How to rotate 45° for display

[ham0nd]

hi,bodmer @Bodmer . i have a 240*240 ST7789 screen and i want to rotate 45° for display,like this.can you tell me how to use tft_espi to rotate 45° for display?thanks
if there is currently no ready-made function in tft_espi and If you have an idea to implement it, please give me some guidance, I can help write this function.