/*

 * Copyright (c) 2005, Herve Drolon, FreeImage Team

 * Copyright (c) 2008;2011-2012, Centre National d'Etudes Spatiales (CNES), France 

 * Copyright (c) 2012, CS Systemes d'Information, France

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'

 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE

 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 */

#include "opj_includes.h"

/* ==========================================================

     Utility functions

   ==========================================================*/

#ifdef OPJ_CODE_NOT_USED

#ifndef _WIN32

static char*

i2a(unsigned i, char *a, unsigned r) {

  if (i/r > 0) a = i2a(i/r,a,r);

  *a = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"[i%r];

  return a+1;

}

/** 

 Transforms integer i into an ascii string and stores the result in a; 

 string is encoded in the base indicated by r.

 @param i Number to be converted

 @param a String result

 @param r Base of value; must be in the range 2 - 36

 @return Returns a

*/

static char *

_itoa(int i, char *a, int r) {

  r = ((r < 2) || (r > 36)) ? 10 : r;

  if(i < 0) {

    *a = '-';

    *i2a(-i, a+1, r) = 0;

  }

  else *i2a(i, a, r) = 0;

  return a;

}

#endif /* !_WIN32 */

#endif

/* ----------------------------------------------------------------------- */

/**

 * Default callback function.

 * Do nothing.

 */

static void opj_default_callback (const char *msg, void *client_data)

{

    OPJ_ARG_NOT_USED(msg);

    OPJ_ARG_NOT_USED(client_data);

}

/* ----------------------------------------------------------------------- */

/* ----------------------------------------------------------------------- */

OPJ_BOOL opj_event_msg(opj_event_mgr_t* p_event_mgr, OPJ_INT32 event_type, const char *fmt, ...) {

#define OPJ_MSG_SIZE 512 /* 512 bytes should be more than enough for a short message */

  opj_msg_callback msg_handler = 00;

  void * l_data = 00;

  if(p_event_mgr != 00) {

    switch(event_type) {

      case EVT_ERROR:

        msg_handler = p_event_mgr->error_handler;

        l_data = p_event_mgr->m_error_data;

        break;

      case EVT_WARNING:

        msg_handler = p_event_mgr->warning_handler;

        l_data = p_event_mgr->m_warning_data;

        break;

      case EVT_INFO:

        msg_handler = p_event_mgr->info_handler;

        l_data = p_event_mgr->m_info_data;

        break;

      default:

        break;

    }

    if(msg_handler == 00) {

      return OPJ_FALSE;

    }

  } else {

    return OPJ_FALSE;

  }

  if ((fmt != 00) && (p_event_mgr != 00)) {

    va_list arg;

    size_t str_length/*, i, j*/; /* UniPG */

    char message[OPJ_MSG_SIZE];

    memset(message, 0, OPJ_MSG_SIZE);

    /* initialize the optional parameter list */

    va_start(arg, fmt);

    /* check the length of the format string */

    str_length = (strlen(fmt) > OPJ_MSG_SIZE) ? OPJ_MSG_SIZE : strlen(fmt);

        (void)str_length;

    /* parse the format string and put the result in 'message' */

    vsprintf(message, fmt, arg); /* UniPG */

    /* deinitialize the optional parameter list */

    va_end(arg);

    /* output the message to the user program */

    msg_handler(message, l_data);

  }

  return OPJ_TRUE;

}

void opj_set_default_event_handler(opj_event_mgr_t * p_manager)

{

  p_manager->m_error_data = 00;

  p_manager->m_warning_data = 00;

  p_manager->m_info_data = 00;

  p_manager->error_handler = opj_default_callback;

  p_manager->info_handler = opj_default_callback;

  p_manager->warning_handler = opj_default_callback;

}