/*

 * Pyrit Ray Tracer

 * file: common.h

 *

 * Radek Brich, 2006-2007

 */

#ifndef COMMON_H

#define COMMON_H

#include <stdio.h>

#include <stdarg.h>

#include <float.h>

#ifdef PYRIT_DOUBLE

# define Float double

# define Eps DBL_EPSILON

# define Inf DBL_MAX

#else

# define Float float

# define Eps 1e-6

# define Inf FLT_MAX

#endif

/* verbosity level:

0: only errors (E)

1: major status messages (*)

2: minor status, progress (-)

3: debug messages (D)

4: more debug

default = 2

*/

extern int pyrit_verbosity;

inline void dbgmsg(const int vlevel, const char *format, ...)

{

	if (pyrit_verbosity >= vlevel)

	{

		va_list ap;

		va_start(ap, format);

		vprintf(format, ap);

		va_end(ap);

		fflush(stdout);

	}

}

template<typename Type> const Type &min3(const Type &a, const Type &b, const Type &c)

{

	if (a <= b)

	{

		if (a <= c)

			return a;

		else

			return c;

	}

	else

	{

		if (b <= c)

			return b;

		else

			return c;

	}

}

template<typename Type> const Type &max3(const Type &a, const Type &b, const Type &c)

{

	if (a >= b)

	{

		if (a >= c)

			return a;

		else

			return c;

	}

	else

	{

		if (b >= c)

			return b;

		else

			return c;

	}

}

#endif