WOrking on partial refresh

epd-waveshare/src/epd3in7/mod.rs

@@ -260,29 +260,12 @@ where
         width: u32,
         height: u32,
     ) -> Result<(), SPI::Error> {
-        let i = &mut self.interface;
+        self.wait_until_idle(spi, delay)?;
-        i.cmd(spi, Command::SetRamXAddressStartEndPosition);
+        self.set_ram_area(spi, delay, x, y, x + width, y + height)?;
-        i.data(spi, &[(x >> 8) as u8])?;
+        self.set_ram_counter(spi, delay, x, y)?;
-        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.interface
+            .cmd_with_data(spi, Command::WriteRam, buffer)?;
         Ok(())
     }
 

src/apps/maze_game.rs

@@ -27,7 +27,7 @@ impl MazeGame {
 impl MazeGame {
     const X_OFFSET: i32 = 4;
     const Y_OFFSET: i32 = 4;
-    const CELL_SIZE: i32 = 6;
+    const CELL_SIZE: i32 = 10;
 
     fn player_pos(&self) -> (u16, u16) {
         (self.player.x as u16, self.player.y as u16)
@@ -72,7 +72,7 @@ impl MazeGame {
                 (self.player.x * Self::CELL_SIZE) + Self::X_OFFSET + 1,
                 (self.player.y * Self::CELL_SIZE) + Self::Y_OFFSET + 1,
             ),
-            Size::new(4, 4),
+            Size::new((Self::CELL_SIZE - 2) as u32, (Self::CELL_SIZE - 2) as u32),
         )
         .draw_styled(&player_style, &mut ctx.epaper.display)
         .unwrap();