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gdal_proxy.h
1 /******************************************************************************
2 * $Id$
3 *
4 * Project: GDAL Core
5 * Purpose: GDAL Core C++/Private declarations
6 * Author: Even Rouault <even dot rouault at spatialys.com>
7 *
8 ******************************************************************************
9 * Copyright (c) 2008-2014, Even Rouault <even dot rouault at spatialys.com>
10 *
11 * Permission is hereby granted, free of charge, to any person obtaining a
12 * copy of this software and associated documentation files (the "Software"),
13 * to deal in the Software without restriction, including without limitation
14 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15 * and/or sell copies of the Software, and to permit persons to whom the
16 * Software is furnished to do so, subject to the following conditions:
17 *
18 * The above copyright notice and this permission notice shall be included
19 * in all copies or substantial portions of the Software.
20 *
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
26 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
27 * DEALINGS IN THE SOFTWARE.
28 ****************************************************************************/
29
30 #ifndef GDAL_PROXY_H_INCLUDED
31 #define GDAL_PROXY_H_INCLUDED
32
33 #ifndef DOXYGEN_SKIP
34
35 #include "gdal.h"
36
37 #ifdef __cplusplus
38
39 #include "gdal_priv.h"
40 #include "cpl_hash_set.h"
41
42 /* ******************************************************************** */
43 /* GDALProxyDataset */
44 /* ******************************************************************** */
45
46 class CPL_DLL GDALProxyDataset : public GDALDataset
47 {
48 protected:
49 GDALProxyDataset() {}
50
51 virtual GDALDataset *RefUnderlyingDataset() const = 0;
52 virtual void UnrefUnderlyingDataset(GDALDataset* poUnderlyingDataset) const;
53
54 CPLErr IBuildOverviews( const char *, int, int *,
55 int, int *, GDALProgressFunc, void * ) override;
56 CPLErr IRasterIO( GDALRWFlag, int, int, int, int,
57 void *, int, int, GDALDataType,
58 int, int *, GSpacing, GSpacing, GSpacing,
59 GDALRasterIOExtraArg* psExtraArg ) override;
60
61 public:
62 char **GetMetadataDomainList() override;
63 char **GetMetadata( const char * pszDomain ) override;
64 CPLErr SetMetadata( char ** papszMetadata,
65 const char * pszDomain ) override;
66 const char *GetMetadataItem( const char * pszName,
67 const char * pszDomain ) override;
68 CPLErr SetMetadataItem( const char * pszName,
69 const char * pszValue,
70 const char * pszDomain ) override;
71
72 void FlushCache() override;
73
74 const OGRSpatialReference* GetSpatialRef() const override;
75 CPLErr SetSpatialRef(const OGRSpatialReference* poSRS) override;
76
77 CPLErr GetGeoTransform( double * ) override;
78 CPLErr SetGeoTransform( double * ) override;
79
80 void *GetInternalHandle( const char * ) override;
81 GDALDriver *GetDriver() override;
82 char **GetFileList() override;
83
84 int GetGCPCount() override;
85 const OGRSpatialReference* GetGCPSpatialRef() const override;
86 const GDAL_GCP *GetGCPs() override;
87 CPLErr SetGCPs( int nGCPCount, const GDAL_GCP *pasGCPList,
88 const OGRSpatialReference * poGCP_SRS ) override;
89
90 CPLErr AdviseRead( int nXOff, int nYOff, int nXSize, int nYSize,
91 int nBufXSize, int nBufYSize,
92 GDALDataType eDT,
93 int nBandCount, int *panBandList,
94 char **papszOptions ) override;
95
96 CPLErr CreateMaskBand( int nFlags ) override;
97
98 protected:
99 const char *_GetProjectionRef(void) override;
100 CPLErr _SetProjection( const char * ) override;
101 const char *_GetGCPProjection() override;
102 CPLErr _SetGCPs( int nGCPCount, const GDAL_GCP *pasGCPList,
103 const char *pszGCPProjection ) override;
104
105 private:
106 CPL_DISALLOW_COPY_ASSIGN(GDALProxyDataset)
107 };
108
109 /* ******************************************************************** */
110 /* GDALProxyRasterBand */
111 /* ******************************************************************** */
112
113 class CPL_DLL GDALProxyRasterBand : public GDALRasterBand
114 {
115 protected:
116 GDALProxyRasterBand() {}
117
118 virtual GDALRasterBand* RefUnderlyingRasterBand() = 0;
119 virtual void UnrefUnderlyingRasterBand(GDALRasterBand* poUnderlyingRasterBand);
120
121 CPLErr IReadBlock( int, int, void * ) override;
122 CPLErr IWriteBlock( int, int, void * ) override;
123 CPLErr IRasterIO( GDALRWFlag, int, int, int, int,
124 void *, int, int, GDALDataType,
125 GSpacing, GSpacing, GDALRasterIOExtraArg* psExtraArg ) override;
126
127 public:
128 char **GetMetadataDomainList() override;
129 char **GetMetadata( const char * pszDomain ) override;
130 CPLErr SetMetadata( char ** papszMetadata,
131 const char * pszDomain ) override;
132 const char *GetMetadataItem( const char * pszName,
133 const char * pszDomain ) override;
134 CPLErr SetMetadataItem( const char * pszName,
135 const char * pszValue,
136 const char * pszDomain ) override;
137 CPLErr FlushCache() override;
138 char **GetCategoryNames() override;
139 double GetNoDataValue( int *pbSuccess = nullptr ) override;
140 double GetMinimum( int *pbSuccess = nullptr ) override;
141 double GetMaximum(int *pbSuccess = nullptr ) override;
142 double GetOffset( int *pbSuccess = nullptr ) override;
143 double GetScale( int *pbSuccess = nullptr ) override;
144 const char *GetUnitType() override;
145 GDALColorInterp GetColorInterpretation() override;
146 GDALColorTable *GetColorTable() override;
147 CPLErr Fill(double dfRealValue, double dfImaginaryValue = 0) override;
148
149 CPLErr SetCategoryNames( char ** ) override;
150 CPLErr SetNoDataValue( double ) override;
151 CPLErr DeleteNoDataValue() override;
152 CPLErr SetColorTable( GDALColorTable * ) override;
153 CPLErr SetColorInterpretation( GDALColorInterp ) override;
154 CPLErr SetOffset( double ) override;
155 CPLErr SetScale( double ) override;
156 CPLErr SetUnitType( const char * ) override;
157
158 CPLErr GetStatistics( int bApproxOK, int bForce,
159 double *pdfMin, double *pdfMax,
160 double *pdfMean, double *padfStdDev ) override;
161 CPLErr ComputeStatistics( int bApproxOK,
162 double *pdfMin, double *pdfMax,
163 double *pdfMean, double *pdfStdDev,
164 GDALProgressFunc, void *pProgressData ) override;
165 CPLErr SetStatistics( double dfMin, double dfMax,
166 double dfMean, double dfStdDev ) override;
167 CPLErr ComputeRasterMinMax( int, double* ) override;
168
169 int HasArbitraryOverviews() override;
170 int GetOverviewCount() override;
171 GDALRasterBand *GetOverview( int ) override;
172 GDALRasterBand *GetRasterSampleOverview( GUIntBig ) override;
173 CPLErr BuildOverviews( const char *, int, int *,
174 GDALProgressFunc, void * ) override;
175
176 CPLErr AdviseRead( int nXOff, int nYOff, int nXSize, int nYSize,
177 int nBufXSize, int nBufYSize,
178 GDALDataType eDT, char **papszOptions ) override;
179
180 CPLErr GetHistogram( double dfMin, double dfMax,
181 int nBuckets, GUIntBig * panHistogram,
182 int bIncludeOutOfRange, int bApproxOK,
183 GDALProgressFunc, void *pProgressData ) override;
184
185 CPLErr GetDefaultHistogram( double *pdfMin, double *pdfMax,
186 int *pnBuckets, GUIntBig ** ppanHistogram,
187 int bForce,
188 GDALProgressFunc, void *pProgressData) override;
189 CPLErr SetDefaultHistogram( double dfMin, double dfMax,
190 int nBuckets, GUIntBig *panHistogram ) override;
191
192 GDALRasterAttributeTable *GetDefaultRAT() override;
193 CPLErr SetDefaultRAT( const GDALRasterAttributeTable * ) override;
194
195 GDALRasterBand *GetMaskBand() override;
196 int GetMaskFlags() override;
197 CPLErr CreateMaskBand( int nFlags ) override;
198
199 CPLVirtualMem *GetVirtualMemAuto( GDALRWFlag eRWFlag,
200 int *pnPixelSpace,
201 GIntBig *pnLineSpace,
202 char **papszOptions ) override;
203
204 private:
205 CPL_DISALLOW_COPY_ASSIGN(GDALProxyRasterBand)
206 };
207
208 /* ******************************************************************** */
209 /* GDALProxyPoolDataset */
210 /* ******************************************************************** */
211
212 typedef struct _GDALProxyPoolCacheEntry GDALProxyPoolCacheEntry;
213 class GDALProxyPoolRasterBand;
214
215 class CPL_DLL GDALProxyPoolDataset : public GDALProxyDataset
216 {
217 private:
218 GIntBig responsiblePID = -1;
219
220 mutable char *pszProjectionRef = nullptr;
221 mutable OGRSpatialReference* m_poSRS = nullptr;
222 mutable OGRSpatialReference* m_poGCPSRS = nullptr;
223 double adfGeoTransform[6]{0,1,0,0,0,1};
224 bool bHasSrcProjection = false;
225 bool m_bHasSrcSRS = false;
226 bool bHasSrcGeoTransform = false;
227 char *pszGCPProjection = nullptr;
228 int nGCPCount = 0;
229 GDAL_GCP *pasGCPList = nullptr;
230 CPLHashSet *metadataSet = nullptr;
231 CPLHashSet *metadataItemSet = nullptr;
232
233 mutable GDALProxyPoolCacheEntry* cacheEntry = nullptr;
234 char *m_pszOwner = nullptr;
235
236 GDALDataset *RefUnderlyingDataset(bool bForceOpen) const;
237
238 protected:
239 GDALDataset *RefUnderlyingDataset() const override;
240 void UnrefUnderlyingDataset(GDALDataset* poUnderlyingDataset) const override;
241
242 friend class GDALProxyPoolRasterBand;
243
244 public:
245 GDALProxyPoolDataset( const char* pszSourceDatasetDescription,
246 int nRasterXSize, int nRasterYSize,
247 GDALAccess eAccess = GA_ReadOnly,
248 int bShared = FALSE,
249 const char * pszProjectionRef = nullptr,
250 double * padfGeoTransform = nullptr,
251 const char* pszOwner = nullptr );
252 ~GDALProxyPoolDataset() override;
253
254 void SetOpenOptions( char** papszOpenOptions );
255
256 // If size (nBlockXSize&nBlockYSize) parameters is zero
257 // they will be loaded when RefUnderlyingRasterBand function is called.
258 // But in this case we cannot use them in other non-virtual methods before
259 // RefUnderlyingRasterBand fist call.
260 void AddSrcBandDescription( GDALDataType eDataType, int nBlockXSize,
261 int nBlockYSize );
262
263 // Used by VRT SimpleSource to add a single GDALProxyPoolRasterBand while
264 // keeping all other bands initialized to a nullptr. This is under the assumption,
265 // VRT SimpleSource will not have to access any other bands than the one added.
266 void AddSrcBand(int nBand, GDALDataType eDataType, int nBlockXSize,
267 int nBlockYSize );
268 void FlushCache() override;
269
270 const OGRSpatialReference* GetSpatialRef() const override;
271 CPLErr SetSpatialRef(const OGRSpatialReference* poSRS) override;
272
273 const char *_GetProjectionRef() override;
274 CPLErr _SetProjection( const char * ) override;
275
276 CPLErr GetGeoTransform( double * ) override;
277 CPLErr SetGeoTransform( double * ) override;
278
279 // Special behavior for the following methods : they return a pointer
280 // data type, that must be cached by the proxy, so it doesn't become invalid
281 // when the underlying object get closed.
282 char **GetMetadata( const char * pszDomain ) override;
283 const char *GetMetadataItem( const char * pszName,
284 const char * pszDomain ) override;
285
286 void *GetInternalHandle( const char * pszRequest ) override;
287
288 const char *_GetGCPProjection() override;
289 const OGRSpatialReference* GetGCPSpatialRef() const override;
290 const GDAL_GCP *GetGCPs() override;
291
292 private:
293 CPL_DISALLOW_COPY_ASSIGN(GDALProxyPoolDataset)
294 };
295
296 /* ******************************************************************** */
297 /* GDALProxyPoolRasterBand */
298 /* ******************************************************************** */
299
300 class GDALProxyPoolOverviewRasterBand;
301 class GDALProxyPoolMaskBand;
302
303 class CPL_DLL GDALProxyPoolRasterBand : public GDALProxyRasterBand
304 {
305 private:
306 CPLHashSet *metadataSet = nullptr;
307 CPLHashSet *metadataItemSet = nullptr;
308 char *pszUnitType = nullptr;
309 char **papszCategoryNames = nullptr;
310 GDALColorTable *poColorTable = nullptr;
311
312 int nSizeProxyOverviewRasterBand = 0;
313 GDALProxyPoolOverviewRasterBand **papoProxyOverviewRasterBand = nullptr;
314 GDALProxyPoolMaskBand *poProxyMaskBand = nullptr;
315
316 GDALRasterBand* RefUnderlyingRasterBand( bool bForceOpen );
317
318 protected:
319 GDALRasterBand* RefUnderlyingRasterBand() override;
320 void UnrefUnderlyingRasterBand( GDALRasterBand* poUnderlyingRasterBand )
321 override;
322
323 friend class GDALProxyPoolOverviewRasterBand;
324 friend class GDALProxyPoolMaskBand;
325
326 public:
327 GDALProxyPoolRasterBand( GDALProxyPoolDataset* poDS, int nBand,
328 GDALDataType eDataType,
329 int nBlockXSize, int nBlockYSize );
330 GDALProxyPoolRasterBand( GDALProxyPoolDataset* poDS,
331 GDALRasterBand* poUnderlyingRasterBand );
332 ~GDALProxyPoolRasterBand() override;
333
334 void AddSrcMaskBandDescription( GDALDataType eDataType, int nBlockXSize,
335 int nBlockYSize );
336
337 // Special behavior for the following methods : they return a pointer
338 // data type, that must be cached by the proxy, so it doesn't become invalid
339 // when the underlying object get closed.
340 char **GetMetadata( const char * pszDomain ) override;
341 const char *GetMetadataItem( const char * pszName,
342 const char * pszDomain ) override;
343 char **GetCategoryNames() override;
344 const char *GetUnitType() override;
345 GDALColorTable *GetColorTable() override;
346 GDALRasterBand *GetOverview( int ) override;
347 GDALRasterBand *GetRasterSampleOverview( GUIntBig nDesiredSamples ) override; // TODO
348 GDALRasterBand *GetMaskBand() override;
349
350 CPLErr FlushCache() override;
351
352 private:
353 CPL_DISALLOW_COPY_ASSIGN(GDALProxyPoolRasterBand)
354 };
355
356 /* ******************************************************************** */
357 /* GDALProxyPoolOverviewRasterBand */
358 /* ******************************************************************** */
359
360 class GDALProxyPoolOverviewRasterBand : public GDALProxyPoolRasterBand
361 {
362 private:
363 GDALProxyPoolRasterBand *poMainBand = nullptr;
364 int nOverviewBand = 0;
365
366 GDALRasterBand *poUnderlyingMainRasterBand = nullptr;
367 int nRefCountUnderlyingMainRasterBand = 0;
368
369 CPL_DISALLOW_COPY_ASSIGN(GDALProxyPoolOverviewRasterBand)
370
371 protected:
372 GDALRasterBand* RefUnderlyingRasterBand() override;
373 void UnrefUnderlyingRasterBand( GDALRasterBand* poUnderlyingRasterBand )
374 override;
375
376 public:
377 GDALProxyPoolOverviewRasterBand( GDALProxyPoolDataset* poDS,
378 GDALRasterBand* poUnderlyingOverviewBand,
379 GDALProxyPoolRasterBand* poMainBand,
380 int nOverviewBand );
381 ~GDALProxyPoolOverviewRasterBand() override;
382 };
383
384 /* ******************************************************************** */
385 /* GDALProxyPoolMaskBand */
386 /* ******************************************************************** */
387
388 class GDALProxyPoolMaskBand : public GDALProxyPoolRasterBand
389 {
390 private:
391 GDALProxyPoolRasterBand *poMainBand = nullptr;
392
393 GDALRasterBand *poUnderlyingMainRasterBand = nullptr;
394 int nRefCountUnderlyingMainRasterBand = 0;
395
396 CPL_DISALLOW_COPY_ASSIGN(GDALProxyPoolMaskBand)
397
398 protected:
399 GDALRasterBand* RefUnderlyingRasterBand() override;
400 void UnrefUnderlyingRasterBand( GDALRasterBand* poUnderlyingRasterBand )
401 override;
402
403 public:
404 GDALProxyPoolMaskBand( GDALProxyPoolDataset* poDS,
405 GDALRasterBand* poUnderlyingMaskBand,
406 GDALProxyPoolRasterBand* poMainBand );
407 GDALProxyPoolMaskBand( GDALProxyPoolDataset* poDS,
408 GDALProxyPoolRasterBand* poMainBand,
409 GDALDataType eDataType,
410 int nBlockXSize, int nBlockYSize );
411 ~GDALProxyPoolMaskBand() override;
412 };
413
414 #endif
415
416 /* ******************************************************************** */
417 /* C types and methods declarations */
418 /* ******************************************************************** */
419
420 CPL_C_START
421
422 typedef struct GDALProxyPoolDatasetHS *GDALProxyPoolDatasetH;
423
424 GDALProxyPoolDatasetH CPL_DLL GDALProxyPoolDatasetCreate(const char* pszSourceDatasetDescription,
425 int nRasterXSize, int nRasterYSize,
426 GDALAccess eAccess, int bShared,
427 const char * pszProjectionRef,
428 double * padfGeoTransform);
429
430 void CPL_DLL GDALProxyPoolDatasetDelete(GDALProxyPoolDatasetH hProxyPoolDataset);
431
432 void CPL_DLL GDALProxyPoolDatasetAddSrcBandDescription( GDALProxyPoolDatasetH hProxyPoolDataset,
433 GDALDataType eDataType,
434 int nBlockXSize, int nBlockYSize);
435
436 CPL_C_END
437
438 #endif /* #ifndef DOXYGEN_SKIP */
439
440 #endif /* GDAL_PROXY_H_INCLUDED */
GDALRasterAttributeTable
The GDALRasterAttributeTable (or RAT) class is used to encapsulate a table used to provide attribute ...
Definition: gdal_rat.h:47
GDALDataset::GetDriver
virtual GDALDriver * GetDriver(void)
Fetch the driver to which this dataset relates.
Definition: gdaldataset.cpp:1296
GDALDataset::GetGeoTransform
virtual CPLErr GetGeoTransform(double *padfTransform)
Fetch the affine transformation coefficients.
Definition: gdaldataset.cpp:1158
GDALRasterBand::GetVirtualMemAuto
virtual CPLVirtualMem * GetVirtualMemAuto(GDALRWFlag eRWFlag, int *pnPixelSpace, GIntBig *pnLineSpace, char **papszOptions)
Create a CPLVirtualMem object from a GDAL raster band object.
Definition: gdalrasterband.cpp:6640
GDALDataType
GDALDataType
Definition: gdal.h:60
GDALRasterBand::SetCategoryNames
virtual CPLErr SetCategoryNames(char **papszNames)
Set the category names for this band.
Definition: gdalrasterband.cpp:1563
GDALRasterBand::GetMaskBand
virtual GDALRasterBand * GetMaskBand()
Return the mask band associated with the band.
Definition: gdalrasterband.cpp:5954
GDALRasterBand::GetCategoryNames
virtual char ** GetCategoryNames()
Fetch the list of category names for this raster.
Definition: gdalrasterband.cpp:1515
GDALDataset::FlushCache
virtual void FlushCache(void)
Flush all write cached data to disk.
Definition: gdaldataset.cpp:418
GDALRasterBand::HasArbitraryOverviews
virtual int HasArbitraryOverviews()
Check for arbitrary overviews.
Definition: gdalrasterband.cpp:2147
CPL_C_START
#define CPL_C_START
Macro to start a block of C symbols.
Definition: cpl_port.h:337
GDALRasterBand::GetOverview
virtual GDALRasterBand * GetOverview(int)
Fetch overview raster band object.
Definition: gdalrasterband.cpp:2226
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:3469
gdal_priv.h
C++ GDAL entry points.
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:2782
GDALRasterBand::GetColorInterpretation
virtual GDALColorInterp GetColorInterpretation()
How should this band be interpreted as color?
Definition: gdalrasterband.cpp:1958
GDALRasterBand::SetDefaultRAT
virtual CPLErr SetDefaultRAT(const GDALRasterAttributeTable *poRAT)
Set default Raster Attribute Table.
Definition: gdalrasterband.cpp:5869
GDALRWFlag
GDALRWFlag
Definition: gdal.h:119
GDALRasterBand::SetStatistics
virtual CPLErr SetStatistics(double dfMin, double dfMax, double dfMean, double dfStdDev)
Set statistics on band.
Definition: gdalrasterband.cpp:5402
GDALDataset::GetInternalHandle
virtual void * GetInternalHandle(const char *pszHandleName)
Fetch a format specific internally meaningful handle.
Definition: gdaldataset.cpp:1258
GDALRasterBand::GetMaskFlags
virtual int GetMaskFlags()
Return the status flags of the mask band associated with the band.
Definition: gdalrasterband.cpp:6219
GDALRasterBand::GetDefaultRAT
virtual GDALRasterAttributeTable * GetDefaultRAT()
Fetch default Raster Attribute Table.
Definition: gdalrasterband.cpp:5821
GDALMajorObject::GetMetadata
virtual char ** GetMetadata(const char *pszDomain="")
Fetch metadata.
Definition: gdalmajorobject.cpp:249
GDALRasterBand::BuildOverviews
virtual CPLErr BuildOverviews(const char *pszResampling, int nOverviews, int *panOverviewList, GDALProgressFunc pfnProgress, void *pProgressData)
Build raster overview(s)
Definition: gdalrasterband.cpp:2384
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:2927
GDALDataset::GetGCPSpatialRef
virtual const OGRSpatialReference * GetGCPSpatialRef() const
Get output spatial reference system for GCPs.
Definition: gdaldataset.cpp:1595
cpl_hash_set.h
Hash set implementation.
GDALRasterBand::ComputeStatistics
virtual CPLErr ComputeStatistics(int bApproxOK, double *pdfMin, double *pdfMax, double *pdfMean, double *pdfStdDev, GDALProgressFunc, void *pProgressData)
Compute image statistics.
Definition: gdalrasterband.cpp:4894
GDALRasterBand::SetOffset
virtual CPLErr SetOffset(double dfNewOffset)
Set scaling offset.
Definition: gdalrasterband.cpp:2474
GDALRasterBand::SetMetadata
CPLErr SetMetadata(char **papszMetadata, const char *pszDomain) override
Set metadata.
CPLVirtualMem
struct CPLVirtualMem CPLVirtualMem
Opaque type that represents a virtual memory mapping.
Definition: cpl_virtualmem.h:62
GDALDataset::GetMetadata
void static void char ** GetMetadata(const char *pszDomain="") override
Fetch metadata.
Definition: gdaldataset.cpp:4128
GDALRasterBand::SetMetadataItem
CPLErr SetMetadataItem(const char *pszName, const char *pszValue, const char *pszDomain) override
Set single metadata item.
GDALRasterBand::IReadBlock
virtual CPLErr IReadBlock(int nBlockXOff, int nBlockYOff, void *pData)=0
Read a block of data.
GDALRasterBand::FlushCache
virtual CPLErr FlushCache()
Flush raster data cache.
Definition: gdalrasterband.cpp:1015
GSpacing
GIntBig GSpacing
Type to express pixel, line or band spacing.
Definition: gdal.h:276
GDALRasterBand::SetDefaultHistogram
virtual CPLErr SetDefaultHistogram(double dfMin, double dfMax, int nBuckets, GUIntBig *panHistogram)
Set default histogram.
Definition: gdalrasterband.cpp:5722
GDALRasterBand::GetScale
virtual double GetScale(int *pbSuccess=nullptr)
Fetch the raster value scale.
Definition: gdalrasterband.cpp:2531
GDALMajorObject::GetMetadataItem
virtual const char * GetMetadataItem(const char *pszName, const char *pszDomain="")
Fetch single metadata item.
Definition: gdalmajorobject.cpp:344
GDALRasterBand::AdviseRead
virtual CPLErr AdviseRead(int nXOff, int nYOff, int nXSize, int nYSize, int nBufXSize, int nBufYSize, GDALDataType eBufType, char **papszOptions)
Advise driver of upcoming read requests.
Definition: gdalrasterband.cpp:3684
GDALDataset::GetGCPs
virtual const GDAL_GCP * GetGCPs()
Fetch GCPs.
Definition: gdaldataset.cpp:1678
GDALDataset::SetGCPs
virtual CPLErr SetGCPs(int nGCPCount, const GDAL_GCP *pasGCPList, const OGRSpatialReference *poGCP_SRS)
Assign GCPs.
Definition: gdaldataset.cpp:1783
gdal.h
Public (C callable) GDAL entry points.
GDALRasterBand::DeleteNoDataValue
virtual CPLErr DeleteNoDataValue()
Remove the no data value for this band.
Definition: gdalrasterband.cpp:1728
GDALDataset::SetSpatialRef
virtual CPLErr SetSpatialRef(const OGRSpatialReference *poSRS)
Set the spatial reference system for this dataset.
Definition: gdaldataset.cpp:1040
GDALDataset::SetGeoTransform
virtual CPLErr SetGeoTransform(double *padfTransform)
Set the affine transformation coefficients.
Definition: gdaldataset.cpp:1213
GDALRasterBand::GetNoDataValue
virtual double GetNoDataValue(int *pbSuccess=nullptr)
Fetch the no data value for this band.
Definition: gdalrasterband.cpp:1615
GDALDataset::GetGCPCount
virtual int GetGCPCount()
Get number of GCPs.
Definition: gdaldataset.cpp:1500
GDALRasterBand::ComputeRasterMinMax
virtual CPLErr ComputeRasterMinMax(int, double *)
Compute the min/max values for a band.
Definition: gdalrasterband.cpp:5469
GDALRasterBand::SetColorInterpretation
virtual CPLErr SetColorInterpretation(GDALColorInterp eColorInterp)
Set color interpretation of a band.
Definition: gdalrasterband.cpp:2003
GDALRasterIOExtraArg
Structure to pass extra arguments to RasterIO() method.
Definition: gdal.h:150
GDALRasterBand::GetUnitType
virtual const char * GetUnitType()
Return raster unit type.
Definition: gdalrasterband.cpp:2627
GDALRasterBand::SetColorTable
virtual CPLErr SetColorTable(GDALColorTable *poCT)
Set the raster color table.
Definition: gdalrasterband.cpp:2099
GDALRasterBand::GetMinimum
virtual double GetMinimum(int *pbSuccess=nullptr)
Fetch the minimum value for this band.
Definition: gdalrasterband.cpp:1871
GDALRasterBand::GetColorTable
virtual GDALColorTable * GetColorTable()
Fetch the color table associated with band.
Definition: gdalrasterband.cpp:2050
GDALDataset::CreateMaskBand
virtual CPLErr CreateMaskBand(int nFlagsIn)
Adds a mask band to the dataset.
Definition: gdaldataset.cpp:3054
GUIntBig
unsigned long long GUIntBig
Large unsigned integer type (generally 64-bit unsigned integer type).
Definition: cpl_port.h:251
GDALDataset::GetFileList
virtual char ** GetFileList(void)
Fetch files forming dataset.
Definition: gdaldataset.cpp:2943
OGRSpatialReference
This class represents an OpenGIS Spatial Reference System, and contains methods for converting betwee...
Definition: ogr_spatialref.h:157
GDALRasterBand::SetScale
virtual CPLErr SetScale(double dfNewScale)
Set scaling ratio.
Definition: gdalrasterband.cpp:2580
GDALRasterBand::IWriteBlock
virtual CPLErr IWriteBlock(int nBlockXOff, int nBlockYOff, void *pData)
Write a block of data.
Definition: gdalrasterband.cpp:610
GDALRasterBand::GetOffset
virtual double GetOffset(int *pbSuccess=nullptr)
Fetch the raster value offset.
Definition: gdalrasterband.cpp:2425
GDALRasterBand::GetOverviewCount
virtual int GetOverviewCount()
Return the number of overview layers available.
Definition: gdalrasterband.cpp:2184
GDALDataset::SetMetadataItem
CPLErr SetMetadataItem(const char *pszName, const char *pszValue, const char *pszDomain) override
Set single metadata item.
GDALRasterBand::SetUnitType
virtual CPLErr SetUnitType(const char *pszNewValue)
Set unit type.
Definition: gdalrasterband.cpp:2675
GDALRasterBand
A single raster band (or channel).
Definition: gdal_priv.h:1111
GDALAccess
GDALAccess
Definition: gdal.h:113
GDALRasterBand::CreateMaskBand
virtual CPLErr CreateMaskBand(int nFlagsIn)
Adds a mask band to the current band.
Definition: gdalrasterband.cpp:6300
GDALDataset
A set of associated raster bands, usually from one file.
Definition: gdal_priv.h:339
CPL_C_END
#define CPL_C_END
Macro to end a block of C symbols.
Definition: cpl_port.h:339
GIntBig
long long GIntBig
Large signed integer type (generally 64-bit integer type).
Definition: cpl_port.h:248
GDALDataset::GetSpatialRef
virtual const OGRSpatialReference * GetSpatialRef() const
Fetch the spatial reference for this dataset.
Definition: gdaldataset.cpp:909
GDALRasterBand::IRasterIO
virtual CPLErr IRasterIO(GDALRWFlag, int, int, int, int, void *, int, int, GDALDataType, GSpacing, GSpacing, GDALRasterIOExtraArg *psExtraArg)
Read/write a region of image data for this band.
Definition: rasterio.cpp:68
GDALRasterBand::GetMaximum
virtual double GetMaximum(int *pbSuccess=nullptr)
Fetch the maximum value for this band.
Definition: gdalrasterband.cpp:1778
GDALDataset::SetMetadata
CPLErr SetMetadata(char **papszMetadata, const char *pszDomain) override
Set metadata.
GDALRasterBand::GetRasterSampleOverview
virtual GDALRasterBand * GetRasterSampleOverview(GUIntBig)
Fetch best sampling overview.
Definition: gdalrasterband.cpp:2276
GDALDataset::GetMetadataDomainList
char ** GetMetadataDomainList() override
Fetch list of metadata domains.
Definition: gdaldataset.cpp:4229
GDALColorInterp
GDALColorInterp
Definition: gdal.h:193
GDALRasterBand::SetNoDataValue
virtual CPLErr SetNoDataValue(double dfNoData)
Set the no data value for this band.
Definition: gdalrasterband.cpp:1674
CPLHashSet
struct _CPLHashSet CPLHashSet
Opaque type for a hash set.
Definition: cpl_hash_set.h:52
GDALRasterBand::GetStatistics
virtual CPLErr GetStatistics(int bApproxOK, int bForce, double *pdfMin, double *pdfMax, double *pdfMean, double *padfStdDev)
Fetch image statistics.
Definition: gdalrasterband.cpp:3764
GA_ReadOnly
Definition: gdal.h:114
GDALDriver
Format specific driver.
Definition: gdal_priv.h:1467
GDALColorTable
A color table / palette.
Definition: gdal_priv.h:1005
GDALMajorObject::GetMetadataDomainList
virtual char ** GetMetadataDomainList()
Fetch list of metadata domains.
Definition: gdalmajorobject.cpp:161
GDALRasterBand::Fill
virtual CPLErr Fill(double dfRealValue, double dfImaginaryValue=0)
Fill this band with a constant value.
Definition: gdalrasterband.cpp:1369
GDAL_GCP
Ground Control Point.
Definition: gdal.h:668
CPLErr
CPLErr
Error category.
Definition: cpl_error.h:52
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:1007