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Merge pull request #1 from wezm/builder

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Builder for constructing Display
This commit is contained in:
Wesley Moore 2018-12-26 08:45:42 +11:00 committed by GitHub
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9 changed files with 365 additions and 197 deletions
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4
README.md
View file

@ -12,8 +12,8 @@ controller, for use with [embedded-hal].
## Description
This driver is intended to work on embedded platforms using the `embedded-hal`
trait library. It is `no_std` compatible, only uses safe Rust, and does not
require an allocator. It supports the 4-wire SPI interface.
trait library. It is `no_std` compatible, builds on stable Rust, and only uses
safe Rust. It supports the 4-wire SPI interface.
## Tested Devices

64
examples/raspberry_pi_inky_phat.rs
View file

@ -5,7 +5,7 @@ use linux_embedded_hal::Delay;
use linux_embedded_hal::{Pin, Spidev};
extern crate ssd1675;
use ssd1675::{Display, Dimensions, GraphicDisplay, Color, Rotation};
use ssd1675::{Builder, Color, Dimensions, Display, GraphicDisplay, Rotation};
// Graphics
extern crate embedded_graphics;
@ -15,12 +15,12 @@ use embedded_graphics::Drawing;
// Font
extern crate profont;
use profont::{ProFont9Point, ProFont12Point, ProFont14Point, ProFont24Point};
use profont::{ProFont12Point, ProFont14Point, ProFont24Point, ProFont9Point};
use std::process::Command;
use std::{fs, io};
use std::time::Duration;
use std::thread::sleep;
use std::time::Duration;
use std::{fs, io};
// Activate SPI, GPIO in raspi-config needs to be run with sudo because of some sysfs_gpio
// permission problems and follow-up timing problems
@ -29,6 +29,27 @@ use std::thread::sleep;
const ROWS: u16 = 212;
const COLS: u8 = 104;
#[rustfmt::skip]
const LUT: [u8; 70] = [
// Phase 0 Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 Phase 6
// A B C D A B C D A B C D A B C D A B C D A B C D A B C D
0b01001000, 0b10100000, 0b00010000, 0b00010000, 0b00010011, 0b00000000, 0b00000000, // LUT0 - Black
0b01001000, 0b10100000, 0b10000000, 0b00000000, 0b00000011, 0b00000000, 0b00000000, // LUTT1 - White
0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000, // IGNORE
0b01001000, 0b10100101, 0b00000000, 0b10111011, 0b00000000, 0b00000000, 0b00000000, // LUT3 - Red
0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000, // LUT4 - VCOM
// Duration | Repeat
// A B C D |
64, 12, 32, 12, 6, // 0 Flash
16, 8, 4, 4, 6, // 1 clear
4, 8, 8, 16, 16, // 2 bring in the black
2, 2, 2, 64, 32, // 3 time for red
2, 2, 2, 2, 2, // 4 final black sharpen phase
0, 0, 0, 0, 0, // 5
0, 0, 0, 0, 0 // 6
];
fn main() -> Result<(), std::io::Error> {
// Configure SPI
let mut spi = Spidev::open("/dev/spidev0.0").expect("SPI device");
@ -39,8 +60,8 @@ fn main() -> Result<(), std::io::Error> {
.build();
spi.configure(&options).expect("SPI configuration");
// https://pinout.xyz/pinout/inky_phat#
// Configure Digital I/O Pin to be used as Chip Select for SPI
// https://pinout.xyz/pinout/inky_phat
// Configure Digital I/O Pins
let cs = Pin::new(8); // BCM8
cs.export().expect("cs export");
while !cs.is_exported() {}
@ -61,20 +82,33 @@ fn main() -> Result<(), std::io::Error> {
let reset = Pin::new(27); // BCM27
reset.export().expect("reset export");
while !reset.is_exported() {}
reset.set_direction(Direction::Out).expect("reset Direction");
reset
.set_direction(Direction::Out)
.expect("reset Direction");
reset.set_value(1).expect("reset Value set to 1");
println!("Pins configured");
// Initialise display controller
let mut delay = Delay {};
let controller = ssd1675::Interface::new(spi, cs, busy, dc, reset);
let dimensions = Dimensions { rows: ROWS, cols: COLS };
let mut black_buffer = [0u8; ROWS as usize * COLS as usize / 8];
let mut red_buffer = [0u8; ROWS as usize * COLS as usize / 8];
let display = Display::new(controller, dimensions, Rotation::Rotate270);
let config = Builder::new()
.dimensions(Dimensions {
rows: ROWS,
cols: COLS,
})
.rotation(Rotation::Rotate270)
.lut(&LUT)
.build()
.expect("invalid configuration");
let display = Display::new(controller, config);
let mut display = GraphicDisplay::new(display, &mut black_buffer, &mut red_buffer);
// Main loop. Displays CPU temperature, uname, and uptime every minute with a red Raspberry Pi
// header.
loop {
display.reset(&mut delay).expect("error resetting display");
println!("Reset and initialised");
@ -147,7 +181,11 @@ fn read_cpu_temp() -> Result<f64, io::Error> {
}
fn read_uptime() -> Option<String> {
Command::new("uptime").arg("-p").output().ok().and_then(|output| {
Command::new("uptime")
.arg("-p")
.output()
.ok()
.and_then(|output| {
if output.status.success() {
String::from_utf8(output.stdout).ok()
} else {
@ -157,7 +195,11 @@ fn read_uptime() -> Option<String> {
}
fn read_uname() -> Option<String> {
Command::new("uname").arg("-smr").output().ok().and_then(|output| {
Command::new("uname")
.arg("-smr")
.output()
.ok()
.and_then(|output| {
if output.status.success() {
String::from_utf8(output.stdout).ok()
} else {

2
src/color.rs
View file

@ -18,7 +18,7 @@ impl From<u8> for Color {
0 => Color::Black,
1 => Color::White,
2 => Color::Red,
_ => panic!("invalid color value")
_ => panic!("invalid color value"),
}
}
}

88
src/command.rs
View file

@ -4,7 +4,10 @@ use interface::DisplayInterface;
const MAX_GATES: u16 = 296;
const MAX_DUMMY_LINE_PERIOD: u8 = 127;
trait Contains<C> where C: Copy + PartialOrd {
trait Contains<C>
where
C: Copy + PartialOrd,
{
fn contains(&self, item: C) -> bool;
}
@ -50,6 +53,7 @@ pub enum DeepSleepMode {
DiscardRAM,
}
#[derive(Clone, Copy)]
pub enum Command {
/// Set the MUX of gate lines, scanning sequence and direction
/// 0: MAX gate lines
@ -207,21 +211,17 @@ macro_rules! pack {
}
impl Command {
pub(crate) fn execute<I: DisplayInterface>(self, interface: &mut I) -> Result<(), I::Error> {
pub(crate) fn execute<I: DisplayInterface>(&self, interface: &mut I) -> Result<(), I::Error> {
use self::Command::*;
let mut buf = [0u8; 4];
let (command, data) = match self {
let (command, data) = match *self {
DriverOutputControl(gate_lines, scanning_seq_and_dir) => {
let [upper, lower] = u16_as_u8(gate_lines);
pack!(buf, 0x01, [lower, upper, scanning_seq_and_dir])
}
GateDrivingVoltage(voltages) => {
pack!(buf, 0x03, [voltages])
}
SourceDrivingVoltage(vsh1, vsh2, vsl) => {
pack!(buf, 0x04, [vsh1, vsh2, vsl])
}
GateDrivingVoltage(voltages) => pack!(buf, 0x03, [voltages]),
SourceDrivingVoltage(vsh1, vsh2, vsl) => pack!(buf, 0x04, [vsh1, vsh2, vsl]),
BoosterEnable(phase1, phase2, phase3, duration) => {
pack!(buf, 0x0C, [phase1, phase2, phase3, duration])
}
@ -253,9 +253,7 @@ impl Command {
pack!(buf, 0x11, [axis | mode])
}
SoftReset => {
pack!(buf, 0x12, [])
}
SoftReset => pack!(buf, 0x12, []),
// TemperatatSensorSelection(TemperatureSensor) => {
// }
// WriteTemperatureSensor(u16) => {
@ -264,34 +262,22 @@ impl Command {
// }
// WriteExternalTemperatureSensor(u8, u8, u8) => {
// }
UpdateDisplay => {
pack!(buf, 0x20, [])
}
UpdateDisplay => pack!(buf, 0x20, []),
// UpdateDisplayOption1(RamOption, RamOption) => {
// }
UpdateDisplayOption2(value) => {
pack!(buf, 0x22, [value])
}
UpdateDisplayOption2(value) => pack!(buf, 0x22, [value]),
// EnterVCOMSensing => {
// }
// VCOMSenseDuration(u8) => {
// }
WriteVCOM(value) => {
pack!(buf, 0x2C, [value])
}
WriteVCOM(value) => pack!(buf, 0x2C, [value]),
DummyLinePeriod(period) => {
debug_assert!(Contains::contains(&(0..=MAX_DUMMY_LINE_PERIOD), period));
pack!(buf, 0x3A, [period])
}
GateLineWidth(tgate) => {
pack!(buf, 0x3B, [tgate])
}
BorderWaveform(border_waveform) => {
pack!(buf, 0x3C, [border_waveform])
}
StartEndXPosition(start, end) => {
pack!(buf, 0x44, [start, end])
}
GateLineWidth(tgate) => pack!(buf, 0x3B, [tgate]),
BorderWaveform(border_waveform) => pack!(buf, 0x3C, [border_waveform]),
StartEndXPosition(start, end) => pack!(buf, 0x44, [start, end]),
StartEndYPosition(start, end) => {
let [start_upper, start_lower] = u16_as_u8(start);
let [end_upper, end_lower] = u16_as_u8(end);
@ -301,19 +287,11 @@ impl Command {
// }
// AutoWriteBlackPattern(u8) => {
// }
XAddress(address) => {
pack!(buf, 0x4E, [address])
}
YAddress(address) => {
pack!(buf, 0x4F, [address])
}
AnalogBlockControl(value) => {
pack!(buf, 0x74, [value])
}
DigitalBlockControl(value) => {
pack!(buf, 0x7E, [value])
}
_ => unimplemented!()
XAddress(address) => pack!(buf, 0x4E, [address]),
YAddress(address) => pack!(buf, 0x4F, [address]),
AnalogBlockControl(value) => pack!(buf, 0x74, [value]),
DigitalBlockControl(value) => pack!(buf, 0x7E, [value]),
_ => unimplemented!(),
};
interface.send_command(command)?;
@ -326,19 +304,13 @@ impl Command {
}
impl<'buf> BufCommand<'buf> {
pub(crate) fn execute<I: DisplayInterface>(self, interface: &mut I) -> Result<(), I::Error> {
pub(crate) fn execute<I: DisplayInterface>(&self, interface: &mut I) -> Result<(), I::Error> {
use self::BufCommand::*;
let (command, data) = match self {
WriteBlackData(buffer) => {
(0x24, buffer)
}
WriteRedData(buffer) => {
(0x26, buffer)
}
WriteLUT(buffer) => {
(0x32, buffer)
}
WriteBlackData(buffer) => (0x24, buffer),
WriteRedData(buffer) => (0x26, buffer),
WriteLUT(buffer) => (0x32, buffer),
};
interface.send_command(command)?;
@ -350,13 +322,19 @@ impl<'buf> BufCommand<'buf> {
}
}
impl<C> Contains<C> for core::ops::Range<C> where C: Copy + PartialOrd {
impl<C> Contains<C> for core::ops::Range<C>
where
C: Copy + PartialOrd,
{
fn contains(&self, item: C) -> bool {
item >= self.start && item < self.end
}
}
impl<C> Contains<C> for core::ops::RangeInclusive<C> where C: Copy + PartialOrd {
impl<C> Contains<C> for core::ops::RangeInclusive<C>
where
C: Copy + PartialOrd,
{
fn contains(&self, item: C) -> bool {
item >= *self.start() && item <= *self.end()
}

110
src/config.rs Normal file
View file

@ -0,0 +1,110 @@
use command::{BufCommand, Command, DataEntryMode, IncrementAxis};
use display::{Dimensions, Rotation};
pub struct Builder<'a> {
dummy_line_period: Command,
gate_line_width: Command,
write_vcom: Command,
write_lut: Option<BufCommand<'a>>,
data_entry_mode: Command,
dimensions: Option<Dimensions>,
rotation: Rotation,
}
#[derive(Debug)]
pub struct BuilderError {}
pub struct Config<'a> {
pub(crate) dummy_line_period: Command,
pub(crate) gate_line_width: Command,
pub(crate) write_vcom: Command,
pub(crate) write_lut: Option<BufCommand<'a>>,
pub(crate) data_entry_mode: Command,
pub(crate) dimensions: Dimensions,
pub(crate) rotation: Rotation,
}
impl<'a> Default for Builder<'a> {
fn default() -> Self {
Builder {
dummy_line_period: Command::DummyLinePeriod(0x07),
gate_line_width: Command::GateLineWidth(0x04),
write_vcom: Command::WriteVCOM(0x3C),
write_lut: None,
data_entry_mode: Command::DataEntryMode(
DataEntryMode::IncrementYIncrementX,
IncrementAxis::Horizontal,
),
dimensions: None,
rotation: Rotation::default(),
}
}
}
impl<'a> Builder<'a> {
pub fn new() -> Self {
Self::default()
}
pub fn dummy_line_period(self, dummy_line_period: u8) -> Self {
Self {
dummy_line_period: Command::DummyLinePeriod(dummy_line_period),
..self
}
}
pub fn gate_line_width(self, gate_line_width: u8) -> Self {
Self {
gate_line_width: Command::GateLineWidth(gate_line_width),
..self
}
}
pub fn vcom(self, value: u8) -> Self {
Self {
write_vcom: Command::WriteVCOM(value),
..self
}
}
pub fn lut(self, lut: &'a [u8]) -> Self {
Self {
write_lut: Some(BufCommand::WriteLUT(lut)),
..self
}
}
pub fn data_entry_mode(
self,
data_entry_mode: DataEntryMode,
increment_axis: IncrementAxis,
) -> Self {
Self {
data_entry_mode: Command::DataEntryMode(data_entry_mode, increment_axis),
..self
}
}
pub fn dimensions(self, dimensions: Dimensions) -> Self {
Self {
dimensions: Some(dimensions),
..self
}
}
pub fn rotation(self, rotation: Rotation) -> Self {
Self { rotation, ..self }
}
pub fn build(self) -> Result<Config<'a>, BuilderError> {
Ok(Config {
dummy_line_period: self.dummy_line_period,
gate_line_width: self.gate_line_width,
write_vcom: self.write_vcom,
write_lut: self.write_lut,
data_entry_mode: self.data_entry_mode,
dimensions: self.dimensions.ok_or_else(|| BuilderError {})?,
rotation: self.rotation,
})
}
}

84
src/display.rs
View file

@ -1,6 +1,7 @@
use hal;
use command::{BufCommand, Command, DataEntryMode, DeepSleepMode, IncrementAxis};
use config::Config;
use interface::DisplayInterface;
// Max display resolution is 160x296
@ -11,8 +12,6 @@ const MAX_GATE_OUTPUTS: usize = 296;
const ANALOG_BLOCK_CONTROL_MAGIC: u8 = 0x54;
const DIGITAL_BLOCK_CONTROL_MAGIC: u8 = 0x3B;
struct Config {}
pub struct Dimensions {
pub rows: u16,
pub cols: u8,
@ -32,57 +31,74 @@ impl Default for Rotation {
}
}
pub struct Display<I> where I: DisplayInterface {
pub struct Display<'a, I>
where
I: DisplayInterface,
{
interface: I,
dimensions: Dimensions,
rotation: Rotation,
config: Config<'a>,
}
impl<I> Display<I> where I: DisplayInterface {
pub fn new(interface: I, dimensions: Dimensions, rotation: Rotation) -> Self {
impl<'a, I> Display<'a, I>
where
I: DisplayInterface,
{
pub fn new(interface: I, config: Config<'a>) -> Self {
// TODO: Assert dimensions are evenly divisible by 8
Self { interface, dimensions, rotation }
Self { interface, config }
}
/// Perform a hardware reset followed by software reset
pub fn reset<D: hal::blocking::delay::DelayMs<u8>>(&mut self, delay: &mut D) -> Result<(), I::Error> {
pub fn reset<D: hal::blocking::delay::DelayMs<u8>>(
&mut self,
delay: &mut D,
) -> Result<(), I::Error> {
self.interface.reset(delay);
Command::SoftReset.execute(&mut self.interface)?;
self.interface.busy_wait();
self.init(Config {})
self.init()
}
/// Initialise the controller according to Section 9: Typical Operating Sequence
/// from the data sheet
fn init(&mut self, config: Config) -> Result<(), I::Error> {
fn init(&mut self) -> Result<(), I::Error> {
Command::AnalogBlockControl(ANALOG_BLOCK_CONTROL_MAGIC).execute(&mut self.interface)?;
Command::DigitalBlockControl(DIGITAL_BLOCK_CONTROL_MAGIC).execute(&mut self.interface)?;
Command::DriverOutputControl(self.dimensions.rows, 0x00).execute(&mut self.interface)?;
Command::DriverOutputControl(self.config.dimensions.rows, 0x00)
.execute(&mut self.interface)?;
Command::DummyLinePeriod(0x07).execute(&mut self.interface)?;
Command::GateLineWidth(0x04).execute(&mut self.interface)?;
self.config.dummy_line_period.execute(&mut self.interface)?;
self.config.gate_line_width.execute(&mut self.interface)?;
// Command::GateDrivingVoltage(0b10000 | 0b0001);
// Command::SourceDrivingVoltage(0x2D, 0xB2, 0x22).execute(&mut self.interface)?;
Command::WriteVCOM(0x3C).execute(&mut self.interface)?;
self.config.write_vcom.execute(&mut self.interface)?;
// POR is HiZ. Need pull from config
// Command::BorderWaveform(u8).execute(&mut self.interface)?;
BufCommand::WriteLUT(&LUT_RED).execute(&mut self.interface)?;
// BufCommand::WriteLUT(&LUT_RED).execute(&mut self.interface)?;
if let Some(ref write_lut) = self.config.write_lut {
write_lut.execute(&mut self.interface)?;
}
Command::DataEntryMode(DataEntryMode::IncrementYIncrementX, IncrementAxis::Horizontal).execute(&mut self.interface)?;
self.config.data_entry_mode.execute(&mut self.interface)?;
let end = self.dimensions.cols / 8 - 1;
let end = self.config.dimensions.cols / 8 - 1;
Command::StartEndXPosition(0, end).execute(&mut self.interface)?;
Command::StartEndYPosition(0, self.dimensions.rows).execute(&mut self.interface)?;
Command::StartEndYPosition(0, self.config.dimensions.rows).execute(&mut self.interface)?;
Ok(())
}
pub fn update<D: hal::blocking::delay::DelayMs<u8>>(&mut self, black: &[u8], red: &[u8], delay: &mut D) -> Result<(), I::Error> {
pub fn update<D: hal::blocking::delay::DelayMs<u8>>(
&mut self,
black: &[u8],
red: &[u8],
delay: &mut D,
) -> Result<(), I::Error> {
// Write the B/W RAM
let buf_limit = ((self.rows() * self.cols() as u16) as f32 / 8.).ceil() as usize;
Command::XAddress(0).execute(&mut self.interface)?;
@ -100,7 +116,7 @@ impl<I> Display<I> where I: DisplayInterface {
delay.delay_ms(50);
// TODO: We don't really need to wait here... the program can go off and do other things
// and only busy wait if it wants to talk to the display again. Could possibly treat
// the interface like a smart pointer in which "acquiring" it would wait until it's not
// the interface like a smart pointer in which deref would wait until it's not
// busy.
self.interface.busy_wait();
@ -112,34 +128,14 @@ impl<I> Display<I> where I: DisplayInterface {
}
pub fn rows(&self) -> u16 {
self.dimensions.rows
self.config.dimensions.rows
}
pub fn cols(&self) -> u8 {
self.dimensions.cols
self.config.dimensions.cols
}
pub fn rotation(&self) -> Rotation {
self.rotation
self.config.rotation
}
}
const LUT_RED: [u8; 70] = [
// Phase 0 Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 Phase 6
// A B C D A B C D A B C D A B C D A B C D A B C D A B C D
0b01001000, 0b10100000, 0b00010000, 0b00010000, 0b00010011, 0b00000000, 0b00000000, // LUT0 - Black
0b01001000, 0b10100000, 0b10000000, 0b00000000, 0b00000011, 0b00000000, 0b00000000, // LUTT1 - White
0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000, // IGNORE
0b01001000, 0b10100101, 0b00000000, 0b10111011, 0b00000000, 0b00000000, 0b00000000, // LUT3 - Red
0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000, 0b00000000, // LUT4 - VCOM
// Duration | Repeat
// A B C D |
64, 12, 32, 12, 6, // 0 Flash
16, 8, 4, 4, 6, // 1 clear
4, 8, 8, 16, 16, // 2 bring in the black
2, 2, 2, 64, 32, // 3 time for red
2, 2, 2, 2, 2, // 4 final black sharpen phase
0, 0, 0, 0, 0, // 5
0, 0, 0, 0, 0 // 6
];

143
src/graphics.rs
View file

@ -1,22 +1,40 @@
use hal;
use color::Color;
use display::{Display, Rotation};
use interface::DisplayInterface;
use core::ops::{Deref, DerefMut};
use display::{Display, Rotation};
use hal;
use interface::DisplayInterface;
pub struct GraphicDisplay<'a, I> where I: DisplayInterface {
display: Display<I>,
pub struct GraphicDisplay<'a, I>
where
I: DisplayInterface,
{
display: Display<'a, I>,
black_buffer: &'a mut [u8],
red_buffer: &'a mut [u8],
}
impl<'a, I> GraphicDisplay<'a, I> where I: DisplayInterface {
pub fn new(display: Display<I>, black_buffer: &'a mut [u8], red_buffer: &'a mut [u8]) -> Self {
GraphicDisplay { display, black_buffer, red_buffer }
impl<'a, I> GraphicDisplay<'a, I>
where
I: DisplayInterface,
{
pub fn new(
display: Display<'a, I>,
black_buffer: &'a mut [u8],
red_buffer: &'a mut [u8],
) -> Self {
GraphicDisplay {
display,
black_buffer,
red_buffer,
}
}
pub fn update<D: hal::blocking::delay::DelayMs<u8>>(&mut self, delay: &mut D) -> Result<(), I::Error> {
self.display.update(self.black_buffer, self.red_buffer, delay)
pub fn update<D: hal::blocking::delay::DelayMs<u8>>(
&mut self,
delay: &mut D,
) -> Result<(), I::Error> {
self.display
.update(self.black_buffer, self.red_buffer, delay)
}
pub fn clear(&mut self, color: Color) {
@ -37,7 +55,13 @@ impl<'a, I> GraphicDisplay<'a, I> where I: DisplayInterface {
}
fn set_pixel(&mut self, x: u32, y: u32, color: Color) {
let (index, bit) = rotation(x, y, self.cols() as u32, self.rows() as u32, self.rotation());
let (index, bit) = rotation(
x,
y,
self.cols() as u32,
self.rows() as u32,
self.rotation(),
);
let index = index as usize;
match color {
@ -57,38 +81,35 @@ impl<'a, I> GraphicDisplay<'a, I> where I: DisplayInterface {
}
}
impl<'a, I> Deref for GraphicDisplay<'a, I> where I: DisplayInterface {
type Target = Display<I>;
impl<'a, I> Deref for GraphicDisplay<'a, I>
where
I: DisplayInterface,
{
type Target = Display<'a, I>;
fn deref(&self) -> &Display<I> {
fn deref(&self) -> &Display<'a, I> {
&self.display
}
}
impl<'a, I> DerefMut for GraphicDisplay<'a, I> where I: DisplayInterface {
fn deref_mut(&mut self) -> &mut Display<I> {
impl<'a, I> DerefMut for GraphicDisplay<'a, I>
where
I: DisplayInterface,
{
fn deref_mut(&mut self) -> &mut Display<'a, I> {
&mut self.display
}
}
fn rotation(x: u32, y: u32, width: u32, height: u32, rotation: Rotation) -> (u32, u8) {
match rotation {
Rotation::Rotate0 => (
x / 8 + (width / 8) * y,
0x80 >> (x % 8),
),
Rotation::Rotate90 => (
(width - 1 - y) / 8 + (width / 8) * x,
0x01 << (y % 8),
),
Rotation::Rotate0 => (x / 8 + (width / 8) * y, 0x80 >> (x % 8)),
Rotation::Rotate90 => ((width - 1 - y) / 8 + (width / 8) * x, 0x01 << (y % 8)),
Rotation::Rotate180 => (
((width / 8) * height - 1) - (x / 8 + (width / 8) * y),
0x01 << (x % 8),
),
Rotation::Rotate270 => (
y / 8 + (height - 1 - x) * (width / 8),
0x80 >> (y % 8),
),
Rotation::Rotate270 => (y / 8 + (height - 1 - x) * (width / 8), 0x80 >> (y % 8)),
}
}
@ -112,7 +133,7 @@ fn outside_display(x: u32, y: u32, width: u32, height: u32, rotation: Rotation)
#[cfg(feature = "graphics")]
extern crate embedded_graphics;
#[cfg(feature = "graphics")]
use self::embedded_graphics::{drawable::Pixel, Drawing, prelude::UnsignedCoord};
use self::embedded_graphics::{drawable::Pixel, prelude::UnsignedCoord, Drawing};
#[cfg(feature = "graphics")]
impl<'a, I> Drawing<Color> for GraphicDisplay<'a, I>
@ -124,7 +145,13 @@ where
T: Iterator<Item = Pixel<Color>>,
{
for Pixel(UnsignedCoord(x, y), colour) in item_pixels {
if outside_display(x, y, self.cols() as u32, self.rows() as u32, self.rotation()) {
if outside_display(
x,
y,
self.cols() as u32,
self.rows() as u32,
self.rotation(),
) {
continue;
}
@ -135,13 +162,13 @@ where
#[cfg(test)]
mod tests {
use super::*;
use ::{Display, DisplayInterface, Dimensions, GraphicDisplay, Color, Rotation};
use self::embedded_graphics::coord::Coord;
use self::embedded_graphics::fonts::{Font12x16, Font6x8};
use self::embedded_graphics::prelude::*;
use self::embedded_graphics::primitives::{Circle, Line, Rect};
use self::embedded_graphics::Drawing;
use super::*;
use {Color, Dimensions, Display, DisplayInterface, GraphicDisplay, Rotation};
const ROWS: u16 = 3;
const COLS: u8 = 8;
@ -191,7 +218,10 @@ mod tests {
#[test]
fn clear_white() {
let interface = MockInterface::new();
let dimensions = Dimensions { rows: ROWS, cols: COLS };
let dimensions = Dimensions {
rows: ROWS,
cols: COLS,
};
let mut black_buffer = [0u8; BUFFER_SIZE];
let mut red_buffer = [0u8; BUFFER_SIZE];
@ -209,7 +239,10 @@ mod tests {
#[test]
fn clear_black() {
let interface = MockInterface::new();
let dimensions = Dimensions { rows: ROWS, cols: COLS };
let dimensions = Dimensions {
rows: ROWS,
cols: COLS,
};
let mut black_buffer = [0u8; BUFFER_SIZE];
let mut red_buffer = [0u8; BUFFER_SIZE];
@ -227,7 +260,10 @@ mod tests {
#[test]
fn clear_red() {
let interface = MockInterface::new();
let dimensions = Dimensions { rows: ROWS, cols: COLS };
let dimensions = Dimensions {
rows: ROWS,
cols: COLS,
};
let mut black_buffer = [0u8; BUFFER_SIZE];
let mut red_buffer = [0u8; BUFFER_SIZE];
@ -245,7 +281,10 @@ mod tests {
#[test]
fn draw_rect_white() {
let interface = MockInterface::new();
let dimensions = Dimensions { rows: ROWS, cols: COLS };
let dimensions = Dimensions {
rows: ROWS,
cols: COLS,
};
let mut black_buffer = [0u8; BUFFER_SIZE];
let mut red_buffer = [0u8; BUFFER_SIZE];
@ -253,20 +292,24 @@ mod tests {
let display = Display::new(interface, dimensions, Rotation::Rotate0);
let mut display = GraphicDisplay::new(display, &mut black_buffer, &mut red_buffer);
display.draw(Rect::new(Coord::new(0,0), Coord::new(2, 2)).with_stroke(Some(Color::White)).into_iter());
display.draw(
Rect::new(Coord::new(0, 0), Coord::new(2, 2))
.with_stroke(Some(Color::White))
.into_iter(),
);
}
assert_eq!(black_buffer, [
0b11100000,
0b10100000,
0b11100000]);
assert_eq!(black_buffer, [0b11100000, 0b10100000, 0b11100000]);
assert_eq!(red_buffer, [0b00000000, 0b00000000, 0b00000000]);
}
#[test]
fn draw_rect_red() {
let interface = MockInterface::new();
let dimensions = Dimensions { rows: ROWS, cols: COLS };
let dimensions = Dimensions {
rows: ROWS,
cols: COLS,
};
let mut black_buffer = [0u8; BUFFER_SIZE];
let mut red_buffer = [0u8; BUFFER_SIZE];
@ -274,16 +317,14 @@ mod tests {
let display = Display::new(interface, dimensions, Rotation::Rotate0);
let mut display = GraphicDisplay::new(display, &mut black_buffer, &mut red_buffer);
display.draw(Rect::new(Coord::new(1,0), Coord::new(3, 2)).with_stroke(Some(Color::Red)).into_iter());
display.draw(
Rect::new(Coord::new(1, 0), Coord::new(3, 2))
.with_stroke(Some(Color::Red))
.into_iter(),
);
}
assert_eq!(black_buffer, [
0b01110000,
0b01010000,
0b01110000]);
assert_eq!(red_buffer, [
0b01110000,
0b01010000,
0b01110000]);
assert_eq!(black_buffer, [0b01110000, 0b01010000, 0b01110000]);
assert_eq!(red_buffer, [0b01110000, 0b01010000, 0b01110000]);
}
}

1
src/interface.rs
View file

@ -64,7 +64,6 @@ where
Ok(())
}
}
impl<SPI, CS, BUSY, DC, RESET> DisplayInterface for Interface<SPI, CS, BUSY, DC, RESET>

12
src/lib.rs
View file

@ -6,14 +6,16 @@ extern crate embedded_hal as hal;
#[macro_use]
extern crate std;
mod color;
mod command;
mod interface;
mod config;
mod display;
mod graphics;
mod color;
mod interface;
pub use color::Color;
pub use config::Builder;
pub use display::{Dimensions, Display, Rotation};
pub use graphics::GraphicDisplay;
pub use interface::DisplayInterface;
pub use interface::Interface;
pub use display::{Display, Dimensions, Rotation};
pub use graphics::GraphicDisplay;
pub use color::Color;