tumble: tumble.c@3de372e4b230 (annotated)

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tumble.c@3de372e4b230 (annotated)

tumble.c

Sun, 30 Dec 2001 17:09:08 +0000

author: eric
date: Sun, 30 Dec 2001 17:09:08 +0000
changeset 18: 3de372e4b230
parent 17: d4699dfddcc0
child 23: 1fe64161aaac
permissions: -rw-r--r--

*** empty log message ***

 /*
  * tiffg4: reencode a bilevel TIFF file as a single-strip TIFF Class F Group 4
  * Main program
  * $Id: tumble.c,v 1.5 2001/12/30 09:09:08 eric Exp $
  * Copyright 2001 Eric Smith <eric@brouhaha.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.  Note that permission is
  * not granted to redistribute this program under the terms of any
  * other version of the General Public License.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111  USA
  */
 #include <stdio.h>
 #include <tiffio.h>
 #include <panda/functions.h>
 #include <panda/constants.h>
 #include "type.h"
 #include "bitblt.h"
 #include "semantics.h"
 #include "parser.tab.h"
 #include "tiff2pdf.h"
 TIFF *in;
 panda_pdf *out;
 boolean close_tiff_input_file (void)
 {
   if (in)
     TIFFClose (in);
   in = NULL;
   return (1);
 }
 boolean open_tiff_input_file (char *name)
 {
   if (in)
     close_tiff_input_file ();
   in = TIFFOpen (name, "r");
   if (! in)
     {
       fprintf (stderr, "can't open input file '%s'\n", name);
       return (0);
     }
   return (1);
 }
 boolean close_pdf_output_file (void)
 {
   if (out)
     panda_close (out);
   out = NULL;
   return (1);
 }
 boolean open_pdf_output_file (char *name)
 {
   if (out)
     close_pdf_output_file ();
   out = panda_open (name, "w");
   if (! out)
     {
       return (0);
     }
   return (1);
 }
 boolean process_page (int image)  /* range 1 .. n */
 {
   u32 image_length, image_width;
 #ifdef CHECK_DEPTH
   u32 image_depth;
 #endif
   u16 bits_per_sample;
   u16 planar_config;
   u16 resolution_unit;
   float x_resolution, y_resolution;
   char *buffer;
   u32 row;
   if (! TIFFSetDirectory (in, image - 1))
     {
       fprintf (stderr, "can't find page %d of input file\n", image);
       goto fail;
     }
   if (1 != TIFFGetField (in, TIFFTAG_IMAGELENGTH, & image_length))
     {
       fprintf (stderr, "can't get image length\n");
       goto fail;
     }
   if (1 != TIFFGetField (in, TIFFTAG_IMAGEWIDTH, & image_width))
     {
       fprintf (stderr, "can't get image width\n");
       goto fail;
     }
 #ifdef CHECK_DEPTH
   if (1 != TIFFGetField (in, TIFFTAG_IMAGEDEPTH, & image_depth))
     {
       fprintf (stderr, "can't get image depth\n");
       goto fail;
     }
 #endif
   if (1 != TIFFGetField (in, TIFFTAG_BITSPERSAMPLE, & bits_per_sample))
     {
       fprintf (stderr, "can't get bits per sample\n");
       goto fail;
     }
   if (1 != TIFFGetField (in, TIFFTAG_PLANARCONFIG, & planar_config))
     planar_config = 1;
   printf ("image length %u width %u, "
 #ifdef CHECK_DEPTH
           "depth %u, "
 #endif
           "planar config %u\n",
 	  image_length, image_width,
 #ifdef CHECK_DEPTH
 	  image_depth,
 #endif
 	  planar_config);
   if (1 != TIFFGetField (in, TIFFTAG_RESOLUTIONUNIT, & resolution_unit))
     resolution_unit = 2;
   if (1 != TIFFGetField (in, TIFFTAG_XRESOLUTION, & x_resolution))
     x_resolution = 300;
   if (1 != TIFFGetField (in, TIFFTAG_YRESOLUTION, & y_resolution))
     y_resolution = 300;
   printf ("resolution unit %u, x resolution %f, y resolution %f\n",
 	  resolution_unit, x_resolution, y_resolution);
 #ifdef CHECK_DEPTH
   if (image_depth != 1)
     {
       fprintf (stderr, "image depth %u, must be 1\n", image_depth);
       goto fail;
     }
 #endif
   if (bits_per_sample != 1)
     {
       fprintf (stderr, "bits per sample %u, must be 1\n", bits_per_sample);
       goto fail;
     }
   if (planar_config != 1)
     {
       fprintf (stderr, "planar config %u, must be 1\n", planar_config);
       goto fail;
     }
 #if 0
   TIFFSetField (out, TIFFTAG_IMAGELENGTH, image_length);
   TIFFSetField (out, TIFFTAG_IMAGEWIDTH, image_width);
   TIFFSetField (out, TIFFTAG_PLANARCONFIG, planar_config);
   TIFFSetField (out, TIFFTAG_ROWSPERSTRIP, image_length);
   TIFFSetField (out, TIFFTAG_RESOLUTIONUNIT, resolution_unit);
   TIFFSetField (out, TIFFTAG_XRESOLUTION, x_resolution);
   TIFFSetField (out, TIFFTAG_YRESOLUTION, y_resolution);
   TIFFSetField (out, TIFFTAG_BITSPERSAMPLE, bits_per_sample);
   TIFFSetField (out, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX4);
   TIFFSetField (out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISWHITE);
 #endif
   buffer = _TIFFmalloc (TIFFScanlineSize (in));
   if (! buffer)
     {
       fprintf (stderr, "failed to allocate buffer\n");
       goto fail;
     }
   for (row = 0; row < image_length; row++)
     {
       TIFFReadScanline (in, buffer, row, 0);
 #if 0
       TIFFWriteScanline (out, buffer, row, 0);
 #endif
     }
   _TIFFfree (buffer);
   return (1);
  fail:
   return (0);
 }
 int main (int argc, char *argv[])
 {
   int result = 0;
   panda_init ();
   if (argc != 2)
     {
       fprintf (stderr, "usage: %s spec\n", argv [0]);
       result = 1;
       goto fail;
     }
   if (! parse_spec_file (argv [1]))
     goto fail;
  fail:
   close_tiff_input_file ();
   close_pdf_output_file ();
   return (result);
 }

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tumble.c@3de372e4b230 (annotated)

tumble.c