Line data Source code
1 : /******************************************************************************
2 : *
3 : * Project: GeoTIFF Driver
4 : * Purpose: GDAL GeoTIFF support.
5 : * Author: Frank Warmerdam, warmerdam@pobox.com
6 : *
7 : ******************************************************************************
8 : * Copyright (c) 1998, 2002, Frank Warmerdam <warmerdam@pobox.com>
9 : * Copyright (c) 2007-2015, Even Rouault <even dot rouault at spatialys dot com>
10 : *
11 : * SPDX-License-Identifier: MIT
12 : ****************************************************************************/
13 :
14 : #include "gtiffdataset.h"
15 : #include "gtiffrasterband.h"
16 : #include "gtiffjpegoverviewds.h"
17 :
18 : #include <cassert>
19 :
20 : #include <algorithm>
21 : #include <limits>
22 : #include <memory>
23 : #include <set>
24 : #include <string>
25 : #include <tuple>
26 : #include <utility>
27 :
28 : #include "cpl_error.h"
29 : #include "cpl_vsi.h"
30 : #include "cpl_vsi_virtual.h"
31 : #include "cpl_worker_thread_pool.h"
32 : #include "ogr_proj_p.h" // OSRGetProjTLSContext()
33 : #include "tif_jxl.h"
34 : #include "tifvsi.h"
35 : #include "xtiffio.h"
36 :
37 : static const GTIFFTag asTIFFTags[] = {
38 : {"TIFFTAG_DOCUMENTNAME", TIFFTAG_DOCUMENTNAME, GTIFFTAGTYPE_STRING},
39 : {"TIFFTAG_IMAGEDESCRIPTION", TIFFTAG_IMAGEDESCRIPTION, GTIFFTAGTYPE_STRING},
40 : {"TIFFTAG_SOFTWARE", TIFFTAG_SOFTWARE, GTIFFTAGTYPE_STRING},
41 : {"TIFFTAG_DATETIME", TIFFTAG_DATETIME, GTIFFTAGTYPE_STRING},
42 : {"TIFFTAG_ARTIST", TIFFTAG_ARTIST, GTIFFTAGTYPE_STRING},
43 : {"TIFFTAG_HOSTCOMPUTER", TIFFTAG_HOSTCOMPUTER, GTIFFTAGTYPE_STRING},
44 : {"TIFFTAG_COPYRIGHT", TIFFTAG_COPYRIGHT, GTIFFTAGTYPE_STRING},
45 : {"TIFFTAG_XRESOLUTION", TIFFTAG_XRESOLUTION, GTIFFTAGTYPE_FLOAT},
46 : {"TIFFTAG_YRESOLUTION", TIFFTAG_YRESOLUTION, GTIFFTAGTYPE_FLOAT},
47 : // Dealt as special case.
48 : {"TIFFTAG_RESOLUTIONUNIT", TIFFTAG_RESOLUTIONUNIT, GTIFFTAGTYPE_SHORT},
49 : {"TIFFTAG_MINSAMPLEVALUE", TIFFTAG_MINSAMPLEVALUE, GTIFFTAGTYPE_SHORT},
50 : {"TIFFTAG_MAXSAMPLEVALUE", TIFFTAG_MAXSAMPLEVALUE, GTIFFTAGTYPE_SHORT},
51 :
52 : // GeoTIFF DGIWG tags
53 : {"GEO_METADATA", TIFFTAG_GEO_METADATA, GTIFFTAGTYPE_BYTE_STRING},
54 : {"TIFF_RSID", TIFFTAG_TIFF_RSID, GTIFFTAGTYPE_STRING},
55 : {nullptr, 0, GTIFFTAGTYPE_STRING},
56 : };
57 :
58 : /************************************************************************/
59 : /* GetTIFFTags() */
60 : /************************************************************************/
61 :
62 25811 : const GTIFFTag *GTiffDataset::GetTIFFTags()
63 : {
64 25811 : return asTIFFTags;
65 : }
66 :
67 : /************************************************************************/
68 : /* GTiffDataset() */
69 : /************************************************************************/
70 :
71 26959 : GTiffDataset::GTiffDataset()
72 : : m_bStreamingIn(false), m_bStreamingOut(false), m_bScanDeferred(true),
73 : m_bSingleIFDOpened(false), m_bLoadedBlockDirty(false),
74 : m_bWriteError(false), m_bLookedForProjection(false),
75 : m_bLookedForMDAreaOrPoint(false), m_bGeoTransformValid(false),
76 : m_bCrystalized(true), m_bGeoTIFFInfoChanged(false),
77 : m_bForceUnsetGTOrGCPs(false), m_bForceUnsetProjection(false),
78 : m_bNoDataChanged(false), m_bNoDataSet(false), m_bNoDataSetAsInt64(false),
79 : m_bNoDataSetAsUInt64(false), m_bMetadataChanged(false),
80 : m_bColorProfileMetadataChanged(false), m_bForceUnsetRPC(false),
81 : m_bNeedsRewrite(false), m_bLoadingOtherBands(false), m_bIsOverview(false),
82 : m_bWriteEmptyTiles(true), m_bFillEmptyTilesAtClosing(false),
83 : m_bTreatAsSplit(false), m_bTreatAsSplitBitmap(false), m_bClipWarn(false),
84 : m_bIMDRPCMetadataLoaded(false), m_bEXIFMetadataLoaded(false),
85 : m_bICCMetadataLoaded(false),
86 : m_bHasWarnedDisableAggressiveBandCaching(false),
87 : m_bDontReloadFirstBlock(false), m_bWebPLossless(false),
88 : m_bPromoteTo8Bits(false),
89 : m_bDebugDontWriteBlocks(
90 26990 : CPLTestBool(CPLGetConfigOption("GTIFF_DONT_WRITE_BLOCKS", "NO"))),
91 : m_bIsFinalized(false),
92 : m_bIgnoreReadErrors(
93 26986 : CPLTestBool(CPLGetConfigOption("GTIFF_IGNORE_READ_ERRORS", "NO"))),
94 26989 : m_bDirectIO(CPLTestBool(CPLGetConfigOption("GTIFF_DIRECT_IO", "NO"))),
95 : m_bReadGeoTransform(false), m_bLoadPam(false),
96 : m_bHasGotSiblingFiles(false),
97 : m_bHasIdentifiedAuthorizedGeoreferencingSources(false),
98 : m_bLayoutIFDSBeforeData(false), m_bBlockOrderRowMajor(false),
99 : m_bLeaderSizeAsUInt4(false), m_bTrailerRepeatedLast4BytesRepeated(false),
100 : m_bMaskInterleavedWithImagery(false), m_bKnownIncompatibleEdition(false),
101 : m_bWriteKnownIncompatibleEdition(false), m_bHasUsedReadEncodedAPI(false),
102 80932 : m_bWriteCOGLayout(false), m_bTileInterleave(false)
103 : {
104 : // CPLDebug("GDAL", "sizeof(GTiffDataset) = %d bytes", static_cast<int>(
105 : // sizeof(GTiffDataset)));
106 :
107 : const char *pszVirtualMemIO =
108 26988 : CPLGetConfigOption("GTIFF_VIRTUAL_MEM_IO", "NO");
109 26989 : if (EQUAL(pszVirtualMemIO, "IF_ENOUGH_RAM"))
110 0 : m_eVirtualMemIOUsage = VirtualMemIOEnum::IF_ENOUGH_RAM;
111 26989 : else if (CPLTestBool(pszVirtualMemIO))
112 41 : m_eVirtualMemIOUsage = VirtualMemIOEnum::YES;
113 :
114 26974 : m_oSRS.SetAxisMappingStrategy(OAMS_TRADITIONAL_GIS_ORDER);
115 26910 : }
116 :
117 : /************************************************************************/
118 : /* ~GTiffDataset() */
119 : /************************************************************************/
120 :
121 53973 : GTiffDataset::~GTiffDataset()
122 :
123 : {
124 26987 : GTiffDataset::Close();
125 53970 : }
126 :
127 : /************************************************************************/
128 : /* Close() */
129 : /************************************************************************/
130 :
131 47895 : CPLErr GTiffDataset::Close()
132 : {
133 47895 : if (nOpenFlags != OPEN_FLAGS_CLOSED)
134 : {
135 26988 : auto [eErr, bDroppedRef] = Finalize();
136 :
137 26985 : if (m_pszTmpFilename)
138 : {
139 4 : VSIUnlink(m_pszTmpFilename);
140 4 : CPLFree(m_pszTmpFilename);
141 : }
142 :
143 26985 : if (GDALPamDataset::Close() != CE_None)
144 0 : eErr = CE_Failure;
145 26985 : return eErr;
146 : }
147 20907 : return CE_None;
148 : }
149 :
150 : /************************************************************************/
151 : /* Finalize() */
152 : /************************************************************************/
153 :
154 : // Return a tuple (CPLErr, bool) to indicate respectively if an I/O error has
155 : // occurred and if a reference to an auxiliary dataset has been dropped.
156 27069 : std::tuple<CPLErr, bool> GTiffDataset::Finalize()
157 : {
158 27069 : bool bDroppedRef = false;
159 27069 : if (m_bIsFinalized)
160 162 : return std::tuple(CE_None, bDroppedRef);
161 :
162 26988 : CPLErr eErr = CE_None;
163 26988 : Crystalize();
164 :
165 26987 : if (m_bColorProfileMetadataChanged)
166 : {
167 2 : SaveICCProfile(this, nullptr, nullptr, 0);
168 2 : m_bColorProfileMetadataChanged = false;
169 : }
170 :
171 : /* -------------------------------------------------------------------- */
172 : /* Handle forcing xml:ESRI data to be written to PAM. */
173 : /* -------------------------------------------------------------------- */
174 26987 : if (CPLTestBool(CPLGetConfigOption("ESRI_XML_PAM", "NO")))
175 : {
176 7 : char **papszESRIMD = GTiffDataset::GetMetadata("xml:ESRI");
177 7 : if (papszESRIMD)
178 : {
179 5 : GDALPamDataset::SetMetadata(papszESRIMD, "xml:ESRI");
180 : }
181 : }
182 :
183 26988 : if (m_psVirtualMemIOMapping)
184 11 : CPLVirtualMemFree(m_psVirtualMemIOMapping);
185 26988 : m_psVirtualMemIOMapping = nullptr;
186 :
187 : /* -------------------------------------------------------------------- */
188 : /* Fill in missing blocks with empty data. */
189 : /* -------------------------------------------------------------------- */
190 26988 : if (m_bFillEmptyTilesAtClosing)
191 : {
192 : /* --------------------------------------------------------------------
193 : */
194 : /* Ensure any blocks write cached by GDAL gets pushed through libtiff.
195 : */
196 : /* --------------------------------------------------------------------
197 : */
198 5381 : if (FlushCacheInternal(true, /* at closing */
199 5381 : false /* do not call FlushDirectory */) !=
200 : CE_None)
201 : {
202 0 : eErr = CE_Failure;
203 : }
204 :
205 5381 : if (FillEmptyTiles() != CE_None)
206 : {
207 9 : eErr = CE_Failure;
208 : }
209 5381 : m_bFillEmptyTilesAtClosing = false;
210 : }
211 :
212 : /* -------------------------------------------------------------------- */
213 : /* Force a complete flush, including either rewriting(moving) */
214 : /* of writing in place the current directory. */
215 : /* -------------------------------------------------------------------- */
216 26988 : if (FlushCacheInternal(true /* at closing */, true) != CE_None)
217 : {
218 7 : eErr = CE_Failure;
219 : }
220 :
221 : // Destroy compression queue
222 26985 : if (m_poCompressQueue)
223 : {
224 57 : m_poCompressQueue->WaitCompletion();
225 :
226 276 : for (int i = 0; i < static_cast<int>(m_asCompressionJobs.size()); ++i)
227 : {
228 219 : CPLFree(m_asCompressionJobs[i].pabyBuffer);
229 219 : if (m_asCompressionJobs[i].pszTmpFilename)
230 : {
231 219 : VSIUnlink(m_asCompressionJobs[i].pszTmpFilename);
232 219 : CPLFree(m_asCompressionJobs[i].pszTmpFilename);
233 : }
234 : }
235 57 : m_poCompressQueue.reset();
236 : }
237 :
238 : /* -------------------------------------------------------------------- */
239 : /* If there is still changed metadata, then presumably we want */
240 : /* to push it into PAM. */
241 : /* -------------------------------------------------------------------- */
242 26985 : if (m_bMetadataChanged)
243 : {
244 6 : PushMetadataToPam();
245 6 : m_bMetadataChanged = false;
246 6 : GDALPamDataset::FlushCache(false);
247 : }
248 :
249 : /* -------------------------------------------------------------------- */
250 : /* Cleanup overviews. */
251 : /* -------------------------------------------------------------------- */
252 26985 : if (!m_poBaseDS)
253 : {
254 : // Nullify m_nOverviewCount before deleting overviews, otherwise
255 : // GTiffDataset::FlushDirectory() might try to access an overview
256 : // that is being deleted (#5580)
257 25248 : const int nOldOverviewCount = m_nOverviewCount;
258 25248 : m_nOverviewCount = 0;
259 26631 : for (int i = 0; i < nOldOverviewCount; ++i)
260 : {
261 1384 : delete m_papoOverviewDS[i];
262 1383 : bDroppedRef = true;
263 : }
264 :
265 25307 : for (int i = 0; i < m_nJPEGOverviewCountOri; ++i)
266 : {
267 60 : delete m_papoJPEGOverviewDS[i];
268 60 : bDroppedRef = true;
269 : }
270 25247 : m_nJPEGOverviewCount = 0;
271 25247 : m_nJPEGOverviewCountOri = 0;
272 25247 : CPLFree(m_papoJPEGOverviewDS);
273 25246 : m_papoJPEGOverviewDS = nullptr;
274 : }
275 :
276 : // If we are a mask dataset, we can have overviews, but we don't
277 : // own them. We can only free the array, not the overviews themselves.
278 26983 : CPLFree(m_papoOverviewDS);
279 26985 : m_papoOverviewDS = nullptr;
280 :
281 : // m_poMaskDS is owned by the main image and the overviews
282 : // so because of the latter case, we can delete it even if
283 : // we are not the base image.
284 26985 : if (m_poMaskDS)
285 : {
286 : // Nullify m_nOverviewCount before deleting overviews, otherwise
287 : // GTiffDataset::FlushDirectory() might try to access it while being
288 : // deleted. (#5580)
289 352 : auto poMaskDS = m_poMaskDS;
290 352 : m_poMaskDS = nullptr;
291 352 : delete poMaskDS;
292 352 : bDroppedRef = true;
293 : }
294 :
295 26985 : m_poColorTable.reset();
296 :
297 26982 : if (m_hTIFF)
298 : {
299 26981 : XTIFFClose(m_hTIFF);
300 26987 : m_hTIFF = nullptr;
301 : }
302 :
303 26988 : if (!m_poBaseDS)
304 : {
305 25248 : if (m_fpL != nullptr)
306 : {
307 25248 : if (m_bWriteKnownIncompatibleEdition)
308 : {
309 : GByte abyHeader[4096];
310 9 : VSIFSeekL(m_fpL, 0, SEEK_SET);
311 9 : VSIFReadL(abyHeader, 1, sizeof(abyHeader), m_fpL);
312 9 : const char *szKeyToLook =
313 : "KNOWN_INCOMPATIBLE_EDITION=NO\n "; // trailing space
314 : // intended
315 1449 : for (size_t i = 0; i < sizeof(abyHeader) - strlen(szKeyToLook);
316 : i++)
317 : {
318 1449 : if (memcmp(abyHeader + i, szKeyToLook,
319 : strlen(szKeyToLook)) == 0)
320 : {
321 9 : const char *szNewKey =
322 : "KNOWN_INCOMPATIBLE_EDITION=YES\n";
323 9 : CPLAssert(strlen(szKeyToLook) == strlen(szNewKey));
324 9 : memcpy(abyHeader + i, szNewKey, strlen(szNewKey));
325 9 : VSIFSeekL(m_fpL, 0, SEEK_SET);
326 9 : VSIFWriteL(abyHeader, 1, sizeof(abyHeader), m_fpL);
327 9 : break;
328 : }
329 : }
330 : }
331 25248 : if (VSIFCloseL(m_fpL) != 0)
332 : {
333 0 : eErr = CE_Failure;
334 0 : ReportError(CE_Failure, CPLE_FileIO, "I/O error");
335 : }
336 25248 : m_fpL = nullptr;
337 : }
338 : }
339 :
340 26988 : if (m_fpToWrite != nullptr)
341 : {
342 7 : if (VSIFCloseL(m_fpToWrite) != 0)
343 : {
344 0 : eErr = CE_Failure;
345 0 : ReportError(CE_Failure, CPLE_FileIO, "I/O error");
346 : }
347 7 : m_fpToWrite = nullptr;
348 : }
349 :
350 26988 : m_aoGCPs.clear();
351 :
352 26988 : CSLDestroy(m_papszCreationOptions);
353 26988 : m_papszCreationOptions = nullptr;
354 :
355 26988 : CPLFree(m_pabyTempWriteBuffer);
356 26987 : m_pabyTempWriteBuffer = nullptr;
357 :
358 26987 : m_bIMDRPCMetadataLoaded = false;
359 26987 : CSLDestroy(m_papszMetadataFiles);
360 26986 : m_papszMetadataFiles = nullptr;
361 :
362 26986 : VSIFree(m_pTempBufferForCommonDirectIO);
363 26988 : m_pTempBufferForCommonDirectIO = nullptr;
364 :
365 26988 : CPLFree(m_panMaskOffsetLsb);
366 26987 : m_panMaskOffsetLsb = nullptr;
367 :
368 26987 : CPLFree(m_pszVertUnit);
369 26988 : m_pszVertUnit = nullptr;
370 :
371 26988 : CPLFree(m_pszFilename);
372 26988 : m_pszFilename = nullptr;
373 :
374 26988 : CPLFree(m_pszGeorefFilename);
375 26988 : m_pszGeorefFilename = nullptr;
376 :
377 26988 : CPLFree(m_pszXMLFilename);
378 26988 : m_pszXMLFilename = nullptr;
379 :
380 26988 : m_bIsFinalized = true;
381 :
382 26988 : return std::tuple(eErr, bDroppedRef);
383 : }
384 :
385 : /************************************************************************/
386 : /* CloseDependentDatasets() */
387 : /************************************************************************/
388 :
389 81 : int GTiffDataset::CloseDependentDatasets()
390 : {
391 81 : if (m_poBaseDS)
392 0 : return FALSE;
393 :
394 81 : int bHasDroppedRef = GDALPamDataset::CloseDependentDatasets();
395 :
396 : // We ignore eErr as it is not relevant for CloseDependentDatasets(),
397 : // which is called in a "garbage collection" context.
398 81 : auto [eErr, bHasDroppedRefInFinalize] = Finalize();
399 81 : if (bHasDroppedRefInFinalize)
400 1 : bHasDroppedRef = true;
401 :
402 81 : return bHasDroppedRef;
403 : }
404 :
405 : /************************************************************************/
406 : /* IsWholeBlock() */
407 : /************************************************************************/
408 :
409 27 : bool GTiffDataset::IsWholeBlock(int nXOff, int nYOff, int nXSize,
410 : int nYSize) const
411 : {
412 27 : if ((nXOff % m_nBlockXSize) != 0 || (nYOff % m_nBlockYSize) != 0)
413 : {
414 0 : return false;
415 : }
416 27 : if (TIFFIsTiled(m_hTIFF))
417 : {
418 3 : return nXSize == m_nBlockXSize && nYSize == m_nBlockYSize;
419 : }
420 : else
421 : {
422 46 : return nXSize == m_nBlockXSize &&
423 46 : (nYSize == m_nBlockYSize || nYOff + nYSize == nRasterYSize);
424 : }
425 : }
426 :
427 : /************************************************************************/
428 : /* IRasterIO() */
429 : /************************************************************************/
430 :
431 434898 : CPLErr GTiffDataset::IRasterIO(GDALRWFlag eRWFlag, int nXOff, int nYOff,
432 : int nXSize, int nYSize, void *pData,
433 : int nBufXSize, int nBufYSize,
434 : GDALDataType eBufType, int nBandCount,
435 : BANDMAP_TYPE panBandMap, GSpacing nPixelSpace,
436 : GSpacing nLineSpace, GSpacing nBandSpace,
437 : GDALRasterIOExtraArg *psExtraArg)
438 :
439 : {
440 : // Try to pass the request to the most appropriate overview dataset.
441 434898 : if (nBufXSize < nXSize && nBufYSize < nYSize)
442 : {
443 157851 : int bTried = FALSE;
444 157851 : if (psExtraArg->eResampleAlg == GRIORA_NearestNeighbour)
445 157699 : ++m_nJPEGOverviewVisibilityCounter;
446 157851 : const CPLErr eErr = TryOverviewRasterIO(
447 : eRWFlag, nXOff, nYOff, nXSize, nYSize, pData, nBufXSize, nBufYSize,
448 : eBufType, nBandCount, panBandMap, nPixelSpace, nLineSpace,
449 : nBandSpace, psExtraArg, &bTried);
450 157851 : if (psExtraArg->eResampleAlg == GRIORA_NearestNeighbour)
451 157699 : --m_nJPEGOverviewVisibilityCounter;
452 157851 : if (bTried)
453 22 : return eErr;
454 : }
455 :
456 434876 : if (m_eVirtualMemIOUsage != VirtualMemIOEnum::NO)
457 : {
458 : const int nErr =
459 649 : VirtualMemIO(eRWFlag, nXOff, nYOff, nXSize, nYSize, pData,
460 : nBufXSize, nBufYSize, eBufType, nBandCount, panBandMap,
461 : nPixelSpace, nLineSpace, nBandSpace, psExtraArg);
462 649 : if (nErr >= 0)
463 608 : return static_cast<CPLErr>(nErr);
464 : }
465 434268 : if (m_bDirectIO)
466 : {
467 : const int nErr =
468 471 : DirectIO(eRWFlag, nXOff, nYOff, nXSize, nYSize, pData, nBufXSize,
469 : nBufYSize, eBufType, nBandCount, panBandMap, nPixelSpace,
470 : nLineSpace, nBandSpace, psExtraArg);
471 471 : if (nErr >= 0)
472 414 : return static_cast<CPLErr>(nErr);
473 : }
474 :
475 433854 : bool bCanUseMultiThreadedRead = false;
476 433854 : if (m_nDisableMultiThreadedRead == 0 && m_poThreadPool &&
477 867853 : eRWFlag == GF_Read && nBufXSize == nXSize && nBufYSize == nYSize &&
478 145 : IsMultiThreadedReadCompatible())
479 : {
480 145 : const int nBlockX1 = nXOff / m_nBlockXSize;
481 145 : const int nBlockY1 = nYOff / m_nBlockYSize;
482 145 : const int nBlockX2 = (nXOff + nXSize - 1) / m_nBlockXSize;
483 145 : const int nBlockY2 = (nYOff + nYSize - 1) / m_nBlockYSize;
484 145 : const int nXBlocks = nBlockX2 - nBlockX1 + 1;
485 145 : const int nYBlocks = nBlockY2 - nBlockY1 + 1;
486 145 : const size_t nBlocks =
487 145 : static_cast<size_t>(nXBlocks) * nYBlocks *
488 145 : (m_nPlanarConfig == PLANARCONFIG_CONTIG ? 1 : nBandCount);
489 145 : if (nBlocks > 1)
490 : {
491 142 : bCanUseMultiThreadedRead = true;
492 : }
493 : }
494 :
495 433854 : void *pBufferedData = nullptr;
496 433854 : const auto poFirstBand = cpl::down_cast<GTiffRasterBand *>(papoBands[0]);
497 433853 : const auto eDataType = poFirstBand->GetRasterDataType();
498 :
499 37878 : if (eAccess == GA_ReadOnly && eRWFlag == GF_Read &&
500 471749 : HasOptimizedReadMultiRange() &&
501 17 : !(bCanUseMultiThreadedRead &&
502 3 : VSI_TIFFGetVSILFile(TIFFClientdata(m_hTIFF))->HasPRead()))
503 : {
504 14 : if (nBands == 1 || m_nPlanarConfig == PLANARCONFIG_CONTIG)
505 : {
506 12 : const int nBandOne = 1;
507 : pBufferedData =
508 12 : CacheMultiRange(nXOff, nYOff, nXSize, nYSize, nBufXSize,
509 12 : nBufYSize, &nBandOne, 1, psExtraArg);
510 : }
511 : else
512 : {
513 : pBufferedData =
514 2 : CacheMultiRange(nXOff, nYOff, nXSize, nYSize, nBufXSize,
515 : nBufYSize, panBandMap, nBandCount, psExtraArg);
516 : }
517 : }
518 433840 : else if (bCanUseMultiThreadedRead)
519 : {
520 142 : return MultiThreadedRead(nXOff, nYOff, nXSize, nYSize, pData, eBufType,
521 : nBandCount, panBandMap, nPixelSpace,
522 142 : nLineSpace, nBandSpace);
523 : }
524 :
525 : // Write optimization when writing whole blocks, by-passing the block cache.
526 : // We require the block cache to be non instantiated to simplify things
527 : // (otherwise we might need to evict corresponding existing blocks from the
528 : // block cache).
529 202668 : else if (eRWFlag == GF_Write && nBands > 1 &&
530 28753 : m_nPlanarConfig == PLANARCONFIG_CONTIG &&
531 : // Could be extended to "odd bit" case, but more work
532 28273 : m_nBitsPerSample == GDALGetDataTypeSize(eDataType) &&
533 28262 : nXSize == nBufXSize && nYSize == nBufYSize &&
534 28260 : nBandCount == nBands && !m_bLoadedBlockDirty &&
535 28238 : (nXOff % m_nBlockXSize) == 0 && (nYOff % m_nBlockYSize) == 0 &&
536 2497 : (nXOff + nXSize == nRasterXSize ||
537 636406 : (nXSize % m_nBlockXSize) == 0) &&
538 2494 : (nYOff + nYSize == nRasterYSize || (nYSize % m_nBlockYSize) == 0))
539 : {
540 2372 : bool bOptimOK = true;
541 2372 : bool bOrderedBands = true;
542 9818 : for (int i = 0; i < nBands; ++i)
543 : {
544 7455 : if (panBandMap[i] != i + 1)
545 : {
546 14 : bOrderedBands = false;
547 : }
548 14910 : if (cpl::down_cast<GTiffRasterBand *>(papoBands[panBandMap[i] - 1])
549 7455 : ->HasBlockCache())
550 : {
551 9 : bOptimOK = false;
552 9 : break;
553 : }
554 : }
555 2372 : if (bOptimOK)
556 : {
557 2363 : Crystalize();
558 :
559 2363 : if (m_bDebugDontWriteBlocks)
560 0 : return CE_None;
561 :
562 2363 : const int nDTSize = GDALGetDataTypeSizeBytes(eDataType);
563 2363 : if (bOrderedBands && nXSize == m_nBlockXSize &&
564 2142 : nYSize == m_nBlockYSize && eBufType == eDataType &&
565 1178 : nBandSpace == nDTSize &&
566 23 : nPixelSpace == static_cast<GSpacing>(nDTSize) * nBands &&
567 5 : nLineSpace == nPixelSpace * m_nBlockXSize)
568 : {
569 : // If writing one single block with the right data type and
570 : // layout (interleaved per pixel), we don't need a temporary
571 : // buffer
572 10 : const int nBlockId = poFirstBand->ComputeBlockId(
573 5 : nXOff / m_nBlockXSize, nYOff / m_nBlockYSize);
574 5 : return WriteEncodedTileOrStrip(nBlockId, pData,
575 5 : /* bPreserveDataBuffer= */ true);
576 : }
577 :
578 : // Make sure m_poGDS->m_pabyBlockBuf is allocated.
579 : // We could actually use any temporary buffer
580 2358 : if (LoadBlockBuf(/* nBlockId = */ -1,
581 2358 : /* bReadFromDisk = */ false) != CE_None)
582 : {
583 0 : return CE_Failure;
584 : }
585 :
586 : // Iterate over all blocks defined by
587 : // [nXOff, nXOff+nXSize[ * [nYOff, nYOff+nYSize[
588 : // and write their content as a nBlockXSize x nBlockYSize strile
589 : // in a temporary buffer, before calling WriteEncodedTileOrStrip()
590 : // on it
591 2358 : const int nYBlockStart = nYOff / m_nBlockYSize;
592 2358 : const int nYBlockEnd = 1 + (nYOff + nYSize - 1) / m_nBlockYSize;
593 2358 : const int nXBlockStart = nXOff / m_nBlockXSize;
594 2358 : const int nXBlockEnd = 1 + (nXOff + nXSize - 1) / m_nBlockXSize;
595 33906 : for (int nYBlock = nYBlockStart; nYBlock < nYBlockEnd; ++nYBlock)
596 : {
597 : const int nValidY = std::min(
598 31552 : m_nBlockYSize, nRasterYSize - nYBlock * m_nBlockYSize);
599 65857 : for (int nXBlock = nXBlockStart; nXBlock < nXBlockEnd;
600 : ++nXBlock)
601 : {
602 : const int nValidX = std::min(
603 34309 : m_nBlockXSize, nRasterXSize - nXBlock * m_nBlockXSize);
604 34309 : if (nValidY < m_nBlockYSize || nValidX < m_nBlockXSize)
605 : {
606 : // Make sure padding bytes at the right/bottom of the
607 : // tile are initialized to zero.
608 1250 : memset(m_pabyBlockBuf, 0,
609 1250 : static_cast<size_t>(m_nBlockXSize) *
610 1250 : m_nBlockYSize * nBands * nDTSize);
611 : }
612 34309 : const auto nBufDTSize = GDALGetDataTypeSizeBytes(eBufType);
613 34309 : const GByte *pabySrcData =
614 : static_cast<const GByte *>(pData) +
615 34309 : static_cast<size_t>(nYBlock - nYBlockStart) *
616 34309 : m_nBlockYSize * nLineSpace +
617 34309 : static_cast<size_t>(nXBlock - nXBlockStart) *
618 34309 : m_nBlockXSize * nPixelSpace;
619 34309 : if (bOrderedBands && nBandSpace == nBufDTSize &&
620 24 : nPixelSpace == nBands * nBandSpace)
621 : {
622 : // Input buffer is pixel interleaved
623 17 : for (int iY = 0; iY < nValidY; ++iY)
624 : {
625 16 : GDALCopyWords64(
626 16 : pabySrcData +
627 16 : static_cast<size_t>(iY) * nLineSpace,
628 : eBufType, nBufDTSize,
629 16 : m_pabyBlockBuf + static_cast<size_t>(iY) *
630 16 : m_nBlockXSize * nBands *
631 16 : nDTSize,
632 : eDataType, nDTSize,
633 16 : static_cast<GPtrDiff_t>(nValidX) * nBands);
634 1 : }
635 : }
636 : else
637 : {
638 : // "Random" spacing for input buffer
639 139876 : for (int iBand = 0; iBand < nBands; ++iBand)
640 : {
641 4236000 : for (int iY = 0; iY < nValidY; ++iY)
642 : {
643 4130430 : GDALCopyWords64(
644 4130430 : pabySrcData +
645 4130430 : static_cast<size_t>(iY) * nLineSpace,
646 : eBufType, static_cast<int>(nPixelSpace),
647 4130430 : m_pabyBlockBuf +
648 4130430 : (panBandMap[iBand] - 1 +
649 4130430 : static_cast<size_t>(iY) *
650 4130430 : m_nBlockXSize * nBands) *
651 4130430 : nDTSize,
652 4130430 : eDataType, nDTSize * nBands, nValidX);
653 : }
654 105568 : pabySrcData += nBandSpace;
655 : }
656 : }
657 :
658 : const int nBlockId =
659 34309 : poFirstBand->ComputeBlockId(nXBlock, nYBlock);
660 68618 : if (WriteEncodedTileOrStrip(
661 34309 : nBlockId, m_pabyBlockBuf,
662 34309 : /* bPreserveDataBuffer= */ false) != CE_None)
663 : {
664 4 : return CE_Failure;
665 : }
666 : }
667 : }
668 2354 : return CE_None;
669 : }
670 : }
671 :
672 431349 : if (psExtraArg->eResampleAlg == GRIORA_NearestNeighbour)
673 431189 : ++m_nJPEGOverviewVisibilityCounter;
674 431349 : const CPLErr eErr = GDALPamDataset::IRasterIO(
675 : eRWFlag, nXOff, nYOff, nXSize, nYSize, pData, nBufXSize, nBufYSize,
676 : eBufType, nBandCount, panBandMap, nPixelSpace, nLineSpace, nBandSpace,
677 : psExtraArg);
678 431349 : if (psExtraArg->eResampleAlg == GRIORA_NearestNeighbour)
679 431189 : m_nJPEGOverviewVisibilityCounter--;
680 :
681 431349 : if (pBufferedData)
682 : {
683 8 : VSIFree(pBufferedData);
684 8 : VSI_TIFFSetCachedRanges(TIFFClientdata(m_hTIFF), 0, nullptr, nullptr,
685 : nullptr);
686 : }
687 :
688 431348 : return eErr;
689 : }
690 :
691 : /************************************************************************/
692 : /* GetGTIFFKeysFlavor() */
693 : /************************************************************************/
694 :
695 26605 : GTIFFKeysFlavorEnum GetGTIFFKeysFlavor(CSLConstList papszOptions)
696 : {
697 : const char *pszGeoTIFFKeysFlavor =
698 26605 : CSLFetchNameValueDef(papszOptions, "GEOTIFF_KEYS_FLAVOR", "STANDARD");
699 26527 : if (EQUAL(pszGeoTIFFKeysFlavor, "ESRI_PE"))
700 1 : return GEOTIFF_KEYS_ESRI_PE;
701 26526 : return GEOTIFF_KEYS_STANDARD;
702 : }
703 :
704 : /************************************************************************/
705 : /* GetGeoTIFFVersion() */
706 : /************************************************************************/
707 :
708 26512 : GeoTIFFVersionEnum GetGeoTIFFVersion(CSLConstList papszOptions)
709 : {
710 : const char *pszVersion =
711 26512 : CSLFetchNameValueDef(papszOptions, "GEOTIFF_VERSION", "AUTO");
712 26554 : if (EQUAL(pszVersion, "1.0"))
713 3 : return GEOTIFF_VERSION_1_0;
714 26551 : if (EQUAL(pszVersion, "1.1"))
715 5 : return GEOTIFF_VERSION_1_1;
716 26546 : return GEOTIFF_VERSION_AUTO;
717 : }
718 :
719 : /************************************************************************/
720 : /* InitCreationOrOpenOptions() */
721 : /************************************************************************/
722 :
723 25170 : void GTiffDataset::InitCreationOrOpenOptions(bool bUpdateMode,
724 : CSLConstList papszOptions)
725 : {
726 25170 : InitCompressionThreads(bUpdateMode, papszOptions);
727 :
728 25055 : m_eGeoTIFFKeysFlavor = GetGTIFFKeysFlavor(papszOptions);
729 25046 : m_eGeoTIFFVersion = GetGeoTIFFVersion(papszOptions);
730 25007 : }
731 :
732 : /************************************************************************/
733 : /* IsBlockAvailable() */
734 : /* */
735 : /* Return true if the indicated strip/tile is available. We */
736 : /* establish this by testing if the stripbytecount is zero. If */
737 : /* zero then the block has never been committed to disk. */
738 : /************************************************************************/
739 :
740 2301650 : bool GTiffDataset::IsBlockAvailable(int nBlockId, vsi_l_offset *pnOffset,
741 : vsi_l_offset *pnSize, bool *pbErrOccurred)
742 :
743 : {
744 2301650 : if (pbErrOccurred)
745 2256280 : *pbErrOccurred = false;
746 :
747 2301650 : std::pair<vsi_l_offset, vsi_l_offset> oPair;
748 2301650 : if (m_oCacheStrileToOffsetByteCount.tryGet(nBlockId, oPair))
749 : {
750 452 : if (pnOffset)
751 111 : *pnOffset = oPair.first;
752 452 : if (pnSize)
753 0 : *pnSize = oPair.second;
754 452 : return oPair.first != 0;
755 : }
756 :
757 2301110 : WaitCompletionForBlock(nBlockId);
758 :
759 : // Optimization to avoid fetching the whole Strip/TileCounts and
760 : // Strip/TileOffsets arrays.
761 2301110 : if (eAccess == GA_ReadOnly && !m_bStreamingIn)
762 : {
763 2184140 : int nErrOccurred = 0;
764 : auto bytecount =
765 2184140 : TIFFGetStrileByteCountWithErr(m_hTIFF, nBlockId, &nErrOccurred);
766 2184180 : if (nErrOccurred && pbErrOccurred)
767 0 : *pbErrOccurred = true;
768 2184180 : if (pnOffset)
769 : {
770 2128820 : *pnOffset =
771 2128800 : TIFFGetStrileOffsetWithErr(m_hTIFF, nBlockId, &nErrOccurred);
772 2128820 : if (nErrOccurred && pbErrOccurred)
773 2 : *pbErrOccurred = true;
774 : }
775 2184190 : if (pnSize)
776 11949 : *pnSize = bytecount;
777 2184190 : return bytecount != 0;
778 : }
779 :
780 116976 : toff_t *panByteCounts = nullptr;
781 116976 : toff_t *panOffsets = nullptr;
782 116976 : const bool bIsTiled = CPL_TO_BOOL(TIFFIsTiled(m_hTIFF));
783 :
784 150162 : if ((bIsTiled &&
785 33202 : TIFFGetField(m_hTIFF, TIFFTAG_TILEBYTECOUNTS, &panByteCounts) &&
786 25056 : (pnOffset == nullptr ||
787 233920 : TIFFGetField(m_hTIFF, TIFFTAG_TILEOFFSETS, &panOffsets))) ||
788 83758 : (!bIsTiled &&
789 83758 : TIFFGetField(m_hTIFF, TIFFTAG_STRIPBYTECOUNTS, &panByteCounts) &&
790 38635 : (pnOffset == nullptr ||
791 38635 : TIFFGetField(m_hTIFF, TIFFTAG_STRIPOFFSETS, &panOffsets))))
792 : {
793 116960 : if (panByteCounts == nullptr ||
794 63691 : (pnOffset != nullptr && panOffsets == nullptr))
795 : {
796 0 : if (pbErrOccurred)
797 0 : *pbErrOccurred = true;
798 0 : return false;
799 : }
800 : const int nBlockCount =
801 116960 : bIsTiled ? TIFFNumberOfTiles(m_hTIFF) : TIFFNumberOfStrips(m_hTIFF);
802 116960 : if (nBlockId >= nBlockCount)
803 : {
804 0 : if (pbErrOccurred)
805 0 : *pbErrOccurred = true;
806 0 : return false;
807 : }
808 :
809 116960 : if (pnOffset)
810 63691 : *pnOffset = panOffsets[nBlockId];
811 116960 : if (pnSize)
812 7070 : *pnSize = panByteCounts[nBlockId];
813 116960 : return panByteCounts[nBlockId] != 0;
814 : }
815 : else
816 : {
817 0 : if (pbErrOccurred)
818 0 : *pbErrOccurred = true;
819 : }
820 :
821 0 : return false;
822 : }
823 :
824 : /************************************************************************/
825 : /* ReloadDirectory() */
826 : /************************************************************************/
827 :
828 6910 : void GTiffDataset::ReloadDirectory(bool bReopenHandle)
829 : {
830 6910 : bool bNeedSetInvalidDir = true;
831 6910 : if (bReopenHandle)
832 : {
833 : // When issuing a TIFFRewriteDirectory() or when a TIFFFlush() has
834 : // caused a move of the directory, we would need to invalidate the
835 : // tif_lastdiroff member, but it is not possible to do so without
836 : // re-opening the TIFF handle.
837 9 : auto hTIFFNew = VSI_TIFFReOpen(m_hTIFF);
838 9 : if (hTIFFNew != nullptr)
839 : {
840 9 : m_hTIFF = hTIFFNew;
841 9 : bNeedSetInvalidDir = false; // we could do it, but not needed
842 : }
843 : else
844 : {
845 0 : CPLError(CE_Failure, CPLE_AppDefined,
846 : "Cannot re-open TIFF handle for file %s. "
847 : "Directory chaining may be corrupted !",
848 : m_pszFilename);
849 : }
850 : }
851 6910 : if (bNeedSetInvalidDir)
852 : {
853 6901 : TIFFSetSubDirectory(m_hTIFF, 0);
854 : }
855 6910 : CPL_IGNORE_RET_VAL(SetDirectory());
856 6910 : }
857 :
858 : /************************************************************************/
859 : /* SetDirectory() */
860 : /************************************************************************/
861 :
862 48009 : bool GTiffDataset::SetDirectory()
863 :
864 : {
865 48009 : Crystalize();
866 :
867 47944 : if (TIFFCurrentDirOffset(m_hTIFF) == m_nDirOffset)
868 : {
869 39245 : return true;
870 : }
871 :
872 8650 : const int nSetDirResult = TIFFSetSubDirectory(m_hTIFF, m_nDirOffset);
873 8650 : if (!nSetDirResult)
874 0 : return false;
875 :
876 8650 : RestoreVolatileParameters(m_hTIFF);
877 :
878 8649 : return true;
879 : }
880 :
881 : /************************************************************************/
882 : /* GTiffSetDeflateSubCodec() */
883 : /************************************************************************/
884 :
885 6397 : void GTiffSetDeflateSubCodec(TIFF *hTIFF)
886 : {
887 : (void)hTIFF;
888 :
889 : #if defined(TIFFTAG_DEFLATE_SUBCODEC) && defined(LIBDEFLATE_SUPPORT)
890 : // Mostly for strict reproducibility purposes
891 6397 : if (EQUAL(CPLGetConfigOption("GDAL_TIFF_DEFLATE_SUBCODEC", ""), "ZLIB"))
892 : {
893 4097 : TIFFSetField(hTIFF, TIFFTAG_DEFLATE_SUBCODEC, DEFLATE_SUBCODEC_ZLIB);
894 : }
895 : #endif
896 6397 : }
897 :
898 : /************************************************************************/
899 : /* RestoreVolatileParameters() */
900 : /************************************************************************/
901 :
902 41341 : void GTiffDataset::RestoreVolatileParameters(TIFF *hTIFF)
903 : {
904 :
905 : /* -------------------------------------------------------------------- */
906 : /* YCbCr JPEG compressed images should be translated on the fly */
907 : /* to RGB by libtiff/libjpeg unless specifically requested */
908 : /* otherwise. */
909 : /* -------------------------------------------------------------------- */
910 83109 : if (m_nCompression == COMPRESSION_JPEG &&
911 41625 : m_nPhotometric == PHOTOMETRIC_YCBCR &&
912 285 : CPLTestBool(CPLGetConfigOption("CONVERT_YCBCR_TO_RGB", "YES")))
913 : {
914 285 : int nColorMode = JPEGCOLORMODE_RAW; // Initialize to 0;
915 :
916 285 : TIFFGetField(hTIFF, TIFFTAG_JPEGCOLORMODE, &nColorMode);
917 285 : if (nColorMode != JPEGCOLORMODE_RGB)
918 : {
919 251 : TIFFSetField(hTIFF, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB);
920 : }
921 : }
922 :
923 41340 : if (m_nCompression == COMPRESSION_ADOBE_DEFLATE ||
924 35533 : m_nCompression == COMPRESSION_LERC)
925 : {
926 6044 : GTiffSetDeflateSubCodec(hTIFF);
927 : }
928 :
929 : /* -------------------------------------------------------------------- */
930 : /* Propagate any quality settings. */
931 : /* -------------------------------------------------------------------- */
932 41338 : if (eAccess == GA_Update)
933 : {
934 : // Now, reset zip and jpeg quality.
935 35153 : if (m_nJpegQuality > 0 && m_nCompression == COMPRESSION_JPEG)
936 : {
937 : #ifdef DEBUG_VERBOSE
938 : CPLDebug("GTiff", "Propagate JPEG_QUALITY(%d) in SetDirectory()",
939 : m_nJpegQuality);
940 : #endif
941 185 : TIFFSetField(hTIFF, TIFFTAG_JPEGQUALITY, m_nJpegQuality);
942 : }
943 35153 : if (m_nJpegTablesMode >= 0 && m_nCompression == COMPRESSION_JPEG)
944 326 : TIFFSetField(hTIFF, TIFFTAG_JPEGTABLESMODE, m_nJpegTablesMode);
945 35153 : if (m_nZLevel > 0 && (m_nCompression == COMPRESSION_ADOBE_DEFLATE ||
946 12 : m_nCompression == COMPRESSION_LERC))
947 26 : TIFFSetField(hTIFF, TIFFTAG_ZIPQUALITY, m_nZLevel);
948 35153 : if (m_nLZMAPreset > 0 && m_nCompression == COMPRESSION_LZMA)
949 8 : TIFFSetField(hTIFF, TIFFTAG_LZMAPRESET, m_nLZMAPreset);
950 35153 : if (m_nZSTDLevel > 0 && (m_nCompression == COMPRESSION_ZSTD ||
951 12 : m_nCompression == COMPRESSION_LERC))
952 18 : TIFFSetField(hTIFF, TIFFTAG_ZSTD_LEVEL, m_nZSTDLevel);
953 35153 : if (m_nCompression == COMPRESSION_LERC)
954 : {
955 185 : TIFFSetField(hTIFF, TIFFTAG_LERC_MAXZERROR, m_dfMaxZError);
956 : }
957 35153 : if (m_nWebPLevel > 0 && m_nCompression == COMPRESSION_WEBP)
958 124 : TIFFSetField(hTIFF, TIFFTAG_WEBP_LEVEL, m_nWebPLevel);
959 35153 : if (m_bWebPLossless && m_nCompression == COMPRESSION_WEBP)
960 50 : TIFFSetField(hTIFF, TIFFTAG_WEBP_LOSSLESS, 1);
961 : #ifdef HAVE_JXL
962 35153 : if (m_nCompression == COMPRESSION_JXL ||
963 35151 : m_nCompression == COMPRESSION_JXL_DNG_1_7)
964 : {
965 76 : TIFFSetField(hTIFF, TIFFTAG_JXL_LOSSYNESS,
966 76 : m_bJXLLossless ? JXL_LOSSLESS : JXL_LOSSY);
967 76 : TIFFSetField(hTIFF, TIFFTAG_JXL_EFFORT, m_nJXLEffort);
968 76 : TIFFSetField(hTIFF, TIFFTAG_JXL_DISTANCE, m_fJXLDistance);
969 76 : TIFFSetField(hTIFF, TIFFTAG_JXL_ALPHA_DISTANCE,
970 76 : m_fJXLAlphaDistance);
971 : }
972 : #endif
973 : }
974 41338 : }
975 :
976 : /************************************************************************/
977 : /* ComputeBlocksPerColRowAndBand() */
978 : /************************************************************************/
979 :
980 26941 : bool GTiffDataset::ComputeBlocksPerColRowAndBand(int l_nBands)
981 : {
982 26941 : m_nBlocksPerColumn = DIV_ROUND_UP(nRasterYSize, m_nBlockYSize);
983 26941 : m_nBlocksPerRow = DIV_ROUND_UP(nRasterXSize, m_nBlockXSize);
984 26941 : if (m_nBlocksPerColumn > INT_MAX / m_nBlocksPerRow)
985 : {
986 1 : ReportError(CE_Failure, CPLE_AppDefined, "Too many blocks: %d x %d",
987 : m_nBlocksPerRow, m_nBlocksPerColumn);
988 1 : return false;
989 : }
990 :
991 : // Note: we could potentially go up to UINT_MAX blocks, but currently
992 : // we use a int nBlockId
993 26940 : m_nBlocksPerBand = m_nBlocksPerColumn * m_nBlocksPerRow;
994 26940 : if (m_nPlanarConfig == PLANARCONFIG_SEPARATE &&
995 1695 : m_nBlocksPerBand > INT_MAX / l_nBands)
996 : {
997 1 : ReportError(CE_Failure, CPLE_AppDefined,
998 : "Too many blocks: %d x %d x %d bands", m_nBlocksPerRow,
999 : m_nBlocksPerColumn, l_nBands);
1000 1 : return false;
1001 : }
1002 26939 : return true;
1003 : }
1004 :
1005 : /************************************************************************/
1006 : /* SetStructuralMDFromParent() */
1007 : /************************************************************************/
1008 :
1009 1116 : void GTiffDataset::SetStructuralMDFromParent(GTiffDataset *poParentDS)
1010 : {
1011 1116 : m_bBlockOrderRowMajor = poParentDS->m_bBlockOrderRowMajor;
1012 1116 : m_bLeaderSizeAsUInt4 = poParentDS->m_bLeaderSizeAsUInt4;
1013 1116 : m_bTrailerRepeatedLast4BytesRepeated =
1014 1116 : poParentDS->m_bTrailerRepeatedLast4BytesRepeated;
1015 1116 : m_bMaskInterleavedWithImagery = poParentDS->m_bMaskInterleavedWithImagery;
1016 1116 : m_bWriteEmptyTiles = poParentDS->m_bWriteEmptyTiles;
1017 1116 : m_bTileInterleave = poParentDS->m_bTileInterleave;
1018 1116 : }
1019 :
1020 : /************************************************************************/
1021 : /* ScanDirectories() */
1022 : /* */
1023 : /* Scan through all the directories finding overviews, masks */
1024 : /* and subdatasets. */
1025 : /************************************************************************/
1026 :
1027 806535 : void GTiffDataset::ScanDirectories()
1028 :
1029 : {
1030 : /* -------------------------------------------------------------------- */
1031 : /* We only scan once. We do not scan for non-base datasets. */
1032 : /* -------------------------------------------------------------------- */
1033 806535 : if (!m_bScanDeferred)
1034 798847 : return;
1035 :
1036 8004 : m_bScanDeferred = false;
1037 :
1038 8004 : if (m_poBaseDS)
1039 316 : return;
1040 :
1041 7688 : Crystalize();
1042 :
1043 6261 : CPLDebug("GTiff", "ScanDirectories()");
1044 :
1045 : /* ==================================================================== */
1046 : /* Scan all directories. */
1047 : /* ==================================================================== */
1048 12522 : CPLStringList aosSubdatasets;
1049 6261 : int iDirIndex = 0;
1050 :
1051 6261 : FlushDirectory();
1052 :
1053 1103 : do
1054 : {
1055 7364 : toff_t nTopDir = TIFFCurrentDirOffset(m_hTIFF);
1056 7364 : uint32_t nSubType = 0;
1057 :
1058 7364 : ++iDirIndex;
1059 :
1060 7364 : toff_t *tmpSubIFDOffsets = nullptr;
1061 7364 : toff_t *subIFDOffsets = nullptr;
1062 7364 : uint16_t nSubIFDs = 0;
1063 7364 : if (TIFFGetField(m_hTIFF, TIFFTAG_SUBIFD, &nSubIFDs,
1064 7364 : &tmpSubIFDOffsets) &&
1065 : iDirIndex == 1)
1066 : {
1067 : subIFDOffsets =
1068 13 : static_cast<toff_t *>(CPLMalloc(nSubIFDs * sizeof(toff_t)));
1069 39 : for (uint16_t iSubIFD = 0; iSubIFD < nSubIFDs; iSubIFD++)
1070 : {
1071 26 : subIFDOffsets[iSubIFD] = tmpSubIFDOffsets[iSubIFD];
1072 : }
1073 : }
1074 :
1075 : // early break for backwards compatibility: if the first directory read
1076 : // is also the last, and there are no subIFDs, no use continuing
1077 7364 : if (iDirIndex == 1 && nSubIFDs == 0 && TIFFLastDirectory(m_hTIFF))
1078 : {
1079 5617 : CPLFree(subIFDOffsets);
1080 5617 : break;
1081 : }
1082 :
1083 3520 : for (uint16_t iSubIFD = 0; iSubIFD <= nSubIFDs; iSubIFD++)
1084 : {
1085 1781 : toff_t nThisDir = nTopDir;
1086 1781 : if (iSubIFD > 0 && iDirIndex > 1) // don't read subIFDs if we are
1087 : // not in the original directory
1088 8 : break;
1089 1773 : if (iSubIFD > 0)
1090 : {
1091 : // make static analyzer happy. subIFDOffsets cannot be null if
1092 : // iSubIFD>0
1093 26 : assert(subIFDOffsets != nullptr);
1094 26 : nThisDir = subIFDOffsets[iSubIFD - 1];
1095 : // CPLDebug("GTiff", "Opened subIFD %d/%d at offset %llu.",
1096 : // iSubIFD, nSubIFDs, nThisDir);
1097 26 : if (!TIFFSetSubDirectory(m_hTIFF, nThisDir))
1098 0 : break;
1099 : }
1100 :
1101 1773 : if (!TIFFGetField(m_hTIFF, TIFFTAG_SUBFILETYPE, &nSubType))
1102 399 : nSubType = 0;
1103 :
1104 : /* Embedded overview of the main image */
1105 1773 : if ((nSubType & FILETYPE_REDUCEDIMAGE) != 0 &&
1106 1267 : (nSubType & FILETYPE_MASK) == 0 &&
1107 1161 : ((nSubIFDs == 0 && iDirIndex != 1) || iSubIFD > 0) &&
1108 903 : m_nOverviewCount < 30 /* to avoid DoS */)
1109 : {
1110 903 : GTiffDataset *poODS = new GTiffDataset();
1111 903 : poODS->ShareLockWithParentDataset(this);
1112 903 : poODS->SetStructuralMDFromParent(this);
1113 903 : if (m_bHasGotSiblingFiles)
1114 171 : poODS->oOvManager.TransferSiblingFiles(
1115 : CSLDuplicate(GetSiblingFiles()));
1116 903 : poODS->m_pszFilename = CPLStrdup(m_pszFilename);
1117 903 : poODS->m_nColorTableMultiplier = m_nColorTableMultiplier;
1118 903 : if (poODS->OpenOffset(VSI_TIFFOpenChild(m_hTIFF), nThisDir,
1119 1806 : eAccess) != CE_None ||
1120 903 : poODS->GetRasterCount() != GetRasterCount())
1121 : {
1122 0 : delete poODS;
1123 : }
1124 : else
1125 : {
1126 903 : CPLDebug("GTiff", "Opened %dx%d overview.",
1127 : poODS->GetRasterXSize(), poODS->GetRasterYSize());
1128 903 : ++m_nOverviewCount;
1129 1806 : m_papoOverviewDS = static_cast<GTiffDataset **>(CPLRealloc(
1130 903 : m_papoOverviewDS, m_nOverviewCount * (sizeof(void *))));
1131 903 : m_papoOverviewDS[m_nOverviewCount - 1] = poODS;
1132 903 : poODS->m_poBaseDS = this;
1133 903 : poODS->m_bIsOverview = true;
1134 :
1135 : // Propagate a few compression related settings that are
1136 : // no preserved at the TIFF tag level, but may be set in
1137 : // the GDAL_METADATA tag in the IMAGE_STRUCTURE domain
1138 : // Note: this might not be totally reflecting the reality
1139 : // if users have created overviews with different settings
1140 : // but this is probably better than the default ones
1141 903 : poODS->m_nWebPLevel = m_nWebPLevel;
1142 : // below is not a copy & paste error: we transfer the
1143 : // m_dfMaxZErrorOverview overview of the parent to
1144 : // m_dfMaxZError of the overview
1145 903 : poODS->m_dfMaxZError = m_dfMaxZErrorOverview;
1146 903 : poODS->m_dfMaxZErrorOverview = m_dfMaxZErrorOverview;
1147 : #if HAVE_JXL
1148 903 : poODS->m_bJXLLossless = m_bJXLLossless;
1149 903 : poODS->m_fJXLDistance = m_fJXLDistance;
1150 903 : poODS->m_fJXLAlphaDistance = m_fJXLAlphaDistance;
1151 903 : poODS->m_nJXLEffort = m_nJXLEffort;
1152 : #endif
1153 : // Those ones are not serialized currently..
1154 : // poODS->m_nZLevel = m_nZLevel;
1155 : // poODS->m_nLZMAPreset = m_nLZMAPreset;
1156 : // poODS->m_nZSTDLevel = m_nZSTDLevel;
1157 903 : }
1158 : }
1159 : // Embedded mask of the main image.
1160 870 : else if ((nSubType & FILETYPE_MASK) != 0 &&
1161 213 : (nSubType & FILETYPE_REDUCEDIMAGE) == 0 &&
1162 107 : ((nSubIFDs == 0 && iDirIndex != 1) || iSubIFD > 0) &&
1163 107 : m_poMaskDS == nullptr)
1164 : {
1165 107 : m_poMaskDS = new GTiffDataset();
1166 107 : m_poMaskDS->ShareLockWithParentDataset(this);
1167 107 : m_poMaskDS->SetStructuralMDFromParent(this);
1168 107 : m_poMaskDS->m_pszFilename = CPLStrdup(m_pszFilename);
1169 :
1170 : // The TIFF6 specification - page 37 - only allows 1
1171 : // SamplesPerPixel and 1 BitsPerSample Here we support either 1
1172 : // or 8 bit per sample and we support either 1 sample per pixel
1173 : // or as many samples as in the main image We don't check the
1174 : // value of the PhotometricInterpretation tag, which should be
1175 : // set to "Transparency mask" (4) according to the specification
1176 : // (page 36). However, the TIFF6 specification allows image
1177 : // masks to have a higher resolution than the main image, what
1178 : // we don't support here.
1179 :
1180 107 : if (m_poMaskDS->OpenOffset(VSI_TIFFOpenChild(m_hTIFF), nThisDir,
1181 107 : eAccess) != CE_None ||
1182 107 : m_poMaskDS->GetRasterCount() == 0 ||
1183 107 : !(m_poMaskDS->GetRasterCount() == 1 ||
1184 3 : m_poMaskDS->GetRasterCount() == GetRasterCount()) ||
1185 107 : m_poMaskDS->GetRasterXSize() != GetRasterXSize() ||
1186 321 : m_poMaskDS->GetRasterYSize() != GetRasterYSize() ||
1187 107 : m_poMaskDS->GetRasterBand(1)->GetRasterDataType() !=
1188 : GDT_Byte)
1189 : {
1190 0 : delete m_poMaskDS;
1191 0 : m_poMaskDS = nullptr;
1192 : }
1193 : else
1194 : {
1195 107 : CPLDebug("GTiff", "Opened band mask.");
1196 107 : m_poMaskDS->m_poBaseDS = this;
1197 107 : m_poMaskDS->m_poImageryDS = this;
1198 :
1199 214 : m_poMaskDS->m_bPromoteTo8Bits =
1200 107 : CPLTestBool(CPLGetConfigOption(
1201 : "GDAL_TIFF_INTERNAL_MASK_TO_8BIT", "YES"));
1202 : }
1203 : }
1204 :
1205 : // Embedded mask of an overview. The TIFF6 specification allows the
1206 : // combination of the FILETYPE_xxxx masks.
1207 763 : else if ((nSubType & FILETYPE_REDUCEDIMAGE) != 0 &&
1208 364 : (nSubType & FILETYPE_MASK) != 0 &&
1209 106 : ((nSubIFDs == 0 && iDirIndex != 1) || iSubIFD > 0))
1210 : {
1211 106 : GTiffDataset *poDS = new GTiffDataset();
1212 106 : poDS->ShareLockWithParentDataset(this);
1213 106 : poDS->SetStructuralMDFromParent(this);
1214 106 : poDS->m_pszFilename = CPLStrdup(m_pszFilename);
1215 106 : if (poDS->OpenOffset(VSI_TIFFOpenChild(m_hTIFF), nThisDir,
1216 106 : eAccess) != CE_None ||
1217 212 : poDS->GetRasterCount() == 0 ||
1218 106 : poDS->GetRasterBand(1)->GetRasterDataType() != GDT_Byte)
1219 : {
1220 0 : delete poDS;
1221 : }
1222 : else
1223 : {
1224 106 : int i = 0; // Used after for.
1225 158 : for (; i < m_nOverviewCount; ++i)
1226 : {
1227 158 : auto poOvrDS = cpl::down_cast<GTiffDataset *>(
1228 158 : GDALDataset::FromHandle(m_papoOverviewDS[i]));
1229 422 : if (poOvrDS->m_poMaskDS == nullptr &&
1230 106 : poDS->GetRasterXSize() ==
1231 106 : m_papoOverviewDS[i]->GetRasterXSize() &&
1232 106 : poDS->GetRasterYSize() ==
1233 370 : m_papoOverviewDS[i]->GetRasterYSize() &&
1234 106 : (poDS->GetRasterCount() == 1 ||
1235 0 : poDS->GetRasterCount() == GetRasterCount()))
1236 : {
1237 106 : CPLDebug(
1238 : "GTiff", "Opened band mask for %dx%d overview.",
1239 : poDS->GetRasterXSize(), poDS->GetRasterYSize());
1240 106 : poDS->m_poImageryDS = poOvrDS;
1241 106 : poOvrDS->m_poMaskDS = poDS;
1242 106 : poDS->m_bPromoteTo8Bits =
1243 106 : CPLTestBool(CPLGetConfigOption(
1244 : "GDAL_TIFF_INTERNAL_MASK_TO_8BIT", "YES"));
1245 106 : poDS->m_poBaseDS = this;
1246 106 : break;
1247 : }
1248 : }
1249 106 : if (i == m_nOverviewCount)
1250 : {
1251 0 : delete poDS;
1252 : }
1253 106 : }
1254 : }
1255 657 : else if (!m_bSingleIFDOpened &&
1256 652 : (nSubType == 0 || nSubType == FILETYPE_PAGE))
1257 : {
1258 394 : uint32_t nXSize = 0;
1259 394 : uint32_t nYSize = 0;
1260 :
1261 394 : TIFFGetField(m_hTIFF, TIFFTAG_IMAGEWIDTH, &nXSize);
1262 394 : TIFFGetField(m_hTIFF, TIFFTAG_IMAGELENGTH, &nYSize);
1263 :
1264 : // For Geodetic TIFF grids (GTG)
1265 : // (https://proj.org/specifications/geodetictiffgrids.html)
1266 : // extract the grid_name to put it in the description
1267 788 : std::string osFriendlyName;
1268 394 : char *pszText = nullptr;
1269 458 : if (TIFFGetField(m_hTIFF, TIFFTAG_GDAL_METADATA, &pszText) &&
1270 64 : strstr(pszText, "grid_name") != nullptr)
1271 : {
1272 4 : CPLXMLNode *psRoot = CPLParseXMLString(pszText);
1273 : const CPLXMLNode *psItem =
1274 4 : psRoot ? CPLGetXMLNode(psRoot, "=GDALMetadata")
1275 4 : : nullptr;
1276 4 : if (psItem)
1277 4 : psItem = psItem->psChild;
1278 4 : for (; psItem != nullptr; psItem = psItem->psNext)
1279 : {
1280 :
1281 4 : if (psItem->eType != CXT_Element ||
1282 4 : !EQUAL(psItem->pszValue, "Item"))
1283 0 : continue;
1284 :
1285 : const char *pszKey =
1286 4 : CPLGetXMLValue(psItem, "name", nullptr);
1287 : const char *pszValue =
1288 4 : CPLGetXMLValue(psItem, nullptr, nullptr);
1289 : int nBand =
1290 4 : atoi(CPLGetXMLValue(psItem, "sample", "-1"));
1291 4 : if (pszKey && pszValue && nBand <= 0 &&
1292 4 : EQUAL(pszKey, "grid_name"))
1293 : {
1294 4 : osFriendlyName = ": ";
1295 4 : osFriendlyName += pszValue;
1296 4 : break;
1297 : }
1298 : }
1299 :
1300 4 : CPLDestroyXMLNode(psRoot);
1301 : }
1302 :
1303 394 : if (nXSize > INT_MAX || nYSize > INT_MAX)
1304 : {
1305 1 : CPLDebug("GTiff",
1306 : "Skipping directory with too large image: %u x %u",
1307 : nXSize, nYSize);
1308 : }
1309 : else
1310 : {
1311 393 : uint16_t nSPP = 0;
1312 393 : if (!TIFFGetField(m_hTIFF, TIFFTAG_SAMPLESPERPIXEL, &nSPP))
1313 0 : nSPP = 1;
1314 :
1315 786 : CPLString osName, osDesc;
1316 : osName.Printf("SUBDATASET_%d_NAME=GTIFF_DIR:%d:%s",
1317 393 : iDirIndex, iDirIndex, m_pszFilename);
1318 : osDesc.Printf(
1319 : "SUBDATASET_%d_DESC=Page %d (%dP x %dL x %dB)",
1320 : iDirIndex, iDirIndex, static_cast<int>(nXSize),
1321 393 : static_cast<int>(nYSize), nSPP);
1322 393 : osDesc += osFriendlyName;
1323 :
1324 393 : aosSubdatasets.AddString(osName);
1325 393 : aosSubdatasets.AddString(osDesc);
1326 : }
1327 : }
1328 : }
1329 1747 : CPLFree(subIFDOffsets);
1330 :
1331 : // Make sure we are stepping from the expected directory regardless
1332 : // of churn done processing the above.
1333 1747 : if (TIFFCurrentDirOffset(m_hTIFF) != nTopDir)
1334 13 : TIFFSetSubDirectory(m_hTIFF, nTopDir);
1335 2850 : } while (!m_bSingleIFDOpened && !TIFFLastDirectory(m_hTIFF) &&
1336 1103 : TIFFReadDirectory(m_hTIFF) != 0);
1337 :
1338 6261 : ReloadDirectory();
1339 :
1340 : // If we have a mask for the main image, loop over the overviews, and if
1341 : // they have a mask, let's set this mask as an overview of the main mask.
1342 6260 : if (m_poMaskDS != nullptr)
1343 : {
1344 213 : for (int i = 0; i < m_nOverviewCount; ++i)
1345 : {
1346 106 : if (cpl::down_cast<GTiffDataset *>(
1347 106 : GDALDataset::FromHandle(m_papoOverviewDS[i]))
1348 106 : ->m_poMaskDS != nullptr)
1349 : {
1350 106 : ++m_poMaskDS->m_nOverviewCount;
1351 212 : m_poMaskDS->m_papoOverviewDS =
1352 212 : static_cast<GTiffDataset **>(CPLRealloc(
1353 106 : m_poMaskDS->m_papoOverviewDS,
1354 106 : m_poMaskDS->m_nOverviewCount * (sizeof(void *))));
1355 106 : m_poMaskDS->m_papoOverviewDS[m_poMaskDS->m_nOverviewCount - 1] =
1356 106 : cpl::down_cast<GTiffDataset *>(
1357 106 : GDALDataset::FromHandle(m_papoOverviewDS[i]))
1358 106 : ->m_poMaskDS;
1359 : }
1360 : }
1361 : }
1362 :
1363 : // Assign color interpretation from main dataset
1364 6260 : const int l_nBands = GetRasterCount();
1365 7163 : for (int iOvr = 0; iOvr < m_nOverviewCount; ++iOvr)
1366 : {
1367 2517 : for (int i = 1; i <= l_nBands; i++)
1368 : {
1369 0 : auto poBand = dynamic_cast<GTiffRasterBand *>(
1370 1615 : m_papoOverviewDS[iOvr]->GetRasterBand(i));
1371 1615 : if (poBand)
1372 1614 : poBand->m_eBandInterp =
1373 1615 : GetRasterBand(i)->GetColorInterpretation();
1374 : }
1375 : }
1376 :
1377 : /* -------------------------------------------------------------------- */
1378 : /* Only keep track of subdatasets if we have more than one */
1379 : /* subdataset (pair). */
1380 : /* -------------------------------------------------------------------- */
1381 6260 : if (aosSubdatasets.size() > 2)
1382 : {
1383 10 : m_oGTiffMDMD.SetMetadata(aosSubdatasets.List(), "SUBDATASETS");
1384 : }
1385 : }
1386 :
1387 : /************************************************************************/
1388 : /* GetInternalHandle() */
1389 : /************************************************************************/
1390 :
1391 2150 : void *GTiffDataset::GetInternalHandle(const char * /* pszHandleName */)
1392 :
1393 : {
1394 2150 : return m_hTIFF;
1395 : }
1396 :
1397 : /************************************************************************/
1398 : /* GetFileList() */
1399 : /************************************************************************/
1400 :
1401 2454 : char **GTiffDataset::GetFileList()
1402 :
1403 : {
1404 2454 : LoadGeoreferencingAndPamIfNeeded();
1405 :
1406 2454 : char **papszFileList = GDALPamDataset::GetFileList();
1407 :
1408 2454 : LoadMetadata();
1409 2454 : if (nullptr != m_papszMetadataFiles)
1410 : {
1411 77 : for (int i = 0; m_papszMetadataFiles[i] != nullptr; ++i)
1412 : {
1413 44 : if (CSLFindString(papszFileList, m_papszMetadataFiles[i]) < 0)
1414 : {
1415 : papszFileList =
1416 44 : CSLAddString(papszFileList, m_papszMetadataFiles[i]);
1417 : }
1418 : }
1419 : }
1420 :
1421 2460 : if (m_pszGeorefFilename &&
1422 6 : CSLFindString(papszFileList, m_pszGeorefFilename) == -1)
1423 : {
1424 6 : papszFileList = CSLAddString(papszFileList, m_pszGeorefFilename);
1425 : }
1426 :
1427 2454 : if (m_nXMLGeorefSrcIndex >= 0)
1428 2454 : LookForProjection();
1429 :
1430 2455 : if (m_pszXMLFilename &&
1431 1 : CSLFindString(papszFileList, m_pszXMLFilename) == -1)
1432 : {
1433 1 : papszFileList = CSLAddString(papszFileList, m_pszXMLFilename);
1434 : }
1435 :
1436 2454 : return papszFileList;
1437 : }
1438 :
1439 : /************************************************************************/
1440 : /* GetRawBinaryLayout() */
1441 : /************************************************************************/
1442 :
1443 9 : bool GTiffDataset::GetRawBinaryLayout(GDALDataset::RawBinaryLayout &sLayout)
1444 : {
1445 9 : if (eAccess == GA_Update)
1446 : {
1447 3 : FlushCache(false);
1448 3 : Crystalize();
1449 : }
1450 :
1451 9 : if (m_nCompression != COMPRESSION_NONE)
1452 1 : return false;
1453 8 : if (!CPLIsPowerOfTwo(m_nBitsPerSample) || m_nBitsPerSample < 8)
1454 0 : return false;
1455 8 : const auto eDT = GetRasterBand(1)->GetRasterDataType();
1456 8 : if (GDALDataTypeIsComplex(eDT))
1457 0 : return false;
1458 :
1459 8 : toff_t *panByteCounts = nullptr;
1460 8 : toff_t *panOffsets = nullptr;
1461 8 : const bool bIsTiled = CPL_TO_BOOL(TIFFIsTiled(m_hTIFF));
1462 :
1463 16 : if (!((bIsTiled &&
1464 3 : TIFFGetField(m_hTIFF, TIFFTAG_TILEBYTECOUNTS, &panByteCounts) &&
1465 3 : TIFFGetField(m_hTIFF, TIFFTAG_TILEOFFSETS, &panOffsets)) ||
1466 5 : (!bIsTiled &&
1467 5 : TIFFGetField(m_hTIFF, TIFFTAG_STRIPBYTECOUNTS, &panByteCounts) &&
1468 5 : TIFFGetField(m_hTIFF, TIFFTAG_STRIPOFFSETS, &panOffsets))))
1469 : {
1470 0 : return false;
1471 : }
1472 :
1473 8 : const int nDTSize = GDALGetDataTypeSizeBytes(eDT);
1474 8 : vsi_l_offset nImgOffset = panOffsets[0];
1475 16 : GIntBig nPixelOffset = (m_nPlanarConfig == PLANARCONFIG_CONTIG)
1476 8 : ? static_cast<GIntBig>(nDTSize) * nBands
1477 : : nDTSize;
1478 8 : GIntBig nLineOffset = nPixelOffset * nRasterXSize;
1479 8 : GIntBig nBandOffset =
1480 8 : (m_nPlanarConfig == PLANARCONFIG_CONTIG && nBands > 1) ? nDTSize : 0;
1481 8 : RawBinaryLayout::Interleaving eInterleaving =
1482 12 : (nBands == 1) ? RawBinaryLayout::Interleaving::UNKNOWN
1483 4 : : (m_nPlanarConfig == PLANARCONFIG_CONTIG)
1484 4 : ? RawBinaryLayout::Interleaving::BIP
1485 : : RawBinaryLayout::Interleaving::BSQ;
1486 8 : if (bIsTiled)
1487 : {
1488 : // Only a single block tiled file with same dimension as the raster
1489 : // might be acceptable
1490 3 : if (m_nBlockXSize != nRasterXSize || m_nBlockYSize != nRasterYSize)
1491 1 : return false;
1492 2 : if (nBands > 1 && m_nPlanarConfig != PLANARCONFIG_CONTIG)
1493 : {
1494 1 : nBandOffset = static_cast<GIntBig>(panOffsets[1]) -
1495 1 : static_cast<GIntBig>(panOffsets[0]);
1496 2 : for (int i = 2; i < nBands; i++)
1497 : {
1498 1 : if (static_cast<GIntBig>(panOffsets[i]) -
1499 1 : static_cast<GIntBig>(panOffsets[i - 1]) !=
1500 : nBandOffset)
1501 0 : return false;
1502 : }
1503 : }
1504 : }
1505 : else
1506 : {
1507 5 : const int nStrips = DIV_ROUND_UP(nRasterYSize, m_nRowsPerStrip);
1508 5 : if (nBands == 1 || m_nPlanarConfig == PLANARCONFIG_CONTIG)
1509 : {
1510 4 : vsi_l_offset nLastStripEnd = panOffsets[0] + panByteCounts[0];
1511 16 : for (int iStrip = 1; iStrip < nStrips; iStrip++)
1512 : {
1513 12 : if (nLastStripEnd != panOffsets[iStrip])
1514 0 : return false;
1515 12 : nLastStripEnd = panOffsets[iStrip] + panByteCounts[iStrip];
1516 4 : }
1517 : }
1518 : else
1519 : {
1520 : // Note: we could potentially have BIL order with m_nRowsPerStrip ==
1521 : // 1 and if strips are ordered strip_line_1_band_1, ...,
1522 : // strip_line_1_band_N, strip_line2_band1, ... strip_line2_band_N,
1523 : // etc.... but that'd be faily exotic ! So only detect BSQ layout
1524 : // here
1525 1 : nBandOffset = static_cast<GIntBig>(panOffsets[nStrips]) -
1526 1 : static_cast<GIntBig>(panOffsets[0]);
1527 4 : for (int i = 0; i < nBands; i++)
1528 : {
1529 3 : uint32_t iStripOffset = nStrips * i;
1530 3 : vsi_l_offset nLastStripEnd =
1531 3 : panOffsets[iStripOffset] + panByteCounts[iStripOffset];
1532 3 : for (int iStrip = 1; iStrip < nStrips; iStrip++)
1533 : {
1534 0 : if (nLastStripEnd != panOffsets[iStripOffset + iStrip])
1535 0 : return false;
1536 0 : nLastStripEnd = panOffsets[iStripOffset + iStrip] +
1537 0 : panByteCounts[iStripOffset + iStrip];
1538 : }
1539 3 : if (i >= 2 && static_cast<GIntBig>(panOffsets[iStripOffset]) -
1540 1 : static_cast<GIntBig>(
1541 1 : panOffsets[iStripOffset - nStrips]) !=
1542 : nBandOffset)
1543 : {
1544 0 : return false;
1545 : }
1546 : }
1547 : }
1548 : }
1549 :
1550 7 : sLayout.osRawFilename = m_pszFilename;
1551 7 : sLayout.eInterleaving = eInterleaving;
1552 7 : sLayout.eDataType = eDT;
1553 : #ifdef CPL_LSB
1554 7 : sLayout.bLittleEndianOrder = !TIFFIsByteSwapped(m_hTIFF);
1555 : #else
1556 : sLayout.bLittleEndianOrder = TIFFIsByteSwapped(m_hTIFF);
1557 : #endif
1558 7 : sLayout.nImageOffset = nImgOffset;
1559 7 : sLayout.nPixelOffset = nPixelOffset;
1560 7 : sLayout.nLineOffset = nLineOffset;
1561 7 : sLayout.nBandOffset = nBandOffset;
1562 :
1563 7 : return true;
1564 : }
1565 :
1566 : /************************************************************************/
1567 : /* GTiffDatasetLibGeotiffErrorCallback() */
1568 : /************************************************************************/
1569 :
1570 0 : static void GTiffDatasetLibGeotiffErrorCallback(GTIF *, int level,
1571 : const char *pszMsg, ...)
1572 : {
1573 : va_list ap;
1574 0 : va_start(ap, pszMsg);
1575 0 : CPLErrorV((level == LIBGEOTIFF_WARNING) ? CE_Warning : CE_Failure,
1576 : CPLE_AppDefined, pszMsg, ap);
1577 0 : va_end(ap);
1578 0 : }
1579 :
1580 : /************************************************************************/
1581 : /* GTIFNew() */
1582 : /************************************************************************/
1583 :
1584 26720 : /* static */ GTIF *GTiffDataset::GTIFNew(TIFF *hTIFF)
1585 : {
1586 26720 : GTIF *gtif = GTIFNewEx(hTIFF, GTiffDatasetLibGeotiffErrorCallback, nullptr);
1587 26720 : if (gtif)
1588 : {
1589 26720 : GTIFAttachPROJContext(gtif, OSRGetProjTLSContext());
1590 : }
1591 26720 : return gtif;
1592 : }
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