- shared_ptr<RGBAFrame> rgba_frame (new RGBAFrame (xyz_frame->x1, xyz_frame->y1));
-
- uint8_t* rgba = rgba_frame->data ();
-
- for (int y = 0; y < xyz_frame->y1; ++y) {
- uint8_t* rgba_line = rgba;
- for (int x = 0; x < xyz_frame->x1; ++x) {
-
- assert (*xyz_x >= 0 && *xyz_y >= 0 && *xyz_z >= 0 && *xyz_x < 4096 && *xyz_x < 4096 && *xyz_z < 4096);
-
- /* In gamma LUT */
- s.x = lut_in[*xyz_x++];
- s.y = lut_in[*xyz_y++];
- s.z = lut_in[*xyz_z++];
-
- /* DCI companding */
- s.x /= DCI_COEFFICIENT;
- s.y /= DCI_COEFFICIENT;
- s.z /= DCI_COEFFICIENT;
-
- /* XYZ to RGB */
- d.r = ((s.x * color_matrix[0][0]) + (s.y * color_matrix[0][1]) + (s.z * color_matrix[0][2]));
- d.g = ((s.x * color_matrix[1][0]) + (s.y * color_matrix[1][1]) + (s.z * color_matrix[1][2]));
- d.b = ((s.x * color_matrix[2][0]) + (s.y * color_matrix[2][1]) + (s.z * color_matrix[2][2]));
-
- d.r = min (d.r, 1.0);
- d.r = max (d.r, 0.0);
-
- d.g = min (d.g, 1.0);
- d.g = max (d.g, 0.0);
-
- d.b = min (d.b, 1.0);
- d.b = max (d.b, 0.0);
-
- /* Out gamma LUT */
- *rgba_line++ = lut_out[(int) (d.r * COLOR_DEPTH)];
- *rgba_line++ = lut_out[(int) (d.g * COLOR_DEPTH)];
- *rgba_line++ = lut_out[(int) (d.b * COLOR_DEPTH)];
- *rgba_line++ = 0xff;
- }
-
- rgba += rgba_frame->stride ();
+/** @param reduce a factor by which to reduce the resolution
+ * of the image, expressed as a power of two (pass 0 for no
+ * reduction).
+ *
+ * @param eye Eye to return (EYE_LEFT or EYE_RIGHT).
+ *
+ * @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).
+ *
+ */
+shared_ptr<ARGBFrame>
+StereoPictureFrame::argb_frame (Eye eye, int reduce) const
+{
+ opj_image_t* xyz_frame = 0;
+ switch (eye) {
+ case LEFT:
+ xyz_frame = decompress_j2k (const_cast<uint8_t*> (_buffer->Left.RoData()), _buffer->Left.Size(), reduce);
+ break;
+ case RIGHT:
+ xyz_frame = decompress_j2k (const_cast<uint8_t*> (_buffer->Right.RoData()), _buffer->Right.Size(), reduce);
+ break;