1                 : /******************************************************************************
       2                 :  * $Id: nitfbilevel.cpp 16416 2009-02-25 21:13:08Z rouault $
       3                 :  *
       4                 :  * Project:  NITF Read/Write Library
       5                 :  * Purpose:  Module implement BILEVEL (C1) compressed image reading.
       6                 :  * Author:   Frank Warmerdam, warmerdam@pobox.com
       7                 :  *
       8                 :  **********************************************************************
       9                 :  * Copyright (c) 2007, Frank Warmerdam
      10                 :  *
      11                 :  * Permission is hereby granted, free of charge, to any person obtaining a
      12                 :  * copy of this software and associated documentation files (the "Software"),
      13                 :  * to deal in the Software without restriction, including without limitation
      14                 :  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      15                 :  * and/or sell copies of the Software, and to permit persons to whom the
      16                 :  * Software is furnished to do so, subject to the following conditions:
      17                 :  *
      18                 :  * The above copyright notice and this permission notice shall be included
      19                 :  * in all copies or substantial portions of the Software.
      20                 :  *
      21                 :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
      22                 :  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      23                 :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
      24                 :  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      25                 :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      26                 :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
      27                 :  * DEALINGS IN THE SOFTWARE.
      28                 :  ****************************************************************************/
      29                 : 
      30                 : #include "gdal.h"
      31                 : #include "nitflib.h"
      32                 : #include "cpl_conv.h"
      33                 : #include "cpl_string.h"
      34                 : #include "cpl_multiproc.h"
      35                 : 
      36                 : CPL_C_START
      37                 : #include "tiffio.h"
      38                 : CPL_C_END
      39                 : 
      40                 : TIFF* VSI_TIFFOpen(const char* name, const char* mode);
      41                 : 
      42                 : CPL_CVSID("$Id: nitfbilevel.cpp 16416 2009-02-25 21:13:08Z rouault $");
      43                 : 
      44                 : /************************************************************************/
      45                 : /*                       NITFUncompressBILEVEL()                        */
      46                 : /************************************************************************/
      47                 : 
      48               1 : int NITFUncompressBILEVEL( NITFImage *psImage, 
      49                 :                            GByte *pabyInputData, int nInputBytes,
      50                 :                            GByte *pabyOutputImage )
      51                 : 
      52                 : {
      53               1 :     int nOutputBytes= (psImage->nBlockWidth * psImage->nBlockHeight + 7)/8;
      54                 : 
      55                 : /* -------------------------------------------------------------------- */
      56                 : /*      Write memory TIFF with the bilevel data.                        */
      57                 : /* -------------------------------------------------------------------- */
      58               1 :     CPLString osFilename;
      59                 : 
      60               1 :     osFilename.Printf( "/vsimem/nitf-wrk-%ld.tif", (long) CPLGetPID() );
      61                 : 
      62               1 :     TIFF *hTIFF = VSI_TIFFOpen( osFilename, "w+" );
      63               1 :     if (hTIFF == NULL)
      64                 :     {
      65               0 :         return FALSE;
      66                 :     }
      67                 : 
      68               1 :     TIFFSetField( hTIFF, TIFFTAG_IMAGEWIDTH,    psImage->nBlockWidth );
      69               1 :     TIFFSetField( hTIFF, TIFFTAG_IMAGELENGTH,   psImage->nBlockHeight );
      70               1 :     TIFFSetField( hTIFF, TIFFTAG_BITSPERSAMPLE, 1 );
      71               1 :     TIFFSetField( hTIFF, TIFFTAG_SAMPLEFORMAT,  SAMPLEFORMAT_UINT );
      72               1 :     TIFFSetField( hTIFF, TIFFTAG_PLANARCONFIG,  PLANARCONFIG_CONTIG );
      73               1 :     TIFFSetField( hTIFF, TIFFTAG_FILLORDER,     FILLORDER_MSB2LSB );
      74                 : 
      75               1 :     TIFFSetField( hTIFF, TIFFTAG_ROWSPERSTRIP,  psImage->nBlockHeight );
      76               1 :     TIFFSetField( hTIFF, TIFFTAG_SAMPLESPERPIXEL, 1 );
      77               1 :     TIFFSetField( hTIFF, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK );
      78               1 :     TIFFSetField( hTIFF, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX3 );
      79                 :     
      80               1 :     if( psImage->szCOMRAT[0] == '2' )
      81               1 :         TIFFSetField( hTIFF, TIFFTAG_GROUP3OPTIONS, GROUP3OPT_2DENCODING );
      82                 : 
      83               1 :     TIFFWriteRawStrip( hTIFF, 0, pabyInputData, nInputBytes );
      84               1 :     TIFFWriteDirectory( hTIFF );
      85                 : 
      86               1 :     TIFFClose( hTIFF );
      87                 : 
      88                 : /* -------------------------------------------------------------------- */
      89                 : /*      Now open and read it back.                                      */
      90                 : /* -------------------------------------------------------------------- */
      91               1 :     int bResult = TRUE;
      92                 : 
      93               1 :     hTIFF = VSI_TIFFOpen( osFilename, "r" );
      94               1 :     if (hTIFF == NULL)
      95                 :     {
      96               0 :         return FALSE;
      97                 :     }
      98                 : 
      99                 : 
     100               1 :     if( TIFFReadEncodedStrip( hTIFF, 0, pabyOutputImage, nOutputBytes ) == -1 )
     101                 :     {
     102               0 :         memset( pabyOutputImage, 0, nOutputBytes );
     103               0 :         bResult = FALSE;
     104                 :     }
     105                 : 
     106               1 :     TIFFClose( hTIFF );
     107                 : 
     108               1 :     VSIUnlink( osFilename );
     109                 : 
     110               1 :     return bResult;
     111                 : }