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 29225 : const GTIFFTag *GTiffDataset::GetTIFFTags()
63 : {
64 29225 : return asTIFFTags;
65 : }
66 :
67 : /************************************************************************/
68 : /* GTiffDataset() */
69 : /************************************************************************/
70 :
71 32603 : 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 32606 : CPLTestBool(CPLGetConfigOption("GTIFF_DONT_WRITE_BLOCKS", "NO"))),
91 : m_bIsFinalized(false),
92 : m_bIgnoreReadErrors(
93 32602 : CPLTestBool(CPLGetConfigOption("GTIFF_IGNORE_READ_ERRORS", "NO"))),
94 32606 : 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 97813 : 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 32606 : CPLGetConfigOption("GTIFF_VIRTUAL_MEM_IO", "NO");
109 32606 : if (EQUAL(pszVirtualMemIO, "IF_ENOUGH_RAM"))
110 0 : m_eVirtualMemIOUsage = VirtualMemIOEnum::IF_ENOUGH_RAM;
111 32606 : else if (CPLTestBool(pszVirtualMemIO))
112 41 : m_eVirtualMemIOUsage = VirtualMemIOEnum::YES;
113 :
114 32602 : m_oSRS.SetAxisMappingStrategy(OAMS_TRADITIONAL_GIS_ORDER);
115 32476 : }
116 :
117 : /************************************************************************/
118 : /* ~GTiffDataset() */
119 : /************************************************************************/
120 :
121 65208 : GTiffDataset::~GTiffDataset()
122 :
123 : {
124 32605 : GTiffDataset::Close();
125 65206 : }
126 :
127 : /************************************************************************/
128 : /* Close() */
129 : /************************************************************************/
130 :
131 58525 : CPLErr GTiffDataset::Close()
132 : {
133 58525 : if (nOpenFlags != OPEN_FLAGS_CLOSED)
134 : {
135 32605 : auto [eErr, bDroppedRef] = Finalize();
136 :
137 32603 : if (m_pszTmpFilename)
138 : {
139 4 : VSIUnlink(m_pszTmpFilename);
140 4 : CPLFree(m_pszTmpFilename);
141 : }
142 :
143 32603 : if (GDALPamDataset::Close() != CE_None)
144 0 : eErr = CE_Failure;
145 32603 : return eErr;
146 : }
147 25920 : 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 32688 : std::tuple<CPLErr, bool> GTiffDataset::Finalize()
157 : {
158 32688 : bool bDroppedRef = false;
159 32688 : if (m_bIsFinalized)
160 166 : return std::tuple(CE_None, bDroppedRef);
161 :
162 32605 : CPLErr eErr = CE_None;
163 32605 : Crystalize();
164 :
165 32605 : 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 32605 : 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 32605 : if (m_psVirtualMemIOMapping)
184 11 : CPLVirtualMemFree(m_psVirtualMemIOMapping);
185 32605 : m_psVirtualMemIOMapping = nullptr;
186 :
187 : /* -------------------------------------------------------------------- */
188 : /* Fill in missing blocks with empty data. */
189 : /* -------------------------------------------------------------------- */
190 32605 : if (m_bFillEmptyTilesAtClosing)
191 : {
192 : /* --------------------------------------------------------------------
193 : */
194 : /* Ensure any blocks write cached by GDAL gets pushed through libtiff.
195 : */
196 : /* --------------------------------------------------------------------
197 : */
198 7737 : if (FlushCacheInternal(true, /* at closing */
199 7737 : false /* do not call FlushDirectory */) !=
200 : CE_None)
201 : {
202 0 : eErr = CE_Failure;
203 : }
204 :
205 7737 : if (FillEmptyTiles() != CE_None)
206 : {
207 9 : eErr = CE_Failure;
208 : }
209 7737 : 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 32605 : if (FlushCacheInternal(true /* at closing */, true) != CE_None)
217 : {
218 7 : eErr = CE_Failure;
219 : }
220 :
221 : // Destroy compression queue
222 32604 : 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 32604 : 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 32604 : 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 30809 : const int nOldOverviewCount = m_nOverviewCount;
258 30809 : m_nOverviewCount = 0;
259 32239 : for (int i = 0; i < nOldOverviewCount; ++i)
260 : {
261 1430 : delete m_papoOverviewDS[i];
262 1430 : bDroppedRef = true;
263 : }
264 :
265 30869 : for (int i = 0; i < m_nJPEGOverviewCountOri; ++i)
266 : {
267 60 : delete m_papoJPEGOverviewDS[i];
268 60 : bDroppedRef = true;
269 : }
270 30809 : m_nJPEGOverviewCount = 0;
271 30809 : m_nJPEGOverviewCountOri = 0;
272 30809 : CPLFree(m_papoJPEGOverviewDS);
273 30799 : 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 32594 : CPLFree(m_papoOverviewDS);
279 32605 : 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 32605 : 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 32605 : m_poColorTable.reset();
296 :
297 32602 : if (m_hTIFF)
298 : {
299 32602 : XTIFFClose(m_hTIFF);
300 32601 : m_hTIFF = nullptr;
301 : }
302 :
303 32601 : if (!m_poBaseDS)
304 : {
305 30809 : if (m_fpL != nullptr)
306 : {
307 30809 : 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 :
332 30809 : if (IsMarkedSuppressOnClose())
333 455 : m_fpL->CancelCreation();
334 :
335 30810 : if (VSIFCloseL(m_fpL) != 0)
336 : {
337 0 : eErr = CE_Failure;
338 0 : ReportError(CE_Failure, CPLE_FileIO, "I/O error");
339 : }
340 30809 : m_fpL = nullptr;
341 : }
342 : }
343 :
344 32601 : if (m_fpToWrite != nullptr)
345 : {
346 7 : if (VSIFCloseL(m_fpToWrite) != 0)
347 : {
348 0 : eErr = CE_Failure;
349 0 : ReportError(CE_Failure, CPLE_FileIO, "I/O error");
350 : }
351 7 : m_fpToWrite = nullptr;
352 : }
353 :
354 32601 : m_aoGCPs.clear();
355 :
356 32604 : CSLDestroy(m_papszCreationOptions);
357 32605 : m_papszCreationOptions = nullptr;
358 :
359 32605 : CPLFree(m_pabyTempWriteBuffer);
360 32605 : m_pabyTempWriteBuffer = nullptr;
361 :
362 32605 : m_bIMDRPCMetadataLoaded = false;
363 32605 : CSLDestroy(m_papszMetadataFiles);
364 32605 : m_papszMetadataFiles = nullptr;
365 :
366 32605 : VSIFree(m_pTempBufferForCommonDirectIO);
367 32604 : m_pTempBufferForCommonDirectIO = nullptr;
368 :
369 32604 : CPLFree(m_panMaskOffsetLsb);
370 32605 : m_panMaskOffsetLsb = nullptr;
371 :
372 32605 : CPLFree(m_pszVertUnit);
373 32605 : m_pszVertUnit = nullptr;
374 :
375 32605 : CPLFree(m_pszFilename);
376 32605 : m_pszFilename = nullptr;
377 :
378 32605 : CPLFree(m_pszGeorefFilename);
379 32604 : m_pszGeorefFilename = nullptr;
380 :
381 32604 : CPLFree(m_pszXMLFilename);
382 32604 : m_pszXMLFilename = nullptr;
383 :
384 32604 : m_bIsFinalized = true;
385 :
386 32604 : return std::tuple(eErr, bDroppedRef);
387 : }
388 :
389 : /************************************************************************/
390 : /* CloseDependentDatasets() */
391 : /************************************************************************/
392 :
393 83 : int GTiffDataset::CloseDependentDatasets()
394 : {
395 83 : if (m_poBaseDS)
396 0 : return FALSE;
397 :
398 83 : int bHasDroppedRef = GDALPamDataset::CloseDependentDatasets();
399 :
400 : // We ignore eErr as it is not relevant for CloseDependentDatasets(),
401 : // which is called in a "garbage collection" context.
402 83 : auto [eErr, bHasDroppedRefInFinalize] = Finalize();
403 83 : if (bHasDroppedRefInFinalize)
404 1 : bHasDroppedRef = true;
405 :
406 83 : return bHasDroppedRef;
407 : }
408 :
409 : /************************************************************************/
410 : /* IsWholeBlock() */
411 : /************************************************************************/
412 :
413 28 : bool GTiffDataset::IsWholeBlock(int nXOff, int nYOff, int nXSize,
414 : int nYSize) const
415 : {
416 28 : if ((nXOff % m_nBlockXSize) != 0 || (nYOff % m_nBlockYSize) != 0)
417 : {
418 0 : return false;
419 : }
420 28 : if (TIFFIsTiled(m_hTIFF))
421 : {
422 3 : return nXSize == m_nBlockXSize && nYSize == m_nBlockYSize;
423 : }
424 : else
425 : {
426 48 : return nXSize == m_nBlockXSize &&
427 48 : (nYSize == m_nBlockYSize || nYOff + nYSize == nRasterYSize);
428 : }
429 : }
430 :
431 : /************************************************************************/
432 : /* IRasterIO() */
433 : /************************************************************************/
434 :
435 437826 : CPLErr GTiffDataset::IRasterIO(GDALRWFlag eRWFlag, int nXOff, int nYOff,
436 : int nXSize, int nYSize, void *pData,
437 : int nBufXSize, int nBufYSize,
438 : GDALDataType eBufType, int nBandCount,
439 : BANDMAP_TYPE panBandMap, GSpacing nPixelSpace,
440 : GSpacing nLineSpace, GSpacing nBandSpace,
441 : GDALRasterIOExtraArg *psExtraArg)
442 :
443 : {
444 : // Try to pass the request to the most appropriate overview dataset.
445 437826 : if (nBufXSize < nXSize && nBufYSize < nYSize)
446 : {
447 157850 : int bTried = FALSE;
448 157850 : if (psExtraArg->eResampleAlg == GRIORA_NearestNeighbour)
449 157698 : ++m_nJPEGOverviewVisibilityCounter;
450 157850 : const CPLErr eErr = TryOverviewRasterIO(
451 : eRWFlag, nXOff, nYOff, nXSize, nYSize, pData, nBufXSize, nBufYSize,
452 : eBufType, nBandCount, panBandMap, nPixelSpace, nLineSpace,
453 : nBandSpace, psExtraArg, &bTried);
454 157850 : if (psExtraArg->eResampleAlg == GRIORA_NearestNeighbour)
455 157698 : --m_nJPEGOverviewVisibilityCounter;
456 157850 : if (bTried)
457 22 : return eErr;
458 : }
459 :
460 437804 : if (m_eVirtualMemIOUsage != VirtualMemIOEnum::NO)
461 : {
462 : const int nErr =
463 649 : VirtualMemIO(eRWFlag, nXOff, nYOff, nXSize, nYSize, pData,
464 : nBufXSize, nBufYSize, eBufType, nBandCount, panBandMap,
465 : nPixelSpace, nLineSpace, nBandSpace, psExtraArg);
466 649 : if (nErr >= 0)
467 608 : return static_cast<CPLErr>(nErr);
468 : }
469 437196 : if (m_bDirectIO)
470 : {
471 : const int nErr =
472 471 : DirectIO(eRWFlag, nXOff, nYOff, nXSize, nYSize, pData, nBufXSize,
473 : nBufYSize, eBufType, nBandCount, panBandMap, nPixelSpace,
474 : nLineSpace, nBandSpace, psExtraArg);
475 471 : if (nErr >= 0)
476 414 : return static_cast<CPLErr>(nErr);
477 : }
478 :
479 436782 : bool bCanUseMultiThreadedRead = false;
480 436782 : if (m_nDisableMultiThreadedRead == 0 && m_poThreadPool &&
481 873712 : eRWFlag == GF_Read && nBufXSize == nXSize && nBufYSize == nYSize &&
482 148 : IsMultiThreadedReadCompatible())
483 : {
484 148 : const int nBlockX1 = nXOff / m_nBlockXSize;
485 148 : const int nBlockY1 = nYOff / m_nBlockYSize;
486 148 : const int nBlockX2 = (nXOff + nXSize - 1) / m_nBlockXSize;
487 148 : const int nBlockY2 = (nYOff + nYSize - 1) / m_nBlockYSize;
488 148 : const int nXBlocks = nBlockX2 - nBlockX1 + 1;
489 148 : const int nYBlocks = nBlockY2 - nBlockY1 + 1;
490 148 : const size_t nBlocks =
491 148 : static_cast<size_t>(nXBlocks) * nYBlocks *
492 148 : (m_nPlanarConfig == PLANARCONFIG_CONTIG ? 1 : nBandCount);
493 148 : if (nBlocks > 1)
494 : {
495 145 : bCanUseMultiThreadedRead = true;
496 : }
497 : }
498 :
499 436782 : void *pBufferedData = nullptr;
500 436782 : const auto poFirstBand = cpl::down_cast<GTiffRasterBand *>(papoBands[0]);
501 436782 : const auto eDataType = poFirstBand->GetRasterDataType();
502 :
503 38626 : if (eAccess == GA_ReadOnly && eRWFlag == GF_Read &&
504 475426 : HasOptimizedReadMultiRange() &&
505 18 : !(bCanUseMultiThreadedRead &&
506 4 : VSI_TIFFGetVSILFile(TIFFClientdata(m_hTIFF))->HasPRead()))
507 : {
508 14 : if (nBands == 1 || m_nPlanarConfig == PLANARCONFIG_CONTIG)
509 : {
510 12 : const int nBandOne = 1;
511 : pBufferedData =
512 12 : CacheMultiRange(nXOff, nYOff, nXSize, nYSize, nBufXSize,
513 12 : nBufYSize, &nBandOne, 1, psExtraArg);
514 : }
515 : else
516 : {
517 : pBufferedData =
518 2 : CacheMultiRange(nXOff, nYOff, nXSize, nYSize, nBufXSize,
519 : nBufYSize, panBandMap, nBandCount, psExtraArg);
520 : }
521 : }
522 436768 : else if (bCanUseMultiThreadedRead)
523 : {
524 145 : return MultiThreadedRead(nXOff, nYOff, nXSize, nYSize, pData, eBufType,
525 : nBandCount, panBandMap, nPixelSpace,
526 145 : nLineSpace, nBandSpace);
527 : }
528 :
529 : // Write optimization when writing whole blocks, by-passing the block cache.
530 : // We require the block cache to be non instantiated to simplify things
531 : // (otherwise we might need to evict corresponding existing blocks from the
532 : // block cache).
533 204679 : else if (eRWFlag == GF_Write && nBands > 1 &&
534 30536 : m_nPlanarConfig == PLANARCONFIG_CONTIG &&
535 : // Could be extended to "odd bit" case, but more work
536 27477 : m_nBitsPerSample == GDALGetDataTypeSizeBits(eDataType) &&
537 27466 : nXSize == nBufXSize && nYSize == nBufYSize &&
538 27464 : nBandCount == nBands && !m_bLoadedBlockDirty &&
539 27442 : (nXOff % m_nBlockXSize) == 0 && (nYOff % m_nBlockYSize) == 0 &&
540 1699 : (nXOff + nXSize == nRasterXSize ||
541 641343 : (nXSize % m_nBlockXSize) == 0) &&
542 1696 : (nYOff + nYSize == nRasterYSize || (nYSize % m_nBlockYSize) == 0))
543 : {
544 1574 : bool bOptimOK = true;
545 1574 : bool bOrderedBands = true;
546 6560 : for (int i = 0; i < nBands; ++i)
547 : {
548 5015 : if (panBandMap[i] != i + 1)
549 : {
550 26 : bOrderedBands = false;
551 : }
552 10030 : if (cpl::down_cast<GTiffRasterBand *>(papoBands[panBandMap[i] - 1])
553 5015 : ->HasBlockCache())
554 : {
555 29 : bOptimOK = false;
556 29 : break;
557 : }
558 : }
559 1574 : if (bOptimOK)
560 : {
561 1545 : Crystalize();
562 :
563 1545 : if (m_bDebugDontWriteBlocks)
564 0 : return CE_None;
565 :
566 1545 : const int nDTSize = GDALGetDataTypeSizeBytes(eDataType);
567 1545 : if (bOrderedBands && nXSize == m_nBlockXSize &&
568 1341 : nYSize == m_nBlockYSize && eBufType == eDataType &&
569 1170 : nBandSpace == nDTSize &&
570 15 : nPixelSpace == static_cast<GSpacing>(nDTSize) * nBands &&
571 5 : nLineSpace == nPixelSpace * m_nBlockXSize)
572 : {
573 : // If writing one single block with the right data type and
574 : // layout (interleaved per pixel), we don't need a temporary
575 : // buffer
576 10 : const int nBlockId = poFirstBand->ComputeBlockId(
577 5 : nXOff / m_nBlockXSize, nYOff / m_nBlockYSize);
578 5 : return WriteEncodedTileOrStrip(nBlockId, pData,
579 5 : /* bPreserveDataBuffer= */ true);
580 : }
581 :
582 : // Make sure m_poGDS->m_pabyBlockBuf is allocated.
583 : // We could actually use any temporary buffer
584 1540 : if (LoadBlockBuf(/* nBlockId = */ -1,
585 1540 : /* bReadFromDisk = */ false) != CE_None)
586 : {
587 0 : return CE_Failure;
588 : }
589 :
590 : // Iterate over all blocks defined by
591 : // [nXOff, nXOff+nXSize[ * [nYOff, nYOff+nYSize[
592 : // and write their content as a nBlockXSize x nBlockYSize strile
593 : // in a temporary buffer, before calling WriteEncodedTileOrStrip()
594 : // on it
595 1540 : const int nYBlockStart = nYOff / m_nBlockYSize;
596 1540 : const int nYBlockEnd = 1 + (nYOff + nYSize - 1) / m_nBlockYSize;
597 1540 : const int nXBlockStart = nXOff / m_nBlockXSize;
598 1540 : const int nXBlockEnd = 1 + (nXOff + nXSize - 1) / m_nBlockXSize;
599 17731 : for (int nYBlock = nYBlockStart; nYBlock < nYBlockEnd; ++nYBlock)
600 : {
601 : const int nValidY = std::min(
602 16195 : m_nBlockYSize, nRasterYSize - nYBlock * m_nBlockYSize);
603 34706 : for (int nXBlock = nXBlockStart; nXBlock < nXBlockEnd;
604 : ++nXBlock)
605 : {
606 : const int nValidX = std::min(
607 18515 : m_nBlockXSize, nRasterXSize - nXBlock * m_nBlockXSize);
608 18515 : if (nValidY < m_nBlockYSize || nValidX < m_nBlockXSize)
609 : {
610 : // Make sure padding bytes at the right/bottom of the
611 : // tile are initialized to zero.
612 332 : memset(m_pabyBlockBuf, 0,
613 332 : static_cast<size_t>(m_nBlockXSize) *
614 332 : m_nBlockYSize * nBands * nDTSize);
615 : }
616 18515 : const auto nBufDTSize = GDALGetDataTypeSizeBytes(eBufType);
617 18515 : const GByte *pabySrcData =
618 : static_cast<const GByte *>(pData) +
619 18515 : static_cast<size_t>(nYBlock - nYBlockStart) *
620 18515 : m_nBlockYSize * nLineSpace +
621 18515 : static_cast<size_t>(nXBlock - nXBlockStart) *
622 18515 : m_nBlockXSize * nPixelSpace;
623 18515 : if (bOrderedBands && nBandSpace == nBufDTSize &&
624 16 : nPixelSpace == nBands * nBandSpace)
625 : {
626 : // Input buffer is pixel interleaved
627 17 : for (int iY = 0; iY < nValidY; ++iY)
628 : {
629 16 : GDALCopyWords64(
630 16 : pabySrcData +
631 16 : static_cast<size_t>(iY) * nLineSpace,
632 : eBufType, nBufDTSize,
633 16 : m_pabyBlockBuf + static_cast<size_t>(iY) *
634 16 : m_nBlockXSize * nBands *
635 16 : nDTSize,
636 : eDataType, nDTSize,
637 16 : static_cast<GPtrDiff_t>(nValidX) * nBands);
638 1 : }
639 : }
640 : else
641 : {
642 : // "Random" spacing for input buffer
643 75887 : for (int iBand = 0; iBand < nBands; ++iBand)
644 : {
645 1781330 : for (int iY = 0; iY < nValidY; ++iY)
646 : {
647 1723950 : GDALCopyWords64(
648 1723950 : pabySrcData +
649 1723950 : static_cast<size_t>(iY) * nLineSpace,
650 : eBufType, static_cast<int>(nPixelSpace),
651 1723950 : m_pabyBlockBuf +
652 1723950 : (panBandMap[iBand] - 1 +
653 1723950 : static_cast<size_t>(iY) *
654 1723950 : m_nBlockXSize * nBands) *
655 1723950 : nDTSize,
656 1723950 : eDataType, nDTSize * nBands, nValidX);
657 : }
658 57373 : pabySrcData += nBandSpace;
659 : }
660 : }
661 :
662 : const int nBlockId =
663 18515 : poFirstBand->ComputeBlockId(nXBlock, nYBlock);
664 37030 : if (WriteEncodedTileOrStrip(
665 18515 : nBlockId, m_pabyBlockBuf,
666 18515 : /* bPreserveDataBuffer= */ false) != CE_None)
667 : {
668 4 : return CE_Failure;
669 : }
670 : }
671 : }
672 1536 : return CE_None;
673 : }
674 : }
675 :
676 435092 : if (psExtraArg->eResampleAlg == GRIORA_NearestNeighbour)
677 434932 : ++m_nJPEGOverviewVisibilityCounter;
678 435092 : const CPLErr eErr = GDALPamDataset::IRasterIO(
679 : eRWFlag, nXOff, nYOff, nXSize, nYSize, pData, nBufXSize, nBufYSize,
680 : eBufType, nBandCount, panBandMap, nPixelSpace, nLineSpace, nBandSpace,
681 : psExtraArg);
682 435092 : if (psExtraArg->eResampleAlg == GRIORA_NearestNeighbour)
683 434932 : m_nJPEGOverviewVisibilityCounter--;
684 :
685 435092 : if (pBufferedData)
686 : {
687 8 : VSIFree(pBufferedData);
688 8 : VSI_TIFFSetCachedRanges(TIFFClientdata(m_hTIFF), 0, nullptr, nullptr,
689 : nullptr);
690 : }
691 :
692 435092 : return eErr;
693 : }
694 :
695 : /************************************************************************/
696 : /* GetGTIFFKeysFlavor() */
697 : /************************************************************************/
698 :
699 32216 : GTIFFKeysFlavorEnum GetGTIFFKeysFlavor(CSLConstList papszOptions)
700 : {
701 : const char *pszGeoTIFFKeysFlavor =
702 32216 : CSLFetchNameValueDef(papszOptions, "GEOTIFF_KEYS_FLAVOR", "STANDARD");
703 32259 : if (EQUAL(pszGeoTIFFKeysFlavor, "ESRI_PE"))
704 1 : return GEOTIFF_KEYS_ESRI_PE;
705 32258 : return GEOTIFF_KEYS_STANDARD;
706 : }
707 :
708 : /************************************************************************/
709 : /* GetGeoTIFFVersion() */
710 : /************************************************************************/
711 :
712 32189 : GeoTIFFVersionEnum GetGeoTIFFVersion(CSLConstList papszOptions)
713 : {
714 : const char *pszVersion =
715 32189 : CSLFetchNameValueDef(papszOptions, "GEOTIFF_VERSION", "AUTO");
716 32237 : if (EQUAL(pszVersion, "1.0"))
717 3 : return GEOTIFF_VERSION_1_0;
718 32234 : if (EQUAL(pszVersion, "1.1"))
719 5 : return GEOTIFF_VERSION_1_1;
720 32229 : return GEOTIFF_VERSION_AUTO;
721 : }
722 :
723 : /************************************************************************/
724 : /* InitCreationOrOpenOptions() */
725 : /************************************************************************/
726 :
727 30748 : void GTiffDataset::InitCreationOrOpenOptions(bool bUpdateMode,
728 : CSLConstList papszOptions)
729 : {
730 30748 : InitCompressionThreads(bUpdateMode, papszOptions);
731 :
732 30678 : m_eGeoTIFFKeysFlavor = GetGTIFFKeysFlavor(papszOptions);
733 30656 : m_eGeoTIFFVersion = GetGeoTIFFVersion(papszOptions);
734 30617 : }
735 :
736 : /************************************************************************/
737 : /* IsBlockAvailable() */
738 : /* */
739 : /* Return true if the indicated strip/tile is available. We */
740 : /* establish this by testing if the stripbytecount is zero. If */
741 : /* zero then the block has never been committed to disk. */
742 : /************************************************************************/
743 :
744 2300880 : bool GTiffDataset::IsBlockAvailable(int nBlockId, vsi_l_offset *pnOffset,
745 : vsi_l_offset *pnSize, bool *pbErrOccurred)
746 :
747 : {
748 2300880 : if (pbErrOccurred)
749 2251150 : *pbErrOccurred = false;
750 :
751 2300880 : std::pair<vsi_l_offset, vsi_l_offset> oPair;
752 2300880 : if (m_oCacheStrileToOffsetByteCount.tryGet(nBlockId, oPair))
753 : {
754 452 : if (pnOffset)
755 111 : *pnOffset = oPair.first;
756 452 : if (pnSize)
757 0 : *pnSize = oPair.second;
758 452 : return oPair.first != 0;
759 : }
760 :
761 2300410 : WaitCompletionForBlock(nBlockId);
762 :
763 : // Optimization to avoid fetching the whole Strip/TileCounts and
764 : // Strip/TileOffsets arrays.
765 2300410 : if (eAccess == GA_ReadOnly && !m_bStreamingIn)
766 : {
767 2178860 : int nErrOccurred = 0;
768 : auto bytecount =
769 2178860 : TIFFGetStrileByteCountWithErr(m_hTIFF, nBlockId, &nErrOccurred);
770 2178870 : if (nErrOccurred && pbErrOccurred)
771 1 : *pbErrOccurred = true;
772 2178870 : if (pnOffset)
773 : {
774 2135320 : *pnOffset =
775 2135310 : TIFFGetStrileOffsetWithErr(m_hTIFF, nBlockId, &nErrOccurred);
776 2135320 : if (nErrOccurred && pbErrOccurred)
777 3 : *pbErrOccurred = true;
778 : }
779 2178880 : if (pnSize)
780 12049 : *pnSize = bytecount;
781 2178880 : return bytecount != 0;
782 : }
783 :
784 121547 : if (!m_bCrystalized)
785 : {
786 : // If this is a fresh new file not yet crystalized, do not try to
787 : // read the [Strip|Tile][ByteCounts|Offsets] tags as they do not yet
788 : // exist. Trying would set *pbErrOccurred=true, which is not desirable.
789 2 : if (pnOffset)
790 2 : *pnOffset = 0;
791 2 : if (pnSize)
792 2 : *pnSize = 0;
793 2 : return false;
794 : }
795 :
796 121545 : toff_t *panByteCounts = nullptr;
797 121545 : toff_t *panOffsets = nullptr;
798 121545 : const bool bIsTiled = CPL_TO_BOOL(TIFFIsTiled(m_hTIFF));
799 :
800 155394 : if ((bIsTiled &&
801 33852 : TIFFGetField(m_hTIFF, TIFFTAG_TILEBYTECOUNTS, &panByteCounts) &&
802 25702 : (pnOffset == nullptr ||
803 243084 : TIFFGetField(m_hTIFF, TIFFTAG_TILEOFFSETS, &panOffsets))) ||
804 87690 : (!bIsTiled &&
805 87690 : TIFFGetField(m_hTIFF, TIFFTAG_STRIPBYTECOUNTS, &panByteCounts) &&
806 38659 : (pnOffset == nullptr ||
807 38659 : TIFFGetField(m_hTIFF, TIFFTAG_STRIPOFFSETS, &panOffsets))))
808 : {
809 121542 : if (panByteCounts == nullptr ||
810 64361 : (pnOffset != nullptr && panOffsets == nullptr))
811 : {
812 0 : if (pbErrOccurred)
813 0 : *pbErrOccurred = true;
814 0 : return false;
815 : }
816 : const int nBlockCount =
817 121542 : bIsTiled ? TIFFNumberOfTiles(m_hTIFF) : TIFFNumberOfStrips(m_hTIFF);
818 121542 : if (nBlockId >= nBlockCount)
819 : {
820 0 : if (pbErrOccurred)
821 0 : *pbErrOccurred = true;
822 0 : return false;
823 : }
824 :
825 121542 : if (pnOffset)
826 64361 : *pnOffset = panOffsets[nBlockId];
827 121542 : if (pnSize)
828 7147 : *pnSize = panByteCounts[nBlockId];
829 121542 : return panByteCounts[nBlockId] != 0;
830 : }
831 : else
832 : {
833 0 : if (pbErrOccurred)
834 0 : *pbErrOccurred = true;
835 : }
836 :
837 0 : return false;
838 : }
839 :
840 : /************************************************************************/
841 : /* ReloadDirectory() */
842 : /************************************************************************/
843 :
844 7463 : void GTiffDataset::ReloadDirectory(bool bReopenHandle)
845 : {
846 7463 : bool bNeedSetInvalidDir = true;
847 7463 : if (bReopenHandle)
848 : {
849 : // When issuing a TIFFRewriteDirectory() or when a TIFFFlush() has
850 : // caused a move of the directory, we would need to invalidate the
851 : // tif_lastdiroff member, but it is not possible to do so without
852 : // re-opening the TIFF handle.
853 9 : auto hTIFFNew = VSI_TIFFReOpen(m_hTIFF);
854 9 : if (hTIFFNew != nullptr)
855 : {
856 9 : m_hTIFF = hTIFFNew;
857 9 : bNeedSetInvalidDir = false; // we could do it, but not needed
858 : }
859 : else
860 : {
861 0 : CPLError(CE_Failure, CPLE_AppDefined,
862 : "Cannot re-open TIFF handle for file %s. "
863 : "Directory chaining may be corrupted !",
864 : m_pszFilename);
865 : }
866 : }
867 7463 : if (bNeedSetInvalidDir)
868 : {
869 7454 : TIFFSetSubDirectory(m_hTIFF, 0);
870 : }
871 7463 : CPL_IGNORE_RET_VAL(SetDirectory());
872 7463 : }
873 :
874 : /************************************************************************/
875 : /* SetDirectory() */
876 : /************************************************************************/
877 :
878 55052 : bool GTiffDataset::SetDirectory()
879 :
880 : {
881 55052 : Crystalize();
882 :
883 55018 : if (TIFFCurrentDirOffset(m_hTIFF) == m_nDirOffset)
884 : {
885 45730 : return true;
886 : }
887 :
888 9261 : const int nSetDirResult = TIFFSetSubDirectory(m_hTIFF, m_nDirOffset);
889 9261 : if (!nSetDirResult)
890 0 : return false;
891 :
892 9261 : RestoreVolatileParameters(m_hTIFF);
893 :
894 9261 : return true;
895 : }
896 :
897 : /************************************************************************/
898 : /* GTiffSetDeflateSubCodec() */
899 : /************************************************************************/
900 :
901 6452 : void GTiffSetDeflateSubCodec(TIFF *hTIFF)
902 : {
903 : (void)hTIFF;
904 :
905 : #if defined(TIFFTAG_DEFLATE_SUBCODEC) && defined(LIBDEFLATE_SUPPORT)
906 : // Mostly for strict reproducibility purposes
907 6452 : if (EQUAL(CPLGetConfigOption("GDAL_TIFF_DEFLATE_SUBCODEC", ""), "ZLIB"))
908 : {
909 4097 : TIFFSetField(hTIFF, TIFFTAG_DEFLATE_SUBCODEC, DEFLATE_SUBCODEC_ZLIB);
910 : }
911 : #endif
912 6452 : }
913 :
914 : /************************************************************************/
915 : /* RestoreVolatileParameters() */
916 : /************************************************************************/
917 :
918 44320 : void GTiffDataset::RestoreVolatileParameters(TIFF *hTIFF)
919 : {
920 :
921 : /* -------------------------------------------------------------------- */
922 : /* YCbCr JPEG compressed images should be translated on the fly */
923 : /* to RGB by libtiff/libjpeg unless specifically requested */
924 : /* otherwise. */
925 : /* -------------------------------------------------------------------- */
926 89067 : if (m_nCompression == COMPRESSION_JPEG &&
927 44604 : m_nPhotometric == PHOTOMETRIC_YCBCR &&
928 285 : CPLTestBool(CPLGetConfigOption("CONVERT_YCBCR_TO_RGB", "YES")))
929 : {
930 285 : int nColorMode = JPEGCOLORMODE_RAW; // Initialize to 0;
931 :
932 285 : TIFFGetField(hTIFF, TIFFTAG_JPEGCOLORMODE, &nColorMode);
933 285 : if (nColorMode != JPEGCOLORMODE_RGB)
934 : {
935 251 : TIFFSetField(hTIFF, TIFFTAG_JPEGCOLORMODE, JPEGCOLORMODE_RGB);
936 : }
937 : }
938 :
939 44319 : if (m_nCompression == COMPRESSION_ADOBE_DEFLATE ||
940 38477 : m_nCompression == COMPRESSION_LERC)
941 : {
942 6079 : GTiffSetDeflateSubCodec(hTIFF);
943 : }
944 :
945 : /* -------------------------------------------------------------------- */
946 : /* Propagate any quality settings. */
947 : /* -------------------------------------------------------------------- */
948 44320 : if (eAccess == GA_Update)
949 : {
950 : // Now, reset zip and jpeg quality.
951 37568 : if (m_nJpegQuality > 0 && m_nCompression == COMPRESSION_JPEG)
952 : {
953 : #ifdef DEBUG_VERBOSE
954 : CPLDebug("GTiff", "Propagate JPEG_QUALITY(%d) in SetDirectory()",
955 : m_nJpegQuality);
956 : #endif
957 185 : TIFFSetField(hTIFF, TIFFTAG_JPEGQUALITY, m_nJpegQuality);
958 : }
959 37568 : if (m_nJpegTablesMode >= 0 && m_nCompression == COMPRESSION_JPEG)
960 326 : TIFFSetField(hTIFF, TIFFTAG_JPEGTABLESMODE, m_nJpegTablesMode);
961 37568 : if (m_nZLevel > 0 && (m_nCompression == COMPRESSION_ADOBE_DEFLATE ||
962 12 : m_nCompression == COMPRESSION_LERC))
963 26 : TIFFSetField(hTIFF, TIFFTAG_ZIPQUALITY, m_nZLevel);
964 37568 : if (m_nLZMAPreset > 0 && m_nCompression == COMPRESSION_LZMA)
965 8 : TIFFSetField(hTIFF, TIFFTAG_LZMAPRESET, m_nLZMAPreset);
966 37568 : if (m_nZSTDLevel > 0 && (m_nCompression == COMPRESSION_ZSTD ||
967 12 : m_nCompression == COMPRESSION_LERC))
968 18 : TIFFSetField(hTIFF, TIFFTAG_ZSTD_LEVEL, m_nZSTDLevel);
969 37568 : if (m_nCompression == COMPRESSION_LERC)
970 : {
971 185 : TIFFSetField(hTIFF, TIFFTAG_LERC_MAXZERROR, m_dfMaxZError);
972 : }
973 37568 : if (m_nWebPLevel > 0 && m_nCompression == COMPRESSION_WEBP)
974 124 : TIFFSetField(hTIFF, TIFFTAG_WEBP_LEVEL, m_nWebPLevel);
975 37568 : if (m_bWebPLossless && m_nCompression == COMPRESSION_WEBP)
976 50 : TIFFSetField(hTIFF, TIFFTAG_WEBP_LOSSLESS, 1);
977 : #ifdef HAVE_JXL
978 37568 : if (m_nCompression == COMPRESSION_JXL ||
979 37568 : m_nCompression == COMPRESSION_JXL_DNG_1_7)
980 : {
981 76 : TIFFSetField(hTIFF, TIFFTAG_JXL_LOSSYNESS,
982 76 : m_bJXLLossless ? JXL_LOSSLESS : JXL_LOSSY);
983 76 : TIFFSetField(hTIFF, TIFFTAG_JXL_EFFORT, m_nJXLEffort);
984 76 : TIFFSetField(hTIFF, TIFFTAG_JXL_DISTANCE, m_fJXLDistance);
985 76 : TIFFSetField(hTIFF, TIFFTAG_JXL_ALPHA_DISTANCE,
986 76 : m_fJXLAlphaDistance);
987 : }
988 : #endif
989 : }
990 44320 : }
991 :
992 : /************************************************************************/
993 : /* ComputeBlocksPerColRowAndBand() */
994 : /************************************************************************/
995 :
996 32521 : bool GTiffDataset::ComputeBlocksPerColRowAndBand(int l_nBands)
997 : {
998 32521 : m_nBlocksPerColumn = DIV_ROUND_UP(nRasterYSize, m_nBlockYSize);
999 32521 : m_nBlocksPerRow = DIV_ROUND_UP(nRasterXSize, m_nBlockXSize);
1000 32521 : if (m_nBlocksPerColumn > INT_MAX / m_nBlocksPerRow)
1001 : {
1002 1 : ReportError(CE_Failure, CPLE_AppDefined, "Too many blocks: %d x %d",
1003 : m_nBlocksPerRow, m_nBlocksPerColumn);
1004 1 : return false;
1005 : }
1006 :
1007 : // Note: we could potentially go up to UINT_MAX blocks, but currently
1008 : // we use a int nBlockId
1009 32520 : m_nBlocksPerBand = m_nBlocksPerColumn * m_nBlocksPerRow;
1010 32520 : if (m_nPlanarConfig == PLANARCONFIG_SEPARATE &&
1011 4062 : m_nBlocksPerBand > INT_MAX / l_nBands)
1012 : {
1013 1 : ReportError(CE_Failure, CPLE_AppDefined,
1014 : "Too many blocks: %d x %d x %d bands", m_nBlocksPerRow,
1015 : m_nBlocksPerColumn, l_nBands);
1016 1 : return false;
1017 : }
1018 32519 : return true;
1019 : }
1020 :
1021 : /************************************************************************/
1022 : /* SetStructuralMDFromParent() */
1023 : /************************************************************************/
1024 :
1025 1148 : void GTiffDataset::SetStructuralMDFromParent(GTiffDataset *poParentDS)
1026 : {
1027 1148 : m_bBlockOrderRowMajor = poParentDS->m_bBlockOrderRowMajor;
1028 1148 : m_bLeaderSizeAsUInt4 = poParentDS->m_bLeaderSizeAsUInt4;
1029 1148 : m_bTrailerRepeatedLast4BytesRepeated =
1030 1148 : poParentDS->m_bTrailerRepeatedLast4BytesRepeated;
1031 1148 : m_bMaskInterleavedWithImagery = poParentDS->m_bMaskInterleavedWithImagery;
1032 1148 : m_bWriteEmptyTiles = poParentDS->m_bWriteEmptyTiles;
1033 1148 : m_bTileInterleave = poParentDS->m_bTileInterleave;
1034 1148 : }
1035 :
1036 : /************************************************************************/
1037 : /* ScanDirectories() */
1038 : /* */
1039 : /* Scan through all the directories finding overviews, masks */
1040 : /* and subdatasets. */
1041 : /************************************************************************/
1042 :
1043 1531800 : void GTiffDataset::ScanDirectories()
1044 :
1045 : {
1046 : /* -------------------------------------------------------------------- */
1047 : /* We only scan once. We do not scan for non-base datasets. */
1048 : /* -------------------------------------------------------------------- */
1049 1531800 : if (!m_bScanDeferred)
1050 1522830 : return;
1051 :
1052 9292 : m_bScanDeferred = false;
1053 :
1054 9292 : if (m_poBaseDS)
1055 330 : return;
1056 :
1057 8962 : Crystalize();
1058 :
1059 6787 : CPLDebug("GTiff", "ScanDirectories()");
1060 :
1061 : /* ==================================================================== */
1062 : /* Scan all directories. */
1063 : /* ==================================================================== */
1064 13574 : CPLStringList aosSubdatasets;
1065 6787 : int iDirIndex = 0;
1066 :
1067 6787 : FlushDirectory();
1068 :
1069 1136 : do
1070 : {
1071 7923 : toff_t nTopDir = TIFFCurrentDirOffset(m_hTIFF);
1072 7923 : uint32_t nSubType = 0;
1073 :
1074 7923 : ++iDirIndex;
1075 :
1076 7923 : toff_t *tmpSubIFDOffsets = nullptr;
1077 7923 : toff_t *subIFDOffsets = nullptr;
1078 7923 : uint16_t nSubIFDs = 0;
1079 7923 : if (TIFFGetField(m_hTIFF, TIFFTAG_SUBIFD, &nSubIFDs,
1080 7923 : &tmpSubIFDOffsets) &&
1081 : iDirIndex == 1)
1082 : {
1083 : subIFDOffsets =
1084 13 : static_cast<toff_t *>(CPLMalloc(nSubIFDs * sizeof(toff_t)));
1085 39 : for (uint16_t iSubIFD = 0; iSubIFD < nSubIFDs; iSubIFD++)
1086 : {
1087 26 : subIFDOffsets[iSubIFD] = tmpSubIFDOffsets[iSubIFD];
1088 : }
1089 : }
1090 :
1091 : // early break for backwards compatibility: if the first directory read
1092 : // is also the last, and there are no subIFDs, no use continuing
1093 7923 : if (iDirIndex == 1 && nSubIFDs == 0 && TIFFLastDirectory(m_hTIFF))
1094 : {
1095 6115 : CPLFree(subIFDOffsets);
1096 6115 : break;
1097 : }
1098 :
1099 3642 : for (uint16_t iSubIFD = 0; iSubIFD <= nSubIFDs; iSubIFD++)
1100 : {
1101 1842 : toff_t nThisDir = nTopDir;
1102 1842 : if (iSubIFD > 0 && iDirIndex > 1) // don't read subIFDs if we are
1103 : // not in the original directory
1104 8 : break;
1105 1834 : if (iSubIFD > 0)
1106 : {
1107 : // make static analyzer happy. subIFDOffsets cannot be null if
1108 : // iSubIFD>0
1109 26 : assert(subIFDOffsets != nullptr);
1110 26 : nThisDir = subIFDOffsets[iSubIFD - 1];
1111 : // CPLDebug("GTiff", "Opened subIFD %d/%d at offset %llu.",
1112 : // iSubIFD, nSubIFDs, nThisDir);
1113 26 : if (!TIFFSetSubDirectory(m_hTIFF, nThisDir))
1114 0 : break;
1115 : }
1116 :
1117 1834 : if (!TIFFGetField(m_hTIFF, TIFFTAG_SUBFILETYPE, &nSubType))
1118 421 : nSubType = 0;
1119 :
1120 : /* Embedded overview of the main image */
1121 1834 : if ((nSubType & FILETYPE_REDUCEDIMAGE) != 0 &&
1122 1302 : (nSubType & FILETYPE_MASK) == 0 &&
1123 1196 : ((nSubIFDs == 0 && iDirIndex != 1) || iSubIFD > 0) &&
1124 931 : m_nOverviewCount < 30 /* to avoid DoS */)
1125 : {
1126 931 : GTiffDataset *poODS = new GTiffDataset();
1127 931 : poODS->ShareLockWithParentDataset(this);
1128 931 : poODS->SetStructuralMDFromParent(this);
1129 931 : if (m_bHasGotSiblingFiles)
1130 171 : poODS->oOvManager.TransferSiblingFiles(
1131 : CSLDuplicate(GetSiblingFiles()));
1132 931 : poODS->m_pszFilename = CPLStrdup(m_pszFilename);
1133 931 : poODS->m_nColorTableMultiplier = m_nColorTableMultiplier;
1134 931 : if (poODS->OpenOffset(VSI_TIFFOpenChild(m_hTIFF), nThisDir,
1135 1862 : eAccess) != CE_None ||
1136 931 : poODS->GetRasterCount() != GetRasterCount())
1137 : {
1138 0 : delete poODS;
1139 : }
1140 : else
1141 : {
1142 931 : CPLDebug("GTiff", "Opened %dx%d overview.",
1143 : poODS->GetRasterXSize(), poODS->GetRasterYSize());
1144 931 : ++m_nOverviewCount;
1145 1862 : m_papoOverviewDS = static_cast<GTiffDataset **>(CPLRealloc(
1146 931 : m_papoOverviewDS, m_nOverviewCount * (sizeof(void *))));
1147 931 : m_papoOverviewDS[m_nOverviewCount - 1] = poODS;
1148 931 : poODS->m_poBaseDS = this;
1149 931 : poODS->m_bIsOverview = true;
1150 :
1151 : // Propagate a few compression related settings that are
1152 : // no preserved at the TIFF tag level, but may be set in
1153 : // the GDAL_METADATA tag in the IMAGE_STRUCTURE domain
1154 : // Note: this might not be totally reflecting the reality
1155 : // if users have created overviews with different settings
1156 : // but this is probably better than the default ones
1157 931 : poODS->m_nWebPLevel = m_nWebPLevel;
1158 : // below is not a copy & paste error: we transfer the
1159 : // m_dfMaxZErrorOverview overview of the parent to
1160 : // m_dfMaxZError of the overview
1161 931 : poODS->m_dfMaxZError = m_dfMaxZErrorOverview;
1162 931 : poODS->m_dfMaxZErrorOverview = m_dfMaxZErrorOverview;
1163 : #if HAVE_JXL
1164 931 : poODS->m_bJXLLossless = m_bJXLLossless;
1165 931 : poODS->m_fJXLDistance = m_fJXLDistance;
1166 931 : poODS->m_fJXLAlphaDistance = m_fJXLAlphaDistance;
1167 931 : poODS->m_nJXLEffort = m_nJXLEffort;
1168 : #endif
1169 : // Those ones are not serialized currently..
1170 : // poODS->m_nZLevel = m_nZLevel;
1171 : // poODS->m_nLZMAPreset = m_nLZMAPreset;
1172 : // poODS->m_nZSTDLevel = m_nZSTDLevel;
1173 931 : }
1174 : }
1175 : // Embedded mask of the main image.
1176 903 : else if ((nSubType & FILETYPE_MASK) != 0 &&
1177 217 : (nSubType & FILETYPE_REDUCEDIMAGE) == 0 &&
1178 111 : ((nSubIFDs == 0 && iDirIndex != 1) || iSubIFD > 0) &&
1179 111 : m_poMaskDS == nullptr)
1180 : {
1181 111 : m_poMaskDS = new GTiffDataset();
1182 111 : m_poMaskDS->ShareLockWithParentDataset(this);
1183 111 : m_poMaskDS->SetStructuralMDFromParent(this);
1184 111 : m_poMaskDS->m_pszFilename = CPLStrdup(m_pszFilename);
1185 :
1186 : // The TIFF6 specification - page 37 - only allows 1
1187 : // SamplesPerPixel and 1 BitsPerSample Here we support either 1
1188 : // or 8 bit per sample and we support either 1 sample per pixel
1189 : // or as many samples as in the main image We don't check the
1190 : // value of the PhotometricInterpretation tag, which should be
1191 : // set to "Transparency mask" (4) according to the specification
1192 : // (page 36). However, the TIFF6 specification allows image
1193 : // masks to have a higher resolution than the main image, what
1194 : // we don't support here.
1195 :
1196 111 : if (m_poMaskDS->OpenOffset(VSI_TIFFOpenChild(m_hTIFF), nThisDir,
1197 111 : eAccess) != CE_None ||
1198 111 : m_poMaskDS->GetRasterCount() == 0 ||
1199 111 : !(m_poMaskDS->GetRasterCount() == 1 ||
1200 3 : m_poMaskDS->GetRasterCount() == GetRasterCount()) ||
1201 111 : m_poMaskDS->GetRasterXSize() != GetRasterXSize() ||
1202 333 : m_poMaskDS->GetRasterYSize() != GetRasterYSize() ||
1203 111 : m_poMaskDS->GetRasterBand(1)->GetRasterDataType() !=
1204 : GDT_Byte)
1205 : {
1206 0 : delete m_poMaskDS;
1207 0 : m_poMaskDS = nullptr;
1208 : }
1209 : else
1210 : {
1211 111 : CPLDebug("GTiff", "Opened band mask.");
1212 111 : m_poMaskDS->m_poBaseDS = this;
1213 111 : m_poMaskDS->m_poImageryDS = this;
1214 :
1215 222 : m_poMaskDS->m_bPromoteTo8Bits =
1216 111 : CPLTestBool(CPLGetConfigOption(
1217 : "GDAL_TIFF_INTERNAL_MASK_TO_8BIT", "YES"));
1218 : }
1219 : }
1220 :
1221 : // Embedded mask of an overview. The TIFF6 specification allows the
1222 : // combination of the FILETYPE_xxxx masks.
1223 792 : else if ((nSubType & FILETYPE_REDUCEDIMAGE) != 0 &&
1224 371 : (nSubType & FILETYPE_MASK) != 0 &&
1225 106 : ((nSubIFDs == 0 && iDirIndex != 1) || iSubIFD > 0))
1226 : {
1227 106 : GTiffDataset *poDS = new GTiffDataset();
1228 106 : poDS->ShareLockWithParentDataset(this);
1229 106 : poDS->SetStructuralMDFromParent(this);
1230 106 : poDS->m_pszFilename = CPLStrdup(m_pszFilename);
1231 106 : if (poDS->OpenOffset(VSI_TIFFOpenChild(m_hTIFF), nThisDir,
1232 106 : eAccess) != CE_None ||
1233 212 : poDS->GetRasterCount() == 0 ||
1234 106 : poDS->GetRasterBand(1)->GetRasterDataType() != GDT_Byte)
1235 : {
1236 0 : delete poDS;
1237 : }
1238 : else
1239 : {
1240 106 : int i = 0; // Used after for.
1241 158 : for (; i < m_nOverviewCount; ++i)
1242 : {
1243 158 : auto poOvrDS = cpl::down_cast<GTiffDataset *>(
1244 158 : GDALDataset::FromHandle(m_papoOverviewDS[i]));
1245 422 : if (poOvrDS->m_poMaskDS == nullptr &&
1246 106 : poDS->GetRasterXSize() ==
1247 106 : m_papoOverviewDS[i]->GetRasterXSize() &&
1248 106 : poDS->GetRasterYSize() ==
1249 370 : m_papoOverviewDS[i]->GetRasterYSize() &&
1250 106 : (poDS->GetRasterCount() == 1 ||
1251 0 : poDS->GetRasterCount() == GetRasterCount()))
1252 : {
1253 106 : CPLDebug(
1254 : "GTiff", "Opened band mask for %dx%d overview.",
1255 : poDS->GetRasterXSize(), poDS->GetRasterYSize());
1256 106 : poDS->m_poImageryDS = poOvrDS;
1257 106 : poOvrDS->m_poMaskDS = poDS;
1258 106 : poDS->m_bPromoteTo8Bits =
1259 106 : CPLTestBool(CPLGetConfigOption(
1260 : "GDAL_TIFF_INTERNAL_MASK_TO_8BIT", "YES"));
1261 106 : poDS->m_poBaseDS = this;
1262 106 : break;
1263 : }
1264 : }
1265 106 : if (i == m_nOverviewCount)
1266 : {
1267 0 : delete poDS;
1268 : }
1269 106 : }
1270 : }
1271 686 : else if (!m_bSingleIFDOpened &&
1272 681 : (nSubType == 0 || nSubType == FILETYPE_PAGE))
1273 : {
1274 416 : uint32_t nXSize = 0;
1275 416 : uint32_t nYSize = 0;
1276 :
1277 416 : TIFFGetField(m_hTIFF, TIFFTAG_IMAGEWIDTH, &nXSize);
1278 416 : TIFFGetField(m_hTIFF, TIFFTAG_IMAGELENGTH, &nYSize);
1279 :
1280 : // For Geodetic TIFF grids (GTG)
1281 : // (https://proj.org/specifications/geodetictiffgrids.html)
1282 : // extract the grid_name to put it in the description
1283 832 : std::string osFriendlyName;
1284 416 : char *pszText = nullptr;
1285 483 : if (TIFFGetField(m_hTIFF, TIFFTAG_GDAL_METADATA, &pszText) &&
1286 67 : strstr(pszText, "grid_name") != nullptr)
1287 : {
1288 4 : CPLXMLNode *psRoot = CPLParseXMLString(pszText);
1289 : const CPLXMLNode *psItem =
1290 4 : psRoot ? CPLGetXMLNode(psRoot, "=GDALMetadata")
1291 4 : : nullptr;
1292 4 : if (psItem)
1293 4 : psItem = psItem->psChild;
1294 4 : for (; psItem != nullptr; psItem = psItem->psNext)
1295 : {
1296 :
1297 4 : if (psItem->eType != CXT_Element ||
1298 4 : !EQUAL(psItem->pszValue, "Item"))
1299 0 : continue;
1300 :
1301 : const char *pszKey =
1302 4 : CPLGetXMLValue(psItem, "name", nullptr);
1303 : const char *pszValue =
1304 4 : CPLGetXMLValue(psItem, nullptr, nullptr);
1305 : int nBand =
1306 4 : atoi(CPLGetXMLValue(psItem, "sample", "-1"));
1307 4 : if (pszKey && pszValue && nBand <= 0 &&
1308 4 : EQUAL(pszKey, "grid_name"))
1309 : {
1310 4 : osFriendlyName = ": ";
1311 4 : osFriendlyName += pszValue;
1312 4 : break;
1313 : }
1314 : }
1315 :
1316 4 : CPLDestroyXMLNode(psRoot);
1317 : }
1318 :
1319 416 : if (nXSize > INT_MAX || nYSize > INT_MAX)
1320 : {
1321 1 : CPLDebug("GTiff",
1322 : "Skipping directory with too large image: %u x %u",
1323 : nXSize, nYSize);
1324 : }
1325 : else
1326 : {
1327 415 : uint16_t nSPP = 0;
1328 415 : if (!TIFFGetField(m_hTIFF, TIFFTAG_SAMPLESPERPIXEL, &nSPP))
1329 0 : nSPP = 1;
1330 :
1331 830 : CPLString osName, osDesc;
1332 : osName.Printf("SUBDATASET_%d_NAME=GTIFF_DIR:%d:%s",
1333 415 : iDirIndex, iDirIndex, m_pszFilename);
1334 : osDesc.Printf(
1335 : "SUBDATASET_%d_DESC=Page %d (%dP x %dL x %dB)",
1336 : iDirIndex, iDirIndex, static_cast<int>(nXSize),
1337 415 : static_cast<int>(nYSize), nSPP);
1338 415 : osDesc += osFriendlyName;
1339 :
1340 415 : aosSubdatasets.AddString(osName);
1341 415 : aosSubdatasets.AddString(osDesc);
1342 : }
1343 : }
1344 : }
1345 1808 : CPLFree(subIFDOffsets);
1346 :
1347 : // Make sure we are stepping from the expected directory regardless
1348 : // of churn done processing the above.
1349 1808 : if (TIFFCurrentDirOffset(m_hTIFF) != nTopDir)
1350 13 : TIFFSetSubDirectory(m_hTIFF, nTopDir);
1351 2944 : } while (!m_bSingleIFDOpened && !TIFFLastDirectory(m_hTIFF) &&
1352 1136 : TIFFReadDirectory(m_hTIFF) != 0);
1353 :
1354 6787 : ReloadDirectory();
1355 :
1356 : // If we have a mask for the main image, loop over the overviews, and if
1357 : // they have a mask, let's set this mask as an overview of the main mask.
1358 6787 : if (m_poMaskDS != nullptr)
1359 : {
1360 217 : for (int i = 0; i < m_nOverviewCount; ++i)
1361 : {
1362 106 : if (cpl::down_cast<GTiffDataset *>(
1363 106 : GDALDataset::FromHandle(m_papoOverviewDS[i]))
1364 106 : ->m_poMaskDS != nullptr)
1365 : {
1366 106 : ++m_poMaskDS->m_nOverviewCount;
1367 212 : m_poMaskDS->m_papoOverviewDS =
1368 212 : static_cast<GTiffDataset **>(CPLRealloc(
1369 106 : m_poMaskDS->m_papoOverviewDS,
1370 106 : m_poMaskDS->m_nOverviewCount * (sizeof(void *))));
1371 106 : m_poMaskDS->m_papoOverviewDS[m_poMaskDS->m_nOverviewCount - 1] =
1372 106 : cpl::down_cast<GTiffDataset *>(
1373 106 : GDALDataset::FromHandle(m_papoOverviewDS[i]))
1374 106 : ->m_poMaskDS;
1375 : }
1376 : }
1377 : }
1378 :
1379 : // Assign color interpretation from main dataset
1380 6787 : const int l_nBands = GetRasterCount();
1381 7718 : for (int iOvr = 0; iOvr < m_nOverviewCount; ++iOvr)
1382 : {
1383 68126 : for (int i = 1; i <= l_nBands; i++)
1384 : {
1385 0 : auto poBand = dynamic_cast<GTiffRasterBand *>(
1386 67195 : m_papoOverviewDS[iOvr]->GetRasterBand(i));
1387 67195 : if (poBand)
1388 67195 : poBand->m_eBandInterp =
1389 67195 : GetRasterBand(i)->GetColorInterpretation();
1390 : }
1391 : }
1392 :
1393 : /* -------------------------------------------------------------------- */
1394 : /* Only keep track of subdatasets if we have more than one */
1395 : /* subdataset (pair). */
1396 : /* -------------------------------------------------------------------- */
1397 6787 : if (aosSubdatasets.size() > 2)
1398 : {
1399 11 : m_oGTiffMDMD.SetMetadata(aosSubdatasets.List(), "SUBDATASETS");
1400 : }
1401 : }
1402 :
1403 : /************************************************************************/
1404 : /* GetInternalHandle() */
1405 : /************************************************************************/
1406 :
1407 2393 : void *GTiffDataset::GetInternalHandle(const char *pszHandleName)
1408 :
1409 : {
1410 2393 : if (pszHandleName && EQUAL(pszHandleName, "TIFF_HANDLE"))
1411 2233 : return m_hTIFF;
1412 160 : return nullptr;
1413 : }
1414 :
1415 : /************************************************************************/
1416 : /* GetFileList() */
1417 : /************************************************************************/
1418 :
1419 2476 : char **GTiffDataset::GetFileList()
1420 :
1421 : {
1422 2476 : LoadGeoreferencingAndPamIfNeeded();
1423 :
1424 2476 : char **papszFileList = GDALPamDataset::GetFileList();
1425 :
1426 2476 : LoadMetadata();
1427 2476 : if (nullptr != m_papszMetadataFiles)
1428 : {
1429 77 : for (int i = 0; m_papszMetadataFiles[i] != nullptr; ++i)
1430 : {
1431 44 : if (CSLFindString(papszFileList, m_papszMetadataFiles[i]) < 0)
1432 : {
1433 : papszFileList =
1434 44 : CSLAddString(papszFileList, m_papszMetadataFiles[i]);
1435 : }
1436 : }
1437 : }
1438 :
1439 2482 : if (m_pszGeorefFilename &&
1440 6 : CSLFindString(papszFileList, m_pszGeorefFilename) == -1)
1441 : {
1442 6 : papszFileList = CSLAddString(papszFileList, m_pszGeorefFilename);
1443 : }
1444 :
1445 2476 : if (m_nXMLGeorefSrcIndex >= 0)
1446 2476 : LookForProjection();
1447 :
1448 2477 : if (m_pszXMLFilename &&
1449 1 : CSLFindString(papszFileList, m_pszXMLFilename) == -1)
1450 : {
1451 1 : papszFileList = CSLAddString(papszFileList, m_pszXMLFilename);
1452 : }
1453 :
1454 4952 : const std::string osVATDBF = std::string(m_pszFilename) + ".vat.dbf";
1455 : VSIStatBufL sStat;
1456 2476 : if (VSIStatL(osVATDBF.c_str(), &sStat) == 0)
1457 : {
1458 2 : papszFileList = CSLAddString(papszFileList, osVATDBF.c_str());
1459 : }
1460 :
1461 4952 : return papszFileList;
1462 : }
1463 :
1464 : /************************************************************************/
1465 : /* GetRawBinaryLayout() */
1466 : /************************************************************************/
1467 :
1468 9 : bool GTiffDataset::GetRawBinaryLayout(GDALDataset::RawBinaryLayout &sLayout)
1469 : {
1470 9 : if (eAccess == GA_Update)
1471 : {
1472 3 : FlushCache(false);
1473 3 : Crystalize();
1474 : }
1475 :
1476 9 : if (m_nCompression != COMPRESSION_NONE)
1477 1 : return false;
1478 8 : if (!CPLIsPowerOfTwo(m_nBitsPerSample) || m_nBitsPerSample < 8)
1479 0 : return false;
1480 8 : const auto eDT = GetRasterBand(1)->GetRasterDataType();
1481 8 : if (GDALDataTypeIsComplex(eDT))
1482 0 : return false;
1483 :
1484 8 : toff_t *panByteCounts = nullptr;
1485 8 : toff_t *panOffsets = nullptr;
1486 8 : const bool bIsTiled = CPL_TO_BOOL(TIFFIsTiled(m_hTIFF));
1487 :
1488 16 : if (!((bIsTiled &&
1489 3 : TIFFGetField(m_hTIFF, TIFFTAG_TILEBYTECOUNTS, &panByteCounts) &&
1490 3 : TIFFGetField(m_hTIFF, TIFFTAG_TILEOFFSETS, &panOffsets)) ||
1491 5 : (!bIsTiled &&
1492 5 : TIFFGetField(m_hTIFF, TIFFTAG_STRIPBYTECOUNTS, &panByteCounts) &&
1493 5 : TIFFGetField(m_hTIFF, TIFFTAG_STRIPOFFSETS, &panOffsets))))
1494 : {
1495 0 : return false;
1496 : }
1497 :
1498 8 : const int nDTSize = GDALGetDataTypeSizeBytes(eDT);
1499 8 : vsi_l_offset nImgOffset = panOffsets[0];
1500 16 : GIntBig nPixelOffset = (m_nPlanarConfig == PLANARCONFIG_CONTIG)
1501 8 : ? static_cast<GIntBig>(nDTSize) * nBands
1502 : : nDTSize;
1503 8 : GIntBig nLineOffset = nPixelOffset * nRasterXSize;
1504 8 : GIntBig nBandOffset =
1505 8 : (m_nPlanarConfig == PLANARCONFIG_CONTIG && nBands > 1) ? nDTSize : 0;
1506 8 : RawBinaryLayout::Interleaving eInterleaving =
1507 12 : (nBands == 1) ? RawBinaryLayout::Interleaving::UNKNOWN
1508 4 : : (m_nPlanarConfig == PLANARCONFIG_CONTIG)
1509 4 : ? RawBinaryLayout::Interleaving::BIP
1510 : : RawBinaryLayout::Interleaving::BSQ;
1511 8 : if (bIsTiled)
1512 : {
1513 : // Only a single block tiled file with same dimension as the raster
1514 : // might be acceptable
1515 3 : if (m_nBlockXSize != nRasterXSize || m_nBlockYSize != nRasterYSize)
1516 1 : return false;
1517 2 : if (nBands > 1 && m_nPlanarConfig != PLANARCONFIG_CONTIG)
1518 : {
1519 1 : nBandOffset = static_cast<GIntBig>(panOffsets[1]) -
1520 1 : static_cast<GIntBig>(panOffsets[0]);
1521 2 : for (int i = 2; i < nBands; i++)
1522 : {
1523 1 : if (static_cast<GIntBig>(panOffsets[i]) -
1524 1 : static_cast<GIntBig>(panOffsets[i - 1]) !=
1525 : nBandOffset)
1526 0 : return false;
1527 : }
1528 : }
1529 : }
1530 : else
1531 : {
1532 5 : const int nStrips = DIV_ROUND_UP(nRasterYSize, m_nRowsPerStrip);
1533 5 : if (nBands == 1 || m_nPlanarConfig == PLANARCONFIG_CONTIG)
1534 : {
1535 4 : vsi_l_offset nLastStripEnd = panOffsets[0] + panByteCounts[0];
1536 16 : for (int iStrip = 1; iStrip < nStrips; iStrip++)
1537 : {
1538 12 : if (nLastStripEnd != panOffsets[iStrip])
1539 0 : return false;
1540 12 : nLastStripEnd = panOffsets[iStrip] + panByteCounts[iStrip];
1541 4 : }
1542 : }
1543 : else
1544 : {
1545 : // Note: we could potentially have BIL order with m_nRowsPerStrip ==
1546 : // 1 and if strips are ordered strip_line_1_band_1, ...,
1547 : // strip_line_1_band_N, strip_line2_band1, ... strip_line2_band_N,
1548 : // etc.... but that'd be faily exotic ! So only detect BSQ layout
1549 : // here
1550 1 : nBandOffset = static_cast<GIntBig>(panOffsets[nStrips]) -
1551 1 : static_cast<GIntBig>(panOffsets[0]);
1552 4 : for (int i = 0; i < nBands; i++)
1553 : {
1554 3 : uint32_t iStripOffset = nStrips * i;
1555 3 : vsi_l_offset nLastStripEnd =
1556 3 : panOffsets[iStripOffset] + panByteCounts[iStripOffset];
1557 3 : for (int iStrip = 1; iStrip < nStrips; iStrip++)
1558 : {
1559 0 : if (nLastStripEnd != panOffsets[iStripOffset + iStrip])
1560 0 : return false;
1561 0 : nLastStripEnd = panOffsets[iStripOffset + iStrip] +
1562 0 : panByteCounts[iStripOffset + iStrip];
1563 : }
1564 3 : if (i >= 2 && static_cast<GIntBig>(panOffsets[iStripOffset]) -
1565 1 : static_cast<GIntBig>(
1566 1 : panOffsets[iStripOffset - nStrips]) !=
1567 : nBandOffset)
1568 : {
1569 0 : return false;
1570 : }
1571 : }
1572 : }
1573 : }
1574 :
1575 7 : sLayout.osRawFilename = m_pszFilename;
1576 7 : sLayout.eInterleaving = eInterleaving;
1577 7 : sLayout.eDataType = eDT;
1578 : #ifdef CPL_LSB
1579 7 : sLayout.bLittleEndianOrder = !TIFFIsByteSwapped(m_hTIFF);
1580 : #else
1581 : sLayout.bLittleEndianOrder = TIFFIsByteSwapped(m_hTIFF);
1582 : #endif
1583 7 : sLayout.nImageOffset = nImgOffset;
1584 7 : sLayout.nPixelOffset = nPixelOffset;
1585 7 : sLayout.nLineOffset = nLineOffset;
1586 7 : sLayout.nBandOffset = nBandOffset;
1587 :
1588 7 : return true;
1589 : }
1590 :
1591 : /************************************************************************/
1592 : /* GTiffDatasetLibGeotiffErrorCallback() */
1593 : /************************************************************************/
1594 :
1595 0 : static void GTiffDatasetLibGeotiffErrorCallback(GTIF *, int level,
1596 : const char *pszMsg, ...)
1597 : {
1598 : va_list ap;
1599 0 : va_start(ap, pszMsg);
1600 0 : CPLErrorV((level == LIBGEOTIFF_WARNING) ? CE_Warning : CE_Failure,
1601 : CPLE_AppDefined, pszMsg, ap);
1602 0 : va_end(ap);
1603 0 : }
1604 :
1605 : /************************************************************************/
1606 : /* GTIFNew() */
1607 : /************************************************************************/
1608 :
1609 32895 : /* static */ GTIF *GTiffDataset::GTIFNew(TIFF *hTIFF)
1610 : {
1611 32895 : GTIF *gtif = GTIFNewEx(hTIFF, GTiffDatasetLibGeotiffErrorCallback, nullptr);
1612 32895 : if (gtif)
1613 : {
1614 32895 : GTIFAttachPROJContext(gtif, OSRGetProjTLSContext());
1615 : }
1616 32895 : return gtif;
1617 : }
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