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/* $Id: glheader.h,v 1.21 2001/06/15 15:22:07 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.5
*
* Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef GLHEADER_H
#define GLHEADER_H
/*
* This is the top-most include file of the Mesa sources.
* It includes gl.h and all system headers which are needed.
* Other Mesa source files should _not_ directly include any system
* headers. This allows Mesa to be integrated into XFree86 and
* allows system-dependent hacks/work-arounds to be collected in one place.
*
* If you touch this file, everything gets recompiled!
*
* This file should be included before any other header in the .c files.
*
* Put compiler/OS/assembly pragmas and macros here to avoid
* cluttering other source files.
*/
#ifdef XFree86LOADER
#include "xf86_ansic.h"
#else
#include <assert.h>
#include <ctype.h>
/* If we can use Compaq's Fast Math Library on Alpha */
#if defined(__alpha__) && defined(CCPML)
#include <cpml.h>
#else
#include <math.h>
#endif
#include <limits.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#if defined(__linux__) && defined(__i386__)
#include <fpu_control.h>
#endif
#endif
#include <float.h>
#ifdef HAVE_CONFIG_H
#include "conf.h"
#endif
#if defined(_WIN32) && !defined(__WIN32__) && !defined(__CYGWIN__)
# define __WIN32__
#endif
#if !defined(OPENSTEP) && (defined(__WIN32__) && !defined(__CYGWIN__))
# pragma warning( disable : 4068 ) /* unknown pragma */
# pragma warning( disable : 4710 ) /* function 'foo' not inlined */
# pragma warning( disable : 4711 ) /* function 'foo' selected for automatic inline expansion */
# pragma warning( disable : 4127 ) /* conditional expression is constant */
# if defined(MESA_MINWARN)
# pragma warning( disable : 4244 ) /* '=' : conversion from 'const double ' to 'float ', possible loss of data */
# pragma warning( disable : 4018 ) /* '<' : signed/unsigned mismatch */
# pragma warning( disable : 4305 ) /* '=' : truncation from 'const double ' to 'float ' */
# pragma warning( disable : 4550 ) /* 'function' undefined; assuming extern returning int */
# pragma warning( disable : 4761 ) /* integral size mismatch in argument; conversion supplied */
# endif
# if defined(_MSC_VER) && defined(BUILD_GL32) /* tag specify we're building mesa as a DLL */
# define GLAPI __declspec(dllexport)
# define WGLAPI __declspec(dllexport)
# elif defined(_MSC_VER) && defined(_DLL) /* tag specifying we're building for DLL runtime support */
# define GLAPI __declspec(dllimport)
# define WGLAPI __declspec(dllimport)
# else /* for use with static link lib build of Win32 edition only */
# define GLAPI extern
# define WGLAPI __declspec(dllimport)
# endif /* _STATIC_MESA support */
# define GLAPIENTRY __stdcall
# define GLAPIENTRYP __stdcall *
# define GLCALLBACK __stdcall
# define GLCALLBACKP __stdcall *
# if defined(__CYGWIN__)
# define GLCALLBACKPCAST *
# else
# define GLCALLBACKPCAST __stdcall *
# endif
# define GLWINAPI __stdcall
# define GLWINAPIV __cdecl
#else
/* non-Windows compilation */
# define GLAPI extern
# define GLAPIENTRY
# define GLAPIENTRYP *
# define GLCALLBACK
# define GLCALLBACKP *
# define GLCALLBACKPCAST *
# define GLWINAPI
# define GLWINAPIV
#endif /* WIN32 / CYGWIN bracket */
/* compatability guard so we don't need to change client code */
#if defined(_WIN32) && !defined(_WINDEF_) && !defined(_GNU_H_WINDOWS32_BASE) && !defined(OPENSTEP) && !defined(__CYGWIN__)
#if 0
# define CALLBACK GLCALLBACK
typedef void *HGLRC;
typedef void *HDC;
#endif
typedef int (GLAPIENTRY *PROC)();
typedef unsigned long COLORREF;
#endif
/* Make sure we include glext.h from gl.h */
#define GL_GLEXT_PROTOTYPES
#if defined(_WIN32) && !defined(_WINGDI_) && !defined(_GNU_H_WINDOWS32_DEFINES) && !defined(OPENSTEP)
# define WGL_FONT_LINES 0
# define WGL_FONT_POLYGONS 1
#ifndef _GNU_H_WINDOWS32_FUNCTIONS
# ifdef UNICODE
# define wglUseFontBitmaps wglUseFontBitmapsW
# define wglUseFontOutlines wglUseFontOutlinesW
# else
# define wglUseFontBitmaps wglUseFontBitmapsA
# define wglUseFontOutlines wglUseFontOutlinesA
# endif /* !UNICODE */
#endif /* _GNU_H_WINDOWS32_FUNCTIONS */
typedef struct tagLAYERPLANEDESCRIPTOR LAYERPLANEDESCRIPTOR, *PLAYERPLANEDESCRIPTOR, *LPLAYERPLANEDESCRIPTOR;
typedef struct _GLYPHMETRICSFLOAT GLYPHMETRICSFLOAT, *PGLYPHMETRICSFLOAT, *LPGLYPHMETRICSFLOAT;
typedef struct tagPIXELFORMATDESCRIPTOR PIXELFORMATDESCRIPTOR, *PPIXELFORMATDESCRIPTOR, *LPPIXELFORMATDESCRIPTOR;
#if !defined(GLX_USE_MESA)
#include <gl/mesa_wgl.h>
#endif
#endif
/* This is a macro on IRIX */
#ifdef _P
#undef _P
#endif
#include "GL/gl.h"
#include "GL/glext.h"
#ifndef CAPI
#define CAPI
#endif
#include <GL/internal/glcore.h>
/* Disable unreachable code warnings for Watcom C++ */
#ifdef __WATCOMC__
#pragma disable_message(201)
#endif
/* Turn off macro checking systems used by other libraries */
#ifdef CHECK
#undef CHECK
#endif
/* Create a macro so that asm functions can be linked into compilers other
* than GNU C
*/
#ifndef _ASMAPI
#if !defined( __GNUC__ ) && !defined( VMS )
#define _ASMAPI __cdecl
#else
#define _ASMAPI
#endif
#ifdef PTR_DECL_IN_FRONT
#define _ASMAPIP * _ASMAPI
#else
#define _ASMAPIP _ASMAPI *
#endif
#endif
#ifdef USE_X86_ASM
#define _NORMAPI _ASMAPI
#define _NORMAPIP _ASMAPIP
#else
#define _NORMAPI
#define _NORMAPIP *
#endif
/* Function inlining */
#if defined(__GNUC__)
# define INLINE __inline__
#elif defined(__MSC__)
# define INLINE __inline
#else
# define INLINE
#endif
/* Some compilers don't like some of Mesa's const usage */
#ifdef NO_CONST
# define CONST
#else
# define CONST const
#endif
#ifdef DEBUG
# define ASSERT(X) assert(X)
#else
# define ASSERT(X)
#endif
/*
* Sometimes we treat GLfloats as GLints. On x86 systems, moving a float
* as a int (thereby using integer registers instead of fp registers) is
* a performance win. Typically, this can be done with ordinary casts.
* But with gcc's -fstrict-aliasing flag (which defaults to on in gcc 3.0)
* these casts generate warnings.
* The following union typedef is used to solve that.
*/
typedef union { GLfloat f; GLint i; } fi_type;
#endif /* GLHEADER_H */
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