pstoraster/sjpegerr.c

   1 /*
   2   Copyright 1993-2001 by Easy Software Products
   3   Copyright (C) 1994, 1995, 1998 Aladdin Enterprises.  All rights reserved.
   4
   5   This file is part of GNU Ghostscript.
   6
   7   GNU Ghostscript is distributed in the hope that it will be useful, but
   8   WITHOUT ANY WARRANTY.  No author or distributor accepts responsibility
   9   to anyone for the consequences of using it or for whether it serves any
  10   particular purpose or works at all, unless he says so in writing.  Refer
  11   to the GNU General Public License for full details.
  12
  13   Everyone is granted permission to copy, modify and redistribute GNU
  14   Ghostscript, but only under the conditions described in the GNU General
  15   Public License.  A copy of this license is supposed to have been given
  16   to you along with GNU Ghostscript so you can know your rights and
  17   responsibilities.  It should be in a file named COPYING.  Among other
  18   things, the copyright notice and this notice must be preserved on all
  19   copies.
  20
  21   Aladdin Enterprises supports the work of the GNU Project, but is not
  22   affiliated with the Free Software Foundation or the GNU Project.  GNU
  23   Ghostscript, as distributed by Aladdin Enterprises, does not require any
  24   GNU software to build or run it.
  25 */
  26
  27 #include <config.h>
  28 #ifdef HAVE_LIBJPEG
  29 /*$Id$ */
  30 /* IJG error message table for Ghostscript. */
  31 #include "stdio_.h"
  32 #include "jpeglib.h"
  33
  34 /*
  35  * MRS - these are normally found in jversion.h, however it seems that
  36  * many vendors (Red Hat, SGI, etc.) do not distribute it...
  37  *
  38  * The following definitions come from the 6B distribution...
  39  */
  40
  41 #define JVERSION        "6b  27-Mar-1998"
  42 #define JCOPYRIGHT      "Copyright (C) 1998, Thomas G. Lane"
  43
  44 /*
  45  * This file exists solely to hold the rather large IJG error message string
  46  * table (now about 4K, and likely to grow in future releases).  The table
  47  * is large enough that we don't want it to be in the default data segment
  48  * in a 16-bit executable.
  49  *
  50  * In IJG version 5 and earlier, under Borland C, this is accomplished simply
  51  * by compiling this one file in "huge" memory model rather than "large".
  52  * The string constants will then go into a private far data segment.
  53  * In less brain-damaged architectures, this file is simply compiled normally,
  54  * and we pay only the price of one extra function call.
  55  *
  56  * In IJG version 5a and later, under Borland C, this is accomplished by making
  57  * each string be a separate variable that's explicitly declared "far".
  58  * (What a crock...)
  59  *
  60  * This must be a separate file to avoid duplicate-symbol errors, since we
  61  * use the IJG message code names as variables rather than as enum constants.
  62  */
  63
  64 #if JPEG_LIB_VERSION <= 50      /**************** *************** */
  65
  66 #include "jerror.h"             /* get error codes */
  67 #define JMAKE_MSG_TABLE
  68 #include "jerror.h"             /* create message string table */
  69
  70 #define jpeg_std_message_table jpeg_message_table
  71
  72 #else   /* JPEG_LIB_VERSION >= 51 */ /**************** *************** */
  73
  74 /* Create a static const char[] variable for each message string. */
  75
  76 #define JMESSAGE(code,string)   static const char code[] = string;
  77
  78 #include "jerror.h"
  79
  80 /* Now build an array of pointers to same. */
  81
  82 #define JMESSAGE(code,string)   code ,
  83
  84 static const char *const jpeg_std_message_table[] =
  85 {
  86 #include "jerror.h"
  87     NULL
  88 };
  89
  90 #endif  /* JPEG_LIB_VERSION */ /**************** *************** */
  91
  92 /*
  93  * Return a pointer to the message table.
  94  * It is unsafe to do much more than this within the "huge" environment.
  95  */
  96
  97 const char *const *
  98 gs_jpeg_message_table(void)
  99 {
 100     return jpeg_std_message_table;
 101 }
 102 #endif /* HAVE_LIBJPEG */