w coordinates of the lower left
                    corner of the rectangular region of pixels to be
                    copied.</p></dd><dt><span class="term">
                    <em class="parameter"><code>width</code></em>
                </span></dt><dd><p>Specifies the width of the texture image. Must be 0 or
                    <math overflow="scroll">
                        <msup><mn>2</mn><mi>n</mi></msup>
                    </math>
                    for some integer <em class="replaceable"><co