tumble.c

Sun, 30 Dec 2001 04:16:46 +0000

author
eric
date
Sun, 30 Dec 2001 04:16:46 +0000
changeset 14
4c261fbf8c77
parent 12
c3e2c2344560
child 17
d4699dfddcc0
permissions
-rw-r--r--

..

     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 1.3 2001/12/29 20:16:46 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 int line;
    37 FILE *yyin;
    38 TIFF *in;
    39 panda_pdf *out;
    42 boolean close_tiff_input_file (void)
    43 {
    44   if (in)
    45     TIFFClose (in);
    46   in = NULL;
    47   return (1);
    48 }
    50 boolean open_tiff_input_file (char *name)
    51 {
    52   if (in)
    53     close_tiff_input_file ();
    54   in = TIFFOpen (name, "r");
    55   if (! in)
    56     {
    57       fprintf (stderr, "can't open input file '%s'\n", name);
    58       return (0);
    59     }
    60   return (1);
    61 }
    64 boolean close_pdf_output_file (void)
    65 {
    66   if (out)
    67     panda_close (out);
    68   out = NULL;
    69   return (1);
    70 }
    72 boolean open_pdf_output_file (char *name)
    73 {
    74   if (out)
    75     close_pdf_output_file ();
    76   out = panda_open (name, "w");
    77   if (! out)
    78     {
    79       return (0);
    80     }
    81   return (1);
    82 }
    85 boolean process_page (int image)  /* range 1 .. n */
    86 {
    87   u32 image_length, image_width;
    88 #ifdef CHECK_DEPTH
    89   u32 image_depth;
    90 #endif
    91   u16 bits_per_sample;
    92   u16 planar_config;
    93   u16 resolution_unit;
    94   float x_resolution, y_resolution;
    96   char *buffer;
    97   u32 row;
    99   if (! TIFFSetDirectory (in, image - 1))
   100     {
   101       fprintf (stderr, "can't find page %d of input file\n", image);
   102       goto fail;
   103     }
   104   if (1 != TIFFGetField (in, TIFFTAG_IMAGELENGTH, & image_length))
   105     {
   106       fprintf (stderr, "can't get image length\n");
   107       goto fail;
   108     }
   109   if (1 != TIFFGetField (in, TIFFTAG_IMAGEWIDTH, & image_width))
   110     {
   111       fprintf (stderr, "can't get image width\n");
   112       goto fail;
   113     }
   114 #ifdef CHECK_DEPTH
   115   if (1 != TIFFGetField (in, TIFFTAG_IMAGEDEPTH, & image_depth))
   116     {
   117       fprintf (stderr, "can't get image depth\n");
   118       goto fail;
   119     }
   120 #endif
   122   if (1 != TIFFGetField (in, TIFFTAG_BITSPERSAMPLE, & bits_per_sample))
   123     {
   124       fprintf (stderr, "can't get bits per sample\n");
   125       goto fail;
   126     }
   128   if (1 != TIFFGetField (in, TIFFTAG_PLANARCONFIG, & planar_config))
   129     planar_config = 1;
   131   printf ("image length %u width %u, "
   132 #ifdef CHECK_DEPTH
   133           "depth %u, "
   134 #endif
   135           "planar config %u\n",
   136 	  image_length, image_width,
   137 #ifdef CHECK_DEPTH
   138 	  image_depth,
   139 #endif
   140 	  planar_config);
   142   if (1 != TIFFGetField (in, TIFFTAG_RESOLUTIONUNIT, & resolution_unit))
   143     resolution_unit = 2;
   144   if (1 != TIFFGetField (in, TIFFTAG_XRESOLUTION, & x_resolution))
   145     x_resolution = 300;
   146   if (1 != TIFFGetField (in, TIFFTAG_YRESOLUTION, & y_resolution))
   147     y_resolution = 300;
   149   printf ("resolution unit %u, x resolution %f, y resolution %f\n",
   150 	  resolution_unit, x_resolution, y_resolution);
   152 #ifdef CHECK_DEPTH
   153   if (image_depth != 1)
   154     {
   155       fprintf (stderr, "image depth %u, must be 1\n", image_depth);
   156       goto fail;
   157     }
   158 #endif
   160   if (bits_per_sample != 1)
   161     {
   162       fprintf (stderr, "bits per sample %u, must be 1\n", bits_per_sample);
   163       goto fail;
   164     }
   166   if (planar_config != 1)
   167     {
   168       fprintf (stderr, "planar config %u, must be 1\n", planar_config);
   169       goto fail;
   170     }
   172 #if 0
   173   TIFFSetField (out, TIFFTAG_IMAGELENGTH, image_length);
   174   TIFFSetField (out, TIFFTAG_IMAGEWIDTH, image_width);
   175   TIFFSetField (out, TIFFTAG_PLANARCONFIG, planar_config);
   177   TIFFSetField (out, TIFFTAG_ROWSPERSTRIP, image_length);
   179   TIFFSetField (out, TIFFTAG_RESOLUTIONUNIT, resolution_unit);
   180   TIFFSetField (out, TIFFTAG_XRESOLUTION, x_resolution);
   181   TIFFSetField (out, TIFFTAG_YRESOLUTION, y_resolution);
   183   TIFFSetField (out, TIFFTAG_BITSPERSAMPLE, bits_per_sample);
   184   TIFFSetField (out, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX4);
   185   TIFFSetField (out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISWHITE);
   186 #endif
   188   buffer = _TIFFmalloc (TIFFScanlineSize (in));
   189   if (! buffer)
   190     {
   191       fprintf (stderr, "failed to allocate buffer\n");
   192       goto fail;
   193     }
   195   for (row = 0; row < image_length; row++)
   196     {
   197       TIFFReadScanline (in, buffer, row, 0);
   198 #if 0
   199       TIFFWriteScanline (out, buffer, row, 0);
   200 #endif
   201     }
   203   _TIFFfree (buffer);
   205   return (1);
   207  fail:
   208   return (0);
   209 }
   212 void input_images (int first, int last)
   213 {
   214   if (first == last)
   215     printf ("image %d\n", first);
   216   else
   217     printf ("iamges %d..%d\n", first, last);
   218 }
   220 void output_pages (int first, int last)
   221 {
   222   if (first == last)
   223     printf ("page %d\n", first);
   224   else
   225     printf ("pages %d..%d\n", first, last);
   226 }
   229 void yyerror (char *s)
   230 {
   231   fprintf (stderr, "%d: %s\n", line, s);
   232 }
   235 int main (int argc, char *argv[])
   236 {
   237   int result = 0;
   239   panda_init ();
   241   if (argc != 2)
   242     {
   243       fprintf (stderr, "usage: %s spec\n", argv [0]);
   244       result = 1;
   245       goto fail;
   246     }
   248   yyin = fopen (argv [1], "r");
   249   if (! yyin)
   250     {
   251       fprintf (stderr, "can't open spec file '%s'\n", argv [1]);
   252       result = 3;
   253       goto fail;
   254     }
   256   line = 1;
   258   yyparse ();
   260  fail:
   261   if (yyin)
   262     fclose (yyin);
   263   close_tiff_input_file ();
   264   close_pdf_output_file ();
   265   return (result);
   266 }