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      1 /*
      2  * The copyright in this software is being made available under the 2-clauses
      3  * BSD License, included below. This software may be subject to other third
      4  * party and contributor rights, including patent rights, and no such rights
      5  * are granted under this license.
      6  *
      7  * Copyright (c) 2005, Herve Drolon, FreeImage Team
      8  * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR
      9  * Copyright (c) 2012, CS Systemes d'Information, France
     10  * All rights reserved.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
     22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
     25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     31  * POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #include "opj_includes.h"
     35 
     36 /* ==========================================================
     37      Utility functions
     38    ==========================================================*/
     39 
     40 #ifdef OPJ_CODE_NOT_USED
     41 #ifndef _WIN32
     42 static char*
     43 i2a(unsigned i, char *a, unsigned r)
     44 {
     45     if (i / r > 0) {
     46         a = i2a(i / r, a, r);
     47     }
     48     *a = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"[i % r];
     49     return a + 1;
     50 }
     51 
     52 /**
     53  Transforms integer i into an ascii string and stores the result in a;
     54  string is encoded in the base indicated by r.
     55  @param i Number to be converted
     56  @param a String result
     57  @param r Base of value; must be in the range 2 - 36
     58  @return Returns a
     59 */
     60 static char *
     61 _itoa(int i, char *a, int r)
     62 {
     63     r = ((r < 2) || (r > 36)) ? 10 : r;
     64     if (i < 0) {
     65         *a = '-';
     66         *i2a(-i, a + 1, r) = 0;
     67     } else {
     68         *i2a(i, a, r) = 0;
     69     }
     70     return a;
     71 }
     72 
     73 #endif /* !_WIN32 */
     74 #endif
     75 
     76 /* ----------------------------------------------------------------------- */
     77 /**
     78  * Default callback function.
     79  * Do nothing.
     80  */
     81 static void opj_default_callback(const char *msg, void *client_data)
     82 {
     83     OPJ_ARG_NOT_USED(msg);
     84     OPJ_ARG_NOT_USED(client_data);
     85 }
     86 
     87 /* ----------------------------------------------------------------------- */
     88 
     89 
     90 /* ----------------------------------------------------------------------- */
     91 OPJ_BOOL opj_event_msg(opj_event_mgr_t* p_event_mgr, OPJ_INT32 event_type,
     92                        const char *fmt, ...)
     93 {
     94 #define OPJ_MSG_SIZE 512 /* 512 bytes should be more than enough for a short message */
     95     opj_msg_callback msg_handler = 00;
     96     void * l_data = 00;
     97 
     98     if (p_event_mgr != 00) {
     99         switch (event_type) {
    100         case EVT_ERROR:
    101             msg_handler = p_event_mgr->error_handler;
    102             l_data = p_event_mgr->m_error_data;
    103             break;
    104         case EVT_WARNING:
    105             msg_handler = p_event_mgr->warning_handler;
    106             l_data = p_event_mgr->m_warning_data;
    107             break;
    108         case EVT_INFO:
    109             msg_handler = p_event_mgr->info_handler;
    110             l_data = p_event_mgr->m_info_data;
    111             break;
    112         default:
    113             break;
    114         }
    115         if (msg_handler == 00) {
    116             return OPJ_FALSE;
    117         }
    118     } else {
    119         return OPJ_FALSE;
    120     }
    121 
    122     if ((fmt != 00) && (p_event_mgr != 00)) {
    123         va_list arg;
    124         char message[OPJ_MSG_SIZE];
    125         memset(message, 0, OPJ_MSG_SIZE);
    126         /* initialize the optional parameter list */
    127         va_start(arg, fmt);
    128         /* parse the format string and put the result in 'message' */
    129         vsnprintf(message, OPJ_MSG_SIZE, fmt, arg);
    130         /* force zero termination for Windows _vsnprintf() of old MSVC */
    131         message[OPJ_MSG_SIZE - 1] = '\0';
    132         /* deinitialize the optional parameter list */
    133         va_end(arg);
    134 
    135         /* output the message to the user program */
    136         msg_handler(message, l_data);
    137     }
    138 
    139     return OPJ_TRUE;
    140 }
    141 
    142 void opj_set_default_event_handler(opj_event_mgr_t * p_manager)
    143 {
    144     p_manager->m_error_data = 00;
    145     p_manager->m_warning_data = 00;
    146     p_manager->m_info_data = 00;
    147     p_manager->error_handler = opj_default_callback;
    148     p_manager->info_handler = opj_default_callback;
    149     p_manager->warning_handler = opj_default_callback;
    150 }
    151 
    152