basic i/o

src/main.rs

@@ -0,0 +1,78 @@
+mod rgba;
+mod screen;
+
+use embedded_graphics::{prelude::*, primitives::{PrimitiveStyle, Rectangle}};
+use evdev::{AbsoluteAxisCode, Device, EventSummary, KeyCode};
+use screen::Screen;
+use rgba::Rgba;
+
+
+fn main() {
+    let mut screen = Screen::new();
+
+    let red = (255, 0, 0, 255);
+    let green = (0, 255, 0, 255);
+    let blue = (0, 0, 255, 255);
+
+    // /dev/input/event4:	silead_ts
+
+
+    Rectangle::new(Point::new(0, 0), Size::new(screen.width(), 1))
+        .into_styled(PrimitiveStyle::with_fill(Rgba::from(red)))
+        .draw(&mut screen)
+        .ok();
+
+    Rectangle::new(Point::new(0, 1), Size::new(screen.width(), 1))
+        .into_styled(PrimitiveStyle::with_fill(Rgba::from(green)))
+        .draw(&mut screen)
+        .ok();
+
+    Rectangle::new(Point::new(0, 2), Size::new(screen.width(), 1))
+        .into_styled(PrimitiveStyle::with_fill(Rgba::from(blue)))
+        .draw(&mut screen)
+        .ok();
+
+    let Ok(mut device) = Device::open("/dev/input/event4") else {
+        panic!("No TS");
+    };
+
+    // device.set_nonblocking(true).unwrap();
+
+    let mut x = -1;
+    let mut y = -1;
+
+    loop {
+
+
+
+        // println!("dont block");
+        let Ok(events) = device.fetch_events() else {
+            continue;
+        };
+
+        for event in events {
+            match event.destructure(){
+                EventSummary::AbsoluteAxis(_, AbsoluteAxisCode::ABS_X, value) => {
+                    x = (((value - 13) as f32 / 882.) * (screen.width() as f32)) as i32;
+                },
+                EventSummary::AbsoluteAxis(_, AbsoluteAxisCode::ABS_Y, value) => {
+                    y = (((value - 13) as f32 / 624.) * (screen.height() as f32)) as i32;
+                },
+                EventSummary::Key(_, KeyCode::BTN_TOUCH, value) => {
+                    // if value is 1, touch is started
+                    // if value is 0, touch ended
+                    println!("touch: {}", value)
+                },
+                _ => {}
+            }
+        }
+
+        println!("{}x{}", x, y);
+
+        screen.clear(Rgba::from((0,0,0,255))).ok();
+        Rectangle::new(Point::new(x - 50, y - 50), Size::new(100, 100))
+            .into_styled(PrimitiveStyle::with_fill(Rgba::from(blue)))
+            .draw(&mut screen)
+            .ok();
+    }
+}