1 /**************************************************************************
3 * Copyright 2008 VMware, Inc.
4 * Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com>
5 * Copyright 2010 LunarG, Inc.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the
10 * "Software"), to deal in the Software without restriction, including
11 * without limitation the rights to use, copy, modify, merge, publish,
12 * distribute, sub license, and/or sell copies of the Software, and to
13 * permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
16 * The above copyright notice and this permission notice (including the
17 * next paragraph) shall be included in all copies or substantial portions
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
25 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
26 * DEALINGS IN THE SOFTWARE.
28 **************************************************************************/
32 * Logging facility for debug/info messages.
33 * _EGL_FATAL messages are printed to stderr
34 * The EGL_LOG_LEVEL var controls the output of other warning/info/debug msgs.
43 #include "c11/threads.h"
44 #include "util/macros.h"
48 #ifdef HAVE_ANDROID_PLATFORM
49 #define LOG_TAG "EGL-MAIN"
50 #include <cutils/log.h>
52 /* support versions < JellyBean */
63 #endif /* HAVE_ANDROID_PLATFORM */
65 #define MAXSTRING 1000
66 #define FALLBACK_LOG_LEVEL _EGL_WARNING
72 EGLBoolean initialized
;
80 static const char *level_strings
[] = {
81 /* the order is important */
90 * The default logger. It prints the message to stderr.
93 _eglDefaultLogger(EGLint level
, const char *msg
)
95 #ifdef HAVE_ANDROID_PLATFORM
107 LOG_FATAL("%s", msg
);
113 fprintf(stderr
, "libEGL %s: %s\n", level_strings
[level
], msg
);
114 #endif /* HAVE_ANDROID_PLATFORM */
119 * Initialize the logging facility.
125 EGLint i
, level
= -1;
127 if (logging
.initialized
)
130 log_env
= getenv("EGL_LOG_LEVEL");
132 for (i
= 0; i
< ARRAY_SIZE(level_strings
); i
++) {
133 if (strcasecmp(log_env
, level_strings
[i
]) == 0) {
140 logging
.level
= (level
>= 0) ? level
: FALLBACK_LOG_LEVEL
;
141 logging
.initialized
= EGL_TRUE
;
143 /* it is fine to call _eglLog now */
144 if (log_env
&& level
< 0) {
145 _eglLog(_EGL_WARNING
,
146 "Unrecognized EGL_LOG_LEVEL environment variable value. "
147 "Expected one of \"fatal\", \"warning\", \"info\", \"debug\". "
148 "Got \"%s\". Falling back to \"%s\".",
149 log_env
, level_strings
[FALLBACK_LOG_LEVEL
]);
155 * Log a message with message logger.
156 * \param level one of _EGL_FATAL, _EGL_WARNING, _EGL_INFO, _EGL_DEBUG.
159 _eglLog(EGLint level
, const char *fmtStr
, ...)
165 /* one-time initialization; a little race here is fine */
166 if (!logging
.initialized
)
168 if (level
> logging
.level
|| level
< 0)
171 mtx_lock(&logging
.mutex
);
173 va_start(args
, fmtStr
);
174 ret
= vsnprintf(msg
, MAXSTRING
, fmtStr
, args
);
175 if (ret
< 0 || ret
>= MAXSTRING
)
176 strcpy(msg
, "<message truncated>");
179 _eglDefaultLogger(level
, msg
);
181 mtx_unlock(&logging
.mutex
);
183 if (level
== _EGL_FATAL
)
184 exit(1); /* or abort()? */