#ifndef __wglext_h_
#define __wglext_h_

#ifdef __cplusplus
extern "C" {
#endif

/*
** License Applicability. Except to the extent portions of this file are
** made subject to an alternative license as permitted in the SGI Free
** Software License B, Version 1.1 (the "License"), the contents of this
** file are subject only to the provisions of 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, 1600
** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
** 
** http://oss.sgi.com/projects/FreeB
** 
** Note that, as provided in the License, the Software is distributed on an
** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
** 
** Original Code. The Original Code is: OpenGL Sample Implementation,
** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
** Copyright in any portions created by third parties is as indicated
** elsewhere herein. All Rights Reserved.
** 
** Additional Notice Provisions: This software was created using the
** OpenGL(R) version 1.2.1 Sample Implementation published by SGI, but has
** not been independently verified as being compliant with the OpenGL(R)
** version 1.2.1 Specification.
*/

#if defined(_WIN32) && !defined(APIENTRY) && !defined(__CYGWIN__)
#define WIN32_LEAN_AND_MEAN 1
#include <windows.h>
#endif

#ifndef APIENTRY
#define APIENTRY
#endif

/*************************************************************/

/* Header file version number */
#define WGL_WGLEXT_VERSION 1

#ifndef WGL_ARB_buffer_region
#define WGL_FRONT_COLOR_BUFFER_BIT_ARB 0x00000001
#define WGL_BACK_COLOR_BUFFER_BIT_ARB  0x00000002
#define WGL_DEPTH_BUFFER_BIT_ARB       0x00000004
#define WGL_STENCIL_BUFFER_BIT_ARB     0x00000008
#endif

#ifndef WGL_ARB_extensions_string
#endif

#ifndef WGL_ARB_pixel_format
#define WGL_NUMBER_PIXEL_FORMATS_ARB   0x2000
#define WGL_DRAW_TO_WINDOW_ARB         0x2001
#define WGL_DRAW_TO_BITMAP_ARB         0x2002
#define WGL_ACCELERATION_ARB           0x2003
#define WGL_NEED_PALETTE_ARB           0x2004
#define WGL_NEED_SYSTEM_PALETTE_ARB    0x2005
#define WGL_SWAP_LAYER_BUFFERS_ARB     0x2006
#define WGL_SWAP_METHOD_ARB            0x2007
#define WGL_NUMBER_OVERLAYS_ARB        0x2008
#define WGL_NUMBER_UNDERLAYS_ARB       0x2009
#define WGL_TRANSPARENT_ARB            0x200A
#define WGL_TRANSPARENT_RED_VALUE_ARB  0x2037
#define WGL_TRANSPARENT_GREEN_VALUE_ARB 0x2038
#define WGL_TRANSPARENT_BLUE_VALUE_ARB 0x2039
#define WGL_TRANSPARENT_ALPHA_VALUE_ARB 0x203A
#define WGL_TRANSPARENT_INDEX_VALUE_ARB 0x203B
#define WGL_SHARE_DEPTH_ARB            0x200C
#define WGL_SHARE_STENCIL_ARB          0x200D
#define WGL_SHARE_ACCUM_ARB            0x200E
#define WGL_SUPPORT_GDI_ARB            0x200F
#define WGL_SUPPORT_OPENGL_ARB         0x2010
#define WGL_DOUBLE_BUFFER_ARB          0x2011
#define WGL_STEREO_ARB                 0x2012
#define WGL_PIXEL_TYPE_ARB             0x2013
#define WGL_COLOR_BITS_ARB             0x2014
#define WGL_RED_BITS_ARB               0x2015
#define WGL_RED_SHIFT_ARB              0x2016
#define WGL_GREEN_BITS_ARB             0x2017
#define WGL_GREEN_SHIFT_ARB            0x2018
#define WGL_BLUE_BITS_ARB              0x2019
#define WGL_BLUE_SHIFT_ARB             0x201A
#define WGL_ALPHA_BITS_ARB             0x201B
#define WGL_ALPHA_SHIFT_ARB            0x201C
#define WGL_ACCUM_BITS_ARB             0x201D
#define WGL_ACCUM_RED_BITS_ARB         0x201E
#define WGL_ACCUM_GREEN_BITS_ARB       0x201F
#define WGL_ACCUM_BLUE_BITS_ARB        0x2020
#define WGL_ACCUM_ALPHA_BITS_ARB       0x2021
#define WGL_DEPTH_BITS_ARB             0x2022
#define WGL_STENCIL_BITS_ARB           0x2023
#define WGL_AUX_BUFFERS_ARB            0x2024
#define WGL_NO_ACCELERATION_ARB        0x2025
#define WGL_GENERIC_ACCELERATION_ARB   0x2026
#define WGL_FULL_ACCELERATION_ARB      0x2027
#define WGL_SWAP_EXCHANGE_ARB          0x2028
#define WGL_SWAP_COPY_ARB              0x2029
#define WGL_SWAP_UNDEFINED_ARB         0x202A
#define WGL_TYPE_RGBA_ARB              0x202B
#define WGL_TYPE_COLORINDEX_ARB        0x202C
#endif

#ifndef WGL_ARB_make_current_read
#define ERROR_INVALID_PIXEL_TYPE_ARB   0x2043
#define ERROR_INCOMPATIBLE_DEVICE_CONTEXTS_ARB 0x2054
#endif

#ifndef WGL_ARB_pbuffer
#define WGL_DRAW_TO_PBUFFER_ARB        0x202D
#define WGL_MAX_PBUFFER_PIXELS_ARB     0x202E
#define WGL_MAX_PBUFFER_WIDTH_ARB      0x202F
#define WGL_MAX_PBUFFER_HEIGHT_ARB     0x2030
#define WGL_PBUFFER_LARGEST_ARB        0x2033
#define WGL_PBUFFER_WIDTH_ARB          0x2034
#define WGL_PBUFFER_HEIGHT_ARB         0x2035
#define WGL_PBUFFER_LOST_ARB           0x2036
#endif

#ifndef WGL_ATI_pixel_format_float
#define WGL_RGBA_FLOAT_MODE_ATI             0x8820
#define WGL_COLOR_CLEAR_UNCLAMPED_VALUE_ATI 0x8835
#define WGL_TYPE_RGBA_FLOAT_ATI             0x21A0
#endif

#ifndef WGL_EXT_make_current_read
#define ERROR_INVALID_PIXEL_TYPE_EXT   0x2043
#endif

#ifndef WGL_EXT_pixel_format
#define WGL_NUMBER_PIXEL_FORMATS_EXT   0x2000
#define WGL_DRAW_TO_WINDOW_EXT         0x2001
#define WGL_DRAW_TO_BITMAP_EXT         0x2002
#define WGL_ACCELERATION_EXT           0x2003
#define WGL_NEED_PALETTE_EXT           0x2004
#define WGL_NEED_SYSTEM_PALETTE_EXT    0x2005
#define WGL_SWAP_LAYER_BUFFERS_EXT     0x2006
#define WGL_SWAP_METHOD_EXT            0x2007
#define WGL_NUMBER_OVERLAYS_EXT        0x2008
#define WGL_NUMBER_UNDERLAYS_EXT       0x2009
#define WGL_TRANSPARENT_EXT            0x200A
#define WGL_TRANSPARENT_VALUE_EXT      0x200B
#define WGL_SHARE_DEPTH_EXT            0x200C
#define WGL_SHARE_STENCIL_EXT          0x200D
#define WGL_SHARE_ACCUM_EXT            0x200E
#define WGL_SUPPORT_GDI_EXT            0x200F
#define WGL_SUPPORT_OPENGL_EXT         0x2010
#define WGL_DOUBLE_BUFFER_EXT          0x2011
#define WGL_STEREO_EXT                 0x2012
#define WGL_PIXEL_TYPE_EXT             0x2013
#define WGL_COLOR_BITS_EXT             0x2014
#define WGL_RED_BITS_EXT               0x2015
#define WGL_RED_SHIFT_EXT              0x2016
#define WGL_GREEN_BITS_EXT             0x2017
#define WGL_GREEN_SHIFT_EXT            0x2018
#define WGL_BLUE_BITS_EXT              0x2019
#define WGL_BLUE_SHIFT_EXT             0x201A
#define WGL_ALPHA_BITS_EXT             0x201B
#define WGL_ALPHA_SHIFT_EXT            0x201C
#define WGL_ACCUM_BITS_EXT             0x201D
#define WGL_ACCUM_RED_BITS_EXT         0x201E
#define WGL_ACCUM_GREEN_BITS_EXT       0x201F
#define WGL_ACCUM_BLUE_BITS_EXT        0x2020
#define WGL_ACCUM_ALPHA_BITS_EXT       0x2021
#define WGL_DEPTH_BITS_EXT             0x2022
#define WGL_STENCIL_BITS_EXT           0x2023
#define WGL_AUX_BUFFERS_EXT            0x2024
#define WGL_NO_ACCELERATION_EXT        0x2025
#define WGL_GENERIC_ACCELERATION_EXT   0x2026
#define WGL_FULL_ACCELERATION_EXT      0x2027
#define WGL_SWAP_EXCHANGE_EXT          0x2028
#define WGL_SWAP_COPY_EXT              0x2029
#define WGL_SWAP_UNDEFINED_EXT         0x202A
#define WGL_TYPE_RGBA_EXT              0x202B
#define WGL_TYPE_COLORINDEX_EXT        0x202C
#endif

#ifndef WGL_EXT_pbuffer
#define WGL_DRAW_TO_PBUFFER_EXT        0x202D
#define WGL_MAX_PBUFFER_PIXELS_EXT     0x202E
#define WGL_MAX_PBUFFER_WIDTH_EXT      0x202F
#define WGL_MAX_PBUFFER_HEIGHT_EXT     0x2030
#define WGL_OPTIMAL_PBUFFER_WIDTH_EXT  0x2031
#define WGL_OPTIMAL_PBUFFER_HEIGHT_EXT 0x2032
#define WGL_PBUFFER_LARGEST_EXT        0x2033
#define WGL_PBUFFER_WIDTH_EXT          0x2034
#define WGL_PBUFFER_HEIGHT_EXT         0x2035
#endif

#ifndef WGL_ARB_render_texture
#define WGL_BIND_TO_TEXTURE_RGB_ARB        0x2070
#define WGL_BIND_TO_TEXTURE_RGBA_ARB       0x2071
#define WGL_TEXTURE_FORMAT_ARB             0x2072
#define WGL_TEXTURE_TARGET_ARB             0x2073
#define WGL_MIPMAP_TEXTURE_ARB             0x2074
#define WGL_TEXTURE_RGB_ARB                0x2075
#define WGL_TEXTURE_RGBA_ARB               0x2076
#define WGL_NO_TEXTURE_ARB                 0x2077
#define WGL_TEXTURE_CUBE_MAP_ARB           0x2078
#define WGL_TEXTURE_1D_ARB                 0x2079
#define WGL_TEXTURE_2D_ARB                 0x207A
#define WGL_MIPMAP_LEVEL_ARB               0x207B
#define WGL_CUBE_MAP_FACE_ARB              0x207C
#define WGL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB 0x207D
#define WGL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB 0x207E
#define WGL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB 0x207F
#define WGL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB 0x2080
#define WGL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB 0x2081
#define WGL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB 0x2082
#define WGL_FRONT_LEFT_ARB                 0x2083
#define WGL_FRONT_RIGHT_ARB                0x2084
#define WGL_BACK_LEFT_ARB                  0x2085
#define WGL_BACK_RIGHT_ARB                 0x2086
#define WGL_AUX0_ARB                       0x2087
#define WGL_AUX1_ARB                       0x2088
#define WGL_AUX2_ARB                       0x2089
#define WGL_AUX3_ARB                       0x208A
#define WGL_AUX4_ARB                       0x208B
#define WGL_AUX5_ARB                       0x208C
#define WGL_AUX6_ARB                       0x208D
#define WGL_AUX7_ARB                       0x208E
#define WGL_AUX8_ARB                       0x208F
#define WGL_AUX9_ARB                       0x2090
#endif

#ifndef WGL_EXT_depth_float
#define WGL_DEPTH_FLOAT_EXT                0x2040
#endif

#ifndef WGL_NV_float_buffer
#define WGL_FLOAT_COMPONENTS_NV                     0x20B0
#define WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_R_NV    0x20B1
#define WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RG_NV   0x20B2
#define WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGB_NV  0x20B3
#define WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGBA_NV 0x20B4

#define WGL_TEXTURE_FLOAT_R_NV                      0x20B5
#define WGL_TEXTURE_FLOAT_RG_NV                     0x20B6
#define WGL_TEXTURE_FLOAT_RGB_NV                    0x20B7