Fast update done

epd-waveshare/src/epd3in7/constants.rs

@@ -15,6 +15,7 @@ pub(crate) const LUT_1GRAY_GC: [u8; 105] = [
 
 // This LUT updates only the pixels that have changed.
 pub(crate) const LUT_1GRAY_DU: [u8; 105] = [
+    /*
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //1
     0x01, 0x2A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //2
     0x0A, 0x55, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //3
@@ -25,5 +26,18 @@ pub(crate) const LUT_1GRAY_DU: [u8; 105] = [
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //8
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //9
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //10
+    0x22, 0x22, 0x22, 0x22, 0x22,*/
+    //
+    //
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //1
+    0x01, 0x2A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 2
+    0x0A, 0x55, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //3
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 4
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //5
+    0x00, 0x00, 0x05, 0x05, 0x00, 0x05, 0x03, 0x05, 0x05, 0x00, // 6
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //7
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //8
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //9
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, //10
     0x22, 0x22, 0x22, 0x22, 0x22,
 ];

epd-waveshare/src/epd3in7/mod.rs

@@ -143,6 +143,7 @@ where
     }
 }
 
+#[allow(dead_code)]
 impl<SPI, BUSY, DC, RST, DELAY> EPD3in7<SPI, BUSY, DC, RST, DELAY>
 where
     SPI: SpiDevice,
@@ -320,41 +321,12 @@ where
         spi: &mut SPI,
         delay: &mut DELAY,
         buffer: &[u8],
-        x: u32,
+        start_x: u32,
-        y: u32,
+        start_y: u32,
         width: u32,
         height: u32,
     ) -> Result<(), SPI::Error> {
-        let i = &mut self.interface;
+        // broken beyond repart
-        i.cmd(spi, Command::SetRamXAddressStartEndPosition);
-        i.data(spi, &[(x >> 8) as u8])?;
-        let tmp = x & 0xf8;
-        i.data(spi, &[tmp as u8])?; // x should be the multiple of 8, the last 3 bit will always be ignored
-        let tmp = tmp + width - 1;
-        i.data(spi, &[(tmp >> 8) as u8])?;
-        i.data(spi, &[(tmp | 0x07) as u8])?;
-
-        i.cmd(spi, Command::SetRamYAddressStartEndPosition);
-        i.data(spi, &[(y >> 8) as u8])?;
-        i.data(spi, &[y as u8])?;
-        i.data(spi, &[((y + height - 1) >> 8) as u8])?;
-        i.data(spi, &[(y + height - 1) as u8])?;
-
-        i.cmd_with_data(spi, Command::WriteRam, buffer);
-
-        //load lut 2
-        i.cmd_with_data(spi, Command::WriteLutRegister, &LUT_1GRAY_DU);
-
-        i.cmd(spi, Command::DisplayUpdateSequence);
-        i.wait_until_idle(delay, IS_BUSY_LOW);
-        /*
-        self.wait_until_idle(spi, delay)?;
-        self.set_ram_area(spi, delay, x, y, x + width, y + height)?;
-        self.set_ram_counter(spi, delay, x, y)?;
-
-        self.interface
-            .cmd_with_data(spi, Command::WriteRam, buffer)?;
-        */
         Ok(())
     }
 
@@ -407,7 +379,7 @@ where
     }
 
     fn wait_until_idle(&mut self, _spi: &mut SPI, delay: &mut DELAY) -> Result<(), SPI::Error> {
-        self.interface.wait_until_idle(delay, IS_BUSY_LOW);
+        self.interface.wait_until_idle(delay, IS_BUSY_LOW).unwrap();
         Ok(())
     }
 }

src/apps/maze_game.rs

@@ -116,27 +116,33 @@ impl App for MazeGame {
         self.draw_walls(ctx);
         self.draw_player(ctx);*/
         // FIXME: Partial update
-        let Some(old) = &self.old_player else {
+        let Some(_old) = &self.old_player else {
             self.draw_walls(ctx);
             self.draw_player(ctx);
             return;
         };
-        ctx.epaper.partial_update(
+
-            *old,
+        ctx.epaper.fast_update();
-            Size {
+        ctx.epaper.clear_frame();
-                width: 1,
+        self.draw_walls(ctx);
-                height: 1,
+        self.draw_player(ctx);
-            },
+        ctx.epaper.full_update();
-            &[Color::White as u8],
+        // ctx.epaper.partial_update(
-        );
+        //     *old,
-        ctx.epaper.partial_update(
+        //     Size {
-            self.player,
+        //         width: 1,
-            Size {
+        //         height: 1,
-                width: 1,
+        //     },
-                height: 1,
+        //     &[Color::White as u8],
-            },
+        // );
-            &[Color::Black as u8],
+        // ctx.epaper.partial_update(
-        );
+        //     self.player,
+        //     Size {
+        //         width: 1,
+        //         height: 1,
+        //     },
+        //     &[Color::Black as u8],
+        // );
     }
 
     fn update(&mut self, ctx: &mut Context) -> Option<Action> {

src/apps/mod.rs

@@ -39,6 +39,7 @@ impl Default for Application {
 impl Application {
     pub fn draw(&self, ctx: &mut Context, full: bool) {
         if full {
+            ctx.epaper.slow_update();
             ctx.epaper.full_erase();
         }
         match self {

src/epaper.rs

@@ -142,6 +142,17 @@ impl<'d> Epaper<'d> {
         log::info!("Clearing display DONE");
     }
 
+    pub fn fast_update(&mut self) {
+        self.driver
+            .set_lut(&mut self.spi, &mut self.delay, Some(RefreshLut::Quick))
+            .unwrap();
+    }
+    pub fn slow_update(&mut self) {
+        self.driver
+            .set_lut(&mut self.spi, &mut self.delay, Some(RefreshLut::Full))
+            .unwrap();
+    }
+
     pub fn print_welcome(&mut self) {
         // draw white on black background
         let style = MonoTextStyleBuilder::new()
@@ -183,4 +194,15 @@ impl<'d> Epaper<'d> {
             size.height,
         );
     }
+    pub fn partial_update_buffer(&mut self, pos: Point, size: Size) {
+        let _ = self.driver.update_partial_frame(
+            &mut self.spi,
+            &mut self.delay,
+            self.display.buffer(),
+            pos.x as u32,
+            pos.y as u32,
+            size.width,
+            size.height,
+        );
+    }
 }

src/main.rs

@@ -94,7 +94,7 @@ fn main() -> ! {
     loop {
         ctx.button_pressed = kbd.pressed();
         if ctx.button_pressed.is_some() {
-            ctx.epaper.clear_frame();
+            // ctx.epaper.clear_frame();
             log::info!("Wake up!");
             app.update_and_draw(&mut ctx, &mut trng);
         }