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      1 #ifndef __GLX_glxint_h__
      2 #define __GLX_glxint_h__
      3 
      4 /*
      5  * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
      6  * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
      7  *
      8  * Permission is hereby granted, free of charge, to any person obtaining a
      9  * copy of this software and associated documentation files (the "Software"),
     10  * to deal in the Software without restriction, including without limitation
     11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     12  * and/or sell copies of the Software, and to permit persons to whom the
     13  * Software is furnished to do so, subject to the following conditions:
     14  *
     15  * The above copyright notice including the dates of first publication and
     16  * either this permission notice or a reference to
     17  * http://oss.sgi.com/projects/FreeB/
     18  * shall be included in all copies or substantial portions of the Software.
     19  *
     20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
     21  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
     23  * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
     24  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
     25  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     26  * SOFTWARE.
     27  *
     28  * Except as contained in this notice, the name of Silicon Graphics, Inc.
     29  * shall not be used in advertising or otherwise to promote the sale, use or
     30  * other dealings in this Software without prior written authorization from
     31  * Silicon Graphics, Inc.
     32  */
     33 
     34 #include <X11/X.h>
     35 #include <X11/Xdefs.h>
     36 #include "GL/gl.h"
     37 
     38 typedef struct __GLXvisualConfigRec __GLXvisualConfig;
     39 typedef struct __GLXFBConfigRec __GLXFBConfig;
     40 
     41 struct __GLXvisualConfigRec {
     42     VisualID vid;
     43     int class;
     44     Bool rgba;
     45     int redSize, greenSize, blueSize, alphaSize;
     46     unsigned long redMask, greenMask, blueMask, alphaMask;
     47     int accumRedSize, accumGreenSize, accumBlueSize, accumAlphaSize;
     48     Bool doubleBuffer;
     49     Bool stereo;
     50     int bufferSize;
     51     int depthSize;
     52     int stencilSize;
     53     int auxBuffers;
     54     int level;
     55     /* Start of Extended Visual Properties */
     56     int visualRating;		/* visual_rating extension */
     57     int transparentPixel;	/* visual_info extension */
     58 				/*    colors are floats scaled to ints */
     59     int transparentRed, transparentGreen, transparentBlue, transparentAlpha;
     60     int transparentIndex;
     61     int multiSampleSize;
     62     int nMultiSampleBuffers;
     63     int visualSelectGroup;
     64 };
     65 
     66 #define __GLX_MIN_CONFIG_PROPS	18
     67 #define __GLX_MAX_CONFIG_PROPS	500
     68 
     69 #define __GLX_EXT_CONFIG_PROPS 	10
     70 
     71 /*
     72 ** Since we send all non-core visual properties as token, value pairs,
     73 ** we require 2 words across the wire. In order to maintain backwards
     74 ** compatibility, we need to send the total number of words that the
     75 ** VisualConfigs are sent back in so old libraries can simply "ignore"
     76 ** the new properties.
     77 */
     78 #define __GLX_TOTAL_CONFIG       (__GLX_MIN_CONFIG_PROPS +      \
     79                                     2 * __GLX_EXT_CONFIG_PROPS)
     80 
     81 struct __GLXFBConfigRec {
     82     int visualType;
     83     int transparentType;
     84                                 /*    colors are floats scaled to ints */
     85     int transparentRed, transparentGreen, transparentBlue, transparentAlpha;
     86     int transparentIndex;
     87 
     88     int visualCaveat;
     89 
     90     int associatedVisualId;
     91     int screen;
     92 
     93     int drawableType;
     94     int renderType;
     95 
     96     int maxPbufferWidth, maxPbufferHeight, maxPbufferPixels;
     97     int optimalPbufferWidth, optimalPbufferHeight;  /* for SGIX_pbuffer */
     98 
     99     int visualSelectGroup;	/* visuals grouped by select priority */
    100 
    101     unsigned int id;
    102 
    103     GLboolean rgbMode;
    104     GLboolean colorIndexMode;
    105     GLboolean doubleBufferMode;
    106     GLboolean stereoMode;
    107     GLboolean haveAccumBuffer;
    108     GLboolean haveDepthBuffer;
    109     GLboolean haveStencilBuffer;
    110 
    111     /* The number of bits present in various buffers */
    112     GLint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits;
    113     GLint depthBits;
    114     GLint stencilBits;
    115     GLint indexBits;
    116     GLint redBits, greenBits, blueBits, alphaBits;
    117     GLuint redMask, greenMask, blueMask, alphaMask;
    118 
    119     GLuint multiSampleSize;     /* Number of samples per pixel (0 if no ms) */
    120 
    121     GLuint nMultiSampleBuffers; /* Number of available ms buffers */
    122     GLint maxAuxBuffers;
    123 
    124     /* frame buffer level */
    125     GLint level;
    126 
    127     /* color ranges (for SGI_color_range) */
    128     GLboolean extendedRange;
    129     GLdouble minRed, maxRed;
    130     GLdouble minGreen, maxGreen;
    131     GLdouble minBlue, maxBlue;
    132     GLdouble minAlpha, maxAlpha;
    133 };
    134 
    135 #define __GLX_TOTAL_FBCONFIG_PROPS	 35
    136 
    137 #endif /* !__GLX_glxint_h__ */
    138