAD27
     218             :     {81.00, 31.83, "SPC27SC2"},                               // NAD27
     219             :     {100.00, 43.83, "SPC83SD1"}, {100.33, 42.33, "SPC83SD2"},
     220             :     {86.00, 34.33, "SPC83TN1"},  {86.00, 34.67, "SPC27TN1"},  // NAD27
     221             :     {101.50, 34.00, "SPC83TX1"},                              //
     222             :     {98.50, 31.67, "SPC83TX2"},  {100.33, 29.67, "SPC83TX3"},
     223             :     {99.00, 27.83, "SPC83TX4"},  {98.50, 25.67, "SPC83TX5"},
     224             :     {97.50, 31.67, "SPC27TX2"},  // NAD27
     225             :     {111.50, 40.33, "SPC83UT1"}, {111.50, 38.33, "SPC83UT2"},
     226             :     {111.50, 36.67, "SPC83UT3"}, {72.50, 42.50, "SPC83VT1"},
     227             :     {78.50, 37.67, "SPC83VA1"},  {78.50, 36.33, "SPC83VA2"},
     228             :     {120.83, 47.00, "SPC83WA1"}, {120.50, 45.33, "SPC83WA2"},
     229             :     {79.50, 38.50, "SPC83WV1"},  {81.00, 37.00, "SPC83WV2"},
     230             :     {90.00, 45.17, "SPC83WI1"},  {90.00, 43.83, "SPC83WI2"},
     231             :     {90.00, 42.00, "SPC83WI3"},  {105.17, 40.50, "SPC83WY1"},
     232             :     {107.33, 40.50, "SPC83WY2"}, {108.75, 40.50, "SPC83WY3"},
     233             :     {110.08, 40.50, "SPC83WY4"}, {105.17, 40.67, "SPC27WY1"},  // NAD27
     234             :     {105.33, 40.67, "SPC27WY2"}, {108.75, 40.67, "SPC27WY3"},
     235             :     {110.08, 40.67, "SPC27WY4"},  //
     236             :     {66.43, 17.83, "SPC83PR1"}};
     237             : 
     238             : // Get IDRISI State Plane name by origin
     239             : char *GetSpcs(double dfLon, double dfLat);
     240             : 
     241             : // change NAD from 83 to 27
     242             : void NAD83to27(char *pszOutRef, char *pszInRef);
     243             : 
     244             : #define US_STATE_COUNT (sizeof(aoUSStateTable) / sizeof(ReferenceTab))
     245             : 
     246             : //----- Get the Code of a US State
     247             : int GetStateCode(const char *pszState);
     248             : 
     249             : //----- Get the state name of a Code
     250             : const char *GetStateName(int nCode);
     251             : 
     252             : //----- Conversion Table definition
     253             : struct ConversionTab
     254             : {
     255             :     const char *pszName;
     256             :     int nDefaultI;
     257             :     int nDefaultG;
     258             :     double dfConv;
     259             : };
     260             : 
     261             : //----- Linear Unit Conversion Table
     262             : static const ConversionTab aoLinearUnitsConv[] = {
     263             :     {"m", /*  0 */ 0, 1, 1.0},
     264             :     {SRS_UL_METER, /*  1 */ 0, 1, 1.0},
     265             :     {"meters", /*  2 */ 0, 1, 1.0},
     266             :     {"metre", /*  3 */ 0, 1, 1.0},
     267             : 
     268             :     {"ft", /*  4 */ 4, 5, 0.3048},
     269             :     {SRS_UL_FOOT, /*  5 */ 4, 5, 0.3048},
     270             :     {"feet", /*  6 */ 4, 5, 0.3048},
     271             :     {"foot_us", /*  7 */ 4, 5, 0.3048006},
     272             :     {"u.s. foot", /*  8 */ 4, 5, 0.3048006},
     273             : 
     274             :     {"mi", /*  9 */ 9, 10, 1612.9},
     275             :     {"mile", /* 10 */ 9, 10, 1612.9},
     276             :     {"miles", /* 11 */ 9, 10, 1612.9},
     277             : 
     278             :     {"km", /* 12 */ 12, 13, 1000.0},
     279             :     {"kilometers", /* 13 */ 12, 13, 1000.0},
     280             :     {"kilometer", /* 14 */ 12, 13, 1000.0},
     281             :     {"kilometre", /* 15 */ 12, 13, 1000.0},
     282             : 
     283             :     {"deg", /* 16 */ 16, 17, 0.0},
     284             :     {SRS_UA_DEGREE, /* 17 */ 16, 17, 0.0},
     285             :     {"degrees", /* 18 */ 16, 17, 0.0},
     286             : 
     287             :     {"rad", /* 19 */ 19, 20, 0.0},
     288             :     {SRS_UA_RADIAN, /* 20 */ 19, 20, 0.0},
     289             :     {"radians", /* 21 */ 19, 20, 0.0}};
     290             : #define LINEAR_UNITS_COUNT (sizeof(aoLinearUnitsConv) / sizeof(ConversionTab))
     291             : 
     292             : //----- Get the index of a given linear unit
     293             : static int GetUnitIndex(const char *pszUnitName);
     294             : 
     295             : //----- Get the default name
     296             : static char *GetUnitDefault(const char *pszUnitName,
     297             :                             const char *pszToMeter = nullptr);
     298             : 
     299             : //----- Get the "to meter"
     300             : static int GetToMeterIndex(const char *pszToMeter);
     301             : 
     302             : //----- CSLSaveCRLF
     303             : static int SaveAsCRLF(char **papszStrList, const char *pszFname);
     304             : 
     305             : /************************************************************************/
     306             : /*                     myCSLFetchNameValue()                            */
     307             : /************************************************************************/
     308             : 
     309        1192 : static const char *myCSLFetchNameValue(char **papszStrList, const char *pszName)
     310             : {
     311        1192 :     if (papszStrList == nullptr || pszName == nullptr)
     312           4 :         return nullptr;
     313             : 
     314        1188 :     size_t nLen = strlen(pszName);
     315        4541 :     while (nLen > 0 && pszName[nLen - 1] == ' ')
     316        3353 :         nLen--;
     317       20461 :     while (*papszStrList != nullptr)
     318             :     {
     319       20449 :         if (EQUALN(*papszStrList, pszName, nLen))
     320             :         {
     321             :             size_t i;
     322        4451 :             for (i = nLen; (*papszStrList)[i] == ' '; ++i)
     323             :             {
     324             :             }
     325        1176 :             if ((*papszStrList)[i] == '=' || (*papszStrList)[i] == ':')
     326             :             {
     327        1176 :                 return (*papszStrList) + i + 1;
     328             :             }
     329             :         }
     330       19273 :         ++papszStrList;
     331             :     }
     332          12 :     return nullptr;
     333             : }
     334             : 
     335             : /************************************************************************/
     336             : /*                   myCSLSetNameValueSeparator()                       */
     337             : /************************************************************************/
     338             : 
     339          86 : static void myCSLSetNameValueSeparator(char **papszList,
     340             :                                        const char *pszSeparator)
     341             : {
     342          86 :     const int nLines = CSLCount(papszList);
     343             : 
     344        1926 :     for (int iLine = 0; iLine < nLines; ++iLine)
     345             :     {
     346        1840 :         char *pszSep = strchr(papszList[iLine], '=');
     347        1840 :         if (pszSep == nullptr)
     348        1164 :             pszSep = strchr(papszList[iLine], ':');
     349        1840 :         if (pszSep == nullptr)
     350           0 :             continue;
     351        1840 :         *pszSep = '\0';
     352        1840 :         const char *pszKey = papszList[iLine];
     353        1840 :         const char *pszValue = pszSep + 1;
     354        2626 :         while (*pszValue == ' ')
     355         786 :             pszValue++;
     356             : 
     357        3680 :         char *pszNewLine = static_cast<char *>(CPLMalloc(
     358        1840 :             strlen(pszValue) + strlen(pszKey) + strlen(pszSeparator) + 1));
     359        1840 :         strcpy(pszNewLine, pszKey);
     360        1840 :         strcat(pszNewLine, pszSeparator);
     361        1840 :         strcat(pszNewLine, pszValue);
     362        1840 :         CPLFree(papszList[iLine]);
     363        1840 :         papszList[iLine] = pszNewLine;
     364             :     }
     365          86 : }
     366             : 
     367             : //----- Classes pre-definition:
     368             : class IdrisiRasterBand;
     369             : 
     370             : //  ----------------------------------------------------------------------------
     371             : //        Idrisi GDALDataset
     372             : //  ----------------------------------------------------------------------------
     373             : 
     374             : class IdrisiDataset final : public GDALPamDataset
     375             : {
     376             :     friend class IdrisiRasterBand;
     377             : 
     378             :   private:
     379             :     VSILFILE *fp;
     380             : 
     381             :     char *pszFilename;
     382             :     char *pszDocFilename;
     383             :     char **papszRDC;
     384             :     double adfGeoTransform[6];
     385             : 
     386             :     mutable OGRSpatialReference m_oSRS{};
     387             :     char **papszCategories;
     388             :     char *pszUnitType;
     389             :     // Move GeoReference2Wkt() into header file.
     390             :     CPLErr Wkt2GeoReference(const OGRSpatialReference &oSRS,
     391             :                             char **pszRefSystem, char **pszRefUnit);
     392             : 
     393             :   protected:
     394             :     GDALColorTable *poColorTable;
     395             : 
     396             :   public:
     397             :     IdrisiDataset();
     398             :     virtual ~IdrisiDataset();
     399             : 
     400             :     static GDALDataset *Open(GDALOpenInfo *poOpenInfo);
     401             :     static GDALDataset *Create(const char *pszFilename, int nXSize, int nYSize,
     402             :                                int nBands, GDALDataType eType,
     403             :                                char **papszOptions);
     404             :     static GDALDataset *CreateCopy(const char *pszFilename,
     405             :                                    GDALDataset *poSrcDS, int bStrict,
     406             :                                    char **papszOptions,
     407             :                                    GDALProgressFunc pfnProgress,
     408             :                                    void *pProgressData);
     409             :     virtual char **GetFileList(void) override;
     410             :     virtual CPLErr GetGeoTransform(double *padfTransform) override;
     411             :     virtual CPLErr SetGeoTransform(double *padfTransform) override;
     412             : 
     413             :     const OGRSpatialReference *GetSpatialRef() const override;
     414             :     CPLErr SetSpatialRef(const OGRSpatialReference *poSRS) override;
     415             : };
     416             : 
     417             : //  ----------------------------------------------------------------------------
     418             : //        Idrisi GDALPamRasterBand
     419             : //  ----------------------------------------------------------------------------
     420             : 
     421             : class IdrisiRasterBand final : public GDALPamRasterBand
     422             : {
     423             :     friend class IdrisiDataset;
     424             : 
     425             :     GDALRasterAttributeTable *poDefaultRAT;
     426             : 
     427             :   private:
     428             :     int nRecordSize;
     429             :     GByte *pabyScanLine;
     430             : 
     431             :   public:
     432             :     IdrisiRasterBand(IdrisiDataset *poDS, int nBand, GDALDataType eDataType);
     433             :     virtual ~IdrisiRasterBand();
     434             : 
     435             :     virtual double GetNoDataValue(int *pbSuccess = nullptr) override;
     436             :     virtual double GetMinimum(int *pbSuccess = nullptr) override;
     437             :     virtual double GetMaximum(int *pbSuccess = nullptr) override;
     438             :     virtual CPLErr IReadBlock(int nBlockXOff, int nBlockYOff,
     439             :                               void *pImage) override;
     440             :     virtual CPLErr IWriteBlock(int nBlockXOff, int nBlockYOff,
     441             :                                void *pImage) override;
     442             :     virtual GDALColorTable *GetColorTable() override;
     443             :     virtual GDALColorInterp GetColorInterpretation() override;
     444             :     virtual char **GetCategoryNames() override;
     445             :     virtual const char *GetUnitType() override;
     446             : 
     447             :     virtual CPLErr SetCategoryNames(char **papszCategoryNames) override;
     448             :     virtual CPLErr SetNoDataValue(double dfNoDataValue) override;
     449             :     virtual CPLErr SetColorTable(GDALColorTable *poColorTable) override;
     450             :     virtual CPLErr SetUnitType(const char *pszUnitType) override;
     451             :     virtual CPLErr SetStatistics(double dfMin, double dfMax, double dfMean,
     452             :                                  double dfStdDev) override;
     453             :     CPLErr SetMinMax(double dfMin, double dfMax);
     454             :     virtual GDALRasterAttributeTable *GetDefaultRAT() override;
     455             :     virtual CPLErr SetDefaultRAT(const GDALRasterAttributeTable *) override;
     456             : 
     457             :     float fMaximum;
     458             :     float fMinimum;
     459             :     bool bFirstVal;
     460             : };
     461             : 
     462             : //  ------------------------------------------------------------------------  //
     463             : //                        Implementation of IdrisiDataset                     //
     464             : //  ------------------------------------------------------------------------  //
     465             : 
     466             : /************************************************************************/
     467             : /*                           IdrisiDataset()                            */
     468             : /************************************************************************/
     469             : 
     470          36 : IdrisiDataset::IdrisiDataset()
     471             :     : fp(nullptr), pszFilename(nullptr), pszDocFilename(nullptr),
     472             :       papszRDC(nullptr), papszCategories(nullptr), pszUnitType(nullptr),
     473          36 :       poColorTable(new GDALColorTable())
     474             : {
     475          36 :     m_oSRS.SetAxisMappingStrategy(OAMS_TRADITIONAL_GIS_ORDER);
     476          36 :     adfGeoTransform[0] = 0.0;
     477          36 :     adfGeoTransform[1] = 1.0;
     478          36 :     adfGeoTransform[2] = 0.0;
     479          36 :     adfGeoTransform[3] = 0.0;
     480          36 :     adfGeoTransform[4] = 0.0;
     481          36 :     adfGeoTransform[5] = 1.0;
     482          36 : }
     483             : 
     484             : /************************************************************************/
     485             : /*                           ~IdrisiDataset()                           */
     486             : /************************************************************************/
     487             : 
     488          72 : IdrisiDataset::~IdrisiDataset()
     489             : {
     490          36 :     FlushCache(true);
     491             : 
     492          36 :     if (papszRDC != nullptr && eAccess == GA_Update)
     493             :     {
     494             :         // int bSuccessMin = FALSE;
     495             :         // int bSuccessMax = FALSE;
     496             : 
     497          20 :         double dfMin = 0.0;
     498          20 :         double dfMax = 0.0;
     499          20 :         double dfMean = 0.0;
     500          20 :         double dfStdDev = 0.0;
     501             : 
     502          40 :         for (int i = 0; i < nBands; i++)
     503             :         {
     504             :             IdrisiRasterBand *poBand =
     505          20 :                 cpl::down_cast<IdrisiRasterBand *>(GetRasterBand(i + 1));
     506          20 :             poBand->ComputeStatistics(false, &dfMin, &dfMax, &dfMean, &dfStdDev,
     507          20 :                                       nullptr, nullptr);
     508             :             /*
     509             :               dfMin = poBand->GetMinimum( &bSuccessMin );
     510             :               dfMax = poBand->GetMaximum( &bSuccessMax );
     511             : 
     512             :               if( ! ( bSuccessMin && bSuccessMax ) )
     513             :               {
     514             :               poBand->GetStatistics( false, true, &dfMin, &dfMax, NULL, NULL );
     515             :               }
     516             :             */
     517          20 :             poBand->SetMinMax(dfMin, dfMax);
     518             :         }
     519             : 
     520          20 :         myCSLSetNameValueSeparator(papszRDC, ": ");
     521          20 :         SaveAsCRLF(papszRDC, pszDocFilename);
     522             :     }
     523          36 :     CSLDestroy(papszRDC);
     524             : 
     525          36 :     if (poColorTable)
     526             :     {
     527          36 :         delete poColorTable;
     528             :     }
     529          36 :     CPLFree(pszFilename);
     530          36 :     CPLFree(pszDocFilename);
     531          36 :     CSLDestroy(papszCategories);
     532          36 :     CPLFree(pszUnitType);
     533             : 
     534          36 :     if (fp != nullptr)
     535          36 :         VSIFCloseL(fp);
     536          72 : }
     537             : 
     538             : /************************************************************************/
     539             : /*                                Open()                                */
     540             : /************************************************************************/
     541             : 
     542       34168 : GDALDataset *IdrisiDataset::Open(GDALOpenInfo *poOpenInfo)
     543             : {
     544       38368 :     if ((poOpenInfo->fpL == nullptr) ||
     545        4200 :         (poOpenInfo->IsExtensionEqualToCI(extRST) == FALSE))  // modified
     546       34127 :         return nullptr;
     547             : 
     548             :     // --------------------------------------------------------------------
     549             :     //      Check the documentation file .rdc
     550             :     // --------------------------------------------------------------------
     551             : 
     552             :     std::string osLDocFilename =
     553          81 :         CPLResetExtensionSafe(poOpenInfo->pszFilename, extRDC);
     554             : 
     555          40 :     if (!FileExists(osLDocFilename.c_str()))
     556             :     {
     557             :         osLDocFilename =
     558           0 :             CPLResetExtensionSafe(poOpenInfo->pszFilename, extRDCu);
     559             : 
     560           0 :         if (!FileExists(osLDocFilename.c_str()))
     561             :         {
     562           0 :             return nullptr;
     563             :         }
     564             :     }
     565             : 
     566          40 :     char **papszLRDC = CSLLoad(osLDocFilename.c_str());
     567             : 
     568          40 :     myCSLSetNameValueSeparator(papszLRDC, ":");
     569             : 
     570          40 :     const char *pszVersion = myCSLFetchNameValue(papszLRDC, rdcFILE_FORMAT);
     571             : 
     572          40 :     if (pszVersion == nullptr || !EQUAL(pszVersion, rstVERSION))
     573             :     {
     574           4 :         CSLDestroy(papszLRDC);
     575           4 :         return nullptr;
     576             :     }
     577             : 
     578             :     // --------------------------------------------------------------------
     579             :     //      Create a corresponding GDALDataset
     580             :     // --------------------------------------------------------------------
     581             : 
     582          36 :     IdrisiDataset *poDS = new IdrisiDataset();
     583          36 :     poDS->eAccess = poOpenInfo->eAccess;
     584          36 :     poDS->pszFilename = CPLStrdup(poOpenInfo->pszFilename);
     585             : 
     586          36 :     if (poOpenInfo->eAccess == GA_ReadOnly)
     587             :     {
     588          16 :         poDS->fp = VSIFOpenL(poDS->pszFilename, "rb");
     589             :     }
     590             :     else
     591             :     {
     592          20 :         poDS->fp = VSIFOpenL(poDS->pszFilename, "r+b");
     593             :     }
     594             : 
     595          36 :     if (poDS->fp == nullptr)
     596             :     {
     597           0 :         CSLDestroy(papszLRDC);
     598           0 :         delete poDS;
     599           0 :         return nullptr;
     600             :     }
     601             : 
     602          36 :     poDS->pszDocFilename = CPLStrdup(osLDocFilename.c_str());
     603          36 :     poDS->papszRDC = CSLDuplicate(papszLRDC);
     604          36 :     CSLDestroy(papszLRDC);
     605             : 
     606             :     // --------------------------------------------------------------------
     607             :     //      Load information from rdc
     608             :     // --------------------------------------------------------------------
     609             : 
     610          36 :     poDS->nRasterXSize =
     611          36 :         atoi_nz(myCSLFetchNameValue(poDS->papszRDC, rdcCOLUMNS));
     612          36 :     poDS->nRasterYSize = atoi_nz(myCSLFetchNameValue(poDS->papszRDC, rdcROWS));
     613          36 :     if (!GDALCheckDatasetDimensions(poDS->nRasterXSize, poDS->nRasterYSize))
     614             :     {
     615           6 :         delete poDS;
     616           6 :         return nullptr;
     617             :     }
     618             : 
     619             :     // --------------------------------------------------------------------
     620             :     //      Create band information
     621             :     // --------------------------------------------------------------------
     622             : 
     623          30 :     const char *pszDataType = myCSLFetchNameValue(poDS->papszRDC, rdcDATA_TYPE);
     624          30 :     if (pszDataType == nullptr)
     625             :     {
     626           0 :         delete poDS;
     627           0 :         return nullptr;
     628             :     }
     629             : 
     630          30 :     if (EQUAL(pszDataType, rstBYTE))
     631             :     {
     632           5 :         poDS->nBands = 1;
     633           5 :         poDS->SetBand(1, new IdrisiRasterBand(poDS, 1, GDT_Byte));
     634             :     }
     635          25 :     else if (EQUAL(pszDataType, rstINTEGER))
     636             :     {
     637           9 :         poDS->nBands = 1;
     638           9 :         poDS->SetBand(1, new IdrisiRasterBand(poDS, 1, GDT_Int16));
     639             :     }
     640          16 :     else if (EQUAL(pszDataType, rstREAL))
     641             :     {
     642          10 :         poDS->nBands = 1;
     643          10 :         poDS->SetBand(1, new IdrisiRasterBand(poDS, 1, GDT_Float32));
     644             :     }
     645           6 :     else if (EQUAL(pszDataType, rstRGB24))
     646             :     {
     647           6 :         poDS->nBands = 3;
     648           6 :         poDS->SetBand(1, new IdrisiRasterBand(poDS, 1, GDT_Byte));
     649           6 :         poDS->SetBand(2, new IdrisiRasterBand(poDS, 2, GDT_Byte));
     650           6 :         poDS->SetBand(3, new IdrisiRasterBand(poDS, 3, GDT_Byte));
     651             :     }
     652             :     else
     653             :     {
     654           0 :         CPLError(CE_Failure, CPLE_AppDefined, "Unknown data type : %s",
     655             :                  pszDataType);
     656           0 :         delete poDS;
     657           0 :         return nullptr;
     658             :     }
     659             : 
     660          72 :     for (int i = 0; i < poDS->nBands; i++)
     661             :     {
     662             :         IdrisiRasterBand *band =
     663          42 :             cpl::down_cast<IdrisiRasterBand *>(poDS->GetRasterBand(i + 1));
     664          42 :         if (band->pabyScanLine == nullptr)
     665             :         {
     666           0 :             delete poDS;
     667           0 :             return nullptr;
     668             :         }
     669             :     }
     670             : 
     671             :     // --------------------------------------------------------------------
     672             :     //      Load the transformation matrix
     673             :     // --------------------------------------------------------------------
     674             : 
     675          30 :     const char *pszMinX = myCSLFetchNameValue(poDS->papszRDC, rdcMIN_X);
     676          30 :     const char *pszMaxX = myCSLFetchNameValue(poDS->papszRDC, rdcMAX_X);
     677          30 :     const char *pszMinY = myCSLFetchNameValue(poDS->papszRDC, rdcMIN_Y);
     678          30 :     const char *pszMaxY = myCSLFetchNameValue(poDS->papszRDC, rdcMAX_Y);
     679          30 :     const char *pszUnit = myCSLFetchNameValue(poDS->papszRDC, rdcUNIT_DIST);
     680             : 
     681          30 :     if (pszMinX != nullptr && strlen(pszMinX) > 0 && pszMaxX != nullptr &&
     682          30 :         strlen(pszMaxX) > 0 && pszMinY != nullptr && strlen(pszMinY) > 0 &&
     683          30 :         pszMaxY != nullptr && strlen(pszMaxY) > 0 && pszUnit != nullptr &&
     684          30 :         strlen(pszUnit) > 0)
     685             :     {
     686             :         double dfMinX, dfMaxX, dfMinY, dfMaxY, dfUnit, dfXPixSz, dfYPixSz;
     687             : 
     688          30 :         dfMinX = CPLAtof_nz(pszMinX);
     689          30 :         dfMaxX = CPLAtof_nz(pszMaxX);
     690          30 :         dfMinY = CPLAtof_nz(pszMinY);
     691          30 :         dfMaxY = CPLAtof_nz(pszMaxY);
     692          30 :         dfUnit = CPLAtof_nz(pszUnit);
     693             : 
     694          30 :         dfMinX = dfMinX * dfUnit;
     695          30 :         dfMaxX = dfMaxX * dfUnit;
     696          30 :         dfMinY = dfMinY * dfUnit;
     697          30 :         dfMaxY = dfMaxY * dfUnit;
     698             : 
     699          30 :         dfYPixSz = (dfMinY - dfMaxY) / poDS->nRasterYSize;
     700          30 :         dfXPixSz = (dfMaxX - dfMinX) / poDS->nRasterXSize;
     701             : 
     702          30 :         poDS->adfGeoTransform[0] = dfMinX;
     703          30 :         poDS->adfGeoTransform[1] = dfXPixSz;
     704          30 :         poDS->adfGeoTransform[2] = 0.0;
     705          30 :         poDS->adfGeoTransform[3] = dfMaxY;
     706          30 :         poDS->adfGeoTransform[4] = 0.0;
     707          30 :         poDS->adfGeoTransform[5] = dfYPixSz;
     708             :     }
     709             : 
     710             :     // --------------------------------------------------------------------
     711             :     //      Set Color Table in the presence of a smp file
     712             :     // --------------------------------------------------------------------
     713             : 
     714          30 :     if (poDS->nBands != 3)
     715             :     {
     716             :         const std::string osSMPFilename =
     717          48 :             CPLResetExtensionSafe(poDS->pszFilename, extSMP);
     718          24 :         VSILFILE *fpSMP = VSIFOpenL(osSMPFilename.c_str(), "rb");
     719          24 :         if (fpSMP != nullptr)
     720             :         {
     721             :             int dfMaxValue =
     722           0 :                 atoi_nz(myCSLFetchNameValue(poDS->papszRDC, rdcMAX_VALUE));
     723             :             int nCatCount =
     724           0 :                 atoi_nz(myCSLFetchNameValue(poDS->papszRDC, rdcLEGEND_CATS));
     725           0 :             if (nCatCount == 0)
     726           0 :                 dfMaxValue = 255;
     727           0 :             VSIFSeekL(fpSMP, smpHEADERSIZE, SEEK_SET);
     728             :             GDALColorEntry oEntry;
     729             :             unsigned char aucRGB[3];
     730           0 :             int i = 0;
     731           0 :             while ((VSIFReadL(&aucRGB, sizeof(aucRGB), 1, fpSMP)) &&
     732             :                    (i <= dfMaxValue))
     733             :             {
     734           0 :                 oEntry.c1 = (short)aucRGB[0];
     735           0 :                 oEntry.c2 = (short)aucRGB[1];
     736           0 :                 oEntry.c3 = (short)aucRGB[2];
     737           0 :                 oEntry.c4 = (short)255;
     738           0 :                 poDS->poColorTable->SetColorEntry(i, &oEntry);
     739           0 :                 i++;
     740             :             }
     741           0 :             VSIFCloseL(fpSMP);
     742             :         }
     743             :     }
     744             : 
     745             :     // --------------------------------------------------------------------
     746             :     //      Check for Unit Type
     747             :     // --------------------------------------------------------------------
     748             : 
     749             :     const char *pszValueUnit =
     750          30 :         myCSLFetchNameValue(poDS->papszRDC, rdcVALUE_UNITS);
     751             : 
     752          30 :     if (pszValueUnit == nullptr)
     753           0 :         poDS->pszUnitType = CPLStrdup("unspecified");
     754             :     else
     755             :     {
     756          30 :         if (STARTS_WITH_CI(pszValueUnit, "meter"))
     757             :         {
     758           0 :             poDS->pszUnitType = CPLStrdup("m");
     759             :         }
     760          30 :         else if (STARTS_WITH_CI(pszValueUnit, "feet"))
     761             :         {
     762           0 :             poDS->pszUnitType = CPLStrdup("ft");
     763             :         }
     764             :         else
     765          30 :             poDS->pszUnitType = CPLStrdup(pszValueUnit);
     766             :     }
     767             : 
     768             :     // --------------------------------------------------------------------
     769             :     //      Check for category names.
     770             :     // --------------------------------------------------------------------
     771             : 
     772             :     int nCatCount =
     773          30 :         atoi_nz(myCSLFetchNameValue(poDS->papszRDC, rdcLEGEND_CATS));
     774             : 
     775          30 :     if (nCatCount > 0)
     776             :     {
     777             :         // ----------------------------------------------------------------
     778             :         //      Sequentialize categories names, from 0 to the last "code n"
     779             :         // ----------------------------------------------------------------
     780             : 
     781           0 :         int nLine = -1;
     782           0 :         for (int i = 0; (i < CSLCount(poDS->papszRDC)) && (nLine == -1); i++)
     783           0 :             if (EQUALN(poDS->papszRDC[i], rdcLEGEND_CATS, 11))
     784           0 :                 nLine = i;  // get the line where legend cats is
     785             : 
     786           0 :         if (nLine > 0)
     787             :         {
     788           0 :             int nCode = 0;
     789           0 :             int nCount = 0;
     790           0 :             sscanf(poDS->papszRDC[++nLine], rdcCODE_N,
     791             :                    &nCode);  // assign legend cats to nCode
     792           0 :             for (int i = 0; (i < 255) && (nCount < nCatCount); i++)
     793             :             {
     794           0 :                 if (i == nCode)
     795             :                 {
     796           0 :                     poDS->papszCategories = CSLAddString(
     797             :                         poDS->papszCategories,
     798           0 :                         CPLParseNameValue(poDS->papszRDC[nLine], nullptr));
     799           0 :                     nCount++;
     800           0 :                     if (nCount < nCatCount)
     801           0 :                         sscanf(poDS->papszRDC[++nLine], rdcCODE_N, &nCode);
     802             :                 }
     803             :                 else
     804           0 :                     poDS->papszCategories =
     805           0 :                         CSLAddString(poDS->papszCategories, "");
     806             :             }
     807             :         }
     808             :     }
     809             : 
     810             :     /* -------------------------------------------------------------------- */
     811             :     /*      Automatic Generated Color Table                                 */
     812             :     /* -------------------------------------------------------------------- */
     813             : 
     814          30 :     if (poDS->papszCategories != nullptr &&
     815           0 :         (poDS->poColorTable->GetColorEntryCount() == 0))
     816             :     {
     817           0 :         int nEntryCount = CSLCount(poDS->papszCategories);
     818             : 
     819             :         GDALColorEntry sFromColor;
     820           0 :         sFromColor.c1 = (short)(255);
     821           0 :         sFromColor.c2 = (short)(0);
     822           0 :         sFromColor.c3 = (short)(0);
     823           0 :         sFromColor.c4 = (short)(255);
     824             : 
     825             :         GDALColorEntry sToColor;
     826           0 :         sToColor.c1 = (short)(0);
     827           0 :         sToColor.c2 = (short)(0);
     828           0 :         sToColor.c3 = (short)(255);
     829           0 :         sToColor.c4 = (short)(255);
     830             : 
     831           0 :         poDS->poColorTable->CreateColorRamp(0, &sFromColor, (nEntryCount - 1),
     832             :                                             &sToColor);
     833             :     }
     834             : 
     835             :     /* -------------------------------------------------------------------- */
     836             :     /*      Initialize any PAM information.                                 */
     837             :     /* -------------------------------------------------------------------- */
     838             : 
     839          30 :     poDS->SetDescription(poOpenInfo->pszFilename);
     840          30 :     poDS->TryLoadXML();
     841             : 
     842             :     /* -------------------------------------------------------------------- */
     843             :     /*      Check for external overviews.                                   */
     844             :     /* -------------------------------------------------------------------- */
     845             : 
     846          30 :     poDS->oOvManager.Initialize(poDS, poOpenInfo->pszFilename);
     847             : 
     848          30 :     return poDS;
     849             : }
     850             : 
     851             : /************************************************************************/
     852             : /*                               Create()                               */
     853             : /************************************************************************/
     854             : 
     855          50 : GDALDataset *IdrisiDataset::Create(const char *pszFilename, int nXSize,
     856             :                                    int nYSize, int nBandsIn, GDALDataType eType,
     857             :                                    char ** /* papszOptions */)
     858             : {
     859             :     // --------------------------------------------------------------------
     860             :     //      Check input options
     861             :     // --------------------------------------------------------------------
     862             : 
     863          50 :     if (nBandsIn != 1 && nBandsIn != 3)
     864             :     {
     865           4 :         CPLError(CE_Failure, CPLE_AppDefined,
     866             :                  "Attempt to create IDRISI dataset with an illegal number of "
     867             :                  "bands(%d)."
     868             :                  " Try again by selecting a specific band if possible. \n",
     869             :                  nBandsIn);
     870           4 :         return nullptr;
     871             :     }
     872             : 
     873          46 :     if (nBandsIn == 3 && eType != GDT_Byte)
     874             :     {
     875          13 :         CPLError(
     876             :             CE_Failure, CPLE_AppDefined,
     877             :             "Attempt to create IDRISI dataset with an unsupported combination "
     878             :             "of the number of bands(%d) and data type(%s). \n",
     879             :             nBandsIn, GDALGetDataTypeName(eType));
     880          13 :         return nullptr;
     881             :     }
     882             : 
     883             :     // ----------------------------------------------------------------
     884             :     //  Create the header file with minimum information
     885             :     // ----------------------------------------------------------------
     886             : 
     887          33 :     const char *pszLDataType = nullptr;
     888             : 
     889          33 :     switch (eType)
     890             :     {
     891          17 :         case GDT_Byte:
     892          17 :             if (nBandsIn == 1)
     893          14 :                 pszLDataType = rstBYTE;
     894             :             else
     895           3 :                 pszLDataType = rstRGB24;
     896          17 :             break;
     897           2 :         case GDT_Int16:
     898           2 :             pszLDataType = rstINTEGER;
     899           2 :             break;
     900           3 :         case GDT_Float32:
     901           3 :             pszLDataType = rstREAL;
     902           3 :             break;
     903             :         //--- process compatible data types
     904           1 :         case (GDT_UInt16):
     905           1 :             pszLDataType = rstINTEGER;
     906           1 :             CPLError(CE_Warning, CPLE_AppDefined,
     907             :                      "This process requires a conversion from %s to signed "
     908             :                      "16-bit %s, "
     909             :                      "which may cause data loss.\n",
     910             :                      GDALGetDataTypeName(eType), rstINTEGER);
     911           1 :             break;
     912           1 :         case GDT_UInt32:
     913           1 :             pszLDataType = rstINTEGER;
     914           1 :             CPLError(CE_Warning, CPLE_AppDefined,
     915             :                      "This process requires a conversion from %s to signed "
     916             :                      "16-bit %s, "
     917             :                      "which may cause data loss.\n",
     918             :                      GDALGetDataTypeName(eType), rstINTEGER);
     919           1 :             break;
     920           1 :         case GDT_Int32:
     921           1 :             pszLDataType = rstINTEGER;
     922           1 :             CPLError(CE_Warning, CPLE_AppDefined,
     923             :                      "This process requires a conversion from %s to signed "
     924             :                      "16-bit %s, "
     925             :                      "which may cause data loss.\n",
     926             :                      GDALGetDataTypeName(eType), rstINTEGER);
     927           1 :             break;
     928           1 :         case GDT_Float64:
     929           1 :             pszLDataType = rstREAL;
     930           1 :             CPLError(CE_Warning, CPLE_AppDefined,
     931             :                      "This process requires a conversion from %s to float "
     932             :                      "32-bit %s, "
     933             :                      "which may cause data loss.\n",
     934             :                      GDALGetDataTypeName(eType), rstREAL);
     935           1 :             break;
     936           7 :         default:
     937           7 :             CPLError(CE_Failure, CPLE_AppDefined,
     938             :                      "Attempt to create IDRISI dataset with an illegal "
     939             :                      "data type(%s).\n",
     940             :                      GDALGetDataTypeName(eType));
     941           7 :             return nullptr;
     942             :     };
     943             : 
     944          26 :     char **papszLRDC = nullptr;
     945          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcFILE_FORMAT, rstVERSION);
     946          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcFILE_TITLE, "");
     947          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcDATA_TYPE, pszLDataType);
     948          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcFILE_TYPE, "binary");
     949             :     papszLRDC =
     950          26 :         CSLAddNameValue(papszLRDC, rdcCOLUMNS, CPLSPrintf("%d", nXSize));
     951          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcROWS, CPLSPrintf("%d", nYSize));
     952          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcREF_SYSTEM, "plane");
     953          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcREF_UNITS, "m");
     954          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcUNIT_DIST, "1");
     955          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcMIN_X, "0");
     956          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcMAX_X, CPLSPrintf("%d", nXSize));
     957          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcMIN_Y, "0");
     958          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcMAX_Y, CPLSPrintf("%d", nYSize));
     959          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcPOSN_ERROR, "unspecified");
     960          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcRESOLUTION, "1.0");
     961          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcMIN_VALUE, "0");
     962          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcMAX_VALUE, "0");
     963          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcDISPLAY_MIN, "0");
     964          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcDISPLAY_MAX, "0");
     965          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcVALUE_UNITS, "unspecified");
     966          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcVALUE_ERROR, "unspecified");
     967          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcFLAG_VALUE, "none");
     968          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcFLAG_DEFN, "none");
     969          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcLEGEND_CATS, "0");
     970          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcLINEAGES, "");
     971          26 :     papszLRDC = CSLAddNameValue(papszLRDC, rdcCOMMENTS, "");
     972             : 
     973             :     const std::string osLDocFilename =
     974          52 :         CPLResetExtensionSafe(pszFilename, extRDC);
     975             : 
     976          26 :     myCSLSetNameValueSeparator(papszLRDC, ": ");
     977          26 :     SaveAsCRLF(papszLRDC, osLDocFilename.c_str());
     978          26 :     CSLDestroy(papszLRDC);
     979             : 
     980             :     // ----------------------------------------------------------------
     981             :     //  Create an empty data file
     982             :     // ----------------------------------------------------------------
     983             : 
     984          26 :     VSILFILE *fp = VSIFOpenL(pszFilename, "wb+");
     985             : 
     986          26 :     if (fp == nullptr)
     987             :     {
     988           2 :         CPLError(CE_Failure, CPLE_OpenFailed,
     989             :                  "Attempt to create file %s' failed.\n", pszFilename);
     990           2 :         return nullptr;
     991             :     }
     992             : 
     993          36 :     const int nTargetDTSize = EQUAL(pszLDataType, rstBYTE)      ? 1
     994          19 :                               : EQUAL(pszLDataType, rstINTEGER) ? 2
     995           7 :                               : EQUAL(pszLDataType, rstRGB24)   ? 3
     996             :                                                                 : 4;
     997          24 :     VSIFTruncateL(fp,
     998          24 :                   static_cast<vsi_l_offset>(nXSize) * nYSize * nTargetDTSize);
     999          24 :     VSIFCloseL(fp);
    1000             : 
    1001          24 :     return (IdrisiDataset *)GDALOpen(pszFilename, GA_Update);
    1002             : }
    1003             : 
    1004             : /************************************************************************/
    1005             : /*                             CreateCopy()                             */
    1006             : /************************************************************************/
    1007             : 
    1008          29 : GDALDataset *IdrisiDataset::CreateCopy(const char *pszFilename,
    1009             :                                        GDALDataset *poSrcDS, int bStrict,
    1010             :                                        char **papszOptions,
    1011             :                                        GDALProgressFunc pfnProgress,
    1012             :                                        void *pProgressData)
    1013             : {
    1014          29 :     if (!pfnProgress(0.0, nullptr, pProgressData))
    1015           0 :         return nullptr;
    1016             : 
    1017             :     // ------------------------------------------------------------------------
    1018             :     //      Check number of bands
    1019             :     // ------------------------------------------------------------------------
    1020          29 :     if (!(poSrcDS->GetRasterCount() == 1) && !(poSrcDS->GetRasterCount() == 3))
    1021             :     {
    1022           4 :         CPLError(CE_Failure, CPLE_AppDefined,
    1023             :                  "Attempt to create IDRISI dataset with an illegal number of "
    1024             :                  "bands(%d)."
    1025             :                  " Try again by selecting a specific band if possible.\n",
    1026             :                  poSrcDS->GetRasterCount());
    1027           4 :         return nullptr;
    1028             :     }
    1029          27 :     if ((poSrcDS->GetRasterCount() == 3) &&
    1030           2 :         ((poSrcDS->GetRasterBand(1)->GetRasterDataType() != GDT_Byte) ||
    1031           2 :          (poSrcDS->GetRasterBand(2)->GetRasterDataType() != GDT_Byte) ||
    1032           2 :          (poSrcDS->GetRasterBand(3)->GetRasterDataType() != GDT_Byte)))
    1033             :     {
    1034           0 :         CPLError(
    1035             :             CE_Failure, CPLE_AppDefined,
    1036             :             "Attempt to create IDRISI dataset with an unsupported "
    1037             :             "data type when there are three bands. Only BYTE allowed.\n"
    1038             :             "Try again by selecting a specific band to convert if possible.\n");
    1039           0 :         return nullptr;
    1040             :     }
    1041             : 
    1042             :     // ------------------------------------------------------------------------
    1043             :     //      Check Data types
    1044             :     // ------------------------------------------------------------------------
    1045             : 
    1046          46 :     for (int i = 1; i <= poSrcDS->GetRasterCount(); i++)
    1047             :     {
    1048          29 :         GDALDataType eType = poSrcDS->GetRasterBand(i)->GetRasterDataType();
    1049             : 
    1050          29 :         if (bStrict)
    1051             :         {
    1052          25 :             if (eType != GDT_Byte && eType != GDT_Int16 && eType != GDT_Float32)
    1053             :             {
    1054           8 :                 CPLError(CE_Failure, CPLE_AppDefined,
    1055             :                          "Attempt to create IDRISI dataset in strict mode "
    1056             :                          "with an illegal data type(%s).\n",
    1057             :                          GDALGetDataTypeName(eType));
    1058           8 :                 return nullptr;
    1059             :             }
    1060             :         }
    1061             :         else
    1062             :         {
    1063           4 :             if (eType != GDT_Byte && eType != GDT_Int16 &&
    1064           0 :                 eType != GDT_UInt16 && eType != GDT_UInt32 &&
    1065           0 :                 eType != GDT_Int32 && eType != GDT_Float32 &&
    1066             :                 eType != GDT_Float64)
    1067             :             {
    1068           0 :                 CPLError(CE_Failure, CPLE_AppDefined,
    1069             :                          "Attempt to create IDRISI dataset with an illegal "
    1070             :                          "data type(%s).\n",
    1071             :                          GDALGetDataTypeName(eType));
    1072           0 :                 return nullptr;
    1073             :             }
    1074             :         }
    1075             :     }
    1076             : 
    1077             :     // --------------------------------------------------------------------
    1078             :     //      Define data type
    1079             :     // --------------------------------------------------------------------
    1080             : 
    1081          17 :     GDALRasterBand *poBand = poSrcDS->GetRasterBand(1);
    1082          17 :     GDALDataType eType = poBand->GetRasterDataType();
    1083             : 
    1084          17 :     int bSuccessMin = FALSE;
    1085          17 :     int bSuccessMax = FALSE;
    1086             : 
    1087          17 :     double dfMin = poBand->GetMinimum(&bSuccessMin);
    1088          17 :     double dfMax = poBand->GetMaximum(&bSuccessMax);
    1089             : 
    1090          17 :     if (!(bSuccessMin && bSuccessMax))
    1091             :     {
    1092           6 :         poBand->GetStatistics(false, true, &dfMin, &dfMax, nullptr, nullptr);
    1093             :     }
    1094             : 
    1095          17 :     if (!((eType == GDT_Byte) || (eType == GDT_Int16) ||
    1096             :           (eType == GDT_Float32)))
    1097             :     {
    1098           0 :         if (eType == GDT_Float64)
    1099             :         {
    1100           0 :             eType = GDT_Float32;
    1101             :         }
    1102             :         else
    1103             :         {
    1104           0 :             if ((dfMin < (double)SHRT_MIN) || (dfMax > (double)SHRT_MAX))
    1105             :             {
    1106           0 :                 eType = GDT_Float32;
    1107             :             }
    1108             :             else
    1109             :             {
    1110           0 :                 eType = GDT_Int16;
    1111             :             }
    1112             :         }
    1113             :     }
    1114             : 
    1115             :     // --------------------------------------------------------------------
    1116             :     //      Create the dataset
    1117             :     // --------------------------------------------------------------------
    1118             : 
    1119          17 :     IdrisiDataset *poDS = cpl::down_cast<IdrisiDataset *>(IdrisiDataset::Create(
    1120             :         pszFilename, poSrcDS->GetRasterXSize(), poSrcDS->GetRasterYSize(),
    1121             :         poSrcDS->GetRasterCount(), eType, papszOptions));
    1122             : 
    1123          17 :     if (poDS == nullptr)
    1124          12 :         return nullptr;
    1125             : 
    1126             :     // --------------------------------------------------------------------
    1127             :     //      Copy information to the dataset
    1128             :     // --------------------------------------------------------------------
    1129             : 
    1130             :     double adfGeoTransform[6];
    1131           5 :     if (poSrcDS->GetGeoTransform(adfGeoTransform) == CE_None)
    1132             :     {
    1133           5 :         poDS->SetGeoTransform(adfGeoTransform);
    1134             :     }
    1135             : 
    1136           5 :     if (!EQUAL(poSrcDS->GetProjectionRef(), ""))
    1137             :     {
    1138           5 :         poDS->SetProjection(poSrcDS->GetProjectionRef());
    1139             :     }
    1140             : 
    1141             :     // --------------------------------------------------------------------
    1142             :     //      Copy information to the raster band(s)
    1143             :     // --------------------------------------------------------------------
    1144             : 
    1145          14 :     for (int i = 1; i <= poDS->nBands; i++)
    1146             :     {
    1147           9 :         GDALRasterBand *poSrcBand = poSrcDS->GetRasterBand(i);
    1148             :         IdrisiRasterBand *poDstBand =
    1149           9 :             cpl::down_cast<IdrisiRasterBand *>(poDS->GetRasterBand(i));
    1150             : 
    1151           9 :         if (poDS->nBands == 1)
    1152             :         {
    1153           3 :             poDstBand->SetUnitType(poSrcBand->GetUnitType());
    1154           3 :             poDstBand->SetColorTable(poSrcBand->GetColorTable());
    1155           3 :             poDstBand->SetCategoryNames(poSrcBand->GetCategoryNames());
    1156             : 
    1157           3 :             const GDALRasterAttributeTable *poRAT = poSrcBand->GetDefaultRAT();
    1158             : 
    1159           3 :             if (poRAT != nullptr)
    1160             :             {
    1161           0 :                 poDstBand->SetDefaultRAT(poRAT);
    1162             :             }
    1163             :         }
    1164             : 
    1165           9 :         dfMin = poSrcBand->GetMinimum(nullptr);
    1166           9 :         dfMax = poSrcBand->GetMaximum(nullptr);
    1167           9 :         poDstBand->SetMinMax(dfMin, dfMax);
    1168             :         int bHasNoDataValue;
    1169           9 :         double dfNoDataValue = poSrcBand->GetNoDataValue(&bHasNoDataValue);
    1170           9 :         if (bHasNoDataValue)
    1171           0 :             poDstBand->SetNoDataValue(dfNoDataValue);
    1172             :     }
    1173             : 
    1174             :     // --------------------------------------------------------------------
    1175             :     //      Copy image data
    1176             :     // --------------------------------------------------------------------
    1177             : 
    1178           5 :     if (GDALDatasetCopyWholeRaster((GDALDatasetH)poSrcDS, (GDALDatasetH)poDS,
    1179             :                                    nullptr, pfnProgress,
    1180           5 :                                    pProgressData) != CE_None)
    1181             :     {
    1182           0 :         delete poDS;
    1183           0 :         return nullptr;
    1184             :     }
    1185             : 
    1186             :     // --------------------------------------------------------------------
    1187             :     //      Finalize
    1188             :     // --------------------------------------------------------------------
    1189             : 
    1190           5 :     poDS->FlushCache(false);
    1191             : 
    1192           5 :     return poDS;
    1193             : }
    1194             : 
    1195             : /************************************************************************/
    1196             : /*                            GetFileList()                             */
    1197             : /************************************************************************/
    1198             : 
    1199           4 : char **IdrisiDataset::GetFileList()
    1200             : {
    1201           4 :     char **papszFileList = GDALPamDataset::GetFileList();
    1202             : 
    1203             :     // --------------------------------------------------------------------
    1204             :     //      Symbol table file
    1205             :     // --------------------------------------------------------------------
    1206             : 
    1207           4 :     std::string osAssociated = CPLResetExtensionSafe(pszFilename, extSMP);
    1208             : 
    1209           4 :     if (FileExists(osAssociated.c_str()))
    1210             :     {
    1211           0 :         papszFileList = CSLAddString(papszFileList, osAssociated.c_str());
    1212             :     }
    1213             :     else
    1214             :     {
    1215           4 :         osAssociated = CPLResetExtensionSafe(pszFilename, extSMPu);
    1216             : 
    1217           4 :         if (FileExists(osAssociated.c_str()))
    1218             :         {
    1219           0 :             papszFileList = CSLAddString(papszFileList, osAssociated.c_str());
    1220             :         }
    1221             :     }
    1222             : 
    1223             :     // --------------------------------------------------------------------
    1224             :     //      Documentation file
    1225             :     // --------------------------------------------------------------------
    1226             : 
    1227           4 :     osAssociated = CPLResetExtensionSafe(pszFilename, extRDC);
    1228             : 
    1229           4 :     if (FileExists(osAssociated.c_str()))
    1230             :     {
    1231           4 :         papszFileList = CSLAddString(papszFileList, osAssociated.c_str());
    1232             :     }
    1233             :     else
    1234             :     {
    1235           0 :         osAssociated = CPLResetExtensionSafe(pszFilename, extRDCu);
    1236             : 
    1237           0 :         if (FileExists(osAssociated.c_str()))
    1238             :         {
    1239           0 :             papszFileList = CSLAddString(papszFileList, osAssociated.c_str());
    1240             :         }
    1241             :     }
    1242             : 
    1243             :     // --------------------------------------------------------------------
    1244             :     //      Reference file
    1245             :     // --------------------------------------------------------------------
    1246             : 
    1247           4 :     osAssociated = CPLResetExtensionSafe(pszFilename, extREF);
    1248             : 
    1249           4 :     if (FileExists(osAssociated.c_str()))
    1250             :     {
    1251           0 :         papszFileList = CSLAddString(papszFileList, osAssociated.c_str());
    1252             :     }
    1253             :     else
    1254             :     {
    1255           4 :         osAssociated = CPLResetExtensionSafe(pszFilename, extREFu);
    1256             : 
    1257           4 :         if (FileExists(osAssociated.c_str()))
    1258             :         {
    1259           0 :             papszFileList = CSLAddString(papszFileList, osAssociated.c_str());
    1260             :         }
    1261             :     }
    1262             : 
    1263           8 :     return papszFileList;
    1264             : }
    1265             : 
    1266             : /************************************************************************/
    1267             : /*                          GetGeoTransform()                           */
    1268             : /************************************************************************/
    1269             : 
    1270           9 : CPLErr IdrisiDataset::GetGeoTransform(double *padfTransform)
    1271             : {
    1272           9 :     if (GDALPamDataset::GetGeoTransform(padfTransform) != CE_None)
    1273             :     {
    1274           9 :         memcpy(padfTransform, adfGeoTransform, sizeof(double) * 6);
    1275             :         /*
    1276             : if( adfGeoTransform[0] == 0.0
    1277             : &&  adfGeoTransform[1] == 1.0
    1278             : &&  adfGeoTransform[2] == 0.0
    1279             : &&  adfGeoTransform[3] == 0.0
    1280             : &&  adfGeoTransform[4] == 0.0
    1281             : &&  adfGeoTransform[5] == 1.0 )
    1282             :     return CE_Failure;
    1283             :         */
    1284             :     }
    1285             : 
    1286           9 :     return CE_None;
    1287             : }
    1288             : 
    1289             : /************************************************************************/
    1290             : /*                          SetGeoTransform()                           */
    1291             : /************************************************************************/
    1292             : 
    1293          13 : CPLErr IdrisiDataset::SetGeoTransform(double *padfTransform)
    1294             : {
    1295          13 :     if (padfTransform[2] != 0.0 || padfTransform[4] != 0.0)
    1296             :     {
    1297           0 :         CPLError(CE_Failure, CPLE_AppDefined,
    1298             :                  "Attempt to set rotated geotransform on Idrisi Raster file.\n"
    1299             :                  "Idrisi Raster does not support rotation.\n");
    1300           0 :         return CE_Failure;
    1301             :     }
    1302             : 
    1303             :     // --------------------------------------------------------------------
    1304             :     // Update the .rdc file
    1305             :     // --------------------------------------------------------------------
    1306             : 
    1307          13 :     double dfXPixSz = padfTransform[1];
    1308          13 :     double dfYPixSz = padfTransform[5];
    1309          13 :     double dfMinX = padfTransform[0];
    1310          13 :     double dfMaxX = (dfXPixSz * nRasterXSize) + dfMinX;
    1311             : 
    1312             :     double dfMinY, dfMaxY;
    1313          13 :     if (dfYPixSz < 0)
    1314             :     {
    1315          13 :         dfMaxY = padfTransform[3];
    1316          13 :         dfMinY = (dfYPixSz * nRasterYSize) + padfTransform[3];
    1317             :     }
    1318             :     else
    1319             :     {
    1320           0 :         dfMaxY = (dfYPixSz * nRasterYSize) + padfTransform[3];
    1321           0 :         dfMinY = padfTransform[3];
    1322             :     }
    1323             : 
    1324          13 :     papszRDC = CSLSetNameValue(papszRDC, rdcMIN_X, CPLSPrintf("%.7f", dfMinX));
    1325          13 :     papszRDC = CSLSetNameValue(papszRDC, rdcMAX_X, CPLSPrintf("%.7f", dfMaxX));
    1326          13 :     papszRDC = CSLSetNameValue(papszRDC, rdcMIN_Y, CPLSPrintf("%.7f", dfMinY));
    1327          13 :     papszRDC = CSLSetNameValue(papszRDC, rdcMAX_Y, CPLSPrintf("%.7f", dfMaxY));
    1328          13 :     papszRDC = CSLSetNameValue(papszRDC, rdcRESOLUTION,
    1329             :                                CPLSPrintf("%.7f", fabs(dfYPixSz)));
    1330             : 
    1331             :     // --------------------------------------------------------------------
    1332             :     // Update the Dataset attribute
    1333             :     // --------------------------------------------------------------------
    1334             : 
    1335          13 :     memcpy(adfGeoTransform, padfTransform, sizeof(double) * 6);
    1336             : 
    1337          13 :     return CE_None;
    1338             : }
    1339             : 
    1340             : /************************************************************************/
    1341             : /*                          GetSpatialRef()                             */
    1342             : /************************************************************************/
    1343             : 
    1344           1 : const OGRSpatialReference *IdrisiDataset::GetSpatialRef() const
    1345             : {
    1346           1 :     const auto poSRS = GDALPamDataset::GetSpatialRef();
    1347           1 :     if (poSRS)
    1348           0 :         return poSRS;
    1349             : 
    1350           1 :     if (m_oSRS.IsEmpty())
    1351             :     {
    1352           1 :         const char *pszRefSystem = myCSLFetchNameValue(papszRDC, rdcREF_SYSTEM);
    1353           1 :         const char *pszRefUnit = myCSLFetchNameValue(papszRDC, rdcREF_UNITS);
    1354           1 :         if (pszRefSystem != nullptr && pszRefUnit != nullptr)
    1355           1 :             IdrisiGeoReference2Wkt(pszFilename, pszRefSystem, pszRefUnit,
    1356           1 :                                    m_oSRS);
    1357             :     }
    1358           1 :     return m_oSRS.IsEmpty() ? nullptr : &m_oSRS;
    1359             : }
    1360             : 
    1361             : /************************************************************************/
    1362             : /*                           SetProjection()                            */
    1363             : /************************************************************************/
    1364             : 
    1365          13 : CPLErr IdrisiDataset::SetSpatialRef(const OGRSpatialReference *poSRS)
    1366             : {
    1367          13 :     m_oSRS.Clear();
    1368          13 :     if (poSRS)
    1369          13 :         m_oSRS = *poSRS;
    1370             : 
    1371          13 :     char *pszRefSystem = nullptr;
    1372          13 :     char *pszRefUnit = nullptr;
    1373             : 
    1374          13 :     CPLErr eResult = Wkt2GeoReference(m_oSRS, &pszRefSystem, &pszRefUnit);
    1375             : 
    1376          13 :     papszRDC = CSLSetNameValue(papszRDC, rdcREF_SYSTEM, pszRefSystem);
    1377          13 :     papszRDC = CSLSetNameValue(papszRDC, rdcREF_UNITS, pszRefUnit);
    1378             : 
    1379          13 :     CPLFree(pszRefSystem);
    1380          13 :     CPLFree(pszRefUnit);
    1381             : 
    1382          13 :     return eResult;
    1383             : }
    1384             : 
    1385             : /************************************************************************/
    1386             : /*                          IdrisiRasterBand()                          */
    1387             : /************************************************************************/
    1388             : 
    1389          42 : IdrisiRasterBand::IdrisiRasterBand(IdrisiDataset *poDSIn, int nBandIn,
    1390          42 :                                    GDALDataType eDataTypeIn)
    1391             :     : poDefaultRAT(nullptr),
    1392         126 :       nRecordSize(poDSIn->GetRasterXSize() * poDSIn->nBands *
    1393          42 :                   GDALGetDataTypeSizeBytes(eDataTypeIn)),
    1394          42 :       pabyScanLine(static_cast<GByte *>(VSI_MALLOC3_VERBOSE(
    1395             :           poDSIn->GetRasterXSize(), GDALGetDataTypeSizeBytes(eDataTypeIn),
    1396             :           poDSIn->nBands))),
    1397          84 :       fMaximum(0.0), fMinimum(0.0), bFirstVal(true)
    1398             : {
    1399          42 :     poDS = poDSIn;
    1400          42 :     nBand = nBandIn;
    1401          42 :     eDataType = eDataTypeIn;
    1402          42 :     nBlockYSize = 1;
    1403          42 :     nBlockXSize = poDS->GetRasterXSize();
    1404          42 : }
    1405             : 
    1406             : /************************************************************************/
    1407             : /*                         ~IdrisiRasterBand()                          */
    1408             : /************************************************************************/
    1409             : 
    1410          84 : IdrisiRasterBand::~IdrisiRasterBand()
    1411             : {
    1412          42 :     CPLFree(pabyScanLine);
    1413             : 
    1414          42 :     if (poDefaultRAT)
    1415             :     {
    1416           0 :         delete poDefaultRAT;
    1417             :     }
    1418          84 : }
    1419             : 
    1420             : /************************************************************************/
    1421             : /*                             IReadBlock()                             */
    1422             : /************************************************************************/
    1423             : 
    1424        1392 : CPLErr IdrisiRasterBand::IReadBlock(int nBlockXOff, int nBlockYOff,
    1425             :                                     void *pImage)
    1426             : {
    1427        1392 :     IdrisiDataset *poGDS = cpl::down_cast<IdrisiDataset *>(poDS);
    1428             : 
    1429        1392 :     if (VSIFSeekL(poGDS->fp, vsi_l_offset(nRecordSize) * nBlockYOff, SEEK_SET) <
    1430             :         0)
    1431             :     {
    1432           0 :         CPLError(CE_Failure, CPLE_FileIO,
    1433             :                  "Can't seek(%s) block with X offset %d and Y offset %d.\n%s",
    1434             :                  poGDS->pszFilename, nBlockXOff, nBlockYOff,
    1435           0 :                  VSIStrerror(errno));
    1436           0 :         return CE_Failure;
    1437             :     }
    1438             : 
    1439        1392 :     if ((int)VSIFReadL(pabyScanLine, 1, nRecordSize, poGDS->fp) < nRecordSize)
    1440             :     {
    1441           0 :         CPLError(CE_Failure, CPLE_FileIO,
    1442             :                  "Can't read(%s) block with X offset %d and Y offset %d.\n%s",
    1443             :                  poGDS->pszFilename, nBlockXOff, nBlockYOff,
    1444           0 :                  VSIStrerror(errno));
    1445           0 :         return CE_Failure;
    1446             :     }
    1447             : 
    1448        1392 :     if (poGDS->nBands == 3)
    1449             :     {
    1450       43380 :         for (int i = 0, j = (3 - nBand); i < nBlockXSize; i++, j += 3)
    1451             :         {
    1452       42800 :             ((GByte *)pImage)[i] = pabyScanLine[j];
    1453             :         }
    1454             :     }
    1455             :     else
    1456             :     {
    1457         812 :         memcpy(pImage, pabyScanLine, nRecordSize);
    1458             :     }
    1459             : 
    1460             : #ifdef CPL_MSB
    1461             :     if (eDataType == GDT_Float32)
    1462             :         GDALSwapWords(pImage, 4, nBlockXSize * nBlockYSize, 4);
    1463             : #endif
    1464             : 
    1465        1392 :     return CE_None;
    1466             : }
    1467             : 
    1468             : /************************************************************************/
    1469             : /*                            IWriteBlock()                             */
    1470             : /************************************************************************/
    1471             : 
    1472         230 : CPLErr IdrisiRasterBand::IWriteBlock(int nBlockXOff, int nBlockYOff,
    1473             :                                      void *pImage)
    1474             : {
    1475         230 :     IdrisiDataset *poGDS = cpl::down_cast<IdrisiDataset *>(poDS);
    1476             : 
    1477             : #ifdef CPL_MSB
    1478             :     // Swap in input buffer if needed.
    1479             :     if (eDataType == GDT_Float32)
    1480             :         GDALSwapWords(pImage, 4, nBlockXSize * nBlockYSize, 4);
    1481             : #endif
    1482             : 
    1483         230 :     if (poGDS->nBands == 1)
    1484             :     {
    1485          50 :         memcpy(pabyScanLine, pImage, nRecordSize);
    1486             :     }
    1487             :     else
    1488             :     {
    1489         180 :         if (nBand > 1)
    1490             :         {
    1491         120 :             VSIFSeekL(poGDS->fp, vsi_l_offset(nRecordSize) * nBlockYOff,
    1492             :                       SEEK_SET);
    1493         120 :             VSIFReadL(pabyScanLine, 1, nRecordSize, poGDS->fp);
    1494             :         }
    1495             :         int i, j;
    1496        7980 :         for (i = 0, j = (3 - nBand); i < nBlockXSize; i++, j += 3)
    1497             :         {
    1498        7800 :             pabyScanLine[j] = ((GByte *)pImage)[i];
    1499             :         }
    1500             :     }
    1501             : 
    1502             : #ifdef CPL_MSB
    1503             :     // Swap input buffer back to original form.
    1504             :     if (eDataType == GDT_Float32)
    1505             :         GDALSwapWords(pImage, 4, nBlockXSize * nBlockYSize, 4);
    1506             : #endif
    1507             : 
    1508         230 :     VSIFSeekL(poGDS->fp, vsi_l_offset(nRecordSize) * nBlockYOff, SEEK_SET);
    1509             : 
    1510         230 :     if ((int)VSIFWriteL(pabyScanLine, 1, nRecordSize, poGDS->fp) < nRecordSize)
    1511             :     {
    1512           0 :         CPLError(CE_Failure, CPLE_FileIO,
    1513             :                  "Can't write(%s) block with X offset %d and Y offset %d.\n%s",
    1514             :                  poGDS->pszFilename, nBlockXOff, nBlockYOff,
    1515           0 :                  VSIStrerror(errno));
    1516           0 :         return CE_Failure;
    1517             :     }
    1518             : 
    1519         230 :     int bHasNoDataValue = FALSE;
    1520         230 :     float fNoDataValue = (float)GetNoDataValue(&bHasNoDataValue);
    1521             : 
    1522             :     // --------------------------------------------------------------------
    1523             :     //      Search for the minimum and maximum values
    1524             :     // --------------------------------------------------------------------
    1525             : 
    1526         230 :     if (eDataType == GDT_Float32)
    1527             :     {
    1528         530 :         for (int i = 0; i < nBlockXSize; i++)
    1529             :         {
    1530         500 :             float fVal =
    1531         500 :                 reinterpret_cast<float *>(pabyScanLine)[i];  // this is fine
    1532         500 :             if (!bHasNoDataValue || fVal != fNoDataValue)
    1533             :             {
    1534         500 :                 if (bFirstVal)
    1535             :                 {
    1536           2 :                     fMinimum = fVal;
    1537           2 :                     fMaximum = fVal;
    1538           2 :                     bFirstVal = false;
    1539             :                 }
    1540             :                 else
    1541             :                 {
    1542         498 :                     if (fVal < fMinimum)
    1543           3 :                         fMinimum = fVal;
    1544         498 :                     if (fVal > fMaximum)
    1545           9 :                         fMaximum = fVal;
    1546             :                 }
    1547             :             }
    1548             :         }
    1549             :     }
    1550         200 :     else if (eDataType == GDT_Int16)
    1551             :     {
    1552         110 :         for (int i = 0; i < nBlockXSize; i++)
    1553             :         {
    1554         100 :             float fVal = (float)(reinterpret_cast<GInt16 *>(pabyScanLine))[i];
    1555         100 :             if (!bHasNoDataValue || fVal != fNoDataValue)
    1556             :             {
    1557         100 :                 if (bFirstVal)
    1558             :                 {
    1559           1 :                     fMinimum = fVal;
    1560           1 :                     fMaximum = fVal;
    1561           1 :                     bFirstVal = false;
    1562             :                 }
    1563             :                 else
    1564             :                 {
    1565          99 :                     if (fVal < fMinimum)
    1566           0 :                         fMinimum = fVal;
    1567          99 :                     if (fVal > fMaximum)
    1568           0 :                         fMaximum = fVal;
    1569             :                 }
    1570             :             }
    1571             :         }
    1572             :     }
    1573         190 :     else if (poGDS->nBands == 1)
    1574             :     {
    1575         110 :         for (int i = 0; i < nBlockXSize; i++)
    1576             :         {
    1577         100 :             float fVal = (float)((GByte *)pabyScanLine)[i];
    1578         100 :             if (!bHasNoDataValue || fVal != fNoDataValue)
    1579             :             {
    1580         100 :                 if (bFirstVal)
    1581             :                 {
    1582           1 :                     fMinimum = fVal;
    1583           1 :                     fMaximum = fVal;
    1584           1 :                     bFirstVal = false;
    1585             :                 }
    1586             :                 else
    1587             :                 {
    1588          99 :                     if (fVal < fMinimum)
    1589           0 :                         fMinimum =
    1590             :                             fVal;  // I don't change this part, keep it as it is
    1591          99 :                     if (fVal > fMaximum)
    1592           0 :                         fMaximum = fVal;
    1593             :                 }
    1594             :             }
    1595             :         }
    1596             :     }
    1597             :     else
    1598             :     {
    1599        7980 :         for (int i = 0, j = (3 - nBand); i < nBlockXSize; i++, j += 3)
    1600             :         {
    1601        7800 :             float fVal = (float)((GByte *)pabyScanLine)[j];
    1602        7800 :             if (!bHasNoDataValue || fVal != fNoDataValue)
    1603             :             {
    1604        7800 :                 if (bFirstVal)
    1605             :                 {
    1606           6 :                     fMinimum = fVal;
    1607           6 :                     fMaximum = fVal;
    1608           6 :                     bFirstVal = false;
    1609             :                 }
    1610             :                 else
    1611             :                 {
    1612        7794 :                     if (fVal < fMinimum)
    1613           0 :                         fMinimum = fVal;
    1614        7794 :                     if (fVal > fMaximum)
    1615          28 :                         fMaximum = fVal;
    1616             :                 }
    1617             :             }
    1618             :         }
    1619             :     }
    1620             : 
    1621         230 :     return CE_None;
    1622             : }
    1623             : 
    1624             : /************************************************************************/
    1625             : /*                             GetMinimum()                             */
    1626             : /************************************************************************/
    1627             : 
    1628           0 : double IdrisiRasterBand::GetMinimum(int *pbSuccess)
    1629             : {
    1630           0 :     IdrisiDataset *poGDS = cpl::down_cast<IdrisiDataset *>(poDS);
    1631             : 
    1632           0 :     if (myCSLFetchNameValue(poGDS->papszRDC, rdcMIN_VALUE) == nullptr)
    1633           0 :         return GDALPamRasterBand::GetMinimum(pbSuccess);
    1634             : 
    1635             :     double adfMinValue[3];
    1636           0 :     CPLsscanf(myCSLFetchNameValue(poGDS->papszRDC, rdcMIN_VALUE), "%lf %lf %lf",
    1637             :               &adfMinValue[0], &adfMinValue[1], &adfMinValue[2]);
    1638             : 
    1639           0 :     if (pbSuccess)
    1640             :     {
    1641           0 :         *pbSuccess = true;
    1642             :     }
    1643             : 
    1644           0 :     return adfMinValue[this->nBand - 1];
    1645             : }
    1646             : 
    1647             : /************************************************************************/
    1648             : /*                             GetMaximum()                             */
    1649             : /************************************************************************/
    1650             : 
    1651           0 : double IdrisiRasterBand::GetMaximum(int *pbSuccess)
    1652             : {
    1653           0 :     IdrisiDataset *poGDS = cpl::down_cast<IdrisiDataset *>(poDS);
    1654             : 
    1655           0 :     if (myCSLFetchNameValue(poGDS->papszRDC, rdcMAX_VALUE) == nullptr)
    1656           0 :         return GDALPamRasterBand::GetMaximum(pbSuccess);
    1657             : 
    1658             :     double adfMaxValue[3];
    1659           0 :     CPLsscanf(myCSLFetchNameValue(poGDS->papszRDC, rdcMAX_VALUE), "%lf %lf %lf",
    1660             :               &adfMaxValue[0], &adfMaxValue[1], &adfMaxValue[2]);
    1661             : 
    1662           0 :     if (pbSuccess)
    1663             :     {
    1664           0 :         *pbSuccess = true;
    1665             :     }
    1666             : 
    1667           0 :     return adfMaxValue[this->nBand - 1];
    1668             : }
    1669             : 
    1670             : /************************************************************************/
    1671             : /*                           GetNoDataValue()                           */
    1672             : /************************************************************************/
    1673             : 
    1674         276 : double IdrisiRasterBand::GetNoDataValue(int *pbSuccess)
    1675             : {
    1676         276 :     IdrisiDataset *poGDS = cpl::down_cast<IdrisiDataset *>(poDS);
    1677             : 
    1678         276 :     const char *pszFlagDefn = nullptr;
    1679             : 
    1680         276 :     if (myCSLFetchNameValue(poGDS->papszRDC, rdcFLAG_DEFN) != nullptr)
    1681         276 :         pszFlagDefn = myCSLFetchNameValue(poGDS->papszRDC, rdcFLAG_DEFN);
    1682           0 :     else if (myCSLFetchNameValue(poGDS->papszRDC, rdcFLAG_DEFN2) != nullptr)
    1683           0 :         pszFlagDefn = myCSLFetchNameValue(poGDS->papszRDC, rdcFLAG_DEFN2);
    1684             : 
    1685             :     // ------------------------------------------------------------------------
    1686             :     // If Flag_Def is not "none", Flag_Value means "background"
    1687             :     // or "missing data"
    1688             :     // ------------------------------------------------------------------------
    1689             : 
    1690             :     double dfNoData;
    1691         276 :     if (pszFlagDefn != nullptr && !EQUAL(pszFlagDefn, "none"))
    1692             :     {
    1693           0 :         dfNoData =
    1694           0 :             CPLAtof_nz(myCSLFetchNameValue(poGDS->papszRDC, rdcFLAG_VALUE));
    1695           0 :         if (pbSuccess)
    1696           0 :             *pbSuccess = TRUE;
    1697             :     }
    1698             :     else
    1699             :     {
    1700         276 :         dfNoData = -9999.0; /* this value should be ignored */
    1701         276 :         if (pbSuccess)
    1702         276 :             *pbSuccess = FALSE;
    1703             :     }
    1704             : 
    1705         276 :     return dfNoData;
    1706             : }
    1707             : 
    1708             : /************************************************************************/
    1709             : /*                           SetNoDataValue()                           */
    1710             : /************************************************************************/
    1711             : 
    1712           0 : CPLErr IdrisiRasterBand::SetNoDataValue(double dfNoDataValue)
    1713             : {
    1714           0 :     IdrisiDataset *poGDS = cpl::down_cast<IdrisiDataset *>(poDS);
    1715             : 
    1716           0 :     poGDS->papszRDC = CSLSetNameValue(poGDS->papszRDC, rdcFLAG_VALUE,
    1717             :                                       CPLSPrintf("%.7g", dfNoDataValue));
    1718           0 :     poGDS->papszRDC =
    1719           0 :         CSLSetNameValue(poGDS->papszRDC, rdcFLAG_DEFN, "missing data");
    1720             : 
    1721           0 :     return CE_None;
    1722             : }
    1723             : 
    1724             : /************************************************************************/
    1725             : /*                       GetColorInterpretation()                       */
    1726             : /************************************************************************/
    1727             : 
    1728           0 : GDALColorInterp IdrisiRasterBand::GetColorInterpretation()
    1729             : {
    1730           0 :     IdrisiDataset *poGDS = cpl::down_cast<IdrisiDataset *>(poDS);
    1731             : 
    1732           0 :     if (poGDS->nBands == 3)
    1733             :     {
    1734           0 :         switch (nBand)
    1735             :         {
    1736           0 :             case 1:
    1737           0 :                 return GCI_BlueBand;
    1738           0 :             case 2:
    1739           0 :                 return GCI_GreenBand;
    1740           0 :             case 3:
    1741           0 :                 return GCI_RedBand;
    1742             :         }
    1743             :     }
    1744           0 :     else if (poGDS->poColorTable->GetColorEntryCount() > 0)
    1745             :     {
    1746           0 :         return GCI_PaletteIndex;
    1747             :     }
    1748           0 :     return GCI_GrayIndex;
    1749             : }
    1750             : 
    1751             : /************************************************************************/
    1752             : /*                          GetCategoryNames()                          */
    1753             : /************************************************************************/
    1754             : 
    1755           0 : char **IdrisiRasterBand::GetCategoryNames()
    1756             : {
    1757           0 :     IdrisiDataset *poGDS = cpl::down_cast<IdrisiDataset *>(poDS);
    1758             : 
    1759           0 :     return poGDS->papszCategories;
    1760             : }
    1761             : 
    1762             : /************************************************************************/
    1763             : /*                          SetCategoryNames()                          */
    1764             : /************************************************************************/
    1765             : 
    1766           3 : CPLErr IdrisiRasterBand::SetCategoryNames(char **papszCategoryNames)
    1767             : {
    1768           3 :     const int nCatCount = CSLCount(papszCategoryNames);
    1769             : 
    1770           3 :     if (nCatCount == 0)
    1771           3 :         return CE_None;
    1772             : 
    1773           0 :     IdrisiDataset *poGDS = cpl::down_cast<IdrisiDataset *>(poDS);
    1774             : 
    1775           0 :     CSLDestroy(poGDS->papszCategories);
    1776           0 :     poGDS->papszCategories = CSLDuplicate(papszCategoryNames);
    1777             : 
    1778             :     // ------------------------------------------------------
    1779             :     //        Search for the "Legend cats  : N" line
    1780             :     // ------------------------------------------------------
    1781             : 
    1782           0 :     int nLine = -1;
    1783           0 :     for (int i = 0; (i < CSLCount(poGDS->papszRDC)) && (nLine == -1); i++)
    1784           0 :         if (EQUALN(poGDS->papszRDC[i], rdcLEGEND_CATS, 12))
    1785           0 :             nLine = i;
    1786             : 
    1787           0 :     if (nLine < 0)
    1788           0 :         return CE_None;
    1789             : 
    1790           0 :     int nCount = atoi_nz(myCSLFetchNameValue(poGDS->papszRDC, rdcLEGEND_CATS));
    1791             : 
    1792             :     // ------------------------------------------------------
    1793             :     //        Delete old instance of the category names
    1794             :     // ------------------------------------------------------
    1795             : 
    1796           0 :     if (nCount > 0)
    1797           0 :         poGDS->papszRDC =
    1798           0 :             CSLRemoveStrings(poGDS->papszRDC, nLine + 1, nCount, nullptr);
    1799             : 
    1800           0 :     nCount = 0;
    1801             : 
    1802           0 :     for (int i = 0; i < nCatCount; i++)
    1803             :     {
    1804           0 :         if ((strlen(papszCategoryNames[i]) > 0))
    1805             :         {
    1806           0 :             poGDS->papszRDC =
    1807           0 :                 CSLInsertString(poGDS->papszRDC, (nLine + nCount + 1),
    1808             :                                 CPLSPrintf("%s:%s", CPLSPrintf(rdcCODE_N, i),
    1809           0 :                                            papszCategoryNames[i]));
    1810           0 :             nCount++;
    1811             :         }
    1812             :     }
    1813             : 
    1814           0 :     poGDS->papszRDC =
    1815           0 :         CSLSetNameValue(poGDS->papszRDC, rdcLEGEND_CATS,
    1816             :                         CPLSPrintf("%d", nCount));  // this is fine
    1817             : 
    1818           0 :     return CE_None;
    1819             : }
    1820             : 
    1821             : /************************************************************************/
    1822             : /*                           GetColorTable()                            */
    1823             : /************************************************************************/
    1824             : 
    1825           0 : GDALColorTable *IdrisiRasterBand::GetColorTable()
    1826             : {
    1827           0 :     IdrisiDataset *poGDS = cpl::down_cast<IdrisiDataset *>(poDS);
    1828             : 
    1829           0 :     if (poGDS->poColorTable->GetColorEntryCount() == 0)
    1830             :     {
    1831           0 :         return nullptr;
    1832             :     }
    1833             : 
    1834           0 :     return poGDS->poColorTable;
    1835             : }
    1836             : 
    1837             : /************************************************************************/
    1838             : /*                           SetColorTable()                            */
    1839             : /************************************************************************/
    1840             : 
    1841           3 : CPLErr IdrisiRasterBand::SetColorTable(GDALColorTable *poColorTable)
    1842             : {
    1843           3 :     if (poColorTable == nullptr)
    1844             :     {
    1845           3 :         return CE_None;
    1846             :     }
    1847             : 
    1848           0 :     if (poColorTable->GetColorEntryCount() == 0)
    1849             :     {
    1850           0 :         return CE_None;
    1851             :     }
    1852             : 
    1853           0 :     IdrisiDataset *poGDS = cpl::down_cast<IdrisiDataset *>(poDS);
    1854             : 
    1855           0 :     delete poGDS->poColorTable;
    1856             : 
    1857           0 :     poGDS->poColorTable = poColorTable->Clone();
    1858             : 
    1859             :     const std::string osSMPFilename =
    1860           0 :         CPLResetExtensionSafe(poGDS->pszFilename, extSMP);
    1861           0 :     VSILFILE *fpSMP = VSIFOpenL(osSMPFilename.c_str(), "w");
    1862             : 
    1863           0 :     if (fpSMP != nullptr)
    1864             :     {
    1865           0 :         VSIFWriteL("[Idrisi]", 8, 1, fpSMP);
    1866           0 :         GByte nPlatform = 1;
    1867           0 :         VSIFWriteL(&nPlatform, 1, 1, fpSMP);
    1868           0 :         GByte nVersion = 11;
    1869           0 :         VSIFWriteL(&nVersion, 1, 1, fpSMP);
    1870           0 :         GByte nDepth = 8;
    1871           0 :         VSIFWriteL(&nDepth, 1, 1, fpSMP);
    1872           0 :         GByte nHeadSz = 18;
    1873           0 :         VSIFWriteL(&nHeadSz, 1, 1, fpSMP);
    1874           0 :         GUInt16 nCount = 255;
    1875           0 :         VSIFWriteL(&nCount, 2, 1, fpSMP);
    1876           0 :         GUInt16 nMix = 0;
    1877           0 :         VSIFWriteL(&nMix, 2, 1, fpSMP);
    1878           0 :         GUInt16 nMax = 255;
    1879           0 :         VSIFWriteL(&nMax, 2, 1, fpSMP);
    1880             : 
    1881             :         GDALColorEntry oEntry;
    1882             :         GByte aucRGB[3];
    1883             : 
    1884           0 :         for (int i = 0; i < poColorTable->GetColorEntryCount(); i++)
    1885             :         {
    1886           0 :             poColorTable->GetColorEntryAsRGB(i, &oEntry);
    1887           0 :             aucRGB[0] = (GByte)oEntry.c1;
    1888           0 :             aucRGB[1] = (GByte)oEntry.c2;
    1889           0 :             aucRGB[2] = (GByte)oEntry.c3;
    1890           0 :             VSIFWriteL(&aucRGB, 3, 1, fpSMP);
    1891             :         }
    1892             :         /* smp files always have 256 occurrences. */
    1893           0 :         for (int i = poColorTable->GetColorEntryCount(); i <= 255; i++)
    1894             :         {
    1895           0 :             poColorTable->GetColorEntryAsRGB(i, &oEntry);
    1896           0 :             aucRGB[0] = (GByte)0;
    1897           0 :             aucRGB[1] = (GByte)0;
    1898           0 :             aucRGB[2] = (GByte)0;
    1899           0 :             VSIFWriteL(&aucRGB, 3, 1, fpSMP);
    1900             :         }
    1901           0 :         VSIFCloseL(fpSMP);
    1902             :     }
    1903             : 
    1904           0 :     return CE_None;
    1905             : }
    1906             : 
    1907             : /************************************************************************/
    1908             : /*                           GetUnitType()                              */
    1909             : /************************************************************************/
    1910             : 
    1911           0 : const char *IdrisiRasterBand::GetUnitType()
    1912             : {
    1913           0 :     IdrisiDataset *poGDS = cpl::down_cast<IdrisiDataset *>(poDS);
    1914             : 
    1915           0 :     return poGDS->pszUnitType;
    1916             : }
    1917             : 
    1918             : /************************************************************************/
    1919             : /*                            SetUnitType()                             */
    1920             : /************************************************************************/
    1921             : 
    1922           3 : CPLErr IdrisiRasterBand::SetUnitType(const char *pszUnitType)
    1923             : {
    1924           3 :     IdrisiDataset *poGDS = cpl::down_cast<IdrisiDataset *>(poDS);
    1925             : 
    1926           3 :     if (strlen(pszUnitType) == 0)
    1927             :     {
    1928           3 :         poGDS->papszRDC =
    1929           3 :             CSLSetNameValue(poGDS->papszRDC, rdcVALUE_UNITS, "unspecified");
    1930             :     }
    1931             :     else
    1932             :     {
    1933           0 :         poGDS->papszRDC =
    1934           0 :             CSLSetNameValue(poGDS->papszRDC, rdcVALUE_UNITS, pszUnitType);
    1935             :     }
    1936             : 
    1937           3 :     return CE_None;
    1938             : }
    1939             : 
    1940             : /************************************************************************/
    1941             : /*                             SetMinMax()                              */
    1942             : /************************************************************************/
    1943             : 
    1944          49 : CPLErr IdrisiRasterBand::SetMinMax(double dfMin, double dfMax)
    1945             : {
    1946          49 :     IdrisiDataset *poGDS = cpl::down_cast<IdrisiDataset *>(poDS);
    1947             : 
    1948          49 :     fMinimum = (float)dfMin;
    1949          49 :     fMaximum = (float)dfMax;
    1950             : 
    1951          49 :     double adfMin[3] = {0.0, 0.0, 0.0};
    1952          49 :     double adfMax[3] = {0.0, 0.0, 0.0};
    1953             : 
    1954          49 :     if (myCSLFetchNameValue(poGDS->papszRDC, rdcMIN_VALUE) != nullptr)
    1955          49 :         CPLsscanf(myCSLFetchNameValue(poGDS->papszRDC, rdcMIN_VALUE),
    1956             :                   "%lf %lf %lf", &adfMin[0], &adfMin[1], &adfMin[2]);
    1957          49 :     if (myCSLFetchNameValue(poGDS->papszRDC, rdcMAX_VALUE) != nullptr)
    1958          49 :         CPLsscanf(myCSLFetchNameValue(poGDS->papszRDC, rdcMAX_VALUE),
    1959             :                   "%lf %lf %lf", &adfMax[0], &adfMax[1], &adfMax[2]);
    1960             : 
    1961          49 :     adfMin[nBand - 1] = dfMin;
    1962          49 :     adfMax[nBand - 1] = dfMax;
    1963             : 
    1964          49 :     if (poGDS->nBands == 3)
    1965             :     {
    1966          24 :         poGDS->papszRDC = CSLSetNameValue(
    1967             :             poGDS->papszRDC, rdcMIN_VALUE,
    1968             :             CPLSPrintf("%.8g %.8g %.8g", adfMin[0], adfMin[1], adfMin[2]));
    1969          24 :         poGDS->papszRDC = CSLSetNameValue(
    1970             :             poGDS->papszRDC, rdcMAX_VALUE,
    1971             :             CPLSPrintf("%.8g %.8g %.8g", adfMax[0], adfMax[1], adfMax[2]));
    1972          24 :         poGDS->papszRDC = CSLSetNameValue(
    1973             :             poGDS->papszRDC, rdcDISPLAY_MIN,
    1974             :             CPLSPrintf("%.8g %.8g %.8g", adfMin[0], adfMin[1], adfMin[2]));
    1975          24 :         poGDS->papszRDC = CSLSetNameValue(
    1976             :             poGDS->papszRDC, rdcDISPLAY_MAX,
    1977             :             CPLSPrintf("%.8g %.8g %.8g", adfMax[0], adfMax[1], adfMax[2]));
    1978             :     }
    1979             :     else
    1980             :     {
    1981          25 :         poGDS->papszRDC = CSLSetNameValue(poGDS->papszRDC, rdcMIN_VALUE,
    1982             :                                           CPLSPrintf("%.8g", adfMin[0]));
    1983          25 :         poGDS->papszRDC = CSLSetNameValue(poGDS->papszRDC, rdcMAX_VALUE,
    1984             :                                           CPLSPrintf("%.8g", adfMax[0]));
    1985          25 :         poGDS->papszRDC = CSLSetNameValue(poGDS->papszRDC, rdcDISPLAY_MIN,
    1986             :                                           CPLSPrintf("%.8g", adfMin[0]));
    1987          25 :         poGDS->papszRDC = CSLSetNameValue(poGDS->papszRDC, rdcDISPLAY_MAX,
    1988             :                                           CPLSPrintf("%.8g", adfMax[0]));
    1989             :     }
    1990             : 
    1991          49 :     return CE_None;
    1992             : }
    1993             : 
    1994             : /************************************************************************/
    1995             : /*                           SetStatistics()                            */
    1996             : /************************************************************************/
    1997             : 
    1998          20 : CPLErr IdrisiRasterBand::SetStatistics(double dfMin, double dfMax,
    1999             :                                        double dfMean, double dfStdDev)
    2000             : {
    2001          20 :     SetMinMax(dfMin, dfMax);
    2002             : 
    2003          20 :     return GDALPamRasterBand::SetStatistics(dfMin, dfMax, dfMean, dfStdDev);
    2004             : }
    2005             : 
    2006             : /************************************************************************/
    2007             : /*                           SetDefaultRAT()                            */
    2008             : /************************************************************************/
    2009             : 
    2010           0 : CPLErr IdrisiRasterBand::SetDefaultRAT(const GDALRasterAttributeTable *poRAT)
    2011             : {
    2012           0 :     if (!poRAT)
    2013             :     {
    2014           0 :         return CE_Failure;
    2015             :     }
    2016             : 
    2017             :     // ----------------------------------------------------------
    2018             :     // Get field indices
    2019             :     // ----------------------------------------------------------
    2020             : 
    2021           0 :     int iValue = -1;
    2022           0 :     int iRed = poRAT->GetColOfUsage(GFU_Red);
    2023           0 :     int iGreen = poRAT->GetColOfUsage(GFU_Green);
    2024           0 :     int iBlue = poRAT->GetColOfUsage(GFU_Blue);
    2025             : 
    2026           0 :     GDALColorTable *poCT = nullptr;
    2027           0 :     char **papszNames = nullptr;
    2028             : 
    2029           0 :     int nFact = 1;
    2030             : 
    2031             :     // ----------------------------------------------------------
    2032             :     // Seek for "Value" field index (AGIS standards field name)
    2033             :     // ----------------------------------------------------------
    2034             : 
    2035           0 :     if (GetColorTable() == nullptr ||
    2036           0 :         GetColorTable()->GetColorEntryCount() == 0)
    2037             :     {
    2038           0 :         for (int i = 0; i < poRAT->GetColumnCount(); i++)
    2039             :         {
    2040           0 :             if (STARTS_WITH_CI(poRAT->GetNameOfCol(i), "Value"))
    2041             :             {
    2042           0 :                 iValue = i;
    2043           0 :                 break;
    2044             :             }
    2045             :         }
    2046             : 
    2047           0 :         if (iRed != -1 && iGreen != -1 && iBlue != -1)
    2048             :         {
    2049           0 :             poCT = new GDALColorTable();
    2050           0 :             nFact = poRAT->GetTypeOfCol(iRed) == GFT_Real ? 255 : 1;
    2051             :         }
    2052             :     }
    2053             : 
    2054             :     // ----------------------------------------------------------
    2055             :     // Seek for Name field index
    2056             :     // ----------------------------------------------------------
    2057             : 
    2058           0 :     int iName = -1;
    2059           0 :     if (CSLCount(GetCategoryNames()) == 0)
    2060             :     {
    2061           0 :         iName = poRAT->GetColOfUsage(GFU_Name);
    2062           0 :         if (iName == -1)
    2063             :         {
    2064           0 :             for (int i = 0; i < poRAT->GetColumnCount(); i++)
    2065             :             {
    2066           0 :                 if (STARTS_WITH_CI(poRAT->GetNameOfCol(i), "Class_Name"))
    2067             :                 {
    2068           0 :                     iName = i;
    2069           0 :                     break;
    2070             :                 }
    2071           0 :                 else if (STARTS_WITH_CI(poRAT->GetNameOfCol(i), "Categor"))
    2072             :                 {
    2073           0 :                     iName = i;
    2074           0 :                     break;
    2075             :                 }
    2076           0 :                 else if (STARTS_WITH_CI(poRAT->GetNameOfCol(i), "Name"))
    2077             :                 {
    2078           0 :                     iName = i;
    2079           0 :                     break;
    2080             :                 }
    2081             :             }
    2082             :         }
    2083             : 
    2084             :         /* if still can't find it use the first String column */
    2085             : 
    2086           0 :         if (iName == -1)
    2087             :         {
    2088           0 :             for (int i = 0; i < poRAT->GetColumnCount(); i++)
    2089             :             {
    2090           0 :                 if (poRAT->GetTypeOfCol(i) == GFT_String)
    2091             :                 {
    2092           0 :                     iName = i;
    2093           0 :                     break;
    2094             :                 }
    2095             :             }
    2096             :         }
    2097             : 
    2098             :         // ----------------------------------------------------------
    2099             :         // Incomplete Attribute Table;
    2100             :         // ----------------------------------------------------------
    2101             : 
    2102           0 :         if (iName == -1)
    2103             :         {
    2104           0 :             iName = iValue;
    2105             :         }
    2106             :     }
    2107             : 
    2108             :     // ----------------------------------------------------------
    2109             :     // Load values
    2110             :     // ----------------------------------------------------------
    2111             : 
    2112             :     GDALColorEntry sColor;
    2113           0 :     int iEntry = 0;
    2114           0 :     int iOut = 0;
    2115           0 :     int nEntryCount = poRAT->GetRowCount();
    2116           0 :     int nValue = 0;
    2117             : 
    2118           0 :     if (iValue != -1)
    2119             :     {
    2120           0 :         nValue = poRAT->GetValueAsInt(iEntry, iValue);
    2121             :     }
    2122             : 
    2123           0 :     for (iOut = 0; iOut < 65535 && (iEntry < nEntryCount); iOut++)
    2124             :     {
    2125           0 :         if (iOut == nValue)
    2126             :         {
    2127           0 :             if (poCT)
    2128             :             {
    2129           0 :                 const double dRed = poRAT->GetValueAsDouble(iEntry, iRed);
    2130           0 :                 const double dGreen = poRAT->GetValueAsDouble(iEntry, iGreen);
    2131           0 :                 const double dBlue = poRAT->GetValueAsDouble(iEntry, iBlue);
    2132           0 :                 sColor.c1 = (short)(dRed * nFact);
    2133           0 :                 sColor.c2 = (short)(dGreen * nFact);
    2134           0 :                 sColor.c3 = (short)(dBlue * nFact);
    2135           0 :                 sColor.c4 = (short)(255 / nFact);
    2136           0 :                 poCT->SetColorEntry(iEntry, &sColor);
    2137             :             }
    2138             : 
    2139           0 :             if (iName != -1)
    2140             :             {
    2141           0 :                 papszNames = CSLAddString(
    2142           0 :                     papszNames, poRAT->GetValueAsString(iEntry, iName));
    2143             :             }
    2144             : 
    2145             :             /* Advance on the table */
    2146             : 
    2147           0 :             if ((++iEntry) < nEntryCount)
    2148             :             {
    2149           0 :                 if (iValue != -1)
    2150           0 :                     nValue = poRAT->GetValueAsInt(iEntry, iValue);
    2151             :                 else
    2152           0 :                     nValue = iEntry;
    2153             :             }
    2154             :         }
    2155           0 :         else if (iOut < nValue)
    2156             :         {
    2157           0 :             if (poCT)
    2158             :             {
    2159           0 :                 sColor.c1 = (short)0;
    2160           0 :                 sColor.c2 = (short)0;
    2161           0 :                 sColor.c3 = (short)0;
    2162           0 :                 sColor.c4 = (short)255;
    2163           0 :                 poCT->SetColorEntry(iEntry, &sColor);
    2164             :             }
    2165             : 
    2166           0 :             if (iName != -1)
    2167           0 :                 papszNames = CSLAddString(papszNames, "");
    2168             :         }
    2169             :     }
    2170             : 
    2171             :     // ----------------------------------------------------------
    2172             :     // Set Color Table
    2173             :     // ----------------------------------------------------------
    2174             : 
    2175           0 :     if (poCT)
    2176             :     {
    2177           0 :         SetColorTable(poCT);
    2178           0 :         delete poCT;
    2179             :     }
    2180             : 
    2181             :     // ----------------------------------------------------------
    2182             :     // Update Category Names
    2183             :     // ----------------------------------------------------------
    2184             : 
    2185           0 :     if (papszNames)
    2186             :     {
    2187           0 :         SetCategoryNames(papszNames);
    2188           0 :         CSLDestroy(papszNames);
    2189             :     }
    2190             : 
    2191             :     // ----------------------------------------------------------
    2192             :     // Update Attribute Table
    2193             :     // ----------------------------------------------------------
    2194             : 
    2195           0 :     if (poDefaultRAT)
    2196             :     {
    2197           0 :         delete poDefaultRAT;
    2198             :     }
    2199             : 
    2200           0 :     poDefaultRAT = poRAT->Clone();
    2201             : 
    2202           0 :     return CE_None;
    2203             : }
    2204             : 
    2205             : /************************************************************************/
    2206             : /*                           GetDefaultRAT()                            */
    2207             : /************************************************************************/
    2208             : 
    2209           0 : GDALRasterAttributeTable *IdrisiRasterBand::GetDefaultRAT()
    2210             : {
    2211           0 :     IdrisiDataset *poGDS = cpl::down_cast<IdrisiDataset *>(poDS);
    2212             : 
    2213           0 :     if (poGDS->papszCategories == nullptr)
    2214             :     {
    2215           0 :         return nullptr;
    2216             :     }
    2217             : 
    2218           0 :     bool bHasColorTable = poGDS->poColorTable->GetColorEntryCount() > 0;
    2219             : 
    2220             :     // ----------------------------------------------------------
    2221             :     // Create the bands Attribute Table
    2222             :     // ----------------------------------------------------------
    2223             : 
    2224           0 :     if (poDefaultRAT)
    2225             :     {
    2226           0 :         delete poDefaultRAT;
    2227             :     }
    2228             : 
    2229           0 :     poDefaultRAT = new GDALDefaultRasterAttributeTable();
    2230             : 
    2231             :     // ----------------------------------------------------------
    2232             :     // Create (Value, Red, Green, Blue, Alpha, Class_Name) fields
    2233             :     // ----------------------------------------------------------
    2234             : 
    2235           0 :     poDefaultRAT->CreateColumn("Value", GFT_Integer, GFU_Generic);
    2236           0 :     poDefaultRAT->CreateColumn("Value_1", GFT_Integer, GFU_MinMax);
    2237             : 
    2238           0 :     if (bHasColorTable)
    2239             :     {
    2240           0 :         poDefaultRAT->CreateColumn("Red", GFT_Integer, GFU_Red);
    2241           0 :         poDefaultRAT->CreateColumn("Green", GFT_Integer, GFU_Green);
    2242           0 :         poDefaultRAT->CreateColumn("Blue", GFT_Integer, GFU_Blue);
    2243           0 :         poDefaultRAT->CreateColumn("Alpha", GFT_Integer, GFU_Alpha);
    2244             :     }
    2245           0 :     poDefaultRAT->CreateColumn("Class_name", GFT_String, GFU_Name);
    2246             : 
    2247             :     // ----------------------------------------------------------
    2248             :     // Loop through the Category Names.
    2249             :     // ----------------------------------------------------------
    2250             : 
    2251             :     GDALColorEntry sEntry;
    2252           0 :     int iName = poDefaultRAT->GetColOfUsage(GFU_Name);
    2253           0 :     int nEntryCount = CSLCount(poGDS->papszCategories);
    2254           0 :     int iRows = 0;
    2255             : 
    2256           0 :     for (int iEntry = 0; iEntry < nEntryCount; iEntry++)
    2257             :     {
    2258           0 :         if (EQUAL(poGDS->papszCategories[iEntry], ""))
    2259             :         {
    2260           0 :             continue;  // Eliminate the empty ones
    2261             :         }
    2262           0 :         poDefaultRAT->SetRowCount(poDefaultRAT->GetRowCount() + 1);
    2263           0 :         poDefaultRAT->SetValue(iRows, 0, iEntry);
    2264           0 :         poDefaultRAT->SetValue(iRows, 1, iEntry);
    2265           0 :         if (bHasColorTable)
    2266             :         {
    2267           0 :             poGDS->poColorTable->GetColorEntryAsRGB(iEntry, &sEntry);
    2268           0 :             poDefaultRAT->SetValue(iRows, 2, sEntry.c1);
    2269           0 :             poDefaultRAT->SetValue(iRows, 3, sEntry.c2);
    2270           0 :             poDefaultRAT->SetValue(iRows, 4, sEntry.c3);
    2271           0 :             poDefaultRAT->SetValue(iRows, 5, sEntry.c4);
    2272             :         }
    2273           0 :         poDefaultRAT->SetValue(iRows, iName, poGDS->papszCategories[iEntry]);
    2274           0 :         iRows++;
    2275             :     }
    2276             : 
    2277           0 :     return poDefaultRAT;
    2278             : }
    2279             : 
    2280             : /************************************************************************/
    2281             : /*                       IdrisiGeoReference2Wkt()                       */
    2282             : /************************************************************************/
    2283             : 
    2284             : /***
    2285             :  * Converts Idrisi geographic reference information to OpenGIS WKT.
    2286             :  *
    2287             :  * The Idrisi metadata file contain two fields that describe the
    2288             :  * geographic reference, RefSystem and RefUnit.
    2289             :  *
    2290             :  * RefSystem can contains the world "plane" or the name of a georeference
    2291             :  * file <refsystem>.ref that details the geographic reference
    2292             :  * system( coordinate system and projection parameters ). RefUnits
    2293             :  * indicates the unit of the image bounds.
    2294             :  *
    2295             :  * The georeference files are generally located in the product installation
    2296             :  * folder $IDRISIDIR\Georef, but they are first looked for in the same
    2297             :  * folder as the data file.
    2298             :  *
    2299             :  * If a Reference system names can be recognized by a name convention
    2300             :  * it will be interpreted without the need to read the georeference file.
    2301             :  * That includes "latlong" and all the UTM and State Plane zones.
    2302             :  *
    2303             :  * RefSystem "latlong" means that the data is not project and the coordinate
    2304             :  * system is WGS84. RefSystem "plane" means that the there is no coordinate
    2305             :  * system but the it is possible to calculate areas and distance by looking
    2306             :  * at the RefUnits.
    2307             :  *
    2308             :  * If the environment variable IDRISIDIR is not set and the georeference file
    2309             :  * need to be read then the projection string will result as unknown.
    2310             :  ***/
    2311             : 
    2312           4 : CPLErr IdrisiGeoReference2Wkt(const char *pszFilename, const char *pszRefSystem,
    2313             :                               const char *pszRefUnits,
    2314             :                               OGRSpatialReference &oSRS)
    2315             : {
    2316             :     // ---------------------------------------------------------
    2317             :     //  Plane
    2318             :     // ---------------------------------------------------------
    2319             : 
    2320           4 :     if (EQUAL(pszRefSystem, rstPLANE))
    2321             :     {
    2322           0 :         oSRS.SetLocalCS("Plane");
    2323           0 :         int nUnit = GetUnitIndex(pszRefUnits);
    2324           0 :         if (nUnit > -1)
    2325             :         {
    2326           0 :             int nDeft = aoLinearUnitsConv[nUnit].nDefaultG;
    2327           0 :             oSRS.SetLinearUnits(aoLinearUnitsConv[nDeft].pszName,
    2328           0 :                                 aoLinearUnitsConv[nDeft].dfConv);
    2329             :         }
    2330           0 :         return CE_None;
    2331             :     }
    2332             : 
    2333             :     // ---------------------------------------------------------
    2334             :     //  Latlong
    2335             :     // ---------------------------------------------------------
    2336             : 
    2337           4 :     if (EQUAL(pszRefSystem, rstLATLONG) || EQUAL(pszRefSystem, rstLATLONG2))
    2338             :     {
    2339           1 :         oSRS.SetWellKnownGeogCS("WGS84");
    2340           1 :         return CE_None;
    2341             :     }
    2342             : 
    2343             :     // ---------------------------------------------------------
    2344             :     //  Prepare for scanning in lower case
    2345             :     // ---------------------------------------------------------
    2346             : 
    2347           3 :     char *pszRefSystemLower = CPLStrdup(pszRefSystem);
    2348           3 :     CPLStrlwr(pszRefSystemLower);
    2349             : 
    2350             :     // ---------------------------------------------------------
    2351             :     //  UTM naming convention( ex.: utm-30n )
    2352             :     // ---------------------------------------------------------
    2353             : 
    2354           3 :     if (EQUALN(pszRefSystem, rstUTM, 3))
    2355             :     {
    2356             :         int nZone;
    2357             :         char cNorth;
    2358           3 :         sscanf(pszRefSystemLower, rstUTM, &nZone, &cNorth);
    2359           3 :         oSRS.SetWellKnownGeogCS("WGS84");
    2360           3 :         oSRS.SetUTM(nZone, (cNorth == 'n'));
    2361           3 :         CPLFree(pszRefSystemLower);
    2362           3 :         return CE_None;
    2363             :     }
    2364             : 
    2365             :     // ---------------------------------------------------------
    2366             :     //  State Plane naming convention( ex.: spc83ma1 )
    2367             :     // ---------------------------------------------------------
    2368             : 
    2369           0 :     if (EQUALN(pszRefSystem, rstSPC, 3))
    2370             :     {
    2371             :         int nNAD;
    2372             :         int nZone;
    2373             :         char szState[3];
    2374           0 :         sscanf(pszRefSystemLower, rstSPC, &nNAD, szState, &nZone);
    2375           0 :         int nSPCode = GetStateCode(szState);
    2376           0 :         if (nSPCode != -1)
    2377             :         {
    2378           0 :             nZone = (nZone == 1 ? nSPCode : nSPCode + nZone - 1);
    2379             : 
    2380           0 :             if (oSRS.SetStatePlane(nZone, (nNAD == 83)) != OGRERR_FAILURE)
    2381             :             {
    2382           0 :                 CPLFree(pszRefSystemLower);
    2383           0 :                 return CE_None;
    2384             :             }
    2385             : 
    2386             :             // ----------------------------------------------------------
    2387             :             //  If SetStatePlane fails, set GeoCS as NAD Datum and let it
    2388             :             //  try to read the projection info from georeference file( * )
    2389             :             // ----------------------------------------------------------
    2390             : 
    2391           0 :             oSRS.SetWellKnownGeogCS(CPLSPrintf("NAD%d", nNAD));
    2392             :         }
    2393             :     }
    2394             : 
    2395           0 :     CPLFree(pszRefSystemLower);
    2396           0 :     pszRefSystemLower = nullptr;
    2397             : 
    2398             :     // ------------------------------------------------------------------
    2399             :     //  Search for georeference file <RefSystem>.ref
    2400             :     // ------------------------------------------------------------------
    2401             : 
    2402             :     const char *pszFName =
    2403           0 :         CPLSPrintf("%s%c%s.ref", CPLGetDirnameSafe(pszFilename).c_str(),
    2404             :                    PATHDELIM, pszRefSystem);
    2405             : 
    2406           0 :     if (!FileExists(pszFName))
    2407             :     {
    2408             :         // ------------------------------------------------------------------
    2409             :         //  Look at $IDRISIDIR\Georef\<RefSystem>.ref
    2410             :         // ------------------------------------------------------------------
    2411             : 
    2412           0 :         const char *pszIdrisiDir = CPLGetConfigOption("IDRISIDIR", nullptr);
    2413             : 
    2414           0 :         if ((pszIdrisiDir) != nullptr)
    2415             :         {
    2416           0 :             pszFName = CPLSPrintf("%s%cgeoref%c%s.ref", pszIdrisiDir, PATHDELIM,
    2417             :                                   PATHDELIM, pszRefSystem);
    2418             :         }
    2419             :     }
    2420             : 
    2421             :     // ------------------------------------------------------------------
    2422             :     //  Cannot find georeference file
    2423             :     // ------------------------------------------------------------------
    2424             : 
    2425           0 :     if (!FileExists(pszFName))
    2426             :     {
    2427           0 :         CPLDebug("RST", "Cannot find Idrisi georeference file %s",
    2428             :                  pszRefSystem);
    2429             : 
    2430           0 :         if (oSRS.IsGeographic() == FALSE) /* see State Plane remarks( * ) */
    2431             :         {
    2432           0 :             oSRS.SetLocalCS("Unknown");
    2433           0 :             int nUnit = GetUnitIndex(pszRefUnits);
    2434           0 :             if (nUnit > -1)
    2435             :             {
    2436           0 :                 int nDeft = aoLinearUnitsConv[nUnit].nDefaultG;
    2437           0 :                 oSRS.SetLinearUnits(aoLinearUnitsConv[nDeft].pszName,
    2438           0 :                                     aoLinearUnitsConv[nDeft].dfConv);
    2439             :             }
    2440             :         }
    2441           0 :         return CE_Failure;
    2442             :     }
    2443             : 
    2444             :     // ------------------------------------------------------------------
    2445             :     //  Read values from georeference file
    2446             :     // ------------------------------------------------------------------
    2447             : 
    2448           0 :     char **papszRef = CSLLoad(pszFName);
    2449           0 :     myCSLSetNameValueSeparator(papszRef, ":");
    2450             : 
    2451           0 :     char *pszGeorefName = nullptr;
    2452             : 
    2453           0 :     const char *pszREF_SYSTEM = myCSLFetchNameValue(papszRef, refREF_SYSTEM);
    2454           0 :     if (pszREF_SYSTEM != nullptr && EQUAL(pszREF_SYSTEM, "") == FALSE)
    2455             :     {
    2456           0 :         pszGeorefName = CPLStrdup(pszREF_SYSTEM);
    2457             :     }
    2458             :     else
    2459             :     {
    2460             :         pszGeorefName =
    2461           0 :             CPLStrdup(myCSLFetchNameValue(papszRef, refREF_SYSTEM2));
    2462             :     }
    2463           0 :     char *pszProjName = CPLStrdup(myCSLFetchNameValue(papszRef, refPROJECTION));
    2464           0 :     char *pszDatum = CPLStrdup(myCSLFetchNameValue(papszRef, refDATUM));
    2465           0 :     char *pszEllipsoid = CPLStrdup(myCSLFetchNameValue(papszRef, refELLIPSOID));
    2466             :     const double dfCenterLat =
    2467           0 :         CPLAtof_nz(myCSLFetchNameValue(papszRef, refORIGIN_LAT));
    2468             :     const double dfCenterLong =
    2469           0 :         CPLAtof_nz(myCSLFetchNameValue(papszRef, refORIGIN_LONG));
    2470             :     const double dfSemiMajor =
    2471           0 :         CPLAtof_nz(myCSLFetchNameValue(papszRef, refMAJOR_SAX));
    2472             :     const double dfSemiMinor =
    2473           0 :         CPLAtof_nz(myCSLFetchNameValue(papszRef, refMINOR_SAX));
    2474             :     const double dfFalseEasting =
    2475           0 :         CPLAtof_nz(myCSLFetchNameValue(papszRef, refORIGIN_X));
    2476             :     const double dfFalseNorthing =
    2477           0 :         CPLAtof_nz(myCSLFetchNameValue(papszRef, refORIGIN_Y));
    2478             :     const double dfStdP1 =
    2479           0 :         CPLAtof_nz(myCSLFetchNameValue(papszRef, refSTANDL_1));
    2480             :     const double dfStdP2 =
    2481           0 :         CPLAtof_nz(myCSLFetchNameValue(papszRef, refSTANDL_2));
    2482             :     double dfScale;
    2483           0 :     double adfToWGS84[3] = {0.0, 0.0, 0.0};
    2484             : 
    2485           0 :     const char *pszToWGS84 = myCSLFetchNameValue(papszRef, refDELTA_WGS84);
    2486           0 :     if (pszToWGS84)
    2487           0 :         CPLsscanf(pszToWGS84, "%lf %lf %lf", &adfToWGS84[0], &adfToWGS84[1],
    2488             :                   &adfToWGS84[2]);
    2489             : 
    2490           0 :     const char *pszSCALE_FAC = myCSLFetchNameValue(papszRef, refSCALE_FAC);
    2491           0 :     if (pszSCALE_FAC == nullptr || EQUAL(pszSCALE_FAC, "na"))
    2492           0 :         dfScale = 1.0;
    2493             :     else
    2494           0 :         dfScale = CPLAtof_nz(pszSCALE_FAC);
    2495             : 
    2496           0 :     CSLDestroy(papszRef);
    2497             : 
    2498             :     // ----------------------------------------------------------------------
    2499             :     //  Set the Geographic Coordinate System
    2500             :     // ----------------------------------------------------------------------
    2501             : 
    2502           0 :     if (oSRS.IsGeographic() == FALSE) /* see State Plane remarks(*) */
    2503             :     {
    2504           0 :         int nEPSG = 0;
    2505             : 
    2506             :         // ----------------------------------------------------------------------
    2507             :         //  Is it a WGS84 equivalent?
    2508             :         // ----------------------------------------------------------------------
    2509             : 
    2510           0 :         if ((STARTS_WITH_CI(pszEllipsoid, "WGS")) &&
    2511           0 :             (strstr(pszEllipsoid, "84")) && (STARTS_WITH_CI(pszDatum, "WGS")) &&
    2512           0 :             (strstr(pszDatum, "84")) && (adfToWGS84[0] == 0.0) &&
    2513           0 :             (adfToWGS84[1] == 0.0) && (adfToWGS84[2] == 0.0))
    2514             :         {
    2515           0 :             nEPSG = 4326;
    2516             :         }
    2517             : 
    2518             :         // ----------------------------------------------------------------------
    2519             :         //  Match GCS's DATUM_NAME by using 'ApproxString' over Datum
    2520             :         // ----------------------------------------------------------------------
    2521             : 
    2522           0 :         if (nEPSG == 0)
    2523             :         {
    2524           0 :             const PJ_TYPE nObjType = PJ_TYPE_GEODETIC_REFERENCE_FRAME;
    2525             :             auto datumList =
    2526           0 :                 proj_create_from_name(OSRGetProjTLSContext(), "EPSG", pszDatum,
    2527             :                                       &nObjType, 1, true, 1, nullptr);
    2528           0 :             if (datumList && proj_list_get_count(datumList) == 1)
    2529             :             {
    2530             :                 auto datum =
    2531           0 :                     proj_list_get(OSRGetProjTLSContext(), datumList, 0);
    2532           0 :                 if (datum)
    2533             :                 {
    2534           0 :                     const char *datumCode = proj_get_id_code(datum, 0);
    2535           0 :                     if (datumCode)
    2536             :                     {
    2537           0 :                         auto crsList = proj_query_geodetic_crs_from_datum(
    2538             :                             OSRGetProjTLSContext(), "EPSG", "EPSG", datumCode,
    2539             :                             "geographic 2D");
    2540           0 :                         if (crsList && proj_list_get_count(crsList) != 0)
    2541             :                         {
    2542           0 :                             auto crs = proj_list_get(OSRGetProjTLSContext(),
    2543             :                                                      crsList, 0);
    2544           0 :                             if (crs)
    2545             :                             {
    2546           0 :                                 const char *crsCode = proj_get_id_code(crs, 0);
    2547           0 :                                 if (crsCode)
    2548             :                                 {
    2549           0 :                                     nEPSG = atoi(crsCode);
    2550             :                                 }
    2551           0 :                                 proj_destroy(crs);
    2552             :                             }
    2553             :                         }
    2554           0 :                         proj_list_destroy(crsList);
    2555             :                     }
    2556           0 :                     proj_destroy(datum);
    2557             :                 }
    2558             :             }
    2559           0 :             proj_list_destroy(datumList);
    2560             :         }
    2561             : 
    2562             :         // ----------------------------------------------------------------------
    2563             :         //  Match GCS's COORD_REF_SYS_NAME by using 'ApproxString' over Datum
    2564             :         // ----------------------------------------------------------------------
    2565             : 
    2566           0 :         if (nEPSG == 0)
    2567             :         {
    2568           0 :             const PJ_TYPE nObjType = PJ_TYPE_GEOGRAPHIC_2D_CRS;
    2569             :             auto crsList =
    2570           0 :                 proj_create_from_name(OSRGetProjTLSContext(), "EPSG", pszDatum,
    2571             :                                       &nObjType, 1, true, 1, nullptr);
    2572           0 :             if (crsList && proj_list_get_count(crsList) != 0)
    2573             :             {
    2574           0 :                 auto crs = proj_list_get(OSRGetProjTLSContext(), crsList, 0);
    2575           0 :                 if (crs)
    2576             :                 {
    2577           0 :                     const char *crsCode = proj_get_id_code(crs, 0);
    2578           0 :                     if (crsCode)
    2579             :                     {
    2580           0 :                         nEPSG = atoi(crsCode);
    2581             :                     }
    2582           0 :                     proj_destroy(crs);
    2583             :                 }
    2584             :             }
    2585           0 :             proj_list_destroy(crsList);
    2586             :         }
    2587             : 
    2588           0 :         if (nEPSG != 0)
    2589             :         {
    2590           0 :             oSRS.importFromEPSG(nEPSG);
    2591             :         }
    2592             :         else
    2593             :         {
    2594             :             // --------------------------------------------------
    2595             :             //  Create GeogCS based on the georeference file info
    2596             :             // --------------------------------------------------
    2597             : 
    2598           0 :             oSRS.SetGeogCS(pszRefSystem, pszDatum, pszEllipsoid, dfSemiMajor,
    2599             :                            (dfSemiMinor == dfSemiMajor)
    2600             :                                ? 0.0
    2601           0 :                                : (-1.0 / (dfSemiMinor / dfSemiMajor - 1.0)));
    2602             :         }
    2603             : 
    2604             :         // ----------------------------------------------------------------------
    2605             :         //  Note: That will override EPSG info:
    2606             :         // ----------------------------------------------------------------------
    2607             : 
    2608           0 :         oSRS.SetTOWGS84(adfToWGS84[0], adfToWGS84[1], adfToWGS84[2]);
    2609             :     }
    2610             : 
    2611             :     // ----------------------------------------------------------------------
    2612             :     //  If the georeference file tells that it is a non project system:
    2613             :     // ----------------------------------------------------------------------
    2614             : 
    2615           0 :     if (EQUAL(pszProjName, "none"))
    2616             :     {
    2617           0 :         CPLFree(pszGeorefName);
    2618           0 :         CPLFree(pszProjName);
    2619           0 :         CPLFree(pszDatum);
    2620           0 :         CPLFree(pszEllipsoid);
    2621             : 
    2622           0 :         return CE_None;
    2623             :     }
    2624             : 
    2625             :     // ----------------------------------------------------------------------
    2626             :     //  Create Projection information based on georeference file info
    2627             :     // ----------------------------------------------------------------------
    2628             : 
    2629             :     //  Idrisi user's Manual,   Supported Projection:
    2630             :     //
    2631             :     //      Mercator
    2632             :     //      Transverse Mercator
    2633             :     //      Gauss-Kruger
    2634             :     //      Lambert Conformal Conic
    2635             :     //      Plate Carree
    2636             :     //      Hammer Aitoff
    2637             :     //      Lambert North Polar Azimuthal Equal Area
    2638             :     //      Lambert South Polar Azimuthal Equal Area
    2639             :     //      Lambert Transverse Azimuthal Equal Area
    2640             :     //      Lambert Oblique Polar Azimuthal Equal Area
    2641             :     //      North Polar Stereographic
    2642             :     //      South Polar Stereographic
    2643             :     //      Transverse Stereographic
    2644             :     //      Oblique Stereographic
    2645             :     //      Albers Equal Area Conic
    2646             :     //      Sinusoidal
    2647             :     //      Cylindrical Equal Area
    2648             : 
    2649           0 :     if (EQUAL(pszProjName, "Mercator"))
    2650             :     {
    2651           0 :         oSRS.SetMercator(dfCenterLat, dfCenterLong, dfScale, dfFalseEasting,
    2652             :                          dfFalseNorthing);
    2653             :     }
    2654           0 :     else if (EQUAL(pszProjName, "Transverse Mercator"))
    2655             :     {
    2656           0 :         oSRS.SetTM(dfCenterLat, dfCenterLong, dfScale, dfFalseEasting,
    2657             :                    dfFalseNorthing);
    2658             :     }
    2659           0 :     else if (EQUAL(pszProjName, "Gauss-Kruger"))
    2660             :     {
    2661           0 :         oSRS.SetTM(dfCenterLat, dfCenterLong, dfScale, dfFalseEasting,
    2662             :                    dfFalseNorthing);
    2663             :     }
    2664           0 :     else if (EQUAL(pszProjName, "Lambert Conformal Conic"))
    2665             :     {
    2666           0 :         oSRS.SetLCC(dfStdP1, dfStdP2, dfCenterLat, dfCenterLong, dfFalseEasting,
    2667             :                     dfFalseNorthing);
    2668             :     }
    2669           0 :     else if (EQUAL(pszProjName, "Plate Carr"
    2670             :                                 "\xE9"
    2671             :                                 "e")) /* 'eacute' in ISO-8859-1 */
    2672             :     {
    2673           0 :         oSRS.SetEquirectangular(dfCenterLat, dfCenterLong, dfFalseEasting,
    2674             :                                 dfFalseNorthing);
    2675             :     }
    2676           0 :     else if (EQUAL(pszProjName, "Hammer Aitoff"))
    2677             :     {
    2678           0 :         oSRS.SetProjection(pszProjName);
    2679           0 :         oSRS.SetProjParm(SRS_PP_LATITUDE_OF_ORIGIN, dfCenterLat);
    2680           0 :         oSRS.SetProjParm(SRS_PP_CENTRAL_MERIDIAN, dfCenterLong);
    2681           0 :         oSRS.SetProjParm(SRS_PP_FALSE_EASTING, dfFalseEasting);
    2682           0 :         oSRS.SetProjParm(SRS_PP_FALSE_NORTHING, dfFalseNorthing);
    2683             :     }
    2684           0 :     else if (EQUAL(pszProjName, "Lambert North Polar Azimuthal Equal Area") ||
    2685           0 :              EQUAL(pszProjName, "Lambert South Polar Azimuthal Equal Area") ||
    2686           0 :              EQUAL(pszProjName, "Lambert Transverse Azimuthal Equal Area") ||
    2687           0 :              EQUAL(pszProjName, "Lambert Oblique Polar Azimuthal Equal Area"))
    2688             :     {
    2689           0 :         oSRS.SetLAEA(dfCenterLat, dfCenterLong, dfFalseEasting,
    2690             :                      dfFalseNorthing);
    2691             :     }
    2692           0 :     else if (EQUAL(pszProjName, "North Polar Stereographic") ||
    2693           0 :              EQUAL(pszProjName, "South Polar Stereographic"))
    2694             :     {
    2695           0 :         oSRS.SetPS(dfCenterLat, dfCenterLong, dfScale, dfFalseEasting,
    2696             :                    dfFalseNorthing);
    2697             :     }
    2698           0 :     else if (EQUAL(pszProjName, "Transverse Stereographic"))
    2699             :     {
    2700           0 :         oSRS.SetStereographic(dfCenterLat, dfCenterLong, dfScale,
    2701             :                               dfFalseEasting, dfFalseNorthing);
    2702             :     }
    2703           0 :     else if (EQUAL(pszProjName, "Oblique Stereographic"))
    2704             :     {
    2705           0 :         oSRS.SetOS(dfCenterLat, dfCenterLong, dfScale, dfFalseEasting,
    2706             :                    dfFalseNorthing);
    2707             :     }
    2708           0 :     else if (EQUAL(pszProjName, "Alber's Equal Area Conic") ||
    2709           0 :              EQUAL(pszProjName, "Albers Equal Area Conic"))
    2710             :     {
    2711           0 :         oSRS.SetACEA(dfStdP1, dfStdP2, dfCenterLat, dfCenterLong,
    2712             :                      dfFalseEasting, dfFalseNorthing);
    2713             :     }
    2714           0 :     else if (EQUAL(pszProjName, "Sinusoidal"))
    2715             :     {
    2716           0 :         oSRS.SetSinusoidal(dfCenterLong, dfFalseEasting, dfFalseNorthing);
    2717             :     }
    2718           0 :     else if (EQUAL(pszProjName, "CylindricalEA") ||
    2719           0 :              EQUAL(pszProjName, "Cylindrical Equal Area"))
    2720             :     {
    2721           0 :         oSRS.SetCEA(dfStdP1, dfCenterLong, dfFalseEasting, dfFalseNorthing);
    2722             :     }
    2723             :     else
    2724             :     {
    2725           0 :         CPLError(
    2726             :             CE_Warning, CPLE_NotSupported,
    2727             :             "Projection not listed on Idrisi User's Manual( v.15.0/2005 ).\n\t"
    2728             :             "[\"%s\" in georeference file \"%s\"]",
    2729             :             pszProjName, pszFName);
    2730           0 :         oSRS.Clear();
    2731             : 
    2732           0 :         CPLFree(pszGeorefName);
    2733           0 :         CPLFree(pszProjName);
    2734           0 :         CPLFree(pszDatum);
    2735           0 :         CPLFree(pszEllipsoid);
    2736             : 
    2737           0 :         return CE_Warning;
    2738             :     }
    2739             : 
    2740             :     // ----------------------------------------------------------------------
    2741             :     //  Set the Linear Units
    2742             :     // ----------------------------------------------------------------------
    2743             : 
    2744           0 :     int nUnit = GetUnitIndex(pszRefUnits);
    2745           0 :     if (nUnit > -1)
    2746             :     {
    2747           0 :         int nDeft = aoLinearUnitsConv[nUnit].nDefaultG;
    2748           0 :         oSRS.SetLinearUnits(aoLinearUnitsConv[nDeft].pszName,
    2749           0 :                             aoLinearUnitsConv[nDeft].dfConv);
    2750             :     }
    2751             :     else
    2752             :     {
    2753           0 :         oSRS.SetLinearUnits("unknown", 1.0);
    2754             :     }
    2755             : 
    2756             :     // ----------------------------------------------------------------------
    2757             :     //  Name ProjCS with the name on the georeference file
    2758             :     // ----------------------------------------------------------------------
    2759             : 
    2760           0 :     oSRS.SetProjCS(pszGeorefName);
    2761             : 
    2762           0 :     CPLFree(pszGeorefName);
    2763           0 :     CPLFree(pszProjName);
    2764           0 :     CPLFree(pszDatum);
    2765           0 :     CPLFree(pszEllipsoid);
    2766             : 
    2767           0 :     return CE_None;
    2768             : }
    2769             : 
    2770             : /************************************************************************/
    2771             : /*                        Wkt2GeoReference()                            */
    2772             : /************************************************************************/
    2773             : 
    2774             : /***
    2775             :  * Converts OpenGIS WKT to Idrisi geographic reference information.
    2776             :  *
    2777             :  * That function will fill up the two parameters RefSystem and RefUnit
    2778             :  * that goes into the Idrisi metadata. But it could also create
    2779             :  * a accompanying georeference file to the output if necessary.
    2780             :  *
    2781             :  * First it will try to identify the ProjString as Local, WGS84 or
    2782             :  * one of the Idrisi name convention reference systems
    2783             :  * otherwise, if the projection system is supported by Idrisi,
    2784             :  * it will create a accompanying georeference files.
    2785             :  ***/
    2786             : 
    2787          13 : CPLErr IdrisiDataset::Wkt2GeoReference(const OGRSpatialReference &oSRS,
    2788             :                                        char **pszRefSystem, char **pszRefUnit)
    2789             : {
    2790             :     // -----------------------------------------------------
    2791             :     //  Plane with default "Meters"
    2792             :     // -----------------------------------------------------
    2793             : 
    2794          13 :     if (oSRS.IsEmpty())
    2795             :     {
    2796           0 :         *pszRefSystem = CPLStrdup(rstPLANE);
    2797           0 :         *pszRefUnit = CPLStrdup(rstMETER);
    2798           0 :         return CE_None;
    2799             :     }
    2800             : 
    2801             :     // -----------------------------------------------------
    2802             :     //  Local => Plane + Linear Unit
    2803             :     // -----------------------------------------------------
    2804             : 
    2805          13 :     if (oSRS.IsLocal())
    2806             :     {
    2807           0 :         *pszRefSystem = CPLStrdup(rstPLANE);
    2808           0 :         *pszRefUnit = GetUnitDefault(oSRS.GetAttrValue("UNIT"),
    2809             :                                      CPLSPrintf("%f", oSRS.GetLinearUnits()));
    2810           0 :         return CE_None;
    2811             :     }
    2812             : 
    2813             :     // -----------------------------------------------------
    2814             :     //  Test to identify WGS84 => Latlong + Angular Unit
    2815             :     // -----------------------------------------------------
    2816             : 
    2817          13 :     if (oSRS.IsGeographic())
    2818             :     {
    2819          13 :         char *pszSpheroid = CPLStrdup(oSRS.GetAttrValue("SPHEROID"));
    2820          13 :         char *pszAuthName = CPLStrdup(oSRS.GetAuthorityName("GEOGCS"));
    2821          13 :         char *pszDatum = CPLStrdup(oSRS.GetAttrValue("DATUM"));
    2822          13 :         int nGCSCode = -1;
    2823          13 :         if (EQUAL(pszAuthName, "EPSG"))
    2824             :         {
    2825           1 :             nGCSCode = atoi(oSRS.GetAuthorityCode("GEOGCS"));
    2826             :         }
    2827          13 :         if ((nGCSCode == 4326) ||
    2828          12 :             ((STARTS_WITH_CI(pszSpheroid, "WGS")) &&
    2829          12 :              (strstr(pszSpheroid, "84")) && (STARTS_WITH_CI(pszDatum, "WGS")) &&
    2830          12 :              (strstr(pszDatum, "84"))))
    2831             :         {
    2832          13 :             *pszRefSystem = CPLStrdup(rstLATLONG);
    2833          13 :             *pszRefUnit = CPLStrdup(rstDEGREE);
    2834             : 
    2835          13 :             CPLFree(pszSpheroid);
    2836          13 :             CPLFree(pszAuthName);
    2837          13 :             CPLFree(pszDatum);
    2838             : 
    2839          13 :             return CE_None;
    2840             :         }
    2841             : 
    2842           0 :         CPLFree(pszSpheroid);
    2843           0 :         CPLFree(pszAuthName);
    2844           0 :         CPLFree(pszDatum);
    2845             :     }
    2846             : 
    2847             :     // -----------------------------------------------------
    2848             :     //  Prepare to match some projections
    2849             :     // -----------------------------------------------------
    2850             : 
    2851           0 :     const char *pszProjName = oSRS.GetAttrValue("PROJECTION");
    2852             : 
    2853           0 :     if (pszProjName == nullptr)
    2854             :     {
    2855           0 :         pszProjName = "";
    2856             :     }
    2857             : 
    2858             :     // -----------------------------------------------------
    2859             :     //  Check for UTM zones
    2860             :     // -----------------------------------------------------
    2861             : 
    2862           0 :     if (EQUAL(pszProjName, SRS_PT_TRANSVERSE_MERCATOR))
    2863             :     {
    2864           0 :         int nZone = oSRS.GetUTMZone();
    2865             : 
    2866           0 :         if ((nZone != 0) && (EQUAL(oSRS.GetAttrValue("DATUM"), SRS_DN_WGS84)))
    2867             :         {
    2868           0 :             double dfNorth = oSRS.GetProjParm(SRS_PP_FALSE_NORTHING);
    2869           0 :             *pszRefSystem = CPLStrdup(
    2870             :                 CPLSPrintf(rstUTM, nZone, (dfNorth == 0.0 ? 'n' : 's')));
    2871           0 :             *pszRefUnit = CPLStrdup(rstMETER);
    2872           0 :             return CE_None;
    2873             :         }
    2874             :     }
    2875             : 
    2876             :     // -----------------------------------------------------
    2877             :     //  Check for State Plane
    2878             :     // -----------------------------------------------------
    2879             : 
    2880           0 :     if (EQUAL(pszProjName, SRS_PT_LAMBERT_CONFORMAL_CONIC_2SP) ||
    2881           0 :         EQUAL(pszProjName, SRS_PT_TRANSVERSE_MERCATOR))
    2882             :     {
    2883           0 :         CPLString osPCSCode;
    2884           0 :         const char *pszID = oSRS.GetAuthorityCode("PROJCS");
    2885           0 :         if (pszID != nullptr && strlen(pszID) > 0)
    2886             :         {
    2887             :             const char *pszPCSCode =
    2888           0 :                 CSVGetField(CSVFilename("stateplane.csv"), "EPSG_PCS_CODE",
    2889             :                             pszID, CC_Integer, "ID");
    2890           0 :             osPCSCode = (pszPCSCode) ? pszPCSCode : "";
    2891           0 :             if (!osPCSCode.empty())
    2892             :             {
    2893           0 :                 int nZone = osPCSCode.back() - '0';
    2894           0 :                 int nSPCode = atoi(osPCSCode);
    2895             : 
    2896           0 :                 if (nZone == 0)
    2897           0 :                     nZone = 1;
    2898             :                 else
    2899           0 :                     nSPCode = nSPCode - nZone + 1;
    2900             : 
    2901           0 :                 int nNADYear = 83;
    2902           0 :                 if (nSPCode > 10000)
    2903             :                 {
    2904           0 :                     nNADYear = 27;
    2905           0 :                     nSPCode -= 10000;
    2906             :                 }
    2907           0 :                 char *pszState = CPLStrdup(GetStateName(nSPCode));
    2908           0 :                 if (!EQUAL(pszState, ""))
    2909             :                 {
    2910           0 :                     *pszRefSystem = CPLStrdup(
    2911             :                         CPLSPrintf(rstSPC, nNADYear, pszState, nZone));
    2912           0 :                     *pszRefUnit =
    2913           0 :                         GetUnitDefault(oSRS.GetAttrValue("UNIT"),
    2914             :                                        CPLSPrintf("%f", oSRS.GetLinearUnits()));
    2915           0 :                     CPLFree(pszState);
    2916           0 :                     return CE_None;
    2917             :                 }
    2918           0 :                 CPLFree(pszState);
    2919             :             }
    2920             :         }  //
    2921             : 
    2922             :         // if EPSG code is missing, go to following steps to work with origin
    2923             : 
    2924           0 :         const char *pszNAD83 = "83";
    2925           0 :         const char *pszNAD27 = "27";
    2926           0 :         bool bIsOldNAD = false;
    2927             : 
    2928           0 :         const char *pszDatumValue = oSRS.GetAttrValue("DATUM", 0);
    2929           0 :         if ((strstr(pszDatumValue, pszNAD83) == nullptr) &&
    2930           0 :             (strstr(pszDatumValue, pszNAD27) != nullptr))
    2931             :             // strcpy(pszNAD, "27");
    2932           0 :             bIsOldNAD = true;
    2933             : 
    2934           0 :         if ((oSRS.FindProjParm("central_meridian", nullptr) != -1) &&
    2935           0 :             (oSRS.FindProjParm("latitude_of_origin", nullptr) != -1))
    2936             :         {
    2937           0 :             double dfLon = oSRS.GetProjParm("central_meridian");
    2938           0 :             double dfLat = oSRS.GetProjParm("latitude_of_origin");
    2939           0 :             dfLon = (int)(fabs(dfLon) * 100 + 0.5) / 100.0;
    2940           0 :             dfLat = (int)(fabs(dfLat) * 100 + 0.5) / 100.0;
    2941           0 :             *pszRefSystem = CPLStrdup(GetSpcs(dfLon, dfLat));
    2942             :         }
    2943             : 
    2944           0 :         if (*pszRefSystem != nullptr)
    2945             :         {
    2946             :             // Convert 83 TO 27
    2947           0 :             if (bIsOldNAD)
    2948             :             {
    2949             :                 char pszOutRefSystem[9];
    2950           0 :                 NAD83to27(pszOutRefSystem, *pszRefSystem);
    2951           0 :                 *pszRefSystem = CPLStrdup(pszOutRefSystem);
    2952             :             }
    2953           0 :             *pszRefUnit =
    2954           0 :                 GetUnitDefault(oSRS.GetAttrValue("UNIT"),
    2955             :                                CPLSPrintf("%f", oSRS.GetLinearUnits()));
    2956           0 :             return CE_None;
    2957             :         }
    2958             :     }
    2959             : 
    2960           0 :     const char *pszProjectionOut = nullptr;
    2961             : 
    2962           0 :     if (oSRS.IsProjected())
    2963             :     {
    2964             :         // ---------------------------------------------------------
    2965             :         //  Check for supported projections
    2966             :         // ---------------------------------------------------------
    2967             : 
    2968           0 :         if (EQUAL(pszProjName, SRS_PT_MERCATOR_1SP))
    2969             :         {
    2970           0 :             pszProjectionOut = "Mercator";
    2971             :         }
    2972           0 :         else if (EQUAL(pszProjName, SRS_PT_TRANSVERSE_MERCATOR))
    2973             :         {
    2974           0 :             pszProjectionOut = "Transverse Mercator";
    2975             :         }
    2976           0 :         else if (EQUAL(pszProjName, SRS_PT_LAMBERT_CONFORMAL_CONIC_2SP))
    2977             :         {
    2978           0 :             pszProjectionOut = "Lambert Conformal Conic";
    2979             :         }
    2980           0 :         else if (EQUAL(pszProjName, SRS_PT_EQUIRECTANGULAR))
    2981             :         {
    2982           0 :             pszProjectionOut = "Plate Carr"
    2983             :                                "\xE9"
    2984             :                                "e"; /* 'eacute' in ISO-8859-1 */
    2985             :         }
    2986           0 :         else if (EQUAL(pszProjName, SRS_PT_LAMBERT_AZIMUTHAL_EQUAL_AREA))
    2987             :         {
    2988             :             double dfCenterLat =
    2989           0 :                 oSRS.GetProjParm(SRS_PP_LATITUDE_OF_ORIGIN, 0.0, nullptr);
    2990           0 :             if (dfCenterLat == 0.0)
    2991           0 :                 pszProjectionOut = "Lambert Transverse Azimuthal Equal Area";
    2992           0 :             else if (fabs(dfCenterLat) == 90.0)
    2993           0 :                 pszProjectionOut = "Lambert Oblique Polar Azimuthal Equal Area";
    2994           0 :             else if (dfCenterLat > 0.0)
    2995           0 :                 pszProjectionOut = "Lambert North Oblique Azimuthal Equal Area";
    2996             :             else
    2997           0 :                 pszProjectionOut = "Lambert South Oblique Azimuthal Equal Area";
    2998             :         }
    2999           0 :         else if (EQUAL(pszProjName, SRS_PT_POLAR_STEREOGRAPHIC))
    3000             :         {
    3001           0 :             if (oSRS.GetProjParm(SRS_PP_LATITUDE_OF_ORIGIN, 0.0, nullptr) > 0)
    3002           0 :                 pszProjectionOut = "North Polar Stereographic";
    3003             :             else
    3004           0 :                 pszProjectionOut = "South Polar Stereographic";
    3005             :         }
    3006           0 :         else if (EQUAL(pszProjName, SRS_PT_STEREOGRAPHIC))
    3007             :         {
    3008           0 :             pszProjectionOut = "Transverse Stereographic";
    3009             :         }
    3010           0 :         else if (EQUAL(pszProjName, SRS_PT_OBLIQUE_STEREOGRAPHIC))
    3011             :         {
    3012           0 :             pszProjectionOut = "Oblique Stereographic";
    3013             :         }
    3014           0 :         else if (EQUAL(pszProjName, SRS_PT_SINUSOIDAL))
    3015             :         {
    3016           0 :             pszProjectionOut = "Sinusoidal";
    3017             :         }
    3018           0 :         else if (EQUAL(pszProjName, SRS_PT_ALBERS_CONIC_EQUAL_AREA))
    3019             :         {
    3020           0 :             pszProjectionOut = "Alber's Equal Area Conic";
    3021             :         }
    3022           0 :         else if (EQUAL(pszProjName, SRS_PT_CYLINDRICAL_EQUAL_AREA))
    3023             :         {
    3024           0 :             pszProjectionOut = "Cylindrical Equal Area";
    3025             :         }
    3026             : 
    3027             :         // ---------------------------------------------------------
    3028             :         //  Failure, Projection system not supported
    3029             :         // ---------------------------------------------------------
    3030             : 
    3031           0 :         if (pszProjectionOut == nullptr)
    3032             :         {
    3033           0 :             CPLDebug("RST", "Not supported by RST driver: PROJECTION[\"%s\"]",
    3034             :                      pszProjName);
    3035             : 
    3036           0 :             *pszRefSystem = CPLStrdup(rstPLANE);
    3037           0 :             *pszRefUnit = CPLStrdup(rstMETER);
    3038           0 :             return CE_Failure;
    3039             :         }
    3040             :     }
    3041             :     else
    3042             :     {
    3043           0 :         pszProjectionOut = "none";
    3044             :     }
    3045             : 
    3046             :     // ---------------------------------------------------------
    3047             :     //  Prepare to write ref file
    3048             :     // ---------------------------------------------------------
    3049             : 
    3050           0 :     char *pszGeorefName = CPLStrdup("Unknown");
    3051           0 :     char *pszDatum = CPLStrdup(oSRS.GetAttrValue("DATUM"));
    3052           0 :     char *pszEllipsoid = CPLStrdup(oSRS.GetAttrValue("SPHEROID"));
    3053           0 :     double dfSemiMajor = oSRS.GetSemiMajor();
    3054           0 :     double dfSemiMinor = oSRS.GetSemiMinor();
    3055             :     double adfToWGS84[3];
    3056           0 :     oSRS.GetTOWGS84(adfToWGS84, 3);
    3057             : 
    3058           0 :     double dfCenterLat = 0.0;
    3059           0 :     double dfCenterLong = 0.0;
    3060           0 :     double dfFalseNorthing = 0.0;
    3061           0 :     double dfFalseEasting = 0.0;
    3062           0 :     double dfScale = 1.0;
    3063           0 :     int nParameters = 0;
    3064           0 :     double dfStdP1 = 0.0;
    3065           0 :     double dfStdP2 = 0.0;
    3066           0 :     char *pszAngularUnit = CPLStrdup(oSRS.GetAttrValue("GEOGCS|UNIT"));
    3067           0 :     char *pszLinearUnit = nullptr;
    3068             : 
    3069           0 :     if (oSRS.IsProjected())
    3070             :     {
    3071           0 :         CPLFree(pszGeorefName);
    3072           0 :         pszGeorefName = CPLStrdup(oSRS.GetAttrValue("PROJCS"));
    3073           0 :         dfCenterLat = oSRS.GetProjParm(SRS_PP_LATITUDE_OF_ORIGIN, 0.0, nullptr);
    3074           0 :         dfCenterLong = oSRS.GetProjParm(SRS_PP_CENTRAL_MERIDIAN, 0.0, nullptr);
    3075           0 :         dfFalseNorthing = oSRS.GetProjParm(SRS_PP_FALSE_NORTHING, 0.0, nullptr);
    3076           0 :         dfFalseEasting = oSRS.GetProjParm(SRS_PP_FALSE_EASTING, 0.0, nullptr);
    3077           0 :         dfScale = oSRS.GetProjParm(SRS_PP_SCALE_FACTOR, 0.0, nullptr);
    3078           0 :         dfStdP1 = oSRS.GetProjParm(SRS_PP_STANDARD_PARALLEL_1, -0.1, nullptr);
    3079           0 :         if (EQUAL(pszProjectionOut, "Cylindrical Equal Area"))
    3080             :         {
    3081           0 :             dfStdP2 = -dfStdP1;
    3082           0 :             dfScale = 1.0;
    3083             :         }
    3084             :         else
    3085             :         {
    3086             :             dfStdP2 =
    3087           0 :                 oSRS.GetProjParm(SRS_PP_STANDARD_PARALLEL_2, -0.1, nullptr);
    3088             :         }
    3089           0 :         if (dfStdP1 != -0.1)
    3090             :         {
    3091           0 :             nParameters = 1;
    3092           0 :             if (dfStdP2 != -0.1)
    3093           0 :                 nParameters = 2;
    3094             :         }
    3095           0 :         pszLinearUnit = GetUnitDefault(oSRS.GetAttrValue("PROJCS|UNIT"),
    3096             :                                        CPLSPrintf("%f", oSRS.GetLinearUnits()));
    3097             :     }
    3098             :     else
    3099             :     {
    3100           0 :         pszLinearUnit = GetUnitDefault(pszAngularUnit);
    3101             :     }
    3102             : 
    3103             :     // ---------------------------------------------------------
    3104             :     //  Create a companion georeference file for this dataset
    3105             :     // ---------------------------------------------------------
    3106             : 
    3107           0 :     char **papszRef = nullptr;
    3108           0 :     papszRef = CSLAddNameValue(papszRef, refREF_SYSTEM, pszGeorefName);
    3109           0 :     papszRef = CSLAddNameValue(papszRef, refPROJECTION, pszProjectionOut);
    3110           0 :     papszRef = CSLAddNameValue(papszRef, refDATUM, pszDatum);
    3111           0 :     papszRef = CSLAddNameValue(papszRef, refDELTA_WGS84,
    3112             :                                CPLSPrintf("%.3g %.3g %.3g", adfToWGS84[0],
    3113             :                                           adfToWGS84[1], adfToWGS84[2]));
    3114           0 :     papszRef = CSLAddNameValue(papszRef, refELLIPSOID, pszEllipsoid);
    3115           0 :     papszRef = CSLAddNameValue(papszRef, refMAJOR_SAX,
    3116             :                                CPLSPrintf("%.3f", dfSemiMajor));
    3117           0 :     papszRef = CSLAddNameValue(papszRef, refMINOR_SAX,
    3118             :                                CPLSPrintf("%.3f", dfSemiMinor));
    3119           0 :     papszRef = CSLAddNameValue(papszRef, refORIGIN_LONG,
    3120             :                                CPLSPrintf("%.9g", dfCenterLong));
    3121           0 :     papszRef = CSLAddNameValue(papszRef, refORIGIN_LAT,
    3122             :                                CPLSPrintf("%.9g", dfCenterLat));
    3123           0 :     papszRef = CSLAddNameValue(papszRef, refORIGIN_X,
    3124             :                                CPLSPrintf("%.9g", dfFalseEasting));
    3125           0 :     papszRef = CSLAddNameValue(papszRef, refORIGIN_Y,
    3126             :                                CPLSPrintf("%.9g", dfFalseNorthing));
    3127             :     papszRef =
    3128           0 :         CSLAddNameValue(papszRef, refSCALE_FAC, CPLSPrintf("%.9g", dfScale));
    3129           0 :     papszRef = CSLAddNameValue(papszRef, refUNITS, pszLinearUnit);
    3130           0 :     papszRef = CSLAddNameValue(papszRef, refPARAMETERS,
    3131             :                                CPLSPrintf("%1d", nParameters));
    3132           0 :     if (nParameters > 0)
    3133             :         papszRef =
    3134           0 :             CSLAddNameValue(papszRef, refSTANDL_1, CPLSPrintf("%.9g", dfStdP1));
    3135           0 :     if (nParameters > 1)
    3136             :         papszRef =
    3137           0 :             CSLAddNameValue(papszRef, refSTANDL_2, CPLSPrintf("%.9g", dfStdP2));
    3138           0 :     myCSLSetNameValueSeparator(papszRef, ": ");
    3139           0 :     SaveAsCRLF(papszRef, CPLResetExtensionSafe(pszFilename, extREF).c_str());
    3140           0 :     CSLDestroy(papszRef);
    3141             : 
    3142           0 :     *pszRefSystem = CPLStrdup(CPLGetBasenameSafe(pszFilename).c_str());
    3143           0 :     *pszRefUnit = CPLStrdup(pszLinearUnit);
    3144             : 
    3145           0 :     CPLFree(pszGeorefName);
    3146           0 :     CPLFree(pszDatum);
    3147           0 :     CPLFree(pszEllipsoid);
    3148           0 :     CPLFree(pszLinearUnit);
    3149           0 :     CPLFree(pszAngularUnit);
    3150             : 
    3151           0 :     return CE_None;
    3152             : }
    3153             : 
    3154             : /************************************************************************/
    3155             : /*                             FileExists()                             */
    3156             : /************************************************************************/
    3157             : 
    3158          60 : bool FileExists(const char *pszPath)
    3159             : {
    3160             :     VSIStatBufL sStat;
    3161             : 
    3162          60 :     return VSIStatL(pszPath, &sStat) == 0;
    3163             : }
    3164             : 
    3165             : /************************************************************************/
    3166             : /*                            GetStateCode()                            */
    3167             : /************************************************************************/
    3168             : 
    3169           0 : int GetStateCode(const char *pszState)
    3170             : {
    3171           0 :     for (unsigned int i = 0; i < US_STATE_COUNT; i++)
    3172             :     {
    3173           0 :         if (EQUAL(pszState, aoUSStateTable[i].pszName))
    3174             :         {
    3175           0 :             return aoUSStateTable[i].nCode;
    3176             :         }
    3177             :     }
    3178           0 :     return -1;
    3179             : }
    3180             : 
    3181             : /************************************************************************/
    3182             : /*                            GetStateName()                            */
    3183             : /************************************************************************/
    3184             : 
    3185           0 : const char *GetStateName(int nCode)
    3186             : {
    3187           0 :     for (unsigned int i = 0; i < US_STATE_COUNT; i++)
    3188             :     {
    3189           0 :         if (nCode == aoUSStateTable[i].nCode)
    3190             :         {
    3191           0 :             return aoUSStateTable[i].pszName;
    3192             :         }
    3193             :     }
    3194           0 :     return nullptr;
    3195             : }
    3196             : 
    3197             : /************************************************************************/
    3198             : /*                            GetSpcs()                                 */
    3199             : /************************************************************************/
    3200             : 
    3201           0 : char *GetSpcs(double dfLon, double dfLat)
    3202             : {
    3203           0 :     for (int i = 0; i < ORIGIN_COUNT; i++)
    3204             :     {
    3205           0 :         if ((dfLon == SPCS83Origin[i].longitude) &&
    3206           0 :             (dfLat == SPCS83Origin[i].latitude))
    3207             :         {
    3208           0 :             return (char *)SPCS83Origin[i].spcs;
    3209             :         }
    3210             :     }
    3211           0 :     return nullptr;
    3212             : }
    3213             : 
    3214             : /************************************************************************/
    3215             : /*                            NAD83to27()                               */
    3216             : /************************************************************************/
    3217           0 : void NAD83to27(char *pszOutRef, char *pszInRef)
    3218             : {
    3219           0 :     char *pOutput = pszOutRef;
    3220           0 :     char *pInput = pszInRef;
    3221           0 :     strncpy(pOutput, pInput, 3);
    3222             : 
    3223           0 :     pOutput = pOutput + 3;
    3224           0 :     pInput = pInput + 3;
    3225             : 
    3226           0 :     memcpy(pOutput, "27", 2);
    3227           0 :     pOutput = pOutput + 2;
    3228           0 :     pInput = pInput + 2;
    3229           0 :     strcpy(pOutput, pInput);
    3230           0 : }
    3231             : 
    3232             : /************************************************************************/
    3233             : /*                            GetUnitIndex()                            */
    3234             : /************************************************************************/
    3235             : 
    3236           0 : int GetUnitIndex(const char *pszUnitName)
    3237             : {
    3238           0 :     for (int i = 0; i < (int)LINEAR_UNITS_COUNT; i++)
    3239             :     {
    3240           0 :         if (EQUAL(pszUnitName, aoLinearUnitsConv[i].pszName))
    3241             :         {
    3242           0 :             return i;
    3243             :         }
    3244             :     }
    3245           0 :     return -1;
    3246             : }
    3247             : 
    3248             : /************************************************************************/
    3249             : /*                            GetToMeterIndex()                         */
    3250             : /************************************************************************/
    3251             : 
    3252           0 : int GetToMeterIndex(const char *pszToMeter)
    3253             : {
    3254           0 :     const double dfToMeter = CPLAtof_nz(pszToMeter);
    3255             : 
    3256           0 :     if (dfToMeter != 0.0)
    3257             :     {
    3258           0 :         for (int i = 0; i < (int)LINEAR_UNITS_COUNT; i++)
    3259             :         {
    3260           0 :             if (std::abs(aoLinearUnitsConv[i].dfConv - dfToMeter) < 0.00001)
    3261             :             {
    3262           0 :                 return i;
    3263             :             }
    3264             :         }
    3265             :     }
    3266             : 
    3267           0 :     return -1;
    3268             : }
    3269             : 
    3270             : /************************************************************************/
    3271             : /*                            GetUnitDefault()                          */
    3272             : /************************************************************************/
    3273             : 
    3274           0 : char *GetUnitDefault(const char *pszUnitName, const char *pszToMeter)
    3275             : {
    3276           0 :     int nIndex = GetUnitIndex(pszUnitName);
    3277             : 
    3278           0 :     if (nIndex == -1 && pszToMeter != nullptr)
    3279             :     {
    3280           0 :         nIndex = GetToMeterIndex(pszToMeter);
    3281             :     }
    3282             : 
    3283           0 :     if (nIndex == -1)
    3284             :     {
    3285           0 :         return CPLStrdup("Unknown");
    3286             :     }
    3287             : 
    3288           0 :     return CPLStrdup(
    3289           0 :         aoLinearUnitsConv[aoLinearUnitsConv[nIndex].nDefaultI].pszName);
    3290             : }
    3291             : 
    3292             : /************************************************************************/
    3293             : /*                               CSLSaveCRLF()                          */
    3294             : /************************************************************************/
    3295             : 
    3296             : /***
    3297             :  * Write a stringlist to a CR + LF terminated text file.
    3298             :  *
    3299             :  * Returns the number of lines written, or 0 if the file could not
    3300             :  * be written.
    3301             :  */
    3302             : 
    3303          46 : int SaveAsCRLF(char **papszStrList, const char *pszFname)
    3304             : {
    3305          46 :     VSILFILE *fp = VSIFOpenL(pszFname, "wt");
    3306          46 :     int nLines = 0;
    3307             : 
    3308          46 :     if (papszStrList)
    3309             :     {
    3310          46 :         if (fp != nullptr)
    3311             :         {
    3312         800 :             while (*papszStrList != nullptr)
    3313             :             {
    3314         766 :                 if (VSIFPrintfL(fp, "%s\r\n", *papszStrList) < 1)
    3315             :                 {
    3316          10 :                     CPLError(CE_Failure, CPLE_FileIO,
    3317             :                              "CSLSaveCRLF(\"%s\") failed: unable to write to "
    3318             :                              "output file.",
    3319             :                              pszFname);
    3320          10 :                     break;
    3321             :                 }
    3322             : 
    3323         756 :                 nLines++;
    3324         756 :                 papszStrList++;
    3325             :             }
    3326             : 
    3327          44 :             VSIFCloseL(fp);
    3328             :         }
    3329             :         else
    3330             :         {
    3331           2 :             CPLError(CE_Failure, CPLE_OpenFailed,
    3332             :                      "CSLSaveCRLF(\"%s\") failed: unable to open output file.",
    3333             :                      pszFname);
    3334             :         }
    3335             :     }
    3336             : 
    3337          46 :     return nLines;
    3338             : }
    3339             : 
    3340             : /************************************************************************/
    3341             : /*                        GDALRegister_IDRISI()                         */
    3342             : /************************************************************************/
    3343             : 
    3344        1889 : void GDALRegister_IDRISI()
    3345             : {
    3346        1889 :     if (GDALGetDriverByName("RST") != nullptr)
    3347         282 :         return;
    3348             : 
    3349        1607 :     GDALDriver *poDriver = new GDALDriver();
    3350             : 
    3351        1607 :     poDriver->SetDescription("RST");
    3352        1607 :     poDriver->SetMetadataItem(GDAL_DCAP_RASTER, "YES");
    3353        1607 :     poDriver->SetMetadataItem(GDAL_DMD_LONGNAME, rstVERSION);
    3354        1607 :     poDriver->SetMetadataItem(GDAL_DMD_HELPTOPIC, "drivers/raster/Idrisi.html");
    3355        1607 :     poDriver->SetMetadataItem(GDAL_DMD_EXTENSION, extRST);
    3356        1607 :     poDriver->SetMetadataItem(GDAL_DMD_CREATIONDATATYPES, "Byte Int16 Float32");
    3357             : 
    3358        1607 :     poDriver->SetMetadataItem(GDAL_DCAP_VIRTUALIO, "YES");
    3359             : 
    3360        1607 :     poDriver->pfnOpen = IdrisiDataset::Open;
    3361        1607 :     poDriver->pfnCreate = IdrisiDataset::Create;
    3362        1607 :     poDriver->pfnCreateCopy = IdrisiDataset::CreateCopy;
    3363             : 
    3364        1607 :     GetGDALDriverManager()->RegisterDriver(poDriver);
    3365             : }

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