glfeatures.h

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/***************************************************************************
 
    file                 : glfeatures.h
    created              : Wed Jun 1 14:56:31 CET 2005
    copyright            : (C) 2005-2026 by Bernhard Wymann
 
***************************************************************************/
 
/***************************************************************************
 *                                                                         *
 *   This program 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.                                   *
 *                                                                         *
 ***************************************************************************/
 
/*
    Functions to check if features seems to be available and requested by the
    user. The isAvailable functions should return if a feature is working on
    the system, the isEnabled feature should check if the user wants to enable
    it as well.
    It should NOT check if the features are really working, that is subject
    to another part eventually.
*/
 
#ifndef _GRFEATURES_H_
#define _GRFEATURES_H_
 
#ifdef WIN32
#include <windows.h>
#include <GL/gl.h>
#include <GL/glext.h>
#else
#include <GL/gl.h>
#endif // WIN32
 
#include <tgfclient.h>
#include <graphic.h>
 
// Initialize
extern void checkGLFeatures(void);
 
// GL_ARB_texture_compression
extern bool isCompressARBAvailable(void);
extern bool isCompressARBEnabled(void);
extern void updateCompressARBEnabled(void);
 
extern int getUserTextureMaxSize(void);
extern int getGLTextureMaxSize(void);
extern void updateUserTextureMaxSize(void);
 
extern bool isTextureAnisotropyAvailable(void);
extern int getGLTextureMaxAnisotropy(void);
extern int getUserTextureAnisotropy(void);
extern void updateUserTextureAnisotropy(void);
extern void applyUserTextureAnisotropy(void);
 
#endif // _GRFEATURES_H_