- * @param srgb_gamma Reciprocal of gamma to use when doing the
- * output gamma correction (after conversion from XYZ to RGB).
- *
- * @return An ARGB representation of one of the eyes (left or right)
- * of this frame. This is ARGB in the Cairo sense, so that each
- * pixel takes up 4 bytes; the first byte is blue, second green,
- * third red and fourth alpha (always 255).
- *