qgl.h

quakeIII源码这个不用我多说吧

/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.

This file is part of Quake III Arena source code.

Quake III Arena source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.

Quake III Arena source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/
/*
** QGL.H
*/

#ifndef __QGL_H__
#define __QGL_H__

#if defined( __LINT__ )

#include <GL/gl.h>

#elif defined( _WIN32 )

#pragma warning (disable: 4201)
#pragma warning (disable: 4214)
#pragma warning (disable: 4514)
#pragma warning (disable: 4032)
#pragma warning (disable: 4201)
#pragma warning (disable: 4214)
#include <windows.h>
#include <gl/gl.h>

#elif defined(MACOS_X)

#include "macosx_glimp.h"

#elif defined( __linux__ )

#include <GL/gl.h>
#include <GL/glx.h>
// bk001129 - from cvs1.17 (mkv)
#if defined(__FX__)
#include <GL/fxmesa.h>
#endif

#elif defined( __FreeBSD__ ) // rb010123

#include <GL/gl.h>
#include <GL/glx.h>
#if defined(__FX__)
#include <GL/fxmesa.h>
#endif

#else

#include <gl.h>

#endif

#ifndef APIENTRY
#define APIENTRY
#endif
#ifndef WINAPI
#define WINAPI
#endif


//===========================================================================

/*
** multitexture extension definitions
*/
#define GL_ACTIVE_TEXTURE_ARB               0x84E0
#define GL_CLIENT_ACTIVE_TEXTURE_ARB        0x84E1
#define GL_MAX_ACTIVE_TEXTURES_ARB          0x84E2

#define GL_TEXTURE0_ARB                     0x84C0
#define GL_TEXTURE1_ARB                     0x84C1
#define GL_TEXTURE2_ARB                     0x84C2
#define GL_TEXTURE3_ARB                     0x84C3

// NOTE: some Linux platforms would need those prototypes
#if defined(MACOS_X)
typedef void (APIENTRY * PFNGLMULTITEXCOORD1DARBPROC) (GLenum target, GLdouble s);
typedef void (APIENTRY * PFNGLMULTITEXCOORD1DVARBPROC) (GLenum target, const GLdouble *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD1FARBPROC) (GLenum target, GLfloat s);
typedef void (APIENTRY * PFNGLMULTITEXCOORD1FVARBPROC) (GLenum target, const GLfloat *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD1IARBPROC) (GLenum target, GLint s);
typedef void (APIENTRY * PFNGLMULTITEXCOORD1IVARBPROC) (GLenum target, const GLint *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD1SARBPROC) (GLenum target, GLshort s);
typedef void (APIENTRY * PFNGLMULTITEXCOORD1SVARBPROC) (GLenum target, const GLshort *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD2DARBPROC) (GLenum target, GLdouble s, GLdouble t);
typedef void (APIENTRY * PFNGLMULTITEXCOORD2DVARBPROC) (GLenum target, const GLdouble *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD2FARBPROC) (GLenum target, GLfloat s, GLfloat t);
typedef void (APIENTRY * PFNGLMULTITEXCOORD2FVARBPROC) (GLenum target, const GLfloat *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD2IARBPROC) (GLenum target, GLint s, GLint t);
typedef void (APIENTRY * PFNGLMULTITEXCOORD2IVARBPROC) (GLenum target, const GLint *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD2SARBPROC) (GLenum target, GLshort s, GLshort t);
typedef void (APIENTRY * PFNGLMULTITEXCOORD2SVARBPROC) (GLenum target, const GLshort *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD3DARBPROC) (GLenum target, GLdouble s, GLdouble t, GLdouble r);
typedef void (APIENTRY * PFNGLMULTITEXCOORD3DVARBPROC) (GLenum target, const GLdouble *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD3FARBPROC) (GLenum target, GLfloat s, GLfloat t, GLfloat r);
typedef void (APIENTRY * PFNGLMULTITEXCOORD3FVARBPROC) (GLenum target, const GLfloat *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD3IARBPROC) (GLenum target, GLint s, GLint t, GLint r);
typedef void (APIENTRY * PFNGLMULTITEXCOORD3IVARBPROC) (GLenum target, const GLint *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD3SARBPROC) (GLenum target, GLshort s, GLshort t, GLshort r);
typedef void (APIENTRY * PFNGLMULTITEXCOORD3SVARBPROC) (GLenum target, const GLshort *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD4DARBPROC) (GLenum target, GLdouble s, GLdouble t, GLdouble r, GLdouble q);
typedef void (APIENTRY * PFNGLMULTITEXCOORD4DVARBPROC) (GLenum target, const GLdouble *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD4FARBPROC) (GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q);
typedef void (APIENTRY * PFNGLMULTITEXCOORD4FVARBPROC) (GLenum target, const GLfloat *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD4IARBPROC) (GLenum target, GLint s, GLint t, GLint r, GLint q);
typedef void (APIENTRY * PFNGLMULTITEXCOORD4IVARBPROC) (GLenum target, const GLint *v);
typedef void (APIENTRY * PFNGLMULTITEXCOORD4SARBPROC) (GLenum target, GLshort s, GLshort t, GLshort r, GLshort q);
typedef void (APIENTRY * PFNGLMULTITEXCOORD4SVARBPROC) (GLenum target, const GLshort *v);
typedef void (APIENTRY * PFNGLACTIVETEXTUREARBPROC) (GLenum target);
typedef void (APIENTRY * PFNGLCLIENTACTIVETEXTUREARBPROC) (GLenum target);
#endif

// TTimo - VC7 / XP ?
#ifdef WIN32
typedef void (APIENTRY * PFNGLMULTITEXCOORD2FARBPROC) (GLenum target, GLfloat s, GLfloat t);
typedef void (APIENTRY * PFNGLACTIVETEXTUREARBPROC) (GLenum target);
typedef void (APIENTRY * PFNGLCLIENTACTIVETEXTUREARBPROC) (GLenum target);
#endif

/*
** extension constants
*/


// S3TC compression constants
#define GL_RGB_S3TC							0x83A0
#define GL_RGB4_S3TC						0x83A1


// extensions will be function pointers on all platforms

extern	void ( APIENTRY * qglMultiTexCoord2fARB )( GLenum texture, GLfloat s, GLfloat t );
extern	void ( APIENTRY * qglActiveTextureARB )( GLenum texture );
extern	void ( APIENTRY * qglClientActiveTextureARB )( GLenum texture );

extern	void ( APIENTRY * qglLockArraysEXT) (GLint, GLint);
extern	void ( APIENTRY * qglUnlockArraysEXT) (void);

//===========================================================================

// non-windows systems will just redefine qgl* to gl*
#if !defined( _WIN32 ) && !defined(MACOS_X) && !defined( __linux__ ) && !defined( __FreeBSD__ ) // rb010123

#include "qgl_linked.h"

#elif defined(MACOS_X)
// This includes #ifdefs for optional logging and GL error checking after every GL call as well as #defines to prevent incorrect usage of the non-'qgl' versions of the GL API.
#include "macosx_qgl.h"

#else

// windows systems use a function pointer for each call so we can load minidrivers

extern  void ( APIENTRY * qglAccum )(GLenum op, GLfloat value);
extern  void ( APIENTRY * qglAlphaFunc )(GLenum func, GLclampf ref);
extern  GLboolean ( APIENTRY * qglAreTexturesResident )(GLsizei n, const GLuint *textures, GLboolean *residences);
extern  void ( APIENTRY * qglArrayElement )(GLint i);
extern  void ( APIENTRY * qglBegin )(GLenum mode);
extern  void ( APIENTRY * qglBindTexture )(GLenum target, GLuint texture);
extern  void ( APIENTRY * qglBitmap )(GLsizei width, GLsizei height, GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove, const GLubyte *bitmap);
extern  void ( APIENTRY * qglBlendFunc )(GLenum sfactor, GLenum dfactor);
extern  void ( APIENTRY * qglCallList )(GLuint list);
extern  void ( APIENTRY * qglCallLists )(GLsizei n, GLenum type, const GLvoid *lists);
extern  void ( APIENTRY * qglClear )(GLbitfield mask);
extern  void ( APIENTRY * qglClearAccum )(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
extern  void ( APIENTRY * qglClearColor )(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
extern  void ( APIENTRY * qglClearDepth )(GLclampd depth);
extern  void ( APIENTRY * qglClearIndex )(GLfloat c);
extern  void ( APIENTRY * qglClearStencil )(GLint s);
extern  void ( APIENTRY * qglClipPlane )(GLenum plane, const GLdouble *equation);
extern  void ( APIENTRY * qglColor3b )(GLbyte red, GLbyte green, GLbyte blue);
extern  void ( APIENTRY * qglColor3bv )(const GLbyte *v);
extern  void ( APIENTRY * qglColor3d )(GLdouble red, GLdouble green, GLdouble blue);