text: #ifndef OPENGL_GEN_CORE_1_2_H
  #define OPENGL_GEN_CORE_1_2_H
  
  #ifdef __cplusplus
  extern "C" {
  #endif /*__cplusplus*/
  #define GL_ALIASED_LINE_WIDTH_RANGE 0x846E
  #define GL_BGR 0x80E0
  #define GL_CLAMP_TO_EDGE 0x812F
  #define GL_MAX_3D_TEXTURE_SIZE 0x8073
  #define GL_MAX_ELEMENTS_INDICES 0x80E9
  #define GL_MAX_ELEMENTS_VERTICES 0x80E8
  #define GL_PACK_IMAGE_HEIGHT 0x806C
  #define GL_PACK_SKIP_IMAGES 0x806B
  #define GL_PROXY_TEXTURE_3D 0x8070
  #define GL_SMOOTH_LINE_WIDTH_GRANULARITY 0x0B23
  #define GL_SMOOTH_LINE_WIDTH_RANGE 0x0B22
  #define GL_SMOOTH_POINT_SIZE_GRANULARITY 0x0B13
  #define GL_SMOOTH_POINT_SIZE_RANGE 0x0B12
  #define GL_TEXTURE_BASE_LEVEL 0x813C
  #define GL_TEXTURE_BINDING_3D 0x806A
  #define GL_TEXTURE_DEPTH 0x8071
  #define GL_TEXTURE_MAX_LEVEL 0x813D
  #define GL_TEXTURE_MAX_LOD 0x813B
  #define GL_TEXTURE_MIN_LOD 0x813A
  #define GL_TEXTURE_WRAP_R 0x8072
  #define GL_UNPACK_IMAGE_HEIGHT 0x806E
  #define GL_UNPACK_SKIP_IMAGES 0x806D
  #define GL_UNSIGNED_BYTE_2_3_3_REV 0x8362
  #define GL_UNSIGNED_BYTE_3_3_2 0x8032
  #define GL_UNSIGNED_INT_10_10_10_2 0x8036
  #define GL_UNSIGNED_INT_8_8_8_8 0x8035
  #define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367
  #define GL_UNSIGNED_SHORT_1_5_5_5_REV 0x8366
  #define GL_UNSIGNED_SHORT_4_4_4_4 0x8033
  #define GL_UNSIGNED_SHORT_4_4_4_4_REV 0x8365
  #define GL_UNSIGNED_SHORT_5_5_5_1 0x8034
  #define GL_UNSIGNED_SHORT_5_6_5 0x8363
  #define GL_UNSIGNED_SHORT_5_6_5_REV 0x8364
  
  typedef void (CODEGEN_FUNCPTR * PFNGLBLENDCOLORPROC)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
  typedef void (CODEGEN_FUNCPTR * PFNGLBLENDEQUATIONPROC)(GLenum mode);
  typedef void (CODEGEN_FUNCPTR * PFNGLCOPYTEXSUBIMAGE3DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
  typedef void (CODEGEN_FUNCPTR * PFNGLDRAWRANGEELEMENTSPROC)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid * indices);
  typedef void (CODEGEN_FUNCPTR * PFNGLTEXIMAGE3DPROC)(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid * pixels);
  typedef void (CODEGEN_FUNCPTR * PFNGLTEXSUBIMAGE3DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const GLvoid * pixels);
  
  extern PFNGLBLENDCOLORPROC _funcptr_glBlendColor;
  #define glBlendColor _funcptr_glBlendColor
  extern PFNGLBLENDEQUATIONPROC _funcptr_glBlendEquation;
  #define glBlendEquation _funcptr_glBlendEquation
  extern PFNGLCOPYTEXSUBIMAGE3DPROC _funcptr_glCopyTexSubImage3D;
  #define glCopyTexSubImage3D _funcptr_glCopyTexSubImage3D
  extern PFNGLDRAWRANGEELEMENTSPROC _funcptr_glDrawRangeElements;
  #define glDrawRangeElements _funcptr_glDrawRangeElements
  extern PFNGLTEXIMAGE3DPROC _funcptr_glTexImage3D;
  #define glTexImage3D _funcptr_glTexImage3D
  extern PFNGLTEXSUBIMAGE3DPROC _funcptr_glTexSubImage3D;
  #define glTexSubImage3D _funcptr_glTexSubImage3D
  
  #ifdef __cplusplus
  }
  #endif /*__cplusplus*/
  #endif /*OPENGL_GEN_CORE_1_2_H*/
  