gl.h

brew 3D 上的扩展包,是openGL ES的底层API

#ifndef GL_H
#define GL_H
/*===========================================================================

     O P E N G L - E S   I N T E R F A C E   H E A D E R   F I L E

DESCRIPTION
  This header file contains definitions to support the OpenGL-ES 3D API
  functions. This API meets the OpenGL ES Light Profile, as defined by
  the Khronos open standards group.

REFERENCES
  None.

===========================================================================*/

/*
** 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.
*/

/*===========================================================================*/

/* For compiling in DLL library */
#ifndef APIENTRY
#define APIENTRY
#endif

#if defined(_WIN32) && !defined(__MINGW32__)
  #ifdef _USRDLL
    #define GLAPI __declspec(dllexport)
  #else
    #ifndef _AFXDLL
      #define GLAPI __declspec(dllimport)
    #else
      #define GLAPI
    #endif
  #endif
#else
  #define GLAPI
#endif

/* For C++ user
*/
#ifdef __cplusplus
extern "C" {
#endif


/* <EJECT> */
/*===========================================================================

            D A T A   T Y P E  D E F I N I T I O N S

===========================================================================*/

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 void GLvoid;
typedef int GLintptrARB;
typedef int GLsizeiptrARB;
typedef int GLfixed;
typedef int GLclampx;
/* Internal convenience typedefs */
typedef void (*_GLfuncptr)();

/*************************************************************/

/* Extensions */
#define GL_OES_VERSION_1_0                1
#define GL_OES_read_format                1
#define GL_OES_compressed_paletted_texture 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

/* 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 */
#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

/* 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 */

/* ColorMaterialFace */
/*      GL_FRONT_AND_BACK */

/* ColorMaterialParameter */
/*      GL_AMBIENT_AND_DIFFUSE */

/* ColorPointerType */
/*      GL_UNSIGNED_BYTE */
/*      GL_FLOAT */
/*      GL_FIXED */

/* 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_FOG                            0x0B60
#define GL_LIGHTING                       0x0B50
#define GL_TEXTURE_2D                     0x0DE1
#define GL_CULL_FACE                      0x0B44
#define GL_ALPHA_TEST                     0x0BC0
#define GL_BLEND                          0x0BE2
#define GL_COLOR_LOGIC_OP                 0x0BF2
#define GL_DITHER                         0x0BD0
#define GL_STENCIL_TEST                   0x0B90
#define GL_DEPTH_TEST                     0x0B71
/*      GL_LIGHT0 */
/*      GL_LIGHT1 */
/*      GL_LIGHT2 */
/*      GL_LIGHT3 */
/*      GL_LIGHT4 */
/*      GL_LIGHT5 */
/*      GL_LIGHT6 */
/*      GL_LIGHT7 */
#define GL_POINT_SMOOTH                   0x0B10
#define GL_LINE_SMOOTH                    0x0B20
#define GL_SCISSOR_TEST                   0x0C11
#define GL_COLOR_MATERIAL                 0x0B57
#define GL_NORMALIZE                      0x0BA1
#define GL_RESCALE_NORMAL                 0x803A
#define GL_POLYGON_OFFSET_FILL            0x8037
#define GL_VERTEX_ARRAY                   0x8074
#define GL_NORMAL_ARRAY                   0x8075
#define GL_COLOR_ARRAY                    0x8076
#define GL_TEXTURE_COORD_ARRAY            0x8078
#define GL_MULTISAMPLE                    0x809D
#define GL_SAMPLE_ALPHA_TO_COVERAGE       0x809E
#define GL_SAMPLE_ALPHA_TO_ONE            0x809F
#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_STACK_OVERFLOW                 0x0503
#define GL_STACK_UNDERFLOW                0x0504
#define GL_OUT_OF_MEMORY                  0x0505

/* FogMode */
/*      GL_LINEAR */
#define GL_EXP                            0x0800
#define GL_EXP2                           0x0801

/* FogParameter */
#define GL_FOG_DENSITY                    0x0B62
#define GL_FOG_START                      0x0B63
#define GL_FOG_END                        0x0B64
#define GL_FOG_MODE                       0x0B65
#define GL_FOG_COLOR                      0x0B66

/* FrontFaceDirection */
#define GL_CW                             0x0900
#define GL_CCW                            0x0901

/* GetPName */
#define GL_SMOOTH_POINT_SIZE_RANGE        0x0B12
#define GL_SMOOTH_LINE_WIDTH_RANGE        0x0B22
#define GL_ALIASED_POINT_SIZE_RANGE       0x846D
#define GL_ALIASED_LINE_WIDTH_RANGE       0x846E
#define GL_IMPLEMENTATION_COLOR_READ_TYPE_OES 0x8B9A
#define GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES 0x8B9B
#define GL_MAX_LIGHTS                     0x0D31
#define GL_MAX_TEXTURE_SIZE               0x0D33
#define GL_MAX_MODELVIEW_STACK_DEPTH      0x0D36
#define GL_MAX_PROJECTION_STACK_DEPTH     0x0D38
#define GL_MAX_TEXTURE_STACK_DEPTH        0x0D39
#define GL_MAX_VIEWPORT_DIMS              0x0D3A
#define GL_MAX_ELEMENTS_VERTICES          0x80E8
#define GL_MAX_ELEMENTS_INDICES           0x80E9
#define GL_MAX_TEXTURE_UNITS              0x84E2
#define GL_NUM_COMPRESSED_TEXTURE_FORMATS 0x86A2
#define GL_COMPRESSED_TEXTURE_FORMATS     0x86A3
#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

/* HintMode */
#define GL_DONT_CARE                      0x1100
#define GL_FASTEST                        0x1101
#define GL_NICEST                         0x1102

/* HintTarget */
#define GL_PERSPECTIVE_CORRECTION_HINT    0x0C50
#define GL_POINT_SMOOTH_HINT              0x0C51
#define GL_LINE_SMOOTH_HINT               0x0C52
#define GL_POLYGON_SMOOTH_HINT            0x0C53
#define GL_FOG_HINT                       0x0C54

/* LightModelParameter */
#define GL_LIGHT_MODEL_AMBIENT            0x0B53
#define GL_LIGHT_MODEL_TWO_SIDE           0x0B52

/* LightParameter */
#define GL_AMBIENT                        0x1200
#define GL_DIFFUSE                        0x1201
#define GL_SPECULAR                       0x1202
#define GL_POSITION                       0x1203