Merge of apricot branch game engine changes into trunk, excluding GLSL.

GLEW
====

Added the GLEW opengl extension library into extern/, always compiled
into Blender now. This is much nicer than doing this kind of extension
management manually, and will be used in the game engine, for GLSL, and
other opengl extensions.

* According to the GLEW website it works on Windows, Linux, Mac OS X,
  FreeBSD, Irix, and Solaris. There might still be platform specific
  issues due to this commit, so let me know and I'll look into it.
* This means also that all extensions will now always be compiled in,
  regardless of the glext.h on the platform where compilation happens.

Game Engine
===========

Refactoring of the use of opengl extensions and other drawing code
in the game engine, and cleaning up some hacks related to GLSL
integration. These changes will be merged into trunk too after this.

The game engine graphics demos & apricot level survived my tests,
but this could use some good testing of course.

For users: please test with the options "Generate Display Lists" and
"Vertex Arrays" enabled, these should be the fastest and are supposed
to be "unreliable", but if that's the case that's probably due to bugs
that can be fixed.

* The game engine now also uses GLEW for extensions, replacing the
  custom opengl extensions code that was there. Removes a lot of
  #ifdef's, but the runtime checks stay of course.
* Removed the WITHOUT_GLEXT environment variable. This was added to
  work around a specific bug and only disabled multitexturing anyway.
  It might also have caused a slowdown since it was retrieving the
  environment variable for every vertex in immediate mode (bug #13680).

* Refactored the code to allow drawing skinned meshes with vertex
  arrays too, removing some specific immediate mode drawing functions
  for this that only did extra normal calculation. Now it always splits
  vertices of flat faces instead.
* Refactored normal recalculation with some minor optimizations,
  required for the above change.
* Removed some outdated code behind the __NLA_OLDDEFORM #ifdef.
* Fixed various bugs in setting of multitexture coordinates and vertex
  attributes for vertex arrays. These were not being enabled/disabled
  correct according to the opengl spec, leading to crashes. Also tangent
  attributes used an immediate mode call for vertex arrays, which can't
  work.
* Fixed use of uninitialized variable in RAS_TexVert.
* Exporting skinned meshes was doing O(n^2) lookups for vertices and
  deform weights, now uses same trick as regular meshes.

1 files changed, 1062 insertions, 0 deletions

diff --git a/extern/glew/include/GL/glxew.h b/extern/glew/include/GL/glxew.h
new file mode 100644
index 00000000000..d21397aeed4
--- /dev/null
+++ b/extern/glew/include/GL/glxew.h
@@ -0,0 +1,1062 @@
+/*
+** The OpenGL Extension Wrangler Library
+** Copyright (C) 2002-2006, Milan Ikits <milan ikits[]ieee org>
+** Copyright (C) 2002-2006, Marcelo E. Magallon <mmagallo[]debian org>
+** Copyright (C) 2002, Lev Povalahev
+** All rights reserved.
+** 
+** Redistribution and use in source and binary forms, with or without 
+** modification, are permitted provided that the following conditions are met:
+** 
+** * Redistributions of source code must retain the above copyright notice, 
+**   this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright notice, 
+**   this list of conditions and the following disclaimer in the documentation 
+**   and/or other materials provided with the distribution.
+** * The name of the author may be used to endorse or promote products 
+**   derived from this software without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+** ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+** LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+** CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+** SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+** INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+** CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+** ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+** THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+** The contents of this file are subject to the GLX Public License Version 1.0
+** (the "License"). You may not use this file except in compliance with the
+** License. You may obtain a copy of the License at Silicon Graphics, Inc.,
+** attn: Legal Services, 2011 N. Shoreline Blvd., Mountain View, CA 94043
+** or at http://www.sgi.com/software/opensource/glx/license.html.
+**
+** Software distributed under the License is distributed on an "AS IS"
+** basis. ALL WARRANTIES ARE DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY
+** IMPLIED WARRANTIES OF MERCHANTABILITY, OF FITNESS FOR A PARTICULAR
+** PURPOSE OR OF NON- INFRINGEMENT. See the License for the specific
+** language governing rights and limitations under the License.
+**
+** The Original Software is GLX version 1.2 source code, released February,
+** 1999. The developer of the Original Software is Silicon Graphics, Inc.
+** Those portions of the Subject Software created by Silicon Graphics, Inc.
+** are Copyright (c) 1991-9 Silicon Graphics, Inc. All Rights Reserved.
+*/
+
+#ifndef __glxew_h__
+#define __glxew_h__
+#define __GLXEW_H__
+
+#ifdef __glxext_h_
+#error glxext.h included before glxew.h
+#endif
+
+#define __glxext_h_
+#define __GLX_glx_h__
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xmd.h>
+#include <GL/glew.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ---------------------------- GLX_VERSION_1_0 --------------------------- */
+
+#ifndef GLX_VERSION_1_0
+#define GLX_VERSION_1_0 1
+
+#define GLX_USE_GL 1
+#define GLX_BUFFER_SIZE 2
+#define GLX_LEVEL 3
+#define GLX_RGBA 4
+#define GLX_DOUBLEBUFFER 5
+#define GLX_STEREO 6
+#define GLX_AUX_BUFFERS 7
+#define GLX_RED_SIZE 8
+#define GLX_GREEN_SIZE 9
+#define GLX_BLUE_SIZE 10
+#define GLX_ALPHA_SIZE 11
+#define GLX_DEPTH_SIZE 12
+#define GLX_STENCIL_SIZE 13
+#define GLX_ACCUM_RED_SIZE 14
+#define GLX_ACCUM_GREEN_SIZE 15
+#define GLX_ACCUM_BLUE_SIZE 16
+#define GLX_ACCUM_ALPHA_SIZE 17
+#define GLX_BAD_SCREEN 1
+#define GLX_BAD_ATTRIBUTE 2
+#define GLX_NO_EXTENSION 3
+#define GLX_BAD_VISUAL 4
+#define GLX_BAD_CONTEXT 5
+#define GLX_BAD_VALUE 6
+#define GLX_BAD_ENUM 7
+
+typedef XID GLXDrawable;
+typedef XID GLXPixmap;
+typedef struct __GLXcontextRec *GLXContext;
+
+extern Bool glXQueryExtension (Display *dpy, int *errorBase, int *eventBase);
+extern Bool glXQueryVersion (Display *dpy, int *major, int *minor);
+extern int glXGetConfig (Display *dpy, XVisualInfo *vis, int attrib, int *value);
+extern XVisualInfo* glXChooseVisual (Display *dpy, int screen, int *attribList);
+extern GLXPixmap glXCreateGLXPixmap (Display *dpy, XVisualInfo *vis, Pixmap pixmap);
+extern void glXDestroyGLXPixmap (Display *dpy, GLXPixmap pix);
+extern GLXContext glXCreateContext (Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
+extern void glXDestroyContext (Display *dpy, GLXContext ctx);
+extern Bool glXIsDirect (Display *dpy, GLXContext ctx);
+extern void glXCopyContext (Display *dpy, GLXContext src, GLXContext dst, GLuint mask);
+extern Bool glXMakeCurrent (Display *dpy, GLXDrawable drawable, GLXContext ctx);
+extern GLXContext glXGetCurrentContext (void);
+extern GLXDrawable glXGetCurrentDrawable (void);
+extern void glXWaitGL (void);
+extern void glXWaitX (void);
+extern void glXSwapBuffers (Display *dpy, GLXDrawable drawable);
+extern void glXUseXFont (Font font, int first, int count, int listBase);
+
+#define GLXEW_VERSION_1_0 GLXEW_GET_VAR(__GLXEW_VERSION_1_0)
+
+#endif /* GLX_VERSION_1_0 */
+
+/* ---------------------------- GLX_VERSION_1_1 --------------------------- */
+
+#ifndef GLX_VERSION_1_1
+#define GLX_VERSION_1_1
+
+#define GLX_VENDOR 0x1
+#define GLX_VERSION 0x2
+#define GLX_EXTENSIONS 0x3
+
+extern const char* glXQueryExtensionsString (Display *dpy, int screen);
+extern const char* glXGetClientString (Display *dpy, int name);
+extern const char* glXQueryServerString (Display *dpy, int screen, int name);
+
+#define GLXEW_VERSION_1_1 GLXEW_GET_VAR(__GLXEW_VERSION_1_1)
+
+#endif /* GLX_VERSION_1_1 */
+
+/* ---------------------------- GLX_VERSION_1_2 ---------------------------- */
+
+#ifndef GLX_VERSION_1_2
+#define GLX_VERSION_1_2 1
+
+typedef Display* ( * PFNGLXGETCURRENTDISPLAYPROC) (void);
+
+#define glXGetCurrentDisplay GLXEW_GET_FUN(__glewXGetCurrentDisplay)
+
+#define GLXEW_VERSION_1_2 GLXEW_GET_VAR(__GLXEW_VERSION_1_2)
+
+#endif /* GLX_VERSION_1_2 */
+
+/* ---------------------------- GLX_VERSION_1_3 ---------------------------- */
+
+#ifndef GLX_VERSION_1_3
+#define GLX_VERSION_1_3 1
+
+#define GLX_RGBA_BIT 0x00000001
+#define GLX_FRONT_LEFT_BUFFER_BIT 0x00000001
+#define GLX_WINDOW_BIT 0x00000001
+#define GLX_COLOR_INDEX_BIT 0x00000002
+#define GLX_PIXMAP_BIT 0x00000002
+#define GLX_FRONT_RIGHT_BUFFER_BIT 0x00000002
+#define GLX_BACK_LEFT_BUFFER_BIT 0x00000004
+#define GLX_PBUFFER_BIT 0x00000004
+#define GLX_BACK_RIGHT_BUFFER_BIT 0x00000008
+#define GLX_AUX_BUFFERS_BIT 0x00000010
+#define GLX_CONFIG_CAVEAT 0x20
+#define GLX_DEPTH_BUFFER_BIT 0x00000020
+#define GLX_X_VISUAL_TYPE 0x22
+#define GLX_TRANSPARENT_TYPE 0x23
+#define GLX_TRANSPARENT_INDEX_VALUE 0x24
+#define GLX_TRANSPARENT_RED_VALUE 0x25
+#define GLX_TRANSPARENT_GREEN_VALUE 0x26
+#define GLX_TRANSPARENT_BLUE_VALUE 0x27
+#define GLX_TRANSPARENT_ALPHA_VALUE 0x28
+#define GLX_STENCIL_BUFFER_BIT 0x00000040
+#define GLX_ACCUM_BUFFER_BIT 0x00000080
+#define GLX_NONE 0x8000
+#define GLX_SLOW_CONFIG 0x8001
+#define GLX_TRUE_COLOR 0x8002
+#define GLX_DIRECT_COLOR 0x8003
+#define GLX_PSEUDO_COLOR 0x8004
+#define GLX_STATIC_COLOR 0x8005
+#define GLX_GRAY_SCALE 0x8006
+#define GLX_STATIC_GRAY 0x8007
+#define GLX_TRANSPARENT_RGB 0x8008
+#define GLX_TRANSPARENT_INDEX 0x8009
+#define GLX_VISUAL_ID 0x800B
+#define GLX_SCREEN 0x800C
+#define GLX_NON_CONFORMANT_CONFIG 0x800D
+#define GLX_DRAWABLE_TYPE 0x8010
+#define GLX_RENDER_TYPE 0x8011
+#define GLX_X_RENDERABLE 0x8012
+#define GLX_FBCONFIG_ID 0x8013
+#define GLX_RGBA_TYPE 0x8014
+#define GLX_COLOR_INDEX_TYPE 0x8015
+#define GLX_MAX_PBUFFER_WIDTH 0x8016
+#define GLX_MAX_PBUFFER_HEIGHT 0x8017
+#define GLX_MAX_PBUFFER_PIXELS 0x8018
+#define GLX_PRESERVED_CONTENTS 0x801B
+#define GLX_LARGEST_PBUFFER 0x801C
+#define GLX_WIDTH 0x801D
+#define GLX_HEIGHT 0x801E
+#define GLX_EVENT_MASK 0x801F
+#define GLX_DAMAGED 0x8020
+#define GLX_SAVED 0x8021
+#define GLX_WINDOW 0x8022
+#define GLX_PBUFFER 0x8023
+#define GLX_PBUFFER_HEIGHT 0x8040
+#define GLX_PBUFFER_WIDTH 0x8041
+#define GLX_PBUFFER_CLOBBER_MASK 0x08000000
+#define GLX_DONT_CARE 0xFFFFFFFF
+
+typedef XID GLXFBConfigID;
+typedef XID GLXWindow;
+typedef XID GLXPbuffer;
+typedef struct __GLXFBConfigRec *GLXFBConfig;
+typedef struct { int event_type; int draw_type; unsigned long serial; Bool send_event; Display *display; GLXDrawable drawable; unsigned int buffer_mask; unsigned int aux_buffer; int x, y; int width, height; int count; } GLXPbufferClobberEvent;
+typedef union __GLXEvent { GLXPbufferClobberEvent glxpbufferclobber; long pad[24]; } GLXEvent;
+
+typedef GLXFBConfig* ( * PFNGLXCHOOSEFBCONFIGPROC) (Display *dpy, int screen, const int *attrib_list, int *nelements);
+typedef GLXContext ( * PFNGLXCREATENEWCONTEXTPROC) (Display *dpy, GLXFBConfig config, int render_type, GLXContext share_list, Bool direct);
+typedef GLXPbuffer ( * PFNGLXCREATEPBUFFERPROC) (Display *dpy, GLXFBConfig config, const int *attrib_list);
+typedef GLXPixmap ( * PFNGLXCREATEPIXMAPPROC) (Display *dpy, GLXFBConfig config, Pixmap pixmap, const int *attrib_list);
+typedef GLXWindow ( * PFNGLXCREATEWINDOWPROC) (Display *dpy, GLXFBConfig config, Window win, const int *attrib_list);
+typedef void ( * PFNGLXDESTROYPBUFFERPROC) (Display *dpy, GLXPbuffer pbuf);
+typedef void ( * PFNGLXDESTROYPIXMAPPROC) (Display *dpy, GLXPixmap pixmap);
+typedef void ( * PFNGLXDESTROYWINDOWPROC) (Display *dpy, GLXWindow win);
+typedef GLXDrawable ( * PFNGLXGETCURRENTREADDRAWABLEPROC) (void);
+typedef int ( * PFNGLXGETFBCONFIGATTRIBPROC) (Display *dpy, GLXFBConfig config, int attribute, int *value);
+typedef GLXFBConfig* ( * PFNGLXGETFBCONFIGSPROC) (Display *dpy, int screen, int *nelements);
+typedef void ( * PFNGLXGETSELECTEDEVENTPROC) (Display *dpy, GLXDrawable draw, unsigned long *event_mask);
+typedef XVisualInfo* ( * PFNGLXGETVISUALFROMFBCONFIGPROC) (Display *dpy, GLXFBConfig config);
+typedef Bool ( * PFNGLXMAKECONTEXTCURRENTPROC) (Display *display, GLXDrawable draw, GLXDrawable read, GLXContext ctx);
+typedef int ( * PFNGLXQUERYCONTEXTPROC) (Display *dpy, GLXContext ctx, int attribute, int *value);
+typedef void ( * PFNGLXQUERYDRAWABLEPROC) (Display *dpy, GLXDrawable draw, int attribute, unsigned int *value);
+typedef void ( * PFNGLXSELECTEVENTPROC) (Display *dpy, GLXDrawable draw, unsigned long event_mask);
+
+#define glXChooseFBConfig GLXEW_GET_FUN(__glewXChooseFBConfig)
+#define glXCreateNewContext GLXEW_GET_FUN(__glewXCreateNewContext)
+#define glXCreatePbuffer GLXEW_GET_FUN(__glewXCreatePbuffer)
+#define glXCreatePixmap GLXEW_GET_FUN(__glewXCreatePixmap)
+#define glXCreateWindow GLXEW_GET_FUN(__glewXCreateWindow)
+#define glXDestroyPbuffer GLXEW_GET_FUN(__glewXDestroyPbuffer)
+#define glXDestroyPixmap GLXEW_GET_FUN(__glewXDestroyPixmap)
+#define glXDestroyWindow GLXEW_GET_FUN(__glewXDestroyWindow)
+#define glXGetCurrentReadDrawable GLXEW_GET_FUN(__glewXGetCurrentReadDrawable)
+#define glXGetFBConfigAttrib GLXEW_GET_FUN(__glewXGetFBConfigAttrib)
+#define glXGetFBConfigs GLXEW_GET_FUN(__glewXGetFBConfigs)
+#define glXGetSelectedEvent GLXEW_GET_FUN(__glewXGetSelectedEvent)
+#define glXGetVisualFromFBConfig GLXEW_GET_FUN(__glewXGetVisualFromFBConfig)
+#define glXMakeContextCurrent GLXEW_GET_FUN(__glewXMakeContextCurrent)
+#define glXQueryContext GLXEW_GET_FUN(__glewXQueryContext)
+#define glXQueryDrawable GLXEW_GET_FUN(__glewXQueryDrawable)
+#define glXSelectEvent GLXEW_GET_FUN(__glewXSelectEvent)
+
+#define GLXEW_VERSION_1_3 GLXEW_GET_VAR(__GLXEW_VERSION_1_3)
+
+#endif /* GLX_VERSION_1_3 */
+
+/* ---------------------------- GLX_VERSION_1_4 ---------------------------- */
+
+#ifndef GLX_VERSION_1_4
+#define GLX_VERSION_1_4 1
+
+#define GLX_SAMPLE_BUFFERS 100000
+#define GLX_SAMPLES 100001
+
+extern void ( * glXGetProcAddress (const GLubyte *procName)) (void);
+
+#define GLXEW_VERSION_1_4 GLXEW_GET_VAR(__GLXEW_VERSION_1_4)
+
+#endif /* GLX_VERSION_1_4 */
+
+/* -------------------------- GLX_3DFX_multisample ------------------------- */
+
+#ifndef GLX_3DFX_multisample
+#define GLX_3DFX_multisample 1
+
+#define GLX_SAMPLE_BUFFERS_3DFX 0x8050
+#define GLX_SAMPLES_3DFX 0x8051
+
+#define GLXEW_3DFX_multisample GLXEW_GET_VAR(__GLXEW_3DFX_multisample)
+
+#endif /* GLX_3DFX_multisample */
+
+/* ------------------------- GLX_ARB_fbconfig_float ------------------------ */
+
+#ifndef GLX_ARB_fbconfig_float
+#define GLX_ARB_fbconfig_float 1
+
+#define GLX_RGBA_FLOAT_BIT 0x00000004
+#define GLX_RGBA_FLOAT_TYPE 0x20B9
+
+#define GLXEW_ARB_fbconfig_float GLXEW_GET_VAR(__GLXEW_ARB_fbconfig_float)
+
+#endif /* GLX_ARB_fbconfig_float */
+
+/* ------------------------ GLX_ARB_get_proc_address ----------------------- */
+
+#ifndef GLX_ARB_get_proc_address
+#define GLX_ARB_get_proc_address 1
+
+extern void ( * glXGetProcAddressARB (const GLubyte *procName)) (void);
+
+#define GLXEW_ARB_get_proc_address GLXEW_GET_VAR(__GLXEW_ARB_get_proc_address)
+
+#endif /* GLX_ARB_get_proc_address */
+
+/* -------------------------- GLX_ARB_multisample -------------------------- */
+
+#ifndef GLX_ARB_multisample
+#define GLX_ARB_multisample 1
+
+#define GLX_SAMPLE_BUFFERS_ARB 100000
+#define GLX_SAMPLES_ARB 100001
+
+#define GLXEW_ARB_multisample GLXEW_GET_VAR(__GLXEW_ARB_multisample)
+
+#endif /* GLX_ARB_multisample */
+
+/* ----------------------- GLX_ATI_pixel_format_float ---------------------- */
+
+#ifndef GLX_ATI_pixel_format_float
+#define GLX_ATI_pixel_format_float 1
+
+#define GLX_RGBA_FLOAT_ATI_BIT 0x00000100
+
+#define GLXEW_ATI_pixel_format_float GLXEW_GET_VAR(__GLXEW_ATI_pixel_format_float)
+
+#endif /* GLX_ATI_pixel_format_float */
+
+/* ------------------------- GLX_ATI_render_texture ------------------------ */
+
+#ifndef GLX_ATI_render_texture
+#define GLX_ATI_render_texture 1
+
+#define GLX_BIND_TO_TEXTURE_RGB_ATI 0x9800
+#define GLX_BIND_TO_TEXTURE_RGBA_ATI 0x9801
+#define GLX_TEXTURE_FORMAT_ATI 0x9802
+#define GLX_TEXTURE_TARGET_ATI 0x9803
+#define GLX_MIPMAP_TEXTURE_ATI 0x9804
+#define GLX_TEXTURE_RGB_ATI 0x9805
+#define GLX_TEXTURE_RGBA_ATI 0x9806
+#define GLX_NO_TEXTURE_ATI 0x9807
+#define GLX_TEXTURE_CUBE_MAP_ATI 0x9808
+#define GLX_TEXTURE_1D_ATI 0x9809
+#define GLX_TEXTURE_2D_ATI 0x980A
+#define GLX_MIPMAP_LEVEL_ATI 0x980B
+#define GLX_CUBE_MAP_FACE_ATI 0x980C
+#define GLX_TEXTURE_CUBE_MAP_POSITIVE_X_ATI 0x980D
+#define GLX_TEXTURE_CUBE_MAP_NEGATIVE_X_ATI 0x980E
+#define GLX_TEXTURE_CUBE_MAP_POSITIVE_Y_ATI 0x980F
+#define GLX_TEXTURE_CUBE_MAP_NEGATIVE_Y_ATI 0x9810
+#define GLX_TEXTURE_CUBE_MAP_POSITIVE_Z_ATI 0x9811
+#define GLX_TEXTURE_CUBE_MAP_NEGATIVE_Z_ATI 0x9812
+#define GLX_FRONT_LEFT_ATI 0x9813
+#define GLX_FRONT_RIGHT_ATI 0x9814
+#define GLX_BACK_LEFT_ATI 0x9815
+#define GLX_BACK_RIGHT_ATI 0x9816
+#define GLX_AUX0_ATI 0x9817
+#define GLX_AUX1_ATI 0x9818
+#define GLX_AUX2_ATI 0x9819
+#define GLX_AUX3_ATI 0x981A
+#define GLX_AUX4_ATI 0x981B
+#define GLX_AUX5_ATI 0x981C
+#define GLX_AUX6_ATI 0x981D
+#define GLX_AUX7_ATI 0x981E
+#define GLX_AUX8_ATI 0x981F
+#define GLX_AUX9_ATI 0x9820
+#define GLX_BIND_TO_TEXTURE_LUMINANCE_ATI 0x9821
+#define GLX_BIND_TO_TEXTURE_INTENSITY_ATI 0x9822
+
+typedef void ( * PFNGLXBINDTEXIMAGEATIPROC) (Display *dpy, GLXPbuffer pbuf, int buffer);
+typedef void ( * PFNGLXDRAWABLEATTRIBATIPROC) (Display *dpy, GLXDrawable draw, const int *attrib_list);
+typedef void ( * PFNGLXRELEASETEXIMAGEATIPROC) (Display *dpy, GLXPbuffer pbuf, int buffer);
+
+#define glXBindTexImageATI GLXEW_GET_FUN(__glewXBindTexImageATI)
+#define glXDrawableAttribATI GLXEW_GET_FUN(__glewXDrawableAttribATI)
+#define glXReleaseTexImageATI GLXEW_GET_FUN(__glewXReleaseTexImageATI)
+
+#define GLXEW_ATI_render_texture GLXEW_GET_VAR(__GLXEW_ATI_render_texture)
+
+#endif /* GLX_ATI_render_texture */
+
+/* ------------------------- GLX_EXT_import_context ------------------------ */
+
+#ifndef GLX_EXT_import_context
+#define GLX_EXT_import_context 1
+
+#define GLX_SHARE_CONTEXT_EXT 0x800A
+#define GLX_VISUAL_ID_EXT 0x800B
+#define GLX_SCREEN_EXT 0x800C
+
+typedef XID GLXContextID;
+
+typedef void ( * PFNGLXFREECONTEXTEXTPROC) (Display* dpy, GLXContext context);
+typedef GLXContextID ( * PFNGLXGETCONTEXTIDEXTPROC) (const GLXContext context);
+typedef GLXContext ( * PFNGLXIMPORTCONTEXTEXTPROC) (Display* dpy, GLXContextID contextID);
+typedef int ( * PFNGLXQUERYCONTEXTINFOEXTPROC) (Display* dpy, GLXContext context, int attribute,int *value);
+
+#define glXFreeContextEXT GLXEW_GET_FUN(__glewXFreeContextEXT)
+#define glXGetContextIDEXT GLXEW_GET_FUN(__glewXGetContextIDEXT)
+#define glXImportContextEXT GLXEW_GET_FUN(__glewXImportContextEXT)
+#define glXQueryContextInfoEXT GLXEW_GET_FUN(__glewXQueryContextInfoEXT)
+
+#define GLXEW_EXT_import_context GLXEW_GET_VAR(__GLXEW_EXT_import_context)
+
+#endif /* GLX_EXT_import_context */
+
+/* -------------------------- GLX_EXT_scene_marker ------------------------- */
+
+#ifndef GLX_EXT_scene_marker
+#define GLX_EXT_scene_marker 1
+
+#define GLXEW_EXT_scene_marker GLXEW_GET_VAR(__GLXEW_EXT_scene_marker)
+
+#endif /* GLX_EXT_scene_marker */
+
+/* -------------------------- GLX_EXT_visual_info -------------------------- */
+
+#ifndef GLX_EXT_visual_info
+#define GLX_EXT_visual_info 1
+
+#define GLX_X_VISUAL_TYPE_EXT 0x22
+#define GLX_TRANSPARENT_TYPE_EXT 0x23
+#define GLX_TRANSPARENT_INDEX_VALUE_EXT 0x24
+#define GLX_TRANSPARENT_RED_VALUE_EXT 0x25
+#define GLX_TRANSPARENT_GREEN_VALUE_EXT 0x26
+#define GLX_TRANSPARENT_BLUE_VALUE_EXT 0x27
+#define GLX_TRANSPARENT_ALPHA_VALUE_EXT 0x28
+#define GLX_NONE_EXT 0x8000
+#define GLX_TRUE_COLOR_EXT 0x8002
+#define GLX_DIRECT_COLOR_EXT 0x8003
+#define GLX_PSEUDO_COLOR_EXT 0x8004
+#define GLX_STATIC_COLOR_EXT 0x8005
+#define GLX_GRAY_SCALE_EXT 0x8006
+#define GLX_STATIC_GRAY_EXT 0x8007
+#define GLX_TRANSPARENT_RGB_EXT 0x8008
+#define GLX_TRANSPARENT_INDEX_EXT 0x8009
+
+#define GLXEW_EXT_visual_info GLXEW_GET_VAR(__GLXEW_EXT_visual_info)
+
+#endif /* GLX_EXT_visual_info */
+
+/* ------------------------- GLX_EXT_visual_rating ------------------------- */
+
+#ifndef GLX_EXT_visual_rating
+#define GLX_EXT_visual_rating 1
+
+#define GLX_VISUAL_CAVEAT_EXT 0x20
+#define GLX_SLOW_VISUAL_EXT 0x8001
+#define GLX_NON_CONFORMANT_VISUAL_EXT 0x800D
+
+#define GLXEW_EXT_visual_rating GLXEW_GET_VAR(__GLXEW_EXT_visual_rating)
+
+#endif /* GLX_EXT_visual_rating */
+
+/* -------------------------- GLX_MESA_agp_offset -------------------------- */
+
+#ifndef GLX_MESA_agp_offset
+#define GLX_MESA_agp_offset 1
+
+typedef unsigned int ( * PFNGLXGETAGPOFFSETMESAPROC) (const void* pointer);
+
+#define glXGetAGPOffsetMESA GLXEW_GET_FUN(__glewXGetAGPOffsetMESA)
+
+#define GLXEW_MESA_agp_offset GLXEW_GET_VAR(__GLXEW_MESA_agp_offset)
+
+#endif /* GLX_MESA_agp_offset */
+
+/* ------------------------ GLX_MESA_copy_sub_buffer ----------------------- */
+
+#ifndef GLX_MESA_copy_sub_buffer
+#define GLX_MESA_copy_sub_buffer 1
+
+typedef void ( * PFNGLXCOPYSUBBUFFERMESAPROC) (Display* dpy, GLXDrawable drawable, int x, int y, int width, int height);
+
+#define glXCopySubBufferMESA GLXEW_GET_FUN(__glewXCopySubBufferMESA)
+
+#define GLXEW_MESA_copy_sub_buffer GLXEW_GET_VAR(__GLXEW_MESA_copy_sub_buffer)
+
+#endif /* GLX_MESA_copy_sub_buffer */
+
+/* ------------------------ GLX_MESA_pixmap_colormap ----------------------- */
+
+#ifndef GLX_MESA_pixmap_colormap
+#define GLX_MESA_pixmap_colormap 1
+
+typedef GLXPixmap ( * PFNGLXCREATEGLXPIXMAPMESAPROC) (Display* dpy, XVisualInfo *visual, Pixmap pixmap, Colormap cmap);
+
+#define glXCreateGLXPixmapMESA GLXEW_GET_FUN(__glewXCreateGLXPixmapMESA)
+
+#define GLXEW_MESA_pixmap_colormap GLXEW_GET_VAR(__GLXEW_MESA_pixmap_colormap)
+
+#endif /* GLX_MESA_pixmap_colormap */
+
+/* ------------------------ GLX_MESA_release_buffers ----------------------- */
+
+#ifndef GLX_MESA_release_buffers
+#define GLX_MESA_release_buffers 1
+
+typedef Bool ( * PFNGLXRELEASEBUFFERSMESAPROC) (Display* dpy, GLXDrawable d);
+
+#define glXReleaseBuffersMESA GLXEW_GET_FUN(__glewXReleaseBuffersMESA)
+
+#define GLXEW_MESA_release_buffers GLXEW_GET_VAR(__GLXEW_MESA_release_buffers)
+
+#endif /* GLX_MESA_release_buffers */
+
+/* ------------------------- GLX_MESA_set_3dfx_mode ------------------------ */
+
+#ifndef GLX_MESA_set_3dfx_mode
+#define GLX_MESA_set_3dfx_mode 1
+
+#define GLX_3DFX_WINDOW_MODE_MESA 0x1
+#define GLX_3DFX_FULLSCREEN_MODE_MESA 0x2
+
+typedef GLboolean ( * PFNGLXSET3DFXMODEMESAPROC) (GLint mode);
+
+#define glXSet3DfxModeMESA GLXEW_GET_FUN(__glewXSet3DfxModeMESA)
+
+#define GLXEW_MESA_set_3dfx_mode GLXEW_GET_VAR(__GLXEW_MESA_set_3dfx_mode)
+
+#endif /* GLX_MESA_set_3dfx_mode */
+
+/* -------------------------- GLX_NV_float_buffer -------------------------- */
+
+#ifndef GLX_NV_float_buffer
+#define GLX_NV_float_buffer 1
+
+#define GLX_FLOAT_COMPONENTS_NV 0x20B0
+
+#define GLXEW_NV_float_buffer GLXEW_GET_VAR(__GLXEW_NV_float_buffer)
+
+#endif /* GLX_NV_float_buffer */
+
+/* ----------------------- GLX_NV_vertex_array_range ----------------------- */
+
+#ifndef GLX_NV_vertex_array_range
+#define GLX_NV_vertex_array_range 1
+
+typedef void * ( * PFNGLXALLOCATEMEMORYNVPROC) (GLsizei size, GLfloat readFrequency, GLfloat writeFrequency, GLfloat priority);
+typedef void ( * PFNGLXFREEMEMORYNVPROC) (void *pointer);
+
+#define glXAllocateMemoryNV GLXEW_GET_FUN(__glewXAllocateMemoryNV)
+#define glXFreeMemoryNV GLXEW_GET_FUN(__glewXFreeMemoryNV)
+
+#define GLXEW_NV_vertex_array_range GLXEW_GET_VAR(__GLXEW_NV_vertex_array_range)
+
+#endif /* GLX_NV_vertex_array_range */
+
+/* -------------------------- GLX_OML_swap_method -------------------------- */
+
+#ifndef GLX_OML_swap_method
+#define GLX_OML_swap_method 1
+
+#define GLX_SWAP_METHOD_OML 0x8060
+#define GLX_SWAP_EXCHANGE_OML 0x8061
+#define GLX_SWAP_COPY_OML 0x8062
+#define GLX_SWAP_UNDEFINED_OML 0x8063
+
+#define GLXEW_OML_swap_method GLXEW_GET_VAR(__GLXEW_OML_swap_method)
+
+#endif /* GLX_OML_swap_method */
+
+/* -------------------------- GLX_OML_sync_control ------------------------- */
+
+#if !defined(GLX_OML_sync_control) && defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
+#include <inttypes.h>
+#define GLX_OML_sync_control 1
+
+typedef Bool ( * PFNGLXGETMSCRATEOMLPROC) (Display* dpy, GLXDrawable drawable, int32_t* numerator, int32_t* denominator);
+typedef Bool ( * PFNGLXGETSYNCVALUESOMLPROC) (Display* dpy, GLXDrawable drawable, int64_t* ust, int64_t* msc, int64_t* sbc);
+typedef int64_t ( * PFNGLXSWAPBUFFERSMSCOMLPROC) (Display* dpy, GLXDrawable drawable, int64_t target_msc, int64_t divisor, int64_t remainder);
+typedef Bool ( * PFNGLXWAITFORMSCOMLPROC) (Display* dpy, GLXDrawable drawable, int64_t target_msc, int64_t divisor, int64_t remainder, int64_t* ust, int64_t* msc, int64_t* sbc);
+typedef Bool ( * PFNGLXWAITFORSBCOMLPROC) (Display* dpy, GLXDrawable drawable, int64_t target_sbc, int64_t* ust, int64_t* msc, int64_t* sbc);
+
+#define glXGetMscRateOML GLXEW_GET_FUN(__glewXGetMscRateOML)
+#define glXGetSyncValuesOML GLXEW_GET_FUN(__glewXGetSyncValuesOML)
+#define glXSwapBuffersMscOML GLXEW_GET_FUN(__glewXSwapBuffersMscOML)
+#define glXWaitForMscOML GLXEW_GET_FUN(__glewXWaitForMscOML)
+#define glXWaitForSbcOML GLXEW_GET_FUN(__glewXWaitForSbcOML)
+
+#define GLXEW_OML_sync_control GLXEW_GET_VAR(__GLXEW_OML_sync_control)
+
+#endif /* GLX_OML_sync_control */
+
+/* ------------------------ GLX_SGIS_blended_overlay ----------------------- */
+
+#ifndef GLX_SGIS_blended_overlay
+#define GLX_SGIS_blended_overlay 1
+
+#define GLX_BLENDED_RGBA_SGIS 0x8025
+
+#define GLXEW_SGIS_blended_overlay GLXEW_GET_VAR(__GLXEW_SGIS_blended_overlay)
+
+#endif /* GLX_SGIS_blended_overlay */
+
+/* -------------------------- GLX_SGIS_color_range ------------------------- */
+
+#ifndef GLX_SGIS_color_range
+#define GLX_SGIS_color_range 1
+
+#define GLX_MIN_RED_SGIS 0
+#define GLX_MAX_GREEN_SGIS 0
+#define GLX_MIN_BLUE_SGIS 0
+#define GLX_MAX_ALPHA_SGIS 0
+#define GLX_MIN_GREEN_SGIS 0
+#define GLX_MIN_ALPHA_SGIS 0
+#define GLX_MAX_RED_SGIS 0
+#define GLX_EXTENDED_RANGE_SGIS 0
+#define GLX_MAX_BLUE_SGIS 0
+
+#define GLXEW_SGIS_color_range GLXEW_GET_VAR(__GLXEW_SGIS_color_range)
+
+#endif /* GLX_SGIS_color_range */
+
+/* -------------------------- GLX_SGIS_multisample ------------------------- */
+
+#ifndef GLX_SGIS_multisample
+#define GLX_SGIS_multisample 1
+
+#define GLX_SAMPLE_BUFFERS_SGIS 100000
+#define GLX_SAMPLES_SGIS 100001
+
+#define GLXEW_SGIS_multisample GLXEW_GET_VAR(__GLXEW_SGIS_multisample)
+
+#endif /* GLX_SGIS_multisample */
+
+/* ---------------------- GLX_SGIS_shared_multisample ---------------------- */
+
+#ifndef GLX_SGIS_shared_multisample
+#define GLX_SGIS_shared_multisample 1
+
+#define GLX_MULTISAMPLE_SUB_RECT_WIDTH_SGIS 0x8026
+#define GLX_MULTISAMPLE_SUB_RECT_HEIGHT_SGIS 0x8027
+
+#define GLXEW_SGIS_shared_multisample GLXEW_GET_VAR(__GLXEW_SGIS_shared_multisample)
+
+#endif /* GLX_SGIS_shared_multisample */
+
+/* --------------------------- GLX_SGIX_fbconfig --------------------------- */
+
+#ifndef GLX_SGIX_fbconfig
+#define GLX_SGIX_fbconfig 1
+
+#define GLX_WINDOW_BIT_SGIX 0x00000001
+#define GLX_RGBA_BIT_SGIX 0x00000001
+#define GLX_PIXMAP_BIT_SGIX 0x00000002
+#define GLX_COLOR_INDEX_BIT_SGIX 0x00000002
+#define GLX_SCREEN_EXT 0x800C
+#define GLX_DRAWABLE_TYPE_SGIX 0x8010
+#define GLX_RENDER_TYPE_SGIX 0x8011
+#define GLX_X_RENDERABLE_SGIX 0x8012
+#define GLX_FBCONFIG_ID_SGIX 0x8013
+#define GLX_RGBA_TYPE_SGIX 0x8014
+#define GLX_COLOR_INDEX_TYPE_SGIX 0x8015
+
+typedef XID GLXFBConfigIDSGIX;
+typedef struct __GLXFBConfigRec *GLXFBConfigSGIX;
+
+typedef GLXFBConfigSGIX* ( * PFNGLXCHOOSEFBCONFIGSGIXPROC) (Display *dpy, int screen, const int *attrib_list, int *nelements);
+typedef GLXContext ( * PFNGLXCREATECONTEXTWITHCONFIGSGIXPROC) (Display* dpy, GLXFBConfig config, int render_type, GLXContext share_list, Bool direct);
+typedef GLXPixmap ( * PFNGLXCREATEGLXPIXMAPWITHCONFIGSGIXPROC) (Display* dpy, GLXFBConfig config, Pixmap pixmap);
+typedef int ( * PFNGLXGETFBCONFIGATTRIBSGIXPROC) (Display* dpy, GLXFBConfigSGIX config, int attribute, int *value);
+typedef GLXFBConfigSGIX ( * PFNGLXGETFBCONFIGFROMVISUALSGIXPROC) (Display* dpy, XVisualInfo *vis);
+typedef XVisualInfo* ( * PFNGLXGETVISUALFROMFBCONFIGSGIXPROC) (Display *dpy, GLXFBConfig config);
+
+#define glXChooseFBConfigSGIX GLXEW_GET_FUN(__glewXChooseFBConfigSGIX)
+#define glXCreateContextWithConfigSGIX GLXEW_GET_FUN(__glewXCreateContextWithConfigSGIX)
+#define glXCreateGLXPixmapWithConfigSGIX GLXEW_GET_FUN(__glewXCreateGLXPixmapWithConfigSGIX)
+#define glXGetFBConfigAttribSGIX GLXEW_GET_FUN(__glewXGetFBConfigAttribSGIX)
+#define glXGetFBConfigFromVisualSGIX GLXEW_GET_FUN(__glewXGetFBConfigFromVisualSGIX)
+#define glXGetVisualFromFBConfigSGIX GLXEW_GET_FUN(__glewXGetVisualFromFBConfigSGIX)
+
+#define GLXEW_SGIX_fbconfig GLXEW_GET_VAR(__GLXEW_SGIX_fbconfig)
+
+#endif /* GLX_SGIX_fbconfig */
+
+/* ---------------------------- GLX_SGIX_pbuffer --------------------------- */
+
+#ifndef GLX_SGIX_pbuffer
+#define GLX_SGIX_pbuffer 1
+
+#define GLX_FRONT_LEFT_BUFFER_BIT_SGIX 0x00000001
+#define GLX_FRONT_RIGHT_BUFFER_BIT_SGIX 0x00000002
+#define GLX_PBUFFER_BIT_SGIX 0x00000004
+#define GLX_BACK_LEFT_BUFFER_BIT_SGIX 0x00000004
+#define GLX_BACK_RIGHT_BUFFER_BIT_SGIX 0x00000008
+#define GLX_AUX_BUFFERS_BIT_SGIX 0x00000010
+#define GLX_DEPTH_BUFFER_BIT_SGIX 0x00000020
+#define GLX_STENCIL_BUFFER_BIT_SGIX 0x00000040
+#define GLX_ACCUM_BUFFER_BIT_SGIX 0x00000080
+#define GLX_SAMPLE_BUFFERS_BIT_SGIX 0x00000100
+#define GLX_MAX_PBUFFER_WIDTH_SGIX 0x8016
+#define GLX_MAX_PBUFFER_HEIGHT_SGIX 0x8017
+#define GLX_MAX_PBUFFER_PIXELS_SGIX 0x8018
+#define GLX_OPTIMAL_PBUFFER_WIDTH_SGIX 0x8019
+#define GLX_OPTIMAL_PBUFFER_HEIGHT_SGIX 0x801A
+#define GLX_PRESERVED_CONTENTS_SGIX 0x801B
+#define GLX_LARGEST_PBUFFER_SGIX 0x801C
+#define GLX_WIDTH_SGIX 0x801D
+#define GLX_HEIGHT_SGIX 0x801E
+#define GLX_EVENT_MASK_SGIX 0x801F
+#define GLX_DAMAGED_SGIX 0x8020
+#define GLX_SAVED_SGIX 0x8021
+#define GLX_WINDOW_SGIX 0x8022
+#define GLX_PBUFFER_SGIX 0x8023
+#define GLX_BUFFER_CLOBBER_MASK_SGIX 0x08000000
+
+typedef XID GLXPbufferSGIX;
+typedef struct { int type; unsigned long serial; Bool send_event; Display *display; GLXDrawable drawable; int event_type; int draw_type; unsigned int mask; int x, y; int width, height; int count; } GLXBufferClobberEventSGIX;
+
+typedef GLXPbuffer ( * PFNGLXCREATEGLXPBUFFERSGIXPROC) (Display* dpy, GLXFBConfig config, unsigned int width, unsigned int height, int *attrib_list);
+typedef void ( * PFNGLXDESTROYGLXPBUFFERSGIXPROC) (Display* dpy, GLXPbuffer pbuf);
+typedef void ( * PFNGLXGETSELECTEDEVENTSGIXPROC) (Display* dpy, GLXDrawable drawable, unsigned long *mask);
+typedef void ( * PFNGLXQUERYGLXPBUFFERSGIXPROC) (Display* dpy, GLXPbuffer pbuf, int attribute, unsigned int *value);
+typedef void ( * PFNGLXSELECTEVENTSGIXPROC) (Display* dpy, GLXDrawable drawable, unsigned long mask);
+
+#define glXCreateGLXPbufferSGIX GLXEW_GET_FUN(__glewXCreateGLXPbufferSGIX)
+#define glXDestroyGLXPbufferSGIX GLXEW_GET_FUN(__glewXDestroyGLXPbufferSGIX)
+#define glXGetSelectedEventSGIX GLXEW_GET_FUN(__glewXGetSelectedEventSGIX)
+#define glXQueryGLXPbufferSGIX GLXEW_GET_FUN(__glewXQueryGLXPbufferSGIX)
+#define glXSelectEventSGIX GLXEW_GET_FUN(__glewXSelectEventSGIX)
+
+#define GLXEW_SGIX_pbuffer GLXEW_GET_VAR(__GLXEW_SGIX_pbuffer)
+
+#endif /* GLX_SGIX_pbuffer */
+
+/* ------------------------- GLX_SGIX_swap_barrier ------------------------- */
+
+#ifndef GLX_SGIX_swap_barrier
+#define GLX_SGIX_swap_barrier 1
+
+typedef void ( * PFNGLXBINDSWAPBARRIERSGIXPROC) (Display *dpy, GLXDrawable drawable, int barrier);
+typedef Bool ( * PFNGLXQUERYMAXSWAPBARRIERSSGIXPROC) (Display *dpy, int screen, int *max);
+
+#define glXBindSwapBarrierSGIX GLXEW_GET_FUN(__glewXBindSwapBarrierSGIX)
+#define glXQueryMaxSwapBarriersSGIX GLXEW_GET_FUN(__glewXQueryMaxSwapBarriersSGIX)
+
+#define GLXEW_SGIX_swap_barrier GLXEW_GET_VAR(__GLXEW_SGIX_swap_barrier)
+
+#endif /* GLX_SGIX_swap_barrier */
+
+/* -------------------------- GLX_SGIX_swap_group -------------------------- */
+
+#ifndef GLX_SGIX_swap_group
+#define GLX_SGIX_swap_group 1
+
+typedef void ( * PFNGLXJOINSWAPGROUPSGIXPROC) (Display *dpy, GLXDrawable drawable, GLXDrawable member);
+
+#define glXJoinSwapGroupSGIX GLXEW_GET_FUN(__glewXJoinSwapGroupSGIX)
+
+#define GLXEW_SGIX_swap_group GLXEW_GET_VAR(__GLXEW_SGIX_swap_group)
+
+#endif /* GLX_SGIX_swap_group */
+
+/* ------------------------- GLX_SGIX_video_resize ------------------------- */
+
+#ifndef GLX_SGIX_video_resize
+#define GLX_SGIX_video_resize 1
+
+#define GLX_SYNC_FRAME_SGIX 0x00000000
+#define GLX_SYNC_SWAP_SGIX 0x00000001
+
+typedef int ( * PFNGLXBINDCHANNELTOWINDOWSGIXPROC) (Display* display, int screen, int channel, Window window);
+typedef int ( * PFNGLXCHANNELRECTSGIXPROC) (Display* display, int screen, int channel, int x, int y, int w, int h);
+typedef int ( * PFNGLXCHANNELRECTSYNCSGIXPROC) (Display* display, int screen, int channel, GLenum synctype);
+typedef int ( * PFNGLXQUERYCHANNELDELTASSGIXPROC) (Display* display, int screen, int channel, int *x, int *y, int *w, int *h);
+typedef int ( * PFNGLXQUERYCHANNELRECTSGIXPROC) (Display* display, int screen, int channel, int *dx, int *dy, int *dw, int *dh);
+
+#define glXBindChannelToWindowSGIX GLXEW_GET_FUN(__glewXBindChannelToWindowSGIX)
+#define glXChannelRectSGIX GLXEW_GET_FUN(__glewXChannelRectSGIX)
+#define glXChannelRectSyncSGIX GLXEW_GET_FUN(__glewXChannelRectSyncSGIX)
+#define glXQueryChannelDeltasSGIX GLXEW_GET_FUN(__glewXQueryChannelDeltasSGIX)
+#define glXQueryChannelRectSGIX GLXEW_GET_FUN(__glewXQueryChannelRectSGIX)
+
+#define GLXEW_SGIX_video_resize GLXEW_GET_VAR(__GLXEW_SGIX_video_resize)
+
+#endif /* GLX_SGIX_video_resize */
+
+/* ---------------------- GLX_SGIX_visual_select_group --------------------- */
+
+#ifndef GLX_SGIX_visual_select_group
+#define GLX_SGIX_visual_select_group 1
+
+#define GLX_VISUAL_SELECT_GROUP_SGIX 0x8028
+
+#define GLXEW_SGIX_visual_select_group GLXEW_GET_VAR(__GLXEW_SGIX_visual_select_group)
+
+#endif /* GLX_SGIX_visual_select_group */
+
+/* ---------------------------- GLX_SGI_cushion ---------------------------- */
+
+#ifndef GLX_SGI_cushion
+#define GLX_SGI_cushion 1
+
+typedef void ( * PFNGLXCUSHIONSGIPROC) (Display* dpy, Window window, float cushion);
+
+#define glXCushionSGI GLXEW_GET_FUN(__glewXCushionSGI)
+
+#define GLXEW_SGI_cushion GLXEW_GET_VAR(__GLXEW_SGI_cushion)
+
+#endif /* GLX_SGI_cushion */
+
+/* ----------------------- GLX_SGI_make_current_read ----------------------- */
+
+#ifndef GLX_SGI_make_current_read
+#define GLX_SGI_make_current_read 1
+
+typedef GLXDrawable ( * PFNGLXGETCURRENTREADDRAWABLESGIPROC) (void);
+typedef Bool ( * PFNGLXMAKECURRENTREADSGIPROC) (Display* dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx);
+
+#define glXGetCurrentReadDrawableSGI GLXEW_GET_FUN(__glewXGetCurrentReadDrawableSGI)
+#define glXMakeCurrentReadSGI GLXEW_GET_FUN(__glewXMakeCurrentReadSGI)
+
+#define GLXEW_SGI_make_current_read GLXEW_GET_VAR(__GLXEW_SGI_make_current_read)
+
+#endif /* GLX_SGI_make_current_read */
+
+/* -------------------------- GLX_SGI_swap_control ------------------------- */
+
+#ifndef GLX_SGI_swap_control
+#define GLX_SGI_swap_control 1
+
+typedef int ( * PFNGLXSWAPINTERVALSGIPROC) (int interval);
+
+#define glXSwapIntervalSGI GLXEW_GET_FUN(__glewXSwapIntervalSGI)
+
+#define GLXEW_SGI_swap_control GLXEW_GET_VAR(__GLXEW_SGI_swap_control)
+
+#endif /* GLX_SGI_swap_control */
+
+/* --------------------------- GLX_SGI_video_sync -------------------------- */
+
+#ifndef GLX_SGI_video_sync
+#define GLX_SGI_video_sync 1
+
+typedef int ( * PFNGLXGETVIDEOSYNCSGIPROC) (uint* count);
+typedef int ( * PFNGLXWAITVIDEOSYNCSGIPROC) (int divisor, int remainder, unsigned int* count);
+
+#define glXGetVideoSyncSGI GLXEW_GET_FUN(__glewXGetVideoSyncSGI)
+#define glXWaitVideoSyncSGI GLXEW_GET_FUN(__glewXWaitVideoSyncSGI)
+
+#define GLXEW_SGI_video_sync GLXEW_GET_VAR(__GLXEW_SGI_video_sync)
+
+#endif /* GLX_SGI_video_sync */
+
+/* --------------------- GLX_SUN_get_transparent_index --------------------- */
+
+#ifndef GLX_SUN_get_transparent_index
+#define GLX_SUN_get_transparent_index 1
+
+typedef Status ( * PFNGLXGETTRANSPARENTINDEXSUNPROC) (Display* dpy, Window overlay, Window underlay, unsigned long *pTransparentIndex);
+
+#define glXGetTransparentIndexSUN GLXEW_GET_FUN(__glewXGetTransparentIndexSUN)
+
+#define GLXEW_SUN_get_transparent_index GLXEW_GET_VAR(__GLXEW_SUN_get_transparent_index)
+
+#endif /* GLX_SUN_get_transparent_index */
+
+/* -------------------------- GLX_SUN_video_resize ------------------------- */
+
+#ifndef GLX_SUN_video_resize
+#define GLX_SUN_video_resize 1
+
+#define GLX_VIDEO_RESIZE_SUN 0x8171
+#define GL_VIDEO_RESIZE_COMPENSATION_SUN 0x85CD
+
+typedef int ( * PFNGLXGETVIDEORESIZESUNPROC) (Display* display, GLXDrawable window, float* factor);
+typedef int ( * PFNGLXVIDEORESIZESUNPROC) (Display* display, GLXDrawable window, float factor);
+
+#define glXGetVideoResizeSUN GLXEW_GET_FUN(__glewXGetVideoResizeSUN)
+#define glXVideoResizeSUN GLXEW_GET_FUN(__glewXVideoResizeSUN)
+
+#define GLXEW_SUN_video_resize GLXEW_GET_VAR(__GLXEW_SUN_video_resize)
+
+#endif /* GLX_SUN_video_resize */
+
+/* ------------------------------------------------------------------------- */
+
+#ifdef GLEW_MX
+#define GLXEW_EXPORT
+#else
+#define GLXEW_EXPORT extern
+#endif /* GLEW_MX */
+
+extern PFNGLXGETCURRENTDISPLAYPROC __glewXGetCurrentDisplay;
+
+extern PFNGLXCHOOSEFBCONFIGPROC __glewXChooseFBConfig;
+extern PFNGLXCREATENEWCONTEXTPROC __glewXCreateNewContext;
+extern PFNGLXCREATEPBUFFERPROC __glewXCreatePbuffer;
+extern PFNGLXCREATEPIXMAPPROC __glewXCreatePixmap;
+extern PFNGLXCREATEWINDOWPROC __glewXCreateWindow;
+extern PFNGLXDESTROYPBUFFERPROC __glewXDestroyPbuffer;
+extern PFNGLXDESTROYPIXMAPPROC __glewXDestroyPixmap;
+extern PFNGLXDESTROYWINDOWPROC __glewXDestroyWindow;
+extern PFNGLXGETCURRENTREADDRAWABLEPROC __glewXGetCurrentReadDrawable;
+extern PFNGLXGETFBCONFIGATTRIBPROC __glewXGetFBConfigAttrib;
+extern PFNGLXGETFBCONFIGSPROC __glewXGetFBConfigs;
+extern PFNGLXGETSELECTEDEVENTPROC __glewXGetSelectedEvent;
+extern PFNGLXGETVISUALFROMFBCONFIGPROC __glewXGetVisualFromFBConfig;
+extern PFNGLXMAKECONTEXTCURRENTPROC __glewXMakeContextCurrent;
+extern PFNGLXQUERYCONTEXTPROC __glewXQueryContext;
+extern PFNGLXQUERYDRAWABLEPROC __glewXQueryDrawable;
+extern PFNGLXSELECTEVENTPROC __glewXSelectEvent;
+
+extern PFNGLXBINDTEXIMAGEATIPROC __glewXBindTexImageATI;
+extern PFNGLXDRAWABLEATTRIBATIPROC __glewXDrawableAttribATI;
+extern PFNGLXRELEASETEXIMAGEATIPROC __glewXReleaseTexImageATI;
+
+extern PFNGLXFREECONTEXTEXTPROC __glewXFreeContextEXT;
+extern PFNGLXGETCONTEXTIDEXTPROC __glewXGetContextIDEXT;
+extern PFNGLXIMPORTCONTEXTEXTPROC __glewXImportContextEXT;
+extern PFNGLXQUERYCONTEXTINFOEXTPROC __glewXQueryContextInfoEXT;
+
+extern PFNGLXGETAGPOFFSETMESAPROC __glewXGetAGPOffsetMESA;
+
+extern PFNGLXCOPYSUBBUFFERMESAPROC __glewXCopySubBufferMESA;
+
+extern PFNGLXCREATEGLXPIXMAPMESAPROC __glewXCreateGLXPixmapMESA;
+
+extern PFNGLXRELEASEBUFFERSMESAPROC __glewXReleaseBuffersMESA;
+
+extern PFNGLXSET3DFXMODEMESAPROC __glewXSet3DfxModeMESA;
+
+extern PFNGLXALLOCATEMEMORYNVPROC __glewXAllocateMemoryNV;
+extern PFNGLXFREEMEMORYNVPROC __glewXFreeMemoryNV;
+
+#ifdef GLX_OML_sync_control
+extern PFNGLXGETMSCRATEOMLPROC __glewXGetMscRateOML;
+extern PFNGLXGETSYNCVALUESOMLPROC __glewXGetSyncValuesOML;
+extern PFNGLXSWAPBUFFERSMSCOMLPROC __glewXSwapBuffersMscOML;
+extern PFNGLXWAITFORMSCOMLPROC __glewXWaitForMscOML;
+extern PFNGLXWAITFORSBCOMLPROC __glewXWaitForSbcOML;
+#endif
+
+extern PFNGLXCHOOSEFBCONFIGSGIXPROC __glewXChooseFBConfigSGIX;
+extern PFNGLXCREATECONTEXTWITHCONFIGSGIXPROC __glewXCreateContextWithConfigSGIX;
+extern PFNGLXCREATEGLXPIXMAPWITHCONFIGSGIXPROC __glewXCreateGLXPixmapWithConfigSGIX;
+extern PFNGLXGETFBCONFIGATTRIBSGIXPROC __glewXGetFBConfigAttribSGIX;
+extern PFNGLXGETFBCONFIGFROMVISUALSGIXPROC __glewXGetFBConfigFromVisualSGIX;
+extern PFNGLXGETVISUALFROMFBCONFIGSGIXPROC __glewXGetVisualFromFBConfigSGIX;
+
+extern PFNGLXCREATEGLXPBUFFERSGIXPROC __glewXCreateGLXPbufferSGIX;
+extern PFNGLXDESTROYGLXPBUFFERSGIXPROC __glewXDestroyGLXPbufferSGIX;
+extern PFNGLXGETSELECTEDEVENTSGIXPROC __glewXGetSelectedEventSGIX;
+extern PFNGLXQUERYGLXPBUFFERSGIXPROC __glewXQueryGLXPbufferSGIX;
+extern PFNGLXSELECTEVENTSGIXPROC __glewXSelectEventSGIX;
+
+extern PFNGLXBINDSWAPBARRIERSGIXPROC __glewXBindSwapBarrierSGIX;
+extern PFNGLXQUERYMAXSWAPBARRIERSSGIXPROC __glewXQueryMaxSwapBarriersSGIX;
+
+extern PFNGLXJOINSWAPGROUPSGIXPROC __glewXJoinSwapGroupSGIX;
+
+extern PFNGLXBINDCHANNELTOWINDOWSGIXPROC __glewXBindChannelToWindowSGIX;
+extern PFNGLXCHANNELRECTSGIXPROC __glewXChannelRectSGIX;
+extern PFNGLXCHANNELRECTSYNCSGIXPROC __glewXChannelRectSyncSGIX;
+extern PFNGLXQUERYCHANNELDELTASSGIXPROC __glewXQueryChannelDeltasSGIX;
+extern PFNGLXQUERYCHANNELRECTSGIXPROC __glewXQueryChannelRectSGIX;
+
+extern PFNGLXCUSHIONSGIPROC __glewXCushionSGI;
+
+extern PFNGLXGETCURRENTREADDRAWABLESGIPROC __glewXGetCurrentReadDrawableSGI;
+extern PFNGLXMAKECURRENTREADSGIPROC __glewXMakeCurrentReadSGI;
+
+extern PFNGLXSWAPINTERVALSGIPROC __glewXSwapIntervalSGI;
+
+extern PFNGLXGETVIDEOSYNCSGIPROC __glewXGetVideoSyncSGI;
+extern PFNGLXWAITVIDEOSYNCSGIPROC __glewXWaitVideoSyncSGI;
+
+extern PFNGLXGETTRANSPARENTINDEXSUNPROC __glewXGetTransparentIndexSUN;
+
+extern PFNGLXGETVIDEORESIZESUNPROC __glewXGetVideoResizeSUN;
+extern PFNGLXVIDEORESIZESUNPROC __glewXVideoResizeSUN;
+
+#if defined(GLEW_MX)
+struct GLXEWContextStruct
+{
+#endif /* GLEW_MX */
+
+GLXEW_EXPORT GLboolean __GLXEW_VERSION_1_0;
+GLXEW_EXPORT GLboolean __GLXEW_VERSION_1_1;
+GLXEW_EXPORT GLboolean __GLXEW_VERSION_1_2;
+GLXEW_EXPORT GLboolean __GLXEW_VERSION_1_3;
+GLXEW_EXPORT GLboolean __GLXEW_VERSION_1_4;
+GLXEW_EXPORT GLboolean __GLXEW_3DFX_multisample;
+GLXEW_EXPORT GLboolean __GLXEW_ARB_fbconfig_float;
+GLXEW_EXPORT GLboolean __GLXEW_ARB_get_proc_address;
+GLXEW_EXPORT GLboolean __GLXEW_ARB_multisample;
+GLXEW_EXPORT GLboolean __GLXEW_ATI_pixel_format_float;
+GLXEW_EXPORT GLboolean __GLXEW_ATI_render_texture;
+GLXEW_EXPORT GLboolean __GLXEW_EXT_import_context;
+GLXEW_EXPORT GLboolean __GLXEW_EXT_scene_marker;
+GLXEW_EXPORT GLboolean __GLXEW_EXT_visual_info;
+GLXEW_EXPORT GLboolean __GLXEW_EXT_visual_rating;
+GLXEW_EXPORT GLboolean __GLXEW_MESA_agp_offset;
+GLXEW_EXPORT GLboolean __GLXEW_MESA_copy_sub_buffer;
+GLXEW_EXPORT GLboolean __GLXEW_MESA_pixmap_colormap;
+GLXEW_EXPORT GLboolean __GLXEW_MESA_release_buffers;
+GLXEW_EXPORT GLboolean __GLXEW_MESA_set_3dfx_mode;
+GLXEW_EXPORT GLboolean __GLXEW_NV_float_buffer;
+GLXEW_EXPORT GLboolean __GLXEW_NV_vertex_array_range;
+GLXEW_EXPORT GLboolean __GLXEW_OML_swap_method;
+GLXEW_EXPORT GLboolean __GLXEW_OML_sync_control;
+GLXEW_EXPORT GLboolean __GLXEW_SGIS_blended_overlay;
+GLXEW_EXPORT GLboolean __GLXEW_SGIS_color_range;
+GLXEW_EXPORT GLboolean __GLXEW_SGIS_multisample;
+GLXEW_EXPORT GLboolean __GLXEW_SGIS_shared_multisample;
+GLXEW_EXPORT GLboolean __GLXEW_SGIX_fbconfig;
+GLXEW_EXPORT GLboolean __GLXEW_SGIX_pbuffer;
+GLXEW_EXPORT GLboolean __GLXEW_SGIX_swap_barrier;
+GLXEW_EXPORT GLboolean __GLXEW_SGIX_swap_group;
+GLXEW_EXPORT GLboolean __GLXEW_SGIX_video_resize;
+GLXEW_EXPORT GLboolean __GLXEW_SGIX_visual_select_group;
+GLXEW_EXPORT GLboolean __GLXEW_SGI_cushion;
+GLXEW_EXPORT GLboolean __GLXEW_SGI_make_current_read;
+GLXEW_EXPORT GLboolean __GLXEW_SGI_swap_control;
+GLXEW_EXPORT GLboolean __GLXEW_SGI_video_sync;
+GLXEW_EXPORT GLboolean __GLXEW_SUN_get_transparent_index;
+GLXEW_EXPORT GLboolean __GLXEW_SUN_video_resize;
+
+#ifdef GLEW_MX
+}; /* GLXEWContextStruct */
+#endif /* GLEW_MX */
+
+/* ------------------------------------------------------------------------ */
+
+#ifdef GLEW_MX
+
+typedef struct GLXEWContextStruct GLXEWContext;
+extern GLenum glxewContextInit (GLXEWContext* ctx);
+extern GLboolean glxewContextIsSupported (GLXEWContext* ctx, const char* name);
+
+#define glxewInit() glxewContextInit(glxewGetContext())
+#define glxewIsSupported(x) glxewContextIsSupported(glxewGetContext(), x)
+
+#define GLXEW_GET_VAR(x) glxewGetContext()->x
+#define GLXEW_GET_FUN(x) x
+
+#else /* GLEW_MX */
+
+#define GLXEW_GET_VAR(x) x
+#define GLXEW_GET_FUN(x) x
+
+extern GLboolean glxewIsSupported (const char* name);
+
+#endif /* GLEW_MX */
+
+extern GLboolean glxewGetExtension (const char* name);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __glxew_h__ */