/src/gdal/frmts/vrt/vrtsources.cpp
Line | Count | Source |
1 | | /****************************************************************************** |
2 | | * |
3 | | * Project: Virtual GDAL Datasets |
4 | | * Purpose: Implementation of VRTSimpleSource, VRTFuncSource and |
5 | | * VRTAveragedSource. |
6 | | * Author: Frank Warmerdam <warmerdam@pobox.com> |
7 | | * |
8 | | ****************************************************************************** |
9 | | * Copyright (c) 2001, Frank Warmerdam <warmerdam@pobox.com> |
10 | | * Copyright (c) 2008-2013, Even Rouault <even dot rouault at spatialys.com> |
11 | | * |
12 | | * SPDX-License-Identifier: MIT |
13 | | ****************************************************************************/ |
14 | | |
15 | | #include "gdal_vrt.h" |
16 | | #include "vrtdataset.h" |
17 | | |
18 | | #include <cassert> |
19 | | #include <climits> |
20 | | #include <cmath> |
21 | | #include <cstddef> |
22 | | #include <cstdio> |
23 | | #include <cstdlib> |
24 | | #include <cstring> |
25 | | #include <algorithm> |
26 | | #include <limits> |
27 | | #include <string> |
28 | | |
29 | | #include "cpl_conv.h" |
30 | | #include "cpl_error.h" |
31 | | #include "cpl_hash_set.h" |
32 | | #include "cpl_minixml.h" |
33 | | #include "cpl_progress.h" |
34 | | #include "cpl_string.h" |
35 | | #include "cpl_vsi.h" |
36 | | #include "gdal.h" |
37 | | #include "gdal_priv.h" |
38 | | #include "gdal_proxy.h" |
39 | | #include "gdal_priv_templates.hpp" |
40 | | #include "gdalsubdatasetinfo.h" |
41 | | |
42 | | /*! @cond Doxygen_Suppress */ |
43 | | |
44 | | // #define DEBUG_VERBOSE 1 |
45 | | |
46 | | /************************************************************************/ |
47 | | /* ==================================================================== */ |
48 | | /* VRTSource */ |
49 | | /* ==================================================================== */ |
50 | | /************************************************************************/ |
51 | | |
52 | | VRTSource::~VRTSource() |
53 | 0 | { |
54 | 0 | } |
55 | | |
56 | | /************************************************************************/ |
57 | | /* GetFileList() */ |
58 | | /************************************************************************/ |
59 | | |
60 | | void VRTSource::GetFileList(char *** /* ppapszFileList */, int * /* pnSize */, |
61 | | int * /* pnMaxSize */, CPLHashSet * /* hSetFiles */) |
62 | 0 | { |
63 | 0 | } |
64 | | |
65 | | /************************************************************************/ |
66 | | /* ==================================================================== */ |
67 | | /* VRTSimpleSource */ |
68 | | /* ==================================================================== */ |
69 | | /************************************************************************/ |
70 | | |
71 | | /************************************************************************/ |
72 | | /* VRTSimpleSource() */ |
73 | | /************************************************************************/ |
74 | | |
75 | 0 | VRTSimpleSource::VRTSimpleSource() = default; |
76 | | |
77 | | /************************************************************************/ |
78 | | /* VRTSimpleSource() */ |
79 | | /************************************************************************/ |
80 | | |
81 | | VRTSimpleSource::VRTSimpleSource(const VRTSimpleSource *poSrcSource, |
82 | | double dfXDstRatio, double dfYDstRatio) |
83 | 0 | : VRTSource(*poSrcSource), |
84 | 0 | m_poMapSharedSources(poSrcSource->m_poMapSharedSources), |
85 | 0 | m_poRasterBand(poSrcSource->m_poRasterBand), |
86 | 0 | m_poMaskBandMainBand(poSrcSource->m_poMaskBandMainBand), |
87 | 0 | m_aosOpenOptionsOri(poSrcSource->m_aosOpenOptionsOri), |
88 | 0 | m_aosOpenOptions(poSrcSource->m_aosOpenOptions), |
89 | 0 | m_bSrcDSNameFromVRT(poSrcSource->m_bSrcDSNameFromVRT), |
90 | 0 | m_nBand(poSrcSource->m_nBand), |
91 | 0 | m_bGetMaskBand(poSrcSource->m_bGetMaskBand), |
92 | 0 | m_dfSrcXOff(poSrcSource->m_dfSrcXOff), |
93 | 0 | m_dfSrcYOff(poSrcSource->m_dfSrcYOff), |
94 | 0 | m_dfSrcXSize(poSrcSource->m_dfSrcXSize), |
95 | 0 | m_dfSrcYSize(poSrcSource->m_dfSrcYSize), |
96 | 0 | m_nMaxValue(poSrcSource->m_nMaxValue), m_bRelativeToVRTOri(-1), |
97 | 0 | m_nExplicitSharedStatus(poSrcSource->m_nExplicitSharedStatus), |
98 | 0 | m_osSrcDSName(poSrcSource->m_osSrcDSName), |
99 | 0 | m_bDropRefOnSrcBand(poSrcSource->m_bDropRefOnSrcBand) |
100 | 0 | { |
101 | 0 | if (!poSrcSource->IsSrcWinSet() && !poSrcSource->IsDstWinSet() && |
102 | 0 | (dfXDstRatio != 1.0 || dfYDstRatio != 1.0)) |
103 | 0 | { |
104 | 0 | auto l_band = GetRasterBand(); |
105 | 0 | if (l_band) |
106 | 0 | { |
107 | 0 | m_dfSrcXOff = 0; |
108 | 0 | m_dfSrcYOff = 0; |
109 | 0 | m_dfSrcXSize = l_band->GetXSize(); |
110 | 0 | m_dfSrcYSize = l_band->GetYSize(); |
111 | 0 | m_dfDstXOff = 0; |
112 | 0 | m_dfDstYOff = 0; |
113 | 0 | m_dfDstXSize = l_band->GetXSize() * dfXDstRatio; |
114 | 0 | m_dfDstYSize = l_band->GetYSize() * dfYDstRatio; |
115 | 0 | } |
116 | 0 | } |
117 | 0 | else if (poSrcSource->IsDstWinSet()) |
118 | 0 | { |
119 | 0 | m_dfDstXOff = poSrcSource->m_dfDstXOff * dfXDstRatio; |
120 | 0 | m_dfDstYOff = poSrcSource->m_dfDstYOff * dfYDstRatio; |
121 | 0 | m_dfDstXSize = poSrcSource->m_dfDstXSize * dfXDstRatio; |
122 | 0 | m_dfDstYSize = poSrcSource->m_dfDstYSize * dfYDstRatio; |
123 | 0 | } |
124 | |
|
125 | 0 | if (m_bDropRefOnSrcBand) |
126 | 0 | { |
127 | 0 | GDALDataset *poDS = GetSourceDataset(); |
128 | 0 | if (poDS) |
129 | 0 | poDS->Reference(); |
130 | 0 | } |
131 | 0 | } |
132 | | |
133 | | /************************************************************************/ |
134 | | /* ~VRTSimpleSource() */ |
135 | | /************************************************************************/ |
136 | | |
137 | | VRTSimpleSource::~VRTSimpleSource() |
138 | | |
139 | 0 | { |
140 | 0 | if (m_bDropRefOnSrcBand) |
141 | 0 | { |
142 | 0 | GDALDataset *poDS = GetSourceDataset(); |
143 | 0 | if (poDS) |
144 | 0 | poDS->ReleaseRef(); |
145 | 0 | } |
146 | 0 | } |
147 | | |
148 | | /************************************************************************/ |
149 | | /* GetSourceDataset() */ |
150 | | /************************************************************************/ |
151 | | |
152 | | GDALDataset *VRTSimpleSource::GetSourceDataset() const |
153 | 0 | { |
154 | 0 | GDALDataset *poDS = nullptr; |
155 | 0 | if (m_poMaskBandMainBand) |
156 | 0 | poDS = m_poMaskBandMainBand->GetDataset(); |
157 | 0 | else if (m_poRasterBand) |
158 | 0 | poDS = m_poRasterBand->GetDataset(); |
159 | 0 | return poDS; |
160 | 0 | } |
161 | | |
162 | | /************************************************************************/ |
163 | | /* GetTypeStatic() */ |
164 | | /************************************************************************/ |
165 | | |
166 | | const char *VRTSimpleSource::GetTypeStatic() |
167 | 0 | { |
168 | 0 | static const char *TYPE = "SimpleSource"; |
169 | 0 | return TYPE; |
170 | 0 | } |
171 | | |
172 | | /************************************************************************/ |
173 | | /* GetType() */ |
174 | | /************************************************************************/ |
175 | | |
176 | | const char *VRTSimpleSource::GetType() const |
177 | 0 | { |
178 | 0 | return GetTypeStatic(); |
179 | 0 | } |
180 | | |
181 | | /************************************************************************/ |
182 | | /* FlushCache() */ |
183 | | /************************************************************************/ |
184 | | |
185 | | CPLErr VRTSimpleSource::FlushCache(bool bAtClosing) |
186 | | |
187 | 0 | { |
188 | 0 | if (m_poMaskBandMainBand != nullptr) |
189 | 0 | { |
190 | 0 | return m_poMaskBandMainBand->FlushCache(bAtClosing); |
191 | 0 | } |
192 | 0 | else if (m_poRasterBand != nullptr) |
193 | 0 | { |
194 | 0 | return m_poRasterBand->FlushCache(bAtClosing); |
195 | 0 | } |
196 | 0 | return CE_None; |
197 | 0 | } |
198 | | |
199 | | /************************************************************************/ |
200 | | /* UnsetPreservedRelativeFilenames() */ |
201 | | /************************************************************************/ |
202 | | |
203 | | void VRTSimpleSource::UnsetPreservedRelativeFilenames() |
204 | 0 | { |
205 | 0 | if (m_bRelativeToVRTOri && |
206 | 0 | !STARTS_WITH(m_osSourceFileNameOri.c_str(), "http://") && |
207 | 0 | !STARTS_WITH(m_osSourceFileNameOri.c_str(), "https://")) |
208 | 0 | { |
209 | 0 | m_bRelativeToVRTOri = -1; |
210 | 0 | m_osSourceFileNameOri = ""; |
211 | 0 | } |
212 | 0 | } |
213 | | |
214 | | /************************************************************************/ |
215 | | /* SetSrcBand() */ |
216 | | /************************************************************************/ |
217 | | |
218 | | void VRTSimpleSource::SetSrcBand(const char *pszFilename, int nBand) |
219 | | |
220 | 0 | { |
221 | 0 | m_nBand = nBand; |
222 | 0 | m_osSrcDSName = pszFilename; |
223 | 0 | } |
224 | | |
225 | | /************************************************************************/ |
226 | | /* SetSrcBand() */ |
227 | | /************************************************************************/ |
228 | | |
229 | | void VRTSimpleSource::SetSrcBand(GDALRasterBand *poNewSrcBand) |
230 | | |
231 | 0 | { |
232 | 0 | m_poRasterBand = poNewSrcBand; |
233 | 0 | m_nBand = m_poRasterBand->GetBand(); |
234 | 0 | auto poDS = poNewSrcBand->GetDataset(); |
235 | 0 | if (poDS != nullptr) |
236 | 0 | { |
237 | 0 | m_osSrcDSName = poDS->GetDescription(); |
238 | 0 | m_aosOpenOptions = CSLDuplicate(poDS->GetOpenOptions()); |
239 | 0 | m_aosOpenOptionsOri = m_aosOpenOptions; |
240 | 0 | } |
241 | 0 | } |
242 | | |
243 | | /************************************************************************/ |
244 | | /* SetSourceDatasetName() */ |
245 | | /************************************************************************/ |
246 | | |
247 | | void VRTSimpleSource::SetSourceDatasetName(const char *pszFilename, |
248 | | bool bRelativeToVRT) |
249 | 0 | { |
250 | 0 | CPLAssert(m_nBand >= 0); |
251 | 0 | m_osSrcDSName = pszFilename; |
252 | 0 | m_osSourceFileNameOri = pszFilename; |
253 | 0 | m_bRelativeToVRTOri = bRelativeToVRT; |
254 | 0 | } |
255 | | |
256 | | /************************************************************************/ |
257 | | /* SetSrcMaskBand() */ |
258 | | /************************************************************************/ |
259 | | |
260 | | // poSrcBand is not the mask band, but the band from which the mask band is |
261 | | // taken. |
262 | | void VRTSimpleSource::SetSrcMaskBand(GDALRasterBand *poNewSrcBand) |
263 | | |
264 | 0 | { |
265 | 0 | m_poRasterBand = poNewSrcBand->GetMaskBand(); |
266 | 0 | m_poMaskBandMainBand = poNewSrcBand; |
267 | 0 | m_nBand = poNewSrcBand->GetBand(); |
268 | 0 | auto poDS = poNewSrcBand->GetDataset(); |
269 | 0 | if (poDS != nullptr) |
270 | 0 | { |
271 | 0 | m_osSrcDSName = poDS->GetDescription(); |
272 | 0 | m_aosOpenOptions = CSLDuplicate(poDS->GetOpenOptions()); |
273 | 0 | m_aosOpenOptionsOri = m_aosOpenOptions; |
274 | 0 | } |
275 | 0 | m_bGetMaskBand = true; |
276 | 0 | } |
277 | | |
278 | | /************************************************************************/ |
279 | | /* RoundIfCloseToInt() */ |
280 | | /************************************************************************/ |
281 | | |
282 | | static double RoundIfCloseToInt(double dfValue) |
283 | 0 | { |
284 | 0 | double dfClosestInt = floor(dfValue + 0.5); |
285 | 0 | return (fabs(dfValue - dfClosestInt) < 1e-3) ? dfClosestInt : dfValue; |
286 | 0 | } |
287 | | |
288 | | /************************************************************************/ |
289 | | /* SetSrcWindow() */ |
290 | | /************************************************************************/ |
291 | | |
292 | | void VRTSimpleSource::SetSrcWindow(double dfNewXOff, double dfNewYOff, |
293 | | double dfNewXSize, double dfNewYSize) |
294 | | |
295 | 0 | { |
296 | 0 | m_dfSrcXOff = RoundIfCloseToInt(dfNewXOff); |
297 | 0 | m_dfSrcYOff = RoundIfCloseToInt(dfNewYOff); |
298 | 0 | m_dfSrcXSize = RoundIfCloseToInt(dfNewXSize); |
299 | 0 | m_dfSrcYSize = RoundIfCloseToInt(dfNewYSize); |
300 | 0 | } |
301 | | |
302 | | /************************************************************************/ |
303 | | /* SetDstWindow() */ |
304 | | /************************************************************************/ |
305 | | |
306 | | void VRTSimpleSource::SetDstWindow(double dfNewXOff, double dfNewYOff, |
307 | | double dfNewXSize, double dfNewYSize) |
308 | | |
309 | 0 | { |
310 | 0 | m_dfDstXOff = RoundIfCloseToInt(dfNewXOff); |
311 | 0 | m_dfDstYOff = RoundIfCloseToInt(dfNewYOff); |
312 | 0 | m_dfDstXSize = RoundIfCloseToInt(dfNewXSize); |
313 | 0 | m_dfDstYSize = RoundIfCloseToInt(dfNewYSize); |
314 | 0 | } |
315 | | |
316 | | /************************************************************************/ |
317 | | /* GetDstWindow() */ |
318 | | /************************************************************************/ |
319 | | |
320 | | void VRTSimpleSource::GetDstWindow(double &dfDstXOff, double &dfDstYOff, |
321 | | double &dfDstXSize, double &dfDstYSize) const |
322 | 0 | { |
323 | 0 | dfDstXOff = m_dfDstXOff; |
324 | 0 | dfDstYOff = m_dfDstYOff; |
325 | 0 | dfDstXSize = m_dfDstXSize; |
326 | 0 | dfDstYSize = m_dfDstYSize; |
327 | 0 | } |
328 | | |
329 | | /************************************************************************/ |
330 | | /* DstWindowIntersects() */ |
331 | | /************************************************************************/ |
332 | | |
333 | | bool VRTSimpleSource::DstWindowIntersects(double dfXOff, double dfYOff, |
334 | | double dfXSize, double dfYSize) const |
335 | 0 | { |
336 | 0 | return IsDstWinSet() && m_dfDstXOff + m_dfDstXSize > dfXOff && |
337 | 0 | m_dfDstYOff + m_dfDstYSize > dfYOff && |
338 | 0 | m_dfDstXOff < dfXOff + dfXSize && m_dfDstYOff < dfYOff + dfYSize; |
339 | 0 | } |
340 | | |
341 | | /************************************************************************/ |
342 | | /* IsSlowSource() */ |
343 | | /************************************************************************/ |
344 | | |
345 | | static bool IsSlowSource(const char *pszSrcName) |
346 | 0 | { |
347 | 0 | return strstr(pszSrcName, "/vsicurl/http") != nullptr || |
348 | 0 | strstr(pszSrcName, "/vsicurl/ftp") != nullptr || |
349 | 0 | (strstr(pszSrcName, "/vsicurl?") != nullptr && |
350 | 0 | strstr(pszSrcName, "&url=http") != nullptr); |
351 | 0 | } |
352 | | |
353 | | /************************************************************************/ |
354 | | /* AddSourceFilenameNode() */ |
355 | | /************************************************************************/ |
356 | | |
357 | | /* static */ |
358 | | std::pair<std::string, bool> VRTSimpleSource::ComputeSourceNameAndRelativeFlag( |
359 | | const char *pszVRTPath, const std::string &osSourceNameIn) |
360 | 0 | { |
361 | 0 | std::string osSourceFilename = osSourceNameIn; |
362 | 0 | int bRelativeToVRT = false; |
363 | | |
364 | | // If this isn't actually a file, don't even try to know if it is a |
365 | | // relative path. It can't be !, and unfortunately CPLIsFilenameRelative() |
366 | | // can only work with strings that are filenames To be clear |
367 | | // NITF_TOC_ENTRY:CADRG_JOG-A_250K_1_0:some_path isn't a relative file |
368 | | // path. |
369 | 0 | VSIStatBufL sStat; |
370 | 0 | if (VSIStatExL(osSourceFilename.c_str(), &sStat, VSI_STAT_EXISTS_FLAG) != 0) |
371 | 0 | { |
372 | | // Try subdatasetinfo API first |
373 | | // Note: this will become the only branch when subdatasetinfo will become |
374 | | // available for NITF_IM, RASTERLITE and TILEDB |
375 | 0 | const auto oSubDSInfo{GDALGetSubdatasetInfo(osSourceFilename.c_str())}; |
376 | 0 | if (oSubDSInfo && !oSubDSInfo->GetPathComponent().empty()) |
377 | 0 | { |
378 | 0 | auto path{oSubDSInfo->GetPathComponent()}; |
379 | 0 | std::string relPath{CPLExtractRelativePath(pszVRTPath, path.c_str(), |
380 | 0 | &bRelativeToVRT)}; |
381 | 0 | osSourceFilename = oSubDSInfo->ModifyPathComponent(relPath); |
382 | 0 | GDALDestroySubdatasetInfo(oSubDSInfo); |
383 | 0 | } |
384 | 0 | else |
385 | 0 | { |
386 | 0 | for (const char *pszSyntax : |
387 | 0 | GDALDataset::apszSpecialSubDatasetSyntax) |
388 | 0 | { |
389 | 0 | CPLString osPrefix(pszSyntax); |
390 | 0 | osPrefix.resize(strchr(pszSyntax, ':') - pszSyntax + 1); |
391 | 0 | if (pszSyntax[osPrefix.size()] == '"') |
392 | 0 | osPrefix += '"'; |
393 | 0 | if (EQUALN(osSourceFilename.c_str(), osPrefix, osPrefix.size())) |
394 | 0 | { |
395 | 0 | if (STARTS_WITH_CI(pszSyntax + osPrefix.size(), "{ANY}")) |
396 | 0 | { |
397 | 0 | const char *pszLastPart = |
398 | 0 | strrchr(osSourceFilename.c_str(), ':') + 1; |
399 | | // CSV:z:/foo.xyz |
400 | 0 | if ((pszLastPart[0] == '/' || pszLastPart[0] == '\\') && |
401 | 0 | pszLastPart - osSourceFilename.c_str() >= 3 && |
402 | 0 | pszLastPart[-3] == ':') |
403 | 0 | pszLastPart -= 2; |
404 | 0 | CPLString osPrefixFilename(osSourceFilename); |
405 | 0 | osPrefixFilename.resize(pszLastPart - |
406 | 0 | osSourceFilename.c_str()); |
407 | 0 | osSourceFilename = CPLExtractRelativePath( |
408 | 0 | pszVRTPath, pszLastPart, &bRelativeToVRT); |
409 | 0 | osSourceFilename = osPrefixFilename + osSourceFilename; |
410 | 0 | } |
411 | 0 | else if (STARTS_WITH_CI(pszSyntax + osPrefix.size(), |
412 | 0 | "{FILENAME}")) |
413 | 0 | { |
414 | 0 | CPLString osFilename(osSourceFilename.c_str() + |
415 | 0 | osPrefix.size()); |
416 | 0 | size_t nPos = 0; |
417 | 0 | if (osFilename.size() >= 3 && osFilename[1] == ':' && |
418 | 0 | (osFilename[2] == '\\' || osFilename[2] == '/')) |
419 | 0 | nPos = 2; |
420 | 0 | nPos = osFilename.find( |
421 | 0 | pszSyntax[osPrefix.size() + strlen("{FILENAME}")], |
422 | 0 | nPos); |
423 | 0 | if (nPos != std::string::npos) |
424 | 0 | { |
425 | 0 | const CPLString osSuffix = osFilename.substr(nPos); |
426 | 0 | osFilename.resize(nPos); |
427 | 0 | osSourceFilename = CPLExtractRelativePath( |
428 | 0 | pszVRTPath, osFilename, &bRelativeToVRT); |
429 | 0 | osSourceFilename = |
430 | 0 | osPrefix + osSourceFilename + osSuffix; |
431 | 0 | } |
432 | 0 | } |
433 | 0 | break; |
434 | 0 | } |
435 | 0 | } |
436 | 0 | } |
437 | 0 | } |
438 | 0 | else |
439 | 0 | { |
440 | 0 | std::string osVRTFilename = pszVRTPath; |
441 | 0 | std::string osSourceDataset = osSourceNameIn; |
442 | 0 | ; |
443 | 0 | char *pszCurDir = CPLGetCurrentDir(); |
444 | 0 | if (CPLIsFilenameRelative(osSourceDataset.c_str()) && |
445 | 0 | !CPLIsFilenameRelative(osVRTFilename.c_str()) && |
446 | 0 | pszCurDir != nullptr) |
447 | 0 | { |
448 | 0 | osSourceDataset = CPLFormFilenameSafe( |
449 | 0 | pszCurDir, osSourceDataset.c_str(), nullptr); |
450 | 0 | } |
451 | 0 | else if (!CPLIsFilenameRelative(osSourceDataset.c_str()) && |
452 | 0 | CPLIsFilenameRelative(osVRTFilename.c_str()) && |
453 | 0 | pszCurDir != nullptr) |
454 | 0 | { |
455 | 0 | osVRTFilename = |
456 | 0 | CPLFormFilenameSafe(pszCurDir, osVRTFilename.c_str(), nullptr); |
457 | 0 | } |
458 | 0 | CPLFree(pszCurDir); |
459 | 0 | osSourceFilename = CPLExtractRelativePath( |
460 | 0 | osVRTFilename.c_str(), osSourceDataset.c_str(), &bRelativeToVRT); |
461 | 0 | } |
462 | |
|
463 | 0 | return {osSourceFilename, static_cast<bool>(bRelativeToVRT)}; |
464 | 0 | } |
465 | | |
466 | | /************************************************************************/ |
467 | | /* AddSourceFilenameNode() */ |
468 | | /************************************************************************/ |
469 | | |
470 | | void VRTSimpleSource::AddSourceFilenameNode(const char *pszVRTPath, |
471 | | CPLXMLNode *psSrc) |
472 | 0 | { |
473 | |
|
474 | 0 | bool bRelativeToVRT = false; |
475 | 0 | std::string osSourceFilename; |
476 | |
|
477 | 0 | if (m_bRelativeToVRTOri >= 0) |
478 | 0 | { |
479 | 0 | osSourceFilename = m_osSourceFileNameOri; |
480 | 0 | bRelativeToVRT = CPL_TO_BOOL(m_bRelativeToVRTOri); |
481 | 0 | } |
482 | 0 | else if (IsSlowSource(m_osSrcDSName)) |
483 | 0 | { |
484 | | // Testing the existence of remote resources can be excruciating |
485 | | // slow, so let's just suppose they exist. |
486 | 0 | osSourceFilename = m_osSrcDSName; |
487 | 0 | bRelativeToVRT = false; |
488 | 0 | } |
489 | 0 | else |
490 | 0 | { |
491 | 0 | std::tie(osSourceFilename, bRelativeToVRT) = |
492 | 0 | ComputeSourceNameAndRelativeFlag(pszVRTPath, m_osSrcDSName); |
493 | 0 | } |
494 | |
|
495 | 0 | CPLSetXMLValue(psSrc, "SourceFilename", osSourceFilename.c_str()); |
496 | |
|
497 | 0 | CPLCreateXMLNode(CPLCreateXMLNode(CPLGetXMLNode(psSrc, "SourceFilename"), |
498 | 0 | CXT_Attribute, "relativeToVRT"), |
499 | 0 | CXT_Text, bRelativeToVRT ? "1" : "0"); |
500 | | |
501 | | // Determine if we must write the shared attribute. The config option |
502 | | // will override the m_nExplicitSharedStatus value |
503 | 0 | const char *pszShared = CPLGetConfigOption("VRT_SHARED_SOURCE", nullptr); |
504 | 0 | if ((pszShared == nullptr && m_nExplicitSharedStatus == 0) || |
505 | 0 | (pszShared != nullptr && !CPLTestBool(pszShared))) |
506 | 0 | { |
507 | 0 | CPLCreateXMLNode( |
508 | 0 | CPLCreateXMLNode(CPLGetXMLNode(psSrc, "SourceFilename"), |
509 | 0 | CXT_Attribute, "shared"), |
510 | 0 | CXT_Text, "0"); |
511 | 0 | } |
512 | 0 | } |
513 | | |
514 | | /************************************************************************/ |
515 | | /* SerializeToXML() */ |
516 | | /************************************************************************/ |
517 | | |
518 | | CPLXMLNode *VRTSimpleSource::SerializeToXML(const char *pszVRTPath) |
519 | | |
520 | 0 | { |
521 | 0 | CPLXMLNode *const psSrc = |
522 | 0 | CPLCreateXMLNode(nullptr, CXT_Element, GetTypeStatic()); |
523 | |
|
524 | 0 | if (!m_osResampling.empty()) |
525 | 0 | { |
526 | 0 | CPLCreateXMLNode(CPLCreateXMLNode(psSrc, CXT_Attribute, "resampling"), |
527 | 0 | CXT_Text, m_osResampling.c_str()); |
528 | 0 | } |
529 | |
|
530 | 0 | if (!m_osName.empty()) |
531 | 0 | { |
532 | 0 | CPLAddXMLAttributeAndValue(psSrc, "name", m_osName.c_str()); |
533 | 0 | } |
534 | |
|
535 | 0 | if (m_bSrcDSNameFromVRT) |
536 | 0 | { |
537 | 0 | CPLAddXMLChild(psSrc, CPLParseXMLString(m_osSrcDSName.c_str())); |
538 | 0 | } |
539 | 0 | else |
540 | 0 | { |
541 | 0 | bool bDone = false; |
542 | 0 | if (m_osSrcDSName.empty() && m_poRasterBand) |
543 | 0 | { |
544 | 0 | auto poSrcDS = m_poRasterBand->GetDataset(); |
545 | 0 | if (poSrcDS) |
546 | 0 | { |
547 | 0 | VRTDataset *poSrcVRTDS = nullptr; |
548 | | // For GDALComputedDataset |
549 | 0 | void *pHandle = poSrcDS->GetInternalHandle("VRT_DATASET"); |
550 | 0 | if (pHandle && poSrcDS->GetInternalHandle(nullptr) == nullptr) |
551 | 0 | { |
552 | 0 | poSrcVRTDS = static_cast<VRTDataset *>(pHandle); |
553 | 0 | } |
554 | 0 | else |
555 | 0 | { |
556 | 0 | poSrcVRTDS = dynamic_cast<VRTDataset *>(poSrcDS); |
557 | 0 | } |
558 | 0 | if (poSrcVRTDS) |
559 | 0 | { |
560 | 0 | poSrcVRTDS->UnsetPreservedRelativeFilenames(); |
561 | 0 | CPLAddXMLChild(psSrc, |
562 | 0 | poSrcVRTDS->SerializeToXML(pszVRTPath)); |
563 | 0 | bDone = true; |
564 | 0 | } |
565 | 0 | } |
566 | 0 | } |
567 | 0 | if (!bDone) |
568 | 0 | { |
569 | 0 | AddSourceFilenameNode(pszVRTPath, psSrc); |
570 | 0 | } |
571 | 0 | } |
572 | |
|
573 | 0 | GDALSerializeOpenOptionsToXML(psSrc, m_aosOpenOptionsOri.List()); |
574 | |
|
575 | 0 | if (m_bGetMaskBand) |
576 | 0 | CPLSetXMLValue(psSrc, "SourceBand", CPLSPrintf("mask,%d", m_nBand)); |
577 | 0 | else |
578 | 0 | CPLSetXMLValue(psSrc, "SourceBand", CPLSPrintf("%d", m_nBand)); |
579 | | |
580 | | // TODO: in a later version, no longer emit SourceProperties, which |
581 | | // is no longer used by GDAL 3.4 |
582 | 0 | if (m_poRasterBand) |
583 | 0 | { |
584 | | /* Write a few additional useful properties of the dataset */ |
585 | | /* so that we can use a proxy dataset when re-opening. See XMLInit() */ |
586 | | /* below */ |
587 | 0 | CPLSetXMLValue(psSrc, "SourceProperties.#RasterXSize", |
588 | 0 | CPLSPrintf("%d", m_poRasterBand->GetXSize())); |
589 | 0 | CPLSetXMLValue(psSrc, "SourceProperties.#RasterYSize", |
590 | 0 | CPLSPrintf("%d", m_poRasterBand->GetYSize())); |
591 | 0 | CPLSetXMLValue( |
592 | 0 | psSrc, "SourceProperties.#DataType", |
593 | 0 | GDALGetDataTypeName(m_poRasterBand->GetRasterDataType())); |
594 | |
|
595 | 0 | int nBlockXSize = 0; |
596 | 0 | int nBlockYSize = 0; |
597 | 0 | m_poRasterBand->GetBlockSize(&nBlockXSize, &nBlockYSize); |
598 | |
|
599 | 0 | CPLSetXMLValue(psSrc, "SourceProperties.#BlockXSize", |
600 | 0 | CPLSPrintf("%d", nBlockXSize)); |
601 | 0 | CPLSetXMLValue(psSrc, "SourceProperties.#BlockYSize", |
602 | 0 | CPLSPrintf("%d", nBlockYSize)); |
603 | 0 | } |
604 | |
|
605 | 0 | if (IsSrcWinSet()) |
606 | 0 | { |
607 | 0 | CPLSetXMLValue(psSrc, "SrcRect.#xOff", |
608 | 0 | CPLSPrintf("%.15g", m_dfSrcXOff)); |
609 | 0 | CPLSetXMLValue(psSrc, "SrcRect.#yOff", |
610 | 0 | CPLSPrintf("%.15g", m_dfSrcYOff)); |
611 | 0 | CPLSetXMLValue(psSrc, "SrcRect.#xSize", |
612 | 0 | CPLSPrintf("%.15g", m_dfSrcXSize)); |
613 | 0 | CPLSetXMLValue(psSrc, "SrcRect.#ySize", |
614 | 0 | CPLSPrintf("%.15g", m_dfSrcYSize)); |
615 | 0 | } |
616 | |
|
617 | 0 | if (IsDstWinSet()) |
618 | 0 | { |
619 | 0 | CPLSetXMLValue(psSrc, "DstRect.#xOff", |
620 | 0 | CPLSPrintf("%.15g", m_dfDstXOff)); |
621 | 0 | CPLSetXMLValue(psSrc, "DstRect.#yOff", |
622 | 0 | CPLSPrintf("%.15g", m_dfDstYOff)); |
623 | 0 | CPLSetXMLValue(psSrc, "DstRect.#xSize", |
624 | 0 | CPLSPrintf("%.15g", m_dfDstXSize)); |
625 | 0 | CPLSetXMLValue(psSrc, "DstRect.#ySize", |
626 | 0 | CPLSPrintf("%.15g", m_dfDstYSize)); |
627 | 0 | } |
628 | |
|
629 | 0 | return psSrc; |
630 | 0 | } |
631 | | |
632 | | /************************************************************************/ |
633 | | /* XMLInit() */ |
634 | | /************************************************************************/ |
635 | | |
636 | | CPLErr VRTSimpleSource::XMLInit(const CPLXMLNode *psSrc, const char *pszVRTPath, |
637 | | VRTMapSharedResources &oMapSharedSources) |
638 | | |
639 | 0 | { |
640 | 0 | m_poMapSharedSources = &oMapSharedSources; |
641 | |
|
642 | 0 | m_osResampling = CPLGetXMLValue(psSrc, "resampling", ""); |
643 | 0 | m_osName = CPLGetXMLValue(psSrc, "name", ""); |
644 | | |
645 | | /* -------------------------------------------------------------------- */ |
646 | | /* Prepare filename. */ |
647 | | /* -------------------------------------------------------------------- */ |
648 | 0 | const CPLXMLNode *psSourceFileNameNode = |
649 | 0 | CPLGetXMLNode(psSrc, "SourceFilename"); |
650 | 0 | const CPLXMLNode *psSourceVRTDataset = CPLGetXMLNode(psSrc, "VRTDataset"); |
651 | 0 | const char *pszFilename = |
652 | 0 | psSourceFileNameNode ? CPLGetXMLValue(psSourceFileNameNode, nullptr, "") |
653 | 0 | : ""; |
654 | |
|
655 | 0 | if (pszFilename[0] == '\0' && !psSourceVRTDataset) |
656 | 0 | { |
657 | 0 | CPLError(CE_Warning, CPLE_AppDefined, |
658 | 0 | "Missing <SourceFilename> or <VRTDataset> element in <%s>.", |
659 | 0 | psSrc->pszValue); |
660 | 0 | return CE_Failure; |
661 | 0 | } |
662 | | |
663 | | // Backup original filename and relativeToVRT so as to be able to |
664 | | // serialize them identically again (#5985) |
665 | 0 | m_osSourceFileNameOri = pszFilename; |
666 | 0 | if (pszFilename[0]) |
667 | 0 | { |
668 | 0 | m_bRelativeToVRTOri = |
669 | 0 | atoi(CPLGetXMLValue(psSourceFileNameNode, "relativetoVRT", "0")); |
670 | 0 | const char *pszShared = |
671 | 0 | CPLGetXMLValue(psSourceFileNameNode, "shared", nullptr); |
672 | 0 | if (pszShared == nullptr) |
673 | 0 | { |
674 | 0 | pszShared = CPLGetConfigOption("VRT_SHARED_SOURCE", nullptr); |
675 | 0 | } |
676 | 0 | if (pszShared != nullptr) |
677 | 0 | { |
678 | 0 | m_nExplicitSharedStatus = CPLTestBool(pszShared); |
679 | 0 | } |
680 | |
|
681 | 0 | m_osSrcDSName = GDALDataset::BuildFilename( |
682 | 0 | pszFilename, pszVRTPath, CPL_TO_BOOL(m_bRelativeToVRTOri)); |
683 | 0 | } |
684 | 0 | else if (psSourceVRTDataset) |
685 | 0 | { |
686 | 0 | CPLXMLNode sNode; |
687 | 0 | sNode.eType = psSourceVRTDataset->eType; |
688 | 0 | sNode.pszValue = psSourceVRTDataset->pszValue; |
689 | 0 | sNode.psNext = nullptr; |
690 | 0 | sNode.psChild = psSourceVRTDataset->psChild; |
691 | 0 | char *pszXML = CPLSerializeXMLTree(&sNode); |
692 | 0 | if (pszXML) |
693 | 0 | { |
694 | 0 | m_bSrcDSNameFromVRT = true; |
695 | 0 | m_osSrcDSName = pszXML; |
696 | 0 | CPLFree(pszXML); |
697 | 0 | } |
698 | 0 | } |
699 | |
|
700 | 0 | const char *pszSourceBand = CPLGetXMLValue(psSrc, "SourceBand", "1"); |
701 | 0 | m_bGetMaskBand = false; |
702 | 0 | if (STARTS_WITH_CI(pszSourceBand, "mask")) |
703 | 0 | { |
704 | 0 | m_bGetMaskBand = true; |
705 | 0 | if (pszSourceBand[4] == ',') |
706 | 0 | m_nBand = atoi(pszSourceBand + 5); |
707 | 0 | else |
708 | 0 | m_nBand = 1; |
709 | 0 | } |
710 | 0 | else |
711 | 0 | { |
712 | 0 | m_nBand = atoi(pszSourceBand); |
713 | 0 | } |
714 | 0 | if (!GDALCheckBandCount(m_nBand, 0)) |
715 | 0 | { |
716 | 0 | CPLError(CE_Warning, CPLE_AppDefined, |
717 | 0 | "Invalid <SourceBand> element in VRTRasterBand."); |
718 | 0 | return CE_Failure; |
719 | 0 | } |
720 | | |
721 | 0 | m_aosOpenOptions = GDALDeserializeOpenOptionsFromXML(psSrc); |
722 | 0 | m_aosOpenOptionsOri = m_aosOpenOptions; |
723 | 0 | if (strstr(m_osSrcDSName.c_str(), "<VRTDataset") != nullptr) |
724 | 0 | m_aosOpenOptions.SetNameValue("ROOT_PATH", pszVRTPath); |
725 | |
|
726 | 0 | return ParseSrcRectAndDstRect(psSrc); |
727 | 0 | } |
728 | | |
729 | | /************************************************************************/ |
730 | | /* ParseSrcRectAndDstRect() */ |
731 | | /************************************************************************/ |
732 | | |
733 | | CPLErr VRTSimpleSource::ParseSrcRectAndDstRect(const CPLXMLNode *psSrc) |
734 | 0 | { |
735 | 0 | const auto GetAttrValue = [](const CPLXMLNode *psNode, |
736 | 0 | const char *pszAttrName, double dfDefaultVal) |
737 | 0 | { |
738 | 0 | if (const char *pszVal = CPLGetXMLValue(psNode, pszAttrName, nullptr)) |
739 | 0 | return CPLAtof(pszVal); |
740 | 0 | else |
741 | 0 | return dfDefaultVal; |
742 | 0 | }; |
743 | | |
744 | | /* -------------------------------------------------------------------- */ |
745 | | /* Set characteristics. */ |
746 | | /* -------------------------------------------------------------------- */ |
747 | 0 | const CPLXMLNode *const psSrcRect = CPLGetXMLNode(psSrc, "SrcRect"); |
748 | 0 | if (psSrcRect) |
749 | 0 | { |
750 | 0 | double xOff = GetAttrValue(psSrcRect, "xOff", UNINIT_WINDOW); |
751 | 0 | double yOff = GetAttrValue(psSrcRect, "yOff", UNINIT_WINDOW); |
752 | 0 | double xSize = GetAttrValue(psSrcRect, "xSize", UNINIT_WINDOW); |
753 | 0 | double ySize = GetAttrValue(psSrcRect, "ySize", UNINIT_WINDOW); |
754 | | // Test written that way to catch NaN values |
755 | 0 | if (!(xOff >= INT_MIN && xOff <= INT_MAX) || |
756 | 0 | !(yOff >= INT_MIN && yOff <= INT_MAX) || |
757 | 0 | !(xSize > 0 || xSize == UNINIT_WINDOW) || xSize > INT_MAX || |
758 | 0 | !(ySize > 0 || ySize == UNINIT_WINDOW) || ySize > INT_MAX) |
759 | 0 | { |
760 | 0 | CPLError(CE_Failure, CPLE_AppDefined, "Wrong values in SrcRect"); |
761 | 0 | return CE_Failure; |
762 | 0 | } |
763 | 0 | SetSrcWindow(xOff, yOff, xSize, ySize); |
764 | 0 | } |
765 | 0 | else |
766 | 0 | { |
767 | 0 | m_dfSrcXOff = UNINIT_WINDOW; |
768 | 0 | m_dfSrcYOff = UNINIT_WINDOW; |
769 | 0 | m_dfSrcXSize = UNINIT_WINDOW; |
770 | 0 | m_dfSrcYSize = UNINIT_WINDOW; |
771 | 0 | } |
772 | | |
773 | 0 | const CPLXMLNode *const psDstRect = CPLGetXMLNode(psSrc, "DstRect"); |
774 | 0 | if (psDstRect) |
775 | 0 | { |
776 | 0 | double xOff = GetAttrValue(psDstRect, "xOff", UNINIT_WINDOW); |
777 | 0 | ; |
778 | 0 | double yOff = GetAttrValue(psDstRect, "yOff", UNINIT_WINDOW); |
779 | 0 | double xSize = GetAttrValue(psDstRect, "xSize", UNINIT_WINDOW); |
780 | 0 | ; |
781 | 0 | double ySize = GetAttrValue(psDstRect, "ySize", UNINIT_WINDOW); |
782 | | // Test written that way to catch NaN values |
783 | 0 | if (!(xOff >= INT_MIN && xOff <= INT_MAX) || |
784 | 0 | !(yOff >= INT_MIN && yOff <= INT_MAX) || |
785 | 0 | !(xSize > 0 || xSize == UNINIT_WINDOW) || xSize > INT_MAX || |
786 | 0 | !(ySize > 0 || ySize == UNINIT_WINDOW) || ySize > INT_MAX) |
787 | 0 | { |
788 | 0 | CPLError(CE_Failure, CPLE_AppDefined, "Wrong values in DstRect"); |
789 | 0 | return CE_Failure; |
790 | 0 | } |
791 | 0 | SetDstWindow(xOff, yOff, xSize, ySize); |
792 | 0 | } |
793 | 0 | else |
794 | 0 | { |
795 | 0 | m_dfDstXOff = UNINIT_WINDOW; |
796 | 0 | m_dfDstYOff = UNINIT_WINDOW; |
797 | 0 | m_dfDstXSize = UNINIT_WINDOW; |
798 | 0 | m_dfDstYSize = UNINIT_WINDOW; |
799 | 0 | } |
800 | | |
801 | 0 | return CE_None; |
802 | 0 | } |
803 | | |
804 | | /************************************************************************/ |
805 | | /* GetFileList() */ |
806 | | /************************************************************************/ |
807 | | |
808 | | void VRTSimpleSource::GetFileList(char ***ppapszFileList, int *pnSize, |
809 | | int *pnMaxSize, CPLHashSet *hSetFiles) |
810 | 0 | { |
811 | 0 | if (!m_osSrcDSName.empty() && !m_bSrcDSNameFromVRT) |
812 | 0 | { |
813 | 0 | const char *pszFilename = m_osSrcDSName.c_str(); |
814 | | |
815 | | /* -------------------------------------------------------------------- |
816 | | */ |
817 | | /* Is it already in the list ? */ |
818 | | /* -------------------------------------------------------------------- |
819 | | */ |
820 | 0 | if (CPLHashSetLookup(hSetFiles, pszFilename) != nullptr) |
821 | 0 | return; |
822 | | |
823 | | /* -------------------------------------------------------------------- |
824 | | */ |
825 | | /* Grow array if necessary */ |
826 | | /* -------------------------------------------------------------------- |
827 | | */ |
828 | 0 | if (*pnSize + 1 >= *pnMaxSize) |
829 | 0 | { |
830 | 0 | *pnMaxSize = std::max(*pnSize + 2, 2 + 2 * (*pnMaxSize)); |
831 | 0 | *ppapszFileList = static_cast<char **>( |
832 | 0 | CPLRealloc(*ppapszFileList, sizeof(char *) * (*pnMaxSize))); |
833 | 0 | } |
834 | | |
835 | | /* -------------------------------------------------------------------- |
836 | | */ |
837 | | /* Add the string to the list */ |
838 | | /* -------------------------------------------------------------------- |
839 | | */ |
840 | 0 | (*ppapszFileList)[*pnSize] = CPLStrdup(pszFilename); |
841 | 0 | (*ppapszFileList)[(*pnSize + 1)] = nullptr; |
842 | 0 | CPLHashSetInsert(hSetFiles, (*ppapszFileList)[*pnSize]); |
843 | |
|
844 | 0 | (*pnSize)++; |
845 | 0 | } |
846 | 0 | } |
847 | | |
848 | | /************************************************************************/ |
849 | | /* OpenSource() */ |
850 | | /************************************************************************/ |
851 | | |
852 | | void VRTSimpleSource::OpenSource() const |
853 | 0 | { |
854 | 0 | CPLAssert(m_poRasterBand == nullptr); |
855 | | |
856 | | /* ----------------------------------------------------------------- */ |
857 | | /* Create a proxy dataset */ |
858 | | /* ----------------------------------------------------------------- */ |
859 | 0 | GDALProxyPoolDataset *proxyDS = nullptr; |
860 | 0 | std::string osKeyMapSharedSources; |
861 | 0 | if (m_poMapSharedSources) |
862 | 0 | { |
863 | 0 | osKeyMapSharedSources = m_osSrcDSName; |
864 | 0 | for (int i = 0; i < m_aosOpenOptions.size(); ++i) |
865 | 0 | { |
866 | 0 | osKeyMapSharedSources += "||"; |
867 | 0 | osKeyMapSharedSources += m_aosOpenOptions[i]; |
868 | 0 | } |
869 | |
|
870 | 0 | proxyDS = cpl::down_cast<GDALProxyPoolDataset *>( |
871 | 0 | m_poMapSharedSources->Get(osKeyMapSharedSources)); |
872 | 0 | } |
873 | |
|
874 | 0 | if (proxyDS == nullptr) |
875 | 0 | { |
876 | 0 | int bShared = true; |
877 | 0 | if (m_nExplicitSharedStatus != -1) |
878 | 0 | bShared = m_nExplicitSharedStatus; |
879 | |
|
880 | 0 | const CPLString osUniqueHandle(CPLSPrintf("%p", m_poMapSharedSources)); |
881 | 0 | proxyDS = GDALProxyPoolDataset::Create( |
882 | 0 | m_osSrcDSName, m_aosOpenOptions.List(), GA_ReadOnly, bShared, |
883 | 0 | osUniqueHandle.c_str()); |
884 | 0 | if (proxyDS == nullptr) |
885 | 0 | return; |
886 | 0 | } |
887 | 0 | else |
888 | 0 | { |
889 | 0 | proxyDS->Reference(); |
890 | 0 | } |
891 | | |
892 | 0 | if (m_bGetMaskBand) |
893 | 0 | { |
894 | 0 | GDALProxyPoolRasterBand *poMaskBand = |
895 | 0 | cpl::down_cast<GDALProxyPoolRasterBand *>( |
896 | 0 | proxyDS->GetRasterBand(m_nBand)); |
897 | 0 | poMaskBand->AddSrcMaskBandDescriptionFromUnderlying(); |
898 | 0 | } |
899 | | |
900 | | /* -------------------------------------------------------------------- */ |
901 | | /* Get the raster band. */ |
902 | | /* -------------------------------------------------------------------- */ |
903 | |
|
904 | 0 | m_poRasterBand = proxyDS->GetRasterBand(m_nBand); |
905 | 0 | if (m_poRasterBand == nullptr || !ValidateOpenedBand(m_poRasterBand)) |
906 | 0 | { |
907 | 0 | proxyDS->ReleaseRef(); |
908 | 0 | return; |
909 | 0 | } |
910 | | |
911 | 0 | if (m_bGetMaskBand) |
912 | 0 | { |
913 | 0 | m_poRasterBand = m_poRasterBand->GetMaskBand(); |
914 | 0 | if (m_poRasterBand == nullptr) |
915 | 0 | { |
916 | 0 | proxyDS->ReleaseRef(); |
917 | 0 | return; |
918 | 0 | } |
919 | 0 | m_poMaskBandMainBand = m_poRasterBand; |
920 | 0 | } |
921 | | |
922 | 0 | if (m_poMapSharedSources) |
923 | 0 | { |
924 | 0 | m_poMapSharedSources->Insert(osKeyMapSharedSources, proxyDS); |
925 | 0 | } |
926 | 0 | } |
927 | | |
928 | | /************************************************************************/ |
929 | | /* GetRasterBand() */ |
930 | | /************************************************************************/ |
931 | | |
932 | | GDALRasterBand *VRTSimpleSource::GetRasterBand() const |
933 | 0 | { |
934 | 0 | if (m_poRasterBand == nullptr) |
935 | 0 | OpenSource(); |
936 | 0 | return m_poRasterBand; |
937 | 0 | } |
938 | | |
939 | | /************************************************************************/ |
940 | | /* GetMaskBandMainBand() */ |
941 | | /************************************************************************/ |
942 | | |
943 | | GDALRasterBand *VRTSimpleSource::GetMaskBandMainBand() |
944 | 0 | { |
945 | 0 | if (m_poRasterBand == nullptr) |
946 | 0 | OpenSource(); |
947 | 0 | return m_poMaskBandMainBand; |
948 | 0 | } |
949 | | |
950 | | /************************************************************************/ |
951 | | /* IsSameExceptBandNumber() */ |
952 | | /************************************************************************/ |
953 | | |
954 | | bool VRTSimpleSource::IsSameExceptBandNumber( |
955 | | const VRTSimpleSource *poOtherSource) const |
956 | 0 | { |
957 | 0 | return m_dfSrcXOff == poOtherSource->m_dfSrcXOff && |
958 | 0 | m_dfSrcYOff == poOtherSource->m_dfSrcYOff && |
959 | 0 | m_dfSrcXSize == poOtherSource->m_dfSrcXSize && |
960 | 0 | m_dfSrcYSize == poOtherSource->m_dfSrcYSize && |
961 | 0 | m_dfDstXOff == poOtherSource->m_dfDstXOff && |
962 | 0 | m_dfDstYOff == poOtherSource->m_dfDstYOff && |
963 | 0 | m_dfDstXSize == poOtherSource->m_dfDstXSize && |
964 | 0 | m_dfDstYSize == poOtherSource->m_dfDstYSize && |
965 | 0 | m_osSrcDSName == poOtherSource->m_osSrcDSName; |
966 | 0 | } |
967 | | |
968 | | /************************************************************************/ |
969 | | /* SrcToDst() */ |
970 | | /* */ |
971 | | /* Note: this is a no-op if the both src and dst windows are unset */ |
972 | | /************************************************************************/ |
973 | | |
974 | | void VRTSimpleSource::SrcToDst(double dfX, double dfY, double &dfXOut, |
975 | | double &dfYOut) const |
976 | | |
977 | 0 | { |
978 | 0 | dfXOut = ((dfX - m_dfSrcXOff) / m_dfSrcXSize) * m_dfDstXSize + m_dfDstXOff; |
979 | 0 | dfYOut = ((dfY - m_dfSrcYOff) / m_dfSrcYSize) * m_dfDstYSize + m_dfDstYOff; |
980 | 0 | } |
981 | | |
982 | | /************************************************************************/ |
983 | | /* DstToSrc() */ |
984 | | /* */ |
985 | | /* Note: this is a no-op if the both src and dst windows are unset */ |
986 | | /************************************************************************/ |
987 | | |
988 | | void VRTSimpleSource::DstToSrc(double dfX, double dfY, double &dfXOut, |
989 | | double &dfYOut) const |
990 | | |
991 | 0 | { |
992 | 0 | dfXOut = ((dfX - m_dfDstXOff) / m_dfDstXSize) * m_dfSrcXSize + m_dfSrcXOff; |
993 | 0 | dfYOut = ((dfY - m_dfDstYOff) / m_dfDstYSize) * m_dfSrcYSize + m_dfSrcYOff; |
994 | 0 | } |
995 | | |
996 | | /************************************************************************/ |
997 | | /* GetSrcDstWindow() */ |
998 | | /************************************************************************/ |
999 | | |
1000 | | int VRTSimpleSource::GetSrcDstWindow( |
1001 | | double dfXOff, double dfYOff, double dfXSize, double dfYSize, int nBufXSize, |
1002 | | int nBufYSize, double *pdfReqXOff, double *pdfReqYOff, double *pdfReqXSize, |
1003 | | double *pdfReqYSize, int *pnReqXOff, int *pnReqYOff, int *pnReqXSize, |
1004 | | int *pnReqYSize, int *pnOutXOff, int *pnOutYOff, int *pnOutXSize, |
1005 | | int *pnOutYSize, bool &bErrorOut) |
1006 | | |
1007 | 0 | { |
1008 | 0 | return GetSrcDstWindow( |
1009 | 0 | dfXOff, dfYOff, dfXSize, dfYSize, nBufXSize, nBufYSize, |
1010 | 0 | GRIORA_Bilinear, // to stick with legacy behavior |
1011 | 0 | pdfReqXOff, pdfReqYOff, pdfReqXSize, pdfReqYSize, pnReqXOff, pnReqYOff, |
1012 | 0 | pnReqXSize, pnReqYSize, pnOutXOff, pnOutYOff, pnOutXSize, pnOutYSize, |
1013 | 0 | bErrorOut); |
1014 | 0 | } |
1015 | | |
1016 | | int VRTSimpleSource::GetSrcDstWindow( |
1017 | | double dfXOff, double dfYOff, double dfXSize, double dfYSize, int nBufXSize, |
1018 | | int nBufYSize, GDALRIOResampleAlg eResampleAlg, double *pdfReqXOff, |
1019 | | double *pdfReqYOff, double *pdfReqXSize, double *pdfReqYSize, |
1020 | | int *pnReqXOff, int *pnReqYOff, int *pnReqXSize, int *pnReqYSize, |
1021 | | int *pnOutXOff, int *pnOutYOff, int *pnOutXSize, int *pnOutYSize, |
1022 | | bool &bErrorOut) |
1023 | | |
1024 | 0 | { |
1025 | 0 | bErrorOut = false; |
1026 | |
|
1027 | 0 | if (m_dfSrcXSize == 0.0 || m_dfSrcYSize == 0.0 || m_dfDstXSize == 0.0 || |
1028 | 0 | m_dfDstYSize == 0.0) |
1029 | 0 | { |
1030 | 0 | return FALSE; |
1031 | 0 | } |
1032 | | |
1033 | 0 | const bool bDstWinSet = IsDstWinSet(); |
1034 | |
|
1035 | 0 | #ifdef DEBUG |
1036 | 0 | const bool bSrcWinSet = IsSrcWinSet(); |
1037 | |
|
1038 | 0 | if (bSrcWinSet != bDstWinSet) |
1039 | 0 | { |
1040 | 0 | return FALSE; |
1041 | 0 | } |
1042 | 0 | #endif |
1043 | | |
1044 | | /* -------------------------------------------------------------------- */ |
1045 | | /* If the input window completely misses the portion of the */ |
1046 | | /* virtual dataset provided by this source we have nothing to do. */ |
1047 | | /* -------------------------------------------------------------------- */ |
1048 | 0 | if (bDstWinSet) |
1049 | 0 | { |
1050 | 0 | if (dfXOff >= m_dfDstXOff + m_dfDstXSize || |
1051 | 0 | dfYOff >= m_dfDstYOff + m_dfDstYSize || |
1052 | 0 | dfXOff + dfXSize <= m_dfDstXOff || dfYOff + dfYSize <= m_dfDstYOff) |
1053 | 0 | return FALSE; |
1054 | 0 | } |
1055 | | |
1056 | | /* -------------------------------------------------------------------- */ |
1057 | | /* This request window corresponds to the whole output buffer. */ |
1058 | | /* -------------------------------------------------------------------- */ |
1059 | 0 | *pnOutXOff = 0; |
1060 | 0 | *pnOutYOff = 0; |
1061 | 0 | *pnOutXSize = nBufXSize; |
1062 | 0 | *pnOutYSize = nBufYSize; |
1063 | | |
1064 | | /* -------------------------------------------------------------------- */ |
1065 | | /* If the input window extents outside the portion of the on */ |
1066 | | /* the virtual file that this source can set, then clip down */ |
1067 | | /* the requested window. */ |
1068 | | /* -------------------------------------------------------------------- */ |
1069 | 0 | bool bModifiedX = false; |
1070 | 0 | bool bModifiedY = false; |
1071 | 0 | double dfRXOff = dfXOff; |
1072 | 0 | double dfRYOff = dfYOff; |
1073 | 0 | double dfRXSize = dfXSize; |
1074 | 0 | double dfRYSize = dfYSize; |
1075 | |
|
1076 | 0 | if (bDstWinSet) |
1077 | 0 | { |
1078 | 0 | if (dfRXOff < m_dfDstXOff) |
1079 | 0 | { |
1080 | 0 | dfRXSize = dfRXSize + dfRXOff - m_dfDstXOff; |
1081 | 0 | dfRXOff = m_dfDstXOff; |
1082 | 0 | bModifiedX = true; |
1083 | 0 | } |
1084 | |
|
1085 | 0 | if (dfRYOff < m_dfDstYOff) |
1086 | 0 | { |
1087 | 0 | dfRYSize = dfRYSize + dfRYOff - m_dfDstYOff; |
1088 | 0 | dfRYOff = m_dfDstYOff; |
1089 | 0 | bModifiedY = true; |
1090 | 0 | } |
1091 | |
|
1092 | 0 | if (dfRXOff + dfRXSize > m_dfDstXOff + m_dfDstXSize) |
1093 | 0 | { |
1094 | 0 | dfRXSize = m_dfDstXOff + m_dfDstXSize - dfRXOff; |
1095 | 0 | bModifiedX = true; |
1096 | 0 | } |
1097 | |
|
1098 | 0 | if (dfRYOff + dfRYSize > m_dfDstYOff + m_dfDstYSize) |
1099 | 0 | { |
1100 | 0 | dfRYSize = m_dfDstYOff + m_dfDstYSize - dfRYOff; |
1101 | 0 | bModifiedY = true; |
1102 | 0 | } |
1103 | 0 | } |
1104 | | |
1105 | | /* -------------------------------------------------------------------- */ |
1106 | | /* Translate requested region in virtual file into the source */ |
1107 | | /* band coordinates. */ |
1108 | | /* -------------------------------------------------------------------- */ |
1109 | 0 | const double dfScaleX = m_dfSrcXSize / m_dfDstXSize; |
1110 | 0 | const double dfScaleY = m_dfSrcYSize / m_dfDstYSize; |
1111 | |
|
1112 | 0 | *pdfReqXOff = (dfRXOff - m_dfDstXOff) * dfScaleX + m_dfSrcXOff; |
1113 | 0 | *pdfReqYOff = (dfRYOff - m_dfDstYOff) * dfScaleY + m_dfSrcYOff; |
1114 | 0 | *pdfReqXSize = dfRXSize * dfScaleX; |
1115 | 0 | *pdfReqYSize = dfRYSize * dfScaleY; |
1116 | |
|
1117 | 0 | if (!std::isfinite(*pdfReqXOff) || !std::isfinite(*pdfReqYOff) || |
1118 | 0 | !std::isfinite(*pdfReqXSize) || !std::isfinite(*pdfReqYSize) || |
1119 | 0 | *pdfReqXOff > INT_MAX || *pdfReqYOff > INT_MAX || *pdfReqXSize < 0 || |
1120 | 0 | *pdfReqYSize < 0) |
1121 | 0 | { |
1122 | 0 | return FALSE; |
1123 | 0 | } |
1124 | | |
1125 | | /* -------------------------------------------------------------------- */ |
1126 | | /* Clamp within the bounds of the available source data. */ |
1127 | | /* -------------------------------------------------------------------- */ |
1128 | 0 | if (*pdfReqXOff < 0) |
1129 | 0 | { |
1130 | 0 | *pdfReqXSize += *pdfReqXOff; |
1131 | 0 | *pdfReqXOff = 0; |
1132 | 0 | bModifiedX = true; |
1133 | 0 | } |
1134 | 0 | if (*pdfReqYOff < 0) |
1135 | 0 | { |
1136 | 0 | *pdfReqYSize += *pdfReqYOff; |
1137 | 0 | *pdfReqYOff = 0; |
1138 | 0 | bModifiedY = true; |
1139 | 0 | } |
1140 | |
|
1141 | 0 | constexpr double EPSILON = 1e-10; |
1142 | 0 | if (eResampleAlg == GRIORA_NearestNeighbour && |
1143 | 0 | (std::fabs(m_dfSrcXOff - std::round(m_dfSrcXOff)) > EPSILON || |
1144 | 0 | std::fabs(m_dfSrcYOff - std::round(m_dfSrcYOff)) > EPSILON || |
1145 | 0 | std::fabs(m_dfDstXOff - std::round(m_dfDstXOff)) > EPSILON || |
1146 | 0 | std::fabs(m_dfDstYOff - std::round(m_dfDstYOff)) > EPSILON)) |
1147 | 0 | { |
1148 | | // Align the behavior with https://github.com/OSGeo/gdal/blob/0e5bb914b80d049198d9a85e04b22c9b0590cc36/gcore/rasterio.cpp#L799 |
1149 | | // in the way we round coordinates |
1150 | | // Add small epsilon to avoid some numeric precision issues. |
1151 | | // Covered by test_vrt_read_multithreaded_non_integer_coordinates_nearest test |
1152 | 0 | *pnReqXOff = static_cast<int>(*pdfReqXOff + 0.5 + EPSILON); |
1153 | 0 | *pnReqYOff = static_cast<int>(*pdfReqYOff + 0.5 + EPSILON); |
1154 | 0 | } |
1155 | 0 | else |
1156 | 0 | { |
1157 | 0 | *pnReqXOff = static_cast<int>(*pdfReqXOff); |
1158 | 0 | *pnReqYOff = static_cast<int>(*pdfReqYOff); |
1159 | 0 | } |
1160 | |
|
1161 | 0 | constexpr double EPS = 1e-3; |
1162 | 0 | constexpr double ONE_MINUS_EPS = 1.0 - EPS; |
1163 | 0 | if (*pdfReqXOff - *pnReqXOff > ONE_MINUS_EPS) |
1164 | 0 | { |
1165 | 0 | (*pnReqXOff)++; |
1166 | 0 | *pdfReqXOff = *pnReqXOff; |
1167 | 0 | } |
1168 | 0 | if (*pdfReqYOff - *pnReqYOff > ONE_MINUS_EPS) |
1169 | 0 | { |
1170 | 0 | (*pnReqYOff)++; |
1171 | 0 | *pdfReqYOff = *pnReqYOff; |
1172 | 0 | } |
1173 | |
|
1174 | 0 | if (*pdfReqXSize > INT_MAX) |
1175 | 0 | *pnReqXSize = INT_MAX; |
1176 | 0 | else |
1177 | 0 | *pnReqXSize = static_cast<int>(floor(*pdfReqXSize + 0.5)); |
1178 | |
|
1179 | 0 | if (*pdfReqYSize > INT_MAX) |
1180 | 0 | *pnReqYSize = INT_MAX; |
1181 | 0 | else |
1182 | 0 | *pnReqYSize = static_cast<int>(floor(*pdfReqYSize + 0.5)); |
1183 | | |
1184 | | /* -------------------------------------------------------------------- */ |
1185 | | /* Clamp within the bounds of the available source data. */ |
1186 | | /* -------------------------------------------------------------------- */ |
1187 | |
|
1188 | 0 | if (*pnReqXSize == 0) |
1189 | 0 | *pnReqXSize = 1; |
1190 | 0 | if (*pnReqYSize == 0) |
1191 | 0 | *pnReqYSize = 1; |
1192 | |
|
1193 | 0 | auto l_band = GetRasterBand(); |
1194 | 0 | if (!l_band) |
1195 | 0 | { |
1196 | 0 | bErrorOut = true; |
1197 | 0 | return FALSE; |
1198 | 0 | } |
1199 | 0 | if (*pnReqXSize > INT_MAX - *pnReqXOff || |
1200 | 0 | *pnReqXOff + *pnReqXSize > l_band->GetXSize()) |
1201 | 0 | { |
1202 | 0 | *pnReqXSize = l_band->GetXSize() - *pnReqXOff; |
1203 | 0 | bModifiedX = true; |
1204 | 0 | } |
1205 | 0 | if (*pdfReqXOff + *pdfReqXSize > l_band->GetXSize()) |
1206 | 0 | { |
1207 | 0 | *pdfReqXSize = l_band->GetXSize() - *pdfReqXOff; |
1208 | 0 | bModifiedX = true; |
1209 | 0 | } |
1210 | |
|
1211 | 0 | if (*pnReqYSize > INT_MAX - *pnReqYOff || |
1212 | 0 | *pnReqYOff + *pnReqYSize > l_band->GetYSize()) |
1213 | 0 | { |
1214 | 0 | *pnReqYSize = l_band->GetYSize() - *pnReqYOff; |
1215 | 0 | bModifiedY = true; |
1216 | 0 | } |
1217 | 0 | if (*pdfReqYOff + *pdfReqYSize > l_band->GetYSize()) |
1218 | 0 | { |
1219 | 0 | *pdfReqYSize = l_band->GetYSize() - *pdfReqYOff; |
1220 | 0 | bModifiedY = true; |
1221 | 0 | } |
1222 | | |
1223 | | /* -------------------------------------------------------------------- */ |
1224 | | /* Don't do anything if the requesting region is completely off */ |
1225 | | /* the source image. */ |
1226 | | /* -------------------------------------------------------------------- */ |
1227 | 0 | if (*pnReqXOff >= l_band->GetXSize() || *pnReqYOff >= l_band->GetYSize() || |
1228 | 0 | *pnReqXSize <= 0 || *pnReqYSize <= 0) |
1229 | 0 | { |
1230 | 0 | return FALSE; |
1231 | 0 | } |
1232 | | |
1233 | | /* -------------------------------------------------------------------- */ |
1234 | | /* If we haven't had to modify the source rectangle, then the */ |
1235 | | /* destination rectangle must be the whole region. */ |
1236 | | /* -------------------------------------------------------------------- */ |
1237 | 0 | if (bModifiedX || bModifiedY) |
1238 | 0 | { |
1239 | | /* -------------------------------------------------------------------- |
1240 | | */ |
1241 | | /* Now transform this possibly reduced request back into the */ |
1242 | | /* destination buffer coordinates in case the output region is */ |
1243 | | /* less than the whole buffer. */ |
1244 | | /* -------------------------------------------------------------------- |
1245 | | */ |
1246 | 0 | double dfDstULX = 0.0; |
1247 | 0 | double dfDstULY = 0.0; |
1248 | 0 | double dfDstLRX = 0.0; |
1249 | 0 | double dfDstLRY = 0.0; |
1250 | |
|
1251 | 0 | SrcToDst(*pdfReqXOff, *pdfReqYOff, dfDstULX, dfDstULY); |
1252 | 0 | SrcToDst(*pdfReqXOff + *pdfReqXSize, *pdfReqYOff + *pdfReqYSize, |
1253 | 0 | dfDstLRX, dfDstLRY); |
1254 | | #if DEBUG_VERBOSE |
1255 | | CPLDebug("VRT", "dfDstULX=%g dfDstULY=%g dfDstLRX=%g dfDstLRY=%g", |
1256 | | dfDstULX, dfDstULY, dfDstLRX, dfDstLRY); |
1257 | | #endif |
1258 | |
|
1259 | 0 | if (bModifiedX) |
1260 | 0 | { |
1261 | 0 | const double dfScaleWinToBufX = nBufXSize / dfXSize; |
1262 | |
|
1263 | 0 | const double dfOutXOff = (dfDstULX - dfXOff) * dfScaleWinToBufX; |
1264 | 0 | if (dfOutXOff <= 0) |
1265 | 0 | *pnOutXOff = 0; |
1266 | 0 | else if (dfOutXOff > INT_MAX) |
1267 | 0 | *pnOutXOff = INT_MAX; |
1268 | 0 | else |
1269 | 0 | *pnOutXOff = static_cast<int>(dfOutXOff + EPS); |
1270 | | |
1271 | | // Apply correction on floating-point source window |
1272 | 0 | { |
1273 | 0 | double dfDstDeltaX = |
1274 | 0 | (dfOutXOff - *pnOutXOff) / dfScaleWinToBufX; |
1275 | 0 | double dfSrcDeltaX = dfDstDeltaX / m_dfDstXSize * m_dfSrcXSize; |
1276 | 0 | *pdfReqXOff -= dfSrcDeltaX; |
1277 | 0 | *pdfReqXSize = std::min(*pdfReqXSize + dfSrcDeltaX, |
1278 | 0 | static_cast<double>(INT_MAX)); |
1279 | 0 | } |
1280 | |
|
1281 | 0 | double dfOutRightXOff = (dfDstLRX - dfXOff) * dfScaleWinToBufX; |
1282 | 0 | if (dfOutRightXOff < dfOutXOff) |
1283 | 0 | return FALSE; |
1284 | 0 | if (dfOutRightXOff > INT_MAX) |
1285 | 0 | dfOutRightXOff = INT_MAX; |
1286 | 0 | const int nOutRightXOff = |
1287 | 0 | static_cast<int>(ceil(dfOutRightXOff - EPS)); |
1288 | 0 | *pnOutXSize = nOutRightXOff - *pnOutXOff; |
1289 | |
|
1290 | 0 | if (*pnOutXSize > INT_MAX - *pnOutXOff || |
1291 | 0 | *pnOutXOff + *pnOutXSize > nBufXSize) |
1292 | 0 | *pnOutXSize = nBufXSize - *pnOutXOff; |
1293 | | |
1294 | | // Apply correction on floating-point source window |
1295 | 0 | { |
1296 | 0 | double dfDstDeltaX = |
1297 | 0 | (nOutRightXOff - dfOutRightXOff) / dfScaleWinToBufX; |
1298 | 0 | double dfSrcDeltaX = dfDstDeltaX / m_dfDstXSize * m_dfSrcXSize; |
1299 | 0 | *pdfReqXSize = std::min(*pdfReqXSize + dfSrcDeltaX, |
1300 | 0 | static_cast<double>(INT_MAX)); |
1301 | 0 | } |
1302 | 0 | } |
1303 | | |
1304 | 0 | if (bModifiedY) |
1305 | 0 | { |
1306 | 0 | const double dfScaleWinToBufY = nBufYSize / dfYSize; |
1307 | |
|
1308 | 0 | const double dfOutYOff = (dfDstULY - dfYOff) * dfScaleWinToBufY; |
1309 | 0 | if (dfOutYOff <= 0) |
1310 | 0 | *pnOutYOff = 0; |
1311 | 0 | else if (dfOutYOff > INT_MAX) |
1312 | 0 | *pnOutYOff = INT_MAX; |
1313 | 0 | else |
1314 | 0 | *pnOutYOff = static_cast<int>(dfOutYOff + EPS); |
1315 | | |
1316 | | // Apply correction on floating-point source window |
1317 | 0 | { |
1318 | 0 | double dfDstDeltaY = |
1319 | 0 | (dfOutYOff - *pnOutYOff) / dfScaleWinToBufY; |
1320 | 0 | double dfSrcDeltaY = dfDstDeltaY / m_dfDstYSize * m_dfSrcYSize; |
1321 | 0 | *pdfReqYOff -= dfSrcDeltaY; |
1322 | 0 | *pdfReqYSize = std::min(*pdfReqYSize + dfSrcDeltaY, |
1323 | 0 | static_cast<double>(INT_MAX)); |
1324 | 0 | } |
1325 | |
|
1326 | 0 | double dfOutTopYOff = (dfDstLRY - dfYOff) * dfScaleWinToBufY; |
1327 | 0 | if (dfOutTopYOff < dfOutYOff) |
1328 | 0 | return FALSE; |
1329 | 0 | if (dfOutTopYOff > INT_MAX) |
1330 | 0 | dfOutTopYOff = INT_MAX; |
1331 | 0 | const int nOutTopYOff = static_cast<int>(ceil(dfOutTopYOff - EPS)); |
1332 | 0 | *pnOutYSize = nOutTopYOff - *pnOutYOff; |
1333 | |
|
1334 | 0 | if (*pnOutYSize > INT_MAX - *pnOutYOff || |
1335 | 0 | *pnOutYOff + *pnOutYSize > nBufYSize) |
1336 | 0 | *pnOutYSize = nBufYSize - *pnOutYOff; |
1337 | | |
1338 | | // Apply correction on floating-point source window |
1339 | 0 | { |
1340 | 0 | double dfDstDeltaY = |
1341 | 0 | (nOutTopYOff - dfOutTopYOff) / dfScaleWinToBufY; |
1342 | 0 | double dfSrcDeltaY = dfDstDeltaY / m_dfDstYSize * m_dfSrcYSize; |
1343 | 0 | *pdfReqYSize = std::min(*pdfReqYSize + dfSrcDeltaY, |
1344 | 0 | static_cast<double>(INT_MAX)); |
1345 | 0 | } |
1346 | 0 | } |
1347 | | |
1348 | 0 | if (*pnOutXSize < 1 || *pnOutYSize < 1) |
1349 | 0 | return FALSE; |
1350 | 0 | } |
1351 | | |
1352 | 0 | *pdfReqXOff = RoundIfCloseToInt(*pdfReqXOff); |
1353 | 0 | *pdfReqYOff = RoundIfCloseToInt(*pdfReqYOff); |
1354 | 0 | *pdfReqXSize = RoundIfCloseToInt(*pdfReqXSize); |
1355 | 0 | *pdfReqYSize = RoundIfCloseToInt(*pdfReqYSize); |
1356 | |
|
1357 | 0 | return TRUE; |
1358 | 0 | } |
1359 | | |
1360 | | /************************************************************************/ |
1361 | | /* NeedMaxValAdjustment() */ |
1362 | | /************************************************************************/ |
1363 | | |
1364 | | int VRTSimpleSource::NeedMaxValAdjustment() const |
1365 | 0 | { |
1366 | 0 | if (!m_nMaxValue) |
1367 | 0 | return FALSE; |
1368 | | |
1369 | 0 | auto l_band = GetRasterBand(); |
1370 | 0 | if (!l_band) |
1371 | 0 | return FALSE; |
1372 | 0 | const char *pszNBITS = |
1373 | 0 | l_band->GetMetadataItem(GDALMD_NBITS, GDAL_MDD_IMAGE_STRUCTURE); |
1374 | 0 | const int nBits = (pszNBITS) ? atoi(pszNBITS) : 0; |
1375 | 0 | if (nBits >= 1 && nBits <= 31) |
1376 | 0 | { |
1377 | 0 | const int nBandMaxValue = static_cast<int>((1U << nBits) - 1); |
1378 | 0 | return nBandMaxValue > m_nMaxValue; |
1379 | 0 | } |
1380 | 0 | return TRUE; |
1381 | 0 | } |
1382 | | |
1383 | | /************************************************************************/ |
1384 | | /* CopyWordIn() */ |
1385 | | /************************************************************************/ |
1386 | | |
1387 | | template <class DstType> |
1388 | | static void CopyWordIn(const void *pSrcVal, GDALDataType eSrcType, |
1389 | | DstType *pDstVal, GDALDataType eDstType) |
1390 | 0 | { |
1391 | 0 | switch (eSrcType) |
1392 | 0 | { |
1393 | 0 | case GDT_UInt8: |
1394 | 0 | GDALCopyWord(*static_cast<const uint8_t *>(pSrcVal), *pDstVal); |
1395 | 0 | break; |
1396 | 0 | case GDT_Int8: |
1397 | 0 | GDALCopyWord(*static_cast<const int8_t *>(pSrcVal), *pDstVal); |
1398 | 0 | break; |
1399 | 0 | case GDT_UInt16: |
1400 | 0 | GDALCopyWord(*static_cast<const uint16_t *>(pSrcVal), *pDstVal); |
1401 | 0 | break; |
1402 | 0 | case GDT_Int16: |
1403 | 0 | GDALCopyWord(*static_cast<const int16_t *>(pSrcVal), *pDstVal); |
1404 | 0 | break; |
1405 | 0 | case GDT_UInt32: |
1406 | 0 | GDALCopyWord(*static_cast<const uint32_t *>(pSrcVal), *pDstVal); |
1407 | 0 | break; |
1408 | 0 | case GDT_Int32: |
1409 | 0 | GDALCopyWord(*static_cast<const int32_t *>(pSrcVal), *pDstVal); |
1410 | 0 | break; |
1411 | 0 | case GDT_UInt64: |
1412 | 0 | GDALCopyWord(*static_cast<const uint64_t *>(pSrcVal), *pDstVal); |
1413 | 0 | break; |
1414 | 0 | case GDT_Int64: |
1415 | 0 | GDALCopyWord(*static_cast<const int64_t *>(pSrcVal), *pDstVal); |
1416 | 0 | break; |
1417 | 0 | case GDT_Float16: |
1418 | 0 | GDALCopyWord(*static_cast<const GFloat16 *>(pSrcVal), *pDstVal); |
1419 | 0 | break; |
1420 | 0 | case GDT_Float32: |
1421 | 0 | GDALCopyWord(*static_cast<const float *>(pSrcVal), *pDstVal); |
1422 | 0 | break; |
1423 | 0 | case GDT_Float64: |
1424 | 0 | GDALCopyWord(*static_cast<const double *>(pSrcVal), *pDstVal); |
1425 | 0 | break; |
1426 | 0 | case GDT_CInt16: |
1427 | 0 | case GDT_CInt32: |
1428 | 0 | case GDT_CFloat16: |
1429 | 0 | case GDT_CFloat32: |
1430 | 0 | case GDT_CFloat64: |
1431 | 0 | GDALCopyWords(pSrcVal, eSrcType, 0, pDstVal, eDstType, 0, 1); |
1432 | 0 | break; |
1433 | 0 | case GDT_Unknown: |
1434 | 0 | case GDT_TypeCount: |
1435 | 0 | CPLAssert(false); |
1436 | 0 | } |
1437 | 0 | } |
1438 | | |
1439 | | /************************************************************************/ |
1440 | | /* CopyWordOut() */ |
1441 | | /************************************************************************/ |
1442 | | |
1443 | | template <class SrcType> |
1444 | | static void CopyWordOut(const SrcType *pSrcVal, GDALDataType eSrcType, |
1445 | | void *pDstVal, GDALDataType eDstType) |
1446 | 0 | { |
1447 | 0 | switch (eDstType) |
1448 | 0 | { |
1449 | 0 | case GDT_UInt8: |
1450 | 0 | GDALCopyWord(*pSrcVal, *static_cast<uint8_t *>(pDstVal)); |
1451 | 0 | break; |
1452 | 0 | case GDT_Int8: |
1453 | 0 | GDALCopyWord(*pSrcVal, *static_cast<int8_t *>(pDstVal)); |
1454 | 0 | break; |
1455 | 0 | case GDT_UInt16: |
1456 | 0 | GDALCopyWord(*pSrcVal, *static_cast<uint16_t *>(pDstVal)); |
1457 | 0 | break; |
1458 | 0 | case GDT_Int16: |
1459 | 0 | GDALCopyWord(*pSrcVal, *static_cast<int16_t *>(pDstVal)); |
1460 | 0 | break; |
1461 | 0 | case GDT_UInt32: |
1462 | 0 | GDALCopyWord(*pSrcVal, *static_cast<uint32_t *>(pDstVal)); |
1463 | 0 | break; |
1464 | 0 | case GDT_Int32: |
1465 | 0 | GDALCopyWord(*pSrcVal, *static_cast<int32_t *>(pDstVal)); |
1466 | 0 | break; |
1467 | 0 | case GDT_UInt64: |
1468 | 0 | GDALCopyWord(*pSrcVal, *static_cast<uint64_t *>(pDstVal)); |
1469 | 0 | break; |
1470 | 0 | case GDT_Int64: |
1471 | 0 | GDALCopyWord(*pSrcVal, *static_cast<int64_t *>(pDstVal)); |
1472 | 0 | break; |
1473 | 0 | case GDT_Float16: |
1474 | 0 | GDALCopyWord(*pSrcVal, *static_cast<GFloat16 *>(pDstVal)); |
1475 | 0 | break; |
1476 | 0 | case GDT_Float32: |
1477 | 0 | GDALCopyWord(*pSrcVal, *static_cast<float *>(pDstVal)); |
1478 | 0 | break; |
1479 | 0 | case GDT_Float64: |
1480 | 0 | GDALCopyWord(*pSrcVal, *static_cast<double *>(pDstVal)); |
1481 | 0 | break; |
1482 | 0 | case GDT_CInt16: |
1483 | 0 | case GDT_CInt32: |
1484 | 0 | case GDT_CFloat16: |
1485 | 0 | case GDT_CFloat32: |
1486 | 0 | case GDT_CFloat64: |
1487 | 0 | GDALCopyWords(pSrcVal, eSrcType, 0, pDstVal, eDstType, 0, 1); |
1488 | 0 | break; |
1489 | 0 | case GDT_Unknown: |
1490 | 0 | case GDT_TypeCount: |
1491 | 0 | CPLAssert(false); |
1492 | 0 | } |
1493 | 0 | } Unexecuted instantiation: vrtsources.cpp:void CopyWordOut<int>(int const*, GDALDataType, void*, GDALDataType) Unexecuted instantiation: vrtsources.cpp:void CopyWordOut<double>(double const*, GDALDataType, void*, GDALDataType) Unexecuted instantiation: vrtsources.cpp:void CopyWordOut<unsigned char>(unsigned char const*, GDALDataType, void*, GDALDataType) Unexecuted instantiation: vrtsources.cpp:void CopyWordOut<short>(short const*, GDALDataType, void*, GDALDataType) Unexecuted instantiation: vrtsources.cpp:void CopyWordOut<unsigned short>(unsigned short const*, GDALDataType, void*, GDALDataType) Unexecuted instantiation: vrtsources.cpp:void CopyWordOut<float>(float const*, GDALDataType, void*, GDALDataType) |
1494 | | |
1495 | | /************************************************************************/ |
1496 | | /* GDALClampValueToType() */ |
1497 | | /************************************************************************/ |
1498 | | |
1499 | | template <class T> |
1500 | | inline void GDALClampValueToType(T *pValue, GDALDataType eClampingType) |
1501 | 0 | { |
1502 | 0 | switch (eClampingType) |
1503 | 0 | { |
1504 | 0 | case GDT_UInt8: |
1505 | 0 | *pValue = GDALClampValueToType<T, uint8_t>(*pValue); |
1506 | 0 | break; |
1507 | 0 | case GDT_Int8: |
1508 | 0 | *pValue = GDALClampValueToType<T, int8_t>(*pValue); |
1509 | 0 | break; |
1510 | 0 | case GDT_UInt16: |
1511 | 0 | *pValue = GDALClampValueToType<T, uint16_t>(*pValue); |
1512 | 0 | break; |
1513 | 0 | case GDT_Int16: |
1514 | 0 | case GDT_CInt16: |
1515 | 0 | *pValue = GDALClampValueToType<T, int16_t>(*pValue); |
1516 | 0 | break; |
1517 | 0 | case GDT_UInt32: |
1518 | 0 | *pValue = GDALClampValueToType<T, uint32_t>(*pValue); |
1519 | 0 | break; |
1520 | 0 | case GDT_Int32: |
1521 | 0 | case GDT_CInt32: |
1522 | 0 | *pValue = GDALClampValueToType<T, int32_t>(*pValue); |
1523 | 0 | break; |
1524 | 0 | case GDT_UInt64: |
1525 | 0 | *pValue = GDALClampValueToType<T, uint64_t>(*pValue); |
1526 | 0 | break; |
1527 | 0 | case GDT_Int64: |
1528 | 0 | *pValue = GDALClampValueToType<T, int64_t>(*pValue); |
1529 | 0 | break; |
1530 | 0 | case GDT_Float16: |
1531 | 0 | case GDT_CFloat16: |
1532 | 0 | *pValue = GDALClampValueToType<T, GFloat16>(*pValue); |
1533 | 0 | break; |
1534 | 0 | case GDT_Float32: |
1535 | 0 | case GDT_CFloat32: |
1536 | 0 | *pValue = GDALClampValueToType<T, float>(*pValue); |
1537 | 0 | break; |
1538 | 0 | case GDT_Float64: |
1539 | 0 | case GDT_CFloat64: |
1540 | 0 | *pValue = GDALClampValueToType<T, double>(*pValue); |
1541 | 0 | break; |
1542 | 0 | case GDT_Unknown: |
1543 | 0 | case GDT_TypeCount: |
1544 | 0 | CPLAssert(false); |
1545 | 0 | break; |
1546 | 0 | } |
1547 | 0 | } Unexecuted instantiation: void GDALClampValueToType<unsigned char>(unsigned char*, GDALDataType) Unexecuted instantiation: void GDALClampValueToType<signed char>(signed char*, GDALDataType) Unexecuted instantiation: void GDALClampValueToType<unsigned short>(unsigned short*, GDALDataType) Unexecuted instantiation: void GDALClampValueToType<short>(short*, GDALDataType) Unexecuted instantiation: void GDALClampValueToType<unsigned int>(unsigned int*, GDALDataType) Unexecuted instantiation: void GDALClampValueToType<int>(int*, GDALDataType) Unexecuted instantiation: void GDALClampValueToType<unsigned long>(unsigned long*, GDALDataType) Unexecuted instantiation: void GDALClampValueToType<long>(long*, GDALDataType) Unexecuted instantiation: void GDALClampValueToType<cpl::Float16>(cpl::Float16*, GDALDataType) Unexecuted instantiation: void GDALClampValueToType<float>(float*, GDALDataType) Unexecuted instantiation: void GDALClampValueToType<double>(double*, GDALDataType) |
1548 | | |
1549 | | /************************************************************************/ |
1550 | | /* GDALClampValueToType() */ |
1551 | | /************************************************************************/ |
1552 | | |
1553 | | inline void GDALClampValueToType(void *pValue, GDALDataType eValueType, |
1554 | | GDALDataType eClampingType) |
1555 | 0 | { |
1556 | 0 | switch (eValueType) |
1557 | 0 | { |
1558 | 0 | case GDT_UInt8: |
1559 | 0 | GDALClampValueToType(static_cast<uint8_t *>(pValue), eClampingType); |
1560 | 0 | break; |
1561 | 0 | case GDT_Int8: |
1562 | 0 | GDALClampValueToType(static_cast<int8_t *>(pValue), eClampingType); |
1563 | 0 | break; |
1564 | 0 | case GDT_UInt16: |
1565 | 0 | GDALClampValueToType(static_cast<uint16_t *>(pValue), |
1566 | 0 | eClampingType); |
1567 | 0 | break; |
1568 | 0 | case GDT_Int16: |
1569 | 0 | GDALClampValueToType(static_cast<int16_t *>(pValue), eClampingType); |
1570 | 0 | break; |
1571 | 0 | case GDT_UInt32: |
1572 | 0 | GDALClampValueToType(static_cast<uint32_t *>(pValue), |
1573 | 0 | eClampingType); |
1574 | 0 | break; |
1575 | 0 | case GDT_Int32: |
1576 | 0 | GDALClampValueToType(static_cast<int32_t *>(pValue), eClampingType); |
1577 | 0 | break; |
1578 | 0 | case GDT_UInt64: |
1579 | 0 | GDALClampValueToType(static_cast<uint64_t *>(pValue), |
1580 | 0 | eClampingType); |
1581 | 0 | break; |
1582 | 0 | case GDT_Int64: |
1583 | 0 | GDALClampValueToType(static_cast<int64_t *>(pValue), eClampingType); |
1584 | 0 | break; |
1585 | 0 | case GDT_Float16: |
1586 | 0 | GDALClampValueToType(static_cast<GFloat16 *>(pValue), |
1587 | 0 | eClampingType); |
1588 | 0 | break; |
1589 | 0 | case GDT_Float32: |
1590 | 0 | GDALClampValueToType(static_cast<float *>(pValue), eClampingType); |
1591 | 0 | break; |
1592 | 0 | case GDT_Float64: |
1593 | 0 | GDALClampValueToType(static_cast<double *>(pValue), eClampingType); |
1594 | 0 | break; |
1595 | 0 | case GDT_CInt16: |
1596 | 0 | GDALClampValueToType(static_cast<int16_t *>(pValue) + 0, |
1597 | 0 | eClampingType); |
1598 | 0 | GDALClampValueToType(static_cast<int16_t *>(pValue) + 1, |
1599 | 0 | eClampingType); |
1600 | 0 | break; |
1601 | 0 | case GDT_CInt32: |
1602 | 0 | GDALClampValueToType(static_cast<int32_t *>(pValue) + 0, |
1603 | 0 | eClampingType); |
1604 | 0 | GDALClampValueToType(static_cast<int32_t *>(pValue) + 1, |
1605 | 0 | eClampingType); |
1606 | 0 | break; |
1607 | 0 | case GDT_CFloat16: |
1608 | 0 | GDALClampValueToType(static_cast<GFloat16 *>(pValue) + 0, |
1609 | 0 | eClampingType); |
1610 | 0 | GDALClampValueToType(static_cast<GFloat16 *>(pValue) + 1, |
1611 | 0 | eClampingType); |
1612 | 0 | break; |
1613 | 0 | case GDT_CFloat32: |
1614 | 0 | GDALClampValueToType(static_cast<float *>(pValue) + 0, |
1615 | 0 | eClampingType); |
1616 | 0 | GDALClampValueToType(static_cast<float *>(pValue) + 1, |
1617 | 0 | eClampingType); |
1618 | 0 | break; |
1619 | 0 | case GDT_CFloat64: |
1620 | 0 | GDALClampValueToType(static_cast<double *>(pValue) + 0, |
1621 | 0 | eClampingType); |
1622 | 0 | GDALClampValueToType(static_cast<double *>(pValue) + 1, |
1623 | 0 | eClampingType); |
1624 | 0 | break; |
1625 | 0 | case GDT_Unknown: |
1626 | 0 | case GDT_TypeCount: |
1627 | 0 | CPLAssert(false); |
1628 | 0 | break; |
1629 | 0 | } |
1630 | 0 | } |
1631 | | |
1632 | | /************************************************************************/ |
1633 | | /* RasterIO() */ |
1634 | | /************************************************************************/ |
1635 | | |
1636 | | CPLErr VRTSimpleSource::RasterIO(GDALDataType eVRTBandDataType, int nXOff, |
1637 | | int nYOff, int nXSize, int nYSize, void *pData, |
1638 | | int nBufXSize, int nBufYSize, |
1639 | | GDALDataType eBufType, GSpacing nPixelSpace, |
1640 | | GSpacing nLineSpace, |
1641 | | GDALRasterIOExtraArg *psExtraArgIn, |
1642 | | WorkingState & /*oWorkingState*/) |
1643 | | |
1644 | 0 | { |
1645 | 0 | GDALRasterIOExtraArg sExtraArg; |
1646 | 0 | INIT_RASTERIO_EXTRA_ARG(sExtraArg); |
1647 | 0 | GDALRasterIOExtraArg *psExtraArg = &sExtraArg; |
1648 | |
|
1649 | 0 | double dfXOff = nXOff; |
1650 | 0 | double dfYOff = nYOff; |
1651 | 0 | double dfXSize = nXSize; |
1652 | 0 | double dfYSize = nYSize; |
1653 | 0 | if (psExtraArgIn != nullptr && psExtraArgIn->bFloatingPointWindowValidity) |
1654 | 0 | { |
1655 | 0 | dfXOff = psExtraArgIn->dfXOff; |
1656 | 0 | dfYOff = psExtraArgIn->dfYOff; |
1657 | 0 | dfXSize = psExtraArgIn->dfXSize; |
1658 | 0 | dfYSize = psExtraArgIn->dfYSize; |
1659 | 0 | } |
1660 | | |
1661 | | // The window we will actually request from the source raster band. |
1662 | 0 | double dfReqXOff = 0.0; |
1663 | 0 | double dfReqYOff = 0.0; |
1664 | 0 | double dfReqXSize = 0.0; |
1665 | 0 | double dfReqYSize = 0.0; |
1666 | 0 | int nReqXOff = 0; |
1667 | 0 | int nReqYOff = 0; |
1668 | 0 | int nReqXSize = 0; |
1669 | 0 | int nReqYSize = 0; |
1670 | | |
1671 | | // The window we will actual set _within_ the pData buffer. |
1672 | 0 | int nOutXOff = 0; |
1673 | 0 | int nOutYOff = 0; |
1674 | 0 | int nOutXSize = 0; |
1675 | 0 | int nOutYSize = 0; |
1676 | |
|
1677 | 0 | if (!m_osResampling.empty()) |
1678 | 0 | { |
1679 | 0 | psExtraArg->eResampleAlg = GDALRasterIOGetResampleAlg(m_osResampling); |
1680 | 0 | } |
1681 | 0 | else if (psExtraArgIn != nullptr) |
1682 | 0 | { |
1683 | 0 | psExtraArg->eResampleAlg = psExtraArgIn->eResampleAlg; |
1684 | 0 | } |
1685 | |
|
1686 | 0 | bool bError = false; |
1687 | 0 | if (!GetSrcDstWindow(dfXOff, dfYOff, dfXSize, dfYSize, nBufXSize, nBufYSize, |
1688 | 0 | psExtraArg->eResampleAlg, &dfReqXOff, &dfReqYOff, |
1689 | 0 | &dfReqXSize, &dfReqYSize, &nReqXOff, &nReqYOff, |
1690 | 0 | &nReqXSize, &nReqYSize, &nOutXOff, &nOutYOff, |
1691 | 0 | &nOutXSize, &nOutYSize, bError)) |
1692 | 0 | { |
1693 | 0 | return bError ? CE_Failure : CE_None; |
1694 | 0 | } |
1695 | | #if DEBUG_VERBOSE |
1696 | | CPLDebug("VRT", |
1697 | | "nXOff=%d, nYOff=%d, nXSize=%d, nYSize=%d, nBufXSize=%d, " |
1698 | | "nBufYSize=%d,\n" |
1699 | | "dfReqXOff=%g, dfReqYOff=%g, dfReqXSize=%g, dfReqYSize=%g,\n" |
1700 | | "nReqXOff=%d, nReqYOff=%d, nReqXSize=%d, nReqYSize=%d,\n" |
1701 | | "nOutXOff=%d, nOutYOff=%d, nOutXSize=%d, nOutYSize=%d", |
1702 | | nXOff, nYOff, nXSize, nYSize, nBufXSize, nBufYSize, dfReqXOff, |
1703 | | dfReqYOff, dfReqXSize, dfReqYSize, nReqXOff, nReqYOff, nReqXSize, |
1704 | | nReqYSize, nOutXOff, nOutYOff, nOutXSize, nOutYSize); |
1705 | | #endif |
1706 | | |
1707 | | /* -------------------------------------------------------------------- */ |
1708 | | /* Actually perform the IO request. */ |
1709 | | /* -------------------------------------------------------------------- */ |
1710 | 0 | psExtraArg->bFloatingPointWindowValidity = TRUE; |
1711 | 0 | psExtraArg->dfXOff = dfReqXOff; |
1712 | 0 | psExtraArg->dfYOff = dfReqYOff; |
1713 | 0 | psExtraArg->dfXSize = dfReqXSize; |
1714 | 0 | psExtraArg->dfYSize = dfReqYSize; |
1715 | 0 | if (psExtraArgIn) |
1716 | 0 | { |
1717 | 0 | psExtraArg->pfnProgress = psExtraArgIn->pfnProgress; |
1718 | 0 | psExtraArg->pProgressData = psExtraArgIn->pProgressData; |
1719 | 0 | if (psExtraArgIn->nVersion >= 2) |
1720 | 0 | { |
1721 | 0 | psExtraArg->bUseOnlyThisScale = psExtraArgIn->bUseOnlyThisScale; |
1722 | 0 | } |
1723 | 0 | psExtraArg->bOperateInBufType = |
1724 | 0 | GDAL_GET_OPERATE_IN_BUF_TYPE(*psExtraArgIn); |
1725 | 0 | } |
1726 | |
|
1727 | 0 | GByte *pabyOut = static_cast<unsigned char *>(pData) + |
1728 | 0 | nOutXOff * nPixelSpace + |
1729 | 0 | static_cast<GPtrDiff_t>(nOutYOff) * nLineSpace; |
1730 | |
|
1731 | 0 | auto l_band = GetRasterBand(); |
1732 | 0 | if (!l_band) |
1733 | 0 | return CE_Failure; |
1734 | | |
1735 | 0 | CPLErr eErr = CE_Failure; |
1736 | 0 | if (GDALDataTypeIsConversionLossy(l_band->GetRasterDataType(), |
1737 | 0 | eVRTBandDataType)) |
1738 | 0 | { |
1739 | 0 | if (!psExtraArg->bOperateInBufType) |
1740 | 0 | { |
1741 | 0 | const int nBandDTSize = GDALGetDataTypeSizeBytes(eVRTBandDataType); |
1742 | 0 | void *pTemp = |
1743 | 0 | VSI_MALLOC3_VERBOSE(nOutXSize, nOutYSize, nBandDTSize); |
1744 | 0 | if (pTemp) |
1745 | 0 | { |
1746 | 0 | eErr = l_band->RasterIO(GF_Read, nReqXOff, nReqYOff, nReqXSize, |
1747 | 0 | nReqYSize, pTemp, nOutXSize, nOutYSize, |
1748 | 0 | eVRTBandDataType, 0, 0, psExtraArg); |
1749 | 0 | if (eErr == CE_None) |
1750 | 0 | { |
1751 | 0 | GByte *pabyTemp = static_cast<GByte *>(pTemp); |
1752 | 0 | for (int iY = 0; iY < nOutYSize; iY++) |
1753 | 0 | { |
1754 | 0 | GDALCopyWords( |
1755 | 0 | pabyTemp + static_cast<size_t>(iY) * nBandDTSize * |
1756 | 0 | nOutXSize, |
1757 | 0 | eVRTBandDataType, nBandDTSize, |
1758 | 0 | pabyOut + static_cast<GPtrDiff_t>(iY * nLineSpace), |
1759 | 0 | eBufType, static_cast<int>(nPixelSpace), nOutXSize); |
1760 | 0 | } |
1761 | 0 | } |
1762 | 0 | VSIFree(pTemp); |
1763 | 0 | } |
1764 | 0 | } |
1765 | 0 | else |
1766 | 0 | { |
1767 | 0 | eErr = |
1768 | 0 | l_band->RasterIO(GF_Read, nReqXOff, nReqYOff, nReqXSize, |
1769 | 0 | nReqYSize, pabyOut, nOutXSize, nOutYSize, |
1770 | 0 | eBufType, nPixelSpace, nLineSpace, psExtraArg); |
1771 | 0 | if (eErr == CE_None) |
1772 | 0 | { |
1773 | 0 | for (int j = 0; j < nOutYSize; j++) |
1774 | 0 | { |
1775 | 0 | for (int i = 0; i < nOutXSize; i++) |
1776 | 0 | { |
1777 | 0 | void *pDst = pabyOut + j * nLineSpace + i * nPixelSpace; |
1778 | 0 | GDALClampValueToType(pDst, eBufType, eVRTBandDataType); |
1779 | 0 | } |
1780 | 0 | } |
1781 | 0 | } |
1782 | 0 | } |
1783 | 0 | } |
1784 | 0 | else |
1785 | 0 | { |
1786 | 0 | eErr = l_band->RasterIO(GF_Read, nReqXOff, nReqYOff, nReqXSize, |
1787 | 0 | nReqYSize, pabyOut, nOutXSize, nOutYSize, |
1788 | 0 | eBufType, nPixelSpace, nLineSpace, psExtraArg); |
1789 | 0 | } |
1790 | |
|
1791 | 0 | if (NeedMaxValAdjustment()) |
1792 | 0 | { |
1793 | 0 | for (int j = 0; j < nOutYSize; j++) |
1794 | 0 | { |
1795 | 0 | for (int i = 0; i < nOutXSize; i++) |
1796 | 0 | { |
1797 | 0 | GByte *pDst = pabyOut + j * nLineSpace + i * nPixelSpace; |
1798 | 0 | int nVal = 0; |
1799 | 0 | CopyWordIn(pDst, eBufType, &nVal, GDT_Int32); |
1800 | 0 | if (nVal > m_nMaxValue) |
1801 | 0 | nVal = m_nMaxValue; |
1802 | 0 | CopyWordOut(&nVal, GDT_Int32, pDst, eBufType); |
1803 | 0 | } |
1804 | 0 | } |
1805 | 0 | } |
1806 | |
|
1807 | 0 | if (psExtraArg->pfnProgress) |
1808 | 0 | psExtraArg->pfnProgress(1.0, "", psExtraArg->pProgressData); |
1809 | |
|
1810 | 0 | return eErr; |
1811 | 0 | } |
1812 | | |
1813 | | /************************************************************************/ |
1814 | | /* GetMinimum() */ |
1815 | | /************************************************************************/ |
1816 | | |
1817 | | double VRTSimpleSource::GetMinimum(int nXSize, int nYSize, int *pbSuccess) |
1818 | 0 | { |
1819 | | // The window we will actually request from the source raster band. |
1820 | 0 | double dfReqXOff = 0.0; |
1821 | 0 | double dfReqYOff = 0.0; |
1822 | 0 | double dfReqXSize = 0.0; |
1823 | 0 | double dfReqYSize = 0.0; |
1824 | 0 | int nReqXOff = 0; |
1825 | 0 | int nReqYOff = 0; |
1826 | 0 | int nReqXSize = 0; |
1827 | 0 | int nReqYSize = 0; |
1828 | | |
1829 | | // The window we will actual set _within_ the pData buffer. |
1830 | 0 | int nOutXOff = 0; |
1831 | 0 | int nOutYOff = 0; |
1832 | 0 | int nOutXSize = 0; |
1833 | 0 | int nOutYSize = 0; |
1834 | |
|
1835 | 0 | bool bError = false; |
1836 | 0 | auto l_band = GetRasterBand(); |
1837 | 0 | if (!l_band || |
1838 | 0 | !GetSrcDstWindow(0, 0, nXSize, nYSize, nXSize, nYSize, |
1839 | 0 | GRIORA_NearestNeighbour, &dfReqXOff, &dfReqYOff, |
1840 | 0 | &dfReqXSize, &dfReqYSize, &nReqXOff, &nReqYOff, |
1841 | 0 | &nReqXSize, &nReqYSize, &nOutXOff, &nOutYOff, |
1842 | 0 | &nOutXSize, &nOutYSize, bError) || |
1843 | 0 | nReqXOff != 0 || nReqYOff != 0 || nReqXSize != l_band->GetXSize() || |
1844 | 0 | nReqYSize != l_band->GetYSize()) |
1845 | 0 | { |
1846 | 0 | *pbSuccess = FALSE; |
1847 | 0 | return 0; |
1848 | 0 | } |
1849 | | |
1850 | 0 | const double dfVal = l_band->GetMinimum(pbSuccess); |
1851 | 0 | if (NeedMaxValAdjustment() && dfVal > m_nMaxValue) |
1852 | 0 | return m_nMaxValue; |
1853 | 0 | return dfVal; |
1854 | 0 | } |
1855 | | |
1856 | | /************************************************************************/ |
1857 | | /* GetMaximum() */ |
1858 | | /************************************************************************/ |
1859 | | |
1860 | | double VRTSimpleSource::GetMaximum(int nXSize, int nYSize, int *pbSuccess) |
1861 | 0 | { |
1862 | | // The window we will actually request from the source raster band. |
1863 | 0 | double dfReqXOff = 0.0; |
1864 | 0 | double dfReqYOff = 0.0; |
1865 | 0 | double dfReqXSize = 0.0; |
1866 | 0 | double dfReqYSize = 0.0; |
1867 | 0 | int nReqXOff = 0; |
1868 | 0 | int nReqYOff = 0; |
1869 | 0 | int nReqXSize = 0; |
1870 | 0 | int nReqYSize = 0; |
1871 | | |
1872 | | // The window we will actual set _within_ the pData buffer. |
1873 | 0 | int nOutXOff = 0; |
1874 | 0 | int nOutYOff = 0; |
1875 | 0 | int nOutXSize = 0; |
1876 | 0 | int nOutYSize = 0; |
1877 | |
|
1878 | 0 | bool bError = false; |
1879 | 0 | auto l_band = GetRasterBand(); |
1880 | 0 | if (!l_band || |
1881 | 0 | !GetSrcDstWindow(0, 0, nXSize, nYSize, nXSize, nYSize, |
1882 | 0 | GRIORA_NearestNeighbour, &dfReqXOff, &dfReqYOff, |
1883 | 0 | &dfReqXSize, &dfReqYSize, &nReqXOff, &nReqYOff, |
1884 | 0 | &nReqXSize, &nReqYSize, &nOutXOff, &nOutYOff, |
1885 | 0 | &nOutXSize, &nOutYSize, bError) || |
1886 | 0 | nReqXOff != 0 || nReqYOff != 0 || nReqXSize != l_band->GetXSize() || |
1887 | 0 | nReqYSize != l_band->GetYSize()) |
1888 | 0 | { |
1889 | 0 | *pbSuccess = FALSE; |
1890 | 0 | return 0; |
1891 | 0 | } |
1892 | | |
1893 | 0 | const double dfVal = l_band->GetMaximum(pbSuccess); |
1894 | 0 | if (NeedMaxValAdjustment() && dfVal > m_nMaxValue) |
1895 | 0 | return m_nMaxValue; |
1896 | 0 | return dfVal; |
1897 | 0 | } |
1898 | | |
1899 | | /************************************************************************/ |
1900 | | /* GetHistogram() */ |
1901 | | /************************************************************************/ |
1902 | | |
1903 | | CPLErr VRTSimpleSource::GetHistogram(int nXSize, int nYSize, double dfMin, |
1904 | | double dfMax, int nBuckets, |
1905 | | GUIntBig *panHistogram, |
1906 | | int bIncludeOutOfRange, int bApproxOK, |
1907 | | GDALProgressFunc pfnProgress, |
1908 | | void *pProgressData) |
1909 | 0 | { |
1910 | | // The window we will actually request from the source raster band. |
1911 | 0 | double dfReqXOff = 0.0; |
1912 | 0 | double dfReqYOff = 0.0; |
1913 | 0 | double dfReqXSize = 0.0; |
1914 | 0 | double dfReqYSize = 0.0; |
1915 | 0 | int nReqXOff = 0; |
1916 | 0 | int nReqYOff = 0; |
1917 | 0 | int nReqXSize = 0; |
1918 | 0 | int nReqYSize = 0; |
1919 | | |
1920 | | // The window we will actual set _within_ the pData buffer. |
1921 | 0 | int nOutXOff = 0; |
1922 | 0 | int nOutYOff = 0; |
1923 | 0 | int nOutXSize = 0; |
1924 | 0 | int nOutYSize = 0; |
1925 | |
|
1926 | 0 | bool bError = false; |
1927 | 0 | auto l_band = GetRasterBand(); |
1928 | 0 | if (!l_band || NeedMaxValAdjustment() || |
1929 | 0 | !GetSrcDstWindow(0, 0, nXSize, nYSize, nXSize, nYSize, |
1930 | 0 | GRIORA_NearestNeighbour, &dfReqXOff, &dfReqYOff, |
1931 | 0 | &dfReqXSize, &dfReqYSize, &nReqXOff, &nReqYOff, |
1932 | 0 | &nReqXSize, &nReqYSize, &nOutXOff, &nOutYOff, |
1933 | 0 | &nOutXSize, &nOutYSize, bError) || |
1934 | 0 | nReqXOff != 0 || nReqYOff != 0 || nReqXSize != l_band->GetXSize() || |
1935 | 0 | nReqYSize != l_band->GetYSize()) |
1936 | 0 | { |
1937 | 0 | return CE_Failure; |
1938 | 0 | } |
1939 | | |
1940 | 0 | return l_band->GetHistogram(dfMin, dfMax, nBuckets, panHistogram, |
1941 | 0 | bIncludeOutOfRange, bApproxOK, pfnProgress, |
1942 | 0 | pProgressData); |
1943 | 0 | } |
1944 | | |
1945 | | /************************************************************************/ |
1946 | | /* DatasetRasterIO() */ |
1947 | | /************************************************************************/ |
1948 | | |
1949 | | CPLErr VRTSimpleSource::DatasetRasterIO( |
1950 | | GDALDataType eVRTBandDataType, int nXOff, int nYOff, int nXSize, int nYSize, |
1951 | | void *pData, int nBufXSize, int nBufYSize, GDALDataType eBufType, |
1952 | | int nBandCount, const int *panBandMap, GSpacing nPixelSpace, |
1953 | | GSpacing nLineSpace, GSpacing nBandSpace, |
1954 | | GDALRasterIOExtraArg *psExtraArgIn) |
1955 | 0 | { |
1956 | 0 | if (GetType() != VRTSimpleSource::GetTypeStatic()) |
1957 | 0 | { |
1958 | 0 | CPLError(CE_Failure, CPLE_NotSupported, |
1959 | 0 | "DatasetRasterIO() not implemented for %s", GetType()); |
1960 | 0 | return CE_Failure; |
1961 | 0 | } |
1962 | | |
1963 | 0 | GDALRasterIOExtraArg sExtraArg; |
1964 | 0 | INIT_RASTERIO_EXTRA_ARG(sExtraArg); |
1965 | 0 | GDALRasterIOExtraArg *psExtraArg = &sExtraArg; |
1966 | |
|
1967 | 0 | double dfXOff = nXOff; |
1968 | 0 | double dfYOff = nYOff; |
1969 | 0 | double dfXSize = nXSize; |
1970 | 0 | double dfYSize = nYSize; |
1971 | 0 | if (psExtraArgIn != nullptr && psExtraArgIn->bFloatingPointWindowValidity) |
1972 | 0 | { |
1973 | 0 | dfXOff = psExtraArgIn->dfXOff; |
1974 | 0 | dfYOff = psExtraArgIn->dfYOff; |
1975 | 0 | dfXSize = psExtraArgIn->dfXSize; |
1976 | 0 | dfYSize = psExtraArgIn->dfYSize; |
1977 | 0 | } |
1978 | | |
1979 | | // The window we will actually request from the source raster band. |
1980 | 0 | double dfReqXOff = 0.0; |
1981 | 0 | double dfReqYOff = 0.0; |
1982 | 0 | double dfReqXSize = 0.0; |
1983 | 0 | double dfReqYSize = 0.0; |
1984 | 0 | int nReqXOff = 0; |
1985 | 0 | int nReqYOff = 0; |
1986 | 0 | int nReqXSize = 0; |
1987 | 0 | int nReqYSize = 0; |
1988 | | |
1989 | | // The window we will actual set _within_ the pData buffer. |
1990 | 0 | int nOutXOff = 0; |
1991 | 0 | int nOutYOff = 0; |
1992 | 0 | int nOutXSize = 0; |
1993 | 0 | int nOutYSize = 0; |
1994 | |
|
1995 | 0 | if (!m_osResampling.empty()) |
1996 | 0 | { |
1997 | 0 | psExtraArg->eResampleAlg = GDALRasterIOGetResampleAlg(m_osResampling); |
1998 | 0 | } |
1999 | 0 | else if (psExtraArgIn != nullptr) |
2000 | 0 | { |
2001 | 0 | psExtraArg->eResampleAlg = psExtraArgIn->eResampleAlg; |
2002 | 0 | } |
2003 | |
|
2004 | 0 | bool bError = false; |
2005 | 0 | if (!GetSrcDstWindow(dfXOff, dfYOff, dfXSize, dfYSize, nBufXSize, nBufYSize, |
2006 | 0 | psExtraArg->eResampleAlg, &dfReqXOff, &dfReqYOff, |
2007 | 0 | &dfReqXSize, &dfReqYSize, &nReqXOff, &nReqYOff, |
2008 | 0 | &nReqXSize, &nReqYSize, &nOutXOff, &nOutYOff, |
2009 | 0 | &nOutXSize, &nOutYSize, bError)) |
2010 | 0 | { |
2011 | 0 | return bError ? CE_Failure : CE_None; |
2012 | 0 | } |
2013 | | |
2014 | 0 | auto l_band = GetRasterBand(); |
2015 | 0 | if (!l_band) |
2016 | 0 | return CE_Failure; |
2017 | | |
2018 | 0 | GDALDataset *poDS = l_band->GetDataset(); |
2019 | 0 | if (poDS == nullptr) |
2020 | 0 | return CE_Failure; |
2021 | | |
2022 | 0 | psExtraArg->bFloatingPointWindowValidity = TRUE; |
2023 | 0 | psExtraArg->dfXOff = dfReqXOff; |
2024 | 0 | psExtraArg->dfYOff = dfReqYOff; |
2025 | 0 | psExtraArg->dfXSize = dfReqXSize; |
2026 | 0 | psExtraArg->dfYSize = dfReqYSize; |
2027 | 0 | if (psExtraArgIn) |
2028 | 0 | { |
2029 | 0 | psExtraArg->pfnProgress = psExtraArgIn->pfnProgress; |
2030 | 0 | psExtraArg->pProgressData = psExtraArgIn->pProgressData; |
2031 | 0 | if (psExtraArgIn->nVersion >= 2) |
2032 | 0 | { |
2033 | 0 | psExtraArg->bUseOnlyThisScale = psExtraArgIn->bUseOnlyThisScale; |
2034 | 0 | } |
2035 | 0 | psExtraArg->bOperateInBufType = |
2036 | 0 | GDAL_GET_OPERATE_IN_BUF_TYPE(*psExtraArgIn); |
2037 | 0 | } |
2038 | |
|
2039 | 0 | GByte *pabyOut = static_cast<unsigned char *>(pData) + |
2040 | 0 | nOutXOff * nPixelSpace + |
2041 | 0 | static_cast<GPtrDiff_t>(nOutYOff) * nLineSpace; |
2042 | |
|
2043 | 0 | CPLErr eErr = CE_Failure; |
2044 | |
|
2045 | 0 | if (GDALDataTypeIsConversionLossy(l_band->GetRasterDataType(), |
2046 | 0 | eVRTBandDataType)) |
2047 | 0 | { |
2048 | 0 | if (!psExtraArg->bOperateInBufType) |
2049 | 0 | { |
2050 | 0 | const int nBandDTSize = GDALGetDataTypeSizeBytes(eVRTBandDataType); |
2051 | 0 | void *pTemp = VSI_MALLOC3_VERBOSE( |
2052 | 0 | nOutXSize, nOutYSize, |
2053 | 0 | cpl::fits_on<int>(nBandDTSize * nBandCount)); |
2054 | 0 | if (pTemp) |
2055 | 0 | { |
2056 | 0 | eErr = poDS->RasterIO(GF_Read, nReqXOff, nReqYOff, nReqXSize, |
2057 | 0 | nReqYSize, pTemp, nOutXSize, nOutYSize, |
2058 | 0 | eVRTBandDataType, nBandCount, panBandMap, |
2059 | 0 | 0, 0, 0, psExtraArg); |
2060 | 0 | if (eErr == CE_None) |
2061 | 0 | { |
2062 | 0 | GByte *pabyTemp = static_cast<GByte *>(pTemp); |
2063 | 0 | const size_t nSrcBandSpace = |
2064 | 0 | static_cast<size_t>(nOutYSize) * nOutXSize * |
2065 | 0 | nBandDTSize; |
2066 | 0 | for (int iBand = 0; iBand < nBandCount; iBand++) |
2067 | 0 | { |
2068 | 0 | for (int iY = 0; iY < nOutYSize; iY++) |
2069 | 0 | { |
2070 | 0 | GDALCopyWords(pabyTemp + iBand * nSrcBandSpace + |
2071 | 0 | static_cast<size_t>(iY) * |
2072 | 0 | nBandDTSize * nOutXSize, |
2073 | 0 | eVRTBandDataType, nBandDTSize, |
2074 | 0 | pabyOut + static_cast<GPtrDiff_t>( |
2075 | 0 | iY * nLineSpace + |
2076 | 0 | iBand * nBandSpace), |
2077 | 0 | eBufType, |
2078 | 0 | static_cast<int>(nPixelSpace), |
2079 | 0 | nOutXSize); |
2080 | 0 | } |
2081 | 0 | } |
2082 | 0 | } |
2083 | 0 | VSIFree(pTemp); |
2084 | 0 | } |
2085 | 0 | } |
2086 | 0 | else |
2087 | 0 | { |
2088 | 0 | eErr = poDS->RasterIO(GF_Read, nReqXOff, nReqYOff, nReqXSize, |
2089 | 0 | nReqYSize, pabyOut, nOutXSize, nOutYSize, |
2090 | 0 | eBufType, nBandCount, panBandMap, nPixelSpace, |
2091 | 0 | nLineSpace, nBandSpace, psExtraArg); |
2092 | 0 | if (eErr == CE_None) |
2093 | 0 | { |
2094 | 0 | for (int k = 0; k < nBandCount; k++) |
2095 | 0 | { |
2096 | 0 | for (int j = 0; j < nOutYSize; j++) |
2097 | 0 | { |
2098 | 0 | for (int i = 0; i < nOutXSize; i++) |
2099 | 0 | { |
2100 | 0 | void *pDst = pabyOut + k * nBandSpace + |
2101 | 0 | j * nLineSpace + i * nPixelSpace; |
2102 | 0 | GDALClampValueToType(pDst, eBufType, |
2103 | 0 | eVRTBandDataType); |
2104 | 0 | } |
2105 | 0 | } |
2106 | 0 | } |
2107 | 0 | } |
2108 | 0 | } |
2109 | 0 | } |
2110 | 0 | else |
2111 | 0 | { |
2112 | 0 | eErr = poDS->RasterIO(GF_Read, nReqXOff, nReqYOff, nReqXSize, nReqYSize, |
2113 | 0 | pabyOut, nOutXSize, nOutYSize, eBufType, |
2114 | 0 | nBandCount, panBandMap, nPixelSpace, nLineSpace, |
2115 | 0 | nBandSpace, psExtraArg); |
2116 | 0 | } |
2117 | |
|
2118 | 0 | if (NeedMaxValAdjustment()) |
2119 | 0 | { |
2120 | 0 | for (int k = 0; k < nBandCount; k++) |
2121 | 0 | { |
2122 | 0 | for (int j = 0; j < nOutYSize; j++) |
2123 | 0 | { |
2124 | 0 | for (int i = 0; i < nOutXSize; i++) |
2125 | 0 | { |
2126 | 0 | void *pDst = pabyOut + k * nBandSpace + j * nLineSpace + |
2127 | 0 | i * nPixelSpace; |
2128 | 0 | int nVal = 0; |
2129 | 0 | CopyWordIn(pDst, eBufType, &nVal, GDT_Int32); |
2130 | |
|
2131 | 0 | if (nVal > m_nMaxValue) |
2132 | 0 | nVal = m_nMaxValue; |
2133 | |
|
2134 | 0 | CopyWordOut(&nVal, GDT_Int32, pDst, eBufType); |
2135 | 0 | } |
2136 | 0 | } |
2137 | 0 | } |
2138 | 0 | } |
2139 | |
|
2140 | 0 | if (psExtraArg->pfnProgress) |
2141 | 0 | psExtraArg->pfnProgress(1.0, "", psExtraArg->pProgressData); |
2142 | |
|
2143 | 0 | return eErr; |
2144 | 0 | } |
2145 | | |
2146 | | /************************************************************************/ |
2147 | | /* SetResampling() */ |
2148 | | /************************************************************************/ |
2149 | | |
2150 | | void VRTSimpleSource::SetResampling(const char *pszResampling) |
2151 | 0 | { |
2152 | 0 | m_osResampling = (pszResampling) ? pszResampling : ""; |
2153 | 0 | } |
2154 | | |
2155 | | /************************************************************************/ |
2156 | | /* ==================================================================== */ |
2157 | | /* VRTAveragedSource */ |
2158 | | /* ==================================================================== */ |
2159 | | /************************************************************************/ |
2160 | | |
2161 | | /************************************************************************/ |
2162 | | /* VRTAveragedSource() */ |
2163 | | /************************************************************************/ |
2164 | | |
2165 | | VRTAveragedSource::VRTAveragedSource() |
2166 | 0 | { |
2167 | 0 | } |
2168 | | |
2169 | | /************************************************************************/ |
2170 | | /* GetTypeStatic() */ |
2171 | | /************************************************************************/ |
2172 | | |
2173 | | const char *VRTAveragedSource::GetTypeStatic() |
2174 | 0 | { |
2175 | 0 | static const char *TYPE = "AveragedSource"; |
2176 | 0 | return TYPE; |
2177 | 0 | } |
2178 | | |
2179 | | /************************************************************************/ |
2180 | | /* GetType() */ |
2181 | | /************************************************************************/ |
2182 | | |
2183 | | const char *VRTAveragedSource::GetType() const |
2184 | 0 | { |
2185 | 0 | return GetTypeStatic(); |
2186 | 0 | } |
2187 | | |
2188 | | /************************************************************************/ |
2189 | | /* SerializeToXML() */ |
2190 | | /************************************************************************/ |
2191 | | |
2192 | | CPLXMLNode *VRTAveragedSource::SerializeToXML(const char *pszVRTPath) |
2193 | | |
2194 | 0 | { |
2195 | 0 | CPLXMLNode *const psSrc = VRTSimpleSource::SerializeToXML(pszVRTPath); |
2196 | |
|
2197 | 0 | if (psSrc == nullptr) |
2198 | 0 | return nullptr; |
2199 | | |
2200 | 0 | CPLFree(psSrc->pszValue); |
2201 | 0 | psSrc->pszValue = CPLStrdup(GetTypeStatic()); |
2202 | |
|
2203 | 0 | return psSrc; |
2204 | 0 | } |
2205 | | |
2206 | | /************************************************************************/ |
2207 | | /* SetNoDataValue() */ |
2208 | | /************************************************************************/ |
2209 | | |
2210 | | void VRTAveragedSource::SetNoDataValue(double dfNewNoDataValue) |
2211 | | |
2212 | 0 | { |
2213 | 0 | if (dfNewNoDataValue == VRT_NODATA_UNSET) |
2214 | 0 | { |
2215 | 0 | m_bNoDataSet = FALSE; |
2216 | 0 | m_dfNoDataValue = VRT_NODATA_UNSET; |
2217 | 0 | return; |
2218 | 0 | } |
2219 | | |
2220 | 0 | m_bNoDataSet = TRUE; |
2221 | 0 | m_dfNoDataValue = dfNewNoDataValue; |
2222 | 0 | } |
2223 | | |
2224 | | /************************************************************************/ |
2225 | | /* RasterIO() */ |
2226 | | /************************************************************************/ |
2227 | | |
2228 | | CPLErr VRTAveragedSource::RasterIO(GDALDataType /*eVRTBandDataType*/, int nXOff, |
2229 | | int nYOff, int nXSize, int nYSize, |
2230 | | void *pData, int nBufXSize, int nBufYSize, |
2231 | | GDALDataType eBufType, GSpacing nPixelSpace, |
2232 | | GSpacing nLineSpace, |
2233 | | GDALRasterIOExtraArg *psExtraArgIn, |
2234 | | WorkingState & /*oWorkingState*/) |
2235 | | |
2236 | 0 | { |
2237 | 0 | GDALRasterIOExtraArg sExtraArg; |
2238 | 0 | INIT_RASTERIO_EXTRA_ARG(sExtraArg); |
2239 | 0 | GDALRasterIOExtraArg *psExtraArg = &sExtraArg; |
2240 | |
|
2241 | 0 | double dfXOff = nXOff; |
2242 | 0 | double dfYOff = nYOff; |
2243 | 0 | double dfXSize = nXSize; |
2244 | 0 | double dfYSize = nYSize; |
2245 | 0 | if (psExtraArgIn != nullptr && psExtraArgIn->bFloatingPointWindowValidity) |
2246 | 0 | { |
2247 | 0 | dfXOff = psExtraArgIn->dfXOff; |
2248 | 0 | dfYOff = psExtraArgIn->dfYOff; |
2249 | 0 | dfXSize = psExtraArgIn->dfXSize; |
2250 | 0 | dfYSize = psExtraArgIn->dfYSize; |
2251 | 0 | } |
2252 | | |
2253 | | // The window we will actually request from the source raster band. |
2254 | 0 | double dfReqXOff = 0.0; |
2255 | 0 | double dfReqYOff = 0.0; |
2256 | 0 | double dfReqXSize = 0.0; |
2257 | 0 | double dfReqYSize = 0.0; |
2258 | 0 | int nReqXOff = 0; |
2259 | 0 | int nReqYOff = 0; |
2260 | 0 | int nReqXSize = 0; |
2261 | 0 | int nReqYSize = 0; |
2262 | | |
2263 | | // The window we will actual set _within_ the pData buffer. |
2264 | 0 | int nOutXOff = 0; |
2265 | 0 | int nOutYOff = 0; |
2266 | 0 | int nOutXSize = 0; |
2267 | 0 | int nOutYSize = 0; |
2268 | |
|
2269 | 0 | if (!m_osResampling.empty()) |
2270 | 0 | { |
2271 | 0 | psExtraArg->eResampleAlg = GDALRasterIOGetResampleAlg(m_osResampling); |
2272 | 0 | } |
2273 | 0 | else if (psExtraArgIn != nullptr) |
2274 | 0 | { |
2275 | 0 | psExtraArg->eResampleAlg = psExtraArgIn->eResampleAlg; |
2276 | 0 | } |
2277 | |
|
2278 | 0 | bool bError = false; |
2279 | 0 | if (!GetSrcDstWindow(dfXOff, dfYOff, dfXSize, dfYSize, nBufXSize, nBufYSize, |
2280 | 0 | psExtraArg->eResampleAlg, &dfReqXOff, &dfReqYOff, |
2281 | 0 | &dfReqXSize, &dfReqYSize, &nReqXOff, &nReqYOff, |
2282 | 0 | &nReqXSize, &nReqYSize, &nOutXOff, &nOutYOff, |
2283 | 0 | &nOutXSize, &nOutYSize, bError)) |
2284 | 0 | { |
2285 | 0 | return bError ? CE_Failure : CE_None; |
2286 | 0 | } |
2287 | | |
2288 | 0 | auto l_band = GetRasterBand(); |
2289 | 0 | if (!l_band) |
2290 | 0 | return CE_Failure; |
2291 | | |
2292 | | /* -------------------------------------------------------------------- */ |
2293 | | /* Allocate a temporary buffer to whole the full resolution */ |
2294 | | /* data from the area of interest. */ |
2295 | | /* -------------------------------------------------------------------- */ |
2296 | 0 | float *const pafSrc = static_cast<float *>( |
2297 | 0 | VSI_MALLOC3_VERBOSE(sizeof(float), nReqXSize, nReqYSize)); |
2298 | 0 | if (pafSrc == nullptr) |
2299 | 0 | { |
2300 | 0 | return CE_Failure; |
2301 | 0 | } |
2302 | | |
2303 | | /* -------------------------------------------------------------------- */ |
2304 | | /* Load it. */ |
2305 | | /* -------------------------------------------------------------------- */ |
2306 | 0 | psExtraArg->bFloatingPointWindowValidity = TRUE; |
2307 | 0 | psExtraArg->dfXOff = dfReqXOff; |
2308 | 0 | psExtraArg->dfYOff = dfReqYOff; |
2309 | 0 | psExtraArg->dfXSize = dfReqXSize; |
2310 | 0 | psExtraArg->dfYSize = dfReqYSize; |
2311 | 0 | if (psExtraArgIn) |
2312 | 0 | { |
2313 | 0 | psExtraArg->pfnProgress = psExtraArgIn->pfnProgress; |
2314 | 0 | psExtraArg->pProgressData = psExtraArgIn->pProgressData; |
2315 | 0 | if (psExtraArgIn->nVersion >= 2) |
2316 | 0 | { |
2317 | 0 | psExtraArg->bUseOnlyThisScale = psExtraArgIn->bUseOnlyThisScale; |
2318 | 0 | } |
2319 | 0 | } |
2320 | |
|
2321 | 0 | const CPLErr eErr = l_band->RasterIO( |
2322 | 0 | GF_Read, nReqXOff, nReqYOff, nReqXSize, nReqYSize, pafSrc, nReqXSize, |
2323 | 0 | nReqYSize, GDT_Float32, 0, 0, psExtraArg); |
2324 | |
|
2325 | 0 | if (eErr != CE_None) |
2326 | 0 | { |
2327 | 0 | VSIFree(pafSrc); |
2328 | 0 | return eErr; |
2329 | 0 | } |
2330 | | |
2331 | | /* -------------------------------------------------------------------- */ |
2332 | | /* Do the averaging. */ |
2333 | | /* -------------------------------------------------------------------- */ |
2334 | 0 | for (int iBufLine = nOutYOff; iBufLine < nOutYOff + nOutYSize; iBufLine++) |
2335 | 0 | { |
2336 | 0 | const double dfYDst = |
2337 | 0 | (iBufLine / static_cast<double>(nBufYSize)) * nYSize + nYOff; |
2338 | |
|
2339 | 0 | for (int iBufPixel = nOutXOff; iBufPixel < nOutXOff + nOutXSize; |
2340 | 0 | iBufPixel++) |
2341 | 0 | { |
2342 | 0 | double dfXSrcStart, dfXSrcEnd, dfYSrcStart, dfYSrcEnd; |
2343 | 0 | int iXSrcStart, iYSrcStart, iXSrcEnd, iYSrcEnd; |
2344 | |
|
2345 | 0 | const double dfXDst = |
2346 | 0 | (iBufPixel / static_cast<double>(nBufXSize)) * nXSize + nXOff; |
2347 | | |
2348 | | // Compute the source image rectangle needed for this pixel. |
2349 | 0 | DstToSrc(dfXDst, dfYDst, dfXSrcStart, dfYSrcStart); |
2350 | 0 | DstToSrc(dfXDst + 1.0, dfYDst + 1.0, dfXSrcEnd, dfYSrcEnd); |
2351 | | |
2352 | | // Convert to integers, assuming that the center of the source |
2353 | | // pixel must be in our rect to get included. |
2354 | 0 | if (dfXSrcEnd >= dfXSrcStart + 1) |
2355 | 0 | { |
2356 | 0 | iXSrcStart = static_cast<int>(floor(dfXSrcStart + 0.5)); |
2357 | 0 | iXSrcEnd = static_cast<int>(floor(dfXSrcEnd + 0.5)); |
2358 | 0 | } |
2359 | 0 | else |
2360 | 0 | { |
2361 | | /* If the resampling factor is less than 100%, the distance */ |
2362 | | /* between the source pixel is < 1, so we stick to nearest */ |
2363 | | /* neighbour */ |
2364 | 0 | iXSrcStart = static_cast<int>(floor(dfXSrcStart)); |
2365 | 0 | iXSrcEnd = iXSrcStart + 1; |
2366 | 0 | } |
2367 | 0 | if (dfYSrcEnd >= dfYSrcStart + 1) |
2368 | 0 | { |
2369 | 0 | iYSrcStart = static_cast<int>(floor(dfYSrcStart + 0.5)); |
2370 | 0 | iYSrcEnd = static_cast<int>(floor(dfYSrcEnd + 0.5)); |
2371 | 0 | } |
2372 | 0 | else |
2373 | 0 | { |
2374 | 0 | iYSrcStart = static_cast<int>(floor(dfYSrcStart)); |
2375 | 0 | iYSrcEnd = iYSrcStart + 1; |
2376 | 0 | } |
2377 | | |
2378 | | // Transform into the coordinate system of the source *buffer* |
2379 | 0 | iXSrcStart -= nReqXOff; |
2380 | 0 | iYSrcStart -= nReqYOff; |
2381 | 0 | iXSrcEnd -= nReqXOff; |
2382 | 0 | iYSrcEnd -= nReqYOff; |
2383 | |
|
2384 | 0 | double dfSum = 0.0; |
2385 | 0 | int nPixelCount = 0; |
2386 | |
|
2387 | 0 | for (int iY = iYSrcStart; iY < iYSrcEnd; iY++) |
2388 | 0 | { |
2389 | 0 | if (iY < 0 || iY >= nReqYSize) |
2390 | 0 | continue; |
2391 | | |
2392 | 0 | for (int iX = iXSrcStart; iX < iXSrcEnd; iX++) |
2393 | 0 | { |
2394 | 0 | if (iX < 0 || iX >= nReqXSize) |
2395 | 0 | continue; |
2396 | | |
2397 | 0 | const float fSampledValue = |
2398 | 0 | pafSrc[iX + static_cast<size_t>(iY) * nReqXSize]; |
2399 | 0 | if (std::isnan(fSampledValue)) |
2400 | 0 | continue; |
2401 | | |
2402 | 0 | if (m_bNoDataSet && |
2403 | 0 | GDALIsValueInRange<float>(m_dfNoDataValue) && |
2404 | 0 | ARE_REAL_EQUAL(fSampledValue, |
2405 | 0 | static_cast<float>(m_dfNoDataValue))) |
2406 | 0 | continue; |
2407 | | |
2408 | 0 | nPixelCount++; |
2409 | 0 | dfSum += pafSrc[iX + static_cast<size_t>(iY) * nReqXSize]; |
2410 | 0 | } |
2411 | 0 | } |
2412 | |
|
2413 | 0 | if (nPixelCount == 0) |
2414 | 0 | continue; |
2415 | | |
2416 | | // Compute output value. |
2417 | 0 | const float dfOutputValue = static_cast<float>(dfSum / nPixelCount); |
2418 | | |
2419 | | // Put it in the output buffer. |
2420 | 0 | GByte *pDstLocation = |
2421 | 0 | static_cast<GByte *>(pData) + nPixelSpace * iBufPixel + |
2422 | 0 | static_cast<GPtrDiff_t>(nLineSpace) * iBufLine; |
2423 | |
|
2424 | 0 | if (eBufType == GDT_UInt8) |
2425 | 0 | *pDstLocation = static_cast<GByte>( |
2426 | 0 | std::min(255.0, std::max(0.0, dfOutputValue + 0.5))); |
2427 | 0 | else |
2428 | 0 | GDALCopyWords(&dfOutputValue, GDT_Float32, 4, pDstLocation, |
2429 | 0 | eBufType, 8, 1); |
2430 | 0 | } |
2431 | 0 | } |
2432 | |
|
2433 | 0 | VSIFree(pafSrc); |
2434 | |
|
2435 | 0 | if (psExtraArg->pfnProgress) |
2436 | 0 | psExtraArg->pfnProgress(1.0, "", psExtraArg->pProgressData); |
2437 | |
|
2438 | 0 | return CE_None; |
2439 | 0 | } |
2440 | | |
2441 | | /************************************************************************/ |
2442 | | /* GetMinimum() */ |
2443 | | /************************************************************************/ |
2444 | | |
2445 | | double VRTAveragedSource::GetMinimum(int /* nXSize */, int /* nYSize */, |
2446 | | int *pbSuccess) |
2447 | 0 | { |
2448 | 0 | *pbSuccess = FALSE; |
2449 | 0 | return 0.0; |
2450 | 0 | } |
2451 | | |
2452 | | /************************************************************************/ |
2453 | | /* GetMaximum() */ |
2454 | | /************************************************************************/ |
2455 | | |
2456 | | double VRTAveragedSource::GetMaximum(int /* nXSize */, int /* nYSize */, |
2457 | | int *pbSuccess) |
2458 | 0 | { |
2459 | 0 | *pbSuccess = FALSE; |
2460 | 0 | return 0.0; |
2461 | 0 | } |
2462 | | |
2463 | | /************************************************************************/ |
2464 | | /* GetHistogram() */ |
2465 | | /************************************************************************/ |
2466 | | |
2467 | | CPLErr VRTAveragedSource::GetHistogram( |
2468 | | int /* nXSize */, int /* nYSize */, double /* dfMin */, double /* dfMax */, |
2469 | | int /* nBuckets */, GUIntBig * /* panHistogram */, |
2470 | | int /* bIncludeOutOfRange */, int /* bApproxOK */, |
2471 | | GDALProgressFunc /* pfnProgress */, void * /* pProgressData */) |
2472 | 0 | { |
2473 | 0 | return CE_Failure; |
2474 | 0 | } |
2475 | | |
2476 | | /************************************************************************/ |
2477 | | /* ==================================================================== */ |
2478 | | /* VRTNoDataFromMaskSource */ |
2479 | | /* ==================================================================== */ |
2480 | | /************************************************************************/ |
2481 | | |
2482 | | /************************************************************************/ |
2483 | | /* VRTNoDataFromMaskSource() */ |
2484 | | /************************************************************************/ |
2485 | | |
2486 | | VRTNoDataFromMaskSource::VRTNoDataFromMaskSource() |
2487 | 0 | { |
2488 | 0 | } |
2489 | | |
2490 | | /************************************************************************/ |
2491 | | /* XMLInit() */ |
2492 | | /************************************************************************/ |
2493 | | |
2494 | | CPLErr |
2495 | | VRTNoDataFromMaskSource::XMLInit(const CPLXMLNode *psSrc, |
2496 | | const char *pszVRTPath, |
2497 | | VRTMapSharedResources &oMapSharedSources) |
2498 | | |
2499 | 0 | { |
2500 | | /* -------------------------------------------------------------------- */ |
2501 | | /* Do base initialization. */ |
2502 | | /* -------------------------------------------------------------------- */ |
2503 | 0 | { |
2504 | 0 | const CPLErr eErr = |
2505 | 0 | VRTSimpleSource::XMLInit(psSrc, pszVRTPath, oMapSharedSources); |
2506 | 0 | if (eErr != CE_None) |
2507 | 0 | return eErr; |
2508 | 0 | } |
2509 | | |
2510 | 0 | if (const char *pszNODATA = CPLGetXMLValue(psSrc, "NODATA", nullptr)) |
2511 | 0 | { |
2512 | 0 | m_bNoDataSet = true; |
2513 | 0 | m_dfNoDataValue = CPLAtofM(pszNODATA); |
2514 | 0 | } |
2515 | |
|
2516 | 0 | m_dfMaskValueThreshold = |
2517 | 0 | CPLAtofM(CPLGetXMLValue(psSrc, "MaskValueThreshold", "0")); |
2518 | |
|
2519 | 0 | if (const char *pszRemappedValue = |
2520 | 0 | CPLGetXMLValue(psSrc, "RemappedValue", nullptr)) |
2521 | 0 | { |
2522 | 0 | m_bHasRemappedValue = true; |
2523 | 0 | m_dfRemappedValue = CPLAtofM(pszRemappedValue); |
2524 | 0 | } |
2525 | |
|
2526 | 0 | return CE_None; |
2527 | 0 | } |
2528 | | |
2529 | | /************************************************************************/ |
2530 | | /* GetTypeStatic() */ |
2531 | | /************************************************************************/ |
2532 | | |
2533 | | const char *VRTNoDataFromMaskSource::GetTypeStatic() |
2534 | 0 | { |
2535 | 0 | static const char *TYPE = "NoDataFromMaskSource"; |
2536 | 0 | return TYPE; |
2537 | 0 | } |
2538 | | |
2539 | | /************************************************************************/ |
2540 | | /* GetType() */ |
2541 | | /************************************************************************/ |
2542 | | |
2543 | | const char *VRTNoDataFromMaskSource::GetType() const |
2544 | 0 | { |
2545 | 0 | return GetTypeStatic(); |
2546 | 0 | } |
2547 | | |
2548 | | /************************************************************************/ |
2549 | | /* SerializeToXML() */ |
2550 | | /************************************************************************/ |
2551 | | |
2552 | | CPLXMLNode *VRTNoDataFromMaskSource::SerializeToXML(const char *pszVRTPath) |
2553 | | |
2554 | 0 | { |
2555 | 0 | CPLXMLNode *const psSrc = VRTSimpleSource::SerializeToXML(pszVRTPath); |
2556 | |
|
2557 | 0 | if (psSrc == nullptr) |
2558 | 0 | return nullptr; |
2559 | | |
2560 | 0 | CPLFree(psSrc->pszValue); |
2561 | 0 | psSrc->pszValue = CPLStrdup(GetTypeStatic()); |
2562 | |
|
2563 | 0 | if (m_bNoDataSet) |
2564 | 0 | { |
2565 | 0 | CPLSetXMLValue(psSrc, "MaskValueThreshold", |
2566 | 0 | CPLSPrintf("%.17g", m_dfMaskValueThreshold)); |
2567 | |
|
2568 | 0 | GDALDataType eBandDT = GDT_Unknown; |
2569 | 0 | double dfNoDataValue = m_dfNoDataValue; |
2570 | 0 | const auto kMaxFloat = std::numeric_limits<float>::max(); |
2571 | 0 | if (std::fabs(std::fabs(m_dfNoDataValue) - kMaxFloat) < |
2572 | 0 | 1e-10 * kMaxFloat) |
2573 | 0 | { |
2574 | 0 | auto l_band = GetRasterBand(); |
2575 | 0 | if (l_band) |
2576 | 0 | { |
2577 | 0 | eBandDT = l_band->GetRasterDataType(); |
2578 | 0 | if (eBandDT == GDT_Float32) |
2579 | 0 | { |
2580 | 0 | dfNoDataValue = |
2581 | 0 | GDALAdjustNoDataCloseToFloatMax(m_dfNoDataValue); |
2582 | 0 | } |
2583 | 0 | } |
2584 | 0 | } |
2585 | 0 | CPLSetXMLValue(psSrc, "NODATA", |
2586 | 0 | VRTSerializeNoData(dfNoDataValue, eBandDT, 18).c_str()); |
2587 | 0 | } |
2588 | |
|
2589 | 0 | if (m_bHasRemappedValue) |
2590 | 0 | { |
2591 | 0 | CPLSetXMLValue(psSrc, "RemappedValue", |
2592 | 0 | CPLSPrintf("%.17g", m_dfRemappedValue)); |
2593 | 0 | } |
2594 | |
|
2595 | 0 | return psSrc; |
2596 | 0 | } |
2597 | | |
2598 | | /************************************************************************/ |
2599 | | /* SetParameters() */ |
2600 | | /************************************************************************/ |
2601 | | |
2602 | | void VRTNoDataFromMaskSource::SetParameters(double dfNoDataValue, |
2603 | | double dfMaskValueThreshold) |
2604 | 0 | { |
2605 | 0 | m_bNoDataSet = true; |
2606 | 0 | m_dfNoDataValue = dfNoDataValue; |
2607 | 0 | m_dfMaskValueThreshold = dfMaskValueThreshold; |
2608 | 0 | if (!m_bHasRemappedValue) |
2609 | 0 | m_dfRemappedValue = m_dfNoDataValue; |
2610 | 0 | } |
2611 | | |
2612 | | /************************************************************************/ |
2613 | | /* SetParameters() */ |
2614 | | /************************************************************************/ |
2615 | | |
2616 | | void VRTNoDataFromMaskSource::SetParameters(double dfNoDataValue, |
2617 | | double dfMaskValueThreshold, |
2618 | | double dfRemappedValue) |
2619 | 0 | { |
2620 | 0 | SetParameters(dfNoDataValue, dfMaskValueThreshold); |
2621 | 0 | m_bHasRemappedValue = true; |
2622 | 0 | m_dfRemappedValue = dfRemappedValue; |
2623 | 0 | } |
2624 | | |
2625 | | /************************************************************************/ |
2626 | | /* RasterIO() */ |
2627 | | /************************************************************************/ |
2628 | | |
2629 | | CPLErr VRTNoDataFromMaskSource::RasterIO( |
2630 | | GDALDataType eVRTBandDataType, int nXOff, int nYOff, int nXSize, int nYSize, |
2631 | | void *pData, int nBufXSize, int nBufYSize, GDALDataType eBufType, |
2632 | | GSpacing nPixelSpace, GSpacing nLineSpace, |
2633 | | GDALRasterIOExtraArg *psExtraArgIn, WorkingState &oWorkingState) |
2634 | | |
2635 | 0 | { |
2636 | 0 | if (!m_bNoDataSet) |
2637 | 0 | { |
2638 | 0 | return VRTSimpleSource::RasterIO(eVRTBandDataType, nXOff, nYOff, nXSize, |
2639 | 0 | nYSize, pData, nBufXSize, nBufYSize, |
2640 | 0 | eBufType, nPixelSpace, nLineSpace, |
2641 | 0 | psExtraArgIn, oWorkingState); |
2642 | 0 | } |
2643 | | |
2644 | 0 | GDALRasterIOExtraArg sExtraArg; |
2645 | 0 | INIT_RASTERIO_EXTRA_ARG(sExtraArg); |
2646 | 0 | GDALRasterIOExtraArg *psExtraArg = &sExtraArg; |
2647 | |
|
2648 | 0 | double dfXOff = nXOff; |
2649 | 0 | double dfYOff = nYOff; |
2650 | 0 | double dfXSize = nXSize; |
2651 | 0 | double dfYSize = nYSize; |
2652 | 0 | if (psExtraArgIn != nullptr && psExtraArgIn->bFloatingPointWindowValidity) |
2653 | 0 | { |
2654 | 0 | dfXOff = psExtraArgIn->dfXOff; |
2655 | 0 | dfYOff = psExtraArgIn->dfYOff; |
2656 | 0 | dfXSize = psExtraArgIn->dfXSize; |
2657 | 0 | dfYSize = psExtraArgIn->dfYSize; |
2658 | 0 | } |
2659 | | |
2660 | | // The window we will actually request from the source raster band. |
2661 | 0 | double dfReqXOff = 0.0; |
2662 | 0 | double dfReqYOff = 0.0; |
2663 | 0 | double dfReqXSize = 0.0; |
2664 | 0 | double dfReqYSize = 0.0; |
2665 | 0 | int nReqXOff = 0; |
2666 | 0 | int nReqYOff = 0; |
2667 | 0 | int nReqXSize = 0; |
2668 | 0 | int nReqYSize = 0; |
2669 | | |
2670 | | // The window we will actual set _within_ the pData buffer. |
2671 | 0 | int nOutXOff = 0; |
2672 | 0 | int nOutYOff = 0; |
2673 | 0 | int nOutXSize = 0; |
2674 | 0 | int nOutYSize = 0; |
2675 | |
|
2676 | 0 | if (!m_osResampling.empty()) |
2677 | 0 | { |
2678 | 0 | psExtraArg->eResampleAlg = GDALRasterIOGetResampleAlg(m_osResampling); |
2679 | 0 | } |
2680 | 0 | else if (psExtraArgIn != nullptr) |
2681 | 0 | { |
2682 | 0 | psExtraArg->eResampleAlg = psExtraArgIn->eResampleAlg; |
2683 | 0 | } |
2684 | |
|
2685 | 0 | bool bError = false; |
2686 | 0 | if (!GetSrcDstWindow(dfXOff, dfYOff, dfXSize, dfYSize, nBufXSize, nBufYSize, |
2687 | 0 | psExtraArg->eResampleAlg, &dfReqXOff, &dfReqYOff, |
2688 | 0 | &dfReqXSize, &dfReqYSize, &nReqXOff, &nReqYOff, |
2689 | 0 | &nReqXSize, &nReqYSize, &nOutXOff, &nOutYOff, |
2690 | 0 | &nOutXSize, &nOutYSize, bError)) |
2691 | 0 | { |
2692 | 0 | return bError ? CE_Failure : CE_None; |
2693 | 0 | } |
2694 | | |
2695 | 0 | auto l_band = GetRasterBand(); |
2696 | 0 | if (!l_band) |
2697 | 0 | return CE_Failure; |
2698 | | |
2699 | | /* -------------------------------------------------------------------- */ |
2700 | | /* Allocate temporary buffer(s). */ |
2701 | | /* -------------------------------------------------------------------- */ |
2702 | 0 | const auto eSrcBandDT = l_band->GetRasterDataType(); |
2703 | 0 | const int nSrcBandDTSize = GDALGetDataTypeSizeBytes(eSrcBandDT); |
2704 | 0 | const auto eSrcMaskBandDT = l_band->GetMaskBand()->GetRasterDataType(); |
2705 | 0 | const int nSrcMaskBandDTSize = GDALGetDataTypeSizeBytes(eSrcMaskBandDT); |
2706 | 0 | double dfRemappedValue = m_dfRemappedValue; |
2707 | 0 | if (!m_bHasRemappedValue) |
2708 | 0 | { |
2709 | 0 | if (eSrcBandDT == GDT_UInt8 && |
2710 | 0 | m_dfNoDataValue >= std::numeric_limits<GByte>::min() && |
2711 | 0 | m_dfNoDataValue <= std::numeric_limits<GByte>::max() && |
2712 | 0 | static_cast<int>(m_dfNoDataValue) == m_dfNoDataValue) |
2713 | 0 | { |
2714 | 0 | if (m_dfNoDataValue == std::numeric_limits<GByte>::max()) |
2715 | 0 | dfRemappedValue = m_dfNoDataValue - 1; |
2716 | 0 | else |
2717 | 0 | dfRemappedValue = m_dfNoDataValue + 1; |
2718 | 0 | } |
2719 | 0 | else if (eSrcBandDT == GDT_UInt16 && |
2720 | 0 | m_dfNoDataValue >= std::numeric_limits<uint16_t>::min() && |
2721 | 0 | m_dfNoDataValue <= std::numeric_limits<uint16_t>::max() && |
2722 | 0 | static_cast<int>(m_dfNoDataValue) == m_dfNoDataValue) |
2723 | 0 | { |
2724 | 0 | if (m_dfNoDataValue == std::numeric_limits<uint16_t>::max()) |
2725 | 0 | dfRemappedValue = m_dfNoDataValue - 1; |
2726 | 0 | else |
2727 | 0 | dfRemappedValue = m_dfNoDataValue + 1; |
2728 | 0 | } |
2729 | 0 | else if (eSrcBandDT == GDT_Int16 && |
2730 | 0 | m_dfNoDataValue >= std::numeric_limits<int16_t>::min() && |
2731 | 0 | m_dfNoDataValue <= std::numeric_limits<int16_t>::max() && |
2732 | 0 | static_cast<int>(m_dfNoDataValue) == m_dfNoDataValue) |
2733 | 0 | { |
2734 | 0 | if (m_dfNoDataValue == std::numeric_limits<int16_t>::max()) |
2735 | 0 | dfRemappedValue = m_dfNoDataValue - 1; |
2736 | 0 | else |
2737 | 0 | dfRemappedValue = m_dfNoDataValue + 1; |
2738 | 0 | } |
2739 | 0 | else |
2740 | 0 | { |
2741 | 0 | constexpr double EPS = 1e-3; |
2742 | 0 | if (m_dfNoDataValue == 0) |
2743 | 0 | dfRemappedValue = EPS; |
2744 | 0 | else |
2745 | 0 | dfRemappedValue = m_dfNoDataValue * (1 + EPS); |
2746 | 0 | } |
2747 | 0 | } |
2748 | 0 | const bool bByteOptim = |
2749 | 0 | (eSrcBandDT == GDT_UInt8 && eBufType == GDT_UInt8 && |
2750 | 0 | eSrcMaskBandDT == GDT_UInt8 && m_dfMaskValueThreshold >= 0 && |
2751 | 0 | m_dfMaskValueThreshold <= 255 && |
2752 | 0 | static_cast<int>(m_dfMaskValueThreshold) == m_dfMaskValueThreshold && |
2753 | 0 | m_dfNoDataValue >= 0 && m_dfNoDataValue <= 255 && |
2754 | 0 | static_cast<int>(m_dfNoDataValue) == m_dfNoDataValue && |
2755 | 0 | dfRemappedValue >= 0 && dfRemappedValue <= 255 && |
2756 | 0 | static_cast<int>(dfRemappedValue) == dfRemappedValue); |
2757 | 0 | GByte *pabyWrkBuffer; |
2758 | 0 | try |
2759 | 0 | { |
2760 | 0 | if (bByteOptim && nOutXOff == 0 && nOutYOff == 0 && |
2761 | 0 | nOutXSize == nBufXSize && nOutYSize == nBufYSize && |
2762 | 0 | nPixelSpace == nSrcBandDTSize && |
2763 | 0 | nLineSpace == nPixelSpace * nBufXSize) |
2764 | 0 | { |
2765 | 0 | pabyWrkBuffer = static_cast<GByte *>(pData); |
2766 | 0 | } |
2767 | 0 | else |
2768 | 0 | { |
2769 | 0 | oWorkingState.m_abyWrkBuffer.resize(static_cast<size_t>(nOutXSize) * |
2770 | 0 | nOutYSize * nSrcBandDTSize); |
2771 | 0 | pabyWrkBuffer = |
2772 | 0 | reinterpret_cast<GByte *>(oWorkingState.m_abyWrkBuffer.data()); |
2773 | 0 | } |
2774 | 0 | oWorkingState.m_abyWrkBufferMask.resize(static_cast<size_t>(nOutXSize) * |
2775 | 0 | nOutYSize * nSrcMaskBandDTSize); |
2776 | 0 | } |
2777 | 0 | catch (const std::exception &) |
2778 | 0 | { |
2779 | 0 | CPLError(CE_Failure, CPLE_OutOfMemory, |
2780 | 0 | "Out of memory when allocating buffers"); |
2781 | 0 | return CE_Failure; |
2782 | 0 | } |
2783 | | |
2784 | | /* -------------------------------------------------------------------- */ |
2785 | | /* Load data. */ |
2786 | | /* -------------------------------------------------------------------- */ |
2787 | 0 | psExtraArg->bFloatingPointWindowValidity = TRUE; |
2788 | 0 | psExtraArg->dfXOff = dfReqXOff; |
2789 | 0 | psExtraArg->dfYOff = dfReqYOff; |
2790 | 0 | psExtraArg->dfXSize = dfReqXSize; |
2791 | 0 | psExtraArg->dfYSize = dfReqYSize; |
2792 | 0 | if (psExtraArgIn) |
2793 | 0 | { |
2794 | 0 | psExtraArg->pfnProgress = psExtraArgIn->pfnProgress; |
2795 | 0 | psExtraArg->pProgressData = psExtraArgIn->pProgressData; |
2796 | 0 | } |
2797 | |
|
2798 | 0 | if (l_band->RasterIO(GF_Read, nReqXOff, nReqYOff, nReqXSize, nReqYSize, |
2799 | 0 | pabyWrkBuffer, nOutXSize, nOutYSize, eSrcBandDT, 0, 0, |
2800 | 0 | psExtraArg) != CE_None) |
2801 | 0 | { |
2802 | 0 | return CE_Failure; |
2803 | 0 | } |
2804 | | |
2805 | 0 | if (l_band->GetMaskBand()->RasterIO( |
2806 | 0 | GF_Read, nReqXOff, nReqYOff, nReqXSize, nReqYSize, |
2807 | 0 | oWorkingState.m_abyWrkBufferMask.data(), nOutXSize, nOutYSize, |
2808 | 0 | eSrcMaskBandDT, 0, 0, psExtraArg) != CE_None) |
2809 | 0 | { |
2810 | 0 | return CE_Failure; |
2811 | 0 | } |
2812 | | |
2813 | | /* -------------------------------------------------------------------- */ |
2814 | | /* Do the processing. */ |
2815 | | /* -------------------------------------------------------------------- */ |
2816 | | |
2817 | 0 | GByte *const pabyOut = static_cast<GByte *>(pData) + |
2818 | 0 | nPixelSpace * nOutXOff + |
2819 | 0 | static_cast<GPtrDiff_t>(nLineSpace) * nOutYOff; |
2820 | 0 | if (bByteOptim) |
2821 | 0 | { |
2822 | | // Special case when everything fits on Byte |
2823 | 0 | const GByte nMaskValueThreshold = |
2824 | 0 | static_cast<GByte>(m_dfMaskValueThreshold); |
2825 | 0 | const GByte nNoDataValue = static_cast<GByte>(m_dfNoDataValue); |
2826 | 0 | const GByte nRemappedValue = static_cast<GByte>(dfRemappedValue); |
2827 | 0 | size_t nSrcIdx = 0; |
2828 | 0 | for (int iY = 0; iY < nOutYSize; iY++) |
2829 | 0 | { |
2830 | 0 | GSpacing nDstOffset = iY * nLineSpace; |
2831 | 0 | for (int iX = 0; iX < nOutXSize; iX++) |
2832 | 0 | { |
2833 | 0 | const GByte nMaskVal = |
2834 | 0 | oWorkingState.m_abyWrkBufferMask[nSrcIdx]; |
2835 | 0 | if (nMaskVal <= nMaskValueThreshold) |
2836 | 0 | { |
2837 | 0 | pabyOut[static_cast<GPtrDiff_t>(nDstOffset)] = nNoDataValue; |
2838 | 0 | } |
2839 | 0 | else |
2840 | 0 | { |
2841 | 0 | if (pabyWrkBuffer[nSrcIdx] == nNoDataValue) |
2842 | 0 | { |
2843 | 0 | pabyOut[static_cast<GPtrDiff_t>(nDstOffset)] = |
2844 | 0 | nRemappedValue; |
2845 | 0 | } |
2846 | 0 | else |
2847 | 0 | { |
2848 | 0 | pabyOut[static_cast<GPtrDiff_t>(nDstOffset)] = |
2849 | 0 | pabyWrkBuffer[nSrcIdx]; |
2850 | 0 | } |
2851 | 0 | } |
2852 | 0 | nDstOffset += nPixelSpace; |
2853 | 0 | nSrcIdx++; |
2854 | 0 | } |
2855 | 0 | } |
2856 | 0 | } |
2857 | 0 | else |
2858 | 0 | { |
2859 | 0 | size_t nSrcIdx = 0; |
2860 | 0 | double dfMaskVal = 0; |
2861 | 0 | const int nBufDTSize = GDALGetDataTypeSizeBytes(eBufType); |
2862 | 0 | std::vector<GByte> abyDstNoData(nBufDTSize); |
2863 | 0 | GDALCopyWords(&m_dfNoDataValue, GDT_Float64, 0, abyDstNoData.data(), |
2864 | 0 | eBufType, 0, 1); |
2865 | 0 | std::vector<GByte> abyRemappedValue(nBufDTSize); |
2866 | 0 | GDALCopyWords(&dfRemappedValue, GDT_Float64, 0, abyRemappedValue.data(), |
2867 | 0 | eBufType, 0, 1); |
2868 | 0 | for (int iY = 0; iY < nOutYSize; iY++) |
2869 | 0 | { |
2870 | 0 | GSpacing nDstOffset = iY * nLineSpace; |
2871 | 0 | for (int iX = 0; iX < nOutXSize; iX++) |
2872 | 0 | { |
2873 | 0 | if (eSrcMaskBandDT == GDT_UInt8) |
2874 | 0 | { |
2875 | 0 | dfMaskVal = oWorkingState.m_abyWrkBufferMask[nSrcIdx]; |
2876 | 0 | } |
2877 | 0 | else |
2878 | 0 | { |
2879 | 0 | GDALCopyWords(oWorkingState.m_abyWrkBufferMask.data() + |
2880 | 0 | nSrcIdx * nSrcMaskBandDTSize, |
2881 | 0 | eSrcMaskBandDT, 0, &dfMaskVal, GDT_Float64, 0, |
2882 | 0 | 1); |
2883 | 0 | } |
2884 | 0 | void *const pDst = |
2885 | 0 | pabyOut + static_cast<GPtrDiff_t>(nDstOffset); |
2886 | 0 | if (!(dfMaskVal > m_dfMaskValueThreshold)) |
2887 | 0 | { |
2888 | 0 | memcpy(pDst, abyDstNoData.data(), nBufDTSize); |
2889 | 0 | } |
2890 | 0 | else |
2891 | 0 | { |
2892 | 0 | const void *const pSrc = |
2893 | 0 | pabyWrkBuffer + nSrcIdx * nSrcBandDTSize; |
2894 | 0 | if (eSrcBandDT == eBufType) |
2895 | 0 | { |
2896 | | // coverity[overrun-buffer-arg] |
2897 | 0 | memcpy(pDst, pSrc, nBufDTSize); |
2898 | 0 | } |
2899 | 0 | else |
2900 | 0 | { |
2901 | 0 | GDALCopyWords(pSrc, eSrcBandDT, 0, pDst, eBufType, 0, |
2902 | 0 | 1); |
2903 | 0 | } |
2904 | 0 | if (memcmp(pDst, abyDstNoData.data(), nBufDTSize) == 0) |
2905 | 0 | memcpy(pDst, abyRemappedValue.data(), nBufDTSize); |
2906 | 0 | } |
2907 | 0 | nDstOffset += nPixelSpace; |
2908 | 0 | nSrcIdx++; |
2909 | 0 | } |
2910 | 0 | } |
2911 | 0 | } |
2912 | |
|
2913 | 0 | if (psExtraArg->pfnProgress) |
2914 | 0 | psExtraArg->pfnProgress(1.0, "", psExtraArg->pProgressData); |
2915 | |
|
2916 | 0 | return CE_None; |
2917 | 0 | } |
2918 | | |
2919 | | /************************************************************************/ |
2920 | | /* GetMinimum() */ |
2921 | | /************************************************************************/ |
2922 | | |
2923 | | double VRTNoDataFromMaskSource::GetMinimum(int /* nXSize */, int /* nYSize */, |
2924 | | int *pbSuccess) |
2925 | 0 | { |
2926 | 0 | *pbSuccess = FALSE; |
2927 | 0 | return 0.0; |
2928 | 0 | } |
2929 | | |
2930 | | /************************************************************************/ |
2931 | | /* GetMaximum() */ |
2932 | | /************************************************************************/ |
2933 | | |
2934 | | double VRTNoDataFromMaskSource::GetMaximum(int /* nXSize */, int /* nYSize */, |
2935 | | int *pbSuccess) |
2936 | 0 | { |
2937 | 0 | *pbSuccess = FALSE; |
2938 | 0 | return 0.0; |
2939 | 0 | } |
2940 | | |
2941 | | /************************************************************************/ |
2942 | | /* GetHistogram() */ |
2943 | | /************************************************************************/ |
2944 | | |
2945 | | CPLErr VRTNoDataFromMaskSource::GetHistogram( |
2946 | | int /* nXSize */, int /* nYSize */, double /* dfMin */, double /* dfMax */, |
2947 | | int /* nBuckets */, GUIntBig * /* panHistogram */, |
2948 | | int /* bIncludeOutOfRange */, int /* bApproxOK */, |
2949 | | GDALProgressFunc /* pfnProgress */, void * /* pProgressData */) |
2950 | 0 | { |
2951 | 0 | return CE_Failure; |
2952 | 0 | } |
2953 | | |
2954 | | /************************************************************************/ |
2955 | | /* ==================================================================== */ |
2956 | | /* VRTComplexSource */ |
2957 | | /* ==================================================================== */ |
2958 | | /************************************************************************/ |
2959 | | |
2960 | | /************************************************************************/ |
2961 | | /* VRTComplexSource() */ |
2962 | | /************************************************************************/ |
2963 | | |
2964 | | VRTComplexSource::VRTComplexSource(const VRTComplexSource *poSrcSource, |
2965 | | double dfXDstRatio, double dfYDstRatio) |
2966 | 0 | : VRTSimpleSource(poSrcSource, dfXDstRatio, dfYDstRatio), |
2967 | 0 | m_nProcessingFlags(poSrcSource->m_nProcessingFlags), |
2968 | 0 | m_dfNoDataValue(poSrcSource->m_dfNoDataValue), |
2969 | 0 | m_osNoDataValueOri(poSrcSource->m_osNoDataValueOri), |
2970 | 0 | m_dfScaleOff(poSrcSource->m_dfScaleOff), |
2971 | 0 | m_dfScaleRatio(poSrcSource->m_dfScaleRatio), |
2972 | 0 | m_bSrcMinMaxDefined(poSrcSource->m_bSrcMinMaxDefined), |
2973 | 0 | m_dfSrcMin(poSrcSource->m_dfSrcMin), m_dfSrcMax(poSrcSource->m_dfSrcMax), |
2974 | 0 | m_dfDstMin(poSrcSource->m_dfDstMin), m_dfDstMax(poSrcSource->m_dfDstMax), |
2975 | 0 | m_dfExponent(poSrcSource->m_dfExponent), m_bClip(poSrcSource->m_bClip), |
2976 | 0 | m_nColorTableComponent(poSrcSource->m_nColorTableComponent), |
2977 | 0 | m_adfLUTInputs(poSrcSource->m_adfLUTInputs), |
2978 | 0 | m_adfLUTOutputs(poSrcSource->m_adfLUTOutputs) |
2979 | 0 | { |
2980 | 0 | } |
2981 | | |
2982 | | /************************************************************************/ |
2983 | | /* GetTypeStatic() */ |
2984 | | /************************************************************************/ |
2985 | | |
2986 | | const char *VRTComplexSource::GetTypeStatic() |
2987 | 0 | { |
2988 | 0 | static const char *TYPE = "ComplexSource"; |
2989 | 0 | return TYPE; |
2990 | 0 | } |
2991 | | |
2992 | | /************************************************************************/ |
2993 | | /* GetType() */ |
2994 | | /************************************************************************/ |
2995 | | |
2996 | | const char *VRTComplexSource::GetType() const |
2997 | 0 | { |
2998 | 0 | return GetTypeStatic(); |
2999 | 0 | } |
3000 | | |
3001 | | /************************************************************************/ |
3002 | | /* SetNoDataValue() */ |
3003 | | /************************************************************************/ |
3004 | | |
3005 | | void VRTComplexSource::SetNoDataValue(double dfNewNoDataValue) |
3006 | | |
3007 | 0 | { |
3008 | 0 | if (dfNewNoDataValue == VRT_NODATA_UNSET) |
3009 | 0 | { |
3010 | 0 | m_nProcessingFlags &= ~PROCESSING_FLAG_NODATA; |
3011 | 0 | m_dfNoDataValue = VRT_NODATA_UNSET; |
3012 | 0 | return; |
3013 | 0 | } |
3014 | | |
3015 | 0 | m_nProcessingFlags |= PROCESSING_FLAG_NODATA; |
3016 | 0 | m_dfNoDataValue = dfNewNoDataValue; |
3017 | 0 | } |
3018 | | |
3019 | | /************************************************************************/ |
3020 | | /* GetAdjustedNoDataValue() */ |
3021 | | /************************************************************************/ |
3022 | | |
3023 | | double VRTComplexSource::GetAdjustedNoDataValue() const |
3024 | 0 | { |
3025 | 0 | if ((m_nProcessingFlags & PROCESSING_FLAG_NODATA) != 0) |
3026 | 0 | { |
3027 | 0 | auto l_band = GetRasterBand(); |
3028 | 0 | if (l_band && l_band->GetRasterDataType() == GDT_Float32) |
3029 | 0 | { |
3030 | 0 | return GDALAdjustNoDataCloseToFloatMax(m_dfNoDataValue); |
3031 | 0 | } |
3032 | 0 | } |
3033 | 0 | return m_dfNoDataValue; |
3034 | 0 | } |
3035 | | |
3036 | | /************************************************************************/ |
3037 | | /* SerializeToXML() */ |
3038 | | /************************************************************************/ |
3039 | | |
3040 | | CPLXMLNode *VRTComplexSource::SerializeToXML(const char *pszVRTPath) |
3041 | | |
3042 | 0 | { |
3043 | 0 | CPLXMLNode *psSrc = VRTSimpleSource::SerializeToXML(pszVRTPath); |
3044 | |
|
3045 | 0 | if (psSrc == nullptr) |
3046 | 0 | return nullptr; |
3047 | | |
3048 | 0 | CPLFree(psSrc->pszValue); |
3049 | 0 | psSrc->pszValue = CPLStrdup(GetTypeStatic()); |
3050 | |
|
3051 | 0 | if ((m_nProcessingFlags & PROCESSING_FLAG_USE_MASK_BAND) != 0) |
3052 | 0 | { |
3053 | 0 | CPLSetXMLValue(psSrc, "UseMaskBand", "true"); |
3054 | 0 | } |
3055 | |
|
3056 | 0 | if ((m_nProcessingFlags & PROCESSING_FLAG_NODATA) != 0) |
3057 | 0 | { |
3058 | 0 | if (!m_osNoDataValueOri.empty() && GetRasterBandNoOpen() == nullptr) |
3059 | 0 | { |
3060 | 0 | CPLSetXMLValue(psSrc, "NODATA", m_osNoDataValueOri.c_str()); |
3061 | 0 | } |
3062 | 0 | else |
3063 | 0 | { |
3064 | 0 | GDALDataType eBandDT = GDT_Unknown; |
3065 | 0 | double dfNoDataValue = m_dfNoDataValue; |
3066 | 0 | const auto kMaxFloat = std::numeric_limits<float>::max(); |
3067 | 0 | if (std::fabs(std::fabs(m_dfNoDataValue) - kMaxFloat) < |
3068 | 0 | 1e-10 * kMaxFloat) |
3069 | 0 | { |
3070 | 0 | auto l_band = GetRasterBand(); |
3071 | 0 | if (l_band) |
3072 | 0 | { |
3073 | 0 | dfNoDataValue = GetAdjustedNoDataValue(); |
3074 | 0 | eBandDT = l_band->GetRasterDataType(); |
3075 | 0 | } |
3076 | 0 | } |
3077 | 0 | CPLSetXMLValue( |
3078 | 0 | psSrc, "NODATA", |
3079 | 0 | VRTSerializeNoData(dfNoDataValue, eBandDT, 18).c_str()); |
3080 | 0 | } |
3081 | 0 | } |
3082 | |
|
3083 | 0 | if ((m_nProcessingFlags & PROCESSING_FLAG_SCALING_LINEAR) != 0) |
3084 | 0 | { |
3085 | 0 | CPLSetXMLValue(psSrc, "ScaleOffset", CPLSPrintf("%g", m_dfScaleOff)); |
3086 | 0 | CPLSetXMLValue(psSrc, "ScaleRatio", CPLSPrintf("%g", m_dfScaleRatio)); |
3087 | 0 | } |
3088 | 0 | else if ((m_nProcessingFlags & PROCESSING_FLAG_SCALING_EXPONENTIAL) != 0) |
3089 | 0 | { |
3090 | 0 | CPLSetXMLValue(psSrc, "Exponent", CPLSPrintf("%g", m_dfExponent)); |
3091 | 0 | if (m_bSrcMinMaxDefined) |
3092 | 0 | { |
3093 | 0 | CPLSetXMLValue(psSrc, "SrcMin", CPLSPrintf("%g", m_dfSrcMin)); |
3094 | 0 | CPLSetXMLValue(psSrc, "SrcMax", CPLSPrintf("%g", m_dfSrcMax)); |
3095 | 0 | } |
3096 | 0 | CPLSetXMLValue(psSrc, "DstMin", CPLSPrintf("%g", m_dfDstMin)); |
3097 | 0 | CPLSetXMLValue(psSrc, "DstMax", CPLSPrintf("%g", m_dfDstMax)); |
3098 | 0 | CPLSetXMLValue(psSrc, "Clip", m_bClip ? "true" : "false"); |
3099 | 0 | } |
3100 | |
|
3101 | 0 | if (!m_adfLUTInputs.empty()) |
3102 | 0 | { |
3103 | | // Make sure we print with sufficient precision to address really close |
3104 | | // entries (#6422). |
3105 | 0 | CPLString osLUT; |
3106 | 0 | if (m_adfLUTInputs.size() >= 2 && |
3107 | 0 | CPLString().Printf("%g", m_adfLUTInputs[0]) == |
3108 | 0 | CPLString().Printf("%g", m_adfLUTInputs[1])) |
3109 | 0 | { |
3110 | 0 | osLUT = CPLString().Printf("%.17g:%g", m_adfLUTInputs[0], |
3111 | 0 | m_adfLUTOutputs[0]); |
3112 | 0 | } |
3113 | 0 | else |
3114 | 0 | { |
3115 | 0 | osLUT = CPLString().Printf("%g:%g", m_adfLUTInputs[0], |
3116 | 0 | m_adfLUTOutputs[0]); |
3117 | 0 | } |
3118 | 0 | for (size_t i = 1; i < m_adfLUTInputs.size(); i++) |
3119 | 0 | { |
3120 | 0 | if (CPLString().Printf("%g", m_adfLUTInputs[i]) == |
3121 | 0 | CPLString().Printf("%g", m_adfLUTInputs[i - 1]) || |
3122 | 0 | (i + 1 < m_adfLUTInputs.size() && |
3123 | 0 | CPLString().Printf("%g", m_adfLUTInputs[i]) == |
3124 | 0 | CPLString().Printf("%g", m_adfLUTInputs[i + 1]))) |
3125 | 0 | { |
3126 | | // TODO(schwehr): An explanation of the 18 would be helpful. |
3127 | | // Can someone distill the issue down to a quick comment? |
3128 | | // https://trac.osgeo.org/gdal/ticket/6422 |
3129 | 0 | osLUT += CPLString().Printf(",%.17g:%g", m_adfLUTInputs[i], |
3130 | 0 | m_adfLUTOutputs[i]); |
3131 | 0 | } |
3132 | 0 | else |
3133 | 0 | { |
3134 | 0 | osLUT += CPLString().Printf(",%g:%g", m_adfLUTInputs[i], |
3135 | 0 | m_adfLUTOutputs[i]); |
3136 | 0 | } |
3137 | 0 | } |
3138 | 0 | CPLSetXMLValue(psSrc, "LUT", osLUT); |
3139 | 0 | } |
3140 | |
|
3141 | 0 | if (m_nColorTableComponent) |
3142 | 0 | { |
3143 | 0 | CPLSetXMLValue(psSrc, "ColorTableComponent", |
3144 | 0 | CPLSPrintf("%d", m_nColorTableComponent)); |
3145 | 0 | } |
3146 | |
|
3147 | 0 | return psSrc; |
3148 | 0 | } |
3149 | | |
3150 | | /************************************************************************/ |
3151 | | /* XMLInit() */ |
3152 | | /************************************************************************/ |
3153 | | |
3154 | | CPLErr VRTComplexSource::XMLInit(const CPLXMLNode *psSrc, |
3155 | | const char *pszVRTPath, |
3156 | | VRTMapSharedResources &oMapSharedSources) |
3157 | | |
3158 | 0 | { |
3159 | | /* -------------------------------------------------------------------- */ |
3160 | | /* Do base initialization. */ |
3161 | | /* -------------------------------------------------------------------- */ |
3162 | 0 | { |
3163 | 0 | const CPLErr eErr = |
3164 | 0 | VRTSimpleSource::XMLInit(psSrc, pszVRTPath, oMapSharedSources); |
3165 | 0 | if (eErr != CE_None) |
3166 | 0 | return eErr; |
3167 | 0 | } |
3168 | | |
3169 | | /* -------------------------------------------------------------------- */ |
3170 | | /* Complex parameters. */ |
3171 | | /* -------------------------------------------------------------------- */ |
3172 | 0 | const char *pszScaleOffset = CPLGetXMLValue(psSrc, "ScaleOffset", nullptr); |
3173 | 0 | const char *pszScaleRatio = CPLGetXMLValue(psSrc, "ScaleRatio", nullptr); |
3174 | 0 | if (pszScaleOffset || pszScaleRatio) |
3175 | 0 | { |
3176 | 0 | m_nProcessingFlags |= PROCESSING_FLAG_SCALING_LINEAR; |
3177 | 0 | if (pszScaleOffset) |
3178 | 0 | m_dfScaleOff = CPLAtof(pszScaleOffset); |
3179 | 0 | if (pszScaleRatio) |
3180 | 0 | m_dfScaleRatio = CPLAtof(pszScaleRatio); |
3181 | 0 | } |
3182 | 0 | else if (CPLGetXMLValue(psSrc, "Exponent", nullptr) != nullptr && |
3183 | 0 | CPLGetXMLValue(psSrc, "DstMin", nullptr) != nullptr && |
3184 | 0 | CPLGetXMLValue(psSrc, "DstMax", nullptr) != nullptr) |
3185 | 0 | { |
3186 | 0 | m_nProcessingFlags |= PROCESSING_FLAG_SCALING_EXPONENTIAL; |
3187 | 0 | m_dfExponent = CPLAtof(CPLGetXMLValue(psSrc, "Exponent", "1.0")); |
3188 | |
|
3189 | 0 | const char *pszSrcMin = CPLGetXMLValue(psSrc, "SrcMin", nullptr); |
3190 | 0 | const char *pszSrcMax = CPLGetXMLValue(psSrc, "SrcMax", nullptr); |
3191 | 0 | if (pszSrcMin && pszSrcMax) |
3192 | 0 | { |
3193 | 0 | m_dfSrcMin = CPLAtof(pszSrcMin); |
3194 | 0 | m_dfSrcMax = CPLAtof(pszSrcMax); |
3195 | 0 | m_bSrcMinMaxDefined = true; |
3196 | 0 | } |
3197 | |
|
3198 | 0 | m_dfDstMin = CPLAtof(CPLGetXMLValue(psSrc, "DstMin", "0.0")); |
3199 | 0 | m_dfDstMax = CPLAtof(CPLGetXMLValue(psSrc, "DstMax", "0.0")); |
3200 | 0 | m_bClip = CPLTestBool(CPLGetXMLValue(psSrc, "Clip", "true")); |
3201 | 0 | } |
3202 | |
|
3203 | 0 | if (const char *pszNODATA = CPLGetXMLValue(psSrc, "NODATA", nullptr)) |
3204 | 0 | { |
3205 | 0 | m_nProcessingFlags |= PROCESSING_FLAG_NODATA; |
3206 | 0 | m_osNoDataValueOri = pszNODATA; |
3207 | 0 | m_dfNoDataValue = CPLAtofM(m_osNoDataValueOri.c_str()); |
3208 | 0 | } |
3209 | |
|
3210 | 0 | const char *pszUseMaskBand = CPLGetXMLValue(psSrc, "UseMaskBand", nullptr); |
3211 | 0 | if (pszUseMaskBand && CPLTestBool(pszUseMaskBand)) |
3212 | 0 | { |
3213 | 0 | m_nProcessingFlags |= PROCESSING_FLAG_USE_MASK_BAND; |
3214 | 0 | } |
3215 | |
|
3216 | 0 | const char *pszLUT = CPLGetXMLValue(psSrc, "LUT", nullptr); |
3217 | 0 | if (pszLUT) |
3218 | 0 | { |
3219 | 0 | const CPLStringList aosValues( |
3220 | 0 | CSLTokenizeString2(pszLUT, ",:", CSLT_ALLOWEMPTYTOKENS)); |
3221 | |
|
3222 | 0 | const int nLUTItemCount = aosValues.size() / 2; |
3223 | 0 | try |
3224 | 0 | { |
3225 | 0 | m_adfLUTInputs.resize(nLUTItemCount); |
3226 | 0 | m_adfLUTOutputs.resize(nLUTItemCount); |
3227 | 0 | } |
3228 | 0 | catch (const std::bad_alloc &e) |
3229 | 0 | { |
3230 | 0 | CPLError(CE_Failure, CPLE_OutOfMemory, "%s", e.what()); |
3231 | 0 | m_adfLUTInputs.clear(); |
3232 | 0 | m_adfLUTOutputs.clear(); |
3233 | 0 | return CE_Failure; |
3234 | 0 | } |
3235 | | |
3236 | 0 | for (int nIndex = 0; nIndex < nLUTItemCount; nIndex++) |
3237 | 0 | { |
3238 | 0 | m_adfLUTInputs[nIndex] = CPLAtof(aosValues[nIndex * 2]); |
3239 | 0 | m_adfLUTOutputs[nIndex] = CPLAtof(aosValues[nIndex * 2 + 1]); |
3240 | | |
3241 | | // Enforce the requirement that the LUT input array is |
3242 | | // monotonically non-decreasing. |
3243 | 0 | if (std::isnan(m_adfLUTInputs[nIndex]) && nIndex != 0) |
3244 | 0 | { |
3245 | 0 | CPLError(CE_Failure, CPLE_AppDefined, |
3246 | 0 | "A Not-A-Number (NaN) source value should be the " |
3247 | 0 | "first one of the LUT."); |
3248 | 0 | m_adfLUTInputs.clear(); |
3249 | 0 | m_adfLUTOutputs.clear(); |
3250 | 0 | return CE_Failure; |
3251 | 0 | } |
3252 | 0 | else if (nIndex > 0 && |
3253 | 0 | m_adfLUTInputs[nIndex] < m_adfLUTInputs[nIndex - 1]) |
3254 | 0 | { |
3255 | 0 | CPLError(CE_Failure, CPLE_AppDefined, |
3256 | 0 | "Source values of the LUT are not listed in a " |
3257 | 0 | "monotonically non-decreasing order"); |
3258 | 0 | m_adfLUTInputs.clear(); |
3259 | 0 | m_adfLUTOutputs.clear(); |
3260 | 0 | return CE_Failure; |
3261 | 0 | } |
3262 | 0 | } |
3263 | | |
3264 | 0 | m_nProcessingFlags |= PROCESSING_FLAG_LUT; |
3265 | 0 | } |
3266 | | |
3267 | 0 | const char *pszColorTableComponent = |
3268 | 0 | CPLGetXMLValue(psSrc, "ColorTableComponent", nullptr); |
3269 | 0 | if (pszColorTableComponent) |
3270 | 0 | { |
3271 | 0 | m_nColorTableComponent = atoi(pszColorTableComponent); |
3272 | 0 | m_nProcessingFlags |= PROCESSING_FLAG_COLOR_TABLE_EXPANSION; |
3273 | 0 | } |
3274 | |
|
3275 | 0 | return CE_None; |
3276 | 0 | } |
3277 | | |
3278 | | /************************************************************************/ |
3279 | | /* SetLUT() */ |
3280 | | /************************************************************************/ |
3281 | | |
3282 | | void VRTComplexSource::SetLUT(const std::vector<double> &adfLUTInputs, |
3283 | | const std::vector<double> &adfLUTOutputs) |
3284 | 0 | { |
3285 | 0 | m_adfLUTInputs = adfLUTInputs; |
3286 | 0 | m_adfLUTOutputs = adfLUTOutputs; |
3287 | 0 | m_nProcessingFlags |= PROCESSING_FLAG_LUT; |
3288 | 0 | } |
3289 | | |
3290 | | /************************************************************************/ |
3291 | | /* LookupValue() */ |
3292 | | /************************************************************************/ |
3293 | | |
3294 | | double VRTComplexSource::LookupValue(double dfInput) |
3295 | 0 | { |
3296 | 0 | auto beginIter = m_adfLUTInputs.begin(); |
3297 | 0 | auto endIter = m_adfLUTInputs.end(); |
3298 | 0 | size_t offset = 0; |
3299 | 0 | if (std::isnan(m_adfLUTInputs[0])) |
3300 | 0 | { |
3301 | 0 | if (std::isnan(dfInput) || m_adfLUTInputs.size() == 1) |
3302 | 0 | return m_adfLUTOutputs[0]; |
3303 | 0 | ++beginIter; |
3304 | 0 | offset = 1; |
3305 | 0 | } |
3306 | | |
3307 | | // Find the index of the first element in the LUT input array that |
3308 | | // is not smaller than the input value. |
3309 | 0 | const size_t i = |
3310 | 0 | offset + |
3311 | 0 | std::distance(beginIter, std::lower_bound(beginIter, endIter, dfInput)); |
3312 | |
|
3313 | 0 | if (i == offset) |
3314 | 0 | return m_adfLUTOutputs[offset]; |
3315 | | |
3316 | | // If the index is beyond the end of the LUT input array, the input |
3317 | | // value is larger than all the values in the array. |
3318 | 0 | if (i == m_adfLUTInputs.size()) |
3319 | 0 | return m_adfLUTOutputs.back(); |
3320 | | |
3321 | 0 | if (m_adfLUTInputs[i] == dfInput) |
3322 | 0 | return m_adfLUTOutputs[i]; |
3323 | | |
3324 | | // Otherwise, interpolate. |
3325 | 0 | return m_adfLUTOutputs[i - 1] + |
3326 | 0 | (dfInput - m_adfLUTInputs[i - 1]) * |
3327 | 0 | ((m_adfLUTOutputs[i] - m_adfLUTOutputs[i - 1]) / |
3328 | 0 | (m_adfLUTInputs[i] - m_adfLUTInputs[i - 1])); |
3329 | 0 | } |
3330 | | |
3331 | | /************************************************************************/ |
3332 | | /* SetLinearScaling() */ |
3333 | | /************************************************************************/ |
3334 | | |
3335 | | void VRTComplexSource::SetLinearScaling(double dfOffset, double dfScale) |
3336 | 0 | { |
3337 | 0 | m_nProcessingFlags &= ~PROCESSING_FLAG_SCALING_EXPONENTIAL; |
3338 | 0 | m_nProcessingFlags |= PROCESSING_FLAG_SCALING_LINEAR; |
3339 | 0 | m_dfScaleOff = dfOffset; |
3340 | 0 | m_dfScaleRatio = dfScale; |
3341 | 0 | } |
3342 | | |
3343 | | /************************************************************************/ |
3344 | | /* SetPowerScaling() */ |
3345 | | /************************************************************************/ |
3346 | | |
3347 | | void VRTComplexSource::SetPowerScaling(double dfExponentIn, double dfSrcMinIn, |
3348 | | double dfSrcMaxIn, double dfDstMinIn, |
3349 | | double dfDstMaxIn, bool bClip) |
3350 | 0 | { |
3351 | 0 | m_nProcessingFlags &= ~PROCESSING_FLAG_SCALING_LINEAR; |
3352 | 0 | m_nProcessingFlags |= PROCESSING_FLAG_SCALING_EXPONENTIAL; |
3353 | 0 | m_dfExponent = dfExponentIn; |
3354 | 0 | m_dfSrcMin = dfSrcMinIn; |
3355 | 0 | m_dfSrcMax = dfSrcMaxIn; |
3356 | 0 | m_dfDstMin = dfDstMinIn; |
3357 | 0 | m_dfDstMax = dfDstMaxIn; |
3358 | 0 | m_bSrcMinMaxDefined = true; |
3359 | 0 | m_bClip = bClip; |
3360 | 0 | } |
3361 | | |
3362 | | /************************************************************************/ |
3363 | | /* SetColorTableComponent() */ |
3364 | | /************************************************************************/ |
3365 | | |
3366 | | void VRTComplexSource::SetColorTableComponent(int nComponent) |
3367 | 0 | { |
3368 | 0 | m_nProcessingFlags |= PROCESSING_FLAG_COLOR_TABLE_EXPANSION; |
3369 | 0 | m_nColorTableComponent = nComponent; |
3370 | 0 | } |
3371 | | |
3372 | | /************************************************************************/ |
3373 | | /* RasterIO() */ |
3374 | | /************************************************************************/ |
3375 | | |
3376 | | CPLErr VRTComplexSource::RasterIO(GDALDataType eVRTBandDataType, int nXOff, |
3377 | | int nYOff, int nXSize, int nYSize, |
3378 | | void *pData, int nBufXSize, int nBufYSize, |
3379 | | GDALDataType eBufType, GSpacing nPixelSpace, |
3380 | | GSpacing nLineSpace, |
3381 | | GDALRasterIOExtraArg *psExtraArgIn, |
3382 | | WorkingState &oWorkingState) |
3383 | | |
3384 | 0 | { |
3385 | 0 | GDALRasterIOExtraArg sExtraArg; |
3386 | 0 | INIT_RASTERIO_EXTRA_ARG(sExtraArg); |
3387 | 0 | GDALRasterIOExtraArg *psExtraArg = &sExtraArg; |
3388 | |
|
3389 | 0 | double dfXOff = nXOff; |
3390 | 0 | double dfYOff = nYOff; |
3391 | 0 | double dfXSize = nXSize; |
3392 | 0 | double dfYSize = nYSize; |
3393 | 0 | if (psExtraArgIn != nullptr && psExtraArgIn->bFloatingPointWindowValidity) |
3394 | 0 | { |
3395 | 0 | dfXOff = psExtraArgIn->dfXOff; |
3396 | 0 | dfYOff = psExtraArgIn->dfYOff; |
3397 | 0 | dfXSize = psExtraArgIn->dfXSize; |
3398 | 0 | dfYSize = psExtraArgIn->dfYSize; |
3399 | 0 | } |
3400 | | |
3401 | | // The window we will actually request from the source raster band. |
3402 | 0 | double dfReqXOff = 0.0; |
3403 | 0 | double dfReqYOff = 0.0; |
3404 | 0 | double dfReqXSize = 0.0; |
3405 | 0 | double dfReqYSize = 0.0; |
3406 | 0 | int nReqXOff = 0; |
3407 | 0 | int nReqYOff = 0; |
3408 | 0 | int nReqXSize = 0; |
3409 | 0 | int nReqYSize = 0; |
3410 | | |
3411 | | // The window we will actual set _within_ the pData buffer. |
3412 | 0 | int nOutXOff = 0; |
3413 | 0 | int nOutYOff = 0; |
3414 | 0 | int nOutXSize = 0; |
3415 | 0 | int nOutYSize = 0; |
3416 | |
|
3417 | 0 | if (!m_osResampling.empty()) |
3418 | 0 | { |
3419 | 0 | psExtraArg->eResampleAlg = GDALRasterIOGetResampleAlg(m_osResampling); |
3420 | 0 | } |
3421 | 0 | else if (psExtraArgIn != nullptr) |
3422 | 0 | { |
3423 | 0 | psExtraArg->eResampleAlg = psExtraArgIn->eResampleAlg; |
3424 | 0 | } |
3425 | 0 | if (psExtraArgIn) |
3426 | 0 | psExtraArg->bOperateInBufType = |
3427 | 0 | GDAL_GET_OPERATE_IN_BUF_TYPE(*psExtraArgIn); |
3428 | |
|
3429 | 0 | bool bError = false; |
3430 | 0 | if (!GetSrcDstWindow(dfXOff, dfYOff, dfXSize, dfYSize, nBufXSize, nBufYSize, |
3431 | 0 | psExtraArg->eResampleAlg, &dfReqXOff, &dfReqYOff, |
3432 | 0 | &dfReqXSize, &dfReqYSize, &nReqXOff, &nReqYOff, |
3433 | 0 | &nReqXSize, &nReqYSize, &nOutXOff, &nOutYOff, |
3434 | 0 | &nOutXSize, &nOutYSize, bError)) |
3435 | 0 | { |
3436 | 0 | return bError ? CE_Failure : CE_None; |
3437 | 0 | } |
3438 | | #if DEBUG_VERBOSE |
3439 | | CPLDebug("VRT", |
3440 | | "nXOff=%d, nYOff=%d, nXSize=%d, nYSize=%d, nBufXSize=%d, " |
3441 | | "nBufYSize=%d,\n" |
3442 | | "dfReqXOff=%g, dfReqYOff=%g, dfReqXSize=%g, dfReqYSize=%g,\n" |
3443 | | "nReqXOff=%d, nReqYOff=%d, nReqXSize=%d, nReqYSize=%d,\n" |
3444 | | "nOutXOff=%d, nOutYOff=%d, nOutXSize=%d, nOutYSize=%d", |
3445 | | nXOff, nYOff, nXSize, nYSize, nBufXSize, nBufYSize, dfReqXOff, |
3446 | | dfReqYOff, dfReqXSize, dfReqYSize, nReqXOff, nReqYOff, nReqXSize, |
3447 | | nReqYSize, nOutXOff, nOutYOff, nOutXSize, nOutYSize); |
3448 | | #endif |
3449 | | |
3450 | 0 | auto poSourceBand = GetRasterBand(); |
3451 | 0 | if (!poSourceBand) |
3452 | 0 | return CE_Failure; |
3453 | | |
3454 | 0 | psExtraArg->bFloatingPointWindowValidity = TRUE; |
3455 | 0 | psExtraArg->dfXOff = dfReqXOff; |
3456 | 0 | psExtraArg->dfYOff = dfReqYOff; |
3457 | 0 | psExtraArg->dfXSize = dfReqXSize; |
3458 | 0 | psExtraArg->dfYSize = dfReqYSize; |
3459 | 0 | if (psExtraArgIn) |
3460 | 0 | { |
3461 | 0 | psExtraArg->pfnProgress = psExtraArgIn->pfnProgress; |
3462 | 0 | psExtraArg->pProgressData = psExtraArgIn->pProgressData; |
3463 | 0 | if (psExtraArgIn->nVersion >= 2) |
3464 | 0 | { |
3465 | 0 | psExtraArg->bUseOnlyThisScale = psExtraArgIn->bUseOnlyThisScale; |
3466 | 0 | } |
3467 | 0 | psExtraArg->bOperateInBufType = |
3468 | 0 | GDAL_GET_OPERATE_IN_BUF_TYPE(*psExtraArgIn); |
3469 | 0 | } |
3470 | |
|
3471 | 0 | GByte *const pabyOut = static_cast<GByte *>(pData) + |
3472 | 0 | nPixelSpace * nOutXOff + |
3473 | 0 | static_cast<GPtrDiff_t>(nLineSpace) * nOutYOff; |
3474 | 0 | const auto eSourceType = poSourceBand->GetRasterDataType(); |
3475 | 0 | if (m_nProcessingFlags == PROCESSING_FLAG_NODATA) |
3476 | 0 | { |
3477 | | // Optimization if doing only nodata processing |
3478 | 0 | if (eBufType != eSourceType && psExtraArg->bOperateInBufType) |
3479 | 0 | { |
3480 | 0 | if (eBufType == GDT_Float32 && |
3481 | 0 | GDALDataTypeUnion(eBufType, eSourceType) == eBufType) |
3482 | 0 | { |
3483 | 0 | return RasterIOProcessNoData<float, GDT_Float32>( |
3484 | 0 | poSourceBand, eVRTBandDataType, nReqXOff, nReqYOff, |
3485 | 0 | nReqXSize, nReqYSize, pabyOut, nOutXSize, nOutYSize, |
3486 | 0 | eBufType, nPixelSpace, nLineSpace, psExtraArg, |
3487 | 0 | oWorkingState); |
3488 | 0 | } |
3489 | 0 | else if (eBufType == GDT_Float64 && |
3490 | 0 | GDALDataTypeUnion(eBufType, eSourceType) == eBufType) |
3491 | 0 | { |
3492 | 0 | return RasterIOProcessNoData<double, GDT_Float64>( |
3493 | 0 | poSourceBand, eVRTBandDataType, nReqXOff, nReqYOff, |
3494 | 0 | nReqXSize, nReqYSize, pabyOut, nOutXSize, nOutYSize, |
3495 | 0 | eBufType, nPixelSpace, nLineSpace, psExtraArg, |
3496 | 0 | oWorkingState); |
3497 | 0 | } |
3498 | 0 | } |
3499 | 0 | else if (eSourceType == GDT_UInt8) |
3500 | 0 | { |
3501 | 0 | if (!GDALIsValueInRange<GByte>(m_dfNoDataValue)) |
3502 | 0 | { |
3503 | 0 | return VRTSimpleSource::RasterIO( |
3504 | 0 | eVRTBandDataType, nXOff, nYOff, nXSize, nYSize, pData, |
3505 | 0 | nBufXSize, nBufYSize, eBufType, nPixelSpace, nLineSpace, |
3506 | 0 | psExtraArgIn, oWorkingState); |
3507 | 0 | } |
3508 | 0 | return RasterIOProcessNoData<GByte, GDT_UInt8>( |
3509 | 0 | poSourceBand, eVRTBandDataType, nReqXOff, nReqYOff, nReqXSize, |
3510 | 0 | nReqYSize, pabyOut, nOutXSize, nOutYSize, eBufType, nPixelSpace, |
3511 | 0 | nLineSpace, psExtraArg, oWorkingState); |
3512 | 0 | } |
3513 | 0 | else if (eSourceType == GDT_Int16) |
3514 | 0 | { |
3515 | 0 | if (!GDALIsValueInRange<int16_t>(m_dfNoDataValue)) |
3516 | 0 | { |
3517 | 0 | return VRTSimpleSource::RasterIO( |
3518 | 0 | eVRTBandDataType, nXOff, nYOff, nXSize, nYSize, pData, |
3519 | 0 | nBufXSize, nBufYSize, eBufType, nPixelSpace, nLineSpace, |
3520 | 0 | psExtraArgIn, oWorkingState); |
3521 | 0 | } |
3522 | | |
3523 | 0 | return RasterIOProcessNoData<int16_t, GDT_Int16>( |
3524 | 0 | poSourceBand, eVRTBandDataType, nReqXOff, nReqYOff, nReqXSize, |
3525 | 0 | nReqYSize, pabyOut, nOutXSize, nOutYSize, eBufType, nPixelSpace, |
3526 | 0 | nLineSpace, psExtraArg, oWorkingState); |
3527 | 0 | } |
3528 | 0 | else if (eSourceType == GDT_UInt16) |
3529 | 0 | { |
3530 | 0 | if (!GDALIsValueInRange<uint16_t>(m_dfNoDataValue)) |
3531 | 0 | { |
3532 | 0 | return VRTSimpleSource::RasterIO( |
3533 | 0 | eVRTBandDataType, nXOff, nYOff, nXSize, nYSize, pData, |
3534 | 0 | nBufXSize, nBufYSize, eBufType, nPixelSpace, nLineSpace, |
3535 | 0 | psExtraArgIn, oWorkingState); |
3536 | 0 | } |
3537 | | |
3538 | 0 | return RasterIOProcessNoData<uint16_t, GDT_UInt16>( |
3539 | 0 | poSourceBand, eVRTBandDataType, nReqXOff, nReqYOff, nReqXSize, |
3540 | 0 | nReqYSize, pabyOut, nOutXSize, nOutYSize, eBufType, nPixelSpace, |
3541 | 0 | nLineSpace, psExtraArg, oWorkingState); |
3542 | 0 | } |
3543 | 0 | } |
3544 | | |
3545 | 0 | const bool bIsComplex = CPL_TO_BOOL(GDALDataTypeIsComplex(eBufType)); |
3546 | 0 | CPLErr eErr; |
3547 | | // For Int32, float32 isn't sufficiently precise as working data type |
3548 | 0 | if (eVRTBandDataType == GDT_CInt32 || eVRTBandDataType == GDT_CFloat64 || |
3549 | 0 | eVRTBandDataType == GDT_Int32 || eVRTBandDataType == GDT_UInt32 || |
3550 | 0 | eVRTBandDataType == GDT_Int64 || eVRTBandDataType == GDT_UInt64 || |
3551 | 0 | eVRTBandDataType == GDT_Float64 || eSourceType == GDT_Int32 || |
3552 | 0 | eSourceType == GDT_UInt32 || eSourceType == GDT_Int64 || |
3553 | 0 | eSourceType == GDT_UInt64) |
3554 | 0 | { |
3555 | 0 | eErr = RasterIOInternal<double>( |
3556 | 0 | poSourceBand, eVRTBandDataType, nReqXOff, nReqYOff, nReqXSize, |
3557 | 0 | nReqYSize, pabyOut, nOutXSize, nOutYSize, eBufType, nPixelSpace, |
3558 | 0 | nLineSpace, psExtraArg, bIsComplex ? GDT_CFloat64 : GDT_Float64, |
3559 | 0 | oWorkingState); |
3560 | 0 | } |
3561 | 0 | else |
3562 | 0 | { |
3563 | 0 | eErr = RasterIOInternal<float>( |
3564 | 0 | poSourceBand, eVRTBandDataType, nReqXOff, nReqYOff, nReqXSize, |
3565 | 0 | nReqYSize, pabyOut, nOutXSize, nOutYSize, eBufType, nPixelSpace, |
3566 | 0 | nLineSpace, psExtraArg, bIsComplex ? GDT_CFloat32 : GDT_Float32, |
3567 | 0 | oWorkingState); |
3568 | 0 | } |
3569 | |
|
3570 | 0 | if (psExtraArg->pfnProgress) |
3571 | 0 | psExtraArg->pfnProgress(1.0, "", psExtraArg->pProgressData); |
3572 | |
|
3573 | 0 | return eErr; |
3574 | 0 | } |
3575 | | |
3576 | | /************************************************************************/ |
3577 | | /* hasZeroByte() */ |
3578 | | /************************************************************************/ |
3579 | | |
3580 | | CPL_NOSANITIZE_UNSIGNED_INT_OVERFLOW |
3581 | | static inline bool hasZeroByte(uint32_t v) |
3582 | 0 | { |
3583 | | // Cf https://graphics.stanford.edu/~seander/bithacks.html#ZeroInWord |
3584 | 0 | return (((v)-0x01010101U) & ~(v) & 0x80808080U) != 0; |
3585 | 0 | } |
3586 | | |
3587 | | /************************************************************************/ |
3588 | | /* RasterIOProcessNoData() */ |
3589 | | /************************************************************************/ |
3590 | | |
3591 | | // This method is an optimization of the generic RasterIOInternal() |
3592 | | // that deals with a VRTComplexSource with only a NODATA value in it, and |
3593 | | // no other processing flags. |
3594 | | |
3595 | | // nReqXOff, nReqYOff, nReqXSize, nReqYSize are expressed in source band |
3596 | | // referential. |
3597 | | template <class WorkingDT, GDALDataType eWorkingDT> |
3598 | | CPLErr VRTComplexSource::RasterIOProcessNoData( |
3599 | | GDALRasterBand *poSourceBand, GDALDataType eVRTBandDataType, int nReqXOff, |
3600 | | int nReqYOff, int nReqXSize, int nReqYSize, void *pData, int nOutXSize, |
3601 | | int nOutYSize, GDALDataType eBufType, GSpacing nPixelSpace, |
3602 | | GSpacing nLineSpace, GDALRasterIOExtraArg *psExtraArg, |
3603 | | WorkingState &oWorkingState) |
3604 | 0 | { |
3605 | 0 | CPLAssert(m_nProcessingFlags == PROCESSING_FLAG_NODATA); |
3606 | 0 | CPLAssert(GDALIsValueExactAs<WorkingDT>(m_dfNoDataValue)); |
3607 | 0 | const int nWorkDTSize = GDALGetDataTypeSizeBytes(eWorkingDT); |
3608 | 0 | assert(nWorkDTSize != 0); |
3609 | | |
3610 | | /* -------------------------------------------------------------------- */ |
3611 | | /* Read into a temporary buffer. */ |
3612 | | /* -------------------------------------------------------------------- */ |
3613 | 0 | try |
3614 | 0 | { |
3615 | | // Cannot overflow since pData should at least have that number of |
3616 | | // elements |
3617 | 0 | const size_t nPixelCount = static_cast<size_t>(nOutXSize) * nOutYSize; |
3618 | 0 | if (nPixelCount > |
3619 | 0 | static_cast<size_t>(std::numeric_limits<ptrdiff_t>::max()) / |
3620 | 0 | nWorkDTSize) |
3621 | 0 | { |
3622 | 0 | CPLError(CE_Failure, CPLE_OutOfMemory, |
3623 | 0 | "Too large temporary buffer"); |
3624 | 0 | return CE_Failure; |
3625 | 0 | } |
3626 | 0 | oWorkingState.m_abyWrkBuffer.resize(nWorkDTSize * nPixelCount); |
3627 | 0 | } |
3628 | 0 | catch (const std::bad_alloc &e) |
3629 | 0 | { |
3630 | 0 | CPLError(CE_Failure, CPLE_OutOfMemory, "%s", e.what()); |
3631 | 0 | return CE_Failure; |
3632 | 0 | } |
3633 | 0 | auto paSrcData = |
3634 | 0 | reinterpret_cast<WorkingDT *>(oWorkingState.m_abyWrkBuffer.data()); |
3635 | |
|
3636 | 0 | GDALRasterIOExtraArg sExtraArg; |
3637 | 0 | GDALCopyRasterIOExtraArg(&sExtraArg, psExtraArg); |
3638 | 0 | if (!m_osResampling.empty()) |
3639 | 0 | { |
3640 | 0 | sExtraArg.eResampleAlg = GDALRasterIOGetResampleAlg(m_osResampling); |
3641 | 0 | } |
3642 | 0 | sExtraArg.bOperateInBufType = true; |
3643 | |
|
3644 | 0 | const CPLErr eErr = poSourceBand->RasterIO( |
3645 | 0 | GF_Read, nReqXOff, nReqYOff, nReqXSize, nReqYSize, |
3646 | 0 | oWorkingState.m_abyWrkBuffer.data(), nOutXSize, nOutYSize, eWorkingDT, |
3647 | 0 | nWorkDTSize, nWorkDTSize * static_cast<GSpacing>(nOutXSize), |
3648 | 0 | &sExtraArg); |
3649 | |
|
3650 | 0 | if (eErr != CE_None) |
3651 | 0 | { |
3652 | 0 | return eErr; |
3653 | 0 | } |
3654 | | |
3655 | 0 | const auto nNoDataValue = static_cast<WorkingDT>(m_dfNoDataValue); |
3656 | 0 | size_t idxBuffer = 0; |
3657 | 0 | if (eWorkingDT == eBufType && |
3658 | 0 | !GDALDataTypeIsConversionLossy(eWorkingDT, eVRTBandDataType)) |
3659 | 0 | { |
3660 | | // Most optimized case: the output type is the same as the working type, |
3661 | | // and conversion from the working type to the VRT band data type is |
3662 | | // not lossy |
3663 | 0 | for (int iY = 0; iY < nOutYSize; iY++) |
3664 | 0 | { |
3665 | 0 | GByte *pDstLocation = static_cast<GByte *>(pData) + |
3666 | 0 | static_cast<GPtrDiff_t>(nLineSpace) * iY; |
3667 | |
|
3668 | 0 | int iX = 0; |
3669 | 0 | if (sizeof(WorkingDT) == 1 && nPixelSpace == 1) |
3670 | 0 | { |
3671 | | // Optimization to detect more quickly if source pixels are |
3672 | | // at nodata. |
3673 | 0 | const GByte byNoDataValue = static_cast<GByte>(nNoDataValue); |
3674 | 0 | const uint32_t wordNoData = |
3675 | 0 | (static_cast<uint32_t>(byNoDataValue) << 24) | |
3676 | 0 | (byNoDataValue << 16) | (byNoDataValue << 8) | |
3677 | 0 | byNoDataValue; |
3678 | | |
3679 | | // Warning: hasZeroByte() assumes WORD_SIZE = 4 |
3680 | 0 | constexpr int WORD_SIZE = 4; |
3681 | 0 | for (; iX < nOutXSize - (WORD_SIZE - 1); iX += WORD_SIZE) |
3682 | 0 | { |
3683 | 0 | uint32_t v; |
3684 | 0 | static_assert(sizeof(v) == WORD_SIZE, |
3685 | 0 | "sizeof(v) == WORD_SIZE"); |
3686 | 0 | memcpy(&v, paSrcData + idxBuffer, sizeof(v)); |
3687 | | // Cf https://graphics.stanford.edu/~seander/bithacks.html#ValueInWord |
3688 | 0 | if (!hasZeroByte(v ^ wordNoData)) |
3689 | 0 | { |
3690 | | // No bytes are at nodata |
3691 | 0 | memcpy(pDstLocation, &v, WORD_SIZE); |
3692 | 0 | idxBuffer += WORD_SIZE; |
3693 | 0 | pDstLocation += WORD_SIZE; |
3694 | 0 | } |
3695 | 0 | else if (v == wordNoData) |
3696 | 0 | { |
3697 | | // All bytes are at nodata |
3698 | 0 | idxBuffer += WORD_SIZE; |
3699 | 0 | pDstLocation += WORD_SIZE; |
3700 | 0 | } |
3701 | 0 | else |
3702 | 0 | { |
3703 | | // There are both bytes at nodata and valid bytes |
3704 | 0 | for (int k = 0; k < WORD_SIZE; ++k) |
3705 | 0 | { |
3706 | 0 | if (paSrcData[idxBuffer] != nNoDataValue) |
3707 | 0 | { |
3708 | 0 | memcpy(pDstLocation, &paSrcData[idxBuffer], |
3709 | 0 | sizeof(WorkingDT)); |
3710 | 0 | } |
3711 | 0 | idxBuffer++; |
3712 | 0 | pDstLocation += nPixelSpace; |
3713 | 0 | } |
3714 | 0 | } |
3715 | 0 | } |
3716 | 0 | } |
3717 | |
|
3718 | 0 | for (; iX < nOutXSize; |
3719 | 0 | iX++, pDstLocation += nPixelSpace, idxBuffer++) |
3720 | 0 | { |
3721 | | if constexpr (eWorkingDT == GDT_Float32 || |
3722 | | eWorkingDT == GDT_Float64) |
3723 | 0 | { |
3724 | 0 | if (std::isnan(paSrcData[idxBuffer])) |
3725 | 0 | { |
3726 | 0 | continue; |
3727 | 0 | } |
3728 | 0 | } |
3729 | 0 | if (paSrcData[idxBuffer] != nNoDataValue) |
3730 | 0 | { |
3731 | 0 | memcpy(pDstLocation, &paSrcData[idxBuffer], |
3732 | 0 | sizeof(WorkingDT)); |
3733 | 0 | } |
3734 | 0 | } |
3735 | 0 | } |
3736 | 0 | } |
3737 | 0 | else if (!GDALDataTypeIsConversionLossy(eWorkingDT, eVRTBandDataType)) |
3738 | 0 | { |
3739 | | // Conversion from the work type to the VRT band data type is |
3740 | | // not lossy, so we can directly convert from the work type to |
3741 | | // the the output type |
3742 | 0 | for (int iY = 0; iY < nOutYSize; iY++) |
3743 | 0 | { |
3744 | 0 | GByte *pDstLocation = static_cast<GByte *>(pData) + |
3745 | 0 | static_cast<GPtrDiff_t>(nLineSpace) * iY; |
3746 | |
|
3747 | 0 | for (int iX = 0; iX < nOutXSize; |
3748 | 0 | iX++, pDstLocation += nPixelSpace, idxBuffer++) |
3749 | 0 | { |
3750 | | if constexpr (eWorkingDT == GDT_Float32 || |
3751 | | eWorkingDT == GDT_Float64) |
3752 | 0 | { |
3753 | 0 | if (std::isnan(paSrcData[idxBuffer])) |
3754 | 0 | { |
3755 | 0 | continue; |
3756 | 0 | } |
3757 | 0 | } |
3758 | 0 | if (paSrcData[idxBuffer] != nNoDataValue) |
3759 | 0 | { |
3760 | 0 | CopyWordOut(&paSrcData[idxBuffer], eWorkingDT, pDstLocation, |
3761 | 0 | eBufType); |
3762 | 0 | } |
3763 | 0 | } |
3764 | 0 | } |
3765 | 0 | } |
3766 | 0 | else |
3767 | 0 | { |
3768 | 0 | const bool bClampToVRTBandType = |
3769 | 0 | GDAL_GET_OPERATE_IN_BUF_TYPE(*psExtraArg); |
3770 | |
|
3771 | 0 | GByte abyTemp[2 * sizeof(double)]; |
3772 | 0 | for (int iY = 0; iY < nOutYSize; iY++) |
3773 | 0 | { |
3774 | 0 | GByte *pDstLocation = static_cast<GByte *>(pData) + |
3775 | 0 | static_cast<GPtrDiff_t>(nLineSpace) * iY; |
3776 | |
|
3777 | 0 | for (int iX = 0; iX < nOutXSize; |
3778 | 0 | iX++, pDstLocation += nPixelSpace, idxBuffer++) |
3779 | 0 | { |
3780 | | if constexpr (eWorkingDT == GDT_Float32 || |
3781 | | eWorkingDT == GDT_Float64) |
3782 | 0 | { |
3783 | 0 | if (std::isnan(paSrcData[idxBuffer])) |
3784 | 0 | { |
3785 | 0 | continue; |
3786 | 0 | } |
3787 | 0 | } |
3788 | 0 | if (paSrcData[idxBuffer] != nNoDataValue) |
3789 | 0 | { |
3790 | 0 | if (bClampToVRTBandType) |
3791 | 0 | { |
3792 | 0 | GDALClampValueToType(&paSrcData[idxBuffer], |
3793 | 0 | eVRTBandDataType); |
3794 | 0 | CopyWordOut(&paSrcData[idxBuffer], eWorkingDT, |
3795 | 0 | pDstLocation, eBufType); |
3796 | 0 | } |
3797 | 0 | else |
3798 | 0 | { |
3799 | | // Convert first to the VRTRasterBand data type |
3800 | | // to get its clamping, before outputting to buffer data type |
3801 | 0 | CopyWordOut(&paSrcData[idxBuffer], eWorkingDT, abyTemp, |
3802 | 0 | eVRTBandDataType); |
3803 | 0 | GDALCopyWords(abyTemp, eVRTBandDataType, 0, |
3804 | 0 | pDstLocation, eBufType, 0, 1); |
3805 | 0 | } |
3806 | 0 | } |
3807 | 0 | } |
3808 | 0 | } |
3809 | 0 | } |
3810 | | |
3811 | 0 | return CE_None; |
3812 | 0 | } Unexecuted instantiation: CPLErr VRTComplexSource::RasterIOProcessNoData<float, (GDALDataType)6>(GDALRasterBand*, GDALDataType, int, int, int, int, void*, int, int, GDALDataType, long long, long long, GDALRasterIOExtraArg*, VRTSource::WorkingState&) Unexecuted instantiation: CPLErr VRTComplexSource::RasterIOProcessNoData<double, (GDALDataType)7>(GDALRasterBand*, GDALDataType, int, int, int, int, void*, int, int, GDALDataType, long long, long long, GDALRasterIOExtraArg*, VRTSource::WorkingState&) Unexecuted instantiation: CPLErr VRTComplexSource::RasterIOProcessNoData<unsigned char, (GDALDataType)1>(GDALRasterBand*, GDALDataType, int, int, int, int, void*, int, int, GDALDataType, long long, long long, GDALRasterIOExtraArg*, VRTSource::WorkingState&) Unexecuted instantiation: CPLErr VRTComplexSource::RasterIOProcessNoData<short, (GDALDataType)3>(GDALRasterBand*, GDALDataType, int, int, int, int, void*, int, int, GDALDataType, long long, long long, GDALRasterIOExtraArg*, VRTSource::WorkingState&) Unexecuted instantiation: CPLErr VRTComplexSource::RasterIOProcessNoData<unsigned short, (GDALDataType)2>(GDALRasterBand*, GDALDataType, int, int, int, int, void*, int, int, GDALDataType, long long, long long, GDALRasterIOExtraArg*, VRTSource::WorkingState&) |
3813 | | |
3814 | | /************************************************************************/ |
3815 | | /* RasterIOInternal() */ |
3816 | | /************************************************************************/ |
3817 | | |
3818 | | // nReqXOff, nReqYOff, nReqXSize, nReqYSize are expressed in source band |
3819 | | // referential. |
3820 | | template <class WorkingDT> |
3821 | | CPLErr VRTComplexSource::RasterIOInternal( |
3822 | | GDALRasterBand *poSourceBand, GDALDataType eVRTBandDataType, int nReqXOff, |
3823 | | int nReqYOff, int nReqXSize, int nReqYSize, void *pData, int nOutXSize, |
3824 | | int nOutYSize, GDALDataType eBufType, GSpacing nPixelSpace, |
3825 | | GSpacing nLineSpace, GDALRasterIOExtraArg *psExtraArg, |
3826 | | GDALDataType eWrkDataType, WorkingState &oWorkingState) |
3827 | 0 | { |
3828 | 0 | const GDALColorTable *poColorTable = nullptr; |
3829 | 0 | const bool bIsComplex = CPL_TO_BOOL(GDALDataTypeIsComplex(eBufType)); |
3830 | 0 | const int nWorkDTSize = GDALGetDataTypeSizeBytes(eWrkDataType); |
3831 | 0 | assert(nWorkDTSize != 0); |
3832 | | |
3833 | | // If no explicit <NODATA> is set, but UseMaskBand is set, and the band |
3834 | | // has a nodata value, then use it as if it was set as <NODATA> |
3835 | 0 | int bNoDataSet = (m_nProcessingFlags & PROCESSING_FLAG_NODATA) != 0; |
3836 | 0 | double dfNoDataValue = GetAdjustedNoDataValue(); |
3837 | |
|
3838 | 0 | if ((m_nProcessingFlags & PROCESSING_FLAG_USE_MASK_BAND) != 0 && |
3839 | 0 | poSourceBand->GetMaskFlags() == GMF_NODATA) |
3840 | 0 | { |
3841 | 0 | dfNoDataValue = poSourceBand->GetNoDataValue(&bNoDataSet); |
3842 | 0 | } |
3843 | |
|
3844 | 0 | const bool bNoDataSetIsNan = bNoDataSet && std::isnan(dfNoDataValue); |
3845 | 0 | const bool bNoDataSetAndNotNan = |
3846 | 0 | bNoDataSet && !std::isnan(dfNoDataValue) && |
3847 | 0 | GDALIsValueInRange<WorkingDT>(dfNoDataValue); |
3848 | 0 | const auto fWorkingDataTypeNoData = static_cast<WorkingDT>(dfNoDataValue); |
3849 | |
|
3850 | 0 | const GByte *pabyMask = nullptr; |
3851 | 0 | const WorkingDT *pafData = nullptr; |
3852 | 0 | if ((m_nProcessingFlags & PROCESSING_FLAG_SCALING_LINEAR) != 0 && |
3853 | 0 | m_dfScaleRatio == 0 && bNoDataSet == FALSE && |
3854 | 0 | (m_nProcessingFlags & PROCESSING_FLAG_USE_MASK_BAND) == 0) |
3855 | 0 | { |
3856 | | /* ------------------------------------------------------------------ */ |
3857 | | /* Optimization when writing a constant value */ |
3858 | | /* (used by the -addalpha option of gdalbuildvrt) */ |
3859 | | /* ------------------------------------------------------------------ */ |
3860 | | // Already set to NULL when defined. |
3861 | | // pafData = NULL; |
3862 | 0 | } |
3863 | 0 | else |
3864 | 0 | { |
3865 | | /* ---------------------------------------------------------------- */ |
3866 | | /* Read into a temporary buffer. */ |
3867 | | /* ---------------------------------------------------------------- */ |
3868 | 0 | const size_t nPixelCount = static_cast<size_t>(nOutXSize) * nOutYSize; |
3869 | 0 | try |
3870 | 0 | { |
3871 | | // Cannot overflow since pData should at least have that number of |
3872 | | // elements |
3873 | 0 | if (nPixelCount > |
3874 | 0 | static_cast<size_t>(std::numeric_limits<ptrdiff_t>::max()) / |
3875 | 0 | static_cast<size_t>(nWorkDTSize)) |
3876 | 0 | { |
3877 | 0 | CPLError(CE_Failure, CPLE_OutOfMemory, |
3878 | 0 | "Too large temporary buffer"); |
3879 | 0 | return CE_Failure; |
3880 | 0 | } |
3881 | 0 | oWorkingState.m_abyWrkBuffer.resize(nWorkDTSize * nPixelCount); |
3882 | 0 | } |
3883 | 0 | catch (const std::bad_alloc &e) |
3884 | 0 | { |
3885 | 0 | CPLError(CE_Failure, CPLE_OutOfMemory, "%s", e.what()); |
3886 | 0 | return CE_Failure; |
3887 | 0 | } |
3888 | 0 | pafData = reinterpret_cast<const WorkingDT *>( |
3889 | 0 | oWorkingState.m_abyWrkBuffer.data()); |
3890 | |
|
3891 | 0 | GDALRasterIOExtraArg sExtraArg; |
3892 | 0 | GDALCopyRasterIOExtraArg(&sExtraArg, psExtraArg); |
3893 | 0 | if (!m_osResampling.empty()) |
3894 | 0 | { |
3895 | 0 | sExtraArg.eResampleAlg = GDALRasterIOGetResampleAlg(m_osResampling); |
3896 | 0 | } |
3897 | 0 | sExtraArg.bOperateInBufType = true; |
3898 | |
|
3899 | 0 | const CPLErr eErr = poSourceBand->RasterIO( |
3900 | 0 | GF_Read, nReqXOff, nReqYOff, nReqXSize, nReqYSize, |
3901 | 0 | oWorkingState.m_abyWrkBuffer.data(), nOutXSize, nOutYSize, |
3902 | 0 | eWrkDataType, nWorkDTSize, |
3903 | 0 | nWorkDTSize * static_cast<GSpacing>(nOutXSize), &sExtraArg); |
3904 | |
|
3905 | 0 | if (eErr != CE_None) |
3906 | 0 | { |
3907 | 0 | return eErr; |
3908 | 0 | } |
3909 | | |
3910 | | // Allocate and read mask band if needed |
3911 | 0 | if (!bNoDataSet && |
3912 | 0 | (m_nProcessingFlags & PROCESSING_FLAG_USE_MASK_BAND) != 0 && |
3913 | 0 | (poSourceBand->GetMaskFlags() != GMF_ALL_VALID || |
3914 | 0 | poSourceBand->GetColorInterpretation() == GCI_AlphaBand || |
3915 | 0 | GetMaskBandMainBand() != nullptr)) |
3916 | 0 | { |
3917 | 0 | try |
3918 | 0 | { |
3919 | 0 | oWorkingState.m_abyWrkBufferMask.resize(nPixelCount); |
3920 | 0 | } |
3921 | 0 | catch (const std::exception &) |
3922 | 0 | { |
3923 | 0 | CPLError(CE_Failure, CPLE_OutOfMemory, |
3924 | 0 | "Out of memory when allocating mask buffer"); |
3925 | 0 | return CE_Failure; |
3926 | 0 | } |
3927 | 0 | pabyMask = reinterpret_cast<const GByte *>( |
3928 | 0 | oWorkingState.m_abyWrkBufferMask.data()); |
3929 | 0 | auto poMaskBand = |
3930 | 0 | (poSourceBand->GetColorInterpretation() == GCI_AlphaBand || |
3931 | 0 | GetMaskBandMainBand() != nullptr) |
3932 | 0 | ? poSourceBand |
3933 | 0 | : poSourceBand->GetMaskBand(); |
3934 | 0 | if (poMaskBand->RasterIO( |
3935 | 0 | GF_Read, nReqXOff, nReqYOff, nReqXSize, nReqYSize, |
3936 | 0 | oWorkingState.m_abyWrkBufferMask.data(), nOutXSize, |
3937 | 0 | nOutYSize, GDT_UInt8, 1, static_cast<GSpacing>(nOutXSize), |
3938 | 0 | psExtraArg) != CE_None) |
3939 | 0 | { |
3940 | 0 | return CE_Failure; |
3941 | 0 | } |
3942 | 0 | } |
3943 | | |
3944 | 0 | if (m_nColorTableComponent != 0) |
3945 | 0 | { |
3946 | 0 | poColorTable = poSourceBand->GetColorTable(); |
3947 | 0 | if (poColorTable == nullptr) |
3948 | 0 | { |
3949 | 0 | CPLError(CE_Failure, CPLE_AppDefined, |
3950 | 0 | "Source band has no color table."); |
3951 | 0 | return CE_Failure; |
3952 | 0 | } |
3953 | 0 | } |
3954 | 0 | } |
3955 | | |
3956 | | /* -------------------------------------------------------------------- */ |
3957 | | /* Selectively copy into output buffer with nodata masking, */ |
3958 | | /* and/or scaling. */ |
3959 | | /* -------------------------------------------------------------------- */ |
3960 | | |
3961 | 0 | const bool bTwoStepDataTypeConversion = |
3962 | 0 | CPL_TO_BOOL( |
3963 | 0 | GDALDataTypeIsConversionLossy(eWrkDataType, eVRTBandDataType)) && |
3964 | 0 | !CPL_TO_BOOL(GDALDataTypeIsConversionLossy(eVRTBandDataType, eBufType)); |
3965 | |
|
3966 | 0 | size_t idxBuffer = 0; |
3967 | 0 | for (int iY = 0; iY < nOutYSize; iY++) |
3968 | 0 | { |
3969 | 0 | GByte *pDstLocation = static_cast<GByte *>(pData) + |
3970 | 0 | static_cast<GPtrDiff_t>(nLineSpace) * iY; |
3971 | |
|
3972 | 0 | for (int iX = 0; iX < nOutXSize; |
3973 | 0 | iX++, pDstLocation += nPixelSpace, idxBuffer++) |
3974 | 0 | { |
3975 | 0 | WorkingDT afResult[2]; |
3976 | 0 | if (pafData && !bIsComplex) |
3977 | 0 | { |
3978 | 0 | WorkingDT fResult = pafData[idxBuffer]; |
3979 | 0 | if (bNoDataSetIsNan && std::isnan(fResult)) |
3980 | 0 | continue; |
3981 | 0 | if (bNoDataSetAndNotNan && |
3982 | 0 | ARE_REAL_EQUAL(fResult, fWorkingDataTypeNoData)) |
3983 | 0 | continue; |
3984 | 0 | if (pabyMask && pabyMask[idxBuffer] == 0) |
3985 | 0 | continue; |
3986 | | |
3987 | 0 | if (poColorTable) |
3988 | 0 | { |
3989 | 0 | const GDALColorEntry *poEntry = |
3990 | 0 | poColorTable->GetColorEntry(static_cast<int>(fResult)); |
3991 | 0 | if (poEntry) |
3992 | 0 | { |
3993 | 0 | if (m_nColorTableComponent == 1) |
3994 | 0 | fResult = poEntry->c1; |
3995 | 0 | else if (m_nColorTableComponent == 2) |
3996 | 0 | fResult = poEntry->c2; |
3997 | 0 | else if (m_nColorTableComponent == 3) |
3998 | 0 | fResult = poEntry->c3; |
3999 | 0 | else if (m_nColorTableComponent == 4) |
4000 | 0 | fResult = poEntry->c4; |
4001 | 0 | } |
4002 | 0 | else |
4003 | 0 | { |
4004 | 0 | CPLErrorOnce(CE_Failure, CPLE_AppDefined, |
4005 | 0 | "No entry %d.", static_cast<int>(fResult)); |
4006 | 0 | continue; |
4007 | 0 | } |
4008 | 0 | } |
4009 | | |
4010 | 0 | if ((m_nProcessingFlags & PROCESSING_FLAG_SCALING_LINEAR) != 0) |
4011 | 0 | { |
4012 | 0 | fResult = static_cast<WorkingDT>(fResult * m_dfScaleRatio + |
4013 | 0 | m_dfScaleOff); |
4014 | 0 | } |
4015 | 0 | else if ((m_nProcessingFlags & |
4016 | 0 | PROCESSING_FLAG_SCALING_EXPONENTIAL) != 0) |
4017 | 0 | { |
4018 | 0 | if (!m_bSrcMinMaxDefined) |
4019 | 0 | { |
4020 | 0 | int bSuccessMin = FALSE; |
4021 | 0 | int bSuccessMax = FALSE; |
4022 | 0 | double adfMinMax[2] = { |
4023 | 0 | poSourceBand->GetMinimum(&bSuccessMin), |
4024 | 0 | poSourceBand->GetMaximum(&bSuccessMax)}; |
4025 | 0 | if ((bSuccessMin && bSuccessMax) || |
4026 | 0 | poSourceBand->ComputeRasterMinMax( |
4027 | 0 | TRUE, adfMinMax) == CE_None) |
4028 | 0 | { |
4029 | 0 | m_dfSrcMin = adfMinMax[0]; |
4030 | 0 | m_dfSrcMax = adfMinMax[1]; |
4031 | 0 | m_bSrcMinMaxDefined = true; |
4032 | 0 | } |
4033 | 0 | else |
4034 | 0 | { |
4035 | 0 | CPLError(CE_Failure, CPLE_AppDefined, |
4036 | 0 | "Cannot determine source min/max value"); |
4037 | 0 | return CE_Failure; |
4038 | 0 | } |
4039 | 0 | } |
4040 | | |
4041 | 0 | double dfPowVal = (m_dfSrcMin == m_dfSrcMax) |
4042 | 0 | ? 0 |
4043 | 0 | : (fResult - m_dfSrcMin) / |
4044 | 0 | (m_dfSrcMax - m_dfSrcMin); |
4045 | 0 | if (m_bClip) |
4046 | 0 | { |
4047 | 0 | if (dfPowVal < 0.0) |
4048 | 0 | dfPowVal = 0.0; |
4049 | 0 | else if (dfPowVal > 1.0) |
4050 | 0 | dfPowVal = 1.0; |
4051 | 0 | } |
4052 | 0 | fResult = |
4053 | 0 | static_cast<WorkingDT>((m_dfDstMax - m_dfDstMin) * |
4054 | 0 | pow(dfPowVal, m_dfExponent) + |
4055 | 0 | m_dfDstMin); |
4056 | 0 | } |
4057 | | |
4058 | 0 | if (!m_adfLUTInputs.empty()) |
4059 | 0 | fResult = static_cast<WorkingDT>(LookupValue(fResult)); |
4060 | |
|
4061 | 0 | if (m_nMaxValue != 0 && fResult > m_nMaxValue) |
4062 | 0 | fResult = static_cast<WorkingDT>(m_nMaxValue); |
4063 | |
|
4064 | 0 | afResult[0] = fResult; |
4065 | 0 | afResult[1] = 0; |
4066 | 0 | } |
4067 | 0 | else if (pafData && bIsComplex) |
4068 | 0 | { |
4069 | 0 | afResult[0] = pafData[2 * idxBuffer]; |
4070 | 0 | afResult[1] = pafData[2 * idxBuffer + 1]; |
4071 | | |
4072 | | // Do not use color table. |
4073 | 0 | if ((m_nProcessingFlags & PROCESSING_FLAG_SCALING_LINEAR) != 0) |
4074 | 0 | { |
4075 | 0 | afResult[0] = static_cast<WorkingDT>( |
4076 | 0 | afResult[0] * m_dfScaleRatio + m_dfScaleOff); |
4077 | 0 | afResult[1] = static_cast<WorkingDT>( |
4078 | 0 | afResult[1] * m_dfScaleRatio + m_dfScaleOff); |
4079 | 0 | } |
4080 | | |
4081 | | /* Do not use LUT */ |
4082 | 0 | } |
4083 | 0 | else |
4084 | 0 | { |
4085 | 0 | afResult[0] = static_cast<WorkingDT>(m_dfScaleOff); |
4086 | 0 | afResult[1] = 0; |
4087 | |
|
4088 | 0 | if (!m_adfLUTInputs.empty()) |
4089 | 0 | afResult[0] = |
4090 | 0 | static_cast<WorkingDT>(LookupValue(afResult[0])); |
4091 | |
|
4092 | 0 | if (m_nMaxValue != 0 && afResult[0] > m_nMaxValue) |
4093 | 0 | afResult[0] = static_cast<WorkingDT>(m_nMaxValue); |
4094 | 0 | } |
4095 | | |
4096 | 0 | if (eBufType == GDT_UInt8 && eVRTBandDataType == GDT_UInt8) |
4097 | 0 | { |
4098 | 0 | *pDstLocation = static_cast<GByte>(std::min( |
4099 | 0 | 255.0f, |
4100 | 0 | std::max(0.0f, static_cast<float>(afResult[0]) + 0.5f))); |
4101 | 0 | } |
4102 | 0 | else if (!bTwoStepDataTypeConversion) |
4103 | 0 | { |
4104 | 0 | CopyWordOut(afResult, eWrkDataType, pDstLocation, eBufType); |
4105 | 0 | } |
4106 | 0 | else if (eVRTBandDataType == GDT_Float32 && eBufType == GDT_Float64) |
4107 | 0 | { |
4108 | | // Particular case of the below 2-step conversion. |
4109 | | // Helps a bit for some geolocation based warping with Sentinel3 |
4110 | | // data where the longitude/latitude arrays are Int32 bands, |
4111 | | // rescaled in VRT as Float32 and requested as Float64 |
4112 | 0 | float fVal; |
4113 | 0 | GDALCopyWord(afResult[0], fVal); |
4114 | 0 | *reinterpret_cast<double *>(pDstLocation) = fVal; |
4115 | 0 | } |
4116 | 0 | else |
4117 | 0 | { |
4118 | 0 | GByte abyTemp[2 * sizeof(double)]; |
4119 | | // Convert first to the VRTRasterBand data type |
4120 | | // to get its clamping, before outputting to buffer data type |
4121 | 0 | CopyWordOut(afResult, eWrkDataType, abyTemp, eVRTBandDataType); |
4122 | 0 | GDALCopyWords(abyTemp, eVRTBandDataType, 0, pDstLocation, |
4123 | 0 | eBufType, 0, 1); |
4124 | 0 | } |
4125 | 0 | } |
4126 | 0 | } |
4127 | | |
4128 | 0 | return CE_None; |
4129 | 0 | } Unexecuted instantiation: CPLErr VRTComplexSource::RasterIOInternal<float>(GDALRasterBand*, GDALDataType, int, int, int, int, void*, int, int, GDALDataType, long long, long long, GDALRasterIOExtraArg*, GDALDataType, VRTSource::WorkingState&) Unexecuted instantiation: CPLErr VRTComplexSource::RasterIOInternal<double>(GDALRasterBand*, GDALDataType, int, int, int, int, void*, int, int, GDALDataType, long long, long long, GDALRasterIOExtraArg*, GDALDataType, VRTSource::WorkingState&) |
4130 | | |
4131 | | // Explicitly instantiate template method, as it is used in another file. |
4132 | | template CPLErr VRTComplexSource::RasterIOInternal<float>( |
4133 | | GDALRasterBand *poSourceBand, GDALDataType eVRTBandDataType, int nReqXOff, |
4134 | | int nReqYOff, int nReqXSize, int nReqYSize, void *pData, int nOutXSize, |
4135 | | int nOutYSize, GDALDataType eBufType, GSpacing nPixelSpace, |
4136 | | GSpacing nLineSpace, GDALRasterIOExtraArg *psExtraArg, |
4137 | | GDALDataType eWrkDataType, WorkingState &oWorkingState); |
4138 | | |
4139 | | /************************************************************************/ |
4140 | | /* AreValuesUnchanged() */ |
4141 | | /************************************************************************/ |
4142 | | |
4143 | | bool VRTComplexSource::AreValuesUnchanged() const |
4144 | 0 | { |
4145 | 0 | return m_dfScaleOff == 0.0 && m_dfScaleRatio == 1.0 && |
4146 | 0 | m_adfLUTInputs.empty() && m_nColorTableComponent == 0 && |
4147 | 0 | (m_nProcessingFlags & PROCESSING_FLAG_SCALING_EXPONENTIAL) == 0; |
4148 | 0 | } |
4149 | | |
4150 | | /************************************************************************/ |
4151 | | /* GetMinimum() */ |
4152 | | /************************************************************************/ |
4153 | | |
4154 | | double VRTComplexSource::GetMinimum(int nXSize, int nYSize, int *pbSuccess) |
4155 | 0 | { |
4156 | 0 | if (AreValuesUnchanged()) |
4157 | 0 | { |
4158 | 0 | return VRTSimpleSource::GetMinimum(nXSize, nYSize, pbSuccess); |
4159 | 0 | } |
4160 | | |
4161 | 0 | *pbSuccess = FALSE; |
4162 | 0 | return 0; |
4163 | 0 | } |
4164 | | |
4165 | | /************************************************************************/ |
4166 | | /* GetMaximum() */ |
4167 | | /************************************************************************/ |
4168 | | |
4169 | | double VRTComplexSource::GetMaximum(int nXSize, int nYSize, int *pbSuccess) |
4170 | 0 | { |
4171 | 0 | if (AreValuesUnchanged()) |
4172 | 0 | { |
4173 | 0 | return VRTSimpleSource::GetMaximum(nXSize, nYSize, pbSuccess); |
4174 | 0 | } |
4175 | | |
4176 | 0 | *pbSuccess = FALSE; |
4177 | 0 | return 0; |
4178 | 0 | } |
4179 | | |
4180 | | /************************************************************************/ |
4181 | | /* GetHistogram() */ |
4182 | | /************************************************************************/ |
4183 | | |
4184 | | CPLErr VRTComplexSource::GetHistogram(int nXSize, int nYSize, double dfMin, |
4185 | | double dfMax, int nBuckets, |
4186 | | GUIntBig *panHistogram, |
4187 | | int bIncludeOutOfRange, int bApproxOK, |
4188 | | GDALProgressFunc pfnProgress, |
4189 | | void *pProgressData) |
4190 | 0 | { |
4191 | 0 | if (AreValuesUnchanged()) |
4192 | 0 | { |
4193 | 0 | return VRTSimpleSource::GetHistogram( |
4194 | 0 | nXSize, nYSize, dfMin, dfMax, nBuckets, panHistogram, |
4195 | 0 | bIncludeOutOfRange, bApproxOK, pfnProgress, pProgressData); |
4196 | 0 | } |
4197 | | |
4198 | 0 | return CE_Failure; |
4199 | 0 | } |
4200 | | |
4201 | | /************************************************************************/ |
4202 | | /* ==================================================================== */ |
4203 | | /* VRTFuncSource */ |
4204 | | /* ==================================================================== */ |
4205 | | /************************************************************************/ |
4206 | | |
4207 | | /************************************************************************/ |
4208 | | /* VRTFuncSource() */ |
4209 | | /************************************************************************/ |
4210 | | |
4211 | | VRTFuncSource::VRTFuncSource() |
4212 | 0 | : pfnReadFunc(nullptr), pCBData(nullptr), eType(GDT_UInt8), |
4213 | 0 | fNoDataValue(static_cast<float>(VRT_NODATA_UNSET)) |
4214 | 0 | { |
4215 | 0 | } |
4216 | | |
4217 | | /************************************************************************/ |
4218 | | /* ~VRTFuncSource() */ |
4219 | | /************************************************************************/ |
4220 | | |
4221 | | VRTFuncSource::~VRTFuncSource() |
4222 | | { |
4223 | | } |
4224 | | |
4225 | | /************************************************************************/ |
4226 | | /* GetType() */ |
4227 | | /************************************************************************/ |
4228 | | |
4229 | | const char *VRTFuncSource::GetType() const |
4230 | 0 | { |
4231 | 0 | static const char *TYPE = "FuncSource"; |
4232 | 0 | return TYPE; |
4233 | 0 | } |
4234 | | |
4235 | | /************************************************************************/ |
4236 | | /* SerializeToXML() */ |
4237 | | /************************************************************************/ |
4238 | | |
4239 | | CPLXMLNode *VRTFuncSource::SerializeToXML(CPL_UNUSED const char *pszVRTPath) |
4240 | 0 | { |
4241 | 0 | return nullptr; |
4242 | 0 | } |
4243 | | |
4244 | | /************************************************************************/ |
4245 | | /* RasterIO() */ |
4246 | | /************************************************************************/ |
4247 | | |
4248 | | CPLErr VRTFuncSource::RasterIO(GDALDataType /*eVRTBandDataType*/, int nXOff, |
4249 | | int nYOff, int nXSize, int nYSize, void *pData, |
4250 | | int nBufXSize, int nBufYSize, |
4251 | | GDALDataType eBufType, GSpacing nPixelSpace, |
4252 | | GSpacing nLineSpace, |
4253 | | GDALRasterIOExtraArg * /* psExtraArg */, |
4254 | | WorkingState & /* oWorkingState */) |
4255 | 0 | { |
4256 | 0 | if (nPixelSpace == GDALGetDataTypeSizeBytes(eBufType) && |
4257 | 0 | nLineSpace == nPixelSpace * nXSize && nBufXSize == nXSize && |
4258 | 0 | nBufYSize == nYSize && eBufType == eType) |
4259 | 0 | { |
4260 | 0 | return pfnReadFunc(pCBData, nXOff, nYOff, nXSize, nYSize, pData); |
4261 | 0 | } |
4262 | 0 | else |
4263 | 0 | { |
4264 | 0 | CPLError(CE_Failure, CPLE_AppDefined, |
4265 | 0 | "VRTFuncSource::RasterIO() - Irregular request."); |
4266 | 0 | CPLDebug("VRT", "Irregular request: %d,%d %d,%d, %d,%d %d,%d %d,%d", |
4267 | 0 | static_cast<int>(nPixelSpace), |
4268 | 0 | GDALGetDataTypeSizeBytes(eBufType), |
4269 | 0 | static_cast<int>(nLineSpace), |
4270 | 0 | static_cast<int>(nPixelSpace) * nXSize, nBufXSize, nXSize, |
4271 | 0 | nBufYSize, nYSize, static_cast<int>(eBufType), |
4272 | 0 | static_cast<int>(eType)); |
4273 | |
|
4274 | 0 | return CE_Failure; |
4275 | 0 | } |
4276 | 0 | } |
4277 | | |
4278 | | /************************************************************************/ |
4279 | | /* GetMinimum() */ |
4280 | | /************************************************************************/ |
4281 | | |
4282 | | double VRTFuncSource::GetMinimum(int /* nXSize */, int /* nYSize */, |
4283 | | int *pbSuccess) |
4284 | 0 | { |
4285 | 0 | *pbSuccess = FALSE; |
4286 | 0 | return 0; |
4287 | 0 | } |
4288 | | |
4289 | | /************************************************************************/ |
4290 | | /* GetMaximum() */ |
4291 | | /************************************************************************/ |
4292 | | |
4293 | | double VRTFuncSource::GetMaximum(int /* nXSize */, int /* nYSize */, |
4294 | | int *pbSuccess) |
4295 | 0 | { |
4296 | 0 | *pbSuccess = FALSE; |
4297 | 0 | return 0; |
4298 | 0 | } |
4299 | | |
4300 | | /************************************************************************/ |
4301 | | /* GetHistogram() */ |
4302 | | /************************************************************************/ |
4303 | | |
4304 | | CPLErr VRTFuncSource::GetHistogram( |
4305 | | int /* nXSize */, int /* nYSize */, double /* dfMin */, double /* dfMax */, |
4306 | | int /* nBuckets */, GUIntBig * /* panHistogram */, |
4307 | | int /* bIncludeOutOfRange */, int /* bApproxOK */, |
4308 | | GDALProgressFunc /* pfnProgress */, void * /* pProgressData */) |
4309 | 0 | { |
4310 | 0 | return CE_Failure; |
4311 | 0 | } |
4312 | | |
4313 | | /************************************************************************/ |
4314 | | /* VRTParseCoreSources() */ |
4315 | | /************************************************************************/ |
4316 | | |
4317 | | VRTSource *VRTParseCoreSources(const CPLXMLNode *psChild, |
4318 | | const char *pszVRTPath, |
4319 | | VRTMapSharedResources &oMapSharedSources) |
4320 | | |
4321 | 0 | { |
4322 | 0 | VRTSource *poSource = nullptr; |
4323 | |
|
4324 | 0 | if (EQUAL(psChild->pszValue, VRTAveragedSource::GetTypeStatic()) || |
4325 | 0 | (EQUAL(psChild->pszValue, VRTSimpleSource::GetTypeStatic()) && |
4326 | 0 | STARTS_WITH_CI(CPLGetXMLValue(psChild, "Resampling", "Nearest"), |
4327 | 0 | "Aver"))) |
4328 | 0 | { |
4329 | 0 | poSource = new VRTAveragedSource(); |
4330 | 0 | } |
4331 | 0 | else if (EQUAL(psChild->pszValue, VRTSimpleSource::GetTypeStatic())) |
4332 | 0 | { |
4333 | 0 | poSource = new VRTSimpleSource(); |
4334 | 0 | } |
4335 | 0 | else if (EQUAL(psChild->pszValue, VRTComplexSource::GetTypeStatic())) |
4336 | 0 | { |
4337 | 0 | poSource = new VRTComplexSource(); |
4338 | 0 | } |
4339 | 0 | else if (EQUAL(psChild->pszValue, VRTNoDataFromMaskSource::GetTypeStatic())) |
4340 | 0 | { |
4341 | 0 | poSource = new VRTNoDataFromMaskSource(); |
4342 | 0 | } |
4343 | 0 | else |
4344 | 0 | { |
4345 | 0 | CPLError(CE_Failure, CPLE_AppDefined, |
4346 | 0 | "VRTParseCoreSources() - Unknown source : %s", |
4347 | 0 | psChild->pszValue); |
4348 | 0 | return nullptr; |
4349 | 0 | } |
4350 | | |
4351 | 0 | if (poSource->XMLInit(psChild, pszVRTPath, oMapSharedSources) == CE_None) |
4352 | 0 | return poSource; |
4353 | | |
4354 | 0 | delete poSource; |
4355 | 0 | return nullptr; |
4356 | 0 | } |
4357 | | |
4358 | | /*! @endcond */ |