53 lines
1.6 KiB
Rust
53 lines
1.6 KiB
Rust
use image::GenericImageView;
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use swbuf::GraphicsContext;
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use winit::event::{Event, WindowEvent};
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use winit::event_loop::{ControlFlow, EventLoop};
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use winit::window::WindowBuilder;
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fn main() {
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//see fruit.jpg.license for the license of fruit.jpg
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let fruit = image::load_from_memory(include_bytes!("fruit.jpg")).unwrap();
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let buffer = fruit.pixels().map(|(_x, _y, pixel)|{
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let red = pixel.0[0] as u32;
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let green = pixel.0[1] as u32;
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let blue = pixel.0[2] as u32;
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blue | (green << 8) | (red << 16)
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}).collect::<Vec<_>>();
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let event_loop = EventLoop::new();
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let window = WindowBuilder::new().build(&event_loop).unwrap();
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#[cfg(target_arch = "wasm32")]
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{
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use winit::platform::web::WindowExtWebSys;
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web_sys::window()
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.unwrap()
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.document()
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.unwrap()
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.body()
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.unwrap()
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.append_child(&window.canvas())
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.unwrap();
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}
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let mut graphics_context = unsafe { GraphicsContext::new(&window, &window) }.unwrap();
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event_loop.run(move |event, _, control_flow| {
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*control_flow = ControlFlow::Wait;
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match event {
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Event::RedrawRequested(window_id) if window_id == window.id() => {
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graphics_context.set_buffer(&buffer, fruit.width() as u16, fruit.height() as u16);
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}
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Event::WindowEvent {
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event: WindowEvent::CloseRequested,
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window_id,
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} if window_id == window.id() => {
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*control_flow = ControlFlow::Exit;
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}
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_ => {}
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}
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});
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}
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