57 lines
2.3 KiB
Rust
57 lines
2.3 KiB
Rust
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use core::{cell::RefCell, time::Duration};
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use alloc::rc::Rc;
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use esp_hal::time::Instant;
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use log::info;
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use slint::{PhysicalSize, WindowSize, platform::software_renderer::{RenderingRotation, RepaintBufferType, Rgb565Pixel, SoftwareRenderer}};
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use super::window_adapter::SoftwareWindowAdapter;
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pub struct FramebufferPtr(pub *mut [Rgb565Pixel]);
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unsafe impl Send for FramebufferPtr {}
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pub struct SlintBackend {
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pub window_size: [u32; 2],
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pub window: RefCell<Option<Rc<SoftwareWindowAdapter>>>,
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pub framebuffer: FramebufferPtr,
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// pub peripherals: RefCell<Option<Peripherals>>,
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}
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impl slint::platform::Platform for SlintBackend {
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fn create_window_adapter(&self) -> Result<Rc<dyn slint::platform::WindowAdapter>, slint::PlatformError> {
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// TODO: Custom window adapter impl needs to be implemented, so we can change `rotation` on
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// `SoftwareRenderer`.
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let renderer = SoftwareRenderer::new_with_repaint_buffer_type(RepaintBufferType::ReusedBuffer /* TODO: Implement a swapchain */);
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renderer.set_rendering_rotation(RenderingRotation::Rotate270);
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let window = SoftwareWindowAdapter::new(renderer);
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// window.set_scale_factor(4.0);
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window.set_size(WindowSize::Physical(PhysicalSize::new(self.window_size[0], self.window_size[1])));
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self.window.replace(Some(window.clone()));
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Ok(window)
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}
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fn duration_since_start(&self) -> Duration {
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Duration::from_millis(Instant::now().duration_since_epoch().as_millis())
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}
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fn run_event_loop(&self) -> Result<(), slint::PlatformError> {
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loop {
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slint::platform::update_timers_and_animations();
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if let Some(window) = self.window.borrow().clone() {
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// window.try_dispatch_event(todo!())?;
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window.draw_if_needed(|renderer| {
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// TODO: Proper synchronization.
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let framebuffer = unsafe { &mut *self.framebuffer.0 };
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// TODO: Try using height to see if it rotates the screen correctly. Might need
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// to swap dimensions elsewhere.
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renderer.render(framebuffer, self.window_size[1] as usize);
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info!("UI rendered.");
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});
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}
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}
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}
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}
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