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 25458 : const GTIFFTag *GTiffDataset::GetTIFFTags()
63 : {
64 25458 : return asTIFFTags;
65 : }
66 :
67 : /************************************************************************/
68 : /* GTiffDataset() */
69 : /************************************************************************/
70 :
71 26579 : 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 26585 : CPLTestBool(CPLGetConfigOption("GTIFF_DONT_WRITE_BLOCKS", "NO"))),
91 : m_bIsFinalized(false),
92 : m_bIgnoreReadErrors(
93 26582 : CPLTestBool(CPLGetConfigOption("GTIFF_IGNORE_READ_ERRORS", "NO"))),
94 26585 : 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 79742 : m_bWriteCOGLayout(false)
103 : {
104 : // CPLDebug("GDAL", "sizeof(GTiffDataset) = %d bytes", static_cast<int>(
105 : // sizeof(GTiffDataset)));
106 :
107 : const char *pszVirtualMemIO =
108 26584 : CPLGetConfigOption("GTIFF_VIRTUAL_MEM_IO", "NO");
109 26585 : if (EQUAL(pszVirtualMemIO, "IF_ENOUGH_RAM"))
110 0 : m_eVirtualMemIOUsage = VirtualMemIOEnum::IF_ENOUGH_RAM;
111 26585 : else if (CPLTestBool(pszVirtualMemIO))
112 41 : m_eVirtualMemIOUsage = VirtualMemIOEnum::YES;
113 :
114 26582 : m_oSRS.SetAxisMappingStrategy(OAMS_TRADITIONAL_GIS_ORDER);
115 26493 : }
116 :
117 : /************************************************************************/
118 : /* ~GTiffDataset() */
119 : /************************************************************************/
120 :
121 53156 : GTiffDataset::~GTiffDataset()
122 :
123 : {
124 26578 : GTiffDataset::Close();
125 53156 : }
126 :
127 : /************************************************************************/
128 : /* Close() */
129 : /************************************************************************/
130 :
131 47278 : CPLErr GTiffDataset::Close()
132 : {
133 47278 : if (nOpenFlags != OPEN_FLAGS_CLOSED)
134 : {
135 26583 : auto [eErr, bDroppedRef] = Finalize();
136 :
137 26577 : if (m_pszTmpFilename)
138 : {
139 4 : VSIUnlink(m_pszTmpFilename);
140 4 : CPLFree(m_pszTmpFilename);
141 : }
142 :
143 26577 : if (GDALPamDataset::Close() != CE_None)
144 0 : eErr = CE_Failure;
145 26577 : return eErr;
146 : }
147 20695 : 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 26642 : std::tuple<CPLErr, bool> GTiffDataset::Finalize()
157 : {
158 26642 : bool bDroppedRef = false;
159 26642 : if (m_bIsFinalized)
160 118 : return std::tuple(CE_None, bDroppedRef);
161 :
162 26583 : CPLErr eErr = CE_None;
163 26583 : Crystalize();
164 :
165 26582 : 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 26582 : 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 26583 : if (m_psVirtualMemIOMapping)
184 11 : CPLVirtualMemFree(m_psVirtualMemIOMapping);
185 26583 : m_psVirtualMemIOMapping = nullptr;
186 :
187 : /* -------------------------------------------------------------------- */
188 : /* Fill in missing blocks with empty data. */
189 : /* -------------------------------------------------------------------- */
190 26583 : if (m_bFillEmptyTilesAtClosing)
191 : {
192 : /* --------------------------------------------------------------------
193 : */
194 : /* Ensure any blocks write cached by GDAL gets pushed through libtiff.
195 : */
196 : /* --------------------------------------------------------------------
197 : */
198 5257 : if (FlushCacheInternal(true, /* at closing */
199 5257 : false /* do not call FlushDirectory */) !=
200 : CE_None)
201 : {
202 0 : eErr = CE_Failure;
203 : }
204 :
205 5257 : if (FillEmptyTiles() != CE_None)
206 : {
207 9 : eErr = CE_Failure;
208 : }
209 5257 : 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 26583 : if (FlushCacheInternal(true /* at closing */, true) != CE_None)
217 : {
218 7 : eErr = CE_Failure;
219 : }
220 :
221 : // Destroy compression queue
222 26583 : 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 26582 : 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 26582 : 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 24942 : const int nOldOverviewCount = m_nOverviewCount;
258 24942 : m_nOverviewCount = 0;
259 26273 : for (int i = 0; i < nOldOverviewCount; ++i)
260 : {
261 1331 : delete m_papoOverviewDS[i];
262 1331 : bDroppedRef = true;
263 : }
264 :
265 25002 : for (int i = 0; i < m_nJPEGOverviewCountOri; ++i)
266 : {
267 60 : delete m_papoJPEGOverviewDS[i];
268 60 : bDroppedRef = true;
269 : }
270 24942 : m_nJPEGOverviewCount = 0;
271 24942 : m_nJPEGOverviewCountOri = 0;
272 24942 : CPLFree(m_papoJPEGOverviewDS);
273 24941 : 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 26581 : CPLFree(m_papoOverviewDS);
279 26582 : 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 26582 : 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)
289 306 : auto poMaskDS = m_poMaskDS;
290 306 : m_poMaskDS = nullptr;
291 306 : delete poMaskDS;
292 306 : bDroppedRef = true;
293 : }
294 :
295 26582 : m_poColorTable.reset();
296 :
297 26581 : if (m_hTIFF)
298 : {
299 26580 : XTIFFClose(m_hTIFF);
300 26582 : m_hTIFF = nullptr;
301 : }
302 :
303 26583 : if (!m_poBaseDS)
304 : {
305 24943 : if (m_fpL != nullptr)
306 : {
307 24943 : 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 24943 : if (VSIFCloseL(m_fpL) != 0)
332 : {
333 0 : eErr = CE_Failure;
334 0 : ReportError(CE_Failure, CPLE_FileIO, "I/O error");
335 : }
336 24943 : m_fpL = nullptr;
337 : }
338 : }
339 :
340 26583 : 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 26583 : m_aoGCPs.clear();
351 :
352 26578 : CSLDestroy(m_papszCreationOptions);
353 26580 : m_papszCreationOptions = nullptr;
354 :
355 26580 : CPLFree(m_pabyTempWriteBuffer);
356 26580 : m_pabyTempWriteBuffer = nullptr;
357 :
358 26580 : m_bIMDRPCMetadataLoaded = false;
359 26580 : CSLDestroy(m_papszMetadataFiles);
360 26579 : m_papszMetadataFiles = nullptr;
361 :
362 26579 : VSIFree(m_pTempBufferForCommonDirectIO);
363 26580 : m_pTempBufferForCommonDirectIO = nullptr;
364 :
365 26580 : CPLFree(m_panMaskOffsetLsb);
366 26579 : m_panMaskOffsetLsb = nullptr;
367 :
368 26579 : CPLFree(m_pszVertUnit);
369 26580 : m_pszVertUnit = nullptr;
370 :
371 26580 : CPLFree(m_pszFilename);
372 26582 : m_pszFilename = nullptr;
373 :
374 26582 : CPLFree(m_pszGeorefFilename);
375 26582 : m_pszGeorefFilename = nullptr;
376 :
377 26582 : CPLFree(m_pszXMLFilename);
378 26583 : m_pszXMLFilename = nullptr;
379 :
380 26583 : m_bIsFinalized = true;
381 :
382 26583 : return std::tuple(eErr, bDroppedRef);
383 : }
384 :
385 : /************************************************************************/
386 : /* CloseDependentDatasets() */
387 : /************************************************************************/
388 :
389 59 : int GTiffDataset::CloseDependentDatasets()
390 : {
391 59 : if (m_poBaseDS)
392 0 : return FALSE;
393 :
394 59 : 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 59 : auto [eErr, bHasDroppedRefInFinalize] = Finalize();
399 59 : if (bHasDroppedRefInFinalize)
400 1 : bHasDroppedRef = true;
401 :
402 59 : 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 434865 : 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 434865 : 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 434843 : 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 434235 : 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 433821 : bool bCanUseMultiThreadedRead = false;
476 433821 : if (m_nDisableMultiThreadedRead == 0 && m_poThreadPool &&
477 867787 : 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 int nBlocks =
487 145 : nXBlocks * nYBlocks *
488 145 : (m_nPlanarConfig == PLANARCONFIG_CONTIG ? 1 : nBandCount);
489 145 : if (nBlocks > 1)
490 : {
491 142 : bCanUseMultiThreadedRead = true;
492 : }
493 : }
494 :
495 433821 : void *pBufferedData = nullptr;
496 433821 : const auto poFirstBand = cpl::down_cast<GTiffRasterBand *>(papoBands[0]);
497 433821 : const auto eDataType = poFirstBand->GetRasterDataType();
498 :
499 37870 : if (eAccess == GA_ReadOnly && eRWFlag == GF_Read &&
500 37870 : (nBands == 1 || m_nPlanarConfig == PLANARCONFIG_CONTIG) &&
501 471706 : HasOptimizedReadMultiRange() &&
502 15 : !(bCanUseMultiThreadedRead &&
503 3 : VSI_TIFFGetVSILFile(TIFFClientdata(m_hTIFF))->HasPRead()))
504 : {
505 12 : pBufferedData = poFirstBand->CacheMultiRange(
506 : nXOff, nYOff, nXSize, nYSize, nBufXSize, nBufYSize, psExtraArg);
507 : }
508 433809 : else if (bCanUseMultiThreadedRead)
509 : {
510 142 : return MultiThreadedRead(nXOff, nYOff, nXSize, nYSize, pData, eBufType,
511 : nBandCount, panBandMap, nPixelSpace,
512 142 : nLineSpace, nBandSpace);
513 : }
514 :
515 : // Write optimization when writing whole blocks, by-passing the block cache.
516 : // We require the block cache to be non instantiated to simplify things
517 : // (otherwise we might need to evict corresponding existing blocks from the
518 : // block cache).
519 202642 : else if (eRWFlag == GF_Write && nBands > 1 &&
520 28745 : m_nPlanarConfig == PLANARCONFIG_CONTIG &&
521 : // Could be extended to "odd bit" case, but more work
522 28256 : m_nBitsPerSample == GDALGetDataTypeSize(eDataType) &&
523 28245 : nXSize == nBufXSize && nYSize == nBufYSize &&
524 28243 : nBandCount == nBands && !m_bLoadedBlockDirty &&
525 28221 : (nXOff % m_nBlockXSize) == 0 && (nYOff % m_nBlockYSize) == 0 &&
526 2480 : (nXOff + nXSize == nRasterXSize ||
527 636349 : (nXSize % m_nBlockXSize) == 0) &&
528 2477 : (nYOff + nYSize == nRasterYSize || (nYSize % m_nBlockYSize) == 0))
529 : {
530 2355 : bool bOptimOK = true;
531 2355 : bool bOrderedBands = true;
532 9759 : for (int i = 0; i < nBands; ++i)
533 : {
534 7413 : if (panBandMap[i] != i + 1)
535 : {
536 14 : bOrderedBands = false;
537 : }
538 14826 : if (cpl::down_cast<GTiffRasterBand *>(papoBands[panBandMap[i] - 1])
539 7413 : ->HasBlockCache())
540 : {
541 9 : bOptimOK = false;
542 9 : break;
543 : }
544 : }
545 2355 : if (bOptimOK)
546 : {
547 2346 : Crystalize();
548 :
549 2346 : if (m_bDebugDontWriteBlocks)
550 0 : return CE_None;
551 :
552 2346 : const int nDTSize = GDALGetDataTypeSizeBytes(eDataType);
553 2346 : if (bOrderedBands && nXSize == m_nBlockXSize &&
554 2125 : nYSize == m_nBlockYSize && eBufType == eDataType &&
555 1169 : nBandSpace == nDTSize &&
556 23 : nPixelSpace == static_cast<GSpacing>(nDTSize) * nBands &&
557 5 : nLineSpace == nPixelSpace * m_nBlockXSize)
558 : {
559 : // If writing one single block with the right data type and
560 : // layout (interleaved per pixel), we don't need a temporary
561 : // buffer
562 10 : const int nBlockId = poFirstBand->ComputeBlockId(
563 5 : nXOff / m_nBlockXSize, nYOff / m_nBlockYSize);
564 5 : return WriteEncodedTileOrStrip(nBlockId, pData,
565 5 : /* bPreserveDataBuffer= */ true);
566 : }
567 :
568 : // Make sure m_poGDS->m_pabyBlockBuf is allocated.
569 : // We could actually use any temporary buffer
570 2341 : if (LoadBlockBuf(/* nBlockId = */ -1,
571 2341 : /* bReadFromDisk = */ false) != CE_None)
572 : {
573 0 : return CE_Failure;
574 : }
575 :
576 : // Iterate over all blocks defined by
577 : // [nXOff, nXOff+nXSize[ * [nYOff, nYOff+nYSize[
578 : // and write their content as a nBlockXSize x nBlockYSize strile
579 : // in a temporary buffer, before calling WriteEncodedTileOrStrip()
580 : // on it
581 2341 : const int nYBlockStart = nYOff / m_nBlockYSize;
582 2341 : const int nYBlockEnd = 1 + (nYOff + nYSize - 1) / m_nBlockYSize;
583 2341 : const int nXBlockStart = nXOff / m_nBlockXSize;
584 2341 : const int nXBlockEnd = 1 + (nXOff + nXSize - 1) / m_nBlockXSize;
585 32440 : for (int nYBlock = nYBlockStart; nYBlock < nYBlockEnd; ++nYBlock)
586 : {
587 : const int nValidY = std::min(
588 30103 : m_nBlockYSize, nRasterYSize - nYBlock * m_nBlockYSize);
589 62959 : for (int nXBlock = nXBlockStart; nXBlock < nXBlockEnd;
590 : ++nXBlock)
591 : {
592 : const int nValidX = std::min(
593 32860 : m_nBlockXSize, nRasterXSize - nXBlock * m_nBlockXSize);
594 32860 : if (nValidY < m_nBlockYSize || nValidX < m_nBlockXSize)
595 : {
596 : // Make sure padding bytes at the right/bottom of the
597 : // tile are initialized to zero.
598 1248 : memset(m_pabyBlockBuf, 0,
599 1248 : static_cast<size_t>(m_nBlockXSize) *
600 1248 : m_nBlockYSize * nBands * nDTSize);
601 : }
602 32860 : const auto nBufDTSize = GDALGetDataTypeSizeBytes(eBufType);
603 32860 : const GByte *pabySrcData =
604 : static_cast<const GByte *>(pData) +
605 32860 : static_cast<size_t>(nYBlock - nYBlockStart) *
606 32860 : m_nBlockYSize * nLineSpace +
607 32860 : static_cast<size_t>(nXBlock - nXBlockStart) *
608 32860 : m_nBlockXSize * nPixelSpace;
609 32860 : if (bOrderedBands && nBandSpace == nBufDTSize &&
610 24 : nPixelSpace == nBands * nBandSpace)
611 : {
612 : // Input buffer is pixel interleaved
613 17 : for (int iY = 0; iY < nValidY; ++iY)
614 : {
615 16 : GDALCopyWords64(
616 16 : pabySrcData +
617 16 : static_cast<size_t>(iY) * nLineSpace,
618 : eBufType, nBufDTSize,
619 16 : m_pabyBlockBuf + static_cast<size_t>(iY) *
620 16 : m_nBlockXSize * nBands *
621 16 : nDTSize,
622 : eDataType, nDTSize,
623 16 : static_cast<GPtrDiff_t>(nValidX) * nBands);
624 1 : }
625 : }
626 : else
627 : {
628 : // "Random" spacing for input buffer
629 134089 : for (int iBand = 0; iBand < nBands; ++iBand)
630 : {
631 4222720 : for (int iY = 0; iY < nValidY; ++iY)
632 : {
633 4121490 : GDALCopyWords64(
634 4121490 : pabySrcData +
635 4121490 : static_cast<size_t>(iY) * nLineSpace,
636 : eBufType, static_cast<int>(nPixelSpace),
637 4121490 : m_pabyBlockBuf +
638 4121490 : (panBandMap[iBand] - 1 +
639 4121490 : static_cast<size_t>(iY) *
640 4121490 : m_nBlockXSize * nBands) *
641 4121490 : nDTSize,
642 4121490 : eDataType, nDTSize * nBands, nValidX);
643 : }
644 101230 : pabySrcData += nBandSpace;
645 : }
646 : }
647 :
648 : const int nBlockId =
649 32860 : poFirstBand->ComputeBlockId(nXBlock, nYBlock);
650 65720 : if (WriteEncodedTileOrStrip(
651 32860 : nBlockId, m_pabyBlockBuf,
652 32860 : /* bPreserveDataBuffer= */ false) != CE_None)
653 : {
654 4 : return CE_Failure;
655 : }
656 : }
657 : }
658 2337 : return CE_None;
659 : }
660 : }
661 :
662 431333 : if (psExtraArg->eResampleAlg == GRIORA_NearestNeighbour)
663 431173 : ++m_nJPEGOverviewVisibilityCounter;
664 431333 : const CPLErr eErr = GDALPamDataset::IRasterIO(
665 : eRWFlag, nXOff, nYOff, nXSize, nYSize, pData, nBufXSize, nBufYSize,
666 : eBufType, nBandCount, panBandMap, nPixelSpace, nLineSpace, nBandSpace,
667 : psExtraArg);
668 431333 : if (psExtraArg->eResampleAlg == GRIORA_NearestNeighbour)
669 431173 : m_nJPEGOverviewVisibilityCounter--;
670 :
671 431333 : if (pBufferedData)
672 : {
673 6 : VSIFree(pBufferedData);
674 6 : VSI_TIFFSetCachedRanges(TIFFClientdata(m_hTIFF), 0, nullptr, nullptr,
675 : nullptr);
676 : }
677 :
678 431333 : return eErr;
679 : }
680 :
681 : /************************************************************************/
682 : /* GetGTIFFKeysFlavor() */
683 : /************************************************************************/
684 :
685 26244 : GTIFFKeysFlavorEnum GetGTIFFKeysFlavor(CSLConstList papszOptions)
686 : {
687 : const char *pszGeoTIFFKeysFlavor =
688 26244 : CSLFetchNameValueDef(papszOptions, "GEOTIFF_KEYS_FLAVOR", "STANDARD");
689 26287 : if (EQUAL(pszGeoTIFFKeysFlavor, "ESRI_PE"))
690 1 : return GEOTIFF_KEYS_ESRI_PE;
691 26286 : return GEOTIFF_KEYS_STANDARD;
692 : }
693 :
694 : /************************************************************************/
695 : /* GetGeoTIFFVersion() */
696 : /************************************************************************/
697 :
698 26252 : GeoTIFFVersionEnum GetGeoTIFFVersion(CSLConstList papszOptions)
699 : {
700 : const char *pszVersion =
701 26252 : CSLFetchNameValueDef(papszOptions, "GEOTIFF_VERSION", "AUTO");
702 26271 : if (EQUAL(pszVersion, "1.0"))
703 3 : return GEOTIFF_VERSION_1_0;
704 26268 : if (EQUAL(pszVersion, "1.1"))
705 5 : return GEOTIFF_VERSION_1_1;
706 26263 : return GEOTIFF_VERSION_AUTO;
707 : }
708 :
709 : /************************************************************************/
710 : /* InitCreationOrOpenOptions() */
711 : /************************************************************************/
712 :
713 24888 : void GTiffDataset::InitCreationOrOpenOptions(bool bUpdateMode,
714 : CSLConstList papszOptions)
715 : {
716 24888 : InitCompressionThreads(bUpdateMode, papszOptions);
717 :
718 24846 : m_eGeoTIFFKeysFlavor = GetGTIFFKeysFlavor(papszOptions);
719 24809 : m_eGeoTIFFVersion = GetGeoTIFFVersion(papszOptions);
720 24773 : }
721 :
722 : /************************************************************************/
723 : /* IsBlockAvailable() */
724 : /* */
725 : /* Return true if the indicated strip/tile is available. We */
726 : /* establish this by testing if the stripbytecount is zero. If */
727 : /* zero then the block has never been committed to disk. */
728 : /************************************************************************/
729 :
730 2287830 : bool GTiffDataset::IsBlockAvailable(int nBlockId, vsi_l_offset *pnOffset,
731 : vsi_l_offset *pnSize, bool *pbErrOccurred)
732 :
733 : {
734 2287830 : if (pbErrOccurred)
735 2246450 : *pbErrOccurred = false;
736 :
737 2287830 : std::pair<vsi_l_offset, vsi_l_offset> oPair;
738 2287830 : if (m_oCacheStrileToOffsetByteCount.tryGet(nBlockId, oPair))
739 : {
740 428 : if (pnOffset)
741 87 : *pnOffset = oPair.first;
742 428 : if (pnSize)
743 0 : *pnSize = oPair.second;
744 428 : return oPair.first != 0;
745 : }
746 :
747 2287250 : WaitCompletionForBlock(nBlockId);
748 :
749 : // Optimization to avoid fetching the whole Strip/TileCounts and
750 : // Strip/TileOffsets arrays.
751 2287240 : if (eAccess == GA_ReadOnly && !m_bStreamingIn)
752 : {
753 2176390 : int nErrOccurred = 0;
754 : auto bytecount =
755 2176390 : TIFFGetStrileByteCountWithErr(m_hTIFF, nBlockId, &nErrOccurred);
756 2176450 : if (nErrOccurred && pbErrOccurred)
757 0 : *pbErrOccurred = true;
758 2176450 : if (pnOffset)
759 : {
760 2126130 : *pnOffset =
761 2126050 : TIFFGetStrileOffsetWithErr(m_hTIFF, nBlockId, &nErrOccurred);
762 2126130 : if (nErrOccurred && pbErrOccurred)
763 2 : *pbErrOccurred = true;
764 : }
765 2176530 : if (pnSize)
766 11635 : *pnSize = bytecount;
767 2176530 : return bytecount != 0;
768 : }
769 :
770 110850 : toff_t *panByteCounts = nullptr;
771 110850 : toff_t *panOffsets = nullptr;
772 110850 : const bool bIsTiled = CPL_TO_BOOL(TIFFIsTiled(m_hTIFF));
773 :
774 143929 : if ((bIsTiled &&
775 33135 : TIFFGetField(m_hTIFF, TIFFTAG_TILEBYTECOUNTS, &panByteCounts) &&
776 25052 : (pnOffset == nullptr ||
777 221588 : TIFFGetField(m_hTIFF, TIFFTAG_TILEOFFSETS, &panOffsets))) ||
778 77659 : (!bIsTiled &&
779 77659 : TIFFGetField(m_hTIFF, TIFFTAG_STRIPBYTECOUNTS, &panByteCounts) &&
780 36539 : (pnOffset == nullptr ||
781 36539 : TIFFGetField(m_hTIFF, TIFFTAG_STRIPOFFSETS, &panOffsets))))
782 : {
783 110794 : if (panByteCounts == nullptr ||
784 61591 : (pnOffset != nullptr && panOffsets == nullptr))
785 : {
786 0 : if (pbErrOccurred)
787 0 : *pbErrOccurred = true;
788 0 : return false;
789 : }
790 : const int nBlockCount =
791 110794 : bIsTiled ? TIFFNumberOfTiles(m_hTIFF) : TIFFNumberOfStrips(m_hTIFF);
792 110794 : if (nBlockId >= nBlockCount)
793 : {
794 0 : if (pbErrOccurred)
795 0 : *pbErrOccurred = true;
796 0 : return false;
797 : }
798 :
799 110794 : if (pnOffset)
800 61591 : *pnOffset = panOffsets[nBlockId];
801 110794 : if (pnSize)
802 7065 : *pnSize = panByteCounts[nBlockId];
803 110794 : return panByteCounts[nBlockId] != 0;
804 : }
805 : else
806 : {
807 0 : if (pbErrOccurred)
808 0 : *pbErrOccurred = true;
809 : }
810 :
811 0 : return false;
812 : }
813 :
814 : /************************************************************************/
815 : /* ReloadDirectory() */
816 : /************************************************************************/
817 :
818 6802 : void GTiffDataset::ReloadDirectory(bool bReopenHandle)
819 : {
820 6802 : bool bNeedSetInvalidDir = true;
821 6802 : if (bReopenHandle)
822 : {
823 : // When issuing a TIFFRewriteDirectory() or when a TIFFFlush() has
824 : // caused a move of the directory, we would need to invalidate the
825 : // tif_lastdiroff member, but it is not possible to do so without
826 : // re-opening the TIFF handle.
827 9 : auto hTIFFNew = VSI_TIFFReOpen(m_hTIFF);
828 9 : if (hTIFFNew != nullptr)
829 : {
830 9 : m_hTIFF = hTIFFNew;
831 9 : bNeedSetInvalidDir = false; // we could do it, but not needed
832 : }
833 : else
834 : {
835 0 : CPLError(CE_Failure, CPLE_AppDefined,
836 : "Cannot re-open TIFF handle for file %s. "
837 : "Directory chaining may be corrupted !",
838 : m_pszFilename);
839 : }
840 : }
841 6802 : if (bNeedSetInvalidDir)
842 : {
843 6793 : TIFFSetSubDirectory(m_hTIFF, 0);
844 : }
845 6802 : CPL_IGNORE_RET_VAL(SetDirectory());
846 6801 : }
847 :
848 : /************************************************************************/
849 : /* SetDirectory() */
850 : /************************************************************************/
851 :
852 47252 : bool GTiffDataset::SetDirectory()
853 :
854 : {
855 47252 : Crystalize();
856 :
857 47123 : if (TIFFCurrentDirOffset(m_hTIFF) == m_nDirOffset)
858 : {
859 38708 : return true;
860 : }
861 :
862 8443 : const int nSetDirResult = TIFFSetSubDirectory(m_hTIFF, m_nDirOffset);
863 8443 : if (!nSetDirResult)
864 0 : return false;
865 :
866 8443 : RestoreVolatileParameters(m_hTIFF);
867 :
868 8443 : return true;
869 : }
870 :
871 : /************************************************************************/
872 : /* GTiffSetDeflateSubCodec() */
873 : /************************************************************************/
874 :
875 6316 : void GTiffSetDeflateSubCodec(TIFF *hTIFF)
876 : {
877 : (void)hTIFF;
878 :
879 : #if defined(TIFFTAG_DEFLATE_SUBCODEC) && defined(LIBDEFLATE_SUPPORT)
880 : // Mostly for strict reproducibility purposes
881 6316 : if (EQUAL(CPLGetConfigOption("GDAL_TIFF_DEFLATE_SUBCODEC", ""), "ZLIB"))
882 : {
883 4097 : TIFFSetField(hTIFF, TIFFTAG_DEFLATE_SUBCODEC, DEFLATE_SUBCODEC_ZLIB);
884 : }
885 : #endif
886 6316 : }
887 :
888 : /************************************************************************/
889 : /* RestoreVolatileParameters() */
890 : /************************************************************************/
891 :
892 40572 : void GTiffDataset::RestoreVolatileParameters(TIFF *hTIFF)
893 : {
894 :
895 : /* -------------------------------------------------------------------- */
896 : /* YCbCr JPEG compressed images should be translated on the fly */
897 : /* to RGB by libtiff/libjpeg unless specifically requested */
898 : /* otherwise. */
899 : /* -------------------------------------------------------------------- */
900 81567 : if (m_nCompression == COMPRESSION_JPEG &&
901 40855 : m_nPhotometric == PHOTOMETRIC_YCBCR &&
902 285 : CPLTestBool(CPLGetConfigOption("CONVERT_YCBCR_TO_RGB", "YES")))
903 : {
904 285 : int nColorMode = JPEGCOLORMODE_RAW; // Initialize to 0;
905 :
906 285 : TIFFGetField(hTIFF, TIFFTAG_JPEGCOLORMODE, &nColorMode);
907 285 : if (nColorMode != JPEGCOLORMODE_RGB)
908 : {
909 251 : TIFFSetField(hTIFF, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB);
910 : }
911 : }
912 :
913 40570 : if (m_nCompression == COMPRESSION_ADOBE_DEFLATE ||
914 34847 : m_nCompression == COMPRESSION_LERC)
915 : {
916 5960 : GTiffSetDeflateSubCodec(hTIFF);
917 : }
918 :
919 : /* -------------------------------------------------------------------- */
920 : /* Propagate any quality settings. */
921 : /* -------------------------------------------------------------------- */
922 40570 : if (eAccess == GA_Update)
923 : {
924 : // Now, reset zip and jpeg quality.
925 34492 : if (m_nJpegQuality > 0 && m_nCompression == COMPRESSION_JPEG)
926 : {
927 : #ifdef DEBUG_VERBOSE
928 : CPLDebug("GTiff", "Propagate JPEG_QUALITY(%d) in SetDirectory()",
929 : m_nJpegQuality);
930 : #endif
931 185 : TIFFSetField(hTIFF, TIFFTAG_JPEGQUALITY, m_nJpegQuality);
932 : }
933 34492 : if (m_nJpegTablesMode >= 0 && m_nCompression == COMPRESSION_JPEG)
934 323 : TIFFSetField(hTIFF, TIFFTAG_JPEGTABLESMODE, m_nJpegTablesMode);
935 34492 : if (m_nZLevel > 0 && (m_nCompression == COMPRESSION_ADOBE_DEFLATE ||
936 12 : m_nCompression == COMPRESSION_LERC))
937 26 : TIFFSetField(hTIFF, TIFFTAG_ZIPQUALITY, m_nZLevel);
938 34492 : if (m_nLZMAPreset > 0 && m_nCompression == COMPRESSION_LZMA)
939 8 : TIFFSetField(hTIFF, TIFFTAG_LZMAPRESET, m_nLZMAPreset);
940 34492 : if (m_nZSTDLevel > 0 && (m_nCompression == COMPRESSION_ZSTD ||
941 12 : m_nCompression == COMPRESSION_LERC))
942 18 : TIFFSetField(hTIFF, TIFFTAG_ZSTD_LEVEL, m_nZSTDLevel);
943 34492 : if (m_nCompression == COMPRESSION_LERC)
944 : {
945 185 : TIFFSetField(hTIFF, TIFFTAG_LERC_MAXZERROR, m_dfMaxZError);
946 : }
947 34492 : if (m_nWebPLevel > 0 && m_nCompression == COMPRESSION_WEBP)
948 124 : TIFFSetField(hTIFF, TIFFTAG_WEBP_LEVEL, m_nWebPLevel);
949 34492 : if (m_bWebPLossless && m_nCompression == COMPRESSION_WEBP)
950 50 : TIFFSetField(hTIFF, TIFFTAG_WEBP_LOSSLESS, 1);
951 : #ifdef HAVE_JXL
952 34492 : if (m_nCompression == COMPRESSION_JXL ||
953 34490 : m_nCompression == COMPRESSION_JXL_DNG_1_7)
954 : {
955 76 : TIFFSetField(hTIFF, TIFFTAG_JXL_LOSSYNESS,
956 76 : m_bJXLLossless ? JXL_LOSSLESS : JXL_LOSSY);
957 76 : TIFFSetField(hTIFF, TIFFTAG_JXL_EFFORT, m_nJXLEffort);
958 76 : TIFFSetField(hTIFF, TIFFTAG_JXL_DISTANCE, m_fJXLDistance);
959 76 : TIFFSetField(hTIFF, TIFFTAG_JXL_ALPHA_DISTANCE,
960 76 : m_fJXLAlphaDistance);
961 : }
962 : #endif
963 : }
964 40570 : }
965 :
966 : /************************************************************************/
967 : /* ComputeBlocksPerColRowAndBand() */
968 : /************************************************************************/
969 :
970 26566 : bool GTiffDataset::ComputeBlocksPerColRowAndBand(int l_nBands)
971 : {
972 26566 : m_nBlocksPerColumn = DIV_ROUND_UP(nRasterYSize, m_nBlockYSize);
973 26566 : m_nBlocksPerRow = DIV_ROUND_UP(nRasterXSize, m_nBlockXSize);
974 26566 : if (m_nBlocksPerColumn > INT_MAX / m_nBlocksPerRow)
975 : {
976 1 : ReportError(CE_Failure, CPLE_AppDefined, "Too many blocks: %d x %d",
977 : m_nBlocksPerRow, m_nBlocksPerColumn);
978 1 : return false;
979 : }
980 :
981 : // Note: we could potentially go up to UINT_MAX blocks, but currently
982 : // we use a int nBlockId
983 26565 : m_nBlocksPerBand = m_nBlocksPerColumn * m_nBlocksPerRow;
984 26565 : if (m_nPlanarConfig == PLANARCONFIG_SEPARATE &&
985 1565 : m_nBlocksPerBand > INT_MAX / l_nBands)
986 : {
987 1 : ReportError(CE_Failure, CPLE_AppDefined,
988 : "Too many blocks: %d x %d x %d bands", m_nBlocksPerRow,
989 : m_nBlocksPerColumn, l_nBands);
990 1 : return false;
991 : }
992 26564 : return true;
993 : }
994 :
995 : /************************************************************************/
996 : /* SetStructuralMDFromParent() */
997 : /************************************************************************/
998 :
999 1051 : void GTiffDataset::SetStructuralMDFromParent(GTiffDataset *poParentDS)
1000 : {
1001 1051 : m_bBlockOrderRowMajor = poParentDS->m_bBlockOrderRowMajor;
1002 1051 : m_bLeaderSizeAsUInt4 = poParentDS->m_bLeaderSizeAsUInt4;
1003 1051 : m_bTrailerRepeatedLast4BytesRepeated =
1004 1051 : poParentDS->m_bTrailerRepeatedLast4BytesRepeated;
1005 1051 : m_bMaskInterleavedWithImagery = poParentDS->m_bMaskInterleavedWithImagery;
1006 1051 : m_bWriteEmptyTiles = poParentDS->m_bWriteEmptyTiles;
1007 1051 : }
1008 :
1009 : /************************************************************************/
1010 : /* ScanDirectories() */
1011 : /* */
1012 : /* Scan through all the directories finding overviews, masks */
1013 : /* and subdatasets. */
1014 : /************************************************************************/
1015 :
1016 806577 : void GTiffDataset::ScanDirectories()
1017 :
1018 : {
1019 : /* -------------------------------------------------------------------- */
1020 : /* We only scan once. We do not scan for non-base datasets. */
1021 : /* -------------------------------------------------------------------- */
1022 806577 : if (!m_bScanDeferred)
1023 800404 : return;
1024 :
1025 6465 : m_bScanDeferred = false;
1026 :
1027 6465 : if (m_poBaseDS)
1028 292 : return;
1029 :
1030 6173 : Crystalize();
1031 :
1032 6179 : CPLDebug("GTiff", "ScanDirectories()");
1033 :
1034 : /* ==================================================================== */
1035 : /* Scan all directories. */
1036 : /* ==================================================================== */
1037 12358 : CPLStringList aosSubdatasets;
1038 6179 : int iDirIndex = 0;
1039 :
1040 6179 : FlushDirectory();
1041 :
1042 1038 : do
1043 : {
1044 7217 : toff_t nTopDir = TIFFCurrentDirOffset(m_hTIFF);
1045 7217 : uint32_t nSubType = 0;
1046 :
1047 7217 : ++iDirIndex;
1048 :
1049 7217 : toff_t *tmpSubIFDOffsets = nullptr;
1050 7217 : toff_t *subIFDOffsets = nullptr;
1051 7217 : uint16_t nSubIFDs = 0;
1052 7217 : if (TIFFGetField(m_hTIFF, TIFFTAG_SUBIFD, &nSubIFDs,
1053 7217 : &tmpSubIFDOffsets) &&
1054 : iDirIndex == 1)
1055 : {
1056 : subIFDOffsets =
1057 13 : static_cast<toff_t *>(CPLMalloc(nSubIFDs * sizeof(toff_t)));
1058 39 : for (uint16_t iSubIFD = 0; iSubIFD < nSubIFDs; iSubIFD++)
1059 : {
1060 26 : subIFDOffsets[iSubIFD] = tmpSubIFDOffsets[iSubIFD];
1061 : }
1062 : }
1063 :
1064 : // early break for backwards compatibility: if the first directory read
1065 : // is also the last, and there are no subIFDs, no use continuing
1066 7217 : if (iDirIndex == 1 && nSubIFDs == 0 && TIFFLastDirectory(m_hTIFF))
1067 : {
1068 5556 : CPLFree(subIFDOffsets);
1069 5556 : break;
1070 : }
1071 :
1072 3348 : for (uint16_t iSubIFD = 0; iSubIFD <= nSubIFDs; iSubIFD++)
1073 : {
1074 1695 : toff_t nThisDir = nTopDir;
1075 1695 : if (iSubIFD > 0 && iDirIndex > 1) // don't read subIFDs if we are
1076 : // not in the original directory
1077 8 : break;
1078 1687 : if (iSubIFD > 0)
1079 : {
1080 : // make static analyzer happy. subIFDOffsets cannot be null if
1081 : // iSubIFD>0
1082 26 : assert(subIFDOffsets != nullptr);
1083 26 : nThisDir = subIFDOffsets[iSubIFD - 1];
1084 : // CPLDebug("GTiff", "Opened subIFD %d/%d at offset %llu.",
1085 : // iSubIFD, nSubIFDs, nThisDir);
1086 26 : if (!TIFFSetSubDirectory(m_hTIFF, nThisDir))
1087 0 : break;
1088 : }
1089 :
1090 1687 : if (!TIFFGetField(m_hTIFF, TIFFTAG_SUBFILETYPE, &nSubType))
1091 388 : nSubType = 0;
1092 :
1093 : /* Embedded overview of the main image */
1094 1687 : if ((nSubType & FILETYPE_REDUCEDIMAGE) != 0 &&
1095 1201 : (nSubType & FILETYPE_MASK) == 0 &&
1096 1112 : ((nSubIFDs == 0 && iDirIndex != 1) || iSubIFD > 0) &&
1097 864 : m_nOverviewCount < 30 /* to avoid DoS */)
1098 : {
1099 864 : GTiffDataset *poODS = new GTiffDataset();
1100 864 : poODS->ShareLockWithParentDataset(this);
1101 864 : poODS->SetStructuralMDFromParent(this);
1102 864 : if (m_bHasGotSiblingFiles)
1103 169 : poODS->oOvManager.TransferSiblingFiles(
1104 : CSLDuplicate(GetSiblingFiles()));
1105 864 : poODS->m_pszFilename = CPLStrdup(m_pszFilename);
1106 864 : poODS->m_nColorTableMultiplier = m_nColorTableMultiplier;
1107 864 : if (poODS->OpenOffset(VSI_TIFFOpenChild(m_hTIFF), nThisDir,
1108 1728 : eAccess) != CE_None ||
1109 864 : poODS->GetRasterCount() != GetRasterCount())
1110 : {
1111 0 : delete poODS;
1112 : }
1113 : else
1114 : {
1115 864 : CPLDebug("GTiff", "Opened %dx%d overview.",
1116 : poODS->GetRasterXSize(), poODS->GetRasterYSize());
1117 864 : ++m_nOverviewCount;
1118 1728 : m_papoOverviewDS = static_cast<GTiffDataset **>(CPLRealloc(
1119 864 : m_papoOverviewDS, m_nOverviewCount * (sizeof(void *))));
1120 864 : m_papoOverviewDS[m_nOverviewCount - 1] = poODS;
1121 864 : poODS->m_poBaseDS = this;
1122 864 : poODS->m_bIsOverview = true;
1123 :
1124 : // Propagate a few compression related settings that are
1125 : // no preserved at the TIFF tag level, but may be set in
1126 : // the GDAL_METADATA tag in the IMAGE_STRUCTURE domain
1127 : // Note: this might not be totally reflecting the reality
1128 : // if users have created overviews with different settings
1129 : // but this is probably better than the default ones
1130 864 : poODS->m_nWebPLevel = m_nWebPLevel;
1131 : // below is not a copy & paste error: we transfer the
1132 : // m_dfMaxZErrorOverview overview of the parent to
1133 : // m_dfMaxZError of the overview
1134 864 : poODS->m_dfMaxZError = m_dfMaxZErrorOverview;
1135 864 : poODS->m_dfMaxZErrorOverview = m_dfMaxZErrorOverview;
1136 : #if HAVE_JXL
1137 864 : poODS->m_bJXLLossless = m_bJXLLossless;
1138 864 : poODS->m_fJXLDistance = m_fJXLDistance;
1139 864 : poODS->m_fJXLAlphaDistance = m_fJXLAlphaDistance;
1140 864 : poODS->m_nJXLEffort = m_nJXLEffort;
1141 : #endif
1142 : // Those ones are not serialized currently..
1143 : // poODS->m_nZLevel = m_nZLevel;
1144 : // poODS->m_nLZMAPreset = m_nLZMAPreset;
1145 : // poODS->m_nZSTDLevel = m_nZSTDLevel;
1146 864 : }
1147 : }
1148 : // Embedded mask of the main image.
1149 823 : else if ((nSubType & FILETYPE_MASK) != 0 &&
1150 187 : (nSubType & FILETYPE_REDUCEDIMAGE) == 0 &&
1151 98 : ((nSubIFDs == 0 && iDirIndex != 1) || iSubIFD > 0) &&
1152 98 : m_poMaskDS == nullptr)
1153 : {
1154 98 : m_poMaskDS = new GTiffDataset();
1155 98 : m_poMaskDS->ShareLockWithParentDataset(this);
1156 98 : m_poMaskDS->SetStructuralMDFromParent(this);
1157 98 : m_poMaskDS->m_pszFilename = CPLStrdup(m_pszFilename);
1158 :
1159 : // The TIFF6 specification - page 37 - only allows 1
1160 : // SamplesPerPixel and 1 BitsPerSample Here we support either 1
1161 : // or 8 bit per sample and we support either 1 sample per pixel
1162 : // or as many samples as in the main image We don't check the
1163 : // value of the PhotometricInterpretation tag, which should be
1164 : // set to "Transparency mask" (4) according to the specification
1165 : // (page 36). However, the TIFF6 specification allows image
1166 : // masks to have a higher resolution than the main image, what
1167 : // we don't support here.
1168 :
1169 98 : if (m_poMaskDS->OpenOffset(VSI_TIFFOpenChild(m_hTIFF), nThisDir,
1170 98 : eAccess) != CE_None ||
1171 98 : m_poMaskDS->GetRasterCount() == 0 ||
1172 98 : !(m_poMaskDS->GetRasterCount() == 1 ||
1173 3 : m_poMaskDS->GetRasterCount() == GetRasterCount()) ||
1174 98 : m_poMaskDS->GetRasterXSize() != GetRasterXSize() ||
1175 294 : m_poMaskDS->GetRasterYSize() != GetRasterYSize() ||
1176 98 : m_poMaskDS->GetRasterBand(1)->GetRasterDataType() !=
1177 : GDT_Byte)
1178 : {
1179 0 : delete m_poMaskDS;
1180 0 : m_poMaskDS = nullptr;
1181 : }
1182 : else
1183 : {
1184 98 : CPLDebug("GTiff", "Opened band mask.");
1185 98 : m_poMaskDS->m_poBaseDS = this;
1186 98 : m_poMaskDS->m_poImageryDS = this;
1187 :
1188 196 : m_poMaskDS->m_bPromoteTo8Bits =
1189 98 : CPLTestBool(CPLGetConfigOption(
1190 : "GDAL_TIFF_INTERNAL_MASK_TO_8BIT", "YES"));
1191 : }
1192 : }
1193 :
1194 : // Embedded mask of an overview. The TIFF6 specification allows the
1195 : // combination of the FILETYPE_xxxx masks.
1196 725 : else if ((nSubType & FILETYPE_REDUCEDIMAGE) != 0 &&
1197 337 : (nSubType & FILETYPE_MASK) != 0 &&
1198 89 : ((nSubIFDs == 0 && iDirIndex != 1) || iSubIFD > 0))
1199 : {
1200 89 : GTiffDataset *poDS = new GTiffDataset();
1201 89 : poDS->ShareLockWithParentDataset(this);
1202 89 : poDS->SetStructuralMDFromParent(this);
1203 89 : poDS->m_pszFilename = CPLStrdup(m_pszFilename);
1204 89 : if (poDS->OpenOffset(VSI_TIFFOpenChild(m_hTIFF), nThisDir,
1205 89 : eAccess) != CE_None ||
1206 178 : poDS->GetRasterCount() == 0 ||
1207 89 : poDS->GetRasterBand(1)->GetRasterDataType() != GDT_Byte)
1208 : {
1209 0 : delete poDS;
1210 : }
1211 : else
1212 : {
1213 89 : int i = 0; // Used after for.
1214 129 : for (; i < m_nOverviewCount; ++i)
1215 : {
1216 129 : auto poOvrDS = cpl::down_cast<GTiffDataset *>(
1217 129 : GDALDataset::FromHandle(m_papoOverviewDS[i]));
1218 347 : if (poOvrDS->m_poMaskDS == nullptr &&
1219 89 : poDS->GetRasterXSize() ==
1220 89 : m_papoOverviewDS[i]->GetRasterXSize() &&
1221 89 : poDS->GetRasterYSize() ==
1222 307 : m_papoOverviewDS[i]->GetRasterYSize() &&
1223 89 : (poDS->GetRasterCount() == 1 ||
1224 0 : poDS->GetRasterCount() == GetRasterCount()))
1225 : {
1226 89 : CPLDebug(
1227 : "GTiff", "Opened band mask for %dx%d overview.",
1228 : poDS->GetRasterXSize(), poDS->GetRasterYSize());
1229 89 : poDS->m_poImageryDS = poOvrDS;
1230 89 : poOvrDS->m_poMaskDS = poDS;
1231 89 : poDS->m_bPromoteTo8Bits =
1232 89 : CPLTestBool(CPLGetConfigOption(
1233 : "GDAL_TIFF_INTERNAL_MASK_TO_8BIT", "YES"));
1234 89 : poDS->m_poBaseDS = this;
1235 89 : break;
1236 : }
1237 : }
1238 89 : if (i == m_nOverviewCount)
1239 : {
1240 0 : delete poDS;
1241 : }
1242 89 : }
1243 : }
1244 636 : else if (!m_bSingleIFDOpened &&
1245 631 : (nSubType == 0 || nSubType == FILETYPE_PAGE))
1246 : {
1247 383 : uint32_t nXSize = 0;
1248 383 : uint32_t nYSize = 0;
1249 :
1250 383 : TIFFGetField(m_hTIFF, TIFFTAG_IMAGEWIDTH, &nXSize);
1251 383 : TIFFGetField(m_hTIFF, TIFFTAG_IMAGELENGTH, &nYSize);
1252 :
1253 : // For Geodetic TIFF grids (GTG)
1254 : // (https://proj.org/specifications/geodetictiffgrids.html)
1255 : // extract the grid_name to put it in the description
1256 766 : std::string osFriendlyName;
1257 383 : char *pszText = nullptr;
1258 442 : if (TIFFGetField(m_hTIFF, TIFFTAG_GDAL_METADATA, &pszText) &&
1259 59 : strstr(pszText, "grid_name") != nullptr)
1260 : {
1261 4 : CPLXMLNode *psRoot = CPLParseXMLString(pszText);
1262 : const CPLXMLNode *psItem =
1263 4 : psRoot ? CPLGetXMLNode(psRoot, "=GDALMetadata")
1264 4 : : nullptr;
1265 4 : if (psItem)
1266 4 : psItem = psItem->psChild;
1267 4 : for (; psItem != nullptr; psItem = psItem->psNext)
1268 : {
1269 :
1270 4 : if (psItem->eType != CXT_Element ||
1271 4 : !EQUAL(psItem->pszValue, "Item"))
1272 0 : continue;
1273 :
1274 : const char *pszKey =
1275 4 : CPLGetXMLValue(psItem, "name", nullptr);
1276 : const char *pszValue =
1277 4 : CPLGetXMLValue(psItem, nullptr, nullptr);
1278 : int nBand =
1279 4 : atoi(CPLGetXMLValue(psItem, "sample", "-1"));
1280 4 : if (pszKey && pszValue && nBand <= 0 &&
1281 4 : EQUAL(pszKey, "grid_name"))
1282 : {
1283 4 : osFriendlyName = ": ";
1284 4 : osFriendlyName += pszValue;
1285 4 : break;
1286 : }
1287 : }
1288 :
1289 4 : CPLDestroyXMLNode(psRoot);
1290 : }
1291 :
1292 383 : if (nXSize > INT_MAX || nYSize > INT_MAX)
1293 : {
1294 1 : CPLDebug("GTiff",
1295 : "Skipping directory with too large image: %u x %u",
1296 : nXSize, nYSize);
1297 : }
1298 : else
1299 : {
1300 382 : uint16_t nSPP = 0;
1301 382 : if (!TIFFGetField(m_hTIFF, TIFFTAG_SAMPLESPERPIXEL, &nSPP))
1302 0 : nSPP = 1;
1303 :
1304 764 : CPLString osName, osDesc;
1305 : osName.Printf("SUBDATASET_%d_NAME=GTIFF_DIR:%d:%s",
1306 382 : iDirIndex, iDirIndex, m_pszFilename);
1307 : osDesc.Printf(
1308 : "SUBDATASET_%d_DESC=Page %d (%dP x %dL x %dB)",
1309 : iDirIndex, iDirIndex, static_cast<int>(nXSize),
1310 382 : static_cast<int>(nYSize), nSPP);
1311 382 : osDesc += osFriendlyName;
1312 :
1313 382 : aosSubdatasets.AddString(osName);
1314 382 : aosSubdatasets.AddString(osDesc);
1315 : }
1316 : }
1317 : }
1318 1661 : CPLFree(subIFDOffsets);
1319 :
1320 : // Make sure we are stepping from the expected directory regardless
1321 : // of churn done processing the above.
1322 1661 : if (TIFFCurrentDirOffset(m_hTIFF) != nTopDir)
1323 13 : TIFFSetSubDirectory(m_hTIFF, nTopDir);
1324 2699 : } while (!m_bSingleIFDOpened && !TIFFLastDirectory(m_hTIFF) &&
1325 1038 : TIFFReadDirectory(m_hTIFF) != 0);
1326 :
1327 6179 : ReloadDirectory();
1328 :
1329 : // If we have a mask for the main image, loop over the overviews, and if
1330 : // they have a mask, let's set this mask as an overview of the main mask.
1331 6179 : if (m_poMaskDS != nullptr)
1332 : {
1333 187 : for (int i = 0; i < m_nOverviewCount; ++i)
1334 : {
1335 89 : if (cpl::down_cast<GTiffDataset *>(
1336 89 : GDALDataset::FromHandle(m_papoOverviewDS[i]))
1337 89 : ->m_poMaskDS != nullptr)
1338 : {
1339 89 : ++m_poMaskDS->m_nOverviewCount;
1340 178 : m_poMaskDS->m_papoOverviewDS =
1341 178 : static_cast<GTiffDataset **>(CPLRealloc(
1342 89 : m_poMaskDS->m_papoOverviewDS,
1343 89 : m_poMaskDS->m_nOverviewCount * (sizeof(void *))));
1344 89 : m_poMaskDS->m_papoOverviewDS[m_poMaskDS->m_nOverviewCount - 1] =
1345 89 : cpl::down_cast<GTiffDataset *>(
1346 89 : GDALDataset::FromHandle(m_papoOverviewDS[i]))
1347 89 : ->m_poMaskDS;
1348 : }
1349 : }
1350 : }
1351 :
1352 : // Assign color interpretation from main dataset
1353 6179 : const int l_nBands = GetRasterCount();
1354 7042 : for (int iOvr = 0; iOvr < m_nOverviewCount; ++iOvr)
1355 : {
1356 2385 : for (int i = 1; i <= l_nBands; i++)
1357 : {
1358 0 : auto poBand = dynamic_cast<GTiffRasterBand *>(
1359 1522 : m_papoOverviewDS[iOvr]->GetRasterBand(i));
1360 1522 : if (poBand)
1361 1521 : poBand->m_eBandInterp =
1362 1522 : GetRasterBand(i)->GetColorInterpretation();
1363 : }
1364 : }
1365 :
1366 : /* -------------------------------------------------------------------- */
1367 : /* Only keep track of subdatasets if we have more than one */
1368 : /* subdataset (pair). */
1369 : /* -------------------------------------------------------------------- */
1370 6178 : if (aosSubdatasets.size() > 2)
1371 : {
1372 10 : m_oGTiffMDMD.SetMetadata(aosSubdatasets.List(), "SUBDATASETS");
1373 : }
1374 : }
1375 :
1376 : /************************************************************************/
1377 : /* GetInternalHandle() */
1378 : /************************************************************************/
1379 :
1380 2107 : void *GTiffDataset::GetInternalHandle(const char * /* pszHandleName */)
1381 :
1382 : {
1383 2107 : return m_hTIFF;
1384 : }
1385 :
1386 : /************************************************************************/
1387 : /* GetFileList() */
1388 : /************************************************************************/
1389 :
1390 2434 : char **GTiffDataset::GetFileList()
1391 :
1392 : {
1393 2434 : LoadGeoreferencingAndPamIfNeeded();
1394 :
1395 2434 : char **papszFileList = GDALPamDataset::GetFileList();
1396 :
1397 2434 : LoadMetadata();
1398 2434 : if (nullptr != m_papszMetadataFiles)
1399 : {
1400 77 : for (int i = 0; m_papszMetadataFiles[i] != nullptr; ++i)
1401 : {
1402 44 : if (CSLFindString(papszFileList, m_papszMetadataFiles[i]) < 0)
1403 : {
1404 : papszFileList =
1405 44 : CSLAddString(papszFileList, m_papszMetadataFiles[i]);
1406 : }
1407 : }
1408 : }
1409 :
1410 2440 : if (m_pszGeorefFilename &&
1411 6 : CSLFindString(papszFileList, m_pszGeorefFilename) == -1)
1412 : {
1413 6 : papszFileList = CSLAddString(papszFileList, m_pszGeorefFilename);
1414 : }
1415 :
1416 2434 : if (m_nXMLGeorefSrcIndex >= 0)
1417 2434 : LookForProjection();
1418 :
1419 2435 : if (m_pszXMLFilename &&
1420 1 : CSLFindString(papszFileList, m_pszXMLFilename) == -1)
1421 : {
1422 1 : papszFileList = CSLAddString(papszFileList, m_pszXMLFilename);
1423 : }
1424 :
1425 2434 : return papszFileList;
1426 : }
1427 :
1428 : /************************************************************************/
1429 : /* GetRawBinaryLayout() */
1430 : /************************************************************************/
1431 :
1432 9 : bool GTiffDataset::GetRawBinaryLayout(GDALDataset::RawBinaryLayout &sLayout)
1433 : {
1434 9 : if (eAccess == GA_Update)
1435 : {
1436 3 : FlushCache(false);
1437 3 : Crystalize();
1438 : }
1439 :
1440 9 : if (m_nCompression != COMPRESSION_NONE)
1441 1 : return false;
1442 8 : if (!CPLIsPowerOfTwo(m_nBitsPerSample) || m_nBitsPerSample < 8)
1443 0 : return false;
1444 8 : const auto eDT = GetRasterBand(1)->GetRasterDataType();
1445 8 : if (GDALDataTypeIsComplex(eDT))
1446 0 : return false;
1447 :
1448 8 : toff_t *panByteCounts = nullptr;
1449 8 : toff_t *panOffsets = nullptr;
1450 8 : const bool bIsTiled = CPL_TO_BOOL(TIFFIsTiled(m_hTIFF));
1451 :
1452 16 : if (!((bIsTiled &&
1453 3 : TIFFGetField(m_hTIFF, TIFFTAG_TILEBYTECOUNTS, &panByteCounts) &&
1454 3 : TIFFGetField(m_hTIFF, TIFFTAG_TILEOFFSETS, &panOffsets)) ||
1455 5 : (!bIsTiled &&
1456 5 : TIFFGetField(m_hTIFF, TIFFTAG_STRIPBYTECOUNTS, &panByteCounts) &&
1457 5 : TIFFGetField(m_hTIFF, TIFFTAG_STRIPOFFSETS, &panOffsets))))
1458 : {
1459 0 : return false;
1460 : }
1461 :
1462 8 : const int nDTSize = GDALGetDataTypeSizeBytes(eDT);
1463 8 : vsi_l_offset nImgOffset = panOffsets[0];
1464 16 : GIntBig nPixelOffset = (m_nPlanarConfig == PLANARCONFIG_CONTIG)
1465 8 : ? static_cast<GIntBig>(nDTSize) * nBands
1466 : : nDTSize;
1467 8 : GIntBig nLineOffset = nPixelOffset * nRasterXSize;
1468 8 : GIntBig nBandOffset =
1469 8 : (m_nPlanarConfig == PLANARCONFIG_CONTIG && nBands > 1) ? nDTSize : 0;
1470 8 : RawBinaryLayout::Interleaving eInterleaving =
1471 12 : (nBands == 1) ? RawBinaryLayout::Interleaving::UNKNOWN
1472 4 : : (m_nPlanarConfig == PLANARCONFIG_CONTIG)
1473 4 : ? RawBinaryLayout::Interleaving::BIP
1474 : : RawBinaryLayout::Interleaving::BSQ;
1475 8 : if (bIsTiled)
1476 : {
1477 : // Only a single block tiled file with same dimension as the raster
1478 : // might be acceptable
1479 3 : if (m_nBlockXSize != nRasterXSize || m_nBlockYSize != nRasterYSize)
1480 1 : return false;
1481 2 : if (nBands > 1 && m_nPlanarConfig != PLANARCONFIG_CONTIG)
1482 : {
1483 1 : nBandOffset = static_cast<GIntBig>(panOffsets[1]) -
1484 1 : static_cast<GIntBig>(panOffsets[0]);
1485 2 : for (int i = 2; i < nBands; i++)
1486 : {
1487 1 : if (static_cast<GIntBig>(panOffsets[i]) -
1488 1 : static_cast<GIntBig>(panOffsets[i - 1]) !=
1489 : nBandOffset)
1490 0 : return false;
1491 : }
1492 : }
1493 : }
1494 : else
1495 : {
1496 5 : const int nStrips = DIV_ROUND_UP(nRasterYSize, m_nRowsPerStrip);
1497 5 : if (nBands == 1 || m_nPlanarConfig == PLANARCONFIG_CONTIG)
1498 : {
1499 4 : vsi_l_offset nLastStripEnd = panOffsets[0] + panByteCounts[0];
1500 16 : for (int iStrip = 1; iStrip < nStrips; iStrip++)
1501 : {
1502 12 : if (nLastStripEnd != panOffsets[iStrip])
1503 0 : return false;
1504 12 : nLastStripEnd = panOffsets[iStrip] + panByteCounts[iStrip];
1505 4 : }
1506 : }
1507 : else
1508 : {
1509 : // Note: we could potentially have BIL order with m_nRowsPerStrip ==
1510 : // 1 and if strips are ordered strip_line_1_band_1, ...,
1511 : // strip_line_1_band_N, strip_line2_band1, ... strip_line2_band_N,
1512 : // etc.... but that'd be faily exotic ! So only detect BSQ layout
1513 : // here
1514 1 : nBandOffset = static_cast<GIntBig>(panOffsets[nStrips]) -
1515 1 : static_cast<GIntBig>(panOffsets[0]);
1516 4 : for (int i = 0; i < nBands; i++)
1517 : {
1518 3 : uint32_t iStripOffset = nStrips * i;
1519 3 : vsi_l_offset nLastStripEnd =
1520 3 : panOffsets[iStripOffset] + panByteCounts[iStripOffset];
1521 3 : for (int iStrip = 1; iStrip < nStrips; iStrip++)
1522 : {
1523 0 : if (nLastStripEnd != panOffsets[iStripOffset + iStrip])
1524 0 : return false;
1525 0 : nLastStripEnd = panOffsets[iStripOffset + iStrip] +
1526 0 : panByteCounts[iStripOffset + iStrip];
1527 : }
1528 3 : if (i >= 2 && static_cast<GIntBig>(panOffsets[iStripOffset]) -
1529 1 : static_cast<GIntBig>(
1530 1 : panOffsets[iStripOffset - nStrips]) !=
1531 : nBandOffset)
1532 : {
1533 0 : return false;
1534 : }
1535 : }
1536 : }
1537 : }
1538 :
1539 7 : sLayout.osRawFilename = m_pszFilename;
1540 7 : sLayout.eInterleaving = eInterleaving;
1541 7 : sLayout.eDataType = eDT;
1542 : #ifdef CPL_LSB
1543 7 : sLayout.bLittleEndianOrder = !TIFFIsByteSwapped(m_hTIFF);
1544 : #else
1545 : sLayout.bLittleEndianOrder = TIFFIsByteSwapped(m_hTIFF);
1546 : #endif
1547 7 : sLayout.nImageOffset = nImgOffset;
1548 7 : sLayout.nPixelOffset = nPixelOffset;
1549 7 : sLayout.nLineOffset = nLineOffset;
1550 7 : sLayout.nBandOffset = nBandOffset;
1551 :
1552 7 : return true;
1553 : }
1554 :
1555 : /************************************************************************/
1556 : /* GTiffDatasetLibGeotiffErrorCallback() */
1557 : /************************************************************************/
1558 :
1559 0 : static void GTiffDatasetLibGeotiffErrorCallback(GTIF *, int level,
1560 : const char *pszMsg, ...)
1561 : {
1562 : va_list ap;
1563 0 : va_start(ap, pszMsg);
1564 0 : CPLErrorV((level == LIBGEOTIFF_WARNING) ? CE_Warning : CE_Failure,
1565 : CPLE_AppDefined, pszMsg, ap);
1566 0 : va_end(ap);
1567 0 : }
1568 :
1569 : /************************************************************************/
1570 : /* GTIFNew() */
1571 : /************************************************************************/
1572 :
1573 26298 : /* static */ GTIF *GTiffDataset::GTIFNew(TIFF *hTIFF)
1574 : {
1575 26298 : GTIF *gtif = GTIFNewEx(hTIFF, GTiffDatasetLibGeotiffErrorCallback, nullptr);
1576 26298 : if (gtif)
1577 : {
1578 26298 : GTIFAttachPROJContext(gtif, OSRGetProjTLSContext());
1579 : }
1580 26298 : return gtif;
1581 : }
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