1 /*
2 * Copyright (c) 2005, Herv� Drolon, FreeImage Team
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
18 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24 * POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include "opj_includes.h"
28
29 /* ==========================================================
30 Utility functions
31 ==========================================================*/
32
33 #ifndef _WIN32
34 static char*
i2a(unsigned i,char * a,unsigned r)35 i2a(unsigned i, char *a, unsigned r) {
36 if (i/r > 0) a = i2a(i/r,a,r);
37 *a = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"[i%r];
38 return a+1;
39 }
40
41 /**
42 Transforms integer i into an ascii string and stores the result in a;
43 string is encoded in the base indicated by r.
44 @param i Number to be converted
45 @param a String result
46 @param r Base of value; must be in the range 2 - 36
47 @return Returns a
48 */
49 static char *
_itoa(int i,char * a,int r)50 _itoa(int i, char *a, int r) {
51 r = ((r < 2) || (r > 36)) ? 10 : r;
52 if(i < 0) {
53 *a = '-';
54 *i2a(-i, a+1, r) = 0;
55 }
56 else *i2a(i, a, r) = 0;
57 return a;
58 }
59
60 #endif /* !_WIN32 */
61
62 /* ----------------------------------------------------------------------- */
63
opj_set_event_mgr(opj_common_ptr cinfo,opj_event_mgr_t * event_mgr,void * context)64 opj_event_mgr_t* OPJ_CALLCONV opj_set_event_mgr(opj_common_ptr cinfo, opj_event_mgr_t *event_mgr, void *context) {
65 if(cinfo) {
66 opj_event_mgr_t *previous = cinfo->event_mgr;
67 cinfo->event_mgr = event_mgr;
68 cinfo->client_data = context;
69 return previous;
70 }
71
72 return NULL;
73 }
74
opj_event_msg(opj_common_ptr cinfo,int event_type,const char * fmt,...)75 bool opj_event_msg(opj_common_ptr cinfo, int event_type, const char *fmt, ...) {
76 #define MSG_SIZE 512 /* 512 bytes should be more than enough for a short message */
77 opj_msg_callback msg_handler = NULL;
78
79 opj_event_mgr_t *event_mgr = cinfo->event_mgr;
80 if(event_mgr != NULL) {
81 switch(event_type) {
82 case EVT_ERROR:
83 msg_handler = event_mgr->error_handler;
84 break;
85 case EVT_WARNING:
86 msg_handler = event_mgr->warning_handler;
87 break;
88 case EVT_INFO:
89 msg_handler = event_mgr->info_handler;
90 break;
91 default:
92 break;
93 }
94 if(msg_handler == NULL) {
95 return false;
96 }
97 } else {
98 return false;
99 }
100
101 if ((fmt != NULL) && (event_mgr != NULL)) {
102 va_list arg;
103 int str_length/*, i, j*/; /* UniPG */
104 char message[MSG_SIZE];
105 memset(message, 0, MSG_SIZE);
106 /* initialize the optional parameter list */
107 va_start(arg, fmt);
108 /* check the length of the format string */
109 str_length = (strlen(fmt) > MSG_SIZE) ? MSG_SIZE : strlen(fmt);
110 /* parse the format string and put the result in 'message' */
111 vsprintf(message, fmt, arg); /* UniPG */
112 /* deinitialize the optional parameter list */
113 va_end(arg);
114
115 /* output the message to the user program */
116 msg_handler(message, cinfo->client_data);
117 }
118
119 return true;
120 }
121
122