GL_EXT_buffer_storage
http://www.opengl.org/registry/specs/EXT/buffer_storage.txt
GL_EXT_buffer_storage

	GL_MAP_READ_BIT 0x0001
	GL_MAP_WRITE_BIT 0x0002
	GL_MAP_PERSISTENT_BIT_EXT 0x0040
	GL_MAP_COHERENT_BIT_EXT 0x0080
	GL_DYNAMIC_STORAGE_BIT_EXT 0x0100
	GL_CLIENT_STORAGE_BIT_EXT 0x0200
	GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT_EXT 0x00004000
	GL_BUFFER_IMMUTABLE_STORAGE_EXT 0x821F
	GL_BUFFER_STORAGE_FLAGS_EXT 0x8220
	void glBufferStorageEXT (GLenum target, GLsizeiptr size, const void *data, GLbitfield flags)
	void glNamedBufferStorageEXT (GLuint buffer, GLsizeiptr size, const void *data, GLbitfield flags)
