text: #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 availble 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__ */
  