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#ifndef __gl_core_h_

#define __gl_core_h_

/*

 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)

 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Software"),

 * to deal in the Software without restriction, including without limitation

 * the rights to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, subject to the following conditions:

 *

 * The above copyright notice including the dates of first publication and

 * either this permission notice or a reference to

 * http://oss.sgi.com/projects/FreeB/

 * shall be included in all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF

 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

 * SOFTWARE.

 *

 * Except as contained in this notice, the name of Silicon Graphics, Inc.

 * shall not be used in advertising or otherwise to promote the sale, use or

 * other dealings in this Software without prior written authorization from

 * Silicon Graphics, Inc.

 */

#if !defined(_WIN32_WCE)

#include 

#endif

#define GL_CORE_SGI  1

#define GL_CORE_MESA 2

#define GL_CORE_APPLE 4

#define GL_CORE_WINDOWS 8

typedef struct __GLcontextRec __GLcontext;

/*

** This file defines the interface between the GL core and the surrounding

** "operating system" that supports it (currently the GLX or WGL extensions).

**

** Members (data and function pointers) are documented as imported or

** exported according to how they are used by the core rendering functions.

** Imported members are initialized by the "operating system" and used by

** the core functions.  Exported members are initialized by the core functions

** and used by the "operating system".

*/

/**

 * Mode and limit information for a context.  This information is

 * kept around in the context so that values can be used during

 * command execution, and for returning information about the

 * context to the application.

 *

 * Instances of this structure are shared by the driver and the loader.  To

 * maintain binary compatability, new fields \b must be added only to the

 * end of the structure.

 *

 * \sa _gl_context_modes_create

 */

typedef struct __GLcontextModesRec {

    struct __GLcontextModesRec * next;

    GLboolean rgbMode;

    GLboolean floatMode;

    GLboolean colorIndexMode;

    GLuint doubleBufferMode;

    GLuint stereoMode;

    GLboolean haveAccumBuffer;

    GLboolean haveDepthBuffer;

    GLboolean haveStencilBuffer;

    GLint redBits, greenBits, blueBits, alphaBits;	/* bits per comp */

    GLuint redMask, greenMask, blueMask, alphaMask;

    GLint rgbBits;		/* total bits for rgb */

    GLint indexBits;		/* total bits for colorindex */

    GLint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits;

    GLint depthBits;

    GLint stencilBits;

    GLint numAuxBuffers;

    GLint level;

    GLint pixmapMode;

    /* GLX */

    GLint visualID;

    GLint visualType;     /**< One of the GLX X visual types. (i.e.,

			   * \c GLX_TRUE_COLOR, etc.)

			   */

    /* EXT_visual_rating / GLX 1.2 */

    GLint visualRating;

    /* EXT_visual_info / GLX 1.2 */

    GLint transparentPixel;

				/*    colors are floats scaled to ints */

    GLint transparentRed, transparentGreen, transparentBlue, transparentAlpha;

    GLint transparentIndex;

    /* ARB_multisample / SGIS_multisample */

    GLint sampleBuffers;

    GLint samples;

    /* SGIX_fbconfig / GLX 1.3 */

    GLint drawableType;

    GLint renderType;

    GLint xRenderable;

    GLint fbconfigID;

    /* SGIX_pbuffer / GLX 1.3 */

    GLint maxPbufferWidth;

    GLint maxPbufferHeight;

    GLint maxPbufferPixels;

    GLint optimalPbufferWidth;   /* Only for SGIX_pbuffer. */

    GLint optimalPbufferHeight;  /* Only for SGIX_pbuffer. */

    /* SGIX_visual_select_group */

    GLint visualSelectGroup;

    /* OML_swap_method */

    GLint swapMethod;

    GLint screen;

    /* EXT_texture_from_pixmap */

    GLint bindToTextureRgb;

    GLint bindToTextureRgba;

    GLint bindToMipmapTexture;

    GLint bindToTextureTargets;

    GLint yInverted;

} __GLcontextModes;

/* Several fields of __GLcontextModes can take these as values.  Since

 * GLX header files may not be available everywhere they need to be used,

 * redefine them here.

 */

#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_NON_CONFORMANT_CONFIG          0x800D

#define GLX_SWAP_EXCHANGE_OML              0x8061

#define GLX_SWAP_COPY_OML                  0x8062

#define GLX_SWAP_UNDEFINED_OML             0x8063

#define GLX_DONT_CARE                      0xFFFFFFFF

#define GLX_RGBA_BIT                       0x00000001

#define GLX_COLOR_INDEX_BIT                0x00000002

#define GLX_WINDOW_BIT                     0x00000001

#define GLX_PIXMAP_BIT                     0x00000002

#define GLX_PBUFFER_BIT                    0x00000004

#define GLX_BIND_TO_TEXTURE_RGB_EXT        0x20D0

#define GLX_BIND_TO_TEXTURE_RGBA_EXT       0x20D1

#define GLX_BIND_TO_MIPMAP_TEXTURE_EXT     0x20D2

#define GLX_BIND_TO_TEXTURE_TARGETS_EXT    0x20D3

#define GLX_Y_INVERTED_EXT                 0x20D4

#define GLX_TEXTURE_1D_BIT_EXT             0x00000001

#define GLX_TEXTURE_2D_BIT_EXT             0x00000002

#define GLX_TEXTURE_RECTANGLE_BIT_EXT      0x00000004

#endif /* __gl_core_h_ */