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/**
* Logging facility for debug/info messages.
* _EGL_FATAL messages are printed to stderr
* The EGL_LOG_LEVEL var controls the output of other warning/info/debug msgs.
*/
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "egllog.h"
#define MAXSTRING 1000
#define FALLBACK_LOG_LEVEL _EGL_WARNING
#define FALLBACK_LOG_LEVEL_STR "warning"
static EGLint ReportingLevel = -1;
static void
log_level_initialize(void)
{
#if defined(_EGL_PLATFORM_X)
char *log_env = getenv("EGL_LOG_LEVEL");
#else
char *log_env = NULL;
#endif
if (log_env == NULL) {
ReportingLevel = FALLBACK_LOG_LEVEL;
}
else if (strcasecmp(log_env, "fatal") == 0) {
ReportingLevel = _EGL_FATAL;
}
else if (strcasecmp(log_env, "warning") == 0) {
ReportingLevel = _EGL_WARNING;
}
else if (strcasecmp(log_env, "info") == 0) {
ReportingLevel = _EGL_INFO;
}
else if (strcasecmp(log_env, "debug") == 0) {
ReportingLevel = _EGL_DEBUG;
}
else {
fprintf(stderr, "Unrecognized EGL_LOG_LEVEL environment variable value. "
"Expected one of \"fatal\", \"warning\", \"info\", \"debug\". "
"Got \"%s\". Falling back to \"%s\".\n",
log_env, FALLBACK_LOG_LEVEL_STR);
ReportingLevel = FALLBACK_LOG_LEVEL;
}
}
/**
* Log a message to stderr.
* \param level one of _EGL_FATAL, _EGL_WARNING, _EGL_INFO, _EGL_DEBUG.
*/
void
_eglLog(EGLint level, const char *fmtStr, ...)
{
va_list args;
char msg[MAXSTRING];
const char *levelStr;
static int log_level_initialized = 0;
if (!log_level_initialized) {
log_level_initialize();
log_level_initialized = 1;
}
if (level <= ReportingLevel) {
switch (level) {
case _EGL_FATAL:
levelStr = "Fatal";
break;
case _EGL_WARNING:
levelStr = "Warning";
break;
case _EGL_INFO:
levelStr = "Info";
break;
case _EGL_DEBUG:
levelStr = "Debug";
break;
default:
levelStr = "";
}
va_start(args, fmtStr);
vsnprintf(msg, MAXSTRING, fmtStr, args);
va_end(args);
fprintf(stderr, "libEGL %s: %s\n", levelStr, msg);
if (level == _EGL_FATAL) {
exit(1); /* or abort()? */
}
}
}
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