bool gstIconManager::CopyIcon(const std::string& src_path,
const std::string& dst_path) {
// file must not exist already
if (khExists(dst_path)) {
notify(NFY_WARN, "Icon \"%s\" already exists", dst_path.c_str());
return false;
}
GDALDataset* srcDataset = static_cast<GDALDataset*>(
GDALOpen(src_path.c_str(), GA_ReadOnly));
if (!srcDataset) {
notify(NFY_WARN, "Unable to open icon %s", src_path.c_str());
return false;
}
// determine the image type
// is it rgb or palette_index type
bool palette_type = false;
if (srcDataset->GetRasterCount() == 1 &&
srcDataset->GetRasterBand(1)->GetColorInterpretation() ==
GCI_PaletteIndex) {
palette_type = true;
} else if (srcDataset->GetRasterCount() != 4) {
notify(NFY_WARN, "%s: Image type not supported", src_path.c_str());
return false;
}
GDALDataset* oldSrcDataset = 0;
int target_size = 0;
bool need_scaling = false;
int srcXSize = srcDataset->GetRasterXSize();
int srcYSize = srcDataset->GetRasterYSize();
if ((srcXSize == 32) || (srcXSize == 64)) {
target_size = srcXSize;
if ((srcYSize != srcXSize) &&
(srcYSize != srcXSize*2) &&
(srcYSize != srcXSize*3)) {
need_scaling = true;
}
} else if (srcXSize < 32) {
target_size = 32;
need_scaling = true;
} else {
target_size = 64;
need_scaling = true;
}
if (need_scaling) {
// create a temp output dataset to scale the src
// icon to a square target_size*target_size. Later we'll make a stack.
VRTDataset* tempDataset = new VRTDataset(target_size, target_size);
int numBands = palette_type ? 1 : 4;
for (int b = 1; b <= numBands; ++b) {
tempDataset->AddBand(GDT_Byte, NULL);
VRTSourcedRasterBand* tempBand =
static_cast<VRTSourcedRasterBand*>(tempDataset->GetRasterBand(b));
GDALRasterBand* srcBand = srcDataset->GetRasterBand(b);
tempBand->AddSimpleSource(srcBand,
0, 0, srcXSize, srcYSize,
0, 0, target_size, target_size);
if (palette_type) {
tempBand->SetColorInterpretation(srcBand->GetColorInterpretation());
tempBand->SetColorTable(srcBand->GetColorTable());
}
}
oldSrcDataset = srcDataset;
srcDataset = tempDataset;
srcXSize = srcYSize = target_size;
}
assert(srcXSize == target_size);
// From here on we assume that we have a square, a stack of 2, or a stack of
// 3. It will be either 32 or 64 wide. The actual size is stored in srcXSize
// and srcYSize
bool simpleCopy = false;
if (srcYSize == srcXSize * 3)
simpleCopy = true;
// create a virtual dataset to represent the desired output image
VRTDataset* vds = new VRTDataset(target_size, target_size * 3);
// copy all the bands from the source
int numBands = palette_type ? 1 : 4;
for (int b = 1; b <= numBands; ++b) {
vds->AddBand(GDT_Byte, NULL);
VRTSourcedRasterBand* vrtBand =
static_cast<VRTSourcedRasterBand*>(vds->GetRasterBand(b));
GDALRasterBand* srcBand = srcDataset->GetRasterBand(b);
if (!simpleCopy) {
// extract the normal icon (on bottom of input image)
// and put it on the bottom of new image
// NOTE: srcYSize calculation lets us hand single, square images
// as well as two squares stacked on top of each other
vrtBand->AddSimpleSource(
srcBand,
0, srcYSize-target_size, target_size, target_size,
0, target_size*2, target_size, target_size);
// extract the highlight icon (on top of input image)
// and put it in the middle of new image
vrtBand->AddSimpleSource(srcBand,
0, 0, target_size, target_size,
0, target_size, target_size, target_size);
// extract the normal icon (on bottom of input image), scale it to 16x16
// and put it on the top of the new image
// NOTE: srcYSize calculation lets us hand single, square images
// as well as two squares stacked on top of each other
vrtBand->AddSimpleSource(
srcBand,
0, srcYSize-target_size, target_size, target_size,
0, 0, 16, 16);
} else {
vrtBand->AddSimpleSource(srcBand,
0, 0, target_size, target_size * 3,
0, 0, target_size, target_size * 3);
}
if (palette_type) {
vrtBand->SetColorInterpretation(srcBand->GetColorInterpretation());
vrtBand->SetColorTable(srcBand->GetColorTable());
}
}
// find output driver
GDALDriver* pngDriver = GetGDALDriverManager()->GetDriverByName("PNG");
if (pngDriver == NULL) {
notify(NFY_FATAL, "Unable to find png driver!");
return false;
}
// write out all bands at once
GDALDataset* dest = pngDriver->CreateCopy(
dst_path.c_str(), vds, false, NULL, NULL, NULL);
delete dest;
delete vds;
delete srcDataset;
delete oldSrcDataset;
// just in case the umask trimmed any permissions
khChmod(dst_path, 0666);
return true;
}
static int ProxyMain(int argc, char **argv)
{
GDALDatasetH hDataset, hOutDS;
int i;
int nRasterXSize, nRasterYSize;
const char *pszSource = NULL, *pszDest = NULL, *pszFormat = "GTiff";
GDALDriverH hDriver;
int *panBandList = NULL; /* negative value of panBandList[i] means mask band of ABS(panBandList[i]) */
int nBandCount = 0, bDefBands = TRUE;
double adfGeoTransform[6];
GDALDataType eOutputType = GDT_Unknown;
int nOXSize = 0, nOYSize = 0;
char *pszOXSize = NULL, *pszOYSize = NULL;
char **papszCreateOptions = NULL;
int anSrcWin[4], bStrict = FALSE;
const char *pszProjection;
int bScale = FALSE, bHaveScaleSrc = FALSE, bUnscale = FALSE;
double dfScaleSrcMin = 0.0, dfScaleSrcMax = 255.0;
double dfScaleDstMin = 0.0, dfScaleDstMax = 255.0;
double dfULX, dfULY, dfLRX, dfLRY;
char **papszMetadataOptions = NULL;
char *pszOutputSRS = NULL;
int bQuiet = FALSE, bGotBounds = FALSE;
GDALProgressFunc pfnProgress = GDALTermProgress;
int nGCPCount = 0;
GDAL_GCP *pasGCPs = NULL;
int iSrcFileArg = -1, iDstFileArg = -1;
int bCopySubDatasets = FALSE;
double adfULLR[4] = { 0, 0, 0, 0 };
int bSetNoData = FALSE;
int bUnsetNoData = FALSE;
double dfNoDataReal = 0.0;
int nRGBExpand = 0;
int bParsedMaskArgument = FALSE;
int eMaskMode = MASK_AUTO;
int nMaskBand = 0; /* negative value means mask band of ABS(nMaskBand) */
int bStats = FALSE, bApproxStats = FALSE;
anSrcWin[0] = 0;
anSrcWin[1] = 0;
anSrcWin[2] = 0;
anSrcWin[3] = 0;
dfULX = dfULY = dfLRX = dfLRY = 0.0;
/* Check strict compilation and runtime library version as we use C++ API */
if (!GDAL_CHECK_VERSION(argv[0]))
exit(1);
/* Must process GDAL_SKIP before GDALAllRegister(), but we can't call */
/* GDALGeneralCmdLineProcessor before it needs the drivers to be registered */
/* for the --format or --formats options */
for (i = 1; i < argc; i++)
{
if (EQUAL(argv[i], "--config") && i + 2 < argc && EQUAL(argv[i + 1], "GDAL_SKIP"))
{
CPLSetConfigOption(argv[i + 1], argv[i + 2]);
i += 2;
}
}
/* -------------------------------------------------------------------- */
/* Register standard GDAL drivers, and process generic GDAL */
/* command options. */
/* -------------------------------------------------------------------- */
GDALAllRegister();
argc = GDALGeneralCmdLineProcessor(argc, &argv, 0);
if (argc < 1)
exit(-argc);
/* -------------------------------------------------------------------- */
/* Handle command line arguments. */
/* -------------------------------------------------------------------- */
for (i = 1; i < argc; i++)
{
if (EQUAL(argv[i], "--utility_version"))
{
printf("%s was compiled against GDAL %s and is running against GDAL %s\n",
argv[0], GDAL_RELEASE_NAME, GDALVersionInfo("RELEASE_NAME"));
return 0;
}
else if (EQUAL(argv[i], "-of") && i < argc - 1)
pszFormat = argv[++i];
else if (EQUAL(argv[i], "-q") || EQUAL(argv[i], "-quiet"))
{
bQuiet = TRUE;
pfnProgress = GDALDummyProgress;
}
else if (EQUAL(argv[i], "-ot") && i < argc - 1)
{
int iType;
for (iType = 1; iType < GDT_TypeCount; iType++)
{
if (GDALGetDataTypeName((GDALDataType)iType) != NULL
&& EQUAL(GDALGetDataTypeName((GDALDataType)iType),
argv[i + 1]))
{
eOutputType = (GDALDataType) iType;
}
}
if (eOutputType == GDT_Unknown)
{
printf("Unknown output pixel type: %s\n", argv[i + 1]);
Usage();
GDALDestroyDriverManager();
exit(2);
}
i++;
}
else if (EQUAL(argv[i], "-b") && i < argc - 1)
{
const char *pszBand = argv[i + 1];
int bMask = FALSE;
if (EQUAL(pszBand, "mask"))
pszBand = "mask,1";
if (EQUALN(pszBand, "mask,", 5))
{
bMask = TRUE;
pszBand += 5;
/* If we use tha source mask band as a regular band */
/* don't create a target mask band by default */
if (!bParsedMaskArgument)
eMaskMode = MASK_DISABLED;
}
int nBand = atoi(pszBand);
if (nBand < 1)
{
printf("Unrecognizable band number (%s).\n", argv[i + 1]);
Usage();
GDALDestroyDriverManager();
exit(2);
}
i++;
nBandCount++;
panBandList = (int*)
CPLRealloc(panBandList, sizeof(int) * nBandCount);
panBandList[nBandCount - 1] = nBand;
if (bMask)
panBandList[nBandCount - 1] *= -1;
if (panBandList[nBandCount - 1] != nBandCount)
bDefBands = FALSE;
}
else if (EQUAL(argv[i], "-mask") && i < argc - 1)
{
bParsedMaskArgument = TRUE;
const char *pszBand = argv[i + 1];
if (EQUAL(pszBand, "none"))
{
eMaskMode = MASK_DISABLED;
}
else if (EQUAL(pszBand, "auto"))
{
eMaskMode = MASK_AUTO;
}
else
{
int bMask = FALSE;
if (EQUAL(pszBand, "mask"))
pszBand = "mask,1";
if (EQUALN(pszBand, "mask,", 5))
{
bMask = TRUE;
pszBand += 5;
}
int nBand = atoi(pszBand);
if (nBand < 1)
{
printf("Unrecognizable band number (%s).\n", argv[i + 1]);
Usage();
GDALDestroyDriverManager();
exit(2);
}
eMaskMode = MASK_USER;
nMaskBand = nBand;
if (bMask)
nMaskBand *= -1;
}
i++;
}
else if (EQUAL(argv[i], "-not_strict"))
bStrict = FALSE;
else if (EQUAL(argv[i], "-strict"))
bStrict = TRUE;
else if (EQUAL(argv[i], "-sds"))
bCopySubDatasets = TRUE;
else if (EQUAL(argv[i], "-gcp") && i < argc - 4)
{
char *endptr = NULL;
/* -gcp pixel line easting northing [elev] */
nGCPCount++;
pasGCPs = (GDAL_GCP*)
CPLRealloc(pasGCPs, sizeof(GDAL_GCP) * nGCPCount);
GDALInitGCPs(1, pasGCPs + nGCPCount - 1);
pasGCPs[nGCPCount - 1].dfGCPPixel = CPLAtofM(argv[++i]);
pasGCPs[nGCPCount - 1].dfGCPLine = CPLAtofM(argv[++i]);
pasGCPs[nGCPCount - 1].dfGCPX = CPLAtofM(argv[++i]);
pasGCPs[nGCPCount - 1].dfGCPY = CPLAtofM(argv[++i]);
if (argv[i + 1] != NULL
&& (CPLStrtod(argv[i + 1], &endptr) != 0.0 || argv[i + 1][0] == '0'))
{
/* Check that last argument is really a number and not a filename */
/* looking like a number (see ticket #863) */
if (endptr && *endptr == 0)
pasGCPs[nGCPCount - 1].dfGCPZ = CPLAtofM(argv[++i]);
}
/* should set id and info? */
}
else if (EQUAL(argv[i], "-a_nodata") && i < argc - 1)
{
if (EQUAL(argv[i + 1], "none"))
{
bUnsetNoData = TRUE;
}
else
{
bSetNoData = TRUE;
dfNoDataReal = CPLAtofM(argv[i + 1]);
}
i += 1;
}
else if (EQUAL(argv[i], "-a_ullr") && i < argc - 4)
{
adfULLR[0] = CPLAtofM(argv[i + 1]);
adfULLR[1] = CPLAtofM(argv[i + 2]);
adfULLR[2] = CPLAtofM(argv[i + 3]);
adfULLR[3] = CPLAtofM(argv[i + 4]);
bGotBounds = TRUE;
i += 4;
}
else if (EQUAL(argv[i], "-co") && i < argc - 1)
{
papszCreateOptions = CSLAddString(papszCreateOptions, argv[++i]);
}
else if (EQUAL(argv[i], "-scale"))
{
bScale = TRUE;
if (i < argc - 2 && ArgIsNumeric(argv[i + 1]))
{
bHaveScaleSrc = TRUE;
dfScaleSrcMin = CPLAtofM(argv[i + 1]);
dfScaleSrcMax = CPLAtofM(argv[i + 2]);
i += 2;
}
if (i < argc - 2 && bHaveScaleSrc && ArgIsNumeric(argv[i + 1]))
{
dfScaleDstMin = CPLAtofM(argv[i + 1]);
dfScaleDstMax = CPLAtofM(argv[i + 2]);
i += 2;
}
else
{
dfScaleDstMin = 0.0;
dfScaleDstMax = 255.999;
}
}
else if (EQUAL(argv[i], "-unscale"))
{
bUnscale = TRUE;
}
else if (EQUAL(argv[i], "-mo") && i < argc - 1)
{
papszMetadataOptions = CSLAddString(papszMetadataOptions,
argv[++i]);
}
else if (EQUAL(argv[i], "-outsize") && i < argc - 2)
{
pszOXSize = argv[++i];
pszOYSize = argv[++i];
}
else if (EQUAL(argv[i], "-srcwin") && i < argc - 4)
{
anSrcWin[0] = atoi(argv[++i]);
anSrcWin[1] = atoi(argv[++i]);
anSrcWin[2] = atoi(argv[++i]);
anSrcWin[3] = atoi(argv[++i]);
}
else if (EQUAL(argv[i], "-projwin") && i < argc - 4)
{
dfULX = CPLAtofM(argv[++i]);
dfULY = CPLAtofM(argv[++i]);
dfLRX = CPLAtofM(argv[++i]);
dfLRY = CPLAtofM(argv[++i]);
}
else if (EQUAL(argv[i], "-a_srs") && i < argc - 1)
{
OGRSpatialReference oOutputSRS;
if (oOutputSRS.SetFromUserInput(argv[i + 1]) != OGRERR_NONE)
{
fprintf(stderr, "Failed to process SRS definition: %s\n",
argv[i + 1]);
GDALDestroyDriverManager();
exit(1);
}
oOutputSRS.exportToWkt(&pszOutputSRS);
i++;
}
else if (EQUAL(argv[i], "-expand") && i < argc - 1)
{
if (EQUAL(argv[i + 1], "gray"))
nRGBExpand = 1;
else if (EQUAL(argv[i + 1], "rgb"))
nRGBExpand = 3;
else if (EQUAL(argv[i + 1], "rgba"))
nRGBExpand = 4;
else
{
printf("Value %s unsupported. Only gray, rgb or rgba are supported.\n\n",
argv[i]);
Usage();
GDALDestroyDriverManager();
exit(2);
}
i++;
}
else if (EQUAL(argv[i], "-stats"))
{
bStats = TRUE;
bApproxStats = FALSE;
}
else if (EQUAL(argv[i], "-approx_stats"))
{
bStats = TRUE;
bApproxStats = TRUE;
}
else if (argv[i][0] == '-')
{
printf("Option %s incomplete, or not recognised.\n\n",
argv[i]);
Usage();
GDALDestroyDriverManager();
exit(2);
}
else if (pszSource == NULL)
{
iSrcFileArg = i;
pszSource = argv[i];
}
else if (pszDest == NULL)
{
pszDest = argv[i];
iDstFileArg = i;
}
else
{
printf("Too many command options.\n\n");
Usage();
GDALDestroyDriverManager();
exit(2);
}
}
if (pszDest == NULL)
{
Usage();
GDALDestroyDriverManager();
exit(10);
}
if (strcmp(pszSource, pszDest) == 0)
{
fprintf(stderr, "Source and destination datasets must be different.\n");
GDALDestroyDriverManager();
exit(1);
}
if (strcmp(pszDest, "/vsistdout/") == 0)
{
bQuiet = TRUE;
pfnProgress = GDALDummyProgress;
}
/* -------------------------------------------------------------------- */
/* Attempt to open source file. */
/* -------------------------------------------------------------------- */
hDataset = GDALOpenShared(pszSource, GA_ReadOnly);
if (hDataset == NULL)
{
fprintf(stderr,
"GDALOpen failed - %d\n%s\n",
CPLGetLastErrorNo(), CPLGetLastErrorMsg());
GDALDestroyDriverManager();
exit(1);
}
/* -------------------------------------------------------------------- */
/* Handle subdatasets. */
/* -------------------------------------------------------------------- */
if (!bCopySubDatasets
&& CSLCount(GDALGetMetadata(hDataset, "SUBDATASETS")) > 0
&& GDALGetRasterCount(hDataset) == 0)
{
fprintf(stderr,
"Input file contains subdatasets. Please, select one of them for reading.\n");
GDALClose(hDataset);
GDALDestroyDriverManager();
exit(1);
}
if (CSLCount(GDALGetMetadata(hDataset, "SUBDATASETS")) > 0
&& bCopySubDatasets)
{
char **papszSubdatasets = GDALGetMetadata(hDataset, "SUBDATASETS");
char *pszSubDest = (char*) CPLMalloc(strlen(pszDest) + 32);
int i;
int bOldSubCall = bSubCall;
char **papszDupArgv = CSLDuplicate(argv);
int nRet = 0;
CPLFree(papszDupArgv[iDstFileArg]);
papszDupArgv[iDstFileArg] = pszSubDest;
bSubCall = TRUE;
for (i = 0; papszSubdatasets[i] != NULL; i += 2)
{
CPLFree(papszDupArgv[iSrcFileArg]);
papszDupArgv[iSrcFileArg] = CPLStrdup(strstr(papszSubdatasets[i], "=") + 1);
sprintf(pszSubDest, "%s%d", pszDest, i / 2 + 1);
nRet = ProxyMain(argc, papszDupArgv);
if (nRet != 0)
break;
}
CSLDestroy(papszDupArgv);
bSubCall = bOldSubCall;
CSLDestroy(argv);
GDALClose(hDataset);
if (!bSubCall)
{
GDALDumpOpenDatasets(stderr);
GDALDestroyDriverManager();
}
return nRet;
}
/* -------------------------------------------------------------------- */
/* Collect some information from the source file. */
/* -------------------------------------------------------------------- */
nRasterXSize = GDALGetRasterXSize(hDataset);
nRasterYSize = GDALGetRasterYSize(hDataset);
if (!bQuiet)
printf("Input file size is %d, %d\n", nRasterXSize, nRasterYSize);
if (anSrcWin[2] == 0 && anSrcWin[3] == 0)
{
anSrcWin[2] = nRasterXSize;
anSrcWin[3] = nRasterYSize;
}
/* -------------------------------------------------------------------- */
/* Build band list to translate */
/* -------------------------------------------------------------------- */
if (nBandCount == 0)
{
nBandCount = GDALGetRasterCount(hDataset);
if (nBandCount == 0)
{
fprintf(stderr, "Input file has no bands, and so cannot be translated.\n");
GDALDestroyDriverManager();
exit(1);
}
panBandList = (int*) CPLMalloc(sizeof(int) * nBandCount);
for (i = 0; i < nBandCount; i++)
panBandList[i] = i + 1;
}
else
{
for (i = 0; i < nBandCount; i++)
{
if (ABS(panBandList[i]) > GDALGetRasterCount(hDataset))
{
fprintf(stderr,
"Band %d requested, but only bands 1 to %d available.\n",
ABS(panBandList[i]), GDALGetRasterCount(hDataset));
GDALDestroyDriverManager();
exit(2);
}
}
if (nBandCount != GDALGetRasterCount(hDataset))
bDefBands = FALSE;
}
/* -------------------------------------------------------------------- */
/* Compute the source window from the projected source window */
/* if the projected coordinates were provided. Note that the */
/* projected coordinates are in ulx, uly, lrx, lry format, */
/* while the anSrcWin is xoff, yoff, xsize, ysize with the */
/* xoff,yoff being the ulx, uly in pixel/line. */
/* -------------------------------------------------------------------- */
if (dfULX != 0.0 || dfULY != 0.0
|| dfLRX != 0.0 || dfLRY != 0.0)
{
double adfGeoTransform[6];
GDALGetGeoTransform(hDataset, adfGeoTransform);
if (adfGeoTransform[2] != 0.0 || adfGeoTransform[4] != 0.0)
{
fprintf(stderr,
"The -projwin option was used, but the geotransform is\n"
"rotated. This configuration is not supported.\n");
GDALClose(hDataset);
CPLFree(panBandList);
GDALDestroyDriverManager();
exit(1);
}
anSrcWin[0] = (int)
((dfULX - adfGeoTransform[0]) / adfGeoTransform[1] + 0.001);
anSrcWin[1] = (int)
((dfULY - adfGeoTransform[3]) / adfGeoTransform[5] + 0.001);
anSrcWin[2] = (int) ((dfLRX - dfULX) / adfGeoTransform[1] + 0.5);
anSrcWin[3] = (int) ((dfLRY - dfULY) / adfGeoTransform[5] + 0.5);
if (!bQuiet)
fprintf(stdout,
"Computed -srcwin %d %d %d %d from projected window.\n",
anSrcWin[0],
anSrcWin[1],
anSrcWin[2],
anSrcWin[3]);
if (anSrcWin[0] < 0 || anSrcWin[1] < 0
|| anSrcWin[0] + anSrcWin[2] > GDALGetRasterXSize(hDataset)
|| anSrcWin[1] + anSrcWin[3] > GDALGetRasterYSize(hDataset))
{
fprintf(stderr,
"Computed -srcwin falls outside raster size of %dx%d.\n",
GDALGetRasterXSize(hDataset),
GDALGetRasterYSize(hDataset));
exit(1);
}
}
/* -------------------------------------------------------------------- */
/* Verify source window. */
/* -------------------------------------------------------------------- */
if (anSrcWin[0] < 0 || anSrcWin[1] < 0
|| anSrcWin[2] <= 0 || anSrcWin[3] <= 0
|| anSrcWin[0] + anSrcWin[2] > GDALGetRasterXSize(hDataset)
|| anSrcWin[1] + anSrcWin[3] > GDALGetRasterYSize(hDataset))
{
fprintf(stderr,
"-srcwin %d %d %d %d falls outside raster size of %dx%d\n"
"or is otherwise illegal.\n",
anSrcWin[0],
anSrcWin[1],
anSrcWin[2],
anSrcWin[3],
GDALGetRasterXSize(hDataset),
GDALGetRasterYSize(hDataset));
exit(1);
}
/* -------------------------------------------------------------------- */
/* Find the output driver. */
/* -------------------------------------------------------------------- */
hDriver = GDALGetDriverByName(pszFormat);
if (hDriver == NULL)
{
int iDr;
printf("Output driver `%s' not recognised.\n", pszFormat);
printf("The following format drivers are configured and support output:\n");
for (iDr = 0; iDr < GDALGetDriverCount(); iDr++)
{
GDALDriverH hDriver = GDALGetDriver(iDr);
if (GDALGetMetadataItem(hDriver, GDAL_DCAP_CREATE, NULL) != NULL
|| GDALGetMetadataItem(hDriver, GDAL_DCAP_CREATECOPY,
NULL) != NULL)
{
printf(" %s: %s\n",
GDALGetDriverShortName(hDriver),
GDALGetDriverLongName(hDriver));
}
}
printf("\n");
Usage();
GDALClose(hDataset);
CPLFree(panBandList);
GDALDestroyDriverManager();
CSLDestroy(argv);
CSLDestroy(papszCreateOptions);
exit(1);
}
/* -------------------------------------------------------------------- */
/* The short form is to CreateCopy(). We use this if the input */
/* matches the whole dataset. Eventually we should rewrite */
/* this entire program to use virtual datasets to construct a */
/* virtual input source to copy from. */
/* -------------------------------------------------------------------- */
int bSpatialArrangementPreserved = (
anSrcWin[0] == 0 && anSrcWin[1] == 0
&& anSrcWin[2] == GDALGetRasterXSize(hDataset)
&& anSrcWin[3] == GDALGetRasterYSize(hDataset)
&& pszOXSize == NULL && pszOYSize == NULL);
if (eOutputType == GDT_Unknown
&& !bScale && !bUnscale
&& CSLCount(papszMetadataOptions) == 0 && bDefBands
&& eMaskMode == MASK_AUTO
&& bSpatialArrangementPreserved
&& nGCPCount == 0 && !bGotBounds
&& pszOutputSRS == NULL && !bSetNoData && !bUnsetNoData
&& nRGBExpand == 0 && !bStats)
{
hOutDS = GDALCreateCopy(hDriver, pszDest, hDataset,
bStrict, papszCreateOptions,
pfnProgress, NULL);
if (hOutDS != NULL)
GDALClose(hOutDS);
GDALClose(hDataset);
CPLFree(panBandList);
if (!bSubCall)
{
GDALDumpOpenDatasets(stderr);
GDALDestroyDriverManager();
}
CSLDestroy(argv);
CSLDestroy(papszCreateOptions);
return hOutDS == NULL;
}
/* -------------------------------------------------------------------- */
/* Establish some parameters. */
/* -------------------------------------------------------------------- */
if (pszOXSize == NULL)
{
nOXSize = anSrcWin[2];
nOYSize = anSrcWin[3];
}
else
{
nOXSize = (int) ((pszOXSize[strlen(pszOXSize) - 1] == '%'
? CPLAtofM(pszOXSize) / 100 * anSrcWin[2] : atoi(pszOXSize)));
nOYSize = (int) ((pszOYSize[strlen(pszOYSize) - 1] == '%'
? CPLAtofM(pszOYSize) / 100 * anSrcWin[3] : atoi(pszOYSize)));
}
/* ==================================================================== */
/* Create a virtual dataset. */
/* ==================================================================== */
VRTDataset *poVDS;
/* -------------------------------------------------------------------- */
/* Make a virtual clone. */
/* -------------------------------------------------------------------- */
poVDS = (VRTDataset*) VRTCreate(nOXSize, nOYSize);
if (nGCPCount == 0)
{
if (pszOutputSRS != NULL)
{
poVDS->SetProjection(pszOutputSRS);
}
else
{
pszProjection = GDALGetProjectionRef(hDataset);
if (pszProjection != NULL && strlen(pszProjection) > 0)
poVDS->SetProjection(pszProjection);
}
}
if (bGotBounds)
{
adfGeoTransform[0] = adfULLR[0];
adfGeoTransform[1] = (adfULLR[2] - adfULLR[0]) / nOXSize;
adfGeoTransform[2] = 0.0;
adfGeoTransform[3] = adfULLR[1];
adfGeoTransform[4] = 0.0;
adfGeoTransform[5] = (adfULLR[3] - adfULLR[1]) / nOYSize;
poVDS->SetGeoTransform(adfGeoTransform);
}
else if (GDALGetGeoTransform(hDataset, adfGeoTransform) == CE_None
&& nGCPCount == 0)
{
adfGeoTransform[0] += anSrcWin[0] * adfGeoTransform[1]
+ anSrcWin[1] * adfGeoTransform[2];
adfGeoTransform[3] += anSrcWin[0] * adfGeoTransform[4]
+ anSrcWin[1] * adfGeoTransform[5];
adfGeoTransform[1] *= anSrcWin[2] / (double) nOXSize;
adfGeoTransform[2] *= anSrcWin[3] / (double) nOYSize;
adfGeoTransform[4] *= anSrcWin[2] / (double) nOXSize;
adfGeoTransform[5] *= anSrcWin[3] / (double) nOYSize;
poVDS->SetGeoTransform(adfGeoTransform);
}
if (nGCPCount != 0)
{
const char *pszGCPProjection = pszOutputSRS;
if (pszGCPProjection == NULL)
pszGCPProjection = GDALGetGCPProjection(hDataset);
if (pszGCPProjection == NULL)
pszGCPProjection = "";
poVDS->SetGCPs(nGCPCount, pasGCPs, pszGCPProjection);
GDALDeinitGCPs(nGCPCount, pasGCPs);
CPLFree(pasGCPs);
}
else if (GDALGetGCPCount(hDataset) > 0)
{
GDAL_GCP *pasGCPs;
int nGCPs = GDALGetGCPCount(hDataset);
pasGCPs = GDALDuplicateGCPs(nGCPs, GDALGetGCPs(hDataset));
for (i = 0; i < nGCPs; i++)
{
pasGCPs[i].dfGCPPixel -= anSrcWin[0];
pasGCPs[i].dfGCPLine -= anSrcWin[1];
pasGCPs[i].dfGCPPixel *= (nOXSize / (double) anSrcWin[2]);
pasGCPs[i].dfGCPLine *= (nOYSize / (double) anSrcWin[3]);
}
poVDS->SetGCPs(nGCPs, pasGCPs,
GDALGetGCPProjection(hDataset));
GDALDeinitGCPs(nGCPs, pasGCPs);
CPLFree(pasGCPs);
}
/* -------------------------------------------------------------------- */
/* Transfer generally applicable metadata. */
/* -------------------------------------------------------------------- */
poVDS->SetMetadata(((GDALDataset*)hDataset)->GetMetadata());
AttachMetadata((GDALDatasetH) poVDS, papszMetadataOptions);
const char *pszInterleave = GDALGetMetadataItem(hDataset, "INTERLEAVE", "IMAGE_STRUCTURE");
if (pszInterleave)
poVDS->SetMetadataItem("INTERLEAVE", pszInterleave, "IMAGE_STRUCTURE");
/* -------------------------------------------------------------------- */
/* Transfer metadata that remains valid if the spatial */
/* arrangement of the data is unaltered. */
/* -------------------------------------------------------------------- */
if (bSpatialArrangementPreserved)
{
char **papszMD;
papszMD = ((GDALDataset*)hDataset)->GetMetadata("RPC");
if (papszMD != NULL)
poVDS->SetMetadata(papszMD, "RPC");
papszMD = ((GDALDataset*)hDataset)->GetMetadata("GEOLOCATION");
if (papszMD != NULL)
poVDS->SetMetadata(papszMD, "GEOLOCATION");
}
int nSrcBandCount = nBandCount;
if (nRGBExpand != 0)
{
GDALRasterBand *poSrcBand;
poSrcBand = ((GDALDataset*)
hDataset)->GetRasterBand(ABS(panBandList[0]));
if (panBandList[0] < 0)
poSrcBand = poSrcBand->GetMaskBand();
GDALColorTable *poColorTable = poSrcBand->GetColorTable();
if (poColorTable == NULL)
{
fprintf(stderr, "Error : band %d has no color table\n", ABS(panBandList[0]));
GDALClose(hDataset);
CPLFree(panBandList);
GDALDestroyDriverManager();
CSLDestroy(argv);
CSLDestroy(papszCreateOptions);
exit(1);
}
/* Check that the color table only contains gray levels */
/* when using -expand gray */
if (nRGBExpand == 1)
{
int nColorCount = poColorTable->GetColorEntryCount();
int nColor;
for (nColor = 0; nColor < nColorCount; nColor++)
{
const GDALColorEntry *poEntry = poColorTable->GetColorEntry(nColor);
if (poEntry->c1 != poEntry->c2 || poEntry->c1 != poEntry->c2)
{
fprintf(stderr, "Warning : color table contains non gray levels colors\n");
break;
}
}
}
if (nBandCount == 1)
nBandCount = nRGBExpand;
else if (nBandCount == 2 && (nRGBExpand == 3 || nRGBExpand == 4))
nBandCount = nRGBExpand;
else
{
fprintf(stderr, "Error : invalid use of -expand option.\n");
exit(1);
}
}
int bFilterOutStatsMetadata =
(bScale || bUnscale || !bSpatialArrangementPreserved || nRGBExpand != 0);
/* ==================================================================== */
/* Process all bands. */
/* ==================================================================== */
for (i = 0; i < nBandCount; i++)
{
VRTSourcedRasterBand *poVRTBand;
GDALRasterBand *poSrcBand;
GDALDataType eBandType;
int nComponent = 0;
int nSrcBand;
if (nRGBExpand != 0)
{
if (nSrcBandCount == 2 && nRGBExpand == 4 && i == 3)
nSrcBand = panBandList[1];
else
{
nSrcBand = panBandList[0];
nComponent = i + 1;
}
}
else
nSrcBand = panBandList[i];
poSrcBand = ((GDALDataset*) hDataset)->GetRasterBand(ABS(nSrcBand));
/* -------------------------------------------------------------------- */
/* Select output data type to match source. */
/* -------------------------------------------------------------------- */
if (eOutputType == GDT_Unknown)
eBandType = poSrcBand->GetRasterDataType();
else
eBandType = eOutputType;
/* -------------------------------------------------------------------- */
/* Create this band. */
/* -------------------------------------------------------------------- */
poVDS->AddBand(eBandType, NULL);
poVRTBand = (VRTSourcedRasterBand*) poVDS->GetRasterBand(i + 1);
if (nSrcBand < 0)
{
poVRTBand->AddMaskBandSource(poSrcBand);
continue;
}
/* -------------------------------------------------------------------- */
/* Do we need to collect scaling information? */
/* -------------------------------------------------------------------- */
double dfScale = 1.0, dfOffset = 0.0;
if (bScale && !bHaveScaleSrc)
{
double adfCMinMax[2];
GDALComputeRasterMinMax(poSrcBand, TRUE, adfCMinMax);
dfScaleSrcMin = adfCMinMax[0];
dfScaleSrcMax = adfCMinMax[1];
}
if (bScale)
{
if (dfScaleSrcMax == dfScaleSrcMin)
dfScaleSrcMax += 0.1;
if (dfScaleDstMax == dfScaleDstMin)
dfScaleDstMax += 0.1;
dfScale = (dfScaleDstMax - dfScaleDstMin)
/ (dfScaleSrcMax - dfScaleSrcMin);
dfOffset = -1 * dfScaleSrcMin * dfScale + dfScaleDstMin;
}
if (bUnscale)
{
dfScale = poSrcBand->GetScale();
dfOffset = poSrcBand->GetOffset();
}
/* -------------------------------------------------------------------- */
/* Create a simple or complex data source depending on the */
/* translation type required. */
/* -------------------------------------------------------------------- */
if (bUnscale || bScale || (nRGBExpand != 0 && i < nRGBExpand))
{
poVRTBand->AddComplexSource(poSrcBand,
anSrcWin[0], anSrcWin[1],
anSrcWin[2], anSrcWin[3],
0, 0, nOXSize, nOYSize,
dfOffset, dfScale,
VRT_NODATA_UNSET,
nComponent);
}
else
poVRTBand->AddSimpleSource(poSrcBand,
anSrcWin[0], anSrcWin[1],
anSrcWin[2], anSrcWin[3],
0, 0, nOXSize, nOYSize);
/* -------------------------------------------------------------------- */
/* In case of color table translate, we only set the color */
/* interpretation other info copied by CopyBandInfo are */
/* not relevant in RGB expansion. */
/* -------------------------------------------------------------------- */
if (nRGBExpand == 1)
{
poVRTBand->SetColorInterpretation(GCI_GrayIndex);
}
else if (nRGBExpand != 0 && i < nRGBExpand)
{
poVRTBand->SetColorInterpretation((GDALColorInterp) (GCI_RedBand + i));
}
/* -------------------------------------------------------------------- */
/* copy over some other information of interest. */
/* -------------------------------------------------------------------- */
else
{
CopyBandInfo(poSrcBand, poVRTBand,
!bStats && !bFilterOutStatsMetadata,
!bUnscale,
!bSetNoData && !bUnsetNoData);
}
/* -------------------------------------------------------------------- */
/* Set a forcable nodata value? */
/* -------------------------------------------------------------------- */
if (bSetNoData)
{
double dfVal = dfNoDataReal;
int bClamped = FALSE, bRounded = FALSE;
#define CLAMP(val, type, minval, maxval) \
do { if (val < minval) { bClamped = TRUE; val = minval; \
} \
else if (val > maxval) { bClamped = TRUE; val = maxval; } \
else if (val != (type)val) { bRounded = TRUE; val = (type)(val + 0.5); } \
} \
while (0)
switch (eBandType)
{
case GDT_Byte:
CLAMP(dfVal, GByte, 0.0, 255.0);
break;
case GDT_Int16:
CLAMP(dfVal, GInt16, -32768.0, 32767.0);
break;
case GDT_UInt16:
CLAMP(dfVal, GUInt16, 0.0, 65535.0);
break;
case GDT_Int32:
CLAMP(dfVal, GInt32, -2147483648.0, 2147483647.0);
break;
case GDT_UInt32:
CLAMP(dfVal, GUInt32, 0.0, 4294967295.0);
break;
default:
break;
}
if (bClamped)
{
printf("for band %d, nodata value has been clamped "
"to %.0f, the original value being out of range.\n",
i + 1, dfVal);
}
else if (bRounded)
{
printf("for band %d, nodata value has been rounded "
"to %.0f, %s being an integer datatype.\n",
i + 1, dfVal,
GDALGetDataTypeName(eBandType));
}
poVRTBand->SetNoDataValue(dfVal);
}
if (eMaskMode == MASK_AUTO &&
(GDALGetMaskFlags(GDALGetRasterBand(hDataset, 1)) & GMF_PER_DATASET) == 0 &&
(poSrcBand->GetMaskFlags() & (GMF_ALL_VALID | GMF_NODATA)) == 0)
{
if (poVRTBand->CreateMaskBand(poSrcBand->GetMaskFlags()) == CE_None)
{
VRTSourcedRasterBand *hMaskVRTBand =
(VRTSourcedRasterBand*)poVRTBand->GetMaskBand();
hMaskVRTBand->AddMaskBandSource(poSrcBand,
anSrcWin[0], anSrcWin[1],
anSrcWin[2], anSrcWin[3],
0, 0, nOXSize, nOYSize);
}
}
}
if (eMaskMode == MASK_USER)
{
GDALRasterBand *poSrcBand =
(GDALRasterBand*)GDALGetRasterBand(hDataset, ABS(nMaskBand));
if (poSrcBand && poVDS->CreateMaskBand(GMF_PER_DATASET) == CE_None)
{
VRTSourcedRasterBand *hMaskVRTBand = (VRTSourcedRasterBand*)
GDALGetMaskBand(GDALGetRasterBand((GDALDatasetH)poVDS, 1));
if (nMaskBand > 0)
hMaskVRTBand->AddSimpleSource(poSrcBand,
anSrcWin[0], anSrcWin[1],
anSrcWin[2], anSrcWin[3],
0, 0, nOXSize, nOYSize);
else
hMaskVRTBand->AddMaskBandSource(poSrcBand,
anSrcWin[0], anSrcWin[1],
anSrcWin[2], anSrcWin[3],
0, 0, nOXSize, nOYSize);
}
}
else if (eMaskMode == MASK_AUTO && nSrcBandCount > 0 &&
GDALGetMaskFlags(GDALGetRasterBand(hDataset, 1)) == GMF_PER_DATASET)
{
if (poVDS->CreateMaskBand(GMF_PER_DATASET) == CE_None)
{
VRTSourcedRasterBand *hMaskVRTBand = (VRTSourcedRasterBand*)
GDALGetMaskBand(GDALGetRasterBand((GDALDatasetH)poVDS, 1));
hMaskVRTBand->AddMaskBandSource((GDALRasterBand*)GDALGetRasterBand(hDataset, 1),
anSrcWin[0], anSrcWin[1],
anSrcWin[2], anSrcWin[3],
0, 0, nOXSize, nOYSize);
}
}
/* -------------------------------------------------------------------- */
/* Compute stats if required. */
/* -------------------------------------------------------------------- */
if (bStats)
{
for (i = 0; i < poVDS->GetRasterCount(); i++)
{
double dfMin, dfMax, dfMean, dfStdDev;
poVDS->GetRasterBand(i + 1)->ComputeStatistics(bApproxStats,
&dfMin, &dfMax, &dfMean, &dfStdDev, GDALDummyProgress, NULL);
}
}
/* -------------------------------------------------------------------- */
/* Write to the output file using CopyCreate(). */
/* -------------------------------------------------------------------- */
hOutDS = GDALCreateCopy(hDriver, pszDest, (GDALDatasetH) poVDS,
bStrict, papszCreateOptions,
pfnProgress, NULL);
if (hOutDS != NULL)
{
int bHasGotErr = FALSE;
CPLErrorReset();
GDALFlushCache(hOutDS);
if (CPLGetLastErrorType() != CE_None)
bHasGotErr = TRUE;
GDALClose(hOutDS);
if (bHasGotErr)
hOutDS = NULL;
}
GDALClose((GDALDatasetH) poVDS);
GDALClose(hDataset);
CPLFree(panBandList);
CPLFree(pszOutputSRS);
if (!bSubCall)
{
GDALDumpOpenDatasets(stderr);
GDALDestroyDriverManager();
}
CSLDestroy(argv);
CSLDestroy(papszCreateOptions);
return hOutDS == NULL;
}