tumble.c

Sat, 29 Dec 2001 17:44:57 +0000

author
eric
date
Sat, 29 Dec 2001 17:44:57 +0000
changeset 10
3184d26a9596
child 12
c3e2c2344560
permissions
-rw-r--r--

Initial revision

     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 1.1 2001/12/29 09:44:24 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 "parser.tab.h"
    32 #include "tiff2pdf.h"
    35 TIFF *in;
    36 panda_pdf *out;
    39 boolean close_tiff_input_file (void)
    40 {
    41   if (in)
    42     TIFFClose (in);
    43   in = NULL;
    44   return (1);
    45 }
    47 boolean open_tiff_input_file (char *name)
    48 {
    49   if (in)
    50     close_tiff_input_file ();
    51   in = TIFFOpen (name, "r");
    52   if (! in)
    53     {
    54       fprintf (stderr, "can't open input file '%s'\n", name);
    55       return (0);
    56     }
    57   return (1);
    58 }
    61 boolean close_pdf_output_file (void)
    62 {
    63   if (out)
    64     panda_close (out);
    65   out = NULL;
    66   return (1);
    67 }
    69 boolean open_pdf_output_file (char *name)
    70 {
    71   if (out)
    72     close_pdf_output_file ();
    73   out = panda_open (name, "w");
    74   if (! out)
    75     {
    76       return (0);
    77     }
    78   return (1);
    79 }
    82 boolean process_page (int image)  /* range 1 .. n */
    83 {
    84   u32 image_length, image_width;
    85 #ifdef CHECK_DEPTH
    86   u32 image_depth;
    87 #endif
    88   u16 bits_per_sample;
    89   u16 planar_config;
    90   u16 resolution_unit;
    91   float x_resolution, y_resolution;
    93   char *buffer;
    94   u32 row;
    96   if (! TIFFSetDirectory (in, image - 1))
    97     {
    98       fprintf (stderr, "can't find page %d of input file\n", image);
    99       goto fail;
   100     }
   101   if (1 != TIFFGetField (in, TIFFTAG_IMAGELENGTH, & image_length))
   102     {
   103       fprintf (stderr, "can't get image length\n");
   104       goto fail;
   105     }
   106   if (1 != TIFFGetField (in, TIFFTAG_IMAGEWIDTH, & image_width))
   107     {
   108       fprintf (stderr, "can't get image width\n");
   109       goto fail;
   110     }
   111 #ifdef CHECK_DEPTH
   112   if (1 != TIFFGetField (in, TIFFTAG_IMAGEDEPTH, & image_depth))
   113     {
   114       fprintf (stderr, "can't get image depth\n");
   115       goto fail;
   116     }
   117 #endif
   119   if (1 != TIFFGetField (in, TIFFTAG_BITSPERSAMPLE, & bits_per_sample))
   120     {
   121       fprintf (stderr, "can't get bits per sample\n");
   122       goto fail;
   123     }
   125   if (1 != TIFFGetField (in, TIFFTAG_PLANARCONFIG, & planar_config))
   126     planar_config = 1;
   128   printf ("image length %u width %u, "
   129 #ifdef CHECK_DEPTH
   130           "depth %u, "
   131 #endif
   132           "planar config %u\n",
   133 	  image_length, image_width,
   134 #ifdef CHECK_DEPTH
   135 	  image_depth,
   136 #endif
   137 	  planar_config);
   139   if (1 != TIFFGetField (in, TIFFTAG_RESOLUTIONUNIT, & resolution_unit))
   140     resolution_unit = 2;
   141   if (1 != TIFFGetField (in, TIFFTAG_XRESOLUTION, & x_resolution))
   142     x_resolution = 300;
   143   if (1 != TIFFGetField (in, TIFFTAG_YRESOLUTION, & y_resolution))
   144     y_resolution = 300;
   146   printf ("resolution unit %u, x resolution %f, y resolution %f\n",
   147 	  resolution_unit, x_resolution, y_resolution);
   149 #ifdef CHECK_DEPTH
   150   if (image_depth != 1)
   151     {
   152       fprintf (stderr, "image depth %u, must be 1\n", image_depth);
   153       goto fail;
   154     }
   155 #endif
   157   if (bits_per_sample != 1)
   158     {
   159       fprintf (stderr, "bits per sample %u, must be 1\n", bits_per_sample);
   160       goto fail;
   161     }
   163   if (planar_config != 1)
   164     {
   165       fprintf (stderr, "planar config %u, must be 1\n", planar_config);
   166       goto fail;
   167     }
   169 #if 0
   170   TIFFSetField (out, TIFFTAG_IMAGELENGTH, image_length);
   171   TIFFSetField (out, TIFFTAG_IMAGEWIDTH, image_width);
   172   TIFFSetField (out, TIFFTAG_PLANARCONFIG, planar_config);
   174   TIFFSetField (out, TIFFTAG_ROWSPERSTRIP, image_length);
   176   TIFFSetField (out, TIFFTAG_RESOLUTIONUNIT, resolution_unit);
   177   TIFFSetField (out, TIFFTAG_XRESOLUTION, x_resolution);
   178   TIFFSetField (out, TIFFTAG_YRESOLUTION, y_resolution);
   180   TIFFSetField (out, TIFFTAG_BITSPERSAMPLE, bits_per_sample);
   181   TIFFSetField (out, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX4);
   182   TIFFSetField (out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISWHITE);
   183 #endif
   185   buffer = _TIFFmalloc (TIFFScanlineSize (in));
   186   if (! buffer)
   187     {
   188       fprintf (stderr, "failed to allocate buffer\n");
   189       goto fail;
   190     }
   192   for (row = 0; row < image_length; row++)
   193     {
   194       TIFFReadScanline (in, buffer, row, 0);
   195 #if 0
   196       TIFFWriteScanline (out, buffer, row, 0);
   197 #endif
   198     }
   200   _TIFFfree (buffer);
   202   return (1);
   204  fail:
   205   return (0);
   206 }
   210 int main (int argc, char *argv[])
   211 {
   212   FILE *spec;
   213   int result = 0;
   215   panda_init ();
   217   if (argc != 2)
   218     {
   219       fprintf (stderr, "usage: %s spec\n", argv [0]);
   220       result = 1;
   221       goto fail;
   222     }
   224   spec = fopen (argv [2], "r");
   225   if (! spec)
   226     {
   227       fprintf (stderr, "can't open spec file '%s'\n", argv [2]);
   228       result = 3;
   229       goto fail;
   230     }
   232   yyparse ();
   234  fail:
   235   close_tiff_input_file ();
   236   close_pdf_output_file ();
   237   return (result);
   238 }