tumble: tumble.c@752599b50ff3 (annotated)

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tumble.c@752599b50ff3 (annotated)

tumble.c

Thu, 20 Mar 2003 06:54:08 +0000

author: eric
date: Thu, 20 Mar 2003 06:54:08 +0000
changeset 141: 752599b50ff3
parent 139: ec2a06d8a2a6
child 149: 460c336ec8d7
permissions: -rw-r--r--

more JPEG support. added input file handler API.

 /*
  * tumble: build a PDF file from image files
  *
  * Main program
  * $Id: tumble.c,v 1.38 2003/03/19 22:54:07 eric Exp $
  * Copyright 2001, 2002, 2003 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 <stdarg.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 #include "semantics.h"
 #include "parser.tab.h"
 #include "tumble.h"
 #include "bitblt.h"
 #include "pdf.h"
 #include "tumble_input.h"
 #define MAX_INPUT_FILES 5000
 typedef struct output_file_t
 {
   struct output_file_t *next;
   char *name;
   pdf_file_handle pdf;
 } output_file_t;
 int verbose;
 output_file_t *output_files;
 output_file_t *out;
 char *progname;
 bool close_pdf_output_files (void);
 void usage (void)
 {
   fprintf (stderr, "\n");
   fprintf (stderr, "tumble - Copyright 2001-2003 Eric Smith <eric@brouhaha.com>\n");
   fprintf (stderr, "http://tumble.brouhaha.com/\n");
   fprintf (stderr, "\n");
   fprintf (stderr, "usage:\n");
   fprintf (stderr, "    %s [options] -c <control.tum>\n", progname);
   fprintf (stderr, "    %s [options] <input.tif>... -o <output.pdf>\n", progname);
   fprintf (stderr, "options:\n");
   fprintf (stderr, "    -v        verbose\n");
   fprintf (stderr, "    -b <fmt>  create bookmarks\n");
   fprintf (stderr, "bookmark format:\n");
   fprintf (stderr, "    %%F  file name (sans suffix)\n");
   fprintf (stderr, "    %%p  page number\n");
 }
 /* generate fatal error message to stderr, doesn't return */
 void fatal (int ret, char *format, ...) __attribute__ ((noreturn));
 void fatal (int ret, char *format, ...)
 {
   va_list ap;
   fprintf (stderr, "fatal error");
   if (format)
     {
       fprintf (stderr, ": ");
       va_start (ap, format);
       vfprintf (stderr, format, ap);
       va_end (ap);
     }
   else
     fprintf (stderr, "\n");
   if (ret == 1)
     usage ();
   close_input_file ();
   close_pdf_output_files ();
   exit (ret);
 }
 bool close_pdf_output_files (void)
 {
   output_file_t *o, *n;
   for (o = output_files; o; o = n)
     {
       n = o->next;
       pdf_close (o->pdf, PDF_PAGE_MODE_USE_OUTLINES);
       free (o->name);
       free (o);
     }
   out = NULL;
   output_files = NULL;
   return (1);
 }
 bool open_pdf_output_file (char *name,
 			   pdf_file_attributes_t *attributes)
 {
   output_file_t *o;
   if (out && (strcmp (name, out->name) == 0))
     return (1);
   for (o = output_files; o; o = o->next)
     if (strcmp (name, o->name) == 0)
       {
 	out = o;
 	return (1);
       }
   o = calloc (1, sizeof (output_file_t));
   if (! o)
     {
       fprintf (stderr, "can't calloc output file struct for '%s'\n", name);
       return (0);
    }
   o->name = strdup (name);
   if (! o->name)
     {
       fprintf (stderr, "can't strdup output filename '%s'\n", name);
       free (o);
       return (0);
     }
   o->pdf = pdf_create (name);
   if (! o->pdf)
     {
       fprintf (stderr, "can't open output file '%s'\n", name);
       free (o->name);
       free (o);
       return (0);
     }
   if (attributes->author)
     pdf_set_author (o->pdf, attributes->author);
   if (attributes->creator)
     pdf_set_creator (o->pdf, attributes->creator);
   if (attributes->title)
     pdf_set_title (o->pdf, attributes->title);
   if (attributes->subject)
     pdf_set_subject (o->pdf, attributes->subject);
   if (attributes->keywords)
     pdf_set_keywords (o->pdf, attributes->keywords);
   /* prepend new output file onto list */
   o->next = output_files;
   output_files = o;
   out = o;
   return (1);
 }
 bool process_page (int image,  /* range 1 .. n */
 		   input_attributes_t input_attributes,
 		   bookmark_t *bookmarks,
 		   page_label_t *page_label)
 {
   pdf_page_handle page;
   image_info_t image_info;
   if (! get_image_info (image, input_attributes, & image_info))
     return (0);
   page = pdf_new_page (out->pdf,
 		       image_info.width_points,
 		       image_info.height_points);
   if (! process_image (image, input_attributes, & image_info, page))
     return (0);
   while (bookmarks)
     {
       /* $$$ need to handle level here */
       pdf_new_bookmark (NULL, bookmarks->name, 0, page);
       bookmarks = bookmarks->next;
     }
   if (page_label)
     pdf_new_page_label (out->pdf,
 			page_label->page_index,
 			page_label->base,
 			page_label->count,
 			page_label->style,
 			page_label->prefix);
   return (page != NULL);
 }
 #define MAX_BOOKMARK_NAME_LEN 500
 static int filename_length_without_suffix (char *in_fn)
 {
   char *p;
   int len = strlen (in_fn);
   p = strrchr (in_fn, '.');
   if (p && ((strcasecmp (p, ".tif") == 0) ||
 	    (strcasecmp (p, ".tiff") == 0)))
     return (p - in_fn);
   return (len);
 }
 /* $$$ this function should ensure that it doesn't overflow the name string! */
 static void generate_bookmark_name (char *name,
 				    char *bookmark_fmt,
 				    char *in_fn,
 				    int page)
 {
   bool meta = 0;
   int len;
   while (*bookmark_fmt)
     {
       if (meta)
 	{
 	  meta = 0;
 	  switch (*bookmark_fmt)
 	    {
 	    case '%':
 	      *(name++) = '%';
 	      break;
 	    case 'F':
 	      len = filename_length_without_suffix (in_fn);
 	      strncpy (name, in_fn, len);
 	      name += len;
 	      break;
 	    case 'p':
 	      sprintf (name, "%d", page);
 	      name += strlen (name);
 	      break;
 	    default:
 	      break;
 	    }
 	}
       else
 	switch (*bookmark_fmt)
 	  {
 	  case '%':
 	    meta = 1;
 	    break;
 	  default:
 	    *(name++) = *bookmark_fmt;
 	  }
       bookmark_fmt++;
     }
   *name = '\0';
 }
 void main_args (char *out_fn,
 		int inf_count,
 		char **in_fn,
 		char *bookmark_fmt)
 {
   int i, ip;
   input_attributes_t input_attributes;
   pdf_file_attributes_t output_attributes;
   bookmark_t bookmark;
   char bookmark_name [MAX_BOOKMARK_NAME_LEN];
   bookmark.next = NULL;
   bookmark.level = 1;
   bookmark.name = & bookmark_name [0];
   memset (& input_attributes, 0, sizeof (input_attributes));
   memset (& output_attributes, 0, sizeof (output_attributes));
   if (! open_pdf_output_file (out_fn, & output_attributes))
     fatal (3, "error opening output file \"%s\"\n", out_fn);
   for (i = 0; i < inf_count; i++)
     {
       if (! open_input_file (in_fn [i]))
 	fatal (3, "error opening input file \"%s\"\n", in_fn [i]);
       for (ip = 1;; ip++)
 	{
 	  fprintf (stderr, "processing page %d of file \"%s\"\r", ip, in_fn [i]);
 	  if (bookmark_fmt)
 	    generate_bookmark_name (& bookmark_name [0],
 				    bookmark_fmt,
 				    in_fn [i],
 				    ip);
 	  if (! process_page (ip, input_attributes,
 			      bookmark_fmt ? & bookmark : NULL,
 			      NULL))
 	    fatal (3, "error processing page %d of input file \"%s\"\n", ip, in_fn [i]);
 	  if (last_input_page ())
 	    break;
 	}
       if (verbose)
 	fprintf (stderr, "processed %d pages of input file \"%s\"\n", ip, in_fn [i]);
       if (! close_input_file ())
 	fatal (3, "error closing input file \"%s\"\n", in_fn [i]);
     }
   if (! close_pdf_output_files ())
     fatal (3, "error closing output file \"%s\"\n", out_fn);
 }
 void main_control (char *control_fn)
 {
   if (! parse_control_file (control_fn))
     fatal (2, "error parsing control file\n");
   if (! process_controls ())
     fatal (3, "error processing control file\n");
 }
 int main (int argc, char *argv[])
 {
   char *control_fn = NULL;
   char *out_fn = NULL;
   char *bookmark_fmt = NULL;
   int inf_count = 0;
   char *in_fn [MAX_INPUT_FILES];
   progname = argv [0];
   pdf_init ();
   init_tiff_handler ();
   init_jpeg_handler ();
   while (--argc)
     {
       if (argv [1][0] == '-')
 	{
 	  if (strcmp (argv [1], "-v") == 0)
 	    verbose++;
 	  else if (strcmp (argv [1], "-o") == 0)
 	    {
 	      if (argc)
 		{
 		  argc--;
 		  argv++;
 		  out_fn = argv [1];
 		}
 	      else
 		fatal (1, "missing filename after \"-o\" option\n");
 	    }
 	  else if (strcmp (argv [1], "-c") == 0)
 	    {
 	      if (argc)
 		{
 		  argc--;
 		  argv++;
 		  control_fn = argv [1];
 		}
 	      else
 		fatal (1, "missing filename after \"-s\" option\n");
 	    }
 	  else if (strcmp (argv [1], "-b") == 0)
 	    {
 	      if (argc)
 		{
 		  argc--;
 		  argv++;
 		  bookmark_fmt = argv [1];
 		}
 	      else
 		fatal (1, "missing format string after \"-b\" option\n");
 	    }
 	  else
 	    fatal (1, "unrecognized option \"%s\"\n", argv [1]);
 	}
       else if (inf_count < MAX_INPUT_FILES)
 	in_fn [inf_count++] = argv [1];
       else
 	fatal (1, "exceeded maximum of %d input files\n", MAX_INPUT_FILES);
       argv++;
     }
   if (! ((! out_fn) ^ (! control_fn)))
     fatal (1, "either a control file or an output file (but not both) must be specified\n");
   if (out_fn && ! inf_count)
     fatal (1, "no input files specified\n");
   if (control_fn && inf_count)
     fatal (1, "if control file is provided, input files can't be specified as arguments\n");
   if (control_fn)
     main_control (control_fn);
   else
     main_args (out_fn, inf_count, in_fn, bookmark_fmt);
   close_input_file ();
   close_pdf_output_files ();
   exit (0);
 }

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tumble.c@752599b50ff3 (annotated)

tumble.c