+#include <stdio.h>
+#include <stdarg.h>
+#include "logger.h"
+#include "ui.h"
+
+#if defined(unix) || defined(__unix__) || defined(__APPLE__)
+#include <unistd.h>
+#elif defined(WIN32)
+#include <windows.h>
+#endif
+
+#define UI_MSG_TIMEOUT 4000
+
+enum { LOG_INFO, LOG_WARNING, LOG_ERROR, LOG_FATAL, LOG_DEBUG };
+
+static int typecolor(int type);
+
+static FILE *fp = stdout;
+
+static void logmsg(int type, const char *fmt, va_list ap)
+{
+#if defined(unix) || defined(__unix__) || (defined(__APPLE__) && !defined(TARGET_IPHONE))
+ if(isatty(fileno(fp)) && type != LOG_INFO) {
+ int c = typecolor(type);
+ fprintf(fp, "\033[%dm", c);
+ vfprintf(fp, fmt, ap);
+ fprintf(fp, "\033[0m");
+ } else
+#endif
+ {
+ vfprintf(fp, fmt, ap);
+ }
+ if(type == LOG_ERROR || type == LOG_FATAL || type == LOG_DEBUG) {
+ fflush(fp);
+ }
+
+#ifdef WIN32
+ if(type == LOG_FATAL) {
+ static char msgbuf[1024];
+ vsnprintf(msgbuf, sizeof msgbuf - 1, fmt, ap);
+ msgbuf[sizeof msgbuf - 1] = 0;
+ MessageBox(0, msgbuf, "Fatal error", MB_OK | MB_ICONSTOP);
+ }
+#endif
+}
+
+extern "C" void info_log(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ logmsg(LOG_INFO, fmt, ap);
+ va_end(ap);
+}
+
+extern "C" void warning_log(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ logmsg(LOG_WARNING, fmt, ap);
+ va_end(ap);
+
+ va_start(ap, fmt);
+ show_messagev(UI_MSG_TIMEOUT, Vec3(1.0, 0.8, 0.1), fmt, ap);
+ va_end(ap);
+}
+
+extern "C" void error_log(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ logmsg(LOG_ERROR, fmt, ap);
+ va_end(ap);
+
+ va_start(ap, fmt);
+ show_messagev(UI_MSG_TIMEOUT, Vec3(1.0, 0.1, 0.1), fmt, ap);
+ va_end(ap);
+}
+
+extern "C" void fatal_log(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ logmsg(LOG_FATAL, fmt, ap);
+ va_end(ap);
+}
+
+extern "C" void debug_log(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ logmsg(LOG_DEBUG, fmt, ap);
+ va_end(ap);
+}
+
+enum {
+ BLACK = 0,
+ RED,
+ GREEN,
+ YELLOW,
+ BLUE,
+ MAGENTA,
+ CYAN,
+ WHITE
+};
+
+#define ANSI_FGCOLOR(x) (30 + (x))
+#define ANSI_BGCOLOR(x) (40 + (x))
+
+static int typecolor(int type)
+{
+ switch(type) {
+ case LOG_ERROR:
+ return ANSI_FGCOLOR(RED);
+ case LOG_FATAL:
+ return ANSI_FGCOLOR(RED); // TODO differentiate from LOG_ERROR
+ case LOG_WARNING:
+ return ANSI_FGCOLOR(YELLOW);
+ case LOG_DEBUG:
+ return ANSI_FGCOLOR(MAGENTA);
+ default:
+ break;
+ }
+ return 37;
+}