40 lines
1.3 KiB
Rust
40 lines
1.3 KiB
Rust
use std::{cell::UnsafeCell, mem::MaybeUninit};
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use embedded_graphics::pixelcolor::Rgb565;
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use tinybmp::Bmp;
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thread_local! {
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pub static HUMIDITY_ICON: UnsafeCell<MaybeUninit<Bmp<'static, Rgb565>>> = const { UnsafeCell::new(MaybeUninit::zeroed()) };
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pub static TEMPERATURE_ICON: UnsafeCell<MaybeUninit<Bmp<'static, Rgb565>>> = const { UnsafeCell::new(MaybeUninit::zeroed()) };
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pub static VOC_ICON: UnsafeCell<MaybeUninit<Bmp<'static, Rgb565>>> = const { UnsafeCell::new(MaybeUninit::zeroed()) };
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pub static CO2_ICON: UnsafeCell<MaybeUninit<Bmp<'static, Rgb565>>> = const { UnsafeCell::new(MaybeUninit::zeroed()) };
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}
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macro_rules! load_image {
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($stat:expr, $path:expr) => {
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$stat
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.with(|x| *x.get() = MaybeUninit::new(Bmp::from_slice(include_bytes!($path)).unwrap()));
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};
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}
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#[macro_export]
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macro_rules! get_image {
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($image:expr) => {
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unsafe {
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&*std::mem::transmute::<*mut MaybeUninit<Bmp<Rgb565>>, *mut Bmp<Rgb565>>(
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$image.with(|g| g.get()),
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)
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}
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};
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}
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pub fn prepare_images()
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{
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unsafe {
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load_image!(HUMIDITY_ICON, "../assets/humidity-icon.bmp");
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load_image!(TEMPERATURE_ICON, "../assets/temperature-icon.bmp");
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load_image!(VOC_ICON, "../assets/voc-icon.bmp");
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load_image!(CO2_ICON, "../assets/co2-icon.bmp");
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}
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}
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