GL_ARB_sparse_texture
http://www.opengl.org/registry/specs/ARB/sparse_texture.txt
GL_ARB_sparse_texture

	GL_VIRTUAL_PAGE_SIZE_X_ARB 0x9195
	GL_VIRTUAL_PAGE_SIZE_Y_ARB 0x9196
	GL_VIRTUAL_PAGE_SIZE_Z_ARB 0x9197
	GL_MAX_SPARSE_TEXTURE_SIZE_ARB 0x9198
	GL_MAX_SPARSE_3D_TEXTURE_SIZE_ARB 0x9199
	GL_MAX_SPARSE_ARRAY_TEXTURE_LAYERS_ARB 0x919A
	GL_TEXTURE_SPARSE_ARB 0x91A6
	GL_VIRTUAL_PAGE_SIZE_INDEX_ARB 0x91A7
	GL_NUM_VIRTUAL_PAGE_SIZES_ARB 0x91A8
	GL_SPARSE_TEXTURE_FULL_ARRAY_CUBE_MIPMAPS_ARB 0x91A9
	GL_NUM_SPARSE_LEVELS_ARB 0x91AA
	void glTexPageCommitmentARB (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLboolean commit)
