void (APIENTRY * glBindBufferARB) (GLenum target, GLuint buffer);
void (APIENTRY * glGenBuffersARB) (GLsizei n, GLuint *buffers);
void (APIENTRY * glDeleteBuffersARB) (GLsizei n, const GLuint *buffers);
void (APIENTRY * glBufferDataARB) (GLenum target, int size, const GLvoid *data, GLenum usage);
void (APIENTRY * glBindBufferARB) (GLenum target, GLuint buffer);
void (APIENTRY * glGenBuffersARB) (GLsizei n, GLuint *buffers);
void (APIENTRY * glDeleteBuffersARB) (GLsizei n, const GLuint *buffers);
void (APIENTRY * glBufferDataARB) (GLenum target, int size, const GLvoid *data, GLenum usage);