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/* $Id$ */

#ifndef DEBUG_H
#define DEBUG_H

/* Debugging messages policy:
 * These should be the severities used for direct DEBUG() calls
 * maximum debugging level should be 10 if really deep, deep
 * debugging is needed.
 * (there is room for exceptions, but you have to have a good cause):
 * 0   - errors or severe warnings
 * 1   - other non-fatal, non-severe warnings
 * 2   - crude progress indicator of functionality
 * 3   - important debugging messages (function entry)
 * 4   - debugging messages (crude loop status, etc.)
 * 5   - detailed debugging information
 * 6.. - extremely detailed spamming
 */

#ifdef NO_DEBUG_MESSAGES
	#define DEBUG(name, level, ...)
#else
	#if defined(__GNUC__) && (__GNUC__ < 3)
		#define DEBUG(name, level, args...) if ((level == 0) || ( _debug_ ## name ## _level >= level)) debug(#name, args)
	#else
		#define DEBUG(name, level, ...) if (level == 0 || _debug_ ## name ## _level >= level) debug(#name, __VA_ARGS__)
	#endif

	extern int _debug_ai_level;
	extern int _debug_driver_level;
	extern int _debug_grf_level;
	extern int _debug_map_level;
	extern int _debug_misc_level;
	extern int _debug_ms_level;
	extern int _debug_net_level;
	extern int _debug_sprite_level;
	extern int _debug_oldloader_level;
	extern int _debug_ntp_level;
	extern int _debug_npf_level;
	extern int _debug_yapf_level;
	extern int _debug_freetype_level;
	extern int _debug_sl_level;
#endif

void CDECL debug(const char *dbg, ...);

void SetDebugString(const char *s);
const char *GetDebugString(void);

/* MSVCRT of course has to have a different syntax for long long *sigh* */
#if defined(_MSC_VER) || defined(__MINGW32__)
# define OTTD_PRINTF64 "I64"
#else
# define OTTD_PRINTF64 "ll"
#endif

// Used for profiling
#define TIC() {\
	extern uint64 _rdtsc(void);\
	uint64 _xxx_ = _rdtsc();\
	static uint64 __sum__ = 0;\
	static uint32 __i__ = 0;

#define TOC(str, count)\
	__sum__ += _rdtsc() - _xxx_;\
	if (++__i__ == count) {\
		DEBUG(misc, 0, "[%s] %" OTTD_PRINTF64 "u [avg: %.1f]\n", str, __sum__, __sum__/(double)__i__);\
		__i__ = 0;\
		__sum__ = 0;\
	}\
}

#endif /* DEBUG_H */