184 lines
6.4 KiB
C
184 lines
6.4 KiB
C
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#ifndef __gl_core_h_
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#define __gl_core_h_
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/*
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** License Applicability. Except to the extent portions of this file are
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** made subject to an alternative license as permitted in the SGI Free
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** Software License B, Version 1.1 (the "License"), the contents of this
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** file are subject only to the provisions of the License. You may not use
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** this file except in compliance with the License. You may obtain a copy
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** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
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** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
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**
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** http://oss.sgi.com/projects/FreeB
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**
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** Note that, as provided in the License, the Software is distributed on an
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** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
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** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
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** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
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** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
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**
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** Original Code. The Original Code is: OpenGL Sample Implementation,
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** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
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** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
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** Copyright in any portions created by third parties is as indicated
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** elsewhere herein. All Rights Reserved.
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**
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** Additional Notice Provisions: The application programming interfaces
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** established by SGI in conjunction with the Original Code are The
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** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
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** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
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** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
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** Window System(R) (Version 1.3), released October 19, 1998. This software
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** was created using the OpenGL(R) version 1.2.1 Sample Implementation
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** published by SGI, but has not been independently verified as being
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** compliant with the OpenGL(R) version 1.2.1 Specification.
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**
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*/
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#include <sys/types.h>
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#define GL_CORE_SGI 1
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#define GL_CORE_MESA 2
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#define GL_CORE_APPLE 4
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typedef struct __GLcontextRec __GLcontext;
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/*
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** This file defines the interface between the GL core and the surrounding
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** "operating system" that supports it (currently the GLX or WGL extensions).
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**
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** Members (data and function pointers) are documented as imported or
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** exported according to how they are used by the core rendering functions.
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** Imported members are initialized by the "operating system" and used by
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** the core functions. Exported members are initialized by the core functions
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** and used by the "operating system".
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*/
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/**
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* Mode and limit information for a context. This information is
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* kept around in the context so that values can be used during
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* command execution, and for returning information about the
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* context to the application.
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*
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* Instances of this structure are shared by the driver and the loader. To
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* maintain binary compatability, new fields \b must be added only to the
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* end of the structure.
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*
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* \sa _gl_context_modes_create
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*/
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typedef struct __GLcontextModesRec {
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struct __GLcontextModesRec * next;
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GLboolean rgbMode;
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GLboolean floatMode;
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GLboolean colorIndexMode;
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GLuint doubleBufferMode;
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GLuint stereoMode;
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GLboolean haveAccumBuffer;
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GLboolean haveDepthBuffer;
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GLboolean haveStencilBuffer;
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GLint redBits, greenBits, blueBits, alphaBits; /* bits per comp */
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GLuint redMask, greenMask, blueMask, alphaMask;
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GLint rgbBits; /* total bits for rgb */
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GLint indexBits; /* total bits for colorindex */
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GLint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits;
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GLint depthBits;
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GLint stencilBits;
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GLint numAuxBuffers;
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GLint level;
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GLint pixmapMode;
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/* GLX */
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GLint visualID;
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GLint visualType; /**< One of the GLX X visual types. (i.e.,
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* \c GLX_TRUE_COLOR, etc.)
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*/
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/* EXT_visual_rating / GLX 1.2 */
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GLint visualRating;
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/* EXT_visual_info / GLX 1.2 */
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GLint transparentPixel;
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/* colors are floats scaled to ints */
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GLint transparentRed, transparentGreen, transparentBlue, transparentAlpha;
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GLint transparentIndex;
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/* ARB_multisample / SGIS_multisample */
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GLint sampleBuffers;
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GLint samples;
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/* SGIX_fbconfig / GLX 1.3 */
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GLint drawableType;
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GLint renderType;
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GLint xRenderable;
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GLint fbconfigID;
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/* SGIX_pbuffer / GLX 1.3 */
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GLint maxPbufferWidth;
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GLint maxPbufferHeight;
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GLint maxPbufferPixels;
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GLint optimalPbufferWidth; /* Only for SGIX_pbuffer. */
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GLint optimalPbufferHeight; /* Only for SGIX_pbuffer. */
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/* SGIX_visual_select_group */
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GLint visualSelectGroup;
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/* OML_swap_method */
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GLint swapMethod;
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GLint screen;
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/* EXT_texture_from_pixmap */
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GLint bindToTextureRgb;
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GLint bindToTextureRgba;
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GLint bindToMipmapTexture;
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GLint bindToTextureTargets;
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GLint yInverted;
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} __GLcontextModes;
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/* Several fields of __GLcontextModes can take these as values. Since
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* GLX header files may not be available everywhere they need to be used,
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* redefine them here.
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*/
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#define GLX_NONE 0x8000
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#define GLX_SLOW_CONFIG 0x8001
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#define GLX_TRUE_COLOR 0x8002
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#define GLX_DIRECT_COLOR 0x8003
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#define GLX_PSEUDO_COLOR 0x8004
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#define GLX_STATIC_COLOR 0x8005
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#define GLX_GRAY_SCALE 0x8006
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#define GLX_STATIC_GRAY 0x8007
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#define GLX_TRANSPARENT_RGB 0x8008
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#define GLX_TRANSPARENT_INDEX 0x8009
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#define GLX_NON_CONFORMANT_CONFIG 0x800D
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#define GLX_SWAP_EXCHANGE_OML 0x8061
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#define GLX_SWAP_COPY_OML 0x8062
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#define GLX_SWAP_UNDEFINED_OML 0x8063
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#define GLX_DONT_CARE 0xFFFFFFFF
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#define GLX_RGBA_BIT 0x00000001
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#define GLX_COLOR_INDEX_BIT 0x00000002
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#define GLX_WINDOW_BIT 0x00000001
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#define GLX_PIXMAP_BIT 0x00000002
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#define GLX_PBUFFER_BIT 0x00000004
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#define GLX_BIND_TO_TEXTURE_RGB_EXT 0x20D0
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#define GLX_BIND_TO_TEXTURE_RGBA_EXT 0x20D1
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#define GLX_BIND_TO_MIPMAP_TEXTURE_EXT 0x20D2
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#define GLX_BIND_TO_TEXTURE_TARGETS_EXT 0x20D3
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#define GLX_Y_INVERTED_EXT 0x20D4
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#define GLX_TEXTURE_1D_BIT_EXT 0x00000001
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#define GLX_TEXTURE_2D_BIT_EXT 0x00000002
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#define GLX_TEXTURE_RECTANGLE_BIT_EXT 0x00000004
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#endif /* __gl_core_h_ */
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