LCOV - code coverage report
Current view: top level - frmts/nitf - rpfframewriter.h (source / functions) Hit Total Coverage
Test: gdal_filtered.info Lines: 1 1 100.0 %
Date: 2026-03-05 10:33:42 Functions: 1 1 100.0 %

          Line data    Source code
       1             : /******************************************************************************
       2             :  *
       3             :  * Project:  NITF Read/Write Library
       4             :  * Purpose:  Creates RPFHDR, RPFIMG, RPFDES TREs and RPF image data
       5             :  * Author:   Even Rouault, even dot rouault at spatialys dot com
       6             :  *
       7             :  **********************************************************************
       8             :  * Copyright (c) 2026, T-Kartor
       9             :  *
      10             :  * SPDX-License-Identifier: MIT
      11             :  ****************************************************************************/
      12             : 
      13             : #ifndef RPFFRAME_WRITER_INCLUDED
      14             : #define RPFFRAME_WRITER_INCLUDED
      15             : 
      16             : #include "cpl_string.h"
      17             : #include "cpl_vsi_virtual.h"
      18             : 
      19             : #include "gdal_colortable.h"
      20             : 
      21             : #include <string>
      22             : #include <variant>
      23             : #include <vector>
      24             : 
      25             : namespace GDALOffsetPatcher
      26             : {
      27             : class OffsetPatcher;
      28             : }
      29             : 
      30             : class GDALDataset;
      31             : 
      32             : constexpr int CADRG_MAX_COLOR_ENTRY_COUNT = 216;
      33             : constexpr int CADRG_FRAME_PIXEL_COUNT = 1536;
      34             : 
      35             : constexpr int Kilo = 1000;
      36             : constexpr int Million = Kilo * Kilo;
      37             : 
      38             : constexpr int MIN_ZONE = 1;
      39             : constexpr int MAX_ZONE_NORTHERN_HEMISPHERE = 9;
      40             : constexpr int MIN_ZONE_SOUTHERN_HEMISPHERE = 1 + MAX_ZONE_NORTHERN_HEMISPHERE;
      41             : constexpr int MAX_ZONE = 18;
      42             : 
      43             : constexpr const char *pszNorthPolarProjection =
      44             :     "PROJCS[\"ARC_System_Zone_09\",GEOGCS[\"GCS_Sphere\","
      45             :     "DATUM[\"D_Sphere\",SPHEROID[\"Sphere\",6378137.0,0.0]],"
      46             :     "PRIMEM[\"Greenwich\",0],UNIT[\"degree\",0.0174532925199433]],"
      47             :     "PROJECTION[\"Azimuthal_Equidistant\"],"
      48             :     "PARAMETER[\"latitude_of_center\",90],"
      49             :     "PARAMETER[\"longitude_of_center\",0],"
      50             :     "PARAMETER[\"false_easting\",0],"
      51             :     "PARAMETER[\"false_northing\",0],"
      52             :     "UNIT[\"metre\",1]]";
      53             : 
      54             : constexpr const char *pszSouthPolarProjection =
      55             :     "PROJCS[\"ARC_System_Zone_18\",GEOGCS[\"GCS_Sphere\","
      56             :     "DATUM[\"D_Sphere\",SPHEROID[\"Sphere\",6378137.0,0.0]],"
      57             :     "PRIMEM[\"Greenwich\",0],UNIT[\"degree\",0.0174532925199433]],"
      58             :     "PROJECTION[\"Azimuthal_Equidistant\"],"
      59             :     "PARAMETER[\"latitude_of_center\",-90],"
      60             :     "PARAMETER[\"longitude_of_center\",0],"
      61             :     "PARAMETER[\"false_easting\",0],"
      62             :     "PARAMETER[\"false_northing\",0],"
      63             :     "UNIT[\"metre\",1]]";
      64             : 
      65             : /** Opaque class containing CADRG related information */
      66          33 : class CADRGInformation
      67             : {
      68             :   public:
      69             :     class Private;
      70             :     explicit CADRGInformation(std::unique_ptr<Private>);
      71             :     ~CADRGInformation();
      72             : 
      73             :     bool HasTransparentPixels() const;
      74             : 
      75             :     std::unique_ptr<Private> m_private{};
      76             : };
      77             : 
      78             : void Create_CADRG_RPFHDR(GDALOffsetPatcher::OffsetPatcher *offsetPatcher,
      79             :                          const std::string &osFilename,
      80             :                          CPLStringList &aosOptions);
      81             : 
      82             : struct CADRGCreateCopyContext
      83             : {
      84             :     int nReciprocalScale = 0;
      85             :     GDALColorTable oCT2{};
      86             :     std::vector<int> anMapCT1ToCT2{};
      87             :     GDALColorTable oCT3{};
      88             :     std::vector<int> anMapCT1ToCT3{};
      89             : };
      90             : 
      91             : std::unique_ptr<CADRGInformation>
      92             : RPFFrameCreateCADRG_TREs(GDALOffsetPatcher::OffsetPatcher *offsetPatcher,
      93             :                          const std::string &osFilename, GDALDataset *poSrcDS,
      94             :                          CPLStringList &aosOptions,
      95             :                          const CADRGCreateCopyContext &copyContext);
      96             : 
      97             : bool RPFFrameWriteCADRG_RPFIMG(GDALOffsetPatcher::OffsetPatcher *offsetPatcher,
      98             :                                VSILFILE *fp, int &nUDIDL);
      99             : 
     100             : bool RPFFrameWriteCADRG_ImageContent(
     101             :     GDALOffsetPatcher::OffsetPatcher *offsetPatcher, VSILFILE *fp,
     102             :     GDALDataset *poSrcDS, CADRGInformation *info);
     103             : 
     104             : const char *RPFFrameWriteGetDESHeader();
     105             : 
     106             : bool RPFFrameWriteCADRG_RPFDES(GDALOffsetPatcher::OffsetPatcher *offsetPatcher,
     107             :                                VSILFILE *fp, vsi_l_offset nOffsetLDSH,
     108             :                                const CPLStringList &aosOptions,
     109             :                                int nReciprocalScale);
     110             : 
     111             : int RPFGetCADRGClosestReciprocalScale(GDALDataset *poSrcDS,
     112             :                                       double dfDPIOverride, bool &bGotDPI);
     113             : 
     114             : std::variant<bool, std::unique_ptr<GDALDataset>>
     115             : CADRGCreateCopy(const char *pszFilename, GDALDataset *poSrcDS, int bStrict,
     116             :                 CSLConstList papszOptions, GDALProgressFunc pfnProgress,
     117             :                 void *pProgressData, int nRecLevel,
     118             :                 CADRGCreateCopyContext *copyContext);
     119             : 
     120             : struct RPFFrameDef
     121             : {
     122             :     int nZone;
     123             :     int nReciprocalScale;
     124             :     int nFrameMinX;
     125             :     int nFrameMinY;
     126             :     int nFrameMaxX;
     127             :     int nFrameMaxY;
     128             :     double dfResX;
     129             :     double dfResY;
     130             : };
     131             : 
     132             : void RPFGetCADRGResolutionAndInterval(int nZone, int nReciprocalScale,
     133             :                                       double &latResolution,
     134             :                                       double &lonResolution,
     135             :                                       double &latInterval, double &lonInterval);
     136             : std::vector<RPFFrameDef> RPFGetCADRGFramesForEnvelope(int nZoneIn,
     137             :                                                       int nReciprocalScale,
     138             :                                                       GDALDataset *poSrcDS);
     139             : 
     140             : void RPFGetCADRGFrameExtent(int nZone, int nReciprocalScale, int nFrameX,
     141             :                             int nFrameY, double &dfXMin, double &dfYMin,
     142             :                             double &dfXMax, double &dfYMax);
     143             : 
     144             : bool RPFCADRGIsKnownDataSeriesCode(const char *pszCode);
     145             : 
     146             : char RPFCADRGZoneNumToChar(int nZone);
     147             : 
     148             : int RPFCADRGZoneCharToNum(char chZone);
     149             : 
     150             : int RPFCADRGGetScaleFromDataSeriesCode(const char *pszCode);
     151             : 
     152             : std::string RPFGetCADRGFrameNumberAsString(int nZone, int nReciprocalScale,
     153             :                                            int nFrameX, int nFrameY);
     154             : 
     155             : #endif  // RPFFRAME_WRITER_INCLUDED

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