ize = 1; size <= 4; ++size) {
      debug("");
      debug("checking: " + wtu.glEnumToString(gl, info.type) + " with size " + size);
      var bytesPerElement = size * info.bytesPerComponent;
      var offsetSet = [
          0,
          1,
          info.bytesPerComponent - 1,
          info.bytesPerComponent,
          info.bytesPerComponent + 1,
          info.bytesPerComponent * 2];
      for (var jj = 0; jj < offsetSet.length; ++jj) {
        var offset = offsetSet[jj];
        for (var kk = 0; kk < o