GDAL

vrtdataset.h
1 /******************************************************************************
2 * $Id$
3 *
4 * Project: Virtual GDAL Datasets
5 * Purpose: Declaration of virtual gdal dataset classes.
6 * Author: Frank Warmerdam, warmerdam@pobox.com
7 *
8 ******************************************************************************
9 * Copyright (c) 2001, Frank Warmerdam <warmerdam@pobox.com>
10 * Copyright (c) 2007-2013, Even Rouault <even dot rouault at spatialys.com>
11 *
12 * Permission is hereby granted, free of charge, to any person obtaining a
13 * copy of this software and associated documentation files (the "Software"),
14 * to deal in the Software without restriction, including without limitation
15 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
16 * and/or sell copies of the Software, and to permit persons to whom the
17 * Software is furnished to do so, subject to the following conditions:
18 *
19 * The above copyright notice and this permission notice shall be included
20 * in all copies or substantial portions of the Software.
21 *
22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
23 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
25 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
26 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
27 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
28 * DEALINGS IN THE SOFTWARE.
29 ****************************************************************************/
30
31 #ifndef VIRTUALDATASET_H_INCLUDED
32 #define VIRTUALDATASET_H_INCLUDED
33
34 #ifndef DOXYGEN_SKIP
35
36 #include "cpl_hash_set.h"
37 #include "cpl_minixml.h"
38 #include "gdal_pam.h"
39 #include "gdal_priv.h"
40 #include "gdal_rat.h"
41 #include "gdal_vrt.h"
42 #include "gdal_rat.h"
43
44 #include <functional>
45 #include <map>
46 #include <memory>
47 #include <vector>
48
49 int VRTApplyMetadata( CPLXMLNode *, GDALMajorObject * );
50 CPLXMLNode *VRTSerializeMetadata( GDALMajorObject * );
51 CPLErr GDALRegisterDefaultPixelFunc();
52 CPLString VRTSerializeNoData(double dfVal, GDALDataType eDataType, int nPrecision);
53 #if 0
54 int VRTWarpedOverviewTransform( void *pTransformArg, int bDstToSrc,
55 int nPointCount,
56 double *padfX, double *padfY, double *padfZ,
57 int *panSuccess );
58 void* VRTDeserializeWarpedOverviewTransformer( CPLXMLNode *psTree );
59 #endif
60
61 /************************************************************************/
62 /* VRTOverviewInfo() */
63 /************************************************************************/
64 class VRTOverviewInfo
65 {
66 CPL_DISALLOW_COPY_ASSIGN(VRTOverviewInfo)
67
68 public:
69 CPLString osFilename{};
70 int nBand = 0;
71 GDALRasterBand *poBand = nullptr;
72 int bTriedToOpen = FALSE;
73
74 VRTOverviewInfo() = default;
75 VRTOverviewInfo(VRTOverviewInfo&& oOther) noexcept:
76 osFilename(std::move(oOther.osFilename)),
77 nBand(oOther.nBand),
78 poBand(oOther.poBand),
79 bTriedToOpen(oOther.bTriedToOpen)
80 {
81 oOther.poBand = nullptr;
82 }
83
84 ~VRTOverviewInfo() {
85 CloseDataset();
86 }
87
88 bool CloseDataset()
89 {
90 if( poBand == nullptr )
91 return false;
92
93 GDALDataset* poDS = poBand->GetDataset();
94 // Nullify now, to prevent recursion in some cases !
95 poBand = nullptr;
96 if( poDS->GetShared() )
97 GDALClose( /* (GDALDatasetH) */ poDS );
98 else
99 poDS->Dereference();
100
101 return true;
102 }
103 };
104
105 /************************************************************************/
106 /* VRTSource */
107 /************************************************************************/
108
109 class CPL_DLL VRTSource
110 {
111 public:
112 virtual ~VRTSource();
113
114 virtual CPLErr RasterIO( GDALDataType eBandDataType,
115 int nXOff, int nYOff, int nXSize, int nYSize,
116 void *pData, int nBufXSize, int nBufYSize,
117 GDALDataType eBufType,
118 GSpacing nPixelSpace, GSpacing nLineSpace,
119 GDALRasterIOExtraArg* psExtraArg ) = 0;
120
121 virtual double GetMinimum( int nXSize, int nYSize, int *pbSuccess ) = 0;
122 virtual double GetMaximum( int nXSize, int nYSize, int *pbSuccess ) = 0;
123 virtual CPLErr GetHistogram( int nXSize, int nYSize,
124 double dfMin, double dfMax,
125 int nBuckets, GUIntBig * panHistogram,
126 int bIncludeOutOfRange, int bApproxOK,
127 GDALProgressFunc pfnProgress,
128 void *pProgressData ) = 0;
129
130 virtual CPLErr XMLInit( CPLXMLNode *psTree, const char *,
131 std::map<CPLString, GDALDataset*>& ) = 0;
132 virtual CPLXMLNode *SerializeToXML( const char *pszVRTPath ) = 0;
133
134 virtual void GetFileList(char*** ppapszFileList, int *pnSize,
135 int *pnMaxSize, CPLHashSet* hSetFiles);
136
137 virtual int IsSimpleSource() { return FALSE; }
138 virtual CPLErr FlushCache(bool /*bAtClosing*/) { return CE_None; }
139 };
140
141 typedef VRTSource *(*VRTSourceParser)(CPLXMLNode *, const char *,
142 std::map<CPLString, GDALDataset*>& oMapSharedSources);
143
144 VRTSource *VRTParseCoreSources( CPLXMLNode *psTree, const char *,
145 std::map<CPLString, GDALDataset*>& oMapSharedSources);
146 VRTSource *VRTParseFilterSources( CPLXMLNode *psTree, const char *,
147 std::map<CPLString, GDALDataset*>& oMapSharedSources );
148
149 /************************************************************************/
150 /* VRTDataset */
151 /************************************************************************/
152
153 class VRTRasterBand;
154
155 template<class T> struct VRTFlushCacheStruct
156 {
157 static void FlushCache(T& obj, bool bAtClosing);
158 };
159
160 class VRTWarpedDataset;
161 class VRTPansharpenedDataset;
162 class VRTGroup;
163
164 class CPL_DLL VRTDataset CPL_NON_FINAL: public GDALDataset
165 {
166 friend class VRTRasterBand;
167 friend struct VRTFlushCacheStruct<VRTDataset>;
168 friend struct VRTFlushCacheStruct<VRTWarpedDataset>;
169 friend struct VRTFlushCacheStruct<VRTPansharpenedDataset>;
170 friend class VRTSourcedRasterBand;
171 friend VRTDatasetH CPL_STDCALL VRTCreate(int nXSize, int nYSize);
172
173 OGRSpatialReference* m_poSRS = nullptr;
174
175 int m_bGeoTransformSet = false;
176 double m_adfGeoTransform[6];
177
178 int m_nGCPCount = 0;
179 GDAL_GCP *m_pasGCPList = nullptr;
180 OGRSpatialReference *m_poGCP_SRS = nullptr;
181
182 bool m_bNeedsFlush = false;
183 bool m_bWritable = true;
184 bool m_bCanTakeRef = true;
185
186 char *m_pszVRTPath = nullptr;
187
188 VRTRasterBand *m_poMaskBand = nullptr;
189
190 int m_bCompatibleForDatasetIO = -1;
191 int CheckCompatibleForDatasetIO();
192
193 // Virtual (ie not materialized) overviews, created either implicitly
194 // when it is cheap to do it, or explicitly.
195 std::vector<GDALDataset*> m_apoOverviews{};
196 std::vector<GDALDataset*> m_apoOverviewsBak{};
197 CPLString m_osOverviewResampling{};
198 std::vector<int> m_anOverviewFactors{};
199
200 char **m_papszXMLVRTMetadata = nullptr;
201
202 std::map<CPLString, GDALDataset*> m_oMapSharedSources{};
203 std::shared_ptr<VRTGroup> m_poRootGroup{};
204
205 VRTRasterBand* InitBand(const char* pszSubclass, int nBand,
206 bool bAllowPansharpened);
207 static GDALDataset *OpenVRTProtocol( const char* pszSpec );
208 bool AddVirtualOverview(int nOvFactor,
209 const char* pszResampling);
210
211 CPL_DISALLOW_COPY_ASSIGN(VRTDataset)
212
213 protected:
214 virtual int CloseDependentDatasets() override;
215
216 public:
217 VRTDataset(int nXSize, int nYSize);
218 virtual ~VRTDataset();
219
220 void SetNeedsFlush() { m_bNeedsFlush = true; }
221 virtual void FlushCache(bool bAtClosing) override;
222
223 void SetWritable(int bWritableIn) { m_bWritable = CPL_TO_BOOL(bWritableIn); }
224
225 virtual CPLErr CreateMaskBand( int nFlags ) override;
226 void SetMaskBand(VRTRasterBand* poMaskBand);
227
228 const OGRSpatialReference* GetSpatialRef() const override { return m_poSRS; }
229 CPLErr SetSpatialRef(const OGRSpatialReference* poSRS) override;
230
231 virtual CPLErr GetGeoTransform( double * ) override;
232 virtual CPLErr SetGeoTransform( double * ) override;
233
234 virtual CPLErr SetMetadata( char **papszMetadata,
235 const char *pszDomain = "" ) override;
236 virtual CPLErr SetMetadataItem( const char *pszName, const char *pszValue,
237 const char *pszDomain = "" ) override;
238
239 virtual char** GetMetadata( const char *pszDomain = "" ) override;
240
241 virtual int GetGCPCount() override;
242 const OGRSpatialReference* GetGCPSpatialRef() const override { return m_poGCP_SRS; }
243 virtual const GDAL_GCP *GetGCPs() override;
244 using GDALDataset::SetGCPs;
245 CPLErr SetGCPs( int nGCPCount, const GDAL_GCP *pasGCPList,
246 const OGRSpatialReference* poSRS ) override;
247
248 virtual CPLErr AddBand( GDALDataType eType,
249 char **papszOptions=nullptr ) override;
250
251 virtual char **GetFileList() override;
252
253 virtual CPLErr IRasterIO( GDALRWFlag eRWFlag,
254 int nXOff, int nYOff, int nXSize, int nYSize,
255 void * pData, int nBufXSize, int nBufYSize,
256 GDALDataType eBufType,
257 int nBandCount, int *panBandMap,
258 GSpacing nPixelSpace, GSpacing nLineSpace,
259 GSpacing nBandSpace,
260 GDALRasterIOExtraArg* psExtraArg) override;
261
262 virtual CPLErr AdviseRead( int nXOff, int nYOff, int nXSize, int nYSize,
263 int nBufXSize, int nBufYSize,
264 GDALDataType eDT,
265 int nBandCount, int *panBandList,
266 char **papszOptions ) override;
267
268 virtual CPLXMLNode *SerializeToXML( const char *pszVRTPath);
269 virtual CPLErr XMLInit( CPLXMLNode *, const char * );
270
271 virtual CPLErr IBuildOverviews( const char *,
272 int, const int *,
273 int, const int *,
274 GDALProgressFunc, void *,
275 CSLConstList papszOptions ) override;
276
277 std::shared_ptr<GDALGroup> GetRootGroup() const override;
278
279 /* Used by PDF driver for example */
280 GDALDataset* GetSingleSimpleSource();
281 void BuildVirtualOverviews();
282
283 void UnsetPreservedRelativeFilenames();
284
285 static int Identify( GDALOpenInfo * );
286 static GDALDataset *Open( GDALOpenInfo * );
287 static GDALDataset *OpenXML( const char *, const char * = nullptr,
288 GDALAccess eAccess = GA_ReadOnly );
289 static GDALDataset *Create( const char * pszName,
290 int nXSize, int nYSize, int nBands,
291 GDALDataType eType, char ** papszOptions );
292 static GDALDataset *CreateMultiDimensional( const char * pszFilename,
293 CSLConstList papszRootGroupOptions,
294 CSLConstList papszOptions );
295 static CPLErr Delete( const char * pszFilename );
296 };
297
298 /************************************************************************/
299 /* VRTWarpedDataset */
300 /************************************************************************/
301
302 class GDALWarpOperation;
303 class VRTWarpedRasterBand;
304
305 class CPL_DLL VRTWarpedDataset final: public VRTDataset
306 {
307 int m_nBlockXSize;
308 int m_nBlockYSize;
309 GDALWarpOperation *m_poWarper;
310
311 int m_nOverviewCount;
312 VRTWarpedDataset **m_papoOverviews;
313 int m_nSrcOvrLevel;
314
315 void CreateImplicitOverviews();
316
317 friend class VRTWarpedRasterBand;
318
319 CPL_DISALLOW_COPY_ASSIGN(VRTWarpedDataset)
320
321 protected:
322 virtual int CloseDependentDatasets() override;
323
324 public:
325 VRTWarpedDataset( int nXSize, int nYSize );
326 virtual ~VRTWarpedDataset();
327
328 virtual void FlushCache(bool bAtClosing) override;
329
330 CPLErr Initialize( /* GDALWarpOptions */ void * );
331
332 virtual CPLErr IBuildOverviews( const char *,
333 int, const int *,
334 int, const int *,
335 GDALProgressFunc, void *,
336 CSLConstList papszOptions ) override;
337
338 virtual CPLErr SetMetadataItem( const char *pszName, const char *pszValue,
339 const char *pszDomain = "" ) override;
340
341 virtual CPLXMLNode *SerializeToXML( const char *pszVRTPath ) override;
342 virtual CPLErr XMLInit( CPLXMLNode *, const char * ) override;
343
344 virtual CPLErr AddBand( GDALDataType eType,
345 char **papszOptions=nullptr ) override;
346
347 virtual char **GetFileList() override;
348
349 CPLErr ProcessBlock( int iBlockX, int iBlockY );
350
351 void GetBlockSize( int *, int * ) const;
352 };
353
354 /************************************************************************/
355 /* VRTPansharpenedDataset */
356 /************************************************************************/
357
358 class GDALPansharpenOperation;
359
360 typedef enum
361 {
362 GTAdjust_Union,
363 GTAdjust_Intersection,
364 GTAdjust_None,
365 GTAdjust_NoneWithoutWarning
366 } GTAdjustment;
367
368 class VRTPansharpenedDataset final: public VRTDataset
369 {
370 friend class VRTPansharpenedRasterBand;
371
372 int m_nBlockXSize;
373 int m_nBlockYSize;
374 GDALPansharpenOperation* m_poPansharpener;
375 VRTPansharpenedDataset* m_poMainDataset;
376 std::vector<VRTPansharpenedDataset*> m_apoOverviewDatasets{};
377 // Map from absolute to relative.
378 std::map<CPLString,CPLString> m_oMapToRelativeFilenames{};
379
380 int m_bLoadingOtherBands;
381
382 GByte *m_pabyLastBufferBandRasterIO;
383 int m_nLastBandRasterIOXOff;
384 int m_nLastBandRasterIOYOff;
385 int m_nLastBandRasterIOXSize;
386 int m_nLastBandRasterIOYSize;
387 GDALDataType m_eLastBandRasterIODataType;
388
389 GTAdjustment m_eGTAdjustment;
390 int m_bNoDataDisabled;
391
392 std::vector<GDALDataset*> m_apoDatasetsToClose{};
393
394 CPL_DISALLOW_COPY_ASSIGN(VRTPansharpenedDataset)
395
396 protected:
397 virtual int CloseDependentDatasets() override;
398
399 public:
400 VRTPansharpenedDataset( int nXSize, int nYSize );
401 virtual ~VRTPansharpenedDataset();
402
403 virtual void FlushCache(bool bAtClosing) override;
404
405 virtual CPLErr XMLInit( CPLXMLNode *, const char * ) override;
406 virtual CPLXMLNode * SerializeToXML( const char *pszVRTPath ) override;
407
408 CPLErr XMLInit( CPLXMLNode *psTree, const char *pszVRTPath,
409 GDALRasterBandH hPanchroBandIn,
410 int nInputSpectralBandsIn,
411 GDALRasterBandH* pahInputSpectralBandsIn );
412
413 virtual CPLErr AddBand( GDALDataType eType,
414 char **papszOptions=nullptr ) override;
415
416 virtual char **GetFileList() override;
417
418 virtual CPLErr IRasterIO( GDALRWFlag eRWFlag,
419 int nXOff, int nYOff, int nXSize, int nYSize,
420 void * pData, int nBufXSize, int nBufYSize,
421 GDALDataType eBufType,
422 int nBandCount, int *panBandMap,
423 GSpacing nPixelSpace, GSpacing nLineSpace,
424 GSpacing nBandSpace,
425 GDALRasterIOExtraArg* psExtraArg) override;
426
427 void GetBlockSize( int *, int * ) const;
428
429 GDALPansharpenOperation* GetPansharpener() { return m_poPansharpener; }
430 };
431
432 /************************************************************************/
433 /* VRTRasterBand */
434 /* */
435 /* Provides support for all the various kinds of metadata but */
436 /* no raster access. That is handled by derived classes. */
437 /************************************************************************/
438
439 constexpr double VRT_DEFAULT_NODATA_VALUE = -10000.0;
440
441 class CPL_DLL VRTRasterBand CPL_NON_FINAL: public GDALRasterBand
442 {
443 private:
444
445 void ResetNoDataValues();
446
447 protected:
448 friend class VRTDataset;
449
450 int m_bIsMaskBand = FALSE;
451
452 int m_bNoDataValueSet = FALSE;
453 // If set to true, will not report the existence of nodata.
454 int m_bHideNoDataValue = FALSE;
455 double m_dfNoDataValue = VRT_DEFAULT_NODATA_VALUE;
456
457 bool m_bNoDataSetAsInt64 = false;
458 int64_t m_nNoDataValueInt64 = GDAL_PAM_DEFAULT_NODATA_VALUE_INT64;
459
460 bool m_bNoDataSetAsUInt64 = false;
461 uint64_t m_nNoDataValueUInt64 = GDAL_PAM_DEFAULT_NODATA_VALUE_UINT64;
462
463 std::unique_ptr<GDALColorTable> m_poColorTable{};
464
465 GDALColorInterp m_eColorInterp = GCI_Undefined;
466
467 char *m_pszUnitType = nullptr;
468 char **m_papszCategoryNames = nullptr;
469
470 double m_dfOffset = 0.0;
471 double m_dfScale = 1.0;
472
473 CPLXMLNode *m_psSavedHistograms = nullptr;
474
475 void Initialize( int nXSize, int nYSize );
476
477 std::vector<VRTOverviewInfo> m_aoOverviewInfos{};
478
479 VRTRasterBand *m_poMaskBand = nullptr;
480
481 std::unique_ptr<GDALRasterAttributeTable> m_poRAT{};
482
483 CPL_DISALLOW_COPY_ASSIGN(VRTRasterBand)
484
485 bool IsNoDataValueInDataTypeRange() const;
486
487 public:
488
489 VRTRasterBand();
490 virtual ~VRTRasterBand();
491
492 virtual CPLErr XMLInit( CPLXMLNode *, const char *,
493 std::map<CPLString, GDALDataset*>& );
494 virtual CPLXMLNode * SerializeToXML( const char *pszVRTPath );
495
496 CPLErr SetNoDataValue( double ) override;
497 CPLErr SetNoDataValueAsInt64( int64_t nNoData ) override;
498 CPLErr SetNoDataValueAsUInt64( uint64_t nNoData ) override;
499 double GetNoDataValue( int *pbSuccess = nullptr ) override;
500 int64_t GetNoDataValueAsInt64( int *pbSuccess = nullptr ) override;
501 uint64_t GetNoDataValueAsUInt64( int *pbSuccess = nullptr ) override;
502 CPLErr DeleteNoDataValue() override;
503
504 virtual CPLErr SetColorTable( GDALColorTable * ) override;
505 virtual GDALColorTable *GetColorTable() override;
506
507 virtual GDALRasterAttributeTable *GetDefaultRAT() override;
508 virtual CPLErr SetDefaultRAT( const GDALRasterAttributeTable * poRAT ) override;
509
510 virtual CPLErr SetColorInterpretation( GDALColorInterp ) override;
511 virtual GDALColorInterp GetColorInterpretation() override;
512
513 virtual const char *GetUnitType() override;
514 CPLErr SetUnitType( const char * ) override;
515
516 virtual char **GetCategoryNames() override;
517 virtual CPLErr SetCategoryNames( char ** ) override;
518
519 virtual CPLErr SetMetadata( char **papszMD, const char *pszDomain = "" ) override;
520 virtual CPLErr SetMetadataItem( const char *pszName, const char *pszValue,
521 const char *pszDomain = "" ) override;
522
523 virtual double GetOffset( int *pbSuccess = nullptr ) override;
524 CPLErr SetOffset( double ) override;
525 virtual double GetScale( int *pbSuccess = nullptr ) override;
526 CPLErr SetScale( double ) override;
527
528 virtual int GetOverviewCount() override;
529 virtual GDALRasterBand *GetOverview(int) override;
530
531 virtual CPLErr GetHistogram( double dfMin, double dfMax,
532 int nBuckets, GUIntBig * panHistogram,
533 int bIncludeOutOfRange, int bApproxOK,
534 GDALProgressFunc, void *pProgressData ) override;
535
536 virtual CPLErr GetDefaultHistogram( double *pdfMin, double *pdfMax,
537 int *pnBuckets, GUIntBig ** ppanHistogram,
538 int bForce,
539 GDALProgressFunc, void *pProgressData) override;
540
541 virtual CPLErr SetDefaultHistogram( double dfMin, double dfMax,
542 int nBuckets, GUIntBig *panHistogram ) override;
543
544 CPLErr CopyCommonInfoFrom( GDALRasterBand * );
545
546 virtual void GetFileList(char*** ppapszFileList, int *pnSize,
547 int *pnMaxSize, CPLHashSet* hSetFiles);
548
549 virtual void SetDescription( const char * ) override;
550
551 virtual GDALRasterBand *GetMaskBand() override;
552 virtual int GetMaskFlags() override;
553
554 virtual CPLErr CreateMaskBand( int nFlagsIn ) override;
555
556 void SetMaskBand(VRTRasterBand* poMaskBand);
557
558 void SetIsMaskBand();
559
560 virtual bool IsMaskBand() const override;
561
562 CPLErr UnsetNoDataValue();
563
564 virtual int CloseDependentDatasets();
565
566 virtual int IsSourcedRasterBand() { return FALSE; }
567 virtual int IsPansharpenRasterBand() { return FALSE; }
568 };
569
570 /************************************************************************/
571 /* VRTSourcedRasterBand */
572 /************************************************************************/
573
574 class VRTSimpleSource;
575
576 class CPL_DLL VRTSourcedRasterBand CPL_NON_FINAL: public VRTRasterBand
577 {
578 private:
579 CPLString m_osLastLocationInfo{};
580 char **m_papszSourceList = nullptr;
581 int m_nSkipBufferInitialization = -1;
582
583 bool CanUseSourcesMinMaxImplementations();
584
585 bool IsMosaicOfNonOverlappingSimpleSourcesOfFullRasterNoResAndTypeChange(bool bAllowMaxValAdjustment) const;
586
587 CPL_DISALLOW_COPY_ASSIGN(VRTSourcedRasterBand)
588
589 protected:
590 bool SkipBufferInitialization();
591
592 public:
593 int nSources = 0;
594 VRTSource **papoSources = nullptr;
595
596 VRTSourcedRasterBand( GDALDataset *poDS, int nBand );
597 VRTSourcedRasterBand( GDALDataType eType,
598 int nXSize, int nYSize );
599 VRTSourcedRasterBand( GDALDataset *poDS, int nBand,
600 GDALDataType eType,
601 int nXSize, int nYSize );
602 VRTSourcedRasterBand( GDALDataset *poDS, int nBand,
603 GDALDataType eType,
604 int nXSize, int nYSize,
605 int nBlockXSizeIn, int nBlockYSizeIn );
606 virtual ~VRTSourcedRasterBand();
607
608 virtual CPLErr IRasterIO( GDALRWFlag, int, int, int, int,
609 void *, int, int, GDALDataType,
610 GSpacing nPixelSpace, GSpacing nLineSpace,
611 GDALRasterIOExtraArg* psExtraArg) override;
612
613 virtual int IGetDataCoverageStatus( int nXOff, int nYOff,
614 int nXSize, int nYSize,
615 int nMaskFlagStop,
616 double* pdfDataPct) override;
617
618 virtual char **GetMetadataDomainList() override;
619 virtual const char *GetMetadataItem( const char * pszName,
620 const char * pszDomain = "" ) override;
621 virtual char **GetMetadata( const char * pszDomain = "" ) override;
622 virtual CPLErr SetMetadata( char ** papszMetadata,
623 const char * pszDomain = "" ) override;
624 virtual CPLErr SetMetadataItem( const char * pszName,
625 const char * pszValue,
626 const char * pszDomain = "" ) override;
627
628 virtual CPLErr XMLInit( CPLXMLNode *, const char *,
629 std::map<CPLString, GDALDataset*>& ) override;
630 virtual CPLXMLNode * SerializeToXML( const char *pszVRTPath ) override;
631
632 virtual double GetMinimum( int *pbSuccess = nullptr ) override;
633 virtual double GetMaximum(int *pbSuccess = nullptr ) override;
634 virtual CPLErr ComputeRasterMinMax( int bApproxOK, double* adfMinMax ) override;
635 virtual CPLErr ComputeStatistics( int bApproxOK,
636 double *pdfMin, double *pdfMax,
637 double *pdfMean, double *pdfStdDev,
638 GDALProgressFunc pfnProgress,
639 void *pProgressData ) override;
640 virtual CPLErr GetHistogram( double dfMin, double dfMax,
641 int nBuckets, GUIntBig * panHistogram,
642 int bIncludeOutOfRange, int bApproxOK,
643 GDALProgressFunc pfnProgress,
644 void *pProgressData ) override;
645
646 CPLErr AddSource( VRTSource * );
647
648 CPLErr AddSimpleSource( const char* pszFilename,
649 int nBand,
650 double dfSrcXOff=-1, double dfSrcYOff=-1,
651 double dfSrcXSize=-1, double dfSrcYSize=-1,
652 double dfDstXOff=-1, double dfDstYOff=-1,
653 double dfDstXSize=-1, double dfDstYSize=-1,
654 const char *pszResampling = "near",
655 double dfNoDataValue = VRT_NODATA_UNSET);
656
657 CPLErr AddSimpleSource( GDALRasterBand *poSrcBand,
658 double dfSrcXOff=-1, double dfSrcYOff=-1,
659 double dfSrcXSize=-1, double dfSrcYSize=-1,
660 double dfDstXOff=-1, double dfDstYOff=-1,
661 double dfDstXSize=-1, double dfDstYSize=-1,
662 const char *pszResampling = "near",
663 double dfNoDataValue = VRT_NODATA_UNSET);
664
665 CPLErr AddComplexSource( const char* pszFilename,
666 int nBand,
667 double dfSrcXOff=-1, double dfSrcYOff=-1,
668 double dfSrcXSize=-1, double dfSrcYSize=-1,
669 double dfDstXOff=-1, double dfDstYOff=-1,
670 double dfDstXSize=-1, double dfDstYSize=-1,
671 double dfScaleOff=0.0,
672 double dfScaleRatio=1.0,
673 double dfNoDataValue = VRT_NODATA_UNSET,
674 int nColorTableComponent = 0);
675
676 CPLErr AddComplexSource( GDALRasterBand *poSrcBand,
677 double dfSrcXOff=-1, double dfSrcYOff=-1,
678 double dfSrcXSize=-1, double dfSrcYSize=-1,
679 double dfDstXOff=-1, double dfDstYOff=-1,
680 double dfDstXSize=-1, double dfDstYSize=-1,
681 double dfScaleOff=0.0,
682 double dfScaleRatio=1.0,
683 double dfNoDataValue = VRT_NODATA_UNSET,
684 int nColorTableComponent = 0);
685
686 CPLErr AddMaskBandSource( GDALRasterBand *poSrcBand,
687 double dfSrcXOff=-1, double dfSrcYOff=-1,
688 double dfSrcXSize=-1,
689 double dfSrcYSize=-1,
690 double dfDstXOff=-1, double dfDstYOff=-1,
691 double dfDstXSize=-1,
692 double dfDstYSize=-1 );
693
694 CPLErr AddFuncSource( VRTImageReadFunc pfnReadFunc, void *hCBData,
695 double dfNoDataValue = VRT_NODATA_UNSET );
696
697 void ConfigureSource(VRTSimpleSource *poSimpleSource,
698 GDALRasterBand *poSrcBand,
699 int bAddAsMaskBand,
700 double dfSrcXOff, double dfSrcYOff,
701 double dfSrcXSize, double dfSrcYSize,
702 double dfDstXOff, double dfDstYOff,
703 double dfDstXSize, double dfDstYSize );
704
705 void RemoveCoveredSources(CSLConstList papszOptions = nullptr);
706
707 virtual CPLErr IReadBlock( int, int, void * ) override;
708
709 virtual void GetFileList(char*** ppapszFileList, int *pnSize,
710 int *pnMaxSize, CPLHashSet* hSetFiles) override;
711
712 virtual int CloseDependentDatasets() override;
713
714 virtual int IsSourcedRasterBand() override { return TRUE; }
715
716 virtual CPLErr FlushCache(bool bAtClosing) override;
717 };
718
719 /************************************************************************/
720 /* VRTWarpedRasterBand */
721 /************************************************************************/
722
723 class CPL_DLL VRTWarpedRasterBand final: public VRTRasterBand
724 {
725 public:
726 VRTWarpedRasterBand( GDALDataset *poDS, int nBand,
727 GDALDataType eType = GDT_Unknown );
728 virtual ~VRTWarpedRasterBand();
729
730 virtual CPLXMLNode * SerializeToXML( const char *pszVRTPath ) override;
731
732 virtual CPLErr IReadBlock( int, int, void * ) override;
733 virtual CPLErr IWriteBlock( int, int, void * ) override;
734
735 virtual int GetOverviewCount() override;
736 virtual GDALRasterBand *GetOverview(int) override;
737 };
738 /************************************************************************/
739 /* VRTPansharpenedRasterBand */
740 /************************************************************************/
741
742 class VRTPansharpenedRasterBand final: public VRTRasterBand
743 {
744 int m_nIndexAsPansharpenedBand;
745
746 public:
747 VRTPansharpenedRasterBand(
748 GDALDataset *poDS, int nBand,
749 GDALDataType eDataType = GDT_Unknown );
750 virtual ~VRTPansharpenedRasterBand();
751
752 virtual CPLXMLNode * SerializeToXML( const char *pszVRTPath ) override;
753
754 virtual CPLErr IReadBlock( int, int, void * ) override;
755
756 virtual CPLErr IRasterIO( GDALRWFlag eRWFlag,
757 int nXOff, int nYOff, int nXSize, int nYSize,
758 void * pData, int nBufXSize, int nBufYSize,
759 GDALDataType eBufType,
760 GSpacing nPixelSpace, GSpacing nLineSpace,
761 GDALRasterIOExtraArg* psExtraArg) override;
762
763 virtual int GetOverviewCount() override;
764 virtual GDALRasterBand *GetOverview(int) override;
765
766 virtual int IsPansharpenRasterBand() override { return TRUE; }
767
768 void SetIndexAsPansharpenedBand( int nIdx )
769 { m_nIndexAsPansharpenedBand = nIdx; }
770 int GetIndexAsPansharpenedBand() const
771 { return m_nIndexAsPansharpenedBand; }
772 };
773
774 /************************************************************************/
775 /* VRTDerivedRasterBand */
776 /************************************************************************/
777
778 class VRTDerivedRasterBandPrivateData;
779
780 class CPL_DLL VRTDerivedRasterBand CPL_NON_FINAL: public VRTSourcedRasterBand
781 {
782 VRTDerivedRasterBandPrivateData* m_poPrivate;
783 bool InitializePython();
784 CPLErr GetPixelFunctionArguments(
785 const CPLString&,
786 std::vector<std::pair<CPLString, CPLString>> &);
787
788 CPL_DISALLOW_COPY_ASSIGN(VRTDerivedRasterBand)
789
790 public:
791 char *pszFuncName;
792 GDALDataType eSourceTransferType;
793
794 using PixelFunc = std::function<CPLErr(void**, int, void*, int, int, GDALDataType, GDALDataType, int, int, CSLConstList)>;
795
796 VRTDerivedRasterBand( GDALDataset *poDS, int nBand );
797 VRTDerivedRasterBand( GDALDataset *poDS, int nBand,
798 GDALDataType eType, int nXSize, int nYSize );
799 virtual ~VRTDerivedRasterBand();
800
801 virtual CPLErr IRasterIO( GDALRWFlag, int, int, int, int,
802 void *, int, int, GDALDataType,
803 GSpacing nPixelSpace, GSpacing nLineSpace,
804 GDALRasterIOExtraArg* psExtraArg ) override;
805
806 virtual int IGetDataCoverageStatus( int nXOff, int nYOff,
807 int nXSize, int nYSize,
808 int nMaskFlagStop,
809 double* pdfDataPct) override;
810
811 static CPLErr AddPixelFunction( const char *pszFuncNameIn,
812 GDALDerivedPixelFunc pfnPixelFunc );
813 static CPLErr AddPixelFunction( const char *pszFuncNameIn,
814 GDALDerivedPixelFuncWithArgs pfnPixelFunc,
815 const char *pszMetadata);
816
817 static std::pair<PixelFunc, CPLString>* GetPixelFunction( const char *pszFuncNameIn );
818
819 void SetPixelFunctionName( const char *pszFuncNameIn );
820 void SetSourceTransferType( GDALDataType eDataType );
821 void SetPixelFunctionLanguage( const char* pszLanguage );
822
823 virtual CPLErr XMLInit( CPLXMLNode *, const char *,
824 std::map<CPLString, GDALDataset*>& ) override;
825 virtual CPLXMLNode * SerializeToXML( const char *pszVRTPath ) override;
826
827 virtual double GetMinimum( int *pbSuccess = nullptr ) override;
828 virtual double GetMaximum(int *pbSuccess = nullptr ) override;
829 virtual CPLErr ComputeRasterMinMax( int bApproxOK, double* adfMinMax ) override;
830 virtual CPLErr ComputeStatistics( int bApproxOK,
831 double *pdfMin, double *pdfMax,
832 double *pdfMean, double *pdfStdDev,
833 GDALProgressFunc pfnProgress,
834 void *pProgressData ) override;
835 virtual CPLErr GetHistogram( double dfMin, double dfMax,
836 int nBuckets, GUIntBig * panHistogram,
837 int bIncludeOutOfRange, int bApproxOK,
838 GDALProgressFunc pfnProgress,
839 void *pProgressData ) override;
840
841 static void Cleanup();
842 };
843
844 /************************************************************************/
845 /* VRTRawRasterBand */
846 /************************************************************************/
847
848 class RawRasterBand;
849
850 class CPL_DLL VRTRawRasterBand CPL_NON_FINAL: public VRTRasterBand
851 {
852 RawRasterBand *m_poRawRaster;
853
854 char *m_pszSourceFilename;
855 int m_bRelativeToVRT;
856
857 CPL_DISALLOW_COPY_ASSIGN(VRTRawRasterBand)
858
859 public:
860 VRTRawRasterBand( GDALDataset *poDS, int nBand,
861 GDALDataType eType = GDT_Unknown );
862 virtual ~VRTRawRasterBand();
863
864 virtual CPLErr XMLInit( CPLXMLNode *, const char *,
865 std::map<CPLString, GDALDataset*>& ) override;
866 virtual CPLXMLNode * SerializeToXML( const char *pszVRTPath ) override;
867
868 virtual CPLErr IRasterIO( GDALRWFlag, int, int, int, int,
869 void *, int, int, GDALDataType,
870 GSpacing nPixelSpace, GSpacing nLineSpace,
871 GDALRasterIOExtraArg* psExtraArg ) override;
872
873 virtual CPLErr IReadBlock( int, int, void * ) override;
874 virtual CPLErr IWriteBlock( int, int, void * ) override;
875
876 CPLErr SetRawLink( const char *pszFilename,
877 const char *pszVRTPath,
878 int bRelativeToVRT,
879 vsi_l_offset nImageOffset,
880 int nPixelOffset, int nLineOffset,
881 const char *pszByteOrder );
882
883 void ClearRawLink();
884
885 CPLVirtualMem *GetVirtualMemAuto( GDALRWFlag eRWFlag,
886 int *pnPixelSpace,
887 GIntBig *pnLineSpace,
888 char **papszOptions ) override;
889
890 virtual void GetFileList( char*** ppapszFileList, int *pnSize,
891 int *pnMaxSize, CPLHashSet* hSetFiles ) override;
892 };
893
894 /************************************************************************/
895 /* VRTDriver */
896 /************************************************************************/
897
898 class VRTDriver final: public GDALDriver
899 {
900 CPL_DISALLOW_COPY_ASSIGN(VRTDriver)
901
902 std::map<std::string, VRTSourceParser> m_oMapSourceParser{};
903
904 public:
905 VRTDriver();
906 virtual ~VRTDriver();
907
908 char **papszSourceParsers;
909
910 virtual char **GetMetadataDomainList() override;
911 virtual char **GetMetadata( const char * pszDomain = "" ) override;
912 virtual CPLErr SetMetadata( char ** papszMetadata,
913 const char * pszDomain = "" ) override;
914
915 VRTSource *ParseSource( CPLXMLNode *psSrc, const char *pszVRTPath,
916 std::map<CPLString, GDALDataset*>& oMapSharedSources );
917 void AddSourceParser( const char *pszElementName,
918 VRTSourceParser pfnParser );
919 };
920
921 /************************************************************************/
922 /* VRTSimpleSource */
923 /************************************************************************/
924
925 class CPL_DLL VRTSimpleSource CPL_NON_FINAL: public VRTSource
926 {
927 CPL_DISALLOW_COPY_ASSIGN(VRTSimpleSource)
928
929 private:
930 // Owned by the VRTDataset
931 std::map<CPLString, GDALDataset*>* m_poMapSharedSources = nullptr;
932
933 mutable GDALRasterBand *m_poRasterBand = nullptr;
934
935 // When poRasterBand is a mask band, poMaskBandMainBand is the band
936 // from which the mask band is taken.
937 mutable GDALRasterBand *m_poMaskBandMainBand = nullptr;
938
939 CPLStringList m_aosOpenOptions{};
940
941 void OpenSource() const;
942
943 protected:
944 friend class VRTSourcedRasterBand;
945 friend class VRTDataset;
946
947 int m_nBand = 0;
948 bool m_bGetMaskBand = false;
949
950 double m_dfSrcXOff = 0;
951 double m_dfSrcYOff = 0;
952 double m_dfSrcXSize = 0;
953 double m_dfSrcYSize = 0;
954
955 double m_dfDstXOff = 0;
956 double m_dfDstYOff = 0;
957 double m_dfDstXSize = 0;
958 double m_dfDstYSize = 0;
959
960 CPLString m_osResampling{};
961
962 int m_nMaxValue = 0;
963
964 int m_bRelativeToVRTOri = -1;
965 CPLString m_osSourceFileNameOri{};
966 int m_nExplicitSharedStatus = -1; // -1 unknown, 0 = unshared, 1 = shared
967 CPLString m_osSrcDSName{};
968
969 bool m_bDropRefOnSrcBand = true;
970
971 int NeedMaxValAdjustment() const;
972
973 GDALRasterBand* GetRasterBandNoOpen() const { return m_poRasterBand; }
974
975 virtual bool ValidateOpenedBand(GDALRasterBand* /*poBand*/) const { return true; }
976
977 public:
978 VRTSimpleSource();
979 VRTSimpleSource( const VRTSimpleSource* poSrcSource,
980 double dfXDstRatio, double dfYDstRatio );
981 virtual ~VRTSimpleSource();
982
983 virtual CPLErr XMLInit( CPLXMLNode *psTree, const char *,
984 std::map<CPLString, GDALDataset*>& ) override;
985 virtual CPLXMLNode *SerializeToXML( const char *pszVRTPath ) override;
986
987 void SetSrcBand( const char* pszFilename, int nBand );
988 void SetSrcBand( GDALRasterBand * );
989 void SetSrcMaskBand( GDALRasterBand * );
990 void SetSrcWindow( double, double, double, double );
991 void SetDstWindow( double, double, double, double );
992 const CPLString& GetResampling() const { return m_osResampling; }
993 void SetResampling( const char* pszResampling );
994
995 int GetSrcDstWindow( double, double, double, double,
996 int, int,
997 double *pdfReqXOff, double *pdfReqYOff,
998 double *pdfReqXSize, double *pdfReqYSize,
999 int *, int *, int *, int *,
1000 int *, int *, int *, int *,
1001 bool& bErrorOut );
1002
1003 virtual CPLErr RasterIO( GDALDataType eBandDataType,
1004 int nXOff, int nYOff, int nXSize, int nYSize,
1005 void *pData, int nBufXSize, int nBufYSize,
1006 GDALDataType eBufType,
1007 GSpacing nPixelSpace, GSpacing nLineSpace,
1008 GDALRasterIOExtraArg* psExtraArgIn ) override;
1009
1010 virtual double GetMinimum( int nXSize, int nYSize, int *pbSuccess ) override;
1011 virtual double GetMaximum( int nXSize, int nYSize, int *pbSuccess ) override;
1012 virtual CPLErr GetHistogram( int nXSize, int nYSize,
1013 double dfMin, double dfMax,
1014 int nBuckets, GUIntBig * panHistogram,
1015 int bIncludeOutOfRange, int bApproxOK,
1016 GDALProgressFunc pfnProgress,
1017 void *pProgressData ) override;
1018
1019 void DstToSrc( double dfX, double dfY,
1020 double &dfXOut, double &dfYOut ) const;
1021 void SrcToDst( double dfX, double dfY,
1022 double &dfXOut, double &dfYOut ) const;
1023
1024 virtual void GetFileList( char*** ppapszFileList, int *pnSize,
1025 int *pnMaxSize, CPLHashSet* hSetFiles ) override;
1026
1027 virtual int IsSimpleSource() override { return TRUE; }
1028 virtual const char* GetType() { return "SimpleSource"; }
1029 virtual CPLErr FlushCache(bool bAtClosing) override;
1030
1031 GDALRasterBand* GetRasterBand() const;
1032 GDALRasterBand* GetMaskBandMainBand();
1033 int IsSameExceptBandNumber( VRTSimpleSource* poOtherSource );
1034 CPLErr DatasetRasterIO(
1035 GDALDataType eBandDataType,
1036 int nXOff, int nYOff, int nXSize, int nYSize,
1037 void * pData, int nBufXSize, int nBufYSize,
1038 GDALDataType eBufType,
1039 int nBandCount, int *panBandMap,
1040 GSpacing nPixelSpace, GSpacing nLineSpace,
1041 GSpacing nBandSpace,
1042 GDALRasterIOExtraArg* psExtraArg );
1043
1044 void UnsetPreservedRelativeFilenames();
1045
1046 void SetMaxValue( int nVal ) { m_nMaxValue = nVal; }
1047 };
1048
1049 /************************************************************************/
1050 /* VRTAveragedSource */
1051 /************************************************************************/
1052
1053 class VRTAveragedSource final: public VRTSimpleSource
1054 {
1055 CPL_DISALLOW_COPY_ASSIGN(VRTAveragedSource)
1056
1057 int m_bNoDataSet = false;
1058 double m_dfNoDataValue = VRT_NODATA_UNSET;
1059
1060 public:
1061 VRTAveragedSource();
1062 virtual CPLErr RasterIO( GDALDataType eBandDataType,
1063 int nXOff, int nYOff, int nXSize, int nYSize,
1064 void *pData, int nBufXSize, int nBufYSize,
1065 GDALDataType eBufType,
1066 GSpacing nPixelSpace, GSpacing nLineSpace,
1067 GDALRasterIOExtraArg* psExtraArgIn ) override;
1068
1069 virtual double GetMinimum( int nXSize, int nYSize, int *pbSuccess ) override;
1070 virtual double GetMaximum( int nXSize, int nYSize, int *pbSuccess ) override;
1071 virtual CPLErr GetHistogram( int nXSize, int nYSize,
1072 double dfMin, double dfMax,
1073 int nBuckets, GUIntBig * panHistogram,
1074 int bIncludeOutOfRange, int bApproxOK,
1075 GDALProgressFunc pfnProgress,
1076 void *pProgressData ) override;
1077
1078 void SetNoDataValue( double dfNoDataValue );
1079
1080 virtual CPLXMLNode *SerializeToXML( const char *pszVRTPath ) override;
1081 virtual const char* GetType() override { return "AveragedSource"; }
1082 };
1083
1084 /************************************************************************/
1085 /* VRTComplexSource */
1086 /************************************************************************/
1087
1088 typedef enum
1089 {
1090 VRT_SCALING_NONE,
1091 VRT_SCALING_LINEAR,
1092 VRT_SCALING_EXPONENTIAL,
1093 } VRTComplexSourceScaling;
1094
1095 class CPL_DLL VRTComplexSource CPL_NON_FINAL: public VRTSimpleSource
1096 {
1097 CPL_DISALLOW_COPY_ASSIGN(VRTComplexSource)
1098
1099 protected:
1100
1101 int m_bNoDataSet = false;
1102 // adjusted value should be read with GetAdjustedNoDataValue()
1103 double m_dfNoDataValue = VRT_NODATA_UNSET;
1104 std::string m_osNoDataValueOri{}; // string value read in XML deserialization
1105
1106 VRTComplexSourceScaling m_eScalingType = VRT_SCALING_NONE;
1107 double m_dfScaleOff = 0; // For linear scaling.
1108 double m_dfScaleRatio = 1; // For linear scaling.
1109
1110 // For non-linear scaling with a power function.
1111 int m_bSrcMinMaxDefined = FALSE;
1112 double m_dfSrcMin = 0;
1113 double m_dfSrcMax = 0;
1114 double m_dfDstMin = 0;
1115 double m_dfDstMax = 0;
1116 double m_dfExponent = 1;
1117
1118 int m_nColorTableComponent = 0;
1119
1120 bool m_bUseMaskBand = false;
1121
1122 double *m_padfLUTInputs = nullptr;
1123 double *m_padfLUTOutputs = nullptr;
1124 int m_nLUTItemCount = 0;
1125
1126 double GetAdjustedNoDataValue() const;
1127
1128 template <class WorkingDT>
1129 CPLErr RasterIOInternal( int nReqXOff, int nReqYOff,
1130 int nReqXSize, int nReqYSize,
1131 void *pData, int nOutXSize, int nOutYSize,
1132 GDALDataType eBufType,
1133 GSpacing nPixelSpace, GSpacing nLineSpace,
1134 GDALRasterIOExtraArg* psExtraArg,
1135 GDALDataType eWrkDataType );
1136
1137 public:
1138 VRTComplexSource();
1139 VRTComplexSource(const VRTComplexSource* poSrcSource,
1140 double dfXDstRatio, double dfYDstRatio);
1141 virtual ~VRTComplexSource();
1142
1143 virtual CPLErr RasterIO( GDALDataType eBandDataType,
1144 int nXOff, int nYOff, int nXSize, int nYSize,
1145 void *pData, int nBufXSize, int nBufYSize,
1146 GDALDataType eBufType,
1147 GSpacing nPixelSpace, GSpacing nLineSpace,
1148 GDALRasterIOExtraArg* psExtraArgIn ) override;
1149
1150 virtual double GetMinimum( int nXSize, int nYSize, int *pbSuccess ) override;
1151 virtual double GetMaximum( int nXSize, int nYSize, int *pbSuccess ) override;
1152 virtual CPLErr GetHistogram( int nXSize, int nYSize,
1153 double dfMin, double dfMax,
1154 int nBuckets, GUIntBig * panHistogram,
1155 int bIncludeOutOfRange, int bApproxOK,
1156 GDALProgressFunc pfnProgress,
1157 void *pProgressData ) override;
1158
1159 virtual CPLXMLNode *SerializeToXML( const char *pszVRTPath ) override;
1160 virtual CPLErr XMLInit( CPLXMLNode *, const char *,
1161 std::map<CPLString, GDALDataset*>& ) override;
1162 virtual const char* GetType() override { return "ComplexSource"; }
1163
1164 bool AreValuesUnchanged() const;
1165
1166 double LookupValue( double dfInput );
1167
1168 void SetNoDataValue( double dfNoDataValue );
1169
1170 void SetUseMaskBand(bool bUseMaskBand) { m_bUseMaskBand = bUseMaskBand; }
1171
1172 void SetLinearScaling( double dfOffset, double dfScale );
1173 void SetPowerScaling( double dfExponent,
1174 double dfSrcMin,
1175 double dfSrcMax,
1176 double dfDstMin,
1177 double dfDstMax );
1178 void SetColorTableComponent( int nComponent );
1179 };
1180
1181 /************************************************************************/
1182 /* VRTFilteredSource */
1183 /************************************************************************/
1184
1185 class VRTFilteredSource CPL_NON_FINAL: public VRTComplexSource
1186 {
1187 private:
1188 int IsTypeSupported( GDALDataType eTestType ) const;
1189
1190 CPL_DISALLOW_COPY_ASSIGN(VRTFilteredSource)
1191
1192 protected:
1193 int m_nSupportedTypesCount;
1194 GDALDataType m_aeSupportedTypes[20];
1195
1196 int m_nExtraEdgePixels;
1197
1198 public:
1199 VRTFilteredSource();
1200 virtual ~VRTFilteredSource();
1201
1202 void SetExtraEdgePixels( int );
1203 void SetFilteringDataTypesSupported( int, GDALDataType * );
1204
1205 virtual CPLErr FilterData( int nXSize, int nYSize, GDALDataType eType,
1206 GByte *pabySrcData, GByte *pabyDstData ) = 0;
1207
1208 virtual CPLErr RasterIO( GDALDataType eBandDataType,
1209 int nXOff, int nYOff, int nXSize, int nYSize,
1210 void *pData, int nBufXSize, int nBufYSize,
1211 GDALDataType eBufType,
1212 GSpacing nPixelSpace, GSpacing nLineSpace,
1213 GDALRasterIOExtraArg* psExtraArg ) override;
1214 };
1215
1216 /************************************************************************/
1217 /* VRTKernelFilteredSource */
1218 /************************************************************************/
1219
1220 class VRTKernelFilteredSource CPL_NON_FINAL: public VRTFilteredSource
1221 {
1222 CPL_DISALLOW_COPY_ASSIGN(VRTKernelFilteredSource)
1223
1224 protected:
1225 int m_nKernelSize;
1226
1227 bool m_bSeparable;
1228
1229 double *m_padfKernelCoefs;
1230
1231 int m_bNormalized;
1232
1233 public:
1234 VRTKernelFilteredSource();
1235 virtual ~VRTKernelFilteredSource();
1236
1237 virtual CPLErr XMLInit( CPLXMLNode *psTree, const char *,
1238 std::map<CPLString, GDALDataset*>& ) override;
1239 virtual CPLXMLNode *SerializeToXML( const char *pszVRTPath ) override;
1240
1241 virtual CPLErr FilterData( int nXSize, int nYSize, GDALDataType eType,
1242 GByte *pabySrcData, GByte *pabyDstData ) override;
1243
1244 CPLErr SetKernel( int nKernelSize, bool bSeparable, double *padfCoefs );
1245 void SetNormalized( int );
1246 };
1247
1248 /************************************************************************/
1249 /* VRTAverageFilteredSource */
1250 /************************************************************************/
1251
1252 class VRTAverageFilteredSource final: public VRTKernelFilteredSource
1253 {
1254 CPL_DISALLOW_COPY_ASSIGN(VRTAverageFilteredSource)
1255
1256 public:
1257 explicit VRTAverageFilteredSource( int nKernelSize );
1258 virtual ~VRTAverageFilteredSource();
1259
1260 virtual CPLErr XMLInit( CPLXMLNode *psTree, const char *,
1261 std::map<CPLString, GDALDataset*>& ) override;
1262 virtual CPLXMLNode *SerializeToXML( const char *pszVRTPath ) override;
1263 };
1264
1265 /************************************************************************/
1266 /* VRTFuncSource */
1267 /************************************************************************/
1268 class VRTFuncSource final: public VRTSource
1269 {
1270 CPL_DISALLOW_COPY_ASSIGN(VRTFuncSource)
1271
1272 public:
1273 VRTFuncSource();
1274 virtual ~VRTFuncSource();
1275
1276 virtual CPLErr XMLInit( CPLXMLNode *, const char *,
1277 std::map<CPLString, GDALDataset*>& ) override { return CE_Failure; }
1278 virtual CPLXMLNode *SerializeToXML( const char *pszVRTPath ) override;
1279
1280 virtual CPLErr RasterIO( GDALDataType eBandDataType,
1281 int nXOff, int nYOff, int nXSize, int nYSize,
1282 void *pData, int nBufXSize, int nBufYSize,
1283 GDALDataType eBufType,
1284 GSpacing nPixelSpace, GSpacing nLineSpace,
1285 GDALRasterIOExtraArg* psExtraArg ) override;
1286
1287 virtual double GetMinimum( int nXSize, int nYSize, int *pbSuccess ) override;
1288 virtual double GetMaximum( int nXSize, int nYSize, int *pbSuccess ) override;
1289 virtual CPLErr GetHistogram( int nXSize, int nYSize,
1290 double dfMin, double dfMax,
1291 int nBuckets, GUIntBig * panHistogram,
1292 int bIncludeOutOfRange, int bApproxOK,
1293 GDALProgressFunc pfnProgress,
1294 void *pProgressData ) override;
1295
1296 VRTImageReadFunc pfnReadFunc;
1297 void *pCBData;
1298 GDALDataType eType;
1299
1300 float fNoDataValue;
1301 };
1302
1303 /************************************************************************/
1304 /* VRTGroup */
1305 /************************************************************************/
1306
1307 #ifdef TMPEXPORT
1308 #define TMP_CPL_DLL CPL_DLL
1309 #else
1310 #define TMP_CPL_DLL
1311 #endif
1312
1313 class VRTMDArray;
1314 class VRTAttribute;
1315 class VRTDimension;
1316
1317 class VRTGroup final: public GDALGroup
1318 {
1319 public:
1320 struct Ref
1321 {
1322 VRTGroup* m_ptr;
1323 explicit Ref(VRTGroup* ptr): m_ptr(ptr) {}
1324 Ref(const Ref&) = delete;
1325 Ref& operator=(const Ref&) = delete;
1326 };
1327
1328 private:
1329 std::shared_ptr<Ref> m_poSharedRefRootGroup{};
1330 std::weak_ptr<Ref> m_poWeakRefRootGroup{};
1331 std::shared_ptr<Ref> m_poRefSelf{};
1332
1333 std::string m_osFilename{};
1334 mutable bool m_bDirty = false;
1335 std::string m_osVRTPath{};
1336 std::map<std::string, std::shared_ptr<VRTGroup>> m_oMapGroups{};
1337 std::map<std::string, std::shared_ptr<VRTMDArray>> m_oMapMDArrays{};
1338 std::map<std::string, std::shared_ptr<VRTAttribute>> m_oMapAttributes{};
1339 std::map<std::string, std::shared_ptr<VRTDimension>> m_oMapDimensions{};
1340
1341 std::shared_ptr<VRTGroup> OpenGroupInternal(const std::string& osName) const;
1342 void SetRootGroupRef(const std::weak_ptr<Ref>& rgRef);
1343 std::weak_ptr<Ref> GetRootGroupRef() const;
1344
1345 public:
1346
1347 VRTGroup(const std::string& osParentName, const std::string& osName);
1348 ~VRTGroup();
1349
1350 bool XMLInit(const std::shared_ptr<VRTGroup>& poRoot,
1351 const std::shared_ptr<VRTGroup>& poThisGroup,
1352 const CPLXMLNode* psNode,
1353 const char* pszVRTPath);
1354
1355 std::vector<std::string> GetMDArrayNames(CSLConstList papszOptions) const override;
1356 std::shared_ptr<GDALMDArray> OpenMDArray(const std::string& osName,
1357 CSLConstList papszOptions = nullptr) const override;
1358
1359 std::vector<std::string> GetGroupNames(CSLConstList papszOptions) const override;
1360 std::shared_ptr<GDALGroup> OpenGroup(const std::string& osName,
1361 CSLConstList) const override
1362 {
1363 return OpenGroupInternal(osName);
1364 }
1365
1366 std::vector<std::shared_ptr<GDALDimension>> GetDimensions(CSLConstList) const override;
1367
1368 std::vector<std::shared_ptr<GDALAttribute>> GetAttributes(CSLConstList) const override;
1369
1370 std::shared_ptr<VRTDimension> GetDimension(const std::string& name) const {
1371 auto oIter = m_oMapDimensions.find(name);
1372 return oIter == m_oMapDimensions.end() ? nullptr : oIter->second;
1373 }
1374 std::shared_ptr<VRTDimension> GetDimensionFromFullName(const std::string& name,
1375 bool bEmitError) const;
1376
1377 std::shared_ptr<GDALGroup> CreateGroup(const std::string& osName,
1378 CSLConstList papszOptions = nullptr) override;
1379
1380 std::shared_ptr<GDALDimension> CreateDimension(const std::string& osName,
1381 const std::string& osType,
1382 const std::string& osDirection,
1383 GUInt64 nSize,
1384 CSLConstList papszOptions = nullptr) override;
1385
1386 std::shared_ptr<GDALAttribute> CreateAttribute(
1387 const std::string& osName,
1388 const std::vector<GUInt64>& anDimensions,
1389 const GDALExtendedDataType& oDataType,
1390 CSLConstList papszOptions = nullptr) override;
1391
1392 std::shared_ptr<GDALMDArray> CreateMDArray(const std::string& osName,
1393 const std::vector<std::shared_ptr<GDALDimension>>& aoDimensions,
1394 const GDALExtendedDataType& oDataType,
1395 CSLConstList papszOptions) override;
1396
1397 void SetIsRootGroup();
1398
1399 const std::shared_ptr<Ref>& GetRef() const { return m_poRefSelf; }
1400 VRTGroup* GetRootGroup() const;
1401
1402 const std::string& GetVRTPath() const { return m_osVRTPath; }
1403 void SetDirty();
1404 void SetFilename(const std::string& osFilename) { m_osFilename = osFilename; }
1405 const std::string& GetFilename() const { return m_osFilename; }
1406 void Serialize() const;
1407 CPLXMLNode* SerializeToXML( const char *pszVRTPathIn ) const;
1408 void Serialize(CPLXMLNode* psParent, const char *pszVRTPathIn) const;
1409 };
1410
1411 /************************************************************************/
1412 /* VRTDimension */
1413 /************************************************************************/
1414
1415 class VRTDimension final: public GDALDimension
1416 {
1417 std::weak_ptr<VRTGroup::Ref> m_poGroupRef;
1418 std::string m_osIndexingVariableName;
1419
1420 public:
1421 VRTDimension(const std::shared_ptr<VRTGroup::Ref>& poGroupRef,
1422 const std::string& osParentName,
1423 const std::string& osName,
1424 const std::string& osType,
1425 const std::string& osDirection,
1426 GUInt64 nSize,
1427 const std::string& osIndexingVariableName):
1428 GDALDimension(osParentName, osName, osType, osDirection, nSize),
1429 m_poGroupRef(poGroupRef),
1430 m_osIndexingVariableName(osIndexingVariableName)
1431 {}
1432
1433 VRTGroup* GetGroup() const;
1434
1435 static std::shared_ptr<VRTDimension> Create(const std::shared_ptr<VRTGroup>& poThisGroup,
1436 const std::string& osParentName,
1437 const CPLXMLNode* psNode);
1438
1439 std::shared_ptr<GDALMDArray> GetIndexingVariable() const override;
1440
1441 bool SetIndexingVariable(std::shared_ptr<GDALMDArray> poIndexingVariable) override;
1442
1443 void Serialize(CPLXMLNode* psParent) const;
1444 };
1445
1446 /************************************************************************/
1447 /* VRTAttribute */
1448 /************************************************************************/
1449
1450 class VRTAttribute final: public GDALAttribute
1451 {
1452 GDALExtendedDataType m_dt;
1453 std::vector<std::string> m_aosList{};
1454 std::vector<std::shared_ptr<GDALDimension>> m_dims{};
1455
1456 protected:
1457
1458 bool IRead(const GUInt64* arrayStartIdx,
1459 const size_t* count,
1460 const GInt64* arrayStep,
1461 const GPtrDiff_t* bufferStride,
1462 const GDALExtendedDataType& bufferDataType,
1463 void* pDstBuffer) const override;
1464
1465 bool IWrite(const GUInt64* arrayStartIdx,
1466 const size_t* count,
1467 const GInt64* arrayStep,
1468 const GPtrDiff_t* bufferStride,
1469 const GDALExtendedDataType& bufferDataType,
1470 const void* pSrcBuffer) override;
1471
1472
1473 public:
1474 VRTAttribute(const std::string& osParentName,
1475 const std::string& osName,
1476 const GDALExtendedDataType& dt,
1477 std::vector<std::string>&& aosList):
1478 GDALAbstractMDArray(osParentName, osName),
1479 GDALAttribute(osParentName, osName),
1480 m_dt(dt),
1481 m_aosList(std::move(aosList))
1482 {
1483 if( m_aosList.size() > 1 )
1484 {
1485 m_dims.emplace_back(std::make_shared<GDALDimension>(
1486 std::string(), "dim",
1487 std::string(), std::string(), m_aosList.size()));
1488 }
1489 }
1490
1491 VRTAttribute(const std::string& osParentName,
1492 const std::string& osName,
1493 GUInt64 nDim,
1494 const GDALExtendedDataType& dt):
1495 GDALAbstractMDArray(osParentName, osName),
1496 GDALAttribute(osParentName, osName),
1497 m_dt(dt)
1498 {
1499 if( nDim != 0 )
1500 {
1501 m_dims.emplace_back(std::make_shared<GDALDimension>(
1502 std::string(), "dim",
1503 std::string(), std::string(), nDim));
1504 }
1505 }
1506
1507 static bool CreationCommonChecks(const std::string& osName,
1508 const std::vector<GUInt64>& anDimensions,
1509 const std::map<std::string, std::shared_ptr<VRTAttribute>>& oMapAttributes);
1510
1511 static std::shared_ptr<VRTAttribute> Create(const std::string& osParentName,
1512 const CPLXMLNode* psNode);
1513
1514 const std::vector<std::shared_ptr<GDALDimension>>& GetDimensions() const override { return m_dims; }
1515
1516 const GDALExtendedDataType &GetDataType() const override { return m_dt; }
1517
1518 void Serialize(CPLXMLNode* psParent) const;
1519 };
1520
1521 /************************************************************************/
1522 /* VRTMDArraySource */
1523 /************************************************************************/
1524
1525 class VRTMDArraySource
1526 {
1527 public:
1528 virtual ~VRTMDArraySource() = default;
1529
1530 virtual bool Read(const GUInt64* arrayStartIdx,
1531 const size_t* count,
1532 const GInt64* arrayStep,
1533 const GPtrDiff_t* bufferStride,
1534 const GDALExtendedDataType& bufferDataType,
1535 void* pDstBuffer) const = 0;
1536
1537 virtual void Serialize(CPLXMLNode* psParent, const char* pszVRTPath) const = 0;
1538 };
1539
1540 /************************************************************************/
1541 /* VRTMDArray */
1542 /************************************************************************/
1543
1544 class VRTMDArray final: public GDALMDArray
1545 {
1546 protected:
1547 friend class VRTGroup; // for access to SetSelf()
1548
1549 std::weak_ptr<VRTGroup::Ref> m_poGroupRef;
1550 std::string m_osVRTPath{};
1551
1552 GDALExtendedDataType m_dt;
1553 std::vector<std::shared_ptr<GDALDimension>> m_dims;
1554 std::map<std::string, std::shared_ptr<VRTAttribute>> m_oMapAttributes{};
1555 std::vector<std::unique_ptr<VRTMDArraySource>> m_sources{};
1556 std::shared_ptr<OGRSpatialReference> m_poSRS{};
1557 std::vector<GByte> m_abyNoData{};
1558 std::string m_osUnit{};
1559 double m_dfScale = 1.0;
1560 double m_dfOffset = 0.0;
1561 bool m_bHasScale = false;
1562 bool m_bHasOffset = false;
1563 std::string m_osFilename{};
1564
1565 bool IRead(const GUInt64* arrayStartIdx,
1566 const size_t* count,
1567 const GInt64* arrayStep,
1568 const GPtrDiff_t* bufferStride,
1569 const GDALExtendedDataType& bufferDataType,
1570 void* pDstBuffer) const override;
1571
1572 void SetDirty();
1573
1574 public:
1575 VRTMDArray(const std::shared_ptr<VRTGroup::Ref>& poGroupRef,
1576 const std::string& osParentName,
1577 const std::string& osName,
1578 const GDALExtendedDataType& dt,
1579 std::vector<std::shared_ptr<GDALDimension>>&& dims,
1580 std::map<std::string, std::shared_ptr<VRTAttribute>>&& oMapAttributes) :
1581 GDALAbstractMDArray(osParentName, osName),
1582 GDALMDArray(osParentName, osName),
1583 m_poGroupRef(poGroupRef),
1584 m_osVRTPath(poGroupRef->m_ptr->GetVRTPath()),
1585 m_dt(dt),
1586 m_dims(std::move(dims)),
1587 m_oMapAttributes(std::move(oMapAttributes)),
1588 m_osFilename(poGroupRef->m_ptr->GetFilename())
1589 {
1590 }
1591
1592 VRTMDArray(const std::shared_ptr<VRTGroup::Ref>& poGroupRef,
1593 const std::string& osParentName,
1594 const std::string& osName,
1595 const std::vector<std::shared_ptr<GDALDimension>>& dims,
1596 const GDALExtendedDataType& dt) :
1597 GDALAbstractMDArray(osParentName, osName),
1598 GDALMDArray(osParentName, osName),
1599 m_poGroupRef(poGroupRef),
1600 m_osVRTPath(poGroupRef->m_ptr->GetVRTPath()),
1601 m_dt(dt),
1602 m_dims(dims),
1603 m_osFilename(poGroupRef->m_ptr->GetFilename())
1604 {
1605 }
1606
1607 bool IsWritable() const override { return false; }
1608
1609 const std::string& GetFilename() const override { return m_osFilename; }
1610
1611 static std::shared_ptr<VRTMDArray> Create(const std::shared_ptr<VRTGroup>& poThisGroup,
1612 const std::string& osParentName,
1613 const CPLXMLNode* psNode);
1614
1615 const std::vector<std::shared_ptr<GDALDimension>>& GetDimensions() const override { return m_dims; }
1616
1617 std::vector<std::shared_ptr<GDALAttribute>> GetAttributes(CSLConstList) const override;
1618
1619 const GDALExtendedDataType &GetDataType() const override { return m_dt; }
1620
1621 bool SetSpatialRef(const OGRSpatialReference* poSRS) override;
1622
1623 std::shared_ptr<OGRSpatialReference> GetSpatialRef() const override { return m_poSRS; }
1624
1625 const void* GetRawNoDataValue() const override;
1626
1627 bool SetRawNoDataValue(const void* pRawNoData) override;
1628
1629 const std::string& GetUnit() const override { return m_osUnit; }
1630
1631 bool SetUnit(const std::string& osUnit) override {
1632 m_osUnit = osUnit; return true; }
1633
1634 double GetOffset(bool* pbHasOffset, GDALDataType* peStorageType) const override
1635 {
1636 if( pbHasOffset) *pbHasOffset = m_bHasOffset;
1637 if( peStorageType ) *peStorageType = GDT_Unknown;
1638 return m_dfOffset;
1639 }
1640
1641 double GetScale(bool* pbHasScale, GDALDataType* peStorageType) const override
1642 {
1643 if( pbHasScale) *pbHasScale = m_bHasScale;
1644 if( peStorageType ) *peStorageType = GDT_Unknown;
1645 return m_dfScale;
1646 }
1647
1648 bool SetOffset(double dfOffset, GDALDataType /* eStorageType */ = GDT_Unknown) override
1649 { SetDirty(); m_bHasOffset = true; m_dfOffset = dfOffset; return true; }
1650
1651 bool SetScale(double dfScale, GDALDataType /* eStorageType */ = GDT_Unknown) override
1652 { SetDirty(); m_bHasScale = true; m_dfScale = dfScale; return true; }
1653
1654 void AddSource(std::unique_ptr<VRTMDArraySource>&& poSource);
1655
1656 std::shared_ptr<GDALAttribute> CreateAttribute(
1657 const std::string& osName,
1658 const std::vector<GUInt64>& anDimensions,
1659 const GDALExtendedDataType& oDataType,
1660 CSLConstList papszOptions = nullptr) override;
1661
1662 bool CopyFrom(GDALDataset* poSrcDS,
1663 const GDALMDArray* poSrcArray,
1664 bool bStrict,
1665 GUInt64& nCurCost,
1666 const GUInt64 nTotalCost,
1667 GDALProgressFunc pfnProgress,
1668 void * pProgressData) override;
1669
1670 void Serialize(CPLXMLNode* psParent, const char *pszVRTPathIn ) const;
1671
1672 VRTGroup* GetGroup() const;
1673
1674 const std::string& GetVRTPath() const { return m_osVRTPath; }
1675 };
1676
1677 /************************************************************************/
1678 /* VRTMDArraySourceInlinedValues */
1679 /************************************************************************/
1680
1681 class VRTMDArraySourceInlinedValues final: public VRTMDArraySource
1682 {
1683 const VRTMDArray* m_poDstArray = nullptr;
1684 bool m_bIsConstantValue;
1685 std::vector<GUInt64> m_anOffset{};
1686 std::vector<size_t> m_anCount{};
1687 std::vector<GByte> m_abyValues{};
1688 std::vector<size_t> m_anInlinedArrayStrideInBytes{};
1689 GDALExtendedDataType m_dt;
1690
1691 VRTMDArraySourceInlinedValues(const VRTMDArraySourceInlinedValues&) = delete;
1692 VRTMDArraySourceInlinedValues& operator=(const VRTMDArraySourceInlinedValues&) = delete;
1693
1694 public:
1695 VRTMDArraySourceInlinedValues(const VRTMDArray* poDstArray,
1696 bool bIsConstantValue,
1697 std::vector<GUInt64>&& anOffset,
1698 std::vector<size_t>&& anCount,
1699 std::vector<GByte>&& abyValues):
1700 m_poDstArray(poDstArray),
1701 m_bIsConstantValue(bIsConstantValue),
1702 m_anOffset(std::move(anOffset)),
1703 m_anCount(std::move(anCount)),
1704 m_abyValues(std::move(abyValues)),
1705 m_dt(poDstArray->GetDataType())
1706 {
1707 const auto nDims(poDstArray->GetDimensionCount());
1708 m_anInlinedArrayStrideInBytes.resize(nDims);
1709 if( !bIsConstantValue && nDims > 0 )
1710 {
1711 m_anInlinedArrayStrideInBytes.back() = poDstArray->GetDataType().GetSize();
1712 for(size_t i = nDims - 1; i > 0; )
1713 {
1714 --i;
1715 m_anInlinedArrayStrideInBytes[i] =
1716 m_anInlinedArrayStrideInBytes[i+1] * m_anCount[i+1];
1717 }
1718 }
1719 }
1720
1721 ~VRTMDArraySourceInlinedValues();
1722
1723 static std::unique_ptr<VRTMDArraySourceInlinedValues> Create(
1724 const VRTMDArray* poDstArray,
1725 const CPLXMLNode* psNode);
1726
1727 bool Read(const GUInt64* arrayStartIdx,
1728 const size_t* count,
1729 const GInt64* arrayStep,
1730 const GPtrDiff_t* bufferStride,
1731 const GDALExtendedDataType& bufferDataType,
1732 void* pDstBuffer) const override;
1733
1734 void Serialize(CPLXMLNode* psParent, const char* pszVRTPath) const override;
1735 };
1736
1737 /************************************************************************/
1738 /* VRTMDArraySourceRegularlySpaced */
1739 /************************************************************************/
1740
1741 class VRTMDArraySourceRegularlySpaced final: public VRTMDArraySource
1742 {
1743 double m_dfStart;
1744 double m_dfIncrement;
1745
1746 public:
1747 VRTMDArraySourceRegularlySpaced(
1748 double dfStart, double dfIncrement):
1749 m_dfStart(dfStart),
1750 m_dfIncrement(dfIncrement)
1751 {
1752 }
1753
1754 bool Read(const GUInt64* arrayStartIdx,
1755 const size_t* count,
1756 const GInt64* arrayStep,
1757 const GPtrDiff_t* bufferStride,
1758 const GDALExtendedDataType& bufferDataType,
1759 void* pDstBuffer) const override;
1760
1761 void Serialize(CPLXMLNode* psParent, const char* pszVRTPath) const override;
1762 };
1763
1764 /************************************************************************/
1765 /* VRTMDArraySourceFromArray */
1766 /************************************************************************/
1767
1768 class VRTMDArraySourceFromArray final: public VRTMDArraySource
1769 {
1770 const VRTMDArray* m_poDstArray = nullptr;
1771 bool m_bRelativeToVRTSet = false;
1772 bool m_bRelativeToVRT = false;
1773 std::string m_osFilename{};
1774 std::string m_osArray{};
1775 std::string m_osBand{};
1776 std::vector<int> m_anTransposedAxis{};
1777 std::string m_osViewExpr{};
1778 std::vector<GUInt64> m_anSrcOffset{};
1779 mutable std::vector<GUInt64> m_anCount{};
1780 std::vector<GUInt64> m_anStep{};
1781 std::vector<GUInt64> m_anDstOffset{};
1782
1783 VRTMDArraySourceFromArray(const VRTMDArraySourceFromArray&) = delete;
1784 VRTMDArraySourceFromArray& operator=(const VRTMDArraySourceFromArray&) = delete;
1785
1786 public:
1787 VRTMDArraySourceFromArray(const VRTMDArray* poDstArray,
1788 bool bRelativeToVRTSet,
1789 bool bRelativeToVRT,
1790 const std::string& osFilename,
1791 const std::string& osArray,
1792 const std::string& osBand,
1793 std::vector<int>&& anTransposedAxis,
1794 const std::string& osViewExpr,
1795 std::vector<GUInt64>&& anSrcOffset,
1796 std::vector<GUInt64>&& anCount,
1797 std::vector<GUInt64>&& anStep,
1798 std::vector<GUInt64>&& anDstOffset):
1799 m_poDstArray(poDstArray),
1800 m_bRelativeToVRTSet(bRelativeToVRTSet),
1801 m_bRelativeToVRT(bRelativeToVRT),
1802 m_osFilename(osFilename),
1803 m_osArray(osArray),
1804 m_osBand(osBand),
1805 m_anTransposedAxis(std::move(anTransposedAxis)),
1806 m_osViewExpr(osViewExpr),
1807 m_anSrcOffset(std::move(anSrcOffset)),
1808 m_anCount(std::move(anCount)),
1809 m_anStep(std::move(anStep)),
1810 m_anDstOffset(std::move(anDstOffset))
1811 {
1812 }
1813
1814 ~VRTMDArraySourceFromArray() override;
1815
1816 static std::unique_ptr<VRTMDArraySourceFromArray> Create(
1817 const VRTMDArray* poDstArray,
1818 const CPLXMLNode* psNode);
1819
1820 bool Read(const GUInt64* arrayStartIdx,
1821 const size_t* count,
1822 const GInt64* arrayStep,
1823 const GPtrDiff_t* bufferStride,
1824 const GDALExtendedDataType& bufferDataType,
1825 void* pDstBuffer) const override;
1826
1827 void Serialize(CPLXMLNode* psParent, const char* pszVRTPath) const override;
1828 };
1829
1830 #endif /* #ifndef DOXYGEN_SKIP */
1831
1832 #endif /* ndef VIRTUALDATASET_H_INCLUDED */
GDALGroup::CreateMDArray
virtual std::shared_ptr< GDALMDArray > CreateMDArray(const std::string &osName, const std::vector< std::shared_ptr< GDALDimension >> &aoDimensions, const GDALExtendedDataType &oDataType, CSLConstList papszOptions=nullptr)
Create a multidimensional array within a group.
Definition: gdalmultidim.cpp:566
GDALDataset::GetShared
int GetShared() const
Returns shared flag.
Definition: gdaldataset.cpp:1376
GDALRasterBand::SetNoDataValue
virtual CPLErr SetNoDataValue(double dfNoData)
Set the no data value for this band.
Definition: gdalrasterband.cpp:1850
GDALDimension::SetIndexingVariable
virtual bool SetIndexingVariable(std::shared_ptr< GDALMDArray > poIndexingVariable)
Set the variable that is used to index the dimension.
Definition: gdalmultidim.cpp:8648
GDALMDArray::GetUnit
virtual const std::string & GetUnit() const
Return the array unit.
Definition: gdalmultidim.cpp:2155
GDALMDArray::GetSpatialRef
virtual std::shared_ptr< OGRSpatialReference > GetSpatialRef() const
Return the spatial reference system object associated with the array.
Definition: gdalmultidim.cpp:2183
GDALRasterBand::GetColorTable
virtual GDALColorTable * GetColorTable()
Fetch the color table associated with band.
Definition: gdalrasterband.cpp:2374
GByte
unsigned char GByte
Unsigned byte type.
Definition: cpl_port.h:203
GDALExtendedDataType
Class used to represent potentially complex data types.
Definition: gdal_priv.h:1879
GUInt64
GUIntBig GUInt64
Unsigned 64 bit integer type.
Definition: cpl_port.h:251
GDALOpenInfo
Class for dataset open functions.
Definition: gdal_priv.h:271
GDALRasterBand::GetUnitType
virtual const char * GetUnitType()
Return raster unit type.
Definition: gdalrasterband.cpp:2954
GDALRasterBand::DeleteNoDataValue
virtual CPLErr DeleteNoDataValue()
Remove the no data value for this band.
Definition: gdalrasterband.cpp:2052
GDALRasterBand::GetOffset
virtual double GetOffset(int *pbSuccess=nullptr)
Fetch the raster value offset.
Definition: gdalrasterband.cpp:2752
GDALRasterBand::SetColorTable
virtual CPLErr SetColorTable(GDALColorTable *poCT)
Set the raster color table.
Definition: gdalrasterband.cpp:2423
VRT_NODATA_UNSET
#define VRT_NODATA_UNSET
Special value to indicate that nodata is not set.
Definition: gdal_vrt.h:45
GDALRasterBand::GetDefaultHistogram
virtual CPLErr GetDefaultHistogram(double *pdfMin, double *pdfMax, int *pnBuckets, GUIntBig **ppanHistogram, int bForce, GDALProgressFunc, void *pProgressData)
Fetch default raster histogram.
Definition: gdalrasterband.cpp:3825
GDALRasterBand::IsMaskBand
virtual bool IsMaskBand() const
Returns whether a band is a mask band.
Definition: gdalrasterband.cpp:7182
VRTDatasetH
void * VRTDatasetH
Opaque type for a VRT dataset.
Definition: gdal_vrt.h:76
GDALRasterBand::GetDataset
GDALDataset * GetDataset()
Fetch the owning dataset handle.
Definition: gdalrasterband.cpp:3164
GDALMDArray::SetUnit
virtual bool SetUnit(const std::string &osUnit)
Set the variable unit.
Definition: gdalmultidim.cpp:2133
GDALDataset::AddBand
virtual CPLErr AddBand(GDALDataType eType, char **papszOptions=nullptr)
Add a band to a dataset.
Definition: gdaldataset.cpp:586
GDALMDArray::IsWritable
virtual bool IsWritable() const =0
Return whether an array is writable.
GDALDataset::GetRootGroup
virtual std::shared_ptr< GDALGroup > GetRootGroup() const
Return the root GDALGroup of this dataset.
Definition: gdaldataset.cpp:8280
cpl_hash_set.h
CPLStringList
String list class designed around our use of C "char**" string lists.
Definition: cpl_string.h:429
GDT_Unknown
@ GDT_Unknown
Definition: gdal.h:64
cpl_minixml.h
GDALDriver
Format specific driver.
Definition: gdal_priv.h:1558
OGRSpatialReference
This class represents an OpenGIS Spatial Reference System, and contains methods for converting betwee...
Definition: ogr_spatialref.h:157
GDALAbstractMDArray
Abstract class, implemented by GDALAttribute and GDALMDArray.
Definition: gdal_priv.h:2162
GDALRasterBand::SetDefaultHistogram
virtual CPLErr SetDefaultHistogram(double dfMin, double dfMax, int nBuckets, GUIntBig *panHistogram)
Set default histogram.
Definition: gdalrasterband.cpp:6488
GDALMDArray::GetScale
virtual double GetScale(bool *pbHasScale=nullptr, GDALDataType *peStorageType=nullptr) const
Get the scale value to apply to raw values.
Definition: gdalmultidim.cpp:2498
GDALClose
void GDALClose(GDALDatasetH)
Close GDAL dataset.
Definition: gdaldataset.cpp:3641
GDALRasterBand::SetUnitType
virtual CPLErr SetUnitType(const char *pszNewValue)
Set unit type.
Definition: gdalrasterband.cpp:3002
GDALRasterBand::GetColorInterpretation
virtual GDALColorInterp GetColorInterpretation()
How should this band be interpreted as color?
Definition: gdalrasterband.cpp:2282
gdal_vrt.h
GDALGroup::CreateDimension
virtual std::shared_ptr< GDALDimension > CreateDimension(const std::string &osName, const std::string &osType, const std::string &osDirection, GUInt64 nSize, CSLConstList papszOptions=nullptr)
Create a dimension within a group.
Definition: gdalmultidim.cpp:526
GDALRasterBand::GetCategoryNames
virtual char ** GetCategoryNames()
Fetch the list of category names for this raster.
Definition: gdalrasterband.cpp:1561
GDALAbstractMDArray::GetDimensions
virtual const std::vector< std::shared_ptr< GDALDimension > > & GetDimensions() const =0
Return the dimensions of an attribute/array.
GDALColorInterp
GDALColorInterp
Definition: gdal.h:204
GDALMajorObject::SetDescription
virtual void SetDescription(const char *)
Set object description.
Definition: gdalmajorobject.cpp:119
CPLString
Convenient string class based on std::string.
Definition: cpl_string.h:320
GDALRasterBand
A single raster band (or channel).
Definition: gdal_priv.h:1179
GInt64
GIntBig GInt64
Signed 64 bit integer type.
Definition: cpl_port.h:249
GDALIHasAttribute::GetAttributes
virtual std::vector< std::shared_ptr< GDALAttribute > > GetAttributes(CSLConstList papszOptions=nullptr) const
Return the list of attributes contained in a GDALMDArray or GDALGroup.
Definition: gdalmultidim.cpp:223
GPtrDiff_t
int GPtrDiff_t
Integer type large enough to hold the difference between 2 addresses.
Definition: cpl_port.h:269
CPL_NON_FINAL
#define CPL_NON_FINAL
Mark that a class is explicitly recognized as non-final.
Definition: cpl_port.h:923
GDALDataset::AdviseRead
virtual CPLErr AdviseRead(int nXOff, int nYOff, int nXSize, int nYSize, int nBufXSize, int nBufYSize, GDALDataType eDT, int nBandCount, int *panBandList, char **papszOptions)
Advise driver of upcoming read requests.
Definition: gdaldataset.cpp:2722
GDALDataset::GetMetadata
void static void char ** GetMetadata(const char *pszDomain="") override
Fetch metadata.
Definition: gdaldataset.cpp:4113
GDALDataType
GDALDataType
Definition: gdal.h:63
CPLXMLNode
Document node structure.
Definition: cpl_minixml.h:69
GDALWarpOperation
Definition: gdalwarper.h:463
GDALDataset::SetGCPs
virtual CPLErr SetGCPs(int nGCPCount, const GDAL_GCP *pasGCPList, const OGRSpatialReference *poGCP_SRS)
Assign GCPs.
Definition: gdaldataset.cpp:1714
GDALDataset::GetGCPs
virtual const GDAL_GCP * GetGCPs()
Fetch GCPs.
Definition: gdaldataset.cpp:1609
GDALGroup
Class modeling a named container of GDALAttribute, GDALMDArray, OGRLayer or other GDALGroup.
Definition: gdal_priv.h:2060
GDALDataset
A set of associated raster bands, usually from one file.
Definition: gdal_priv.h:342
GDALGroup::GetGroupNames
virtual std::vector< std::string > GetGroupNames(CSLConstList papszOptions=nullptr) const
Return the list of sub-groups contained in this group.
Definition: gdalmultidim.cpp:348
CPLHashSet
struct _CPLHashSet CPLHashSet
Opaque type for a hash set.
Definition: cpl_hash_set.h:52
GDALRasterBand::SetNoDataValueAsInt64
virtual CPLErr SetNoDataValueAsInt64(int64_t nNoData)
Set the no data value for this band.
Definition: gdalrasterband.cpp:1922
GDALRasterBand::GetOverviewCount
virtual int GetOverviewCount()
Return the number of overview layers available.
Definition: gdalrasterband.cpp:2508
GDALMDArray
Class modeling a multi-dimensional array.
Definition: gdal_priv.h:2456
GDALRasterBand::SetDefaultRAT
virtual CPLErr SetDefaultRAT(const GDALRasterAttributeTable *poRAT)
Set default Raster Attribute Table.
Definition: gdalrasterband.cpp:6635
GDALMDArray::SetSpatialRef
virtual bool SetSpatialRef(const OGRSpatialReference *poSRS)
Assign a spatial reference system object to the the array.
Definition: gdalmultidim.cpp:2169
GDALRasterBand::GetMaskBand
virtual GDALRasterBand * GetMaskBand()
Return the mask band associated with the band.
Definition: gdalrasterband.cpp:6720
GDALMajorObject::GetMetadata
virtual char ** GetMetadata(const char *pszDomain="")
Fetch metadata.
Definition: gdalmajorobject.cpp:248
CSLConstList
char ** CSLConstList
Type of a constant null-terminated list of nul terminated strings.
Definition: cpl_port.h:1056
GUIntBig
unsigned long long GUIntBig
Large unsigned integer type (generally 64-bit unsigned integer type).
Definition: cpl_port.h:233
GDALDataset::Open
static GDALDataset * Open(const char *pszFilename, unsigned int nOpenFlags=0, const char *const *papszAllowedDrivers=nullptr, const char *const *papszOpenOptions=nullptr, const char *const *papszSiblingFiles=nullptr)
Definition: gdal_priv.h:668
GDALGroup::CreateGroup
virtual std::shared_ptr< GDALGroup > CreateGroup(const std::string &osName, CSLConstList papszOptions=nullptr)
Create a sub-group within a group.
Definition: gdalmultidim.cpp:497
GDALDataset::GetGCPSpatialRef
virtual const OGRSpatialReference * GetGCPSpatialRef() const
Get output spatial reference system for GCPs.
Definition: gdaldataset.cpp:1551
GDALDataset::SetSpatialRef
virtual CPLErr SetSpatialRef(const OGRSpatialReference *poSRS)
Set the spatial reference system for this dataset.
Definition: gdaldataset.cpp:1017
GDALDataset::Dereference
int Dereference()
Subtract one from dataset reference count.
Definition: gdaldataset.cpp:1304
GDAL_GCP
Ground Control Point.
Definition: gdal.h:892
GDALDerivedPixelFuncWithArgs
CPLErr(* GDALDerivedPixelFuncWithArgs)(void **papoSources, int nSources, void *pData, int nBufXSize, int nBufYSize, GDALDataType eSrcType, GDALDataType eBufType, int nPixelSpace, int nLineSpace, CSLConstList papszFunctionArgs)
Type of functions to pass to GDALAddDerivedBandPixelFuncWithArgs.
Definition: gdal.h:1159
GDALDimension
Class modeling a a dimension / axis used to index multidimensional arrays.
Definition: gdal_priv.h:2763
GDALDataset::GetGCPCount
virtual int GetGCPCount()
Get number of GCPs.
Definition: gdaldataset.cpp:1468
GCI_Undefined
@ GCI_Undefined
Definition: gdal.h:206
GDALMDArray::SetOffset
virtual bool SetOffset(double dfOffset, GDALDataType eStorageType=GDT_Unknown)
Set the offset value to apply to raw values.
Definition: gdalmultidim.cpp:2469
GDALRasterBand::GetOverview
virtual GDALRasterBand * GetOverview(int)
Fetch overview raster band object.
Definition: gdalrasterband.cpp:2550
GDALAbstractMDArray::GetDataType
virtual const GDALExtendedDataType & GetDataType() const =0
Return the data type of an attribute/array.
GDALMajorObject::GetMetadataDomainList
virtual char ** GetMetadataDomainList()
Fetch list of metadata domains.
Definition: gdalmajorobject.cpp:160
CPLVirtualMem
struct CPLVirtualMem CPLVirtualMem
Opaque type that represents a virtual memory mapping.
Definition: cpl_virtualmem.h:62
GDALMDArray::SetRawNoDataValue
virtual bool SetRawNoDataValue(const void *pRawNoData)
Set the nodata value as a "raw" value.
Definition: gdalmultidim.cpp:2327
GDALRasterBand::SetScale
virtual CPLErr SetScale(double dfNewScale)
Set scaling ratio.
Definition: gdalrasterband.cpp:2907
GDALMajorObject::SetMetadata
virtual CPLErr SetMetadata(char **papszMetadata, const char *pszDomain="")
Set metadata.
Definition: gdalmajorobject.cpp:291
GDALDataset::CloseDependentDatasets
virtual int CloseDependentDatasets()
Drop references to any other datasets referenced by this dataset.
Definition: gdaldataset.cpp:4028
GDALDataset::CreateMaskBand
virtual CPLErr CreateMaskBand(int nFlagsIn)
Adds a mask band to the dataset.
Definition: gdaldataset.cpp:3028
VRTImageReadFunc
CPLErr(* VRTImageReadFunc)(void *hCBData, int nXOff, int nYOff, int nXSize, int nYSize, void *pData)
Type for a function that returns the pixel data in a provided window.
Definition: gdal_vrt.h:51
GSpacing
GIntBig GSpacing
Type to express pixel, line or band spacing.
Definition: gdal.h:292
vsi_l_offset
GUIntBig vsi_l_offset
Type for a file offset.
Definition: cpl_vsi.h:142
GDALRasterBand::GetNoDataValue
virtual double GetNoDataValue(int *pbSuccess=nullptr)
Fetch the no data value for this band.
Definition: gdalrasterband.cpp:1665
GDALAccess
GDALAccess
Definition: gdal.h:116
GDALRasterBand::GetNoDataValueAsInt64
virtual int64_t GetNoDataValueAsInt64(int *pbSuccess=nullptr)
Fetch the no data value for this band.
Definition: gdalrasterband.cpp:1721
gdal_priv.h
GDALRasterBand::SetNoDataValueAsUInt64
virtual CPLErr SetNoDataValueAsUInt64(uint64_t nNoData)
Set the no data value for this band.
Definition: gdalrasterband.cpp:1994
GA_ReadOnly
@ GA_ReadOnly
Definition: gdal.h:117
GDALDimension::GetIndexingVariable
virtual std::shared_ptr< GDALMDArray > GetIndexingVariable() const
Return the variable that is used to index the dimension (if there is one).
Definition: gdalmultidim.cpp:8627
GDALDataset::GetSpatialRef
virtual const OGRSpatialReference * GetSpatialRef() const
Fetch the spatial reference for this dataset.
Definition: gdaldataset.cpp:911
GIntBig
long long GIntBig
Large signed integer type (generally 64-bit integer type).
Definition: cpl_port.h:230
GDALDataset::SetGeoTransform
virtual CPLErr SetGeoTransform(double *padfTransform)
Set the affine transformation coefficients.
Definition: gdaldataset.cpp:1151
GDALMDArray::SetScale
virtual bool SetScale(double dfScale, GDALDataType eStorageType=GDT_Unknown)
Set the scale value to apply to raw values.
Definition: gdalmultidim.cpp:2440
GDALIHasAttribute::CreateAttribute
virtual std::shared_ptr< GDALAttribute > CreateAttribute(const std::string &osName, const std::vector< GUInt64 > &anDimensions, const GDALExtendedDataType &oDataType, CSLConstList papszOptions=nullptr)
Create an attribute within a GDALMDArray or GDALGroup.
Definition: gdalmultidim.cpp:254
GDALDataset::GetFileList
virtual char ** GetFileList(void)
Fetch files forming dataset.
Definition: gdaldataset.cpp:2907
GDALRasterBand::GetDefaultRAT
virtual GDALRasterAttributeTable * GetDefaultRAT()
Fetch default Raster Attribute Table.
Definition: gdalrasterband.cpp:6587
GDALRasterIOExtraArg
Structure to pass extra arguments to RasterIO() method, must be initialized with INIT_RASTERIO_EXTRA_...
Definition: gdal.h:161
GDALDataset::FlushCache
virtual void FlushCache(bool bAtClosing=false)
Flush all write cached data to disk.
Definition: gdaldataset.cpp:434
GDALMDArray::GetFilename
virtual const std::string & GetFilename() const =0
Return the filename that contains that array.
GDALRasterBand::GetScale
virtual double GetScale(int *pbSuccess=nullptr)
Fetch the raster value scale.
Definition: gdalrasterband.cpp:2858
GDALRWFlag
GDALRWFlag
Definition: gdal.h:122
GDALMDArray::CopyFrom
virtual bool CopyFrom(GDALDataset *poSrcDS, const GDALMDArray *poSrcArray, bool bStrict, GUInt64 &nCurCost, const GUInt64 nTotalCost, GDALProgressFunc pfnProgress, void *pProgressData)
Copy the content of an array into a new (generally empty) array.
Definition: gdalmultidim.cpp:3364
GDALRasterBand::SetColorInterpretation
virtual CPLErr SetColorInterpretation(GDALColorInterp eColorInterp)
Set color interpretation of a band.
Definition: gdalrasterband.cpp:2327
GDALGroup::GetDimensions
virtual std::vector< std::shared_ptr< GDALDimension > > GetDimensions(CSLConstList papszOptions=nullptr) const
Return the list of dimensions contained in this group and used by its arrays.
Definition: gdalmultidim.cpp:455
GDALMajorObject
Object with metadata.
Definition: gdal_priv.h:136
GDALPansharpenOperation
Pansharpening operation class.
Definition: gdalpansharpen.h:188
GDALDataset::SetMetadataItem
CPLErr SetMetadataItem(const char *pszName, const char *pszValue, const char *pszDomain) override
Set single metadata item.
CPLErr
CPLErr
Error category.
Definition: cpl_error.h:52
GDALAttribute
Class modeling an attribute that has a name, a value and a type, and is typically used to describe a ...
Definition: gdal_priv.h:2338
GDALDataset::SetMetadata
CPLErr SetMetadata(char **papszMetadata, const char *pszDomain) override
Set metadata.
GDALDerivedPixelFunc
CPLErr(* GDALDerivedPixelFunc)(void **papoSources, int nSources, void *pData, int nBufXSize, int nBufYSize, GDALDataType eSrcType, GDALDataType eBufType, int nPixelSpace, int nLineSpace)
Type of functions to pass to GDALAddDerivedBandPixelFunc.
Definition: gdal.h:1151
GDALRasterBand::SetCategoryNames
virtual CPLErr SetCategoryNames(char **papszNames)
Set the category names for this band.
Definition: gdalrasterband.cpp:1609
GDALRasterBand::GetHistogram
virtual CPLErr GetHistogram(double dfMin, double dfMax, int nBuckets, GUIntBig *panHistogram, int bIncludeOutOfRange, int bApproxOK, GDALProgressFunc, void *pProgressData)
Compute raster histogram.
Definition: gdalrasterband.cpp:3254
GDALGroup::GetMDArrayNames
virtual std::vector< std::string > GetMDArrayNames(CSLConstList papszOptions=nullptr) const
Return the list of multidimensional array names contained in this group.
Definition: gdalmultidim.cpp:300
GDALRasterBand::GetMaskFlags
virtual int GetMaskFlags()
Return the status flags of the mask band associated with the band.
Definition: gdalrasterband.cpp:7041
GDALDataset::GetGeoTransform
virtual CPLErr GetGeoTransform(double *padfTransform)
Fetch the affine transformation coefficients.
Definition: gdaldataset.cpp:1096
GDALGroup::OpenGroup
virtual std::shared_ptr< GDALGroup > OpenGroup(const std::string &osName, CSLConstList papszOptions=nullptr) const
Open and return a sub-group.
Definition: gdalmultidim.cpp:372
GDALRasterBand::CreateMaskBand
virtual CPLErr CreateMaskBand(int nFlagsIn)
Adds a mask band to the current band.
Definition: gdalrasterband.cpp:7122
GDALRasterBand::SetMetadata
CPLErr SetMetadata(char **papszMetadata, const char *pszDomain) override
Set metadata.
GDALRasterAttributeTable
Definition: gdal_rat.h:47
GDALMDArray::GetRawNoDataValue
virtual const void * GetRawNoDataValue() const
Return the nodata value as a "raw" value.
Definition: gdalmultidim.cpp:2209
GDALGroup::OpenMDArray
virtual std::shared_ptr< GDALMDArray > OpenMDArray(const std::string &osName, CSLConstList papszOptions=nullptr) const
Open and return a multidimensional array.
Definition: gdalmultidim.cpp:324
GDALRasterBand::SetMetadataItem
CPLErr SetMetadataItem(const char *pszName, const char *pszValue, const char *pszDomain) override
Set single metadata item.
GDALRasterBand::SetOffset
virtual CPLErr SetOffset(double dfNewOffset)
Set scaling offset.
Definition: gdalrasterband.cpp:2801
GDALRasterBandH
void * GDALRasterBandH
Opaque type used for the C bindings of the C++ GDALRasterBand class.
Definition: gdal.h:272
GDALMDArray::GetOffset
virtual double GetOffset(bool *pbHasOffset=nullptr, GDALDataType *peStorageType=nullptr) const
Get the offset value to apply to raw values.
Definition: gdalmultidim.cpp:2528
VRTCreate
VRTDatasetH VRTCreate(int, int)
Definition: vrtdataset.cpp:78
CPL_DISALLOW_COPY_ASSIGN
#define CPL_DISALLOW_COPY_ASSIGN(ClassName)
Helper to remove the copy and assignment constructors so that the compiler will not generate the defa...
Definition: cpl_port.h:930
GDALRasterBand::GetNoDataValueAsUInt64
virtual uint64_t GetNoDataValueAsUInt64(int *pbSuccess=nullptr)
Fetch the no data value for this band.
Definition: gdalrasterband.cpp:1782
GDALColorTable
A color table / palette.
Definition: gdal_priv.h:1044