/* GdkGLExt - OpenGL Extension to GDK
 * Copyright (C) 2002-2003  Naofumi Yasufuku
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA.
 */

#ifndef __GDK_GL_TOKENS_H__
#define __GDK_GL_TOKENS_H__

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

/*
 * Success return value
 */
#define GDK_GL_SUCCESS          0  /* same as 'Success' of X11 */

/*
 * Attribute list terminator
 */
#define GDK_GL_ATTRIB_LIST_NONE 0  /* same as 'None' of X11 */

/*
 * This source is based on the OpenGL(R) Sample Implementation by SGI.
 */

/*
** 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: The application programming interfaces
** established by SGI in conjunction with the Original Code are The
** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
** Window System(R) (Version 1.3), released October 19, 1998. 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.
*/

/*
 * Visual Config Attributes.
 */
typedef enum
{
  GDK_GL_USE_GL                     = 1,  /* support GLX rendering */
  GDK_GL_BUFFER_SIZE                = 2,  /* depth of the color buffer */
  GDK_GL_LEVEL                      = 3,  /* level in plane stacking */
  GDK_GL_RGBA                       = 4,  /* true if RGBA mode */
  GDK_GL_DOUBLEBUFFER               = 5,  /* double buffering supported */
  GDK_GL_STEREO                     = 6,  /* stereo buffering supported */
  GDK_GL_AUX_BUFFERS                = 7,  /* number of aux buffers */
  GDK_GL_RED_SIZE                   = 8,  /* number of red component bits */
  GDK_GL_GREEN_SIZE                 = 9,  /* number of green component bits */
  GDK_GL_BLUE_SIZE                  = 10, /* number of blue component bits */
  GDK_GL_ALPHA_SIZE                 = 11, /* number of alpha component bits */
  GDK_GL_DEPTH_SIZE                 = 12, /* number of depth bits */
  GDK_GL_STENCIL_SIZE               = 13, /* number of stencil bits */
  GDK_GL_ACCUM_RED_SIZE             = 14, /* number of red accum bits */
  GDK_GL_ACCUM_GREEN_SIZE           = 15, /* number of green accum bits */
  GDK_GL_ACCUM_BLUE_SIZE            = 16, /* number of blue accum bits */
  GDK_GL_ACCUM_ALPHA_SIZE           = 17, /* number of alpha accum bits */

  /*
   * FBConfig-specific attributes.
   * [ GLX 1.3 and later ]
   */
  GDK_GL_CONFIG_CAVEAT              = 0x20,
  GDK_GL_X_VISUAL_TYPE              = 0x22,
  GDK_GL_TRANSPARENT_TYPE           = 0x23,
  GDK_GL_TRANSPARENT_INDEX_VALUE    = 0x24,
  GDK_GL_TRANSPARENT_RED_VALUE      = 0x25,
  GDK_GL_TRANSPARENT_GREEN_VALUE    = 0x26,
  GDK_GL_TRANSPARENT_BLUE_VALUE     = 0x27,
  GDK_GL_TRANSPARENT_ALPHA_VALUE    = 0x28,
  GDK_GL_DRAWABLE_TYPE              = 0x8010,
  GDK_GL_RENDER_TYPE                = 0x8011,
  GDK_GL_X_RENDERABLE               = 0x8012,
  GDK_GL_FBCONFIG_ID                = 0x8013,
  GDK_GL_MAX_PBUFFER_WIDTH          = 0x8016,
  GDK_GL_MAX_PBUFFER_HEIGHT         = 0x8017,
  GDK_GL_MAX_PBUFFER_PIXELS         = 0x8018,
  GDK_GL_VISUAL_ID                  = 0x800B,
  GDK_GL_SCREEN                     = 0x800C,

  /*
   * Multisampling configuration attributes.
   * [ GLX 1.4 and later ]
   */
  GDK_GL_SAMPLE_BUFFERS             = 100000,
  GDK_GL_SAMPLES                    = 100001

} GdkGLConfigAttrib;

/*
 * Generic "don't care" value.
 * [ GLX 1.3 and later ]
 */
#define GDK_GL_DONT_CARE              0xFFFFFFFF

/*
 * "none" value.
 * [ GLX 1.3 and later ]
 */
#define GDK_GL_NONE                   0x8000

/*
 * GLX_CONFIG_CAVEAT attribute values.
 * [ GLX 1.3 and later ]
 */
typedef enum
{
  GDK_GL_CONFIG_CAVEAT_DONT_CARE    = 0xFFFFFFFF, /* GDK_GL_DONT_CARE */
  GDK_GL_CONFIG_CAVEAT_NONE         = 0x8000,     /* GDK_GL_NONE */
  GDK_GL_SLOW_CONFIG                = 0x8001,
  GDK_GL_NON_CONFORMANT_CONFIG      = 0x800D
} GdkGLConfigCaveat;

/*
 * GLX_X_VISUAL_TYPE attribute values.
 * [ GLX 1.3 and later ]
 */
typedef enum
{
  GDK_GL_VISUAL_TYPE_DONT_CARE      = 0xFFFFFFFF, /* GDK_GL_DONT_CARE */
  GDK_GL_TRUE_COLOR                 = 0x8002,
  GDK_GL_DIRECT_COLOR               = 0x8003,
  GDK_GL_PSEUDO_COLOR               = 0x8004,
  GDK_GL_STATIC_COLOR               = 0x8005,
  GDK_GL_GRAY_SCALE                 = 0x8006,
  GDK_GL_STATIC_GRAY                = 0x8007
} GdkGLVisualType;

/*
 * GLX_TRANSPARENT_TYPE attribute values.
 * [ GLX 1.3 and later ]
 */
typedef enum
{
  GDK_GL_TRANSPARENT_NONE           = 0x8000, /* GDK_GL_NONE */
  GDK_GL_TRANSPARENT_RGB            = 0x8008,
  GDK_GL_TRANSPARENT_INDEX          = 0x8009
} GdkGLTransparentType;

/*
 * GLX_DRAWABLE_TYPE bits.
 * [ GLX 1.3 and later ]
 */
typedef enum
{
  GDK_GL_WINDOW_BIT                 = 1 << 0, /* 0x00000001 */
  GDK_GL_PIXMAP_BIT                 = 1 << 1, /* 0x00000002 */
  GDK_GL_PBUFFER_BIT                = 1 << 2  /* 0x00000004 */
} GdkGLDrawableTypeMask;

/*
 * GLX_RENDER_TYPE bits.
 * [ GLX 1.3 and later ]
 */
typedef enum
{
  GDK_GL_RGBA_BIT                   = 1 << 0, /* 0x00000001 */
  GDK_GL_COLOR_INDEX_BIT            = 1 << 1  /* 0x00000002 */
} GdkGLRenderTypeMask;

/*
 * Buffer mask bits.
 * [ GLX 1.3 and later ]
 */
typedef enum
{
  GDK_GL_FRONT_LEFT_BUFFER_BIT      = 1 << 0, /* 0x00000001 */
  GDK_GL_FRONT_RIGHT_BUFFER_BIT     = 1 << 1, /* 0x00000002 */
  GDK_GL_BACK_LEFT_BUFFER_BIT       = 1 << 2, /* 0x00000004 */
  GDK_GL_BACK_RIGHT_BUFFER_BIT      = 1 << 3, /* 0x00000008 */
  GDK_GL_AUX_BUFFERS_BIT            = 1 << 4, /* 0x00000010 */
  GDK_GL_DEPTH_BUFFER_BIT           = 1 << 5, /* 0x00000020 */
  GDK_GL_STENCIL_BUFFER_BIT         = 1 << 6, /* 0x00000040 */
  GDK_GL_ACCUM_BUFFER_BIT           = 1 << 7  /* 0x00000080 */
} GdkGLBufferMask;

/*
 * Error return values from glXGetConfig.  Success is indicated by
 * a value of 0.
 */
typedef enum
{
  GDK_GL_BAD_SCREEN                 = 1, /* screen # is bad */
  GDK_GL_BAD_ATTRIBUTE              = 2, /* attribute to get is bad */
  GDK_GL_NO_EXTENSION               = 3, /* no glx extension on server */
  GDK_GL_BAD_VISUAL                 = 4, /* visual # not known by GLX */
  GDK_GL_BAD_CONTEXT                = 5, /* returned only by import_context EXT? */
  GDK_GL_BAD_VALUE                  = 6, /* returned only by glXSwapIntervalSGI? */
  GDK_GL_BAD_ENUM                   = 7  /* unused? */
} GdkGLConfigError;

/*
 * glXCreateNewContext render_type attribute values.
 * [ GLX 1.3 and later ]
 */
typedef enum
{
  GDK_GL_RGBA_TYPE                  = 0x8014,
  GDK_GL_COLOR_INDEX_TYPE           = 0x8015
} GdkGLRenderType;

/*
 * glXQueryDrawable attributes.
 * [ GLX 1.3 and later ]
 */
typedef enum
{
  GDK_GL_PRESERVED_CONTENTS         = 0x801B,
  GDK_GL_LARGEST_PBUFFER            = 0x801C,
  GDK_GL_WIDTH                      = 0x801D,
  GDK_GL_HEIGHT                     = 0x801E,
  GDK_GL_EVENT_MASK                 = 0x801F
} GdkGLDrawableAttrib;

/*
 * glXCreatePbuffer attributes.
 * [ GLX 1.3 and later ]
 */
typedef enum
{
  GDK_GL_PBUFFER_PRESERVED_CONTENTS = 0x801B, /* GDK_GL_PRESERVED_CONTENTS */
  GDK_GL_PBUFFER_LARGEST_PBUFFER    = 0x801C, /* GDK_GL_LARGEST_PBUFFER */
  GDK_GL_PBUFFER_HEIGHT             = 0x8040,
  GDK_GL_PBUFFER_WIDTH              = 0x8041
} GdkGLPbufferAttrib;

/*
 * glXSelectEvent event mask bits.
 * [ GLX 1.3 and later ]
 */
typedef enum
{
  GDK_GL_PBUFFER_CLOBBER_MASK       = 1 << 27  /* 0x08000000 */
} GdkGLEventMask;

/*
 * GLXPbufferClobberEvent event_type values.
 * [ GLX 1.3 and later ]
 */
typedef enum
{
  GDK_GL_DAMAGED                    = 0x8020,
  GDK_GL_SAVED                      = 0x8021
} GdkGLEventType;

/*
 * GLXPbufferClobberEvent draw_type values.
 * [ GLX 1.3 and later ]
 */
typedef enum
{
  GDK_GL_WINDOW                     = 0x8022,
  GDK_GL_PBUFFER                    = 0x8023
} GdkGLDrawableType;

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* __GDK_GL_TOKENS_H__ */
