NatCamUtilities.cs

public static void RotateImage (Color32[] dst, Color32[] src, int width, int height, byte orientation) {
    int rotation = ..., mirror = ...; // Extract the rotation and mirror bits from the orientation byte
    Func<int, int> kernel = null;
    switch (rotation) {
        case 0: kernel = i => i; break;                                                                 // 0
        case 1: kernel = i => height * (width - 1 - i % width) + i / width; break;                      // 90
        case 2: kernel = i => src.Length - 1 - i; break;                                                // 180
        case 3: kernel = i => src.Length - 1 - (height * (width - 1 - i % width) + i / width); break;   // 270
    }
    for (int i = 0; i < src.Length; i++) dst[kernel(i)] = src[i]; // Reposition the pixels // Memory accesses for the destination buffer are all over the place
    if (mirror == 1) ...;
}