Hallo, dies ist ein Test.

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#ifndef __GLX_glxint_h__
#define __GLX_glxint_h__

/*
 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
 * Copyright (C) 1991-2000 Silicon Graphics, Inc. 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 including the dates of first publication and
 * either this permission notice or a reference to
 * http://oss.sgi.com/projects/FreeB/
 * 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
 * SILICON GRAPHICS, INC. 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.
 *
 * Except as contained in this notice, the name of Silicon Graphics, Inc.
 * shall not be used in advertising or otherwise to promote the sale, use or
 * other dealings in this Software without prior written authorization from
 * Silicon Graphics, Inc.
 */

#include <X11/X.h>
#include <X11/Xdefs.h>
#include "GL/gl.h"

typedef struct __GLXvisualConfigRec __GLXvisualConfig;
typedef struct __GLXFBConfigRec __GLXFBConfig;

struct __GLXvisualConfigRec {
    VisualID vid;
    int class;
    Bool rgba;
    int redSize, greenSize, blueSize, alphaSize;
    unsigned long redMask, greenMask, blueMask, alphaMask;
    int accumRedSize, accumGreenSize, accumBlueSize, accumAlphaSize;
    Bool doubleBuffer;
    Bool stereo;
    int bufferSize;
    int depthSize;
    int stencilSize;
    int auxBuffers;
    int level;
    /* Start of Extended Visual Properties */
    int visualRating;		/* visual_rating extension */
    int transparentPixel;	/* visual_info extension */
				/*    colors are floats scaled to ints */
    int transparentRed, transparentGreen, transparentBlue, transparentAlpha;
    int transparentIndex;
    int multiSampleSize;
    int nMultiSampleBuffers;
    int visualSelectGroup;
};

#define __GLX_MIN_CONFIG_PROPS	18
#define __GLX_MAX_CONFIG_PROPS	500

#define __GLX_EXT_CONFIG_PROPS 	10

/*
** Since we send all non-core visual properties as token, value pairs,
** we require 2 words across the wire. In order to maintain backwards
** compatibility, we need to send the total number of words that the
** VisualConfigs are sent back in so old libraries can simply "ignore"
** the new properties.
*/
#define __GLX_TOTAL_CONFIG       (__GLX_MIN_CONFIG_PROPS +      \
                                    2 * __GLX_EXT_CONFIG_PROPS)

struct __GLXFBConfigRec {
    int visualType;
    int transparentType;
                                /*    colors are floats scaled to ints */
    int transparentRed, transparentGreen, transparentBlue, transparentAlpha;
    int transparentIndex;

int visualCaveat;

int associatedVisualId;
    int screen;

int drawableType;
    int renderType;

int maxPbufferWidth, maxPbufferHeight, maxPbufferPixels;
    int optimalPbufferWidth, optimalPbufferHeight;  /* for SGIX_pbuffer */

int visualSelectGroup;	/* visuals grouped by select priority */

unsigned int id;

GLboolean rgbMode;
    GLboolean colorIndexMode;
    GLboolean doubleBufferMode;
    GLboolean stereoMode;
    GLboolean haveAccumBuffer;
    GLboolean haveDepthBuffer;
    GLboolean haveStencilBuffer;

/* The number of bits present in various buffers */
    GLint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits;
    GLint depthBits;
    GLint stencilBits;
    GLint indexBits;
    GLint redBits, greenBits, blueBits, alphaBits;
    GLuint redMask, greenMask, blueMask, alphaMask;

GLuint multiSampleSize;     /* Number of samples per pixel (0 if no ms) */

GLuint nMultiSampleBuffers; /* Number of available ms buffers */
    GLint maxAuxBuffers;

/* frame buffer level */
    GLint level;

/* color ranges (for SGI_color_range) */
    GLboolean extendedRange;
    GLdouble minRed, maxRed;
    GLdouble minGreen, maxGreen;
    GLdouble minBlue, maxBlue;
    GLdouble minAlpha, maxAlpha;
};

#define __GLX_TOTAL_FBCONFIG_PROPS	 35

#endif /* !__GLX_glxint_h__ */