 used
            for a given texture may be determined by calling <a class="citerefentry" href="glGetTexParameter"><span class="citerefentry"><span class="refentrytitle">glGetTexParameter</span></span></a>
            with <em class="parameter"><code>value</code></em>
            set to <code class="constant">GL_IMAGE_FORMAT_COMPATIBILITY_TYPE</code>, with return values of <code class="constant">GL_IMAGE_FORMAT_COMPATIBILITY_BY_SIZE</code>
            and <code class="constant">GL_IMAGE_FORMAT_COMPATIBILIT