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118 lines
4.4 KiB
C++
118 lines
4.4 KiB
C++
/******************************************************************************
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* $Id: nitfbilevel.cpp 27384 2014-05-24 12:28:12Z rouault $
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*
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* Project: NITF Read/Write Library
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* Purpose: Module implement BILEVEL (C1) compressed image reading.
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* Author: Frank Warmerdam, warmerdam@pobox.com
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*
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**********************************************************************
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* Copyright (c) 2007, Frank Warmerdam
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* Copyright (c) 2009, Even Rouault <even dot rouault at mines-paris dot org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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****************************************************************************/
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#include "gdal.h"
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#include "nitflib.h"
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#include "cpl_conv.h"
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#include "cpl_string.h"
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#include "cpl_multiproc.h"
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CPL_C_START
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#include "tiffio.h"
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CPL_C_END
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#include "tifvsi.h"
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CPL_CVSID("$Id: nitfbilevel.cpp 27384 2014-05-24 12:28:12Z rouault $");
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/************************************************************************/
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/* NITFUncompressBILEVEL() */
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/************************************************************************/
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int NITFUncompressBILEVEL( NITFImage *psImage,
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GByte *pabyInputData, int nInputBytes,
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GByte *pabyOutputImage )
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{
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int nOutputBytes= (psImage->nBlockWidth * psImage->nBlockHeight + 7)/8;
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/* -------------------------------------------------------------------- */
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/* Write memory TIFF with the bilevel data. */
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/* -------------------------------------------------------------------- */
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CPLString osFilename;
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osFilename.Printf( "/vsimem/nitf-wrk-%ld.tif", (long) CPLGetPID() );
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VSILFILE* fpL = VSIFOpenL(osFilename, "w+");
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if( fpL == NULL )
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return FALSE;
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TIFF *hTIFF = VSI_TIFFOpen( osFilename, "w+", fpL );
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if (hTIFF == NULL)
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{
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VSIFCloseL(fpL);
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return FALSE;
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}
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TIFFSetField( hTIFF, TIFFTAG_IMAGEWIDTH, psImage->nBlockWidth );
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TIFFSetField( hTIFF, TIFFTAG_IMAGELENGTH, psImage->nBlockHeight );
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TIFFSetField( hTIFF, TIFFTAG_BITSPERSAMPLE, 1 );
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TIFFSetField( hTIFF, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_UINT );
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TIFFSetField( hTIFF, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG );
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TIFFSetField( hTIFF, TIFFTAG_FILLORDER, FILLORDER_MSB2LSB );
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TIFFSetField( hTIFF, TIFFTAG_ROWSPERSTRIP, psImage->nBlockHeight );
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TIFFSetField( hTIFF, TIFFTAG_SAMPLESPERPIXEL, 1 );
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TIFFSetField( hTIFF, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK );
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TIFFSetField( hTIFF, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX3 );
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if( psImage->szCOMRAT[0] == '2' )
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TIFFSetField( hTIFF, TIFFTAG_GROUP3OPTIONS, GROUP3OPT_2DENCODING );
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TIFFWriteRawStrip( hTIFF, 0, pabyInputData, nInputBytes );
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TIFFWriteDirectory( hTIFF );
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TIFFClose( hTIFF );
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/* -------------------------------------------------------------------- */
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/* Now open and read it back. */
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/* -------------------------------------------------------------------- */
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int bResult = TRUE;
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hTIFF = VSI_TIFFOpen( osFilename, "r", fpL );
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if (hTIFF == NULL)
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{
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VSIFCloseL(fpL);
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return FALSE;
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}
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if( TIFFReadEncodedStrip( hTIFF, 0, pabyOutputImage, nOutputBytes ) == -1 )
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{
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memset( pabyOutputImage, 0, nOutputBytes );
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bResult = FALSE;
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}
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TIFFClose( hTIFF );
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VSIFCloseL(fpL);
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VSIUnlink( osFilename );
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return bResult;
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}
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