| blitRgbImage | (x, y, width, height, arr, offset, from_queue) | Blit RGB encoded image to display
| blitRgbxImage | (x, y, width, height, arr, offset, from_queue) | Blit RGBX encoded image to display
| drawImage | (img, x, y) | Draw image and track damage
-| changeCursor | (pixels, mask, hotx, hoty, w, h) | Change cursor appearance
-| defaultCursor | () | Restore default cursor appearance
-| disableLocalCursor | () | Disable local (client-side) cursor
| autoscale | (containerWidth, containerHeight) | Scale the display
### 2.3.3 Callbacks