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 29119 : const GTIFFTag *GTiffDataset::GetTIFFTags()
63 : {
64 29119 : return asTIFFTags;
65 : }
66 :
67 : /************************************************************************/
68 : /* GTiffDataset() */
69 : /************************************************************************/
70 :
71 32502 : 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 32526 : CPLTestBool(CPLGetConfigOption("GTIFF_DONT_WRITE_BLOCKS", "NO"))),
91 : m_bIsFinalized(false),
92 : m_bIgnoreReadErrors(
93 32521 : CPLTestBool(CPLGetConfigOption("GTIFF_IGNORE_READ_ERRORS", "NO"))),
94 32526 : 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 97547 : 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 32522 : CPLGetConfigOption("GTIFF_VIRTUAL_MEM_IO", "NO");
109 32525 : if (EQUAL(pszVirtualMemIO, "IF_ENOUGH_RAM"))
110 0 : m_eVirtualMemIOUsage = VirtualMemIOEnum::IF_ENOUGH_RAM;
111 32525 : else if (CPLTestBool(pszVirtualMemIO))
112 41 : m_eVirtualMemIOUsage = VirtualMemIOEnum::YES;
113 :
114 32523 : m_oSRS.SetAxisMappingStrategy(OAMS_TRADITIONAL_GIS_ORDER);
115 32234 : }
116 :
117 : /************************************************************************/
118 : /* ~GTiffDataset() */
119 : /************************************************************************/
120 :
121 65044 : GTiffDataset::~GTiffDataset()
122 :
123 : {
124 32522 : GTiffDataset::Close();
125 65047 : }
126 :
127 : /************************************************************************/
128 : /* Close() */
129 : /************************************************************************/
130 :
131 58381 : CPLErr GTiffDataset::Close()
132 : {
133 58381 : if (nOpenFlags != OPEN_FLAGS_CLOSED)
134 : {
135 32525 : auto [eErr, bDroppedRef] = Finalize();
136 :
137 32520 : if (m_pszTmpFilename)
138 : {
139 4 : VSIUnlink(m_pszTmpFilename);
140 4 : CPLFree(m_pszTmpFilename);
141 : }
142 :
143 32520 : if (GDALPamDataset::Close() != CE_None)
144 0 : eErr = CE_Failure;
145 32519 : return eErr;
146 : }
147 25856 : 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 32597 : std::tuple<CPLErr, bool> GTiffDataset::Finalize()
157 : {
158 32597 : bool bDroppedRef = false;
159 32597 : if (m_bIsFinalized)
160 144 : return std::tuple(CE_None, bDroppedRef);
161 :
162 32525 : CPLErr eErr = CE_None;
163 32525 : Crystalize();
164 :
165 32525 : 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 32525 : 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 32525 : if (m_psVirtualMemIOMapping)
184 11 : CPLVirtualMemFree(m_psVirtualMemIOMapping);
185 32525 : m_psVirtualMemIOMapping = nullptr;
186 :
187 : /* -------------------------------------------------------------------- */
188 : /* Fill in missing blocks with empty data. */
189 : /* -------------------------------------------------------------------- */
190 32525 : if (m_bFillEmptyTilesAtClosing)
191 : {
192 : /* --------------------------------------------------------------------
193 : */
194 : /* Ensure any blocks write cached by GDAL gets pushed through libtiff.
195 : */
196 : /* --------------------------------------------------------------------
197 : */
198 7726 : if (FlushCacheInternal(true, /* at closing */
199 7726 : false /* do not call FlushDirectory */) !=
200 : CE_None)
201 : {
202 0 : eErr = CE_Failure;
203 : }
204 :
205 7726 : if (FillEmptyTiles() != CE_None)
206 : {
207 9 : eErr = CE_Failure;
208 : }
209 7726 : 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 32525 : if (FlushCacheInternal(true /* at closing */, true) != CE_None)
217 : {
218 7 : eErr = CE_Failure;
219 : }
220 :
221 : // Destroy compression queue
222 32523 : if (m_poCompressQueue)
223 : {
224 58 : m_poCompressQueue->WaitCompletion();
225 :
226 280 : for (int i = 0; i < static_cast<int>(m_asCompressionJobs.size()); ++i)
227 : {
228 222 : CPLFree(m_asCompressionJobs[i].pabyBuffer);
229 222 : if (m_asCompressionJobs[i].pszTmpFilename)
230 : {
231 222 : VSIUnlink(m_asCompressionJobs[i].pszTmpFilename);
232 222 : CPLFree(m_asCompressionJobs[i].pszTmpFilename);
233 : }
234 : }
235 58 : 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 32524 : 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 32524 : 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 30730 : const int nOldOverviewCount = m_nOverviewCount;
258 30730 : m_nOverviewCount = 0;
259 32160 : for (int i = 0; i < nOldOverviewCount; ++i)
260 : {
261 1430 : delete m_papoOverviewDS[i];
262 1430 : bDroppedRef = true;
263 : }
264 :
265 30788 : for (int i = 0; i < m_nJPEGOverviewCountOri; ++i)
266 : {
267 60 : delete m_papoJPEGOverviewDS[i];
268 58 : bDroppedRef = true;
269 : }
270 30728 : m_nJPEGOverviewCount = 0;
271 30728 : m_nJPEGOverviewCountOri = 0;
272 30728 : CPLFree(m_papoJPEGOverviewDS);
273 30726 : 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 32520 : CPLFree(m_papoOverviewDS);
279 32523 : 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 32523 : 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)
289 360 : auto poMaskDS = m_poMaskDS;
290 360 : m_poMaskDS = nullptr;
291 360 : delete poMaskDS;
292 360 : bDroppedRef = true;
293 : }
294 :
295 32523 : m_poColorTable.reset();
296 :
297 32520 : if (m_hTIFF)
298 : {
299 32517 : XTIFFClose(m_hTIFF);
300 32522 : m_hTIFF = nullptr;
301 : }
302 :
303 32525 : if (!m_poBaseDS)
304 : {
305 30728 : if (m_fpL != nullptr)
306 : {
307 30728 : if (m_bWriteKnownIncompatibleEdition)
308 : {
309 : GByte abyHeader[4096];
310 11 : VSIFSeekL(m_fpL, 0, SEEK_SET);
311 11 : VSIFReadL(abyHeader, 1, sizeof(abyHeader), m_fpL);
312 11 : const char *szKeyToLook =
313 : "KNOWN_INCOMPATIBLE_EDITION=NO\n "; // trailing space
314 : // intended
315 1771 : for (size_t i = 0; i < sizeof(abyHeader) - strlen(szKeyToLook);
316 : i++)
317 : {
318 1771 : if (memcmp(abyHeader + i, szKeyToLook,
319 : strlen(szKeyToLook)) == 0)
320 : {
321 11 : const char *szNewKey =
322 : "KNOWN_INCOMPATIBLE_EDITION=YES\n";
323 11 : CPLAssert(strlen(szKeyToLook) == strlen(szNewKey));
324 11 : memcpy(abyHeader + i, szNewKey, strlen(szNewKey));
325 11 : VSIFSeekL(m_fpL, 0, SEEK_SET);
326 11 : VSIFWriteL(abyHeader, 1, sizeof(abyHeader), m_fpL);
327 11 : break;
328 : }
329 : }
330 : }
331 30728 : if (VSIFCloseL(m_fpL) != 0)
332 : {
333 0 : eErr = CE_Failure;
334 0 : ReportError(CE_Failure, CPLE_FileIO, "I/O error");
335 : }
336 30730 : m_fpL = nullptr;
337 : }
338 : }
339 :
340 32527 : 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 32527 : m_aoGCPs.clear();
351 :
352 32523 : CSLDestroy(m_papszCreationOptions);
353 32526 : m_papszCreationOptions = nullptr;
354 :
355 32526 : CPLFree(m_pabyTempWriteBuffer);
356 32523 : m_pabyTempWriteBuffer = nullptr;
357 :
358 32523 : m_bIMDRPCMetadataLoaded = false;
359 32523 : CSLDestroy(m_papszMetadataFiles);
360 32523 : m_papszMetadataFiles = nullptr;
361 :
362 32523 : VSIFree(m_pTempBufferForCommonDirectIO);
363 32522 : m_pTempBufferForCommonDirectIO = nullptr;
364 :
365 32522 : CPLFree(m_panMaskOffsetLsb);
366 32523 : m_panMaskOffsetLsb = nullptr;
367 :
368 32523 : CPLFree(m_pszVertUnit);
369 32523 : m_pszVertUnit = nullptr;
370 :
371 32523 : CPLFree(m_pszFilename);
372 32526 : m_pszFilename = nullptr;
373 :
374 32526 : CPLFree(m_pszGeorefFilename);
375 32525 : m_pszGeorefFilename = nullptr;
376 :
377 32525 : CPLFree(m_pszXMLFilename);
378 32525 : m_pszXMLFilename = nullptr;
379 :
380 32525 : m_bIsFinalized = true;
381 :
382 32525 : return std::tuple(eErr, bDroppedRef);
383 : }
384 :
385 : /************************************************************************/
386 : /* CloseDependentDatasets() */
387 : /************************************************************************/
388 :
389 72 : int GTiffDataset::CloseDependentDatasets()
390 : {
391 72 : if (m_poBaseDS)
392 0 : return FALSE;
393 :
394 72 : 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 72 : auto [eErr, bHasDroppedRefInFinalize] = Finalize();
399 72 : if (bHasDroppedRefInFinalize)
400 1 : bHasDroppedRef = true;
401 :
402 72 : 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 437583 : 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 437583 : if (nBufXSize < nXSize && nBufYSize < nYSize)
442 : {
443 157850 : int bTried = FALSE;
444 157850 : if (psExtraArg->eResampleAlg == GRIORA_NearestNeighbour)
445 157698 : ++m_nJPEGOverviewVisibilityCounter;
446 157850 : const CPLErr eErr = TryOverviewRasterIO(
447 : eRWFlag, nXOff, nYOff, nXSize, nYSize, pData, nBufXSize, nBufYSize,
448 : eBufType, nBandCount, panBandMap, nPixelSpace, nLineSpace,
449 : nBandSpace, psExtraArg, &bTried);
450 157850 : if (psExtraArg->eResampleAlg == GRIORA_NearestNeighbour)
451 157698 : --m_nJPEGOverviewVisibilityCounter;
452 157850 : if (bTried)
453 22 : return eErr;
454 : }
455 :
456 437561 : 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 436953 : 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 436539 : bool bCanUseMultiThreadedRead = false;
476 436539 : if (m_nDisableMultiThreadedRead == 0 && m_poThreadPool &&
477 873226 : eRWFlag == GF_Read && nBufXSize == nXSize && nBufYSize == nYSize &&
478 148 : IsMultiThreadedReadCompatible())
479 : {
480 148 : const int nBlockX1 = nXOff / m_nBlockXSize;
481 148 : const int nBlockY1 = nYOff / m_nBlockYSize;
482 148 : const int nBlockX2 = (nXOff + nXSize - 1) / m_nBlockXSize;
483 148 : const int nBlockY2 = (nYOff + nYSize - 1) / m_nBlockYSize;
484 148 : const int nXBlocks = nBlockX2 - nBlockX1 + 1;
485 148 : const int nYBlocks = nBlockY2 - nBlockY1 + 1;
486 148 : const size_t nBlocks =
487 148 : static_cast<size_t>(nXBlocks) * nYBlocks *
488 148 : (m_nPlanarConfig == PLANARCONFIG_CONTIG ? 1 : nBandCount);
489 148 : if (nBlocks > 1)
490 : {
491 145 : bCanUseMultiThreadedRead = true;
492 : }
493 : }
494 :
495 436539 : void *pBufferedData = nullptr;
496 436539 : const auto poFirstBand = cpl::down_cast<GTiffRasterBand *>(papoBands[0]);
497 436539 : const auto eDataType = poFirstBand->GetRasterDataType();
498 :
499 38388 : if (eAccess == GA_ReadOnly && eRWFlag == GF_Read &&
500 474945 : HasOptimizedReadMultiRange() &&
501 18 : !(bCanUseMultiThreadedRead &&
502 4 : 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 436524 : else if (bCanUseMultiThreadedRead)
519 : {
520 145 : return MultiThreadedRead(nXOff, nYOff, nXSize, nYSize, pData, eBufType,
521 : nBandCount, panBandMap, nPixelSpace,
522 145 : 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 204674 : else if (eRWFlag == GF_Write && nBands > 1 &&
530 30534 : m_nPlanarConfig == PLANARCONFIG_CONTIG &&
531 : // Could be extended to "odd bit" case, but more work
532 27475 : m_nBitsPerSample == GDALGetDataTypeSizeBits(eDataType) &&
533 27464 : nXSize == nBufXSize && nYSize == nBufYSize &&
534 27462 : nBandCount == nBands && !m_bLoadedBlockDirty &&
535 27440 : (nXOff % m_nBlockXSize) == 0 && (nYOff % m_nBlockYSize) == 0 &&
536 1697 : (nXOff + nXSize == nRasterXSize ||
537 641093 : (nXSize % m_nBlockXSize) == 0) &&
538 1694 : (nYOff + nYSize == nRasterYSize || (nYSize % m_nBlockYSize) == 0))
539 : {
540 1572 : bool bOptimOK = true;
541 1572 : bool bOrderedBands = true;
542 6552 : for (int i = 0; i < nBands; ++i)
543 : {
544 5009 : if (panBandMap[i] != i + 1)
545 : {
546 26 : bOrderedBands = false;
547 : }
548 10018 : if (cpl::down_cast<GTiffRasterBand *>(papoBands[panBandMap[i] - 1])
549 5009 : ->HasBlockCache())
550 : {
551 29 : bOptimOK = false;
552 29 : break;
553 : }
554 : }
555 1572 : if (bOptimOK)
556 : {
557 1543 : Crystalize();
558 :
559 1543 : if (m_bDebugDontWriteBlocks)
560 0 : return CE_None;
561 :
562 1543 : const int nDTSize = GDALGetDataTypeSizeBytes(eDataType);
563 1543 : if (bOrderedBands && nXSize == m_nBlockXSize &&
564 1341 : nYSize == m_nBlockYSize && eBufType == eDataType &&
565 1170 : nBandSpace == nDTSize &&
566 15 : 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 1538 : if (LoadBlockBuf(/* nBlockId = */ -1,
581 1538 : /* 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 1538 : const int nYBlockStart = nYOff / m_nBlockYSize;
592 1538 : const int nYBlockEnd = 1 + (nYOff + nYSize - 1) / m_nBlockYSize;
593 1538 : const int nXBlockStart = nXOff / m_nBlockXSize;
594 1538 : const int nXBlockEnd = 1 + (nXOff + nXSize - 1) / m_nBlockXSize;
595 17727 : for (int nYBlock = nYBlockStart; nYBlock < nYBlockEnd; ++nYBlock)
596 : {
597 : const int nValidY = std::min(
598 16193 : m_nBlockYSize, nRasterYSize - nYBlock * m_nBlockYSize);
599 34663 : for (int nXBlock = nXBlockStart; nXBlock < nXBlockEnd;
600 : ++nXBlock)
601 : {
602 : const int nValidX = std::min(
603 18474 : m_nBlockXSize, nRasterXSize - nXBlock * m_nBlockXSize);
604 18474 : 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.
608 331 : memset(m_pabyBlockBuf, 0,
609 331 : static_cast<size_t>(m_nBlockXSize) *
610 331 : m_nBlockYSize * nBands * nDTSize);
611 : }
612 18474 : const auto nBufDTSize = GDALGetDataTypeSizeBytes(eBufType);
613 18474 : const GByte *pabySrcData =
614 : static_cast<const GByte *>(pData) +
615 18474 : static_cast<size_t>(nYBlock - nYBlockStart) *
616 18474 : m_nBlockYSize * nLineSpace +
617 18474 : static_cast<size_t>(nXBlock - nXBlockStart) *
618 18474 : m_nBlockXSize * nPixelSpace;
619 18474 : if (bOrderedBands && nBandSpace == nBufDTSize &&
620 16 : 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 75723 : for (int iBand = 0; iBand < nBands; ++iBand)
640 : {
641 1749720 : for (int iY = 0; iY < nValidY; ++iY)
642 : {
643 1692460 : GDALCopyWords64(
644 1692460 : pabySrcData +
645 1692460 : static_cast<size_t>(iY) * nLineSpace,
646 : eBufType, static_cast<int>(nPixelSpace),
647 1692460 : m_pabyBlockBuf +
648 1692460 : (panBandMap[iBand] - 1 +
649 1692460 : static_cast<size_t>(iY) *
650 1692460 : m_nBlockXSize * nBands) *
651 1692460 : nDTSize,
652 1692460 : eDataType, nDTSize * nBands, nValidX);
653 : }
654 57250 : pabySrcData += nBandSpace;
655 : }
656 : }
657 :
658 : const int nBlockId =
659 18474 : poFirstBand->ComputeBlockId(nXBlock, nYBlock);
660 36948 : if (WriteEncodedTileOrStrip(
661 18474 : nBlockId, m_pabyBlockBuf,
662 18474 : /* bPreserveDataBuffer= */ false) != CE_None)
663 : {
664 4 : return CE_Failure;
665 : }
666 : }
667 : }
668 1534 : return CE_None;
669 : }
670 : }
671 :
672 434850 : if (psExtraArg->eResampleAlg == GRIORA_NearestNeighbour)
673 434691 : ++m_nJPEGOverviewVisibilityCounter;
674 434850 : const CPLErr eErr = GDALPamDataset::IRasterIO(
675 : eRWFlag, nXOff, nYOff, nXSize, nYSize, pData, nBufXSize, nBufYSize,
676 : eBufType, nBandCount, panBandMap, nPixelSpace, nLineSpace, nBandSpace,
677 : psExtraArg);
678 434851 : if (psExtraArg->eResampleAlg == GRIORA_NearestNeighbour)
679 434691 : m_nJPEGOverviewVisibilityCounter--;
680 :
681 434851 : if (pBufferedData)
682 : {
683 8 : VSIFree(pBufferedData);
684 8 : VSI_TIFFSetCachedRanges(TIFFClientdata(m_hTIFF), 0, nullptr, nullptr,
685 : nullptr);
686 : }
687 :
688 434851 : return eErr;
689 : }
690 :
691 : /************************************************************************/
692 : /* GetGTIFFKeysFlavor() */
693 : /************************************************************************/
694 :
695 32021 : GTIFFKeysFlavorEnum GetGTIFFKeysFlavor(CSLConstList papszOptions)
696 : {
697 : const char *pszGeoTIFFKeysFlavor =
698 32021 : CSLFetchNameValueDef(papszOptions, "GEOTIFF_KEYS_FLAVOR", "STANDARD");
699 32026 : if (EQUAL(pszGeoTIFFKeysFlavor, "ESRI_PE"))
700 1 : return GEOTIFF_KEYS_ESRI_PE;
701 32025 : return GEOTIFF_KEYS_STANDARD;
702 : }
703 :
704 : /************************************************************************/
705 : /* GetGeoTIFFVersion() */
706 : /************************************************************************/
707 :
708 31967 : GeoTIFFVersionEnum GetGeoTIFFVersion(CSLConstList papszOptions)
709 : {
710 : const char *pszVersion =
711 31967 : CSLFetchNameValueDef(papszOptions, "GEOTIFF_VERSION", "AUTO");
712 32007 : if (EQUAL(pszVersion, "1.0"))
713 3 : return GEOTIFF_VERSION_1_0;
714 32004 : if (EQUAL(pszVersion, "1.1"))
715 5 : return GEOTIFF_VERSION_1_1;
716 31999 : return GEOTIFF_VERSION_AUTO;
717 : }
718 :
719 : /************************************************************************/
720 : /* InitCreationOrOpenOptions() */
721 : /************************************************************************/
722 :
723 30479 : void GTiffDataset::InitCreationOrOpenOptions(bool bUpdateMode,
724 : CSLConstList papszOptions)
725 : {
726 30479 : InitCompressionThreads(bUpdateMode, papszOptions);
727 :
728 30466 : m_eGeoTIFFKeysFlavor = GetGTIFFKeysFlavor(papszOptions);
729 30456 : m_eGeoTIFFVersion = GetGeoTIFFVersion(papszOptions);
730 30379 : }
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 2300560 : bool GTiffDataset::IsBlockAvailable(int nBlockId, vsi_l_offset *pnOffset,
741 : vsi_l_offset *pnSize, bool *pbErrOccurred)
742 :
743 : {
744 2300560 : if (pbErrOccurred)
745 2250820 : *pbErrOccurred = false;
746 :
747 2300560 : std::pair<vsi_l_offset, vsi_l_offset> oPair;
748 2300560 : 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 2300000 : WaitCompletionForBlock(nBlockId);
758 :
759 : // Optimization to avoid fetching the whole Strip/TileCounts and
760 : // Strip/TileOffsets arrays.
761 2299950 : if (eAccess == GA_ReadOnly && !m_bStreamingIn)
762 : {
763 2178430 : int nErrOccurred = 0;
764 : auto bytecount =
765 2178430 : TIFFGetStrileByteCountWithErr(m_hTIFF, nBlockId, &nErrOccurred);
766 2178480 : if (nErrOccurred && pbErrOccurred)
767 1 : *pbErrOccurred = true;
768 2178480 : if (pnOffset)
769 : {
770 2135030 : *pnOffset =
771 2134940 : TIFFGetStrileOffsetWithErr(m_hTIFF, nBlockId, &nErrOccurred);
772 2135030 : if (nErrOccurred && pbErrOccurred)
773 3 : *pbErrOccurred = true;
774 : }
775 2178570 : if (pnSize)
776 12044 : *pnSize = bytecount;
777 2178570 : return bytecount != 0;
778 : }
779 :
780 121519 : if (!m_bCrystalized)
781 : {
782 : // If this is a fresh new file not yet crystalized, do not try to
783 : // read the [Strip|Tile][ByteCounts|Offsets] tags as they do not yet
784 : // exist. Trying would set *pbErrOccurred=true, which is not desirable.
785 2 : if (pnOffset)
786 2 : *pnOffset = 0;
787 2 : if (pnSize)
788 2 : *pnSize = 0;
789 2 : return false;
790 : }
791 :
792 121517 : toff_t *panByteCounts = nullptr;
793 121517 : toff_t *panOffsets = nullptr;
794 121517 : const bool bIsTiled = CPL_TO_BOOL(TIFFIsTiled(m_hTIFF));
795 :
796 155394 : if ((bIsTiled &&
797 33852 : TIFFGetField(m_hTIFF, TIFFTAG_TILEBYTECOUNTS, &panByteCounts) &&
798 25702 : (pnOffset == nullptr ||
799 243084 : TIFFGetField(m_hTIFF, TIFFTAG_TILEOFFSETS, &panOffsets))) ||
800 87690 : (!bIsTiled &&
801 87690 : TIFFGetField(m_hTIFF, TIFFTAG_STRIPBYTECOUNTS, &panByteCounts) &&
802 38659 : (pnOffset == nullptr ||
803 38659 : TIFFGetField(m_hTIFF, TIFFTAG_STRIPOFFSETS, &panOffsets))))
804 : {
805 121542 : if (panByteCounts == nullptr ||
806 64361 : (pnOffset != nullptr && panOffsets == nullptr))
807 : {
808 0 : if (pbErrOccurred)
809 0 : *pbErrOccurred = true;
810 0 : return false;
811 : }
812 : const int nBlockCount =
813 121542 : bIsTiled ? TIFFNumberOfTiles(m_hTIFF) : TIFFNumberOfStrips(m_hTIFF);
814 121542 : if (nBlockId >= nBlockCount)
815 : {
816 0 : if (pbErrOccurred)
817 0 : *pbErrOccurred = true;
818 0 : return false;
819 : }
820 :
821 121542 : if (pnOffset)
822 64361 : *pnOffset = panOffsets[nBlockId];
823 121542 : if (pnSize)
824 7147 : *pnSize = panByteCounts[nBlockId];
825 121542 : return panByteCounts[nBlockId] != 0;
826 : }
827 : else
828 : {
829 0 : if (pbErrOccurred)
830 0 : *pbErrOccurred = true;
831 : }
832 :
833 0 : return false;
834 : }
835 :
836 : /************************************************************************/
837 : /* ReloadDirectory() */
838 : /************************************************************************/
839 :
840 7407 : void GTiffDataset::ReloadDirectory(bool bReopenHandle)
841 : {
842 7407 : bool bNeedSetInvalidDir = true;
843 7407 : if (bReopenHandle)
844 : {
845 : // When issuing a TIFFRewriteDirectory() or when a TIFFFlush() has
846 : // caused a move of the directory, we would need to invalidate the
847 : // tif_lastdiroff member, but it is not possible to do so without
848 : // re-opening the TIFF handle.
849 9 : auto hTIFFNew = VSI_TIFFReOpen(m_hTIFF);
850 9 : if (hTIFFNew != nullptr)
851 : {
852 9 : m_hTIFF = hTIFFNew;
853 9 : bNeedSetInvalidDir = false; // we could do it, but not needed
854 : }
855 : else
856 : {
857 0 : CPLError(CE_Failure, CPLE_AppDefined,
858 : "Cannot re-open TIFF handle for file %s. "
859 : "Directory chaining may be corrupted !",
860 : m_pszFilename);
861 : }
862 : }
863 7407 : if (bNeedSetInvalidDir)
864 : {
865 7398 : TIFFSetSubDirectory(m_hTIFF, 0);
866 : }
867 7407 : CPL_IGNORE_RET_VAL(SetDirectory());
868 7407 : }
869 :
870 : /************************************************************************/
871 : /* SetDirectory() */
872 : /************************************************************************/
873 :
874 54806 : bool GTiffDataset::SetDirectory()
875 :
876 : {
877 54806 : Crystalize();
878 :
879 54810 : if (TIFFCurrentDirOffset(m_hTIFF) == m_nDirOffset)
880 : {
881 45458 : return true;
882 : }
883 :
884 9205 : const int nSetDirResult = TIFFSetSubDirectory(m_hTIFF, m_nDirOffset);
885 9205 : if (!nSetDirResult)
886 0 : return false;
887 :
888 9205 : RestoreVolatileParameters(m_hTIFF);
889 :
890 9205 : return true;
891 : }
892 :
893 : /************************************************************************/
894 : /* GTiffSetDeflateSubCodec() */
895 : /************************************************************************/
896 :
897 6449 : void GTiffSetDeflateSubCodec(TIFF *hTIFF)
898 : {
899 : (void)hTIFF;
900 :
901 : #if defined(TIFFTAG_DEFLATE_SUBCODEC) && defined(LIBDEFLATE_SUPPORT)
902 : // Mostly for strict reproducibility purposes
903 6449 : if (EQUAL(CPLGetConfigOption("GDAL_TIFF_DEFLATE_SUBCODEC", ""), "ZLIB"))
904 : {
905 4097 : TIFFSetField(hTIFF, TIFFTAG_DEFLATE_SUBCODEC, DEFLATE_SUBCODEC_ZLIB);
906 : }
907 : #endif
908 6449 : }
909 :
910 : /************************************************************************/
911 : /* RestoreVolatileParameters() */
912 : /************************************************************************/
913 :
914 44258 : void GTiffDataset::RestoreVolatileParameters(TIFF *hTIFF)
915 : {
916 :
917 : /* -------------------------------------------------------------------- */
918 : /* YCbCr JPEG compressed images should be translated on the fly */
919 : /* to RGB by libtiff/libjpeg unless specifically requested */
920 : /* otherwise. */
921 : /* -------------------------------------------------------------------- */
922 88944 : if (m_nCompression == COMPRESSION_JPEG &&
923 44543 : m_nPhotometric == PHOTOMETRIC_YCBCR &&
924 285 : CPLTestBool(CPLGetConfigOption("CONVERT_YCBCR_TO_RGB", "YES")))
925 : {
926 285 : int nColorMode = JPEGCOLORMODE_RAW; // Initialize to 0;
927 :
928 285 : TIFFGetField(hTIFF, TIFFTAG_JPEGCOLORMODE, &nColorMode);
929 285 : if (nColorMode != JPEGCOLORMODE_RGB)
930 : {
931 251 : TIFFSetField(hTIFF, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB);
932 : }
933 : }
934 :
935 44258 : if (m_nCompression == COMPRESSION_ADOBE_DEFLATE ||
936 38418 : m_nCompression == COMPRESSION_LERC)
937 : {
938 6077 : GTiffSetDeflateSubCodec(hTIFF);
939 : }
940 :
941 : /* -------------------------------------------------------------------- */
942 : /* Propagate any quality settings. */
943 : /* -------------------------------------------------------------------- */
944 44258 : if (eAccess == GA_Update)
945 : {
946 : // Now, reset zip and jpeg quality.
947 37562 : if (m_nJpegQuality > 0 && m_nCompression == COMPRESSION_JPEG)
948 : {
949 : #ifdef DEBUG_VERBOSE
950 : CPLDebug("GTiff", "Propagate JPEG_QUALITY(%d) in SetDirectory()",
951 : m_nJpegQuality);
952 : #endif
953 185 : TIFFSetField(hTIFF, TIFFTAG_JPEGQUALITY, m_nJpegQuality);
954 : }
955 37562 : if (m_nJpegTablesMode >= 0 && m_nCompression == COMPRESSION_JPEG)
956 326 : TIFFSetField(hTIFF, TIFFTAG_JPEGTABLESMODE, m_nJpegTablesMode);
957 37562 : if (m_nZLevel > 0 && (m_nCompression == COMPRESSION_ADOBE_DEFLATE ||
958 12 : m_nCompression == COMPRESSION_LERC))
959 26 : TIFFSetField(hTIFF, TIFFTAG_ZIPQUALITY, m_nZLevel);
960 37562 : if (m_nLZMAPreset > 0 && m_nCompression == COMPRESSION_LZMA)
961 8 : TIFFSetField(hTIFF, TIFFTAG_LZMAPRESET, m_nLZMAPreset);
962 37562 : if (m_nZSTDLevel > 0 && (m_nCompression == COMPRESSION_ZSTD ||
963 12 : m_nCompression == COMPRESSION_LERC))
964 18 : TIFFSetField(hTIFF, TIFFTAG_ZSTD_LEVEL, m_nZSTDLevel);
965 37562 : if (m_nCompression == COMPRESSION_LERC)
966 : {
967 185 : TIFFSetField(hTIFF, TIFFTAG_LERC_MAXZERROR, m_dfMaxZError);
968 : }
969 37562 : if (m_nWebPLevel > 0 && m_nCompression == COMPRESSION_WEBP)
970 124 : TIFFSetField(hTIFF, TIFFTAG_WEBP_LEVEL, m_nWebPLevel);
971 37562 : if (m_bWebPLossless && m_nCompression == COMPRESSION_WEBP)
972 50 : TIFFSetField(hTIFF, TIFFTAG_WEBP_LOSSLESS, 1);
973 : #ifdef HAVE_JXL
974 37562 : if (m_nCompression == COMPRESSION_JXL ||
975 37561 : m_nCompression == COMPRESSION_JXL_DNG_1_7)
976 : {
977 76 : TIFFSetField(hTIFF, TIFFTAG_JXL_LOSSYNESS,
978 76 : m_bJXLLossless ? JXL_LOSSLESS : JXL_LOSSY);
979 76 : TIFFSetField(hTIFF, TIFFTAG_JXL_EFFORT, m_nJXLEffort);
980 76 : TIFFSetField(hTIFF, TIFFTAG_JXL_DISTANCE, m_fJXLDistance);
981 76 : TIFFSetField(hTIFF, TIFFTAG_JXL_ALPHA_DISTANCE,
982 76 : m_fJXLAlphaDistance);
983 : }
984 : #endif
985 : }
986 44258 : }
987 :
988 : /************************************************************************/
989 : /* ComputeBlocksPerColRowAndBand() */
990 : /************************************************************************/
991 :
992 32367 : bool GTiffDataset::ComputeBlocksPerColRowAndBand(int l_nBands)
993 : {
994 32367 : m_nBlocksPerColumn = DIV_ROUND_UP(nRasterYSize, m_nBlockYSize);
995 32367 : m_nBlocksPerRow = DIV_ROUND_UP(nRasterXSize, m_nBlockXSize);
996 32367 : if (m_nBlocksPerColumn > INT_MAX / m_nBlocksPerRow)
997 : {
998 1 : ReportError(CE_Failure, CPLE_AppDefined, "Too many blocks: %d x %d",
999 : m_nBlocksPerRow, m_nBlocksPerColumn);
1000 1 : return false;
1001 : }
1002 :
1003 : // Note: we could potentially go up to UINT_MAX blocks, but currently
1004 : // we use a int nBlockId
1005 32366 : m_nBlocksPerBand = m_nBlocksPerColumn * m_nBlocksPerRow;
1006 32366 : if (m_nPlanarConfig == PLANARCONFIG_SEPARATE &&
1007 4021 : m_nBlocksPerBand > INT_MAX / l_nBands)
1008 : {
1009 1 : ReportError(CE_Failure, CPLE_AppDefined,
1010 : "Too many blocks: %d x %d x %d bands", m_nBlocksPerRow,
1011 : m_nBlocksPerColumn, l_nBands);
1012 1 : return false;
1013 : }
1014 32365 : return true;
1015 : }
1016 :
1017 : /************************************************************************/
1018 : /* SetStructuralMDFromParent() */
1019 : /************************************************************************/
1020 :
1021 1148 : void GTiffDataset::SetStructuralMDFromParent(GTiffDataset *poParentDS)
1022 : {
1023 1148 : m_bBlockOrderRowMajor = poParentDS->m_bBlockOrderRowMajor;
1024 1148 : m_bLeaderSizeAsUInt4 = poParentDS->m_bLeaderSizeAsUInt4;
1025 1148 : m_bTrailerRepeatedLast4BytesRepeated =
1026 1148 : poParentDS->m_bTrailerRepeatedLast4BytesRepeated;
1027 1148 : m_bMaskInterleavedWithImagery = poParentDS->m_bMaskInterleavedWithImagery;
1028 1148 : m_bWriteEmptyTiles = poParentDS->m_bWriteEmptyTiles;
1029 1148 : m_bTileInterleave = poParentDS->m_bTileInterleave;
1030 1148 : }
1031 :
1032 : /************************************************************************/
1033 : /* ScanDirectories() */
1034 : /* */
1035 : /* Scan through all the directories finding overviews, masks */
1036 : /* and subdatasets. */
1037 : /************************************************************************/
1038 :
1039 1532320 : void GTiffDataset::ScanDirectories()
1040 :
1041 : {
1042 : /* -------------------------------------------------------------------- */
1043 : /* We only scan once. We do not scan for non-base datasets. */
1044 : /* -------------------------------------------------------------------- */
1045 1532320 : if (!m_bScanDeferred)
1046 1525610 : return;
1047 :
1048 7039 : m_bScanDeferred = false;
1049 :
1050 7039 : if (m_poBaseDS)
1051 330 : return;
1052 :
1053 6709 : Crystalize();
1054 :
1055 6731 : CPLDebug("GTiff", "ScanDirectories()");
1056 :
1057 : /* ==================================================================== */
1058 : /* Scan all directories. */
1059 : /* ==================================================================== */
1060 13462 : CPLStringList aosSubdatasets;
1061 6731 : int iDirIndex = 0;
1062 :
1063 6731 : FlushDirectory();
1064 :
1065 1136 : do
1066 : {
1067 7867 : toff_t nTopDir = TIFFCurrentDirOffset(m_hTIFF);
1068 7867 : uint32_t nSubType = 0;
1069 :
1070 7867 : ++iDirIndex;
1071 :
1072 7867 : toff_t *tmpSubIFDOffsets = nullptr;
1073 7867 : toff_t *subIFDOffsets = nullptr;
1074 7867 : uint16_t nSubIFDs = 0;
1075 7867 : if (TIFFGetField(m_hTIFF, TIFFTAG_SUBIFD, &nSubIFDs,
1076 7867 : &tmpSubIFDOffsets) &&
1077 : iDirIndex == 1)
1078 : {
1079 : subIFDOffsets =
1080 13 : static_cast<toff_t *>(CPLMalloc(nSubIFDs * sizeof(toff_t)));
1081 39 : for (uint16_t iSubIFD = 0; iSubIFD < nSubIFDs; iSubIFD++)
1082 : {
1083 26 : subIFDOffsets[iSubIFD] = tmpSubIFDOffsets[iSubIFD];
1084 : }
1085 : }
1086 :
1087 : // early break for backwards compatibility: if the first directory read
1088 : // is also the last, and there are no subIFDs, no use continuing
1089 7867 : if (iDirIndex == 1 && nSubIFDs == 0 && TIFFLastDirectory(m_hTIFF))
1090 : {
1091 6059 : CPLFree(subIFDOffsets);
1092 6059 : break;
1093 : }
1094 :
1095 3642 : for (uint16_t iSubIFD = 0; iSubIFD <= nSubIFDs; iSubIFD++)
1096 : {
1097 1842 : toff_t nThisDir = nTopDir;
1098 1842 : if (iSubIFD > 0 && iDirIndex > 1) // don't read subIFDs if we are
1099 : // not in the original directory
1100 8 : break;
1101 1834 : if (iSubIFD > 0)
1102 : {
1103 : // make static analyzer happy. subIFDOffsets cannot be null if
1104 : // iSubIFD>0
1105 26 : assert(subIFDOffsets != nullptr);
1106 26 : nThisDir = subIFDOffsets[iSubIFD - 1];
1107 : // CPLDebug("GTiff", "Opened subIFD %d/%d at offset %llu.",
1108 : // iSubIFD, nSubIFDs, nThisDir);
1109 26 : if (!TIFFSetSubDirectory(m_hTIFF, nThisDir))
1110 0 : break;
1111 : }
1112 :
1113 1834 : if (!TIFFGetField(m_hTIFF, TIFFTAG_SUBFILETYPE, &nSubType))
1114 421 : nSubType = 0;
1115 :
1116 : /* Embedded overview of the main image */
1117 1834 : if ((nSubType & FILETYPE_REDUCEDIMAGE) != 0 &&
1118 1302 : (nSubType & FILETYPE_MASK) == 0 &&
1119 1196 : ((nSubIFDs == 0 && iDirIndex != 1) || iSubIFD > 0) &&
1120 931 : m_nOverviewCount < 30 /* to avoid DoS */)
1121 : {
1122 931 : GTiffDataset *poODS = new GTiffDataset();
1123 931 : poODS->ShareLockWithParentDataset(this);
1124 931 : poODS->SetStructuralMDFromParent(this);
1125 931 : if (m_bHasGotSiblingFiles)
1126 171 : poODS->oOvManager.TransferSiblingFiles(
1127 : CSLDuplicate(GetSiblingFiles()));
1128 931 : poODS->m_pszFilename = CPLStrdup(m_pszFilename);
1129 931 : poODS->m_nColorTableMultiplier = m_nColorTableMultiplier;
1130 931 : if (poODS->OpenOffset(VSI_TIFFOpenChild(m_hTIFF), nThisDir,
1131 1862 : eAccess) != CE_None ||
1132 931 : poODS->GetRasterCount() != GetRasterCount())
1133 : {
1134 0 : delete poODS;
1135 : }
1136 : else
1137 : {
1138 931 : CPLDebug("GTiff", "Opened %dx%d overview.",
1139 : poODS->GetRasterXSize(), poODS->GetRasterYSize());
1140 931 : ++m_nOverviewCount;
1141 1862 : m_papoOverviewDS = static_cast<GTiffDataset **>(CPLRealloc(
1142 931 : m_papoOverviewDS, m_nOverviewCount * (sizeof(void *))));
1143 931 : m_papoOverviewDS[m_nOverviewCount - 1] = poODS;
1144 931 : poODS->m_poBaseDS = this;
1145 931 : poODS->m_bIsOverview = true;
1146 :
1147 : // Propagate a few compression related settings that are
1148 : // no preserved at the TIFF tag level, but may be set in
1149 : // the GDAL_METADATA tag in the IMAGE_STRUCTURE domain
1150 : // Note: this might not be totally reflecting the reality
1151 : // if users have created overviews with different settings
1152 : // but this is probably better than the default ones
1153 931 : poODS->m_nWebPLevel = m_nWebPLevel;
1154 : // below is not a copy & paste error: we transfer the
1155 : // m_dfMaxZErrorOverview overview of the parent to
1156 : // m_dfMaxZError of the overview
1157 931 : poODS->m_dfMaxZError = m_dfMaxZErrorOverview;
1158 931 : poODS->m_dfMaxZErrorOverview = m_dfMaxZErrorOverview;
1159 : #if HAVE_JXL
1160 931 : poODS->m_bJXLLossless = m_bJXLLossless;
1161 931 : poODS->m_fJXLDistance = m_fJXLDistance;
1162 931 : poODS->m_fJXLAlphaDistance = m_fJXLAlphaDistance;
1163 931 : poODS->m_nJXLEffort = m_nJXLEffort;
1164 : #endif
1165 : // Those ones are not serialized currently..
1166 : // poODS->m_nZLevel = m_nZLevel;
1167 : // poODS->m_nLZMAPreset = m_nLZMAPreset;
1168 : // poODS->m_nZSTDLevel = m_nZSTDLevel;
1169 931 : }
1170 : }
1171 : // Embedded mask of the main image.
1172 903 : else if ((nSubType & FILETYPE_MASK) != 0 &&
1173 217 : (nSubType & FILETYPE_REDUCEDIMAGE) == 0 &&
1174 111 : ((nSubIFDs == 0 && iDirIndex != 1) || iSubIFD > 0) &&
1175 111 : m_poMaskDS == nullptr)
1176 : {
1177 111 : m_poMaskDS = new GTiffDataset();
1178 111 : m_poMaskDS->ShareLockWithParentDataset(this);
1179 111 : m_poMaskDS->SetStructuralMDFromParent(this);
1180 111 : m_poMaskDS->m_pszFilename = CPLStrdup(m_pszFilename);
1181 :
1182 : // The TIFF6 specification - page 37 - only allows 1
1183 : // SamplesPerPixel and 1 BitsPerSample Here we support either 1
1184 : // or 8 bit per sample and we support either 1 sample per pixel
1185 : // or as many samples as in the main image We don't check the
1186 : // value of the PhotometricInterpretation tag, which should be
1187 : // set to "Transparency mask" (4) according to the specification
1188 : // (page 36). However, the TIFF6 specification allows image
1189 : // masks to have a higher resolution than the main image, what
1190 : // we don't support here.
1191 :
1192 111 : if (m_poMaskDS->OpenOffset(VSI_TIFFOpenChild(m_hTIFF), nThisDir,
1193 111 : eAccess) != CE_None ||
1194 111 : m_poMaskDS->GetRasterCount() == 0 ||
1195 111 : !(m_poMaskDS->GetRasterCount() == 1 ||
1196 3 : m_poMaskDS->GetRasterCount() == GetRasterCount()) ||
1197 111 : m_poMaskDS->GetRasterXSize() != GetRasterXSize() ||
1198 333 : m_poMaskDS->GetRasterYSize() != GetRasterYSize() ||
1199 111 : m_poMaskDS->GetRasterBand(1)->GetRasterDataType() !=
1200 : GDT_Byte)
1201 : {
1202 0 : delete m_poMaskDS;
1203 0 : m_poMaskDS = nullptr;
1204 : }
1205 : else
1206 : {
1207 111 : CPLDebug("GTiff", "Opened band mask.");
1208 111 : m_poMaskDS->m_poBaseDS = this;
1209 111 : m_poMaskDS->m_poImageryDS = this;
1210 :
1211 222 : m_poMaskDS->m_bPromoteTo8Bits =
1212 111 : CPLTestBool(CPLGetConfigOption(
1213 : "GDAL_TIFF_INTERNAL_MASK_TO_8BIT", "YES"));
1214 : }
1215 : }
1216 :
1217 : // Embedded mask of an overview. The TIFF6 specification allows the
1218 : // combination of the FILETYPE_xxxx masks.
1219 792 : else if ((nSubType & FILETYPE_REDUCEDIMAGE) != 0 &&
1220 371 : (nSubType & FILETYPE_MASK) != 0 &&
1221 106 : ((nSubIFDs == 0 && iDirIndex != 1) || iSubIFD > 0))
1222 : {
1223 106 : GTiffDataset *poDS = new GTiffDataset();
1224 106 : poDS->ShareLockWithParentDataset(this);
1225 106 : poDS->SetStructuralMDFromParent(this);
1226 106 : poDS->m_pszFilename = CPLStrdup(m_pszFilename);
1227 106 : if (poDS->OpenOffset(VSI_TIFFOpenChild(m_hTIFF), nThisDir,
1228 106 : eAccess) != CE_None ||
1229 212 : poDS->GetRasterCount() == 0 ||
1230 106 : poDS->GetRasterBand(1)->GetRasterDataType() != GDT_Byte)
1231 : {
1232 0 : delete poDS;
1233 : }
1234 : else
1235 : {
1236 106 : int i = 0; // Used after for.
1237 158 : for (; i < m_nOverviewCount; ++i)
1238 : {
1239 158 : auto poOvrDS = cpl::down_cast<GTiffDataset *>(
1240 158 : GDALDataset::FromHandle(m_papoOverviewDS[i]));
1241 422 : if (poOvrDS->m_poMaskDS == nullptr &&
1242 106 : poDS->GetRasterXSize() ==
1243 106 : m_papoOverviewDS[i]->GetRasterXSize() &&
1244 106 : poDS->GetRasterYSize() ==
1245 370 : m_papoOverviewDS[i]->GetRasterYSize() &&
1246 106 : (poDS->GetRasterCount() == 1 ||
1247 0 : poDS->GetRasterCount() == GetRasterCount()))
1248 : {
1249 106 : CPLDebug(
1250 : "GTiff", "Opened band mask for %dx%d overview.",
1251 : poDS->GetRasterXSize(), poDS->GetRasterYSize());
1252 106 : poDS->m_poImageryDS = poOvrDS;
1253 106 : poOvrDS->m_poMaskDS = poDS;
1254 106 : poDS->m_bPromoteTo8Bits =
1255 106 : CPLTestBool(CPLGetConfigOption(
1256 : "GDAL_TIFF_INTERNAL_MASK_TO_8BIT", "YES"));
1257 106 : poDS->m_poBaseDS = this;
1258 106 : break;
1259 : }
1260 : }
1261 106 : if (i == m_nOverviewCount)
1262 : {
1263 0 : delete poDS;
1264 : }
1265 106 : }
1266 : }
1267 686 : else if (!m_bSingleIFDOpened &&
1268 681 : (nSubType == 0 || nSubType == FILETYPE_PAGE))
1269 : {
1270 416 : uint32_t nXSize = 0;
1271 416 : uint32_t nYSize = 0;
1272 :
1273 416 : TIFFGetField(m_hTIFF, TIFFTAG_IMAGEWIDTH, &nXSize);
1274 416 : TIFFGetField(m_hTIFF, TIFFTAG_IMAGELENGTH, &nYSize);
1275 :
1276 : // For Geodetic TIFF grids (GTG)
1277 : // (https://proj.org/specifications/geodetictiffgrids.html)
1278 : // extract the grid_name to put it in the description
1279 832 : std::string osFriendlyName;
1280 416 : char *pszText = nullptr;
1281 483 : if (TIFFGetField(m_hTIFF, TIFFTAG_GDAL_METADATA, &pszText) &&
1282 67 : strstr(pszText, "grid_name") != nullptr)
1283 : {
1284 4 : CPLXMLNode *psRoot = CPLParseXMLString(pszText);
1285 : const CPLXMLNode *psItem =
1286 4 : psRoot ? CPLGetXMLNode(psRoot, "=GDALMetadata")
1287 4 : : nullptr;
1288 4 : if (psItem)
1289 4 : psItem = psItem->psChild;
1290 4 : for (; psItem != nullptr; psItem = psItem->psNext)
1291 : {
1292 :
1293 4 : if (psItem->eType != CXT_Element ||
1294 4 : !EQUAL(psItem->pszValue, "Item"))
1295 0 : continue;
1296 :
1297 : const char *pszKey =
1298 4 : CPLGetXMLValue(psItem, "name", nullptr);
1299 : const char *pszValue =
1300 4 : CPLGetXMLValue(psItem, nullptr, nullptr);
1301 : int nBand =
1302 4 : atoi(CPLGetXMLValue(psItem, "sample", "-1"));
1303 4 : if (pszKey && pszValue && nBand <= 0 &&
1304 4 : EQUAL(pszKey, "grid_name"))
1305 : {
1306 4 : osFriendlyName = ": ";
1307 4 : osFriendlyName += pszValue;
1308 4 : break;
1309 : }
1310 : }
1311 :
1312 4 : CPLDestroyXMLNode(psRoot);
1313 : }
1314 :
1315 416 : if (nXSize > INT_MAX || nYSize > INT_MAX)
1316 : {
1317 1 : CPLDebug("GTiff",
1318 : "Skipping directory with too large image: %u x %u",
1319 : nXSize, nYSize);
1320 : }
1321 : else
1322 : {
1323 415 : uint16_t nSPP = 0;
1324 415 : if (!TIFFGetField(m_hTIFF, TIFFTAG_SAMPLESPERPIXEL, &nSPP))
1325 0 : nSPP = 1;
1326 :
1327 830 : CPLString osName, osDesc;
1328 : osName.Printf("SUBDATASET_%d_NAME=GTIFF_DIR:%d:%s",
1329 415 : iDirIndex, iDirIndex, m_pszFilename);
1330 : osDesc.Printf(
1331 : "SUBDATASET_%d_DESC=Page %d (%dP x %dL x %dB)",
1332 : iDirIndex, iDirIndex, static_cast<int>(nXSize),
1333 415 : static_cast<int>(nYSize), nSPP);
1334 415 : osDesc += osFriendlyName;
1335 :
1336 415 : aosSubdatasets.AddString(osName);
1337 415 : aosSubdatasets.AddString(osDesc);
1338 : }
1339 : }
1340 : }
1341 1808 : CPLFree(subIFDOffsets);
1342 :
1343 : // Make sure we are stepping from the expected directory regardless
1344 : // of churn done processing the above.
1345 1808 : if (TIFFCurrentDirOffset(m_hTIFF) != nTopDir)
1346 13 : TIFFSetSubDirectory(m_hTIFF, nTopDir);
1347 2944 : } while (!m_bSingleIFDOpened && !TIFFLastDirectory(m_hTIFF) &&
1348 1136 : TIFFReadDirectory(m_hTIFF) != 0);
1349 :
1350 6731 : ReloadDirectory();
1351 :
1352 : // If we have a mask for the main image, loop over the overviews, and if
1353 : // they have a mask, let's set this mask as an overview of the main mask.
1354 6731 : if (m_poMaskDS != nullptr)
1355 : {
1356 217 : for (int i = 0; i < m_nOverviewCount; ++i)
1357 : {
1358 106 : if (cpl::down_cast<GTiffDataset *>(
1359 106 : GDALDataset::FromHandle(m_papoOverviewDS[i]))
1360 106 : ->m_poMaskDS != nullptr)
1361 : {
1362 106 : ++m_poMaskDS->m_nOverviewCount;
1363 212 : m_poMaskDS->m_papoOverviewDS =
1364 212 : static_cast<GTiffDataset **>(CPLRealloc(
1365 106 : m_poMaskDS->m_papoOverviewDS,
1366 106 : m_poMaskDS->m_nOverviewCount * (sizeof(void *))));
1367 106 : m_poMaskDS->m_papoOverviewDS[m_poMaskDS->m_nOverviewCount - 1] =
1368 106 : cpl::down_cast<GTiffDataset *>(
1369 106 : GDALDataset::FromHandle(m_papoOverviewDS[i]))
1370 106 : ->m_poMaskDS;
1371 : }
1372 : }
1373 : }
1374 :
1375 : // Assign color interpretation from main dataset
1376 6731 : const int l_nBands = GetRasterCount();
1377 7662 : for (int iOvr = 0; iOvr < m_nOverviewCount; ++iOvr)
1378 : {
1379 68126 : for (int i = 1; i <= l_nBands; i++)
1380 : {
1381 0 : auto poBand = dynamic_cast<GTiffRasterBand *>(
1382 67195 : m_papoOverviewDS[iOvr]->GetRasterBand(i));
1383 67195 : if (poBand)
1384 67195 : poBand->m_eBandInterp =
1385 67195 : GetRasterBand(i)->GetColorInterpretation();
1386 : }
1387 : }
1388 :
1389 : /* -------------------------------------------------------------------- */
1390 : /* Only keep track of subdatasets if we have more than one */
1391 : /* subdataset (pair). */
1392 : /* -------------------------------------------------------------------- */
1393 6731 : if (aosSubdatasets.size() > 2)
1394 : {
1395 11 : m_oGTiffMDMD.SetMetadata(aosSubdatasets.List(), "SUBDATASETS");
1396 : }
1397 : }
1398 :
1399 : /************************************************************************/
1400 : /* GetInternalHandle() */
1401 : /************************************************************************/
1402 :
1403 2390 : void *GTiffDataset::GetInternalHandle(const char *pszHandleName)
1404 :
1405 : {
1406 2390 : if (pszHandleName && EQUAL(pszHandleName, "TIFF_HANDLE"))
1407 2230 : return m_hTIFF;
1408 160 : return nullptr;
1409 : }
1410 :
1411 : /************************************************************************/
1412 : /* GetFileList() */
1413 : /************************************************************************/
1414 :
1415 2474 : char **GTiffDataset::GetFileList()
1416 :
1417 : {
1418 2474 : LoadGeoreferencingAndPamIfNeeded();
1419 :
1420 2474 : char **papszFileList = GDALPamDataset::GetFileList();
1421 :
1422 2474 : LoadMetadata();
1423 2474 : if (nullptr != m_papszMetadataFiles)
1424 : {
1425 77 : for (int i = 0; m_papszMetadataFiles[i] != nullptr; ++i)
1426 : {
1427 44 : if (CSLFindString(papszFileList, m_papszMetadataFiles[i]) < 0)
1428 : {
1429 : papszFileList =
1430 44 : CSLAddString(papszFileList, m_papszMetadataFiles[i]);
1431 : }
1432 : }
1433 : }
1434 :
1435 2480 : if (m_pszGeorefFilename &&
1436 6 : CSLFindString(papszFileList, m_pszGeorefFilename) == -1)
1437 : {
1438 6 : papszFileList = CSLAddString(papszFileList, m_pszGeorefFilename);
1439 : }
1440 :
1441 2474 : if (m_nXMLGeorefSrcIndex >= 0)
1442 2474 : LookForProjection();
1443 :
1444 2475 : if (m_pszXMLFilename &&
1445 1 : CSLFindString(papszFileList, m_pszXMLFilename) == -1)
1446 : {
1447 1 : papszFileList = CSLAddString(papszFileList, m_pszXMLFilename);
1448 : }
1449 :
1450 4948 : const std::string osVATDBF = std::string(m_pszFilename) + ".vat.dbf";
1451 : VSIStatBufL sStat;
1452 2474 : if (VSIStatL(osVATDBF.c_str(), &sStat) == 0)
1453 : {
1454 2 : papszFileList = CSLAddString(papszFileList, osVATDBF.c_str());
1455 : }
1456 :
1457 4948 : return papszFileList;
1458 : }
1459 :
1460 : /************************************************************************/
1461 : /* GetRawBinaryLayout() */
1462 : /************************************************************************/
1463 :
1464 9 : bool GTiffDataset::GetRawBinaryLayout(GDALDataset::RawBinaryLayout &sLayout)
1465 : {
1466 9 : if (eAccess == GA_Update)
1467 : {
1468 3 : FlushCache(false);
1469 3 : Crystalize();
1470 : }
1471 :
1472 9 : if (m_nCompression != COMPRESSION_NONE)
1473 1 : return false;
1474 8 : if (!CPLIsPowerOfTwo(m_nBitsPerSample) || m_nBitsPerSample < 8)
1475 0 : return false;
1476 8 : const auto eDT = GetRasterBand(1)->GetRasterDataType();
1477 8 : if (GDALDataTypeIsComplex(eDT))
1478 0 : return false;
1479 :
1480 8 : toff_t *panByteCounts = nullptr;
1481 8 : toff_t *panOffsets = nullptr;
1482 8 : const bool bIsTiled = CPL_TO_BOOL(TIFFIsTiled(m_hTIFF));
1483 :
1484 16 : if (!((bIsTiled &&
1485 3 : TIFFGetField(m_hTIFF, TIFFTAG_TILEBYTECOUNTS, &panByteCounts) &&
1486 3 : TIFFGetField(m_hTIFF, TIFFTAG_TILEOFFSETS, &panOffsets)) ||
1487 5 : (!bIsTiled &&
1488 5 : TIFFGetField(m_hTIFF, TIFFTAG_STRIPBYTECOUNTS, &panByteCounts) &&
1489 5 : TIFFGetField(m_hTIFF, TIFFTAG_STRIPOFFSETS, &panOffsets))))
1490 : {
1491 0 : return false;
1492 : }
1493 :
1494 8 : const int nDTSize = GDALGetDataTypeSizeBytes(eDT);
1495 8 : vsi_l_offset nImgOffset = panOffsets[0];
1496 16 : GIntBig nPixelOffset = (m_nPlanarConfig == PLANARCONFIG_CONTIG)
1497 8 : ? static_cast<GIntBig>(nDTSize) * nBands
1498 : : nDTSize;
1499 8 : GIntBig nLineOffset = nPixelOffset * nRasterXSize;
1500 8 : GIntBig nBandOffset =
1501 8 : (m_nPlanarConfig == PLANARCONFIG_CONTIG && nBands > 1) ? nDTSize : 0;
1502 8 : RawBinaryLayout::Interleaving eInterleaving =
1503 12 : (nBands == 1) ? RawBinaryLayout::Interleaving::UNKNOWN
1504 4 : : (m_nPlanarConfig == PLANARCONFIG_CONTIG)
1505 4 : ? RawBinaryLayout::Interleaving::BIP
1506 : : RawBinaryLayout::Interleaving::BSQ;
1507 8 : if (bIsTiled)
1508 : {
1509 : // Only a single block tiled file with same dimension as the raster
1510 : // might be acceptable
1511 3 : if (m_nBlockXSize != nRasterXSize || m_nBlockYSize != nRasterYSize)
1512 1 : return false;
1513 2 : if (nBands > 1 && m_nPlanarConfig != PLANARCONFIG_CONTIG)
1514 : {
1515 1 : nBandOffset = static_cast<GIntBig>(panOffsets[1]) -
1516 1 : static_cast<GIntBig>(panOffsets[0]);
1517 2 : for (int i = 2; i < nBands; i++)
1518 : {
1519 1 : if (static_cast<GIntBig>(panOffsets[i]) -
1520 1 : static_cast<GIntBig>(panOffsets[i - 1]) !=
1521 : nBandOffset)
1522 0 : return false;
1523 : }
1524 : }
1525 : }
1526 : else
1527 : {
1528 5 : const int nStrips = DIV_ROUND_UP(nRasterYSize, m_nRowsPerStrip);
1529 5 : if (nBands == 1 || m_nPlanarConfig == PLANARCONFIG_CONTIG)
1530 : {
1531 4 : vsi_l_offset nLastStripEnd = panOffsets[0] + panByteCounts[0];
1532 16 : for (int iStrip = 1; iStrip < nStrips; iStrip++)
1533 : {
1534 12 : if (nLastStripEnd != panOffsets[iStrip])
1535 0 : return false;
1536 12 : nLastStripEnd = panOffsets[iStrip] + panByteCounts[iStrip];
1537 4 : }
1538 : }
1539 : else
1540 : {
1541 : // Note: we could potentially have BIL order with m_nRowsPerStrip ==
1542 : // 1 and if strips are ordered strip_line_1_band_1, ...,
1543 : // strip_line_1_band_N, strip_line2_band1, ... strip_line2_band_N,
1544 : // etc.... but that'd be faily exotic ! So only detect BSQ layout
1545 : // here
1546 1 : nBandOffset = static_cast<GIntBig>(panOffsets[nStrips]) -
1547 1 : static_cast<GIntBig>(panOffsets[0]);
1548 4 : for (int i = 0; i < nBands; i++)
1549 : {
1550 3 : uint32_t iStripOffset = nStrips * i;
1551 3 : vsi_l_offset nLastStripEnd =
1552 3 : panOffsets[iStripOffset] + panByteCounts[iStripOffset];
1553 3 : for (int iStrip = 1; iStrip < nStrips; iStrip++)
1554 : {
1555 0 : if (nLastStripEnd != panOffsets[iStripOffset + iStrip])
1556 0 : return false;
1557 0 : nLastStripEnd = panOffsets[iStripOffset + iStrip] +
1558 0 : panByteCounts[iStripOffset + iStrip];
1559 : }
1560 3 : if (i >= 2 && static_cast<GIntBig>(panOffsets[iStripOffset]) -
1561 1 : static_cast<GIntBig>(
1562 1 : panOffsets[iStripOffset - nStrips]) !=
1563 : nBandOffset)
1564 : {
1565 0 : return false;
1566 : }
1567 : }
1568 : }
1569 : }
1570 :
1571 7 : sLayout.osRawFilename = m_pszFilename;
1572 7 : sLayout.eInterleaving = eInterleaving;
1573 7 : sLayout.eDataType = eDT;
1574 : #ifdef CPL_LSB
1575 7 : sLayout.bLittleEndianOrder = !TIFFIsByteSwapped(m_hTIFF);
1576 : #else
1577 : sLayout.bLittleEndianOrder = TIFFIsByteSwapped(m_hTIFF);
1578 : #endif
1579 7 : sLayout.nImageOffset = nImgOffset;
1580 7 : sLayout.nPixelOffset = nPixelOffset;
1581 7 : sLayout.nLineOffset = nLineOffset;
1582 7 : sLayout.nBandOffset = nBandOffset;
1583 :
1584 7 : return true;
1585 : }
1586 :
1587 : /************************************************************************/
1588 : /* GTiffDatasetLibGeotiffErrorCallback() */
1589 : /************************************************************************/
1590 :
1591 0 : static void GTiffDatasetLibGeotiffErrorCallback(GTIF *, int level,
1592 : const char *pszMsg, ...)
1593 : {
1594 : va_list ap;
1595 0 : va_start(ap, pszMsg);
1596 0 : CPLErrorV((level == LIBGEOTIFF_WARNING) ? CE_Warning : CE_Failure,
1597 : CPLE_AppDefined, pszMsg, ap);
1598 0 : va_end(ap);
1599 0 : }
1600 :
1601 : /************************************************************************/
1602 : /* GTIFNew() */
1603 : /************************************************************************/
1604 :
1605 32780 : /* static */ GTIF *GTiffDataset::GTIFNew(TIFF *hTIFF)
1606 : {
1607 32780 : GTIF *gtif = GTIFNewEx(hTIFF, GTiffDatasetLibGeotiffErrorCallback, nullptr);
1608 32780 : if (gtif)
1609 : {
1610 32780 : GTIFAttachPROJContext(gtif, OSRGetProjTLSContext());
1611 : }
1612 32780 : return gtif;
1613 : }
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