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/*
* Copyright (c) 2005, Herv Drolon, FreeImage Team
* 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
==========================================================*/
#if !defined(_MSC_VER) && !defined(__MINGW32__)
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 */
/* ----------------------------------------------------------------------- */
opj_event_mgr_t* OPJ_CALLCONV opj_set_event_mgr(opj_common_ptr cinfo, opj_event_mgr_t *event_mgr, void *context) {
if(cinfo) {
opj_event_mgr_t *previous = cinfo->event_mgr;
cinfo->event_mgr = event_mgr;
cinfo->client_data = context;
return previous;
}
return NULL;
}
bool opj_event_msg(opj_common_ptr cinfo, int event_type, const char *fmt, ...) {
#define MSG_SIZE 512 /* 512 bytes should be more than enough for a short message */
opj_msg_callback msg_handler = NULL;
opj_event_mgr_t *event_mgr = cinfo->event_mgr;
if(event_mgr != NULL) {
switch(event_type) {
case EVT_ERROR:
msg_handler = event_mgr->error_handler;
break;
case EVT_WARNING:
msg_handler = event_mgr->warning_handler;
break;
case EVT_INFO:
msg_handler = event_mgr->info_handler;
break;
default:
break;
}
if(msg_handler == NULL) {
return false;
}
} else {
return false;
}
if ((fmt != NULL) && (event_mgr != NULL)) {
va_list arg;
int str_length, i, j;
char message[MSG_SIZE];
memset(message, 0, MSG_SIZE);
/* initialize the optional parameter list */
va_start(arg, fmt);
/* check the length of the format string */
str_length = (int)((strlen(fmt) > MSG_SIZE) ? MSG_SIZE : strlen(fmt));
/* parse the format string and put the result in 'message' */
for (i = 0, j = 0; i < str_length; ++i) {
if (fmt[i] == '%') {
if (i + 1 < str_length) {
switch(tolower((int) fmt[i + 1])) {
case '%' :
message[j++] = '%';
break;
case 'o' : /* octal numbers */
{
char tmp[16];
_itoa(va_arg(arg, int), tmp, 8);
strcat(message, tmp);
j += (int)strlen(tmp);
++i;
break;
}
case 'i' : /* decimal numbers */
case 'd' :
{
char tmp[16];
_itoa(va_arg(arg, int), tmp, 10);
strcat(message, tmp);
j += (int)strlen(tmp);
++i;
break;
}
case 'x' : /* hexadecimal numbers */
{
char tmp[16];
_itoa(va_arg(arg, int), tmp, 16);
strcat(message, tmp);
j += (int)strlen(tmp);
++i;
break;
}
case 's' : /* strings */
{
char *tmp = va_arg(arg, char*);
strcat(message, tmp);
j += (int)strlen(tmp);
++i;
break;
}
case 'f' : /* floats */
{
char tmp[16];
double value = va_arg(arg, double);
sprintf(tmp, "%f", value);
strcat(message, tmp);
j += (int)strlen(tmp);
++i;
break;
}
};
} else {
message[j++] = fmt[i];
}
} else {
message[j++] = fmt[i];
};
}
/* deinitialize the optional parameter list */
va_end(arg);
/* output the message to the user program */
msg_handler(message, cinfo->client_data);
}
return true;
}
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