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#ifndef GFX_INCLUDED // -*- C++ -*-
#define GFX_INCLUDED
#if !defined(__GNUC__)
# pragma once
#endif
/************************************************************************
Main header file for the libgfx graphics library.
$Id: gfx.h 455 2005-08-17 18:10:25Z garland $
************************************************************************/
#if defined(HAVE_CONFIG_H)
# include "config.h"
#elif defined(_MSC_VER)
# include "config-vc.h"
#elif defined(__APPLE__)
# include "config-osx.h"
#endif
#include <cstdlib>
#include <cmath>
#include <climits>
#include <iostream>
////////////////////////////////////////////////////////////////////////
//
// Standards notwithstanding, not all platforms define exactly the
// same things in their header files. We try to compensate here.
//
#if !defined(HAVE_BOOL)
typedef int bool;
const bool false = 0;
const bool true = 1;
#endif
// Microsoft doesn't define std::min() & std::max() because it conflicts with
// <windef.h>, and their _MIN/_MAX macro workarounds don't add the std::
// namespace qualification. These macros provide a uniform way of getting
// around this problem.
//
#if defined(_MSC_VER)
# define MIN(a,b) std::_cpp_min(a,b)
# define MAX(a,b) std::_cpp_max(a,b)
#else
# if defined(__CYGWIN__)
# define NOMINMAX
# endif
# define MIN(a,b) std::min(a,b)
# define MAX(a,b) std::max(a,b)
#endif
#ifndef M_PI
# define M_PI 3.14159265358979323846264338327950288419716939937510582097494459
#endif
#if !defined(HUGE) && defined(HUGE_VAL)
# define HUGE HUGE_VAL
#endif
#if !defined(HAVE_RINT)
inline double rint(double x) { return floor(x + 0.5); }
#endif
////////////////////////////////////////////////////////////////////////
//
//
//
namespace gfx
{
#if defined(HAVE_RANDOM)
inline double random1() { return (double)random() / (double)LONG_MAX; }
inline char random_byte() { return (char)(random() & 0xff); }
#else
inline double random1() { return (double)rand() / (double)RAND_MAX; }
inline char random_byte() { return (char)(rand() & 0xff); }
#endif
const double FEQ_EPS = 1e-6;
const double FEQ_EPS2 = 1e-12;
inline bool FEQ(double a, double b, double e=FEQ_EPS) {return fabs(a-b)<e;}
inline bool FEQ2(double a, double b, double e=FEQ_EPS2) {return fabs(a-b)<e;}
////////////////////////////////////////////////////////////////////////
//
//
//
#define TIMING(t, cmd) { t=get_cpu_time(); cmd; t=get_cpu_time() - t; }
extern double get_cpu_time();
} // namespace gfx
#ifndef GFX_NAMESPACE
using namespace gfx;
#endif
// GFX_INCLUDED
#endif
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