#ifndef __gl2_h_

#define __gl2_h_

/*

 * Portions Copyright (c) 2008 - 2009 Nokia Corporation and/or its subsidiary(-ies).

 * Differences from the actual sample implementation provided by Khronos:

 * 1. This comment text.

 * 2. Doxygen comment with tag 'publishedAll', and tag 'released'

 * 3. Include of Symbian-supplied gl2extplatform.h at the bottom of this

 *    file.  This is a means to disable specific gl2ext.h extensions.

 * 4. Added __SOFTFP decorations for call-by-value float functions

 */

/**

@publishedAll

@released

*/

/* $Id: gl2.h 4532 2007-11-26 11:12:44Z markc $ */

#include <GLES2/gl2platform.h>

#ifdef __cplusplus

extern "C" {

#endif

/*

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

** Copyright (C) 2008 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. 

*/

/*-------------------------------------------------------------------------

 * Data type definitions

 *-----------------------------------------------------------------------*/

typedef void            GLvoid;

typedef unsigned int    GLenum;

typedef unsigned char   GLboolean;

typedef unsigned int    GLbitfield;

typedef signed char     GLbyte;

typedef short           GLshort;

typedef int             GLint;

typedef int             GLsizei;

typedef unsigned char   GLubyte;

typedef unsigned short  GLushort;

typedef unsigned int    GLuint;

typedef float           GLfloat;

typedef float           GLclampf;

typedef int             GLfixed;

typedef int             GLclampx;

/* GL types for handling large vertex buffer objects */

typedef int             GLintptr;

typedef int             GLsizeiptr;

/* OpenGL ES core versions */

#define GL_ES_VERSION_2_0                 1

/* ClearBufferMask */

#define GL_DEPTH_BUFFER_BIT               0x00000100

#define GL_STENCIL_BUFFER_BIT             0x00000400

#define GL_COLOR_BUFFER_BIT               0x00004000

/* Boolean */

#define GL_FALSE                          0

#define GL_TRUE                           1

/* \todo check that this should be in core. */

#define GL_NONE                           0

/* BeginMode */

#define GL_POINTS                         0x0000

#define GL_LINES                          0x0001

#define GL_LINE_LOOP                      0x0002

#define GL_LINE_STRIP                     0x0003

#define GL_TRIANGLES                      0x0004

#define GL_TRIANGLE_STRIP                 0x0005

#define GL_TRIANGLE_FAN                   0x0006

/* AlphaFunction (not supported in ES20) */

/*      GL_NEVER */

/*      GL_LESS */

/*      GL_EQUAL */

/*      GL_LEQUAL */

/*      GL_GREATER */

/*      GL_NOTEQUAL */

/*      GL_GEQUAL */

/*      GL_ALWAYS */

/* BlendingFactorDest */

#define GL_ZERO                           0

#define GL_ONE                            1

#define GL_SRC_COLOR                      0x0300

#define GL_ONE_MINUS_SRC_COLOR            0x0301

#define GL_SRC_ALPHA                      0x0302

#define GL_ONE_MINUS_SRC_ALPHA            0x0303

#define GL_DST_ALPHA                      0x0304

#define GL_ONE_MINUS_DST_ALPHA            0x0305

/* BlendingFactorSrc */

/*      GL_ZERO */

/*      GL_ONE */

#define GL_DST_COLOR                      0x0306

#define GL_ONE_MINUS_DST_COLOR            0x0307

#define GL_SRC_ALPHA_SATURATE             0x0308

/*      GL_SRC_ALPHA */

/*      GL_ONE_MINUS_SRC_ALPHA */

/*      GL_DST_ALPHA */

/*      GL_ONE_MINUS_DST_ALPHA */

/* BlendEquationSeparate */

#define GL_FUNC_ADD                       0x8006

#define GL_BLEND_EQUATION                 0x8009

#define GL_BLEND_EQUATION_RGB             0x8009    /* same as BLEND_EQUATION */

#define GL_BLEND_EQUATION_ALPHA           0x883D

/* BlendSubtract */

#define GL_FUNC_SUBTRACT                  0x800A

#define GL_FUNC_REVERSE_SUBTRACT          0x800B

/* Separate Blend Functions */

#define GL_BLEND_DST_RGB                  0x80C8

#define GL_BLEND_SRC_RGB                  0x80C9

#define GL_BLEND_DST_ALPHA                0x80CA

#define GL_BLEND_SRC_ALPHA                0x80CB

#define GL_CONSTANT_COLOR                 0x8001

#define GL_ONE_MINUS_CONSTANT_COLOR       0x8002

#define GL_CONSTANT_ALPHA                 0x8003

#define GL_ONE_MINUS_CONSTANT_ALPHA       0x8004

#define GL_BLEND_COLOR                    0x8005

/* Buffer Objects */

#define GL_ARRAY_BUFFER                   0x8892

#define GL_ELEMENT_ARRAY_BUFFER           0x8893

#define GL_ARRAY_BUFFER_BINDING           0x8894

#define GL_ELEMENT_ARRAY_BUFFER_BINDING   0x8895

#define GL_STREAM_DRAW                    0x88E0

#define GL_STATIC_DRAW                    0x88E4

#define GL_DYNAMIC_DRAW                   0x88E8

#define GL_BUFFER_SIZE                    0x8764

#define GL_BUFFER_USAGE                   0x8765

#define GL_CURRENT_VERTEX_ATTRIB          0x8626

/* CullFaceMode */

#define GL_FRONT                          0x0404

#define GL_BACK                           0x0405

#define GL_FRONT_AND_BACK                 0x0408

/* DepthFunction */

/*      GL_NEVER */

/*      GL_LESS */

/*      GL_EQUAL */

/*      GL_LEQUAL */

/*      GL_GREATER */

/*      GL_NOTEQUAL */

/*      GL_GEQUAL */

/*      GL_ALWAYS */

/* EnableCap */

#define GL_TEXTURE_2D                     0x0DE1

#define GL_CULL_FACE                      0x0B44

#define GL_BLEND                          0x0BE2

#define GL_DITHER                         0x0BD0

#define GL_STENCIL_TEST                   0x0B90

#define GL_DEPTH_TEST                     0x0B71

#define GL_SCISSOR_TEST                   0x0C11

#define GL_POLYGON_OFFSET_FILL            0x8037

#define GL_SAMPLE_ALPHA_TO_COVERAGE       0x809E

#define GL_SAMPLE_COVERAGE                0x80A0

/* ErrorCode */

#define GL_NO_ERROR                       0

#define GL_INVALID_ENUM                   0x0500

#define GL_INVALID_VALUE                  0x0501

#define GL_INVALID_OPERATION              0x0502

#define GL_OUT_OF_MEMORY                  0x0505

/* FrontFaceDirection */

#define GL_CW                             0x0900

#define GL_CCW                            0x0901

/* GetPName */

#define GL_LINE_WIDTH                     0x0B21

#define GL_ALIASED_POINT_SIZE_RANGE       0x846D

#define GL_ALIASED_LINE_WIDTH_RANGE       0x846E

#define GL_CULL_FACE_MODE                 0x0B45

#define GL_FRONT_FACE                     0x0B46

#define GL_DEPTH_RANGE                    0x0B70

#define GL_DEPTH_WRITEMASK                0x0B72

#define GL_DEPTH_CLEAR_VALUE              0x0B73

#define GL_DEPTH_FUNC                     0x0B74

#define GL_STENCIL_CLEAR_VALUE            0x0B91

#define GL_STENCIL_FUNC                   0x0B92

#define GL_STENCIL_FAIL                   0x0B94

#define GL_STENCIL_PASS_DEPTH_FAIL        0x0B95

#define GL_STENCIL_PASS_DEPTH_PASS        0x0B96

#define GL_STENCIL_REF                    0x0B97

#define GL_STENCIL_VALUE_MASK             0x0B93

#define GL_STENCIL_WRITEMASK              0x0B98

#define GL_STENCIL_BACK_FUNC              0x8800

#define GL_STENCIL_BACK_FAIL              0x8801

#define GL_STENCIL_BACK_PASS_DEPTH_FAIL   0x8802

#define GL_STENCIL_BACK_PASS_DEPTH_PASS   0x8803

#define GL_STENCIL_BACK_REF               0x8CA3

#define GL_STENCIL_BACK_VALUE_MASK        0x8CA4

#define GL_STENCIL_BACK_WRITEMASK         0x8CA5

#define GL_VIEWPORT                       0x0BA2

#define GL_SCISSOR_BOX                    0x0C10

/*      GL_SCISSOR_TEST */

#define GL_COLOR_CLEAR_VALUE              0x0C22

#define GL_COLOR_WRITEMASK                0x0C23

#define GL_UNPACK_ALIGNMENT               0x0CF5

#define GL_PACK_ALIGNMENT                 0x0D05

#define GL_MAX_TEXTURE_SIZE               0x0D33

#define GL_MAX_VIEWPORT_DIMS              0x0D3A

#define GL_SUBPIXEL_BITS                  0x0D50

#define GL_RED_BITS                       0x0D52

#define GL_GREEN_BITS                     0x0D53

#define GL_BLUE_BITS                      0x0D54

#define GL_ALPHA_BITS                     0x0D55

#define GL_DEPTH_BITS                     0x0D56

#define GL_STENCIL_BITS                   0x0D57

#define GL_POLYGON_OFFSET_UNITS           0x2A00

/*      GL_POLYGON_OFFSET_FILL */

#define GL_POLYGON_OFFSET_FACTOR          0x8038

#define GL_TEXTURE_BINDING_2D             0x8069

#define GL_SAMPLE_BUFFERS                 0x80A8

#define GL_SAMPLES                        0x80A9

#define GL_SAMPLE_COVERAGE_VALUE          0x80AA

#define GL_SAMPLE_COVERAGE_INVERT         0x80AB

/* GetTextureParameter */

/*      GL_TEXTURE_MAG_FILTER */

/*      GL_TEXTURE_MIN_FILTER */

/*      GL_TEXTURE_WRAP_S */

/*      GL_TEXTURE_WRAP_T */

#define GL_NUM_COMPRESSED_TEXTURE_FORMATS 0x86A2

#define GL_COMPRESSED_TEXTURE_FORMATS     0x86A3

/* HintMode */

#define GL_DONT_CARE                      0x1100

#define GL_FASTEST                        0x1101

#define GL_NICEST                         0x1102

/* HintTarget */

#define GL_GENERATE_MIPMAP_HINT            0x8192

#define GL_FRAGMENT_SHADER_DERIVATIVE_HINT 0x8B8B

/* DataType */

#define GL_BYTE                           0x1400

#define GL_UNSIGNED_BYTE                  0x1401

#define GL_SHORT                          0x1402

#define GL_UNSIGNED_SHORT                 0x1403

#define GL_INT                            0x1404

#define GL_UNSIGNED_INT                   0x1405

#define GL_FLOAT                          0x1406

#define GL_FIXED                          0x140C

/* PixelFormat */

#define GL_DEPTH_COMPONENT                0x1902

#define GL_ALPHA                          0x1906

#define GL_RGB                            0x1907

#define GL_RGBA                           0x1908

#define GL_LUMINANCE                      0x1909

#define GL_LUMINANCE_ALPHA                0x190A

/* PixelType */

/*      GL_UNSIGNED_BYTE */

#define GL_UNSIGNED_SHORT_4_4_4_4         0x8033

#define GL_UNSIGNED_SHORT_5_5_5_1         0x8034

#define GL_UNSIGNED_SHORT_5_6_5           0x8363

/* Shaders */

#define GL_FRAGMENT_SHADER                  0x8B30

#define GL_VERTEX_SHADER                    0x8B31

#define GL_MAX_VERTEX_ATTRIBS               0x8869

#define GL_MAX_VERTEX_UNIFORM_VECTORS       0x8DFB

#define GL_MAX_VARYING_VECTORS              0x8DFC

#define GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS 0x8B4D

#define GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS   0x8B4C

#define GL_MAX_TEXTURE_IMAGE_UNITS          0x8872

#define GL_MAX_FRAGMENT_UNIFORM_VECTORS     0x8DFD

#define GL_SHADER_TYPE                      0x8B4F

#define GL_DELETE_STATUS                    0x8B80

#define GL_LINK_STATUS                      0x8B82

#define GL_VALIDATE_STATUS                  0x8B83

#define GL_ATTACHED_SHADERS                 0x8B85

#define GL_ACTIVE_UNIFORMS                  0x8B86

#define GL_ACTIVE_UNIFORM_MAX_LENGTH        0x8B87

#define GL_ACTIVE_ATTRIBUTES                0x8B89

#define GL_ACTIVE_ATTRIBUTE_MAX_LENGTH      0x8B8A

#define GL_SHADING_LANGUAGE_VERSION         0x8B8C

#define GL_CURRENT_PROGRAM                  0x8B8D

/* StencilFunction */

#define GL_NEVER                          0x0200

#define GL_LESS                           0x0201

#define GL_EQUAL                          0x0202

#define GL_LEQUAL                         0x0203

#define GL_GREATER                        0x0204

#define GL_NOTEQUAL                       0x0205

#define GL_GEQUAL                         0x0206

#define GL_ALWAYS                         0x0207

/* StencilOp */

/*      GL_ZERO */

#define GL_KEEP                           0x1E00

#define GL_REPLACE                        0x1E01

#define GL_INCR                           0x1E02

#define GL_DECR                           0x1E03

#define GL_INVERT                         0x150A

#define GL_INCR_WRAP                      0x8507

#define GL_DECR_WRAP                      0x8508

/* StringName */

#define GL_VENDOR                         0x1F00

#define GL_RENDERER                       0x1F01

#define GL_VERSION                        0x1F02

#define GL_EXTENSIONS                     0x1F03

/* TextureMagFilter */

#define GL_NEAREST                        0x2600

#define GL_LINEAR                         0x2601

/* TextureMinFilter */

/*      GL_NEAREST */

/*      GL_LINEAR */

#define GL_NEAREST_MIPMAP_NEAREST         0x2700

#define GL_LINEAR_MIPMAP_NEAREST          0x2701

#define GL_NEAREST_MIPMAP_LINEAR          0x2702

#define GL_LINEAR_MIPMAP_LINEAR           0x2703

/* TextureParameterName */

#define GL_TEXTURE_MAG_FILTER             0x2800

#define GL_TEXTURE_MIN_FILTER             0x2801

#define GL_TEXTURE_WRAP_S                 0x2802

#define GL_TEXTURE_WRAP_T                 0x2803

/* TextureTarget */

/*      GL_TEXTURE_2D */

#define GL_TEXTURE                        0x1702

#define GL_TEXTURE_CUBE_MAP               0x8513

#define GL_TEXTURE_BINDING_CUBE_MAP       0x8514

#define GL_TEXTURE_CUBE_MAP_POSITIVE_X    0x8515

#define GL_TEXTURE_CUBE_MAP_NEGATIVE_X    0x8516

#define GL_TEXTURE_CUBE_MAP_POSITIVE_Y    0x8517

#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y    0x8518

#define GL_TEXTURE_CUBE_MAP_POSITIVE_Z    0x8519

#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z    0x851A

#define GL_MAX_CUBE_MAP_TEXTURE_SIZE      0x851C

/* TextureUnit */

#define GL_TEXTURE0                       0x84C0

#define GL_TEXTURE1                       0x84C1

#define GL_TEXTURE2                       0x84C2

#define GL_TEXTURE3                       0x84C3

#define GL_TEXTURE4                       0x84C4

#define GL_TEXTURE5                       0x84C5

#define GL_TEXTURE6                       0x84C6

#define GL_TEXTURE7                       0x84C7

#define GL_TEXTURE8                       0x84C8

#define GL_TEXTURE9                       0x84C9

#define GL_TEXTURE10                      0x84CA

#define GL_TEXTURE11                      0x84CB

#define GL_TEXTURE12                      0x84CC

#define GL_TEXTURE13                      0x84CD

#define GL_TEXTURE14                      0x84CE

#define GL_TEXTURE15                      0x84CF

#define GL_TEXTURE16                      0x84D0

#define GL_TEXTURE17                      0x84D1

#define GL_TEXTURE18                      0x84D2

#define GL_TEXTURE19                      0x84D3

#define GL_TEXTURE20                      0x84D4

#define GL_TEXTURE21                      0x84D5

#define GL_TEXTURE22                      0x84D6

#define GL_TEXTURE23                      0x84D7

#define GL_TEXTURE24                      0x84D8

#define GL_TEXTURE25                      0x84D9

#define GL_TEXTURE26                      0x84DA

#define GL_TEXTURE27                      0x84DB

#define GL_TEXTURE28                      0x84DC

#define GL_TEXTURE29                      0x84DD

#define GL_TEXTURE30                      0x84DE

#define GL_TEXTURE31                      0x84DF

#define GL_ACTIVE_TEXTURE                 0x84E0

/* TextureWrapMode */

#define GL_REPEAT                         0x2901

#define GL_CLAMP_TO_EDGE                  0x812F

#define GL_MIRRORED_REPEAT                0x8370

/* Uniform Types */

#define GL_FLOAT_VEC2                     0x8B50

#define GL_FLOAT_VEC3                     0x8B51

#define GL_FLOAT_VEC4                     0x8B52

#define GL_INT_VEC2                       0x8B53

#define GL_INT_VEC3                       0x8B54

#define GL_INT_VEC4                       0x8B55

#define GL_BOOL                           0x8B56

#define GL_BOOL_VEC2                      0x8B57

#define GL_BOOL_VEC3                      0x8B58

#define GL_BOOL_VEC4                      0x8B59

#define GL_FLOAT_MAT2                     0x8B5A

#define GL_FLOAT_MAT3                     0x8B5B

#define GL_FLOAT_MAT4                     0x8B5C

#define GL_SAMPLER_2D                     0x8B5E

#define GL_SAMPLER_CUBE                   0x8B60

/* Vertex Arrays */

#define GL_VERTEX_ATTRIB_ARRAY_ENABLED        0x8622

#define GL_VERTEX_ATTRIB_ARRAY_SIZE           0x8623

#define GL_VERTEX_ATTRIB_ARRAY_STRIDE         0x8624

#define GL_VERTEX_ATTRIB_ARRAY_TYPE           0x8625

#define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED     0x886A

#define GL_VERTEX_ATTRIB_ARRAY_POINTER        0x8645

#define GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING 0x889F

/* Read Format */

#define GL_IMPLEMENTATION_COLOR_READ_TYPE   0x8B9A

#define GL_IMPLEMENTATION_COLOR_READ_FORMAT 0x8B9B

/* Shader Source */

#define GL_COMPILE_STATUS                 0x8B81

#define GL_INFO_LOG_LENGTH                0x8B84

#define GL_SHADER_SOURCE_LENGTH           0x8B88

#define GL_SHADER_COMPILER                0x8DFA

/* Shader Binary */

#define GL_PLATFORM_BINARY                0x8D63

#define GL_SHADER_BINARY_FORMATS          0x8DF8

#define GL_NUM_SHADER_BINARY_FORMATS      0x8DF9

/* Shader Precision-Specified Types */

#define GL_LOW_FLOAT                      0x8DF0

#define GL_MEDIUM_FLOAT                   0x8DF1

#define GL_HIGH_FLOAT                     0x8DF2

#define GL_LOW_INT                        0x8DF3

#define GL_MEDIUM_INT                     0x8DF4

#define GL_HIGH_INT                       0x8DF5

/* Framebuffer Object. */

#define GL_FRAMEBUFFER                    0x8D40

#define GL_RENDERBUFFER                   0x8D41

#define GL_RGBA4                          0x8056

#define GL_RGB5_A1                        0x8057

#define GL_RGB565                         0x8D62

#define GL_DEPTH_COMPONENT16              0x81A5

#define GL_STENCIL_INDEX                  0x1901

#define GL_STENCIL_INDEX8                 0x8D48

#define GL_RENDERBUFFER_WIDTH             0x8D42

#define GL_RENDERBUFFER_HEIGHT            0x8D43

#define GL_RENDERBUFFER_INTERNAL_FORMAT   0x8D44

#define GL_RENDERBUFFER_RED_SIZE          0x8D50

#define GL_RENDERBUFFER_GREEN_SIZE        0x8D51

#define GL_RENDERBUFFER_BLUE_SIZE         0x8D52

#define GL_RENDERBUFFER_ALPHA_SIZE        0x8D53

#define GL_RENDERBUFFER_DEPTH_SIZE        0x8D54

#define GL_RENDERBUFFER_STENCIL_SIZE      0x8D55

#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE           0x8CD0

#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME           0x8CD1

#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL         0x8CD2

#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE 0x8CD3

#define GL_COLOR_ATTACHMENT0              0x8CE0

#define GL_DEPTH_ATTACHMENT               0x8D00

#define GL_STENCIL_ATTACHMENT             0x8D20

#define GL_FRAMEBUFFER_COMPLETE                      0x8CD5

#define GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT         0x8CD6

#define GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT 0x8CD7

#define GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS         0x8CD9

#define GL_FRAMEBUFFER_INCOMPLETE_FORMATS            0x8CDA

#define GL_FRAMEBUFFER_UNSUPPORTED                   0x8CDD

#define GL_FRAMEBUFFER_BINDING            0x8CA6

#define GL_RENDERBUFFER_BINDING           0x8CA7

#define GL_MAX_RENDERBUFFER_SIZE          0x84E8

#define GL_INVALID_FRAMEBUFFER_OPERATION  0x0506

/*-------------------------------------------------------------------------

 * GL core functions.

 *-----------------------------------------------------------------------*/

GL_APICALL void         GL_APIENTRY glActiveTexture (GLenum texture);

GL_APICALL void         GL_APIENTRY glAttachShader (GLuint program, GLuint shader);

GL_APICALL void         GL_APIENTRY glBindAttribLocation (GLuint program, GLuint index, const char* name);

GL_APICALL void         GL_APIENTRY glBindBuffer (GLenum target, GLuint buffer);

GL_APICALL void         GL_APIENTRY glBindFramebuffer (GLenum target, GLuint framebuffer);

GL_APICALL void         GL_APIENTRY glBindRenderbuffer (GLenum target, GLuint renderbuffer);

GL_APICALL void         GL_APIENTRY glBindTexture (GLenum target, GLuint texture);

GL_APICALL void         GL_APIENTRY glBlendColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha) __SOFTFP;

GL_APICALL void         GL_APIENTRY glBlendEquation( GLenum mode );

GL_APICALL void         GL_APIENTRY glBlendEquationSeparate(GLenum modeRGB, GLenum modeAlpha);