mirror of
https://github.com/Feliix42/ssd1675.git
synced 2024-11-24 11:46:30 +00:00
Round out Inky pHAT example
This commit is contained in:
Wesley Moore
parent
cf4bf8ce76
commit
70a57e2858
3 changed files with 115 additions and 135 deletions
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@ -15,6 +15,7 @@ version = "0.4.4"
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[dev-dependencies]
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linux-embedded-hal = "0.2.1" # for examples
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profont = "0.1"
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[features]
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default = ["graphics"]
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@ -1,28 +1,29 @@
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// the library for the embedded linux device
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extern crate linux_embedded_hal;
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use linux_embedded_hal::spidev::{self, SpidevOptions};
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use linux_embedded_hal::sysfs_gpio::Direction;
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use linux_embedded_hal::Delay;
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use linux_embedded_hal::{Pin, Spidev};
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// the eink library
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extern crate ssd1675;
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use ssd1675::{Display, DisplayInterface, Dimensions, GraphicDisplay, Color, Rotation};
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use ssd1675::{Display, Dimensions, GraphicDisplay, Color, Rotation};
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// Graphics
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extern crate embedded_graphics;
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use embedded_graphics::coord::Coord;
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use embedded_graphics::fonts::{Font12x16, Font6x8};
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use embedded_graphics::prelude::*;
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use embedded_graphics::primitives::{Circle, Line, Rect};
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use embedded_graphics::Drawing;
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// HAL (Traits)
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extern crate embedded_hal;
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use embedded_hal::prelude::*;
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// Font
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extern crate profont;
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use profont::{ProFont9Point, ProFont12Point, ProFont14Point, ProFont24Point};
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// activate spi, gpio in raspi-config
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// needs to be run with sudo because of some sysfs_gpio permission problems and follow-up timing problems
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use std::process::Command;
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use std::{fs, io};
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use std::time::Duration;
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use std::thread::sleep;
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// Activate SPI, GPIO in raspi-config needs to be run with sudo because of some sysfs_gpio
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// permission problems and follow-up timing problems
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// see https://github.com/rust-embedded/rust-sysfs-gpio/issues/5 and follow-up issues
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const ROWS: u16 = 212;
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@ -68,141 +69,99 @@ fn main() -> Result<(), std::io::Error> {
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let controller = ssd1675::Interface::new(spi, cs, busy, dc, reset);
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// println!("Test all the rotations");
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let dimensions = Dimensions { rows: ROWS, cols: COLS };
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let mut black_buffer = [0u8; ROWS as usize * COLS as usize]; // FIXME: This is using 1 byte per pixel when it only needs to be one bit
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let mut red_buffer = [0u8; ROWS as usize * COLS as usize];
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let mut black_buffer = [0u8; ROWS as usize * COLS as usize / 8];
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let mut red_buffer = [0u8; ROWS as usize * COLS as usize / 8];
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let display = Display::new(controller, dimensions, Rotation::Rotate270);
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let mut display = GraphicDisplay::new(display, &mut black_buffer, &mut red_buffer);
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loop {
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display.reset(&mut delay).expect("error resetting display");
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// display.set_rotation(DisplayRotation::Rotate0);
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println!("reset and initialised");
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println!("Reset and initialised");
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let one_minute = Duration::from_secs(60);
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display.clear(Color::White);
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println!("clear");
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println!("Clear");
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display.draw(
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Font12x16::render_str("Hello Rust")
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ProFont24Point::render_str("Raspberry Pi")
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.with_stroke(Some(Color::Red))
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.with_fill(Some(Color::White))
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.translate(Coord::new(5, 88))
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.translate(Coord::new(1, -4))
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.into_iter(),
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);
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println!("draw");
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// display.set_rotation(DisplayRotation::Rotate90);
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// display.draw(
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// Font::render_str("Rotate 90!")
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// .with_stroke(Some(Color::Black))
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// .with_fill(Some(Color::White))
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// .translate(Coord::new(5, 50))
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// .into_iter(),
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// );
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// display.set_rotation(DisplayRotation::Rotate180);
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// display.draw(
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// Font6x8::render_str("Rotate 180!")
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// .with_stroke(Some(Color::Black))
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// .with_fill(Some(Color::White))
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// .translate(Coord::new(5, 50))
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// .into_iter(),
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// );
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// display.set_rotation(DisplayRotation::Rotate270);
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// display.draw(
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// Font6x8::render_str("Rotate 270!")
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// .with_stroke(Some(Color::Black))
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// .with_fill(Some(Color::White))
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// .translate(Coord::new(5, 50))
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// .into_iter(),
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// );
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// epd4in2.update_frame(&mut spi, &display.buffer()).unwrap();
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// epd4in2
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// .display_frame(&mut spi)
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// .expect("display frame new graphics");
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// delay.delay_ms(5000u16);
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// println!("Now test new graphics with default rotation and some special stuff:");
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// display.clear_buffer(Color::White);
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// draw a analog clock
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if let Ok(cpu_temp) = read_cpu_temp() {
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display.draw(
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Circle::new(Coord::new(32, 32), 30)
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ProFont14Point::render_str("CPU Temp:")
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.with_stroke(Some(Color::Black))
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.with_stroke_width(2)
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.with_fill(Some(Color::White))
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.translate(Coord::new(1, 30))
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.into_iter(),
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);
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// display.draw(
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// Line::new(Coord::new(32, 32), Coord::new(0, 32))
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// .with_stroke(Some(Color::Black))
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// .with_stroke_width(2)
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// .into_iter(),
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// );
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// display.draw(
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// Line::new(Coord::new(32, 32), Coord::new(40, 40))
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// .with_stroke(Some(Color::Black))
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// .with_stroke_width(2)
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// .into_iter(),
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// );
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display.draw(
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Rect::new(Coord::new(32, 32), Coord::new(64, 64))
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.with_fill(Some(Color::Black))
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ProFont12Point::render_str(&format!("{:.1}°C", cpu_temp))
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.with_stroke(Some(Color::Black))
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.with_fill(Some(Color::White))
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.translate(Coord::new(95, 34))
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.into_iter(),
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);
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}
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// // draw white on black background
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// display.draw(
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// Font6x8::render_str("It's working-WoB!")
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// // Using Style here
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// .with_style(Style {
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// fill_color: Some(Color::Black),
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// stroke_color: Some(Color::White),
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// stroke_width: 0u8, // Has no effect on fonts
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// })
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// .translate(Coord::new(175, 250))
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// .into_iter(),
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// );
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if let Some(uptime) = read_uptime() {
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display.draw(
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ProFont9Point::render_str(uptime.trim())
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.with_stroke(Some(Color::Black))
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.with_fill(Some(Color::White))
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.translate(Coord::new(1, 93))
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.into_iter(),
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);
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}
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// // use bigger/different font
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// display.draw(
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// Font12x16::render_str("It's working-BoW!")
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// // Using Style here
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// .with_style(Style {
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// fill_color: Some(Color::White),
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// stroke_color: Some(Color::Black),
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// stroke_width: 0u8, // Has no effect on fonts
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// })
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// .translate(Coord::new(50, 200))
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// .into_iter(),
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// );
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if let Some(uname) = read_uname() {
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display.draw(
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ProFont9Point::render_str(uname.trim())
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.with_stroke(Some(Color::Black))
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.with_fill(Some(Color::White))
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.translate(Coord::new(1, 84))
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.into_iter(),
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);
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}
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// // a moving `Hello World!`
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// let limit = 10;
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// for i in 0..limit {
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// println!("Moving Hello World. Loop {} from {}", (i + 1), limit);
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// display.draw(
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// Font6x8::render_str(" Hello World! ")
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// .with_style(Style {
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// fill_color: Some(Color::White),
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// stroke_color: Some(Color::Black),
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// stroke_width: 0u8, // Has no effect on fonts
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// })
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// .translate(Coord::new(5 + i * 12, 50))
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// .into_iter(),
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// );
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// epd4in2.update_frame(&mut spi, &display.buffer()).unwrap();
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// epd4in2
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// .display_frame(&mut spi)
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// .expect("display frame new graphics");
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// delay.delay_ms(1_000u16);
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// }
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display.update(&mut delay).expect("error updating display");
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println!("update...");
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println!("Update...");
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println!("Finished - going to sleep");
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display.deep_sleep()
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display.deep_sleep()?;
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sleep(one_minute);
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}
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}
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fn read_cpu_temp() -> Result<f64, io::Error> {
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fs::read_to_string("/sys/class/thermal/thermal_zone0/temp")?
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.trim()
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.parse::<i32>()
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.map(|temp| temp as f64 / 1000.)
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.map_err(|err| io::Error::new(io::ErrorKind::Other, err))
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}
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fn read_uptime() -> Option<String> {
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Command::new("uptime").arg("-p").output().ok().and_then(|output| {
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if output.status.success() {
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String::from_utf8(output.stdout).ok()
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} else {
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None
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}
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})
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}
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fn read_uname() -> Option<String> {
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Command::new("uname").arg("-smr").output().ok().and_then(|output| {
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if output.status.success() {
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String::from_utf8(output.stdout).ok()
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} else {
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None
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}
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})
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}
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@ -37,7 +37,6 @@ impl<'a, I> GraphicDisplay<'a, I> where I: DisplayInterface {
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}
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fn set_pixel(&mut self, x: u32, y: u32, color: Color) {
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// Give us index inside the buffer and the bit-position in that u8 which needs to be changed
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let (index, bit) = rotation(x, y, self.cols() as u32, self.rows() as u32, self.rotation());
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let index = index as usize;
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@ -93,6 +92,23 @@ fn rotation(x: u32, y: u32, width: u32, height: u32, rotation: Rotation) -> (u32
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}
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}
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fn outside_display(x: u32, y: u32, width: u32, height: u32, rotation: Rotation) -> bool {
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match rotation {
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Rotation::Rotate0 | Rotation::Rotate180 => {
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if x >= width || y >= height {
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return true;
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}
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}
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Rotation::Rotate90 | Rotation::Rotate270 => {
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if y >= width || x >= height {
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return true;
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}
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}
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}
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false
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}
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#[cfg(feature = "graphics")]
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extern crate embedded_graphics;
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#[cfg(feature = "graphics")]
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@ -108,6 +124,10 @@ where
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T: Iterator<Item = Pixel<Color>>,
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{
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for Pixel(UnsignedCoord(x, y), colour) in item_pixels {
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if outside_display(x, y, self.cols() as u32, self.rows() as u32, self.rotation()) {
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continue;
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}
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self.set_pixel(x, y, colour);
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}
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}
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