CompressWorker(string inputFile, string outputFile, int width, int height)
: CNCSFile(), imageWidth(width), imageHeight(height)
{
// Fill out the band information structure
NCSFileBandInfo bandInfo[IMAGE_BANDS];
bandInfo[0].nBits = 8;
bandInfo[0].bSigned = FALSE;
bandInfo[0].szDesc = "Red";
bandInfo[1].nBits = 8;
bandInfo[1].bSigned = FALSE;
bandInfo[1].szDesc = "Green";
bandInfo[2].nBits = 8;
bandInfo[2].bSigned = FALSE;
bandInfo[2].szDesc = "Blue";
// bandInfo[3].nBits = 8;
// bandInfo[3].bSigned = FALSE;
// bandInfo[3].szDesc = "Alpha";
// Fill out the file information structure
NCSFileViewFileInfoEx fileInfo;
fileInfo.nSizeX = width;
fileInfo.nSizeY = height;
fileInfo.nBands = IMAGE_BANDS;
fileInfo.nCompressionRate = 20;
fileInfo.eCellSizeUnits = ECW_CELL_UNITS_METERS;
fileInfo.fCellIncrementX = 1000;
fileInfo.fCellIncrementY = 1000;
fileInfo.fOriginX = 0;
fileInfo.fOriginY = 0;
fileInfo.szDatum = "RAW";
fileInfo.szProjection = "RAW";
fileInfo.fCWRotationDegrees = 0;
fileInfo.eColorSpace = NCSCS_sRGB;
fileInfo.eCellType = NCSCT_UINT8;
fileInfo.pBands = bandInfo;
CNCSError error = SetFileInfo(fileInfo);
string errorMessage = error.GetErrorMessage();
// Open file for output
char* fileNameC = new char[1000];
strncpy(fileNameC, outputFile.c_str(), 1000);
NCSError errorCode = Open(fileNameC, false, true);
if(errorCode != NCS_SUCCESS) {
string errorMessage = string(FormatErrorText(errorCode));
cout << "NCS: " << errorMessage << endl;
}
delete[] fileNameC;
// Open the input file
input = CreateFile(inputFile.c_str(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
inputBuffer = new unsigned char[imageWidth * IMAGE_BANDS];
}
INT WINAPI WinMain( HINSTANCE , HINSTANCE, LPSTR , INT )
{
int imageWidth = 43200;
int imageHeight = 21600;
string inputFile = "earth_diffuse_1km_shaded_RGB.raw";
string outputFile = "earth_diffuse_1km_shaded.ecw";
cout << "Input file: " << inputFile << " Output file: " << outputFile << endl;
CNCSFile::SetKeySize();
CompressWorker worker(inputFile, outputFile, imageWidth, imageHeight);
CNCSError error = worker.Write();
string errorMessage = error.GetErrorMessage();
}
CNCSError ECWDEMCompressor::Compress(ImageFormatECWDEM *NewIFECW, RasterBounds *RBounds, char *pDstFile, UINT32 ImgWidth, UINT32 ImgHeight, char Depth, UINT16 nRate)
{
//NCSFileViewFileInfoEx has basic info about the file - dimensions, bands,
//georeferencing information etc.
NCSFileViewFileInfoEx *pDstInfo = (NCSFileViewFileInfoEx *)NCSMalloc(sizeof(NCSFileViewFileInfoEx), true);
NCSFileViewFileInfoEx DstInfo = *pDstInfo;
CNCSError Error;
IFECW = NewIFECW;
DstInfo.nSizeX = ImgWidth;
DstInfo.nSizeY = ImgHeight;
switch (Depth)
{
case 8:
DstInfo.eCellType = NCSCT_UINT8;
break;
case 16:
DstInfo.eCellType = NCSCT_UINT16;
break;
//case 28: DstInfo.eCellType = NCSCT_IEEE4; break;
case 28:
DstInfo.eCellType = NCSCT_UINT32;
break;
} // switch
DstInfo.nBands = 1;
DstInfo.nCompressionRate = nRate;
DstInfo.eColorSpace = NCSCS_GREYSCALE;
#ifdef WCS_BUILD_VNS
if (RBounds && RBounds->FetchCoordSys())
{
IFECW->CreateECWGeoRefNewAPI(RBounds->FetchCoordSys(), &DstInfo, RBounds);
} // if
#endif // WCS_BUILD_VNS
//DstInfo.szProjection = "RAW";
//DstInfo.szDatum = "RAW";
//DstInfo.eCellSizeUnits = ECW_CELL_UNITS_METERS;
//DstInfo.fCellIncrementX = 1.0;
//DstInfo.fCellIncrementY = 1.0;
//DstInfo.fOriginX = 0.0;
//DstInfo.fOriginY = 0.0;
DstInfo.pBands = (NCSFileBandInfo *)(new NCSFileBandInfo[DstInfo.nBands]);
DstInfo.pBands[0].nBits = Depth;
DstInfo.pBands[0].bSigned = false;
DstInfo.pBands[0].szDesc = "Elevation";
//Call SetFileInfo to establish the file information we are going to
//use for compression. The parameters used are those from the NCSFileViewFileInfoEx
//struct we have populated using metadata derived from our input raster.
Error = SetFileInfo(DstInfo);
Error = Open(pDstFile, false, true);
if (Error == NCS_SUCCESS)
{
#ifdef WCS_BUILD_JP2BOX_SUPPORT
JP2UUID3DNBox RangeEquivs(NewIFECW->HighElev, NewIFECW->LowElev, (unsigned long int)NewIFECW->MaxValue, 0);
AddBox(&RangeEquivs);
#endif // WCS_BUILD_JP2BOX_SUPPORT
Error = Write();
if (Error == NCS_SUCCESS)
fprintf(stdout,"Finished compression\n");
else if (Error == NCS_USER_CANCELLED_COMPRESSION)
fprintf(stdout,"Compression cancelled\n");
else fprintf(stdout,"Error during compression: %s\n",Error.GetErrorMessage());
Error = Close(true);
} // if
return(Error);
} // ECWDEMCompressor::Compress
