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This commit is contained in:
Vinzenz Schroeter 2024-05-11 23:28:08 +02:00
parent 0a3f400e92
commit 362426c758
13 changed files with 225 additions and 122 deletions
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8
src/bit_vec.rs
View file

@ -7,11 +7,15 @@ pub struct BitVec {
impl BitVec {
pub fn new(size: usize) -> BitVec {
assert_eq!(size % 8, 0);
Self { data: vec!(0; size / 8) }
Self {
data: vec![0; size / 8],
}
}
pub fn load(data: &[u8]) -> BitVec {
Self { data: Vec::from(data) }
Self {
data: Vec::from(data),
}
}
pub fn set(&mut self, index: usize, value: bool) -> bool {

2
src/byte_grid.rs
View file

@ -31,7 +31,7 @@ impl ByteGrid {
self.data[x + y * self.width] = value;
}
pub fn fill(&mut self, value: u8){
pub fn fill(&mut self, value: u8) {
self.data.fill(value)
}
}

179
src/command.rs
View file

@ -1,7 +1,6 @@
use crate::{BitVec, ByteGrid, Header, Packet, PixelGrid, TILE_SIZE};
use crate::command_codes::{CommandCode, CompressionCode};
use crate::compression::{into_compressed, into_decompressed};
use crate::{BitVec, ByteGrid, Header, Packet, PixelGrid, TILE_SIZE};
/// An origin marks the top left position of the
/// data sent to the display.
@ -46,45 +45,77 @@ impl Into<Packet> for Command {
Command::FadeOut => command_code_only(CommandCode::FadeOut),
Command::HardReset => command_code_only(CommandCode::HardReset),
#[allow(deprecated)]
Command::BitmapLegacy => command_code_only(CommandCode::BitmapLegacy),
Command::CharBrightness(origin, grid) => {
origin_size_payload(CommandCode::CharBrightness,
origin,
Size(grid.width as u16, grid.height as u16),
grid.into())
}
Command::Brightness(brightness) => {
Packet(Header(CommandCode::Brightness.to_primitive(), 0x00000, 0x0000, 0x0000, 0x0000), vec!(brightness))
Command::BitmapLegacy => {
command_code_only(CommandCode::BitmapLegacy)
}
Command::CharBrightness(origin, grid) => origin_size_payload(
CommandCode::CharBrightness,
origin,
Size(grid.width as u16, grid.height as u16),
grid.into(),
),
Command::Brightness(brightness) => Packet(
Header(
CommandCode::Brightness.to_primitive(),
0x00000,
0x0000,
0x0000,
0x0000,
),
vec![brightness],
),
Command::BitmapLinearWin(Origin(pixel_x, pixel_y), pixels) => {
debug_assert_eq!(pixel_x % 8, 0);
debug_assert_eq!(pixels.width % 8, 0);
Packet(
Header(CommandCode::BitmapLinearWin.to_primitive(),
pixel_x / TILE_SIZE,
pixel_y,
pixels.width as u16 / TILE_SIZE,
pixels.height as u16),
pixels.into())
Header(
CommandCode::BitmapLinearWin.to_primitive(),
pixel_x / TILE_SIZE,
pixel_y,
pixels.width as u16 / TILE_SIZE,
pixels.height as u16,
),
pixels.into(),
)
}
Command::BitmapLinear(offset, bits, compression) => {
bitmap_linear_into_packet(CommandCode::BitmapLinear, offset, compression, bits.into())
bitmap_linear_into_packet(
CommandCode::BitmapLinear,
offset,
compression,
bits.into(),
)
}
Command::BitmapLinearAnd(offset, bits, compression) => {
bitmap_linear_into_packet(CommandCode::BitmapLinearAnd, offset, compression, bits.into())
bitmap_linear_into_packet(
CommandCode::BitmapLinearAnd,
offset,
compression,
bits.into(),
)
}
Command::BitmapLinearOr(offset, bits, compression) => {
bitmap_linear_into_packet(CommandCode::BitmapLinearOr, offset, compression, bits.into())
bitmap_linear_into_packet(
CommandCode::BitmapLinearOr,
offset,
compression,
bits.into(),
)
}
Command::BitmapLinearXor(offset, bits, compression) => {
bitmap_linear_into_packet(CommandCode::BitmapLinearXor, offset, compression, bits.into())
}
Command::Cp437Data(origin, grid) => {
origin_size_payload(CommandCode::Cp437Data,
origin,
Size(grid.width as u16, grid.height as u16),
grid.into())
bitmap_linear_into_packet(
CommandCode::BitmapLinearXor,
offset,
compression,
bits.into(),
)
}
Command::Cp437Data(origin, grid) => origin_size_payload(
CommandCode::Cp437Data,
origin,
Size(grid.width as u16, grid.height as u16),
grid.into(),
),
}
}
}
@ -104,21 +135,24 @@ impl TryFrom<Packet> for Command {
fn try_from(value: Packet) -> Result<Self, Self::Error> {
let Packet(Header(command_u16, a, b, c, d), _) = value;
let command_code = match CommandCode::from_primitive(command_u16) {
None => return Err(TryFromPacketError::InvalidCommand(command_u16)),
Some(value) => value
None => {
return Err(TryFromPacketError::InvalidCommand(command_u16))
}
Some(value) => value,
};
match command_code {
CommandCode::Clear => {
match check_command_only(value) {
Some(err) => Err(err),
None => Ok(Command::Clear),
}
}
CommandCode::Clear => match check_command_only(value) {
Some(err) => Err(err),
None => Ok(Command::Clear),
},
CommandCode::Brightness => {
let Packet(header, payload) = value;
if payload.len() != 1 {
return Err(TryFromPacketError::UnexpectedPayloadSize(1, payload.len()));
return Err(TryFromPacketError::UnexpectedPayloadSize(
1,
payload.len(),
));
}
match check_empty_header(header) {
@ -126,18 +160,14 @@ impl TryFrom<Packet> for Command {
None => Ok(Command::Brightness(payload[0])),
}
}
CommandCode::HardReset => {
match check_command_only(value) {
Some(err) => Err(err),
None => Ok(Command::HardReset),
}
}
CommandCode::FadeOut => {
match check_command_only(value) {
Some(err) => Err(err),
None => Ok(Command::FadeOut),
}
}
CommandCode::HardReset => match check_command_only(value) {
Some(err) => Err(err),
None => Ok(Command::HardReset),
},
CommandCode::FadeOut => match check_command_only(value) {
Some(err) => Err(err),
None => Ok(Command::FadeOut),
},
CommandCode::Cp437Data => {
let Packet(_, payload) = value;
Ok(Command::Cp437Data(
@ -153,14 +183,16 @@ impl TryFrom<Packet> for Command {
))
}
#[allow(deprecated)]
CommandCode::BitmapLegacy => {
Ok(Command::BitmapLegacy)
}
CommandCode::BitmapLegacy => Ok(Command::BitmapLegacy),
CommandCode::BitmapLinearWin => {
let Packet(_, payload) = value;
Ok(Command::BitmapLinearWin(
Origin(a * TILE_SIZE, b),
PixelGrid::load(c as usize * TILE_SIZE as usize, d as usize, &payload),
PixelGrid::load(
c as usize * TILE_SIZE as usize,
d as usize,
&payload,
),
))
}
CommandCode::BitmapLinear => {
@ -183,20 +215,42 @@ impl TryFrom<Packet> for Command {
}
}
fn bitmap_linear_into_packet(command: CommandCode, offset: Offset, compression: CompressionCode, payload: Vec<u8>) -> Packet {
fn bitmap_linear_into_packet(
command: CommandCode,
offset: Offset,
compression: CompressionCode,
payload: Vec<u8>,
) -> Packet {
let payload = into_compressed(compression, payload);
let compression = CompressionCode::to_primitive(&compression);
Packet(Header(command.to_primitive(), offset, payload.len() as u16, compression, 0), payload)
Packet(
Header(
command.to_primitive(),
offset,
payload.len() as u16,
compression,
0,
),
payload,
)
}
fn origin_size_payload(command: CommandCode, origin: Origin, size: Size, payload: Vec<u8>) -> Packet {
fn origin_size_payload(
command: CommandCode,
origin: Origin,
size: Size,
payload: Vec<u8>,
) -> Packet {
let Origin(x, y) = origin;
let Size(w, h) = size;
Packet(Header(command.to_primitive(), x, y, w, h), payload.into())
}
fn command_code_only(code: CommandCode) -> Packet {
Packet(Header(code.to_primitive(), 0x0000, 0x0000, 0x0000, 0x0000), vec!())
Packet(
Header(code.to_primitive(), 0x0000, 0x0000, 0x0000, 0x0000),
vec![],
)
}
fn check_empty_header(header: Header) -> Option<TryFromPacketError> {
@ -219,21 +273,26 @@ fn check_command_only(packet: Packet) -> Option<TryFromPacketError> {
}
}
fn packet_into_linear_bitmap(packet: Packet) -> Result<(BitVec, CompressionCode), TryFromPacketError> {
fn packet_into_linear_bitmap(
packet: Packet,
) -> Result<(BitVec, CompressionCode), TryFromPacketError> {
let Packet(Header(_, _, length, sub, reserved), payload) = packet;
if reserved != 0 {
return Err(TryFromPacketError::ExtraneousHeaderValues);
}
if payload.len() != length as usize {
return Err(TryFromPacketError::UnexpectedPayloadSize(length as usize, payload.len()));
return Err(TryFromPacketError::UnexpectedPayloadSize(
length as usize,
payload.len(),
));
}
let sub = match CompressionCode::from_primitive(sub) {
None => return Err(TryFromPacketError::InvalidCompressionCode(sub)),
Some(value) => value
Some(value) => value,
};
let payload = match into_decompressed(sub, payload) {
None => return Err(TryFromPacketError::DecompressionFailed),
Some(value) => value
Some(value) => value,
};
Ok((BitVec::load(&payload), sub))
}

68
src/compression.rs
View file

@ -1,70 +1,78 @@
use crate::{CompressionCode, Payload};
use std::io::{Read, Write};
#[cfg(feature = "compression-bz")]
use bzip2::read::{BzEncoder, BzDecoder};
use bzip2::read::{BzDecoder, BzEncoder};
#[cfg(feature = "compression-gz")]
use flate2::read::{GzEncoder, GzDecoder};
use flate2::read::{GzDecoder, GzEncoder};
#[cfg(feature = "compression-lz")]
use lz4::{EncoderBuilder as Lz4EncoderBuilder, Decoder as Lz4Decoder};
use lz4::{Decoder as Lz4Decoder, EncoderBuilder as Lz4EncoderBuilder};
#[cfg(feature = "compression-zs")]
use zstd::{Encoder as ZstdEncoder, Decoder as ZstdDecoder};
use zstd::{Decoder as ZstdDecoder, Encoder as ZstdEncoder};
pub(crate) fn into_decompressed(kind: CompressionCode, payload: Payload) -> Option<Payload> {
use crate::{CompressionCode, Payload};
pub(crate) fn into_decompressed(
kind: CompressionCode,
payload: Payload,
) -> Option<Payload> {
match kind {
CompressionCode::None => Some(payload),
#[cfg(feature = "compression-gz")]
CompressionCode::Gz => {
let mut decoder = GzDecoder::new(&*payload);
let mut decompressed = vec!();
let mut decompressed = vec![];
match decoder.read_to_end(&mut decompressed) {
Err(_) => None,
Ok(_) => Some(decompressed)
Ok(_) => Some(decompressed),
}
}
#[cfg(feature = "compression-bz")]
CompressionCode::Bz => {
let mut decoder = BzDecoder::new(&*payload);
let mut decompressed = vec!();
let mut decompressed = vec![];
match decoder.read_to_end(&mut decompressed) {
Err(_) => None,
Ok(_) => Some(decompressed)
Ok(_) => Some(decompressed),
}
}
#[cfg(feature = "compression-lz")]
CompressionCode::Lz => {
let mut decoder = match Lz4Decoder::new(&*payload) {
Err(_) => return None,
Ok(value) => value
Ok(value) => value,
};
let mut decompressed = vec!();
let mut decompressed = vec![];
match decoder.read_to_end(&mut decompressed) {
Err(_) => None,
Ok(_) => Some(decompressed)
Ok(_) => Some(decompressed),
}
}
#[cfg(feature = "compression-zs")]
CompressionCode::Zs => {
let mut decoder = match ZstdDecoder::new(&*payload) {
Err(_) => return None,
Ok(value) => value
Ok(value) => value,
};
let mut decompressed = vec!();
let mut decompressed = vec![];
match decoder.read_to_end(&mut decompressed) {
Err(_) => None,
Ok(_) => Some(decompressed)
Ok(_) => Some(decompressed),
}
}
}
}
pub(crate) fn into_compressed(kind: CompressionCode, payload: Payload) -> Payload {
pub(crate) fn into_compressed(
kind: CompressionCode,
payload: Payload,
) -> Payload {
match kind {
CompressionCode::None => payload,
#[cfg(feature = "compression-gz")]
CompressionCode::Gz => {
let mut encoder = GzEncoder::new(&*payload, flate2::Compression::fast());
let mut compressed = vec!();
let mut encoder =
GzEncoder::new(&*payload, flate2::Compression::fast());
let mut compressed = vec![];
match encoder.read_to_end(&mut compressed) {
Err(err) => panic!("could not compress payload: {}", err),
Ok(_) => compressed,
@ -72,8 +80,9 @@ pub(crate) fn into_compressed(kind: CompressionCode, payload: Payload) -> Payloa
}
#[cfg(feature = "compression-bz")]
CompressionCode::Bz => {
let mut encoder = BzEncoder::new(&*payload, bzip2::Compression::fast());
let mut compressed = vec!();
let mut encoder =
BzEncoder::new(&*payload, bzip2::Compression::fast());
let mut compressed = vec![];
match encoder.read_to_end(&mut compressed) {
Err(err) => panic!("could not compress payload: {}", err),
Ok(_) => compressed,
@ -82,22 +91,21 @@ pub(crate) fn into_compressed(kind: CompressionCode, payload: Payload) -> Payloa
#[cfg(feature = "compression-lz")]
CompressionCode::Lz => {
let mut encoder = Lz4EncoderBuilder::new()
.build(vec!())
.build(vec![])
.expect("could not create encoder");
encoder.write(&*payload)
.expect("could not write payload");
encoder.write(&*payload).expect("could not write payload");
let (payload, _) = encoder.finish();
payload
}
#[cfg(feature = "compression-zs")]
CompressionCode::Zs => {
let mut encoder = ZstdEncoder::new(vec!(), zstd::DEFAULT_COMPRESSION_LEVEL)
.expect("could not create encoder");
encoder.write(&*payload)
let mut encoder =
ZstdEncoder::new(vec![], zstd::DEFAULT_COMPRESSION_LEVEL)
.expect("could not create encoder");
encoder
.write(&*payload)
.expect("could not compress payload");
encoder.finish()
.expect("could not finish encoding")
encoder.finish().expect("could not finish encoding")
}
}
}

7
src/connection.rs
View file

@ -1,6 +1,8 @@
use std::fmt::Debug;
use std::net::{ToSocketAddrs, UdpSocket};
use log::{debug, info};
use crate::Packet;
pub struct Connection {
@ -17,7 +19,10 @@ impl Connection {
}
/// Send a command to the display
pub fn send(&self, packet: impl Into<Packet> + Debug) -> Result<(), std::io::Error> {
pub fn send(
&self,
packet: impl Into<Packet> + Debug,
) -> Result<(), std::io::Error> {
debug!("sending {packet:?}");
let packet: Packet = packet.into();
let data: Vec<u8> = packet.into();

24
src/lib.rs
View file

@ -1,19 +1,19 @@
mod connection;
mod pixel_grid;
pub use crate::bit_vec::BitVec;
pub use crate::byte_grid::ByteGrid;
pub use crate::command::{Command, Origin, Size};
pub use crate::command_codes::{CommandCode, CompressionCode};
pub use crate::connection::Connection;
pub use crate::packet::{Header, Packet, Payload};
pub use crate::pixel_grid::PixelGrid;
mod bit_vec;
mod packet;
mod byte_grid;
mod command;
mod command_codes;
mod byte_grid;
mod compression;
pub use crate::connection::Connection;
pub use crate::pixel_grid::PixelGrid;
pub use crate::bit_vec::BitVec;
pub use crate::packet::{Packet, Header, Payload};
pub use crate::command::{Command, Size, Origin};
pub use crate::command_codes::{CommandCode, CompressionCode};
pub use crate::byte_grid::ByteGrid;
mod connection;
mod packet;
mod pixel_grid;
pub const TILE_SIZE: u16 = 8;
pub const TILE_WIDTH: u16 = 56;

4
src/packet.rs
View file

@ -10,7 +10,7 @@ impl Into<Vec<u8>> for Packet {
fn into(self) -> Vec<u8> {
let Packet(Header(mode, a, b, c, d), payload) = self;
let mut packet = vec!(0u8; 10 + payload.len());
let mut packet = vec![0u8; 10 + payload.len()];
packet[0..=1].copy_from_slice(&u16::to_be_bytes(mode));
packet[2..=3].copy_from_slice(&u16::to_be_bytes(a));
packet[4..=5].copy_from_slice(&u16::to_be_bytes(b));
@ -41,4 +41,4 @@ impl From<Vec<u8>> for Packet {
Packet(Header(mode, a, b, c, d), payload)
}
}
}