Spread all components over modules
This commit is contained in:
Tim Visée
135
src/arg_handler.rs
Normal file
135
src/arg_handler.rs
Normal file
@@ -0,0 +1,135 @@
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extern crate clap;
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use clap::{Arg, ArgMatches, App};
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use app::*;
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/// CLI argument handler.
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pub struct ArgHandler<'a> {
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matches: ArgMatches<'a>,
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}
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impl<'a: 'b, 'b> ArgHandler<'a> {
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/// Parse CLI arguments.
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pub fn parse() -> ArgHandler<'a> {
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// Handle/parse arguments
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let matches = App::new(APP_NAME)
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.version(APP_VERSION)
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.author(APP_AUTHOR)
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.about(APP_ABOUT)
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.arg(Arg::with_name("HOST")
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.help("The host to pwn \"host:port\"")
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.required(true)
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.index(1))
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.arg(Arg::with_name("count")
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.short("c")
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.long("count")
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.value_name("COUNT")
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.help("Number of simultanious threads (def: 4)")
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.takes_value(true))
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.arg(Arg::with_name("image")
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.short("i")
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.long("images")
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.value_name("PATH")
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.help("Paths of the images to print")
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.required(true)
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.multiple(true)
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.takes_value(true))
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.arg(Arg::with_name("width")
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.short("w")
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.long("width")
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.value_name("PIXELS")
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.help("Drawing width in pixels (def: 1920)")
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.takes_value(true))
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.arg(Arg::with_name("height")
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.short("h")
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.long("height")
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.value_name("PIXELS")
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.help("Drawing height in pixels (def: 1080)")
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.takes_value(true))
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.arg(Arg::with_name("x")
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.short("x")
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.long("x")
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.value_name("PIXELS")
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.help("Drawing X offset in pixels (def: 0)")
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.takes_value(true))
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.arg(Arg::with_name("y")
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.short("y")
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.long("y")
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.value_name("PIXELS")
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.help("Drawing Y offset in pixels (def: 0)")
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.takes_value(true))
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.arg(Arg::with_name("fps")
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.short("r")
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.long("fps")
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.value_name("RATE")
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.help("Frames per second with multiple images (def: 1)")
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.takes_value(true))
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.get_matches();
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// Instantiate
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ArgHandler {
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matches,
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}
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}
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/// Get the host property.
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pub fn host(&'a self) -> &'b str {
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self.matches.value_of("HOST")
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.expect("Please specify a host")
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}
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/// Get the thread count.
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pub fn count(&self) -> usize {
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self.matches.value_of("count")
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.unwrap_or(&format!("{}", DEFAULT_THREAD_COUNT))
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.parse::<usize>()
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.expect("Invalid count specified")
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}
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/// Get the image paths.
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pub fn image_paths(&'a self) -> Vec<&'b str> {
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self.matches.values_of("image")
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.expect("Please specify an image paths")
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.collect()
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}
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/// Get the image size.
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pub fn size(&self) -> (u32, u32) {
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(
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self.matches.value_of("width")
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.unwrap_or(&format!("{}", DEFAULT_IMAGE_WIDTH))
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.parse::<u32>()
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.expect("Invalid image width"),
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self.matches.value_of("height")
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.unwrap_or(&format!("{}", DEFAULT_IMAGE_HEIGHT))
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.parse::<u32>()
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.expect("Invalid image height"),
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)
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}
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/// Get the image offset.
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pub fn offset(&self) -> (u32, u32) {
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(
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self.matches.value_of("x")
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.unwrap_or("0")
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.parse::<u32>()
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.expect("Invalid X offset"),
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self.matches.value_of("y")
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.unwrap_or("0")
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.parse::<u32>()
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.expect("Invalid Y offset"),
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)
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}
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/// Get the FPS.
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pub fn fps(&self) -> u32 {
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self.matches.value_of("fps")
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.unwrap_or(&format!("{}", DEFAULT_IMAGE_FPS))
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.parse::<u32>()
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.expect("Invalid frames per second rate")
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}
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}
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@@ -1,6 +1,13 @@
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/// Color struct.
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///
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/// Represents a color with RGB values from 0 to 255.
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#[derive(Copy, Clone)]
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pub struct Color {
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r: u8,
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g: u8,
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b: u8,
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}
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impl Color {
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/// Constructor.
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82
src/image_manager.rs
Normal file
82
src/image_manager.rs
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@@ -0,0 +1,82 @@
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use std::path::Path;
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use image;
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use image::{DynamicImage, FilterType};
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use pix_canvas::PixCanvas;
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/// A manager that manages all images to print.
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pub struct ImageManager {
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images: Vec<DynamicImage>,
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index: isize,
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}
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impl ImageManager {
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/// Intantiate the image manager.
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pub fn from(images: Vec<DynamicImage>) -> ImageManager {
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ImageManager {
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images,
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index: 0,
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}
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}
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/// Instantiate the image manager, and load the images from the given paths.
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pub fn load(paths: Vec<&str>, size: &(u32, u32)) -> ImageManager {
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// Show a status message
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println!("Load and process {} image(s)...", paths.len());
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// Load the images from the paths
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let image_manager = ImageManager::from(
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paths.iter()
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.map(|path| load_image(path, &size))
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.collect()
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);
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// We succeeded
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println!("All images have been loaded successfully");
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image_manager
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}
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/// Tick the image
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pub fn tick(&mut self, canvas: &mut PixCanvas) {
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// Get the image index bound
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let bound = self.images.len();
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// Get the image to use
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let image = &mut self.images[
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self.index as usize % bound
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];
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// Update the image on the canvas
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canvas.update_image(image);
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// Increase the index
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self.index += 1;
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}
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}
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/// Load the image at the given path, and size it correctly
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fn load_image(path: &str, size: &(u32, u32)) -> DynamicImage {
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// Create a path instance
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let path = Path::new(&path);
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// Check whether the path exists
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if !path.is_file() {
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panic!("The given path does not exist or is not a file");
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}
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// Load the image
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let image = image::open(&path).unwrap();
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// Resize the image to fit the screen
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image.resize_exact(
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size.0,
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size.1,
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FilterType::Gaussian,
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)
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}
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515
src/main.rs
515
src/main.rs
@@ -1,154 +1,41 @@
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extern crate bufstream;
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extern crate clap;
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extern crate image;
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mod app;
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mod arg_handler;
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mod color;
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mod image_manager;
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mod painter;
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mod painter_handle;
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mod pix_canvas;
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mod pix_client;
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mod rect;
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use std::io::Error;
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use std::io::prelude::*;
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use std::net::TcpStream;
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use std::path::Path;
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use std::sync::mpsc;
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use std::sync::mpsc::{Sender, Receiver};
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use std::thread;
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use std::thread::JoinHandle;
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use std::time::Duration;
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use bufstream::BufStream;
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use clap::{Arg, ArgMatches, App};
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use image::{DynamicImage, FilterType, Pixel};
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use app::*;
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use color::Color;
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use rect::Rect;
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use arg_handler::ArgHandler;
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use image_manager::ImageManager;
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use pix_canvas::PixCanvas;
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/// Main application entrypoint.
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fn main() {
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// Parse CLI arguments
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let matches = parse_args();
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// Get the host
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let host = matches
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.value_of("HOST")
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.expect("Please specify a host");
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// Get the count
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let count = matches
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.value_of("count")
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.unwrap_or(&format!("{}", DEFAULT_THREAD_COUNT))
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.parse::<usize>()
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.expect("Invalid count specified");
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// Get the image path
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let image_paths = matches
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.values_of("image")
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.expect("Please specify an image paths")
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.collect();
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// Get the width and height
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let width = matches
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.value_of("width")
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.unwrap_or(&format!("{}", DEFAULT_IMAGE_WIDTH))
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.parse::<u32>()
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.expect("Invalid image width");
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let height = matches
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.value_of("height")
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.unwrap_or(&format!("{}", DEFAULT_IMAGE_HEIGHT))
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.parse::<u32>()
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.expect("Invalid image height");
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// Get the offset
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let offset_x = matches
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.value_of("x")
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.unwrap_or("0")
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.parse::<u32>()
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.expect("Invalid X offset");
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let offset_y = matches
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.value_of("y")
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.unwrap_or("0")
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.parse::<u32>()
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.expect("Invalid Y offset");
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// Get the FPS rate
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let fps = matches
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.value_of("fps")
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.unwrap_or(&format!("{}", DEFAULT_IMAGE_FPS))
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.parse::<u32>()
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.expect("Invalid frames per second rate");
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let arg_handler = ArgHandler::parse();
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// Start
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start(
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host,
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image_paths,
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fps,
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count,
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(width, height),
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(offset_x, offset_y)
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arg_handler.host(),
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arg_handler.image_paths(),
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arg_handler.fps(),
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arg_handler.count(),
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arg_handler.size(),
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arg_handler.offset(),
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);
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}
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/// Parse CLI arguments, return the matches.
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fn parse_args<'a>() -> ArgMatches<'a> {
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// Handle/parse arguments
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App::new(APP_NAME)
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.version(APP_VERSION)
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.author(APP_AUTHOR)
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.about(APP_ABOUT)
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.arg(Arg::with_name("HOST")
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.help("The host to pwn \"host:port\"")
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.required(true)
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.index(1))
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.arg(Arg::with_name("count")
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.short("c")
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.long("count")
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.value_name("COUNT")
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.help("Number of simultanious threads (def: 4)")
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.takes_value(true))
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.arg(Arg::with_name("image")
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.short("i")
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.long("images")
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.value_name("PATH")
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.help("Paths of the images to print")
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.required(true)
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.multiple(true)
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.takes_value(true))
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.arg(Arg::with_name("width")
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.short("w")
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.long("width")
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.value_name("PIXELS")
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.help("Drawing width in pixels (def: 1920)")
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.takes_value(true))
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.arg(Arg::with_name("height")
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.short("h")
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.long("height")
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.value_name("PIXELS")
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.help("Drawing height in pixels (def: 1080)")
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.takes_value(true))
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.arg(Arg::with_name("x")
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.short("x")
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.long("x")
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.value_name("PIXELS")
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.help("Drawing X offset in pixels (def: 0)")
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.takes_value(true))
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.arg(Arg::with_name("y")
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.short("y")
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.long("y")
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.value_name("PIXELS")
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.help("Drawing Y offset in pixels (def: 0)")
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.takes_value(true))
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.arg(Arg::with_name("fps")
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.short("r")
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.long("fps")
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.value_name("RATE")
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.help("Frames per second with multiple images (def: 1)")
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.takes_value(true))
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.get_matches()
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}
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/// Start the client.
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fn start(
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host: &str,
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@@ -180,373 +67,3 @@ fn start(
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);
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}
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}
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/// Create a stream to talk to the pixelflut server.
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///
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/// The stream is returned as result.
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fn create_stream(host: String) -> Result<TcpStream, Error> {
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TcpStream::connect(host)
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}
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/// Load the image at the given path, and size it correctly
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fn load_image(path: &str, size: &(u32, u32)) -> DynamicImage {
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// Create a path instance
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let path = Path::new(&path);
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// Check whether the path exists
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if !path.is_file() {
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panic!("The given path does not exist or is not a file");
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}
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// Load the image
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let image = image::open(&path).unwrap();
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// Resize the image to fit the screen
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image.resize_exact(
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size.0,
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size.1,
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FilterType::Gaussian,
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)
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}
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|
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/// A manager that manages all images to print.
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struct ImageManager {
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images: Vec<DynamicImage>,
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index: isize,
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}
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impl ImageManager {
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/// Intantiate the image manager.
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pub fn from(images: Vec<DynamicImage>) -> ImageManager {
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ImageManager {
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images,
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index: 0,
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}
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}
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/// Instantiate the image manager, and load the images from the given paths.
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pub fn load(paths: Vec<&str>, size: &(u32, u32)) -> ImageManager {
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// Show a status message
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println!("Load and process {} image(s)...", paths.len());
|
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|
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// Load the images from the paths
|
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let image_manager = ImageManager::from(
|
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paths.iter()
|
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.map(|path| load_image(path, &size))
|
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.collect()
|
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);
|
||||
|
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// We succeeded
|
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println!("All images have been loaded successfully");
|
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|
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image_manager
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}
|
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|
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/// Tick the image
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pub fn tick(&mut self, canvas: &mut PixCanvas) {
|
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// Get the image index bound
|
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let bound = self.images.len();
|
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|
||||
// Get the image to use
|
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let image = &mut self.images[
|
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self.index as usize % bound
|
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];
|
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|
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// Update the image on the canvas
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canvas.update_image(image);
|
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|
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// Increase the index
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self.index += 1;
|
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}
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}
|
||||
|
||||
|
||||
|
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/// A pixflut instance
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struct PixCanvas {
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host: String,
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painter_count: usize,
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painter_handles: Vec<PainterHandle>,
|
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size: (u32, u32),
|
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offset: (u32, u32),
|
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}
|
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|
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impl PixCanvas {
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/// Create a new pixelflut canvas.
|
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pub fn new(
|
||||
host: &str,
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||||
painter_count: usize,
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||||
size: (u32, u32),
|
||||
offset: (u32, u32),
|
||||
) -> PixCanvas {
|
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// Initialize the object
|
||||
let mut canvas = PixCanvas {
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host: host.to_string(),
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painter_count,
|
||||
painter_handles: Vec::with_capacity(painter_count),
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size,
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||||
offset,
|
||||
};
|
||||
|
||||
// Show a status message
|
||||
println!("Starting painter threads...");
|
||||
|
||||
// Spawn some painters
|
||||
canvas.spawn_painters();
|
||||
|
||||
// Return the canvas
|
||||
canvas
|
||||
}
|
||||
|
||||
/// Spawn the painters for this canvas
|
||||
fn spawn_painters(&mut self) {
|
||||
// Spawn some painters
|
||||
for i in 0..self.painter_count {
|
||||
// Determine the slice width
|
||||
let width = self.size.0 / (self.painter_count as u32);
|
||||
|
||||
// Define the area to paint per thread
|
||||
let painter_area = Rect::from(
|
||||
(i as u32) * width,
|
||||
0,
|
||||
width,
|
||||
self.size.1,
|
||||
);
|
||||
|
||||
// Spawn the painter
|
||||
self.spawn_painter(painter_area);
|
||||
}
|
||||
}
|
||||
|
||||
/// Spawn a single painter in a thread.
|
||||
fn spawn_painter(&mut self, area: Rect) {
|
||||
// Get the host that will be used
|
||||
let host = self.host.to_string();
|
||||
|
||||
// Redefine the offset to make it usable in the thread
|
||||
let offset = (self.offset.0, self.offset.1);
|
||||
|
||||
// Create a channel to push new images
|
||||
let (tx, rx): (Sender<DynamicImage>, Receiver<DynamicImage>)
|
||||
= mpsc::channel();
|
||||
|
||||
// Create the painter thread
|
||||
let thread = thread::spawn(move || {
|
||||
// Create a new stream
|
||||
let stream = create_stream(host)
|
||||
.expect("failed to open stream to pixelflut");
|
||||
|
||||
// Create a new client
|
||||
let client = PixClient::new(stream);
|
||||
|
||||
// Create a painter
|
||||
let mut painter = Painter::new(
|
||||
client,
|
||||
area,
|
||||
offset,
|
||||
None
|
||||
);
|
||||
|
||||
// Do some work
|
||||
loop {
|
||||
// Work
|
||||
painter.work()
|
||||
.expect("Painter failed to perform work");
|
||||
|
||||
// Update the image to paint
|
||||
if let Ok(image) = rx.try_recv() {
|
||||
painter.set_image(image);
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
// Create a new painter handle, pust it to the list
|
||||
self.painter_handles.push(
|
||||
PainterHandle::new(
|
||||
thread,
|
||||
area,
|
||||
tx,
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
// Update the image that is being rendered for all painters.
|
||||
pub fn update_image(&mut self, image: &mut DynamicImage) {
|
||||
// Update the image for each specific painter handle
|
||||
for handle in &self.painter_handles {
|
||||
handle.update_image(image);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
/// A handle for a painter thread.
|
||||
struct PainterHandle {
|
||||
#[allow(dead_code)]
|
||||
thread: JoinHandle<u32>,
|
||||
area: Rect,
|
||||
image_sender: Sender<DynamicImage>,
|
||||
}
|
||||
|
||||
impl PainterHandle {
|
||||
/// Create a new handle from the given properties.
|
||||
pub fn new(thread: JoinHandle<u32>, area: Rect, image_sender: Sender<DynamicImage>) -> PainterHandle {
|
||||
PainterHandle {
|
||||
thread,
|
||||
area,
|
||||
image_sender,
|
||||
}
|
||||
}
|
||||
|
||||
/// Push an image update.
|
||||
pub fn update_image(&self, full_image: &mut DynamicImage) {
|
||||
// Crop the image to the area
|
||||
let image = full_image.crop(
|
||||
self.area.x,
|
||||
self.area.y,
|
||||
self.area.w,
|
||||
self.area.h,
|
||||
);
|
||||
|
||||
// Push a new image to the thread
|
||||
// TODO: return this result
|
||||
self.image_sender.send(image)
|
||||
.expect("Failed to send image update to painter");
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
struct Painter {
|
||||
client: PixClient,
|
||||
area: Rect,
|
||||
offset: (u32, u32),
|
||||
image: Option<DynamicImage>,
|
||||
}
|
||||
|
||||
impl Painter {
|
||||
/// Create a new painter.
|
||||
pub fn new(client: PixClient, area: Rect, offset: (u32, u32), image: Option<DynamicImage>) -> Painter {
|
||||
Painter {
|
||||
client,
|
||||
area,
|
||||
offset,
|
||||
image,
|
||||
}
|
||||
}
|
||||
|
||||
/// Perform work.
|
||||
/// Paint the whole defined area.
|
||||
pub fn work(&mut self) -> Result<(), Error> {
|
||||
// Make sure there is an image
|
||||
if self.image.is_none() {
|
||||
// Show a warning
|
||||
println!("Painter thread has no image yet to paint, waiting...");
|
||||
|
||||
// Sleep a little
|
||||
thread::sleep(Duration::from_millis(PAINTER_IMAGE_WAIT_DELAY_MILLIS));
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
// Get an RGB image
|
||||
let image = self.image.as_mut().unwrap().to_rgb();
|
||||
|
||||
// Loop through all the pixels, and set their color
|
||||
for x in 0..self.area.w {
|
||||
for y in 0..self.area.h {
|
||||
// Get the pixel at this location
|
||||
let pixel = image.get_pixel(x, y);
|
||||
|
||||
// Get the channels
|
||||
let channels = pixel.channels();
|
||||
|
||||
// Define the color
|
||||
let color = Color::from(
|
||||
channels[0],
|
||||
channels[1],
|
||||
channels[2],
|
||||
);
|
||||
|
||||
// Set the pixel
|
||||
self.client.write_pixel(
|
||||
x + self.area.x + self.offset.0,
|
||||
y + self.area.y + self.offset.1,
|
||||
&color,
|
||||
)?;
|
||||
}
|
||||
}
|
||||
|
||||
// Everything seems to be ok
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Update the image that should be painted
|
||||
pub fn set_image(&mut self, image: DynamicImage) {
|
||||
self.image = Some(image);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
/// A pixelflut client.
|
||||
/// This client uses a stream to talk to a pixelflut panel.
|
||||
/// It allows to write pixels to the panel, and read some status.
|
||||
struct PixClient {
|
||||
stream: BufStream<TcpStream>,
|
||||
}
|
||||
|
||||
impl PixClient {
|
||||
/// Create a new client instance.
|
||||
pub fn new(stream: TcpStream) -> PixClient {
|
||||
PixClient {
|
||||
stream: BufStream::new(stream),
|
||||
}
|
||||
}
|
||||
|
||||
/// Write a pixel to the given stream.
|
||||
fn write_pixel(&mut self, x: u32, y: u32, color: &Color) -> Result<(), Error> {
|
||||
// Write the command to set a pixel
|
||||
self.write_command(
|
||||
format!("PX {} {} {}", x, y, color.as_hex()),
|
||||
)
|
||||
}
|
||||
|
||||
// /// Read the size of the screen.
|
||||
// fn read_screen_size(&mut self) {
|
||||
// // Read the screen size
|
||||
// let size = self
|
||||
// .write_read_command("SIZE".into())
|
||||
// .expect("Failed to read screen size");
|
||||
//
|
||||
// // TODO: Remove this after debugging
|
||||
// println!("Read size: {}", size);
|
||||
// }
|
||||
|
||||
/// Write the given command to the given stream.
|
||||
fn write_command(&mut self, cmd: String) -> Result<(), Error> {
|
||||
// Write the pixels and a new line
|
||||
self.stream.write(cmd.as_bytes())?;
|
||||
self.stream.write("\n".as_bytes())?;
|
||||
|
||||
// Everything seems to be ok
|
||||
Ok(())
|
||||
}
|
||||
|
||||
// /// Write the given command to the given stream, and read the output.
|
||||
// fn write_read_command(&mut self, cmd: String) -> Result<String, Error> {
|
||||
// // Write the command
|
||||
// self.write_command(cmd);
|
||||
//
|
||||
// // Read the output
|
||||
// let mut buffer = String::with_capacity(CMD_READ_BUFFER_SIZE);
|
||||
// println!("Reading line...");
|
||||
// self.stream.read_line(&mut buffer)?;
|
||||
// println!("Done reading");
|
||||
//
|
||||
// // Return the read string
|
||||
// Ok(buffer)
|
||||
// }
|
||||
}
|
||||
|
||||
82
src/painter.rs
Normal file
82
src/painter.rs
Normal file
@@ -0,0 +1,82 @@
|
||||
use std::io::Error;
|
||||
use std::thread;
|
||||
use std::time::Duration;
|
||||
|
||||
use image::{DynamicImage, Pixel};
|
||||
|
||||
use app::PAINTER_IMAGE_WAIT_DELAY_MILLIS;
|
||||
use color::Color;
|
||||
use pix_client::PixClient;
|
||||
use rect::Rect;
|
||||
|
||||
|
||||
|
||||
/// A painter that paints on a pixelflut panel.
|
||||
pub struct Painter {
|
||||
client: PixClient,
|
||||
area: Rect,
|
||||
offset: (u32, u32),
|
||||
image: Option<DynamicImage>,
|
||||
}
|
||||
|
||||
impl Painter {
|
||||
/// Create a new painter.
|
||||
pub fn new(client: PixClient, area: Rect, offset: (u32, u32), image: Option<DynamicImage>) -> Painter {
|
||||
Painter {
|
||||
client,
|
||||
area,
|
||||
offset,
|
||||
image,
|
||||
}
|
||||
}
|
||||
|
||||
/// Perform work.
|
||||
/// Paint the whole defined area.
|
||||
pub fn work(&mut self) -> Result<(), Error> {
|
||||
// Make sure there is an image
|
||||
if self.image.is_none() {
|
||||
// Show a warning
|
||||
println!("Painter thread has no image yet to paint, waiting...");
|
||||
|
||||
// Sleep a little
|
||||
thread::sleep(Duration::from_millis(PAINTER_IMAGE_WAIT_DELAY_MILLIS));
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
// Get an RGB image
|
||||
let image = self.image.as_mut().unwrap().to_rgb();
|
||||
|
||||
// Loop through all the pixels, and set their color
|
||||
for x in 0..self.area.w {
|
||||
for y in 0..self.area.h {
|
||||
// Get the pixel at this location
|
||||
let pixel = image.get_pixel(x, y);
|
||||
|
||||
// Get the channels
|
||||
let channels = pixel.channels();
|
||||
|
||||
// Define the color
|
||||
let color = Color::from(
|
||||
channels[0],
|
||||
channels[1],
|
||||
channels[2],
|
||||
);
|
||||
|
||||
// Set the pixel
|
||||
self.client.write_pixel(
|
||||
x + self.area.x + self.offset.0,
|
||||
y + self.area.y + self.offset.1,
|
||||
&color,
|
||||
)?;
|
||||
}
|
||||
}
|
||||
|
||||
// Everything seems to be ok
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Update the image that should be painted
|
||||
pub fn set_image(&mut self, image: DynamicImage) {
|
||||
self.image = Some(image);
|
||||
}
|
||||
}
|
||||
48
src/painter_handle.rs
Normal file
48
src/painter_handle.rs
Normal file
@@ -0,0 +1,48 @@
|
||||
extern crate image;
|
||||
|
||||
use std::sync::mpsc::Sender;
|
||||
use std::thread::JoinHandle;
|
||||
|
||||
use image::DynamicImage;
|
||||
|
||||
use rect::Rect;
|
||||
|
||||
|
||||
|
||||
/// A handle to a painter thread.
|
||||
///
|
||||
/// This also holds a channel to the painter thread,
|
||||
/// to allow image updates to be pushed to the thread.
|
||||
pub struct PainterHandle {
|
||||
#[allow(dead_code)]
|
||||
thread: JoinHandle<u32>,
|
||||
area: Rect,
|
||||
image_sender: Sender<DynamicImage>,
|
||||
}
|
||||
|
||||
impl PainterHandle {
|
||||
/// Create a new handle from the given properties.
|
||||
pub fn new(thread: JoinHandle<u32>, area: Rect, image_sender: Sender<DynamicImage>) -> PainterHandle {
|
||||
PainterHandle {
|
||||
thread,
|
||||
area,
|
||||
image_sender,
|
||||
}
|
||||
}
|
||||
|
||||
/// Push an image update.
|
||||
pub fn update_image(&self, full_image: &mut DynamicImage) {
|
||||
// Crop the image to the area
|
||||
let image = full_image.crop(
|
||||
self.area.x,
|
||||
self.area.y,
|
||||
self.area.w,
|
||||
self.area.h,
|
||||
);
|
||||
|
||||
// Push a new image to the thread
|
||||
// TODO: return this result
|
||||
self.image_sender.send(image)
|
||||
.expect("Failed to send image update to painter");
|
||||
}
|
||||
}
|
||||
140
src/pix_canvas.rs
Normal file
140
src/pix_canvas.rs
Normal file
@@ -0,0 +1,140 @@
|
||||
use std::io::Error;
|
||||
use std::net::TcpStream;
|
||||
use std::sync::mpsc;
|
||||
use std::sync::mpsc::{Sender, Receiver};
|
||||
use std::thread;
|
||||
|
||||
use image::DynamicImage;
|
||||
|
||||
use painter::Painter;
|
||||
use painter_handle::PainterHandle;
|
||||
use pix_client::PixClient;
|
||||
use rect::Rect;
|
||||
|
||||
|
||||
|
||||
/// A pixflut instance
|
||||
pub struct PixCanvas {
|
||||
host: String,
|
||||
painter_count: usize,
|
||||
painter_handles: Vec<PainterHandle>,
|
||||
size: (u32, u32),
|
||||
offset: (u32, u32),
|
||||
}
|
||||
|
||||
impl PixCanvas {
|
||||
/// Create a new pixelflut canvas.
|
||||
pub fn new(
|
||||
host: &str,
|
||||
painter_count: usize,
|
||||
size: (u32, u32),
|
||||
offset: (u32, u32),
|
||||
) -> PixCanvas {
|
||||
// Initialize the object
|
||||
let mut canvas = PixCanvas {
|
||||
host: host.to_string(),
|
||||
painter_count,
|
||||
painter_handles: Vec::with_capacity(painter_count),
|
||||
size,
|
||||
offset,
|
||||
};
|
||||
|
||||
// Show a status message
|
||||
println!("Starting painter threads...");
|
||||
|
||||
// Spawn some painters
|
||||
canvas.spawn_painters();
|
||||
|
||||
// Return the canvas
|
||||
canvas
|
||||
}
|
||||
|
||||
/// Spawn the painters for this canvas
|
||||
fn spawn_painters(&mut self) {
|
||||
// Spawn some painters
|
||||
for i in 0..self.painter_count {
|
||||
// Determine the slice width
|
||||
let width = self.size.0 / (self.painter_count as u32);
|
||||
|
||||
// Define the area to paint per thread
|
||||
let painter_area = Rect::from(
|
||||
(i as u32) * width,
|
||||
0,
|
||||
width,
|
||||
self.size.1,
|
||||
);
|
||||
|
||||
// Spawn the painter
|
||||
self.spawn_painter(painter_area);
|
||||
}
|
||||
}
|
||||
|
||||
/// Spawn a single painter in a thread.
|
||||
fn spawn_painter(&mut self, area: Rect) {
|
||||
// Get the host that will be used
|
||||
let host = self.host.to_string();
|
||||
|
||||
// Redefine the offset to make it usable in the thread
|
||||
let offset = (self.offset.0, self.offset.1);
|
||||
|
||||
// Create a channel to push new images
|
||||
let (tx, rx): (Sender<DynamicImage>, Receiver<DynamicImage>)
|
||||
= mpsc::channel();
|
||||
|
||||
// Create the painter thread
|
||||
let thread = thread::spawn(move || {
|
||||
// Create a new stream
|
||||
let stream = create_stream(host)
|
||||
.expect("failed to open stream to pixelflut");
|
||||
|
||||
// Create a new client
|
||||
let client = PixClient::new(stream);
|
||||
|
||||
// Create a painter
|
||||
let mut painter = Painter::new(
|
||||
client,
|
||||
area,
|
||||
offset,
|
||||
None
|
||||
);
|
||||
|
||||
// Do some work
|
||||
loop {
|
||||
// Work
|
||||
painter.work()
|
||||
.expect("Painter failed to perform work");
|
||||
|
||||
// Update the image to paint
|
||||
if let Ok(image) = rx.try_recv() {
|
||||
painter.set_image(image);
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
// Create a new painter handle, pust it to the list
|
||||
self.painter_handles.push(
|
||||
PainterHandle::new(
|
||||
thread,
|
||||
area,
|
||||
tx,
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
// Update the image that is being rendered for all painters.
|
||||
pub fn update_image(&mut self, image: &mut DynamicImage) {
|
||||
// Update the image for each specific painter handle
|
||||
for handle in &self.painter_handles {
|
||||
handle.update_image(image);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
/// Create a stream to talk to the pixelflut server.
|
||||
///
|
||||
/// The stream is returned as result.
|
||||
fn create_stream(host: String) -> Result<TcpStream, Error> {
|
||||
TcpStream::connect(host)
|
||||
}
|
||||
75
src/pix_client.rs
Normal file
75
src/pix_client.rs
Normal file
@@ -0,0 +1,75 @@
|
||||
extern crate bufstream;
|
||||
|
||||
use std::io::Error;
|
||||
use std::io::prelude::*;
|
||||
use std::net::TcpStream;
|
||||
|
||||
use self::bufstream::BufStream;
|
||||
|
||||
use color::Color;
|
||||
|
||||
|
||||
|
||||
/// A pixelflut client.
|
||||
///
|
||||
/// This client uses a stream to talk to a pixelflut panel.
|
||||
/// It allows to write pixels to the panel, and read some status.
|
||||
///
|
||||
/// The client provides an interface for other logic to easily talk
|
||||
/// to the pixelflut panel.
|
||||
pub struct PixClient {
|
||||
stream: BufStream<TcpStream>,
|
||||
}
|
||||
|
||||
impl PixClient {
|
||||
/// Create a new client instance.
|
||||
pub fn new(stream: TcpStream) -> PixClient {
|
||||
PixClient {
|
||||
stream: BufStream::new(stream),
|
||||
}
|
||||
}
|
||||
|
||||
/// Write a pixel to the given stream.
|
||||
pub fn write_pixel(&mut self, x: u32, y: u32, color: &Color) -> Result<(), Error> {
|
||||
// Write the command to set a pixel
|
||||
self.write_command(
|
||||
format!("PX {} {} {}", x, y, color.as_hex()),
|
||||
)
|
||||
}
|
||||
|
||||
// /// Read the size of the screen.
|
||||
// fn read_screen_size(&mut self) {
|
||||
// // Read the screen size
|
||||
// let size = self
|
||||
// .write_read_command("SIZE".into())
|
||||
// .expect("Failed to read screen size");
|
||||
//
|
||||
// // TODO: Remove this after debugging
|
||||
// println!("Read size: {}", size);
|
||||
// }
|
||||
|
||||
/// Write the given command to the given stream.
|
||||
fn write_command(&mut self, cmd: String) -> Result<(), Error> {
|
||||
// Write the pixels and a new line
|
||||
self.stream.write(cmd.as_bytes())?;
|
||||
self.stream.write("\n".as_bytes())?;
|
||||
|
||||
// Everything seems to be ok
|
||||
Ok(())
|
||||
}
|
||||
|
||||
// /// Write the given command to the given stream, and read the output.
|
||||
// fn write_read_command(&mut self, cmd: String) -> Result<String, Error> {
|
||||
// // Write the command
|
||||
// self.write_command(cmd);
|
||||
//
|
||||
// // Read the output
|
||||
// let mut buffer = String::with_capacity(CMD_READ_BUFFER_SIZE);
|
||||
// println!("Reading line...");
|
||||
// self.stream.read_line(&mut buffer)?;
|
||||
// println!("Done reading");
|
||||
//
|
||||
// // Return the read string
|
||||
// Ok(buffer)
|
||||
// }
|
||||
}
|
||||
Reference in New Issue
Block a user