GL_EXT_shader_pixel_local_storage2
http://www.opengl.org/registry/specs/EXT/shader_pixel_local_storage2.txt
GL_EXT_shader_pixel_local_storage2

	GL_MAX_SHADER_COMBINED_LOCAL_STORAGE_FAST_SIZE_EXT 0x9650
	GL_MAX_SHADER_COMBINED_LOCAL_STORAGE_SIZE_EXT 0x9651
	GL_FRAMEBUFFER_INCOMPLETE_INSUFFICIENT_SHADER_COMBINED_LOCAL_STORAGE_EXT 0x9652
	void glClearPixelLocalStorageuiEXT (GLsizei offset, GLsizei n, const GLuint* values)
	void glFramebufferPixelLocalStorageSizeEXT (GLuint target, GLsizei size)
	GLsizei glGetFramebufferPixelLocalStorageSizeEXT (GLuint target)
