#ifndef __glut_h__
#define __glut_h__

/* Copyright (c) Mark J. Kilgard, 1994, 1995, 1996, 1998. */

/* This program is freely distributable without licensing fees  and is
   provided without guarantee or warrantee expressed or  implied. This
   program is -not- in the public domain. */

#if defined(_WIN32)

/* GLUT 3.7 now tries to avoid including <windows.h>
   to avoid name space pollution, but Win32's <GL/gl.h> 
   needs APIENTRY and WINGDIAPI defined properly. */
# if 0
   /* This would put tons of macros and crap in our clean name space. */
#  define  WIN32_LEAN_AND_MEAN
#  include <windows.h>
# else
   /* XXX This is from Win32's <windef.h> */
#  ifndef APIENTRY
#   define GLUT_APIENTRY_DEFINED
#   if (_MSC_VER >= 800) || defined(_STDCALL_SUPPORTED) || defined(__BORLANDC__)
#    define APIENTRY    __stdcall
#   else
#    define APIENTRY
#   endif
#  endif
   /* XXX This is from Win32's <winnt.h> */
#  ifndef CALLBACK
#   if (defined(_M_MRX000) || defined(_M_IX86) || defined(_M_ALPHA) || defined(_M_PPC)) && !defined(MIDL_PASS)
#    define CALLBACK __stdcall
#   else
#    define CALLBACK
#   endif
#  endif
   /* XXX This is from Win32's <wingdi.h> and <winnt.h> */
#  ifndef WINGDIAPI
#   define GLUT_WINGDIAPI_DEFINED
#   define WINGDIAPI __declspec(dllimport)
#  endif
   /* XXX This is from Win32's <ctype.h> */
#  ifndef _WCHAR_T_DEFINED
typedef unsigned short wchar_t;
#   define _WCHAR_T_DEFINED
#  endif
# endif

/* To disable automatic library usage for GLUT, define GLUT_NO_LIB_PRAGMA
   in your compile preprocessor options. */
# if !defined(GLUT_BUILDING_LIB) && !defined(GLUT_NO_LIB_PRAGMA)
#  pragma comment (lib, "winmm.lib")      /* link with Windows MultiMedia lib */
/* To enable automatic SGI OpenGL for Windows library usage for GLUT,
   define GLUT_USE_SGI_OPENGL in your compile preprocessor options.  */
#  ifdef GLUT_USE_SGI_OPENGL
#   pragma comment (lib, "opengl.lib")    /* link with SGI OpenGL for Windows lib */
#   pragma comment (lib, "glu.lib")       /* link with SGI OpenGL Utility lib */
#   pragma comment (lib, "glut.lib")      /* link with Win32 GLUT for SGI OpenGL lib */
#  else
#   pragma comment (lib, "opengl32.lib")  /* link with Microsoft OpenGL lib */
#   pragma comment (lib, "glu32.lib")     /* link with Microsoft OpenGL Utility lib */
#   pragma comment (lib, "glut32.lib")    /* link with Win32 GLUT lib */
#  endif
# endif

/* To disable supression of annoying warnings about floats being promoted
   to doubles, define GLUT_NO_WARNING_DISABLE in your compile preprocessor
   options. */
# ifndef GLUT_NO_WARNING_DISABLE
#  pragma warning (disable:4244)  /* Disable bogus VC++ 4.2 conversion warnings. */
#  pragma warning (disable:4305)  /* VC++ 5.0 version of above warning. */
# endif

/* Win32 has an annoying issue where there are multiple C run-time
   libraries (CRTs).  If the executable is linked with a different CRT
   from the GLUT DLL, the GLUT DLL will not share the same CRT static
   data seen by the executable.  In particular, atexit callbacks registered
   in the executable will not be called if GLUT calls its (different)
   exit routine).  GLUT is typically built with the
   "/MD" option (the CRT with multithreading DLL support), but the Visual
   C++ linker default is "/ML" (the single threaded CRT).

   One workaround to this issue is requiring users to always link with
   the same CRT as GLUT is compiled with.  That requires users supply a
   non-standard option.  GLUT 3.7 has its own built-in workaround where
   the executable's "exit" function pointer is covertly passed to GLUT.
   GLUT then calls the executable's exit function pointer to ensure that
   any "atexit" calls registered by the application are called if GLUT
   needs to exit.

   Note that the __glut*WithExit routines should NEVER be called directly.
   To avoid the atexit workaround, #define GLUT_DISABLE_ATEXIT_HACK. */

/* XXX This is from Win32's <process.h> */
# if !defined(_MSC_VER) && !defined(__cdecl)
   /* Define __cdecl for non-Microsoft compilers. */
#  define __cdecl
#  define GLUT_DEFINED___CDECL
# endif
# ifndef _CRTIMP
#  ifdef _NTSDK
    /* Definition compatible with NT SDK */
#   define _CRTIMP
#  else
    /* Current definition */
#   ifdef _DLL
#    define _CRTIMP __declspec(dllimport)
#   else
#    define _CRTIMP
#   endif
#  endif
#  define GLUT_DEFINED__CRTIMP
# endif

/* GLUT API entry point declarations for Win32. */
# ifdef GLUT_BUILDING_LIB
#  define GLUTAPI __declspec(dllexport)
# else
#  ifdef _DLL
#   define GLUTAPI __declspec(dllimport)
#  else
#   define GLUTAPI extern
#  endif
# endif

/* GLUT callback calling convention for Win32. */
# define GLUTCALLBACK __cdecl

#endif  /* _WIN32 */

#include <GL/gl.h>
#include <GL/glu.h>

#ifdef __cplusplus
extern "C" {
#endif

#if defined(_WIN32)
# ifndef GLUT_BUILDING_LIB
extern _CRTIMP void __cdecl exit(int);
# endif
#else
/* non-Win32 case. */
/* Define APIENTRY and CALLBACK to nothing if we aren't on Win32. */
# define APIENTRY
# define GLUT_APIENTRY_DEFINED
# define CALLBACK
/* Define GLUTAPI and GLUTCALLBACK as below if we aren't on Win32. */
# define GLUTAPI extern
# define GLUTCALLBACK
/* Prototype exit for the non-Win32 case (see above). */
extern void exit(int);
#endif

/**
 GLUT API revision history:
 
 GLUT_API_VERSION is updated to reflect incompatible GLUT
 API changes (interface changes, semantic changes, deletions,
 or additions).
 
 GLUT_API_VERSION=1  First public release of GLUT.  11/29/94

 GLUT_API_VERSION=2  Added support for OpenGL/GLX multisampling,
 extension.  Supports new input devices like tablet, dial and button
 box, and Spaceball.  Easy to query OpenGL extensions.

 GLUT_API_VERSION=3  glutMenuStatus added.

 GLUT_API_VERSION=4  glutInitDisplayString, glutWarpPointer,
 glutBitmapLength, glutStrokeLength, glutWindowStatusFunc, dynamic
 video resize subAPI, glutPostWindowRedisplay, glutKeyboardUpFunc,
 glutSpecialUpFunc, glutIgnoreKeyRepeat, glutSetKeyRepeat,
 glutJoystickFunc, glutForceJoystickFunc (NOT FINALIZED!).
**/
#ifndef GLUT_API_VERSION  /* allow this to be overriden */
#define GLUT_API_VERSION		3
#endif

/**
 GLUT implementation revision history:
 
 GLUT_XLIB_IMPLEMENTATION is updated to reflect both GLUT
 API revisions and implementation revisions (ie, bug fixes).

 GLUT_XLIB_IMPLEMENTATION=1  mjk's first public release of
 GLUT Xlib-based implementation.  11/29/94

 GLUT_XLIB_IMPLEMENTATION=2  mjk's second public release of
 GLUT Xlib-based implementation providing GLUT version 2 
 interfaces.

 GLUT_XLIB_IMPLEMENTATION=3  mjk's GLUT 2.2 images. 4/17/95

 GLUT_XLIB_IMPLEMENTATION=4  mjk's GLUT 2.3 images. 6/?/95

 GLUT_XLIB_IMPLEMENTATION=5  mjk's GLUT 3.0 images. 10/?/95

 GLUT_XLIB_IMPLEMENTATION=7  mjk's GLUT 3.1+ with glutWarpPoitner.  7/24/96

 GLUT_XLIB_IMPLEMENTATION=8  mjk's GLUT 3.1+ with glutWarpPoitner
 and video resize.  1/3/97

 GLUT_XLIB_IMPLEMENTATION=9 mjk's GLUT 3.4 release with early GLUT 4 routines.

 GLUT_XLIB_IMPLEMENTATION=11 Mesa 2.5's GLUT 3.6 release.

 GLUT_XLIB_IMPLEMENTATION=12 mjk's GLUT 3.6 release with early GLUT 4 routines + signal handling.

 GLUT_XLIB_IMPLEMENTATION=13 mjk's GLUT 3.7 beta with GameGLUT support.

 GLUT_XLIB_IMPLEMENTATION=14 mjk's GLUT 3.7 beta with f90gl friend interface.

 GLUT_XLIB_IMPLEMENTATION=15 mjk's GLUT 3.7 beta sync'ed with Mesa <GL/glut.h>
**/
#ifndef GLUT_XLIB_IMPLEMENTATION  /* Allow this to be overriden. */
#define GLUT_XLIB_IMPLEMENTATION	15
#endif

/* Display mode bit masks. */
#define GLUT_RGB			0
#define GLUT_RGBA			GLUT_RGB
#define GLUT_INDEX			1
#define GLUT_SINGLE			0
#define GLUT_DOUBLE			2
#define GLUT_ACCUM			4
#define GLUT_ALPHA			8
#define GLUT_DEPTH			16
#define GLUT_STENCIL			32
#if (GLUT_API_VERSION >= 2)
#define GLUT_MULTISAMPLE		128
#define GLUT_STEREO			256
#endif
#if (GLUT_API_VERSION >= 3)
#define GLUT_LUMINANCE			512
#endif

/* Mouse buttons. */
#define GLUT_LEFT_BUTTON		0
#define GLUT_MIDDLE_BUTTON		1
#define GLUT_RIGHT_BUTTON		2

/* Mouse button  state. */
#define GLUT_DOWN			0
#define GLUT_UP				1

#if (GLUT_API_VERSION >= 2)
/* function keys */
#define GLUT_KEY_F1			1
#define GLUT_KEY_F2			2
#define GLUT_KEY_F3			3
#define GLUT_KEY_F4			4
#define GLUT_KEY_F5			5
#define GLUT_KEY_F6			6
#define GLUT_KEY_F7			7
#define GLUT_KEY_F8			8
#define GLUT_KEY_F9			9
#define GLUT_KEY_F10			10
#define GLUT_KEY_F11			11
#define GLUT_KEY_F12			12
/* directional keys */
#define GLUT_KEY_LEFT			100
#define GLUT_KEY_UP			101
#define GLUT_KEY_RIGHT			102
#define GLUT_KEY_DOWN			103
#define GLUT_KEY_PAGE_UP		104
#define GLUT_KEY_PAGE_DOWN		105
#define GLUT_KEY_HOME			106
#define GLUT_KEY_END			107
#define GLUT_KEY_INSERT			108
#endif

/* Entry/exit  state. */
#define GLUT_LEFT			0
#define GLUT_ENTERED			1

/* Menu usage  state. */
#define GLUT_MENU_NOT_IN_USE		0
#define GLUT_MENU_IN_USE		1

/* Visibility  state. */
#define GLUT_NOT_VISIBLE		0
#define GLUT_VISIBLE			1

/* Window status  state. */
#define GLUT_HIDDEN			0
#define GLUT_FULLY_RETAINED		1
#define GLUT_PARTIALLY_RETAINED		2
#define GLUT_FULLY_COVERED		3

/* Color index component selection values. */
#define GLUT_RED			0
#define GLUT_GREEN			1
#define GLUT_BLUE			2

#if defined(_WIN32)
/* Stroke font constants (use these in GLUT program). */
#define GLUT_STROKE_ROMAN		((void*)0)
#define GLUT_STROKE_MONO_ROMAN		((void*)1)

/* Bitmap font constants (use these in GLUT program). */
#define GLUT_BITMAP_9_BY_15		((void*)2)
#define GLUT_BITMAP_8_BY_13		((void*)3)
#define GLUT_BITMAP_TIMES_ROMAN_10	((void*)4)
#define GLUT_BITMAP_TIMES_ROMAN_24	((void*)5)
#if (GLUT_API_VERSION >= 3)
#define GLUT_BITMAP_HELVETICA_10	((void*)6)
#define GLUT_BITMAP_HELVETICA_12	((void*)7)
#define GLUT_BITMAP_HELVETICA_18	((void*)8)
#endif
#else
/* Stroke font opaque addresses (use constants instead in source code). */
GLUTAPI void *glutStrokeRoman;
GLUTAPI void *glutStrokeMonoRoman;

/* Stroke font constants (use these in GLUT program). */
#define GLUT_STROKE_ROMAN		(&glutStrokeRoman)
#define GLUT_STROKE_MONO_ROMAN		(&glutStrokeMonoRoman)

/* Bitmap font opaque addresses (use constants instead in source code). */
GLUTAPI void *glutBitmap9By15;
GLUTAPI void *glutBitmap8By13;
GLUTAPI void *glutBitmapTimesRoman10;
GLUTAPI void *glutBitmapTimesRoman24;
GLUTAPI void *glutBitmapHelvetica10;
GLUTAPI void *glutBitmapHelvetica12;
GLUTAPI void *glutBitmapHelvetica18;

/* Bitmap font constants (use these in GLUT program). */
#define GLUT_BITMAP_9_BY_15		(&glutBitmap9By15)
#define GLUT_BITMAP_8_BY_13		(&glutBitmap8By13)
#define GLUT_BITMAP_TIMES_ROMAN_10	(&glutBitmapTimesRoman10)
#define GLUT_BITMAP_TIMES_ROMAN_24	(&glutBitmapTimesRoman24)
#if (GLUT_API_VERSION >= 3)
#define GLUT_BITMAP_HELVETICA_10	(&glutBitmapHelvetica10)
#define GLUT_BITMAP_HELVETICA_12	(&glutBitmapHelvetica12)
#define GLUT_BITMAP_HELVETICA_18	(&glutBitmapHelvetica18)
#endif
#endif

/* glutGet parameters. */
#define GLUT_WINDOW_X			((GLenum) 100)
#define GLUT_WINDOW_Y			((GLenum) 101)
#define GLUT_WINDOW_WIDTH		((GLenum) 102)
#define GLUT_WINDOW_HEIGHT		((GLenum) 103)
#define GLUT_WINDOW_BUFFER_SIZE		((GLenum) 104)
#define GLUT_WINDOW_STENCIL_SIZE	((GLenum) 105)
#define GLUT_WINDOW_DEPTH_SIZE		((GLenum) 106)
#define GLUT_WINDOW_RED_SIZE		((GLenum) 107)
#define GLUT_WINDOW_GREEN_SIZE		((GLenum) 108)
#define GLUT_WINDOW_BLUE_SIZE		((GLenum) 109)
#define GLUT_WINDOW_ALPHA_SIZE		((GLenum) 110)
#define GLUT_WINDOW_ACCUM_RED_SIZE	((GLenum) 111)
#define GLUT_WINDOW_ACCUM_GREEN_SIZE	((GLenum) 112)
#define GLUT_WINDOW_ACCUM_BLUE_SIZE	((GLenum) 113)
#define GLUT_WINDOW_ACCUM_ALPHA_SIZE	((GLenum) 114)