#ifndef __gl2ext_h_
#define __gl2ext_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 1.0 (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.
*/

#ifndef GL_APIENTRYP
#   define GL_APIENTRYP GL_APIENTRY*
#endif

/*------------------------------------------------------------------------*
 * OES extension tokens
 *------------------------------------------------------------------------*/

/* GL_OES_compressed_ETC1_RGB8_texture */
#ifndef GL_OES_compressed_ETC1_RGB8_texture
#define GL_ETC1_RGB8_OES                                        0x8D64
#endif

/* GL_OES_compressed_paletted_texture */
#ifndef GL_OES_compressed_paletted_texture
#define GL_PALETTE4_RGB8_OES                                    0x8B90
#define GL_PALETTE4_RGBA8_OES                                   0x8B91
#define GL_PALETTE4_R5_G6_B5_OES                                0x8B92
#define GL_PALETTE4_RGBA4_OES                                   0x8B93
#define GL_PALETTE4_RGB5_A1_OES                                 0x8B94
#define GL_PALETTE8_RGB8_OES                                    0x8B95
#define GL_PALETTE8_RGBA8_OES                                   0x8B96
#define GL_PALETTE8_R5_G6_B5_OES                                0x8B97
#define GL_PALETTE8_RGBA4_OES                                   0x8B98
#define GL_PALETTE8_RGB5_A1_OES                                 0x8B99
#endif

/* GL_OES_get_program_binary */
#ifndef GL_OES_get_program_binary
#define GL_PROGRAM_BINARY_LENGTH_OES                            0x8741
#define GL_NUM_PROGRAM_BINARY_FORMATS_OES                       0x87FE
#define GL_PROGRAM_BINARY_FORMATS_OES                           0x87FF
#endif


/* GL_OES_EGL_image */
#ifndef GL_OES_EGL_image
typedef void* GLeglImageOES;
#endif

/* GL_OES_depth24 */
#ifndef GL_OES_depth24
#define GL_DEPTH_COMPONENT24_OES                                0x81A6
#endif

/* GL_OES_depth32 */
#ifndef GL_OES_depth32
#define GL_DEPTH_COMPONENT32_OES                                0x81A7
#endif

/* GL_OES_depth_texture */
/* No new tokens introduced by this extension. */

/* GL_OES_mapbuffer */
#ifndef GL_OES_mapbuffer
/* GL_READ_ONLY and GL_READ_WRITE not supported */
#define GL_WRITE_ONLY_OES                                       0x88B9
#define GL_BUFFER_ACCESS_OES                                    0x88BB
#define GL_BUFFER_MAPPED_OES									0x88BC
#define GL_BUFFER_MAP_POINTER_OES								0x88BD
#endif

/* GL_OES_packed_depth_stencil */
#ifndef GL_OES_packed_depth_stencil
#define GL_DEPTH_STENCIL_OES                                    0x84F9
#define GL_UNSIGNED_INT_24_8_OES                                0x84FA
#define GL_DEPTH24_STENCIL8_OES                                 0x88F0
#endif

/* GL_OES_rgb8_rgba8 */
#ifndef GL_OES_rgb8_rgba8
#define GL_RGB8_OES												0x8051
#define GL_RGBA8_OES											0x8058
#endif

/* GL_OES_standard_derivatives */
#ifndef GL_OES_standard_derivatives
#define GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES                  0x8B8B
#endif

/* GL_OES_stencil1 */
#ifndef GL_OES_stencil1
#define GL_STENCIL_INDEX1_OES									0x8D46
#endif

/* GL_OES_stencil4 */
#ifndef GL_OES_stencil4
#define GL_STENCIL_INDEX4_OES									0x8D47
#endif

/* GL_OES_texture3D */
#ifndef GL_OES_texture3D
#define GL_TEXTURE_WRAP_R_OES                                   0x8072
#define GL_TEXTURE_3D_OES                                       0x806F
#define GL_TEXTURE_BINDING_3D_OES                               0x806A
#define GL_MAX_3D_TEXTURE_SIZE_OES                              0x8073
#define GL_SAMPLER_3D_OES                                       0x8B5F
#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_OES        0x8CD4
#endif

/* GL_OES_texture_half_float */
#ifndef GL_OES_texture_half_float
#define GL_HALF_FLOAT_OES										0x8D61
#endif

/* GL_OES_vertex_half_float */
/* GL_HALF_FLOAT_OES defined in GL_OES_texture_half_float already. */

/* GL_OES_vertex_type_10_10_10_2 */
#ifndef GL_OES_vertex_type_10_10_10_2
#define GL_UNSIGNED_INT_10_10_10_2_OES                          0x8DF6
#define GL_INT_10_10_10_2_OES                                   0x8DF7
#endif

/*------------------------------------------------------------------------*
 * AMD extension tokens
 *------------------------------------------------------------------------*/

/* GL_AMD_compressed_3DC_texture */
#ifndef GL_AMD_compressed_3DC_texture
#define GL_3DC_X_AMD                                            0x87F9
#define GL_3DC_XY_AMD                                           0x87FA
#endif

/* GL_AMD_compressed_ATC_texture */
#ifndef GL_AMD_compressed_ATC_texture
#define GL_ATC_RGB_AMD                                          0x8C92
#define GL_ATC_RGBA_EXPLICIT_ALPHA_AMD                          0x8C93
#define GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD                      0x87EE
#endif

/*------------------------------------------------------------------------*
 * EXT extension tokens
 *------------------------------------------------------------------------*/

/* GL_EXT_texture_filter_anisotropic */
#ifndef GL_EXT_texture_filter_anisotropic
#define GL_TEXTURE_MAX_ANISOTROPY_EXT                           0x84FE
#define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT                       0x84FF
#endif

/* GL_EXT_texture_type_2_10_10_10_REV */
#ifndef GL_EXT_texture_type_2_10_10_10_REV
#define GL_UNSIGNED_INT_2_10_10_10_REV_EXT                      0x8368
#endif


/* GL_IMG_texture_stream */
#ifndef GL_IMG_texture_stream
#define GL_TEXTURE_STREAM_IMG 									0x8C0D 	
#define GL_TEXTURE_NUM_STREAM_DEVICES_IMG 						0x8C0E 	
#define GL_TEXTURE_STREAM_DEVICE_WIDTH_IMG 						0x8C0F
#define GL_TEXTURE_STREAM_DEVICE_HEIGHT_IMG 					0x8EA0 	
#define GL_TEXTURE_STREAM_DEVICE_FORMAT_IMG 					0x8EA1 	 
#define GL_TEXTURE_STREAM_DEVICE_NUM_BUFFERS_IMG 				0x8EA2 	
#define GL_TEXTURE_BINDING_STREAM_IMG  							0x600D
#define GL_SAMPLER_STREAM_IMG  									0x600E
#endif

/* IMG_texture_compression_pvrtc */
#ifndef GL_IMG_texture_compression_pvrtc
#define GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG						0x8C00
#define GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG						0x8C01
#define GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG						0x8C02
#define GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG						0x8C03
#endif

/* IMG_shader_binary */
#ifndef GL_IMG_shader_binary
#define GL_SGX_BINARY_IMG										0x8C0A
#endif

/* GL_IMG_texture_format_BGRA8888 */
#ifndef GL_IMG_texture_format_BGRA8888
#ifndef GL_BGRA
#define GL_BGRA													0x80E1
#endif
#endif

/* IMG_program_binary - FIXME: experimental enum */
#ifndef GL_IMG_program_binary
#define GL_SGX_PROGRAM_BINARY_IMG								0x600F 
#endif
/*------------------------------------------------------------------------*
 * OES extension functions
 *------------------------------------------------------------------------*/

/* GL_OES_compressed_ETC1_RGB8_texture */
#ifndef GL_OES_compressed_ETC1_RGB8_texture
#define GL_OES_compressed_ETC1_RGB8_texture 1
#endif

/* GL_OES_compressed_paletted_texture */
#ifndef GL_OES_compressed_paletted_texture
#define GL_OES_compressed_paletted_texture 1
#endif

/* GL_OES_EGL_image */
#ifndef GL_OES_EGL_image
#define GL_OES_EGL_image 1
#ifdef GL_GLEXT_PROTOTYPES
GL_APICALL void GL_APIENTRY glEGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image);
GL_APICALL void GL_APIENTRY glEGLImageTargetRenderbufferStorageOES (GLenum target, GLeglImageOES image);
#endif
typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETTEXTURE2DOESPROC) (GLenum target, GLeglImageOES image);
typedef void (GL_APIENTRYP PFNGLEGLIMAGETARGETRENDERBUFFERSTORAGEOESPROC) (GLenum target, GLeglImageOES image);
#endif

/* GL_OES_depth24 */
#ifndef GL_OES_depth24
#define GL_OES_depth24 1
#endif

/* GL_OES_depth32 */
#ifndef GL_OES_depth32
#define GL_OES_depth32 1
#endif

/* GL_OES_depth_texture */
#ifndef GL_OES_depth_texture
#define GL_OES_depth_texture 1
#endif

/* GL_OES_element_index_uint */
#ifndef GL_OES_element_index_uint
#define GL_OES_element_index_uint 1
#endif

/* GL_OES_fbo_render_mipmap */
#ifndef GL_OES_fbo_render_mipmap
#define GL_OES_fbo_render_mipmap 1
#endif

/* GL_OES_fragment_precision_high */
#ifndef GL_OES_fragment_precision_high
#define GL_OES_fragment_precision_high 1
#endif

/* GL_OES_mapbuffer */
#ifndef GL_OES_mapbuffer
#define GL_OES_mapbuffer 1
#ifdef GL_GLEXT_PROTOTYPES
GL_APICALL void* GL_APIENTRY glMapBufferOES (GLenum target, GLenum access);
GL_APICALL GLboolean GL_APIENTRY glUnmapBufferOES (GLenum target);
GL_APICALL void GL_APIENTRY glGetBufferPointervOES (GLenum target, GLenum pname, void** params);
#endif
typedef void* (GL_APIENTRYP PFNGLMAPBUFFEROESPROC) (GLenum target, GLenum access);
typedef GLboolean (GL_APIENTRYP PFNGLUNMAPBUFFEROESPROC) (GLenum target);
typedef void (GL_APIENTRYP PFNGLGETBUFFERPOINTERVOESPROC) (GLenum target, GLenum pname, void** params);
#endif

/* GL_OES_packed_depth_stencil */
#ifndef GL_OES_packed_depth_stencil
#define GL_OES_packed_depth_stencil 1
#endif

/* GL_OES_rgb8_rgba8 */
#ifndef GL_OES_rgb8_rgba8
#define GL_OES_rgb8_rgba8 1
#endif

/* GL_OES_standard_derivatives */
#ifndef GL_OES_standard_derivatives
#define GL_OES_standard_derivatives 1
#endif

/* GL_OES_stencil1 */
#ifndef GL_OES_stencil1
#define GL_OES_stencil1 1
#endif

/* GL_OES_stencil4 */
#ifndef GL_OES_stencil4
#define GL_OES_stencil4 1
#endif

/* GL_OES_texture_3D */
#ifndef GL_OES_texture_3D
#define GL_OES_texture_3D 1
#ifdef GL_GLEXT_PROTOTYPES
GL_APICALL void GL_APIENTRY glTexImage3DOES (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const void* pixels);
GL_APICALL void GL_APIENTRY glTexSubImage3DOES (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void* pixels);
GL_APICALL void GL_APIENTRY glCopyTexSubImage3DOES (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
GL_APICALL void GL_APIENTRY glCompressedTexImage3DOES (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void* data);
GL_APICALL void GL_APIENTRY glCompressedTexSubImage3DOES (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void* data);
GL_APICALL void GL_APIENTRY glFramebufferTexture3DOES (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset);
#endif
typedef void (GL_APIENTRYP PFNGLTEXIMAGE3DOESPROC) (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid* pixels);
typedef void (GL_APIENTRYP PFNGLTEXSUBIMAGE3DOESPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void* pixels);
typedef void (GL_APIENTRYP PFNGLCOPYTEXSUBIMAGE3DOESPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
typedef void (GL_APIENTRYP PFNGLCOMPRESSEDTEXIMAGE3DOESPROC) (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void* data);
typedef void (GL_APIENTRYP PFNGLCOMPRESSEDTEXSUBIMAGE3DOESPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void* data);
typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERTEXTURE3DOES) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset);
#endif

/* GL_OES_texture_float_linear */
#ifndef GL_OES_texture_float_linear
#define GL_OES_texture_float_linear 1
#endif

/* GL_OES_texture_half_float_linear */
#ifndef GL_OES_texture_half_float_linear
#define GL_OES_texture_half_float_linear 1
#endif

/* GL_OES_texture_float */
#ifndef GL_OES_texture_float
#define GL_OES_texture_float 1
#endif

/* GL_OES_texture_half_float */
#ifndef GL_OES_texture_half_float
#define GL_OES_texture_half_float 1
#endif

/* GL_OES_texture_npot */
#ifndef GL_OES_texture_npot
#define GL_OES_texture_npot 1
#endif

/* GL_OES_vertex_half_float */
#ifndef GL_OES_vertex_half_float
#define GL_OES_vertex_half_float 1
#endif

/* GL_OES_vertex_type_10_10_10_2 */
#ifndef GL_OES_vertex_type_10_10_10_2
#define GL_OES_vertex_type_10_10_10_2 1
#endif

/*------------------------------------------------------------------------*
 * AMD extension functions
 *------------------------------------------------------------------------*/

/* GL_AMD_compressed_3DC_texture */
#ifndef GL_AMD_compressed_3DC_texture
#define GL_AMD_compressed_3DC_texture 1
#endif

/* GL_AMD_compressed_ATC_texture */
#ifndef GL_AMD_compressed_ATC_texture
#define GL_AMD_compressed_ATC_texture 1
#endif

/*------------------------------------------------------------------------*
 * EXT extension functions
 *------------------------------------------------------------------------*/

/* GL_EXT_texture_filter_anisotropic */
#ifndef GL_EXT_texture_filter_anisotropic
#define GL_EXT_texture_filter_anisotropic 1
#endif

/* GL_EXT_texture_type_2_10_10_10_REV */
#ifndef GL_EXT_texture_type_2_10_10_10_REV
#define GL_EXT_texture_type_2_10_10_10_REV 1
#endif

/* GL_IMG_texture_compression_pvrtc */
#ifndef GL_IMG_texture_compression_pvrtc
#define GL_IMG_texture_compression_pvrtc 1
#endif


/* GL_IMG_texture_stream */
#ifndef GL_IMG_texture_stream2
#define GL_IMG_texture_stream2 1
#ifdef GL_GLEXT_PROTOTYPES
GL_APICALL void GL_APIENTRY glTexBindStreamIMG(GLint device, GLint deviceoffset);
GL_APICALL void GL_APIENTRY glGetTexStreamDeviceAttributeivIMG(GLint device, GLenum pname, GLint *params);
GL_APICALL const GLubyte * GL_APIENTRY glGetTexStreamDeviceNameIMG(GLint device);
#endif

typedef void (GL_APIENTRYP PFNGLTEXBINDSTREAMIMGPROC) (GLint device, GLint deviceoffset);
typedef const GLubyte *(GL_APIENTRYP PFNGLGETTEXSTREAMDEVICENAMEIMGPROC) (GLenum target);
typedef void (GL_APIENTRYP PFNGLGETTEXSTREAMDEVICEATTRIBUTEIVIMGPROC) (GLenum target, GLenum pname, GLint *params);


/* GL_OES_get_program_binary */
#ifndef GL_OES_get_program_binary
#define GL_OES_get_program_binary 1
#ifdef GL_GLEXT_PROTOTYPES
GL_APICALL void GL_APIENTRY glGetProgramBinaryOES (GLuint program, GLsizei bufSize, GLsizei *length, GLenum *binaryFormat, void *binary);
GL_APICALL void GL_APIENTRY glProgramBinaryOES (GLuint program, GLenum binaryFormat, const void *binary, GLint length);
#endif
typedef void (GL_APIENTRYP PFNGLGETPROGRAMBINARYOESPROC) (GLuint program, GLsizei bufSize, GLsizei *length, GLenum *binaryFormat, void *binary);
typedef void (GL_APIENTRYP PFNGLPROGRAMBINARYOESPROC) (GLuint program, GLenum binaryFormat, const void *binary, GLint length);
#endif

/* IMG_program_binary */
#ifndef GL_IMG_program_binary
#define GL_IMG_program_binary 1 
#endif

#endif

#ifdef __cplusplus
}
#endif

#endif /* __gl2ext_h_ */
