| 1 | /*
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| 2 | * Mesa 3-D graphics library
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| 3 | * Version: 6.1
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| 4 | *
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| 5 | * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
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| 6 | *
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| 7 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 8 | * copy of this software and associated documentation files (the "Software"),
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| 9 | * to deal in the Software without restriction, including without limitation
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| 10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| 11 | * and/or sell copies of the Software, and to permit persons to whom the
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| 12 | * Software is furnished to do so, subject to the following conditions:
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| 13 | *
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| 14 | * The above copyright notice and this permission notice shall be included
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| 15 | * in all copies or substantial portions of the Software.
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| 16 | *
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| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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| 18 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 20 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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| 21 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| 22 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 23 | */
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| 24 |
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| 25 |
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| 26 | /**
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| 27 | * \file miniglx.h
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| 28 | * \brief Mini GLX interface functions.
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| 29 | * \author Brian Paul
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| 30 | *
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| 31 | * See comments miniglx.c for more information.
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| 32 | */
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| 33 |
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| 34 | #ifndef MINIGLX_H
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| 35 | #define MINIGLX_H
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| 36 |
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| 37 | #include <GL/gl.h>
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| 38 | #include <stdlib.h>
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| 39 |
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| 40 |
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| 41 | #ifdef __cplusplus
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| 42 | extern "C" {
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| 43 | #endif
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| 44 |
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| 45 |
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| 46 | /**
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| 47 | * \name Replacement Xlib/GLX types
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| 48 | */
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| 49 | /*@{*/
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| 50 | /**
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| 51 | * \brief Boolean type.
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| 52 | *
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| 53 | * It can have the values #True or #False.
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| 54 | */
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| 55 | #ifndef MINIGLX_NO_XTYPES
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| 56 | typedef int Bool;
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| 57 | #endif
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| 58 | typedef int MINI_Bool;
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| 59 |
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| 60 | /**
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| 61 | * \brief Color map.
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| 62 | *
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| 63 | * Alias for private ::MiniGLXColormapRec structure.
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| 64 | */
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| 65 | typedef struct MiniGLXColormapRec *MINI_Colormap;
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| 66 | #ifndef MINIGLX_NO_XTYPES
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| 67 | typedef struct MiniGLXColormapRec *Colormap;
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| 68 | #endif
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| 69 |
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| 70 | /**
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| 71 | * \brief Window attributes.
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| 72 | */
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| 73 | typedef struct MiniGLXSetWindowAttributesRec {
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| 74 | int background_pixel; /**< \brief background pixel */
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| 75 | int border_pixel; /**< \brief border pixel value */
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| 76 | MINI_Colormap colormap; /**< \brief color map to be associated with window */
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| 77 | int event_mask; /**< \brief set of events that should be saved */
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| 78 | } XSetWindowAttributes;
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| 79 |
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| 80 | /**
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| 81 | * \brief Visual.
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| 82 | *
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| 83 | * Alias for the private ::MiniGLXVisualRec structure.
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| 84 | *
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| 85 | * \sa \ref datatypes.
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| 86 | */
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| 87 | typedef struct MiniGLXVisualRec Visual;
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| 88 |
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| 89 | /**
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| 90 | * \brief Visual information.
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| 91 | *
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| 92 | * \sa \ref datatypes.
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| 93 | */
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| 94 | #ifndef MINIGLX_NO_XTYPES
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| 95 | typedef unsigned long VisualID;
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| 96 | #endif
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| 97 | typedef unsigned long MINI_VisualID;
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| 98 | typedef struct MiniGLXXVisualInfoRec {
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| 99 | Visual *visual; /**< \brief pointer to the GLX Visual */
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| 100 | MINI_VisualID visualid; /**< \brief visual ID */
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| 101 | int screen; /**< \brief screen number */
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| 102 | int depth; /**< \brief bit depth */
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| 103 | #if defined(__cplusplus) || defined(c_plusplus)
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| 104 | int c_class; /**< \brief class */
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| 105 | #else
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| 106 | int class; /**< \brief class */
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| 107 | #endif
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| 108 | int bits_per_rgb; /**< \brief total bits per pixel */
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| 109 | } XVisualInfo;
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| 110 |
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| 111 | /**
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| 112 | * \brief GLX Frame Buffer Configuration (for pbuffers)
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| 113 | * \sa \ref datatypes.
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| 114 | */
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| 115 | typedef struct MiniGLXFBConfigRec {
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| 116 | XVisualInfo *visInfo;
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| 117 | } GLXFBConfig;
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| 118 |
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| 119 |
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| 120 | /**
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| 121 | * \brief Display handle.
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| 122 | *
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| 123 | * Alias for the private ::MiniGLXDisplayRec structure.
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| 124 | *
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| 125 | * \sa \ref datatypes.
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| 126 | */
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| 127 | #ifndef MINIGLX_NO_XTYPES
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| 128 | typedef struct MiniGLXDisplayRec Display;
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| 129 | #endif
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| 130 | typedef struct MiniGLXDisplayRec MINI_Display;
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| 131 |
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| 132 | /**
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| 133 | * \brief Window handle.
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| 134 | *
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| 135 | * Alias for the private ::MiniGLXWindowRec structure.
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| 136 | *
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| 137 | * \sa \ref datatypes.
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| 138 | */
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| 139 | #ifndef MINIGLX_NO_XTYPES
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| 140 | typedef struct MiniGLXWindowRec *Window;
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| 141 | #endif
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| 142 | typedef struct MiniGLXWindowRec *MINI_Window;
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| 143 |
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| 144 | /**
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| 145 | * \brief Drawable.
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| 146 | *
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| 147 | * Alias for the private ::MiniGLXWindowRec structure.
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| 148 | *
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| 149 | * For Mini GLX only the full-screen window can be used as source and
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| 150 | * destination in graphics operations.
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| 151 | *
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| 152 | * \sa \ref datatypes.
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| 153 | */
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| 154 | #ifndef MINIGLX_NO_XTYPES
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| 155 | typedef struct MiniGLXWindowRec *Drawable;
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| 156 | #endif
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| 157 | typedef struct MiniGLXWindowRec *MINI_Drawable;
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| 158 |
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| 159 | /**
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| 160 | * \brief GLX drawable.
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| 161 | *
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| 162 | * Alias for the private ::MiniGLXWindowRec structure.
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| 163 | *
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| 164 | * Same as #Drawable.
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| 165 | *
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| 166 | * \sa \ref datatypes.
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| 167 | */
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| 168 | typedef struct MiniGLXWindowRec *GLXDrawable;
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| 169 |
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| 170 | /**
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| 171 | * \brief GLX pbuffer.
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| 172 | *
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| 173 | * Alias for the private ::MiniGLXWindowRec structure.
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| 174 | *
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| 175 | * Same as #Drawable.
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| 176 | *
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| 177 | * \sa \ref datatypes.
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| 178 | */
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| 179 | typedef struct MiniGLXWindowRec *GLXPbuffer;
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| 180 |
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| 181 | /**
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| 182 | * \brief GLX context.
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| 183 | *
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| 184 | * Alias for the private ::MiniGLXContext structure.
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| 185 | *
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| 186 | * \sa \ref datatypes.
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| 187 | */
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| 188 | typedef struct MiniGLXContextRec *GLXContext;
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| 189 | /*@}*/
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| 190 |
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| 191 |
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| 192 | typedef struct {
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| 193 | int type;
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| 194 | unsigned long serial; /* # of last request processed by server */
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| 195 | MINI_Bool send_event; /* true if this came from a SendEvent request */
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| 196 | MINI_Display *display; /* Display the event was read from */
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| 197 | MINI_Window window;
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| 198 | int x, y;
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| 199 | int width, height;
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| 200 | int count; /* if non-zero, at least this many more */
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| 201 | } XExposeEvent;
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| 202 |
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| 203 | typedef struct {
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| 204 | int type;
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| 205 | unsigned long serial; /* # of last request processed by server */
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| 206 | MINI_Bool send_event; /* true if this came from a SendEvent request */
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| 207 | MINI_Display *display; /* Display the event was read from */
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| 208 | MINI_Window parent; /* parent of the window */
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| 209 | MINI_Window window; /* window id of window created */
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| 210 | int x, y; /* window location */
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| 211 | int width, height; /* size of window */
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| 212 | int border_width; /* border width */
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| 213 | MINI_Bool override_redirect; /* creation should be overridden */
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| 214 | } XCreateWindowEvent;
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| 215 |
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| 216 | typedef struct {
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| 217 | int type;
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| 218 | unsigned long serial; /* # of last request processed by server */
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| 219 | MINI_Bool send_event; /* true if this came from a SendEvent request */
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| 220 | MINI_Display *display; /* Display the event was read from */
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| 221 | MINI_Window event;
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| 222 | MINI_Window window;
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| 223 | } XDestroyWindowEvent;
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| 224 |
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| 225 | typedef struct {
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| 226 | int type;
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| 227 | unsigned long serial; /* # of last request processed by server */
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| 228 | MINI_Bool send_event; /* true if this came from a SendEvent request */
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| 229 | MINI_Display *display; /* Display the event was read from */
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| 230 | MINI_Window event;
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| 231 | MINI_Window window;
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| 232 | MINI_Bool from_configure;
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| 233 | } XUnmapEvent;
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| 234 |
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| 235 | typedef struct {
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| 236 | int type;
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| 237 | unsigned long serial; /* # of last request processed by server */
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| 238 | MINI_Bool send_event; /* true if this came from a SendEvent request */
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| 239 | MINI_Display *display; /* Display the event was read from */
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| 240 | MINI_Window event;
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| 241 | MINI_Window window;
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| 242 | MINI_Bool override_redirect; /* boolean, is override set... */
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| 243 | } XMapEvent;
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| 244 |
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| 245 |
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| 246 | typedef struct {
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| 247 | int type;
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| 248 | unsigned long serial; /* # of last request processed by server */
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| 249 | MINI_Bool send_event; /* true if this came from a SendEvent request */
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| 250 | MINI_Display *display; /* Display the event was read from */
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| 251 | MINI_Window parent;
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| 252 | MINI_Window window;
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| 253 | } XMapRequestEvent;
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| 254 |
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| 255 | typedef union _XEvent {
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| 256 | int type; /* must not be changed; first element */
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| 257 | XExposeEvent xexpose;
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| 258 | XCreateWindowEvent xcreatewindow;
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| 259 | XDestroyWindowEvent xdestroywindow;
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| 260 | XUnmapEvent xunmap;
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| 261 | XMapEvent xmap;
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| 262 | XMapRequestEvent xmaprequest;
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| 263 | long pad[24];
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| 264 | } XEvent;
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| 265 |
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| 266 |
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| 267 | /**
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| 268 | * \name Xlib constants
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| 269 | */
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| 270 | /*@{*/
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| 271 | #define False 0
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| 272 | #define True 1
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| 273 | #define None 0
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| 274 | #define AllocNone 0
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| 275 | #define InputOutput 1
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| 276 | #define ExposureMask (1L<<15)
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| 277 | #define StructureNotifyMask (1L<<17)
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| 278 | #define CWBackPixel (1L<<1)
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| 279 | #define CWBorderPixel (1L<<3)
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| 280 | #define CWEventMask (1L<<11)
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| 281 | #define CWColormap (1L<<13)
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| 282 | #define PseudoColor 3
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| 283 | #define TrueColor 4
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| 284 | #define VisualIDMask 0x1
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| 285 | #define VisualScreenMask 0x2
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| 286 | #define Expose 12
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| 287 | #define CreateNotify 16
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| 288 | #define DestroyNotify 17
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| 289 | #define UnmapNotify 18
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| 290 | #define MapNotify 19
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| 291 | #define MapRequest 20
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| 292 |
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| 293 | /*@}*/
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| 294 |
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| 295 | /**
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| 296 | * \name Standard GLX tokens
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| 297 | */
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| 298 | /*@{*/
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| 299 | #define GLX_USE_GL 1
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| 300 | #define GLX_BUFFER_SIZE 2
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| 301 | #define GLX_LEVEL 3
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| 302 | #define GLX_RGBA 4
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| 303 | #define GLX_DOUBLEBUFFER 5
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| 304 | #define GLX_STEREO 6
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| 305 | #define GLX_AUX_BUFFERS 7
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| 306 | #define GLX_RED_SIZE 8
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| 307 | #define GLX_GREEN_SIZE 9
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| 308 | #define GLX_BLUE_SIZE 10
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| 309 | #define GLX_ALPHA_SIZE 11
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| 310 | #define GLX_DEPTH_SIZE 12
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| 311 | #define GLX_STENCIL_SIZE 13
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| 312 | #define GLX_ACCUM_RED_SIZE 14
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| 313 | #define GLX_ACCUM_GREEN_SIZE 15
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| 314 | #define GLX_ACCUM_BLUE_SIZE 16
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| 315 | #define GLX_ACCUM_ALPHA_SIZE 17
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| 316 | #define GLX_BAD_ATTRIBUTE 1
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| 317 | #define GLX_BAD_VISUAL 4
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| 318 | /*@}*/
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| 319 |
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| 320 |
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| 321 | /**
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| 322 | * \name Unique to Mini GLX
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| 323 | *
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| 324 | * At compile time, the Mini GLX interface version can be tested with the
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| 325 | * MINI_GLX_VERSION_1_x preprocessor tokens.
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| 326 | *
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| 327 | * \sa glXQueryVersion()
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| 328 | */
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| 329 | /*@{*/
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| 330 | /** \brief Defined if version 1.0 of Mini GLX is supported. */
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| 331 | #define MINI_GLX_VERSION_1_0 1
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| 332 | /** \brief Defined if version 1.1 of Mini GLX is supported. */
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| 333 | #define MINI_GLX_VERSION_1_1 1
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| 334 | /*@}*/
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| 335 |
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| 336 |
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| 337 | /**
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| 338 | * \name Server-specific functions
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| 339 | */
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| 340 | extern MINI_Display *
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| 341 | __miniglx_StartServer( const char *display_name );
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| 342 |
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| 343 | extern int
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| 344 | __miniglx_Select( MINI_Display *dpy, int maxfd,
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| 345 | fd_set *rfds, fd_set *wfds, fd_set *xfds,
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| 346 | struct timeval *tv );
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| 347 |
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| 348 |
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| 349 | /**
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| 350 | * \name Simulated Xlib functions
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| 351 | */
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| 352 | /*@{*/
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| 353 | extern MINI_Display *
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| 354 | XOpenDisplay( const char *dpy_name );
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| 355 |
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| 356 |
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| 357 | extern void
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| 358 | XCloseDisplay( MINI_Display *display );
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| 359 |
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| 360 | extern MINI_Window
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| 361 | XCreateWindow( MINI_Display *display, MINI_Window parent, int x, int y,
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| 362 | unsigned int width, unsigned int height,
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| 363 | unsigned int border_width, int depth, unsigned int winclass,
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| 364 | Visual *visual, unsigned long valuemask,
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| 365 | XSetWindowAttributes *attributes );
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| 366 |
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| 367 | extern int
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| 368 | XNextEvent(MINI_Display *display, XEvent *event_return);
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| 369 |
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| 370 | extern MINI_Bool
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| 371 | XCheckMaskEvent( MINI_Display *dpy, long event_mask, XEvent *event_return );
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| 372 |
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| 373 | /**
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| 374 | * \brief Return the root window.
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| 375 | *
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| 376 | * \param display the display handle. It is ignored by Mini GLX, but should be
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| 377 | * the value returned by XOpenDisplay().
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| 378 | * \param screen the screen number on the host server. It is ignored by Mini
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| 379 | * GLX but should be zero.
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| 380 | *
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| 381 | * \return the root window. Always zero on Mini GLX.
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| 382 | */
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| 383 | #define RootWindow(display, screen) 0
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| 384 | #define DefaultScreen(dpy) 0
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| 385 |
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| 386 | extern void
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| 387 | XDestroyWindow( MINI_Display *display, MINI_Window w );
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| 388 |
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| 389 | extern void
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| 390 | XMapWindow( MINI_Display *display, MINI_Window w );
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| 391 |
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| 392 | /* Should clients have access to this?
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| 393 | */
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| 394 | extern void
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| 395 | XUnmapWindow( MINI_Display *display, MINI_Window w );
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| 396 |
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| 397 | extern MINI_Colormap
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| 398 | XCreateColormap( MINI_Display *display, MINI_Window w, Visual *visual, int alloc );
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| 399 |
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| 400 | extern void
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| 401 | XFreeColormap( MINI_Display *display, MINI_Colormap cmap );
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| 402 |
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| 403 | extern void
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| 404 | XFree( void *data );
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| 405 |
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| 406 | extern XVisualInfo *
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| 407 | XGetVisualInfo( MINI_Display *display, long vinfo_mask,
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| 408 | XVisualInfo *vinfo_template, int *nitems_return );
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| 409 | /*@}*/
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| 410 |
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| 411 |
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| 412 |
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| 413 | /**
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| 414 | * \name GLX functions
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| 415 | */
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| 416 | /*@{*/
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| 417 | extern XVisualInfo*
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| 418 | glXChooseVisual( MINI_Display *dpy, int screen, int *attribList );
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| 419 |
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| 420 | extern int
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| 421 | glXGetConfig( MINI_Display *dpy, XVisualInfo *vis, int attrib, int *value );
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| 422 |
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| 423 | extern GLXContext
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| 424 | glXCreateContext( MINI_Display *dpy, XVisualInfo *vis,
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| 425 | GLXContext shareList, MINI_Bool direct );
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| 426 |
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| 427 | extern void
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| 428 | glXDestroyContext( MINI_Display *dpy, GLXContext ctx );
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| 429 |
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| 430 | extern MINI_Bool
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| 431 | glXMakeCurrent( MINI_Display *dpy, GLXDrawable drawable, GLXContext ctx);
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| 432 |
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| 433 | extern void
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| 434 | glXSwapBuffers( MINI_Display *dpy, GLXDrawable drawable );
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| 435 |
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| 436 | extern GLXContext
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| 437 | glXGetCurrentContext( void );
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| 438 |
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| 439 | extern GLXDrawable
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| 440 | glXGetCurrentDrawable( void );
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| 441 |
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| 442 | extern void
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| 443 | (*glXGetProcAddress(const GLubyte *procname))( void );
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| 444 |
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| 445 | extern MINI_Bool
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| 446 | glXQueryVersion( MINI_Display *dpy, int *major, int *minor );
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| 447 |
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| 448 | /* Added in MiniGLX 1.1 */
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| 449 | extern GLXPbuffer
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| 450 | glXCreatePbuffer( MINI_Display *dpy, GLXFBConfig config, const int *attribList );
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| 451 |
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| 452 | extern void
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| 453 | glXDestroyPbuffer( MINI_Display *dpy, GLXPbuffer pbuf );
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| 454 |
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| 455 | extern GLXFBConfig *
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| 456 | glXChooseFBConfig( MINI_Display *dpy, int screen, const int *attribList,
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| 457 | int *nitems );
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| 458 |
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| 459 | extern XVisualInfo *
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| 460 | glXGetVisualFromFBConfig( MINI_Display *dpy, GLXFBConfig config );
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| 461 |
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| 462 | extern void *glXAllocateMemoryMESA(Display *dpy, int scrn,
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| 463 | size_t size, float readFreq,
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| 464 | float writeFreq, float priority);
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| 465 |
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| 466 | extern void glXFreeMemoryMESA(Display *dpy, int scrn, void *pointer);
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| 467 |
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| 468 | extern GLuint glXGetMemoryOffsetMESA( Display *dpy, int scrn,
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| 469 | const void *pointer );
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| 470 | /*@}*/
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| 471 |
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| 472 | extern void
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| 473 | __glXScrEnableExtension( void *, const char * name );
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| 474 |
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| 475 | /*@}*/
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| 476 |
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| 477 |
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| 478 | #ifdef __cplusplus
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| 479 | }
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| 480 | #endif
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| 481 |
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| 482 | #endif /* MINIGLX_H */
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