tumble.c

Mon, 31 Dec 2001 16:44:24 +0000

author
eric
date
Mon, 31 Dec 2001 16:44:24 +0000
changeset 25
139b91f9a224
parent 23
1fe64161aaac
child 26
4368c5fd9242
permissions
-rw-r--r--

replaced page_number_format with page_label matching how PDF names
and stores them.

     1 /*
     2  * tiffg4: reencode a bilevel TIFF file as a single-strip TIFF Class F Group 4
     3  * Main program
     4  * $Id: tumble.c,v 1.7 2001/12/31 08:44:24 eric Exp $
     5  * Copyright 2001 Eric Smith <eric@brouhaha.com>
     6  *
     7  * This program is free software; you can redistribute it and/or modify
     8  * it under the terms of the GNU General Public License version 2 as
     9  * published by the Free Software Foundation.  Note that permission is
    10  * not granted to redistribute this program under the terms of any
    11  * other version of the General Public License.
    12  *
    13  * This program is distributed in the hope that it will be useful,
    14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    16  * GNU General Public License for more details.
    17  *
    18  * You should have received a copy of the GNU General Public License
    19  * along with this program; if not, write to the Free Software
    20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111  USA
    21  */
    24 #include <stdio.h>
    25 #include <tiffio.h>
    26 #include <panda/functions.h>
    27 #include <panda/constants.h>
    29 #include "type.h"
    30 #include "bitblt.h"
    31 #include "semantics.h"
    32 #include "parser.tab.h"
    33 #include "tiff2pdf.h"
    36 TIFF *in;
    37 panda_pdf *out;
    40 boolean close_tiff_input_file (void)
    41 {
    42   if (in)
    43     TIFFClose (in);
    44   in = NULL;
    45   return (1);
    46 }
    48 boolean open_tiff_input_file (char *name)
    49 {
    50   if (in)
    51     close_tiff_input_file ();
    52   in = TIFFOpen (name, "r");
    53   if (! in)
    54     {
    55       fprintf (stderr, "can't open input file '%s'\n", name);
    56       return (0);
    57     }
    58   return (1);
    59 }
    62 boolean close_pdf_output_file (void)
    63 {
    64   if (out)
    65     panda_close (out);
    66   out = NULL;
    67   return (1);
    68 }
    70 boolean open_pdf_output_file (char *name)
    71 {
    72   if (out)
    73     close_pdf_output_file ();
    74   out = panda_open (name, "w");
    75   if (! out)
    76     {
    77       return (0);
    78     }
    79   return (1);
    80 }
    83 void process_page_numbers (int page_index,
    84 			   int count,
    85 			   int base,
    86 			   page_label_t *page_label)
    87 {
    88 }
    91 boolean process_page (int image,  /* range 1 .. n */
    92 		      input_attributes_t input_attributes,
    93 		      bookmark_t *bookmarks)
    94 {
    95   u32 image_length, image_width;
    96 #ifdef CHECK_DEPTH
    97   u32 image_depth;
    98 #endif
    99   u16 bits_per_sample;
   100   u16 planar_config;
   101   u16 resolution_unit;
   102   float x_resolution, y_resolution;
   104   char *buffer;
   105   u32 row;
   107   if (! TIFFSetDirectory (in, image - 1))
   108     {
   109       fprintf (stderr, "can't find page %d of input file\n", image);
   110       goto fail;
   111     }
   112   if (1 != TIFFGetField (in, TIFFTAG_IMAGELENGTH, & image_length))
   113     {
   114       fprintf (stderr, "can't get image length\n");
   115       goto fail;
   116     }
   117   if (1 != TIFFGetField (in, TIFFTAG_IMAGEWIDTH, & image_width))
   118     {
   119       fprintf (stderr, "can't get image width\n");
   120       goto fail;
   121     }
   122 #ifdef CHECK_DEPTH
   123   if (1 != TIFFGetField (in, TIFFTAG_IMAGEDEPTH, & image_depth))
   124     {
   125       fprintf (stderr, "can't get image depth\n");
   126       goto fail;
   127     }
   128 #endif
   130   if (1 != TIFFGetField (in, TIFFTAG_BITSPERSAMPLE, & bits_per_sample))
   131     {
   132       fprintf (stderr, "can't get bits per sample\n");
   133       goto fail;
   134     }
   136   if (1 != TIFFGetField (in, TIFFTAG_PLANARCONFIG, & planar_config))
   137     planar_config = 1;
   139   printf ("image length %u width %u, "
   140 #ifdef CHECK_DEPTH
   141           "depth %u, "
   142 #endif
   143           "planar config %u\n",
   144 	  image_length, image_width,
   145 #ifdef CHECK_DEPTH
   146 	  image_depth,
   147 #endif
   148 	  planar_config);
   150   if (1 != TIFFGetField (in, TIFFTAG_RESOLUTIONUNIT, & resolution_unit))
   151     resolution_unit = 2;
   152   if (1 != TIFFGetField (in, TIFFTAG_XRESOLUTION, & x_resolution))
   153     x_resolution = 300;
   154   if (1 != TIFFGetField (in, TIFFTAG_YRESOLUTION, & y_resolution))
   155     y_resolution = 300;
   157   printf ("resolution unit %u, x resolution %f, y resolution %f\n",
   158 	  resolution_unit, x_resolution, y_resolution);
   160 #ifdef CHECK_DEPTH
   161   if (image_depth != 1)
   162     {
   163       fprintf (stderr, "image depth %u, must be 1\n", image_depth);
   164       goto fail;
   165     }
   166 #endif
   168   if (bits_per_sample != 1)
   169     {
   170       fprintf (stderr, "bits per sample %u, must be 1\n", bits_per_sample);
   171       goto fail;
   172     }
   174   if (planar_config != 1)
   175     {
   176       fprintf (stderr, "planar config %u, must be 1\n", planar_config);
   177       goto fail;
   178     }
   180 #if 0
   181   TIFFSetField (out, TIFFTAG_IMAGELENGTH, image_length);
   182   TIFFSetField (out, TIFFTAG_IMAGEWIDTH, image_width);
   183   TIFFSetField (out, TIFFTAG_PLANARCONFIG, planar_config);
   185   TIFFSetField (out, TIFFTAG_ROWSPERSTRIP, image_length);
   187   TIFFSetField (out, TIFFTAG_RESOLUTIONUNIT, resolution_unit);
   188   TIFFSetField (out, TIFFTAG_XRESOLUTION, x_resolution);
   189   TIFFSetField (out, TIFFTAG_YRESOLUTION, y_resolution);
   191   TIFFSetField (out, TIFFTAG_BITSPERSAMPLE, bits_per_sample);
   192   TIFFSetField (out, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX4);
   193   TIFFSetField (out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISWHITE);
   194 #endif
   196   buffer = _TIFFmalloc (TIFFScanlineSize (in));
   197   if (! buffer)
   198     {
   199       fprintf (stderr, "failed to allocate buffer\n");
   200       goto fail;
   201     }
   203   for (row = 0; row < image_length; row++)
   204     {
   205       TIFFReadScanline (in, buffer, row, 0);
   206 #if 0
   207       TIFFWriteScanline (out, buffer, row, 0);
   208 #endif
   209     }
   211   _TIFFfree (buffer);
   213   return (1);
   215  fail:
   216   return (0);
   217 }
   220 int main (int argc, char *argv[])
   221 {
   222   int result = 0;
   224   panda_init ();
   226   if (argc != 2)
   227     {
   228       fprintf (stderr, "usage: %s spec\n", argv [0]);
   229       result = 1;
   230       goto fail;
   231     }
   233   if (! parse_spec_file (argv [1]))
   234     goto fail;
   236  fail:
   237   close_tiff_input_file ();
   238   close_pdf_output_file ();
   239   return (result);
   240 }