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use std::path::PathBuf;
use std::time::Instant;
use wgpu_glyph::{Section, Scale};
use std::sync::{mpsc, Arc, Mutex};
use zerocopy::{AsBytes, FromBytes};
lazy_static! {
pub static ref ABSOLUTE_PATH: PathBuf = std::env::current_dir().unwrap();
pub static ref WINDOW_SIZE_SIZE: wgpu::BufferAddress = std::mem::size_of::<WindowSize>() as wgpu::BufferAddress;
pub static ref ZOOM_SIZE: wgpu::BufferAddress = std::mem::size_of::<Zoom>() as wgpu::BufferAddress;
pub static ref POSITION_SIZE: wgpu::BufferAddress = std::mem::size_of::<Position>() as wgpu::BufferAddress;
pub static ref ITERATIONS_SIZE: wgpu::BufferAddress = std::mem::size_of::<Iterations>() as wgpu::BufferAddress;
pub static ref VERTEX_SIZE: wgpu::BufferAddress = std::mem::size_of::<Vertex>() as wgpu::BufferAddress;
pub static ref JULIA_SIZE: wgpu::BufferAddress = std::mem::size_of::<Julia>() as wgpu::BufferAddress;
}
pub type AtomicDevice = Arc<Mutex<wgpu::Device>>;
#[repr(C)]
#[derive(Clone, Copy, AsBytes, FromBytes)]
pub struct WindowSize {
pub size: [f32; 2]
}
#[repr(C)]
#[derive(Clone, Copy, AsBytes, FromBytes)]
pub struct Zoom {
pub zoom: f32
}
#[repr(C)]
#[derive(Clone, Copy, Debug)]
pub struct Julia {
pub is_julia: bool
}
#[repr(C)]
#[derive(Clone, Copy, Debug, AsBytes, FromBytes)]
pub struct Iterations {
pub iterations: f32
}
impl Default for Iterations {
fn default() -> Self {
Self {
iterations: 100.0
}
}
}
#[repr(C)]
#[derive(Clone, Copy, AsBytes, FromBytes)]
pub struct Vertex {
pub pos: [f32; 2],
}
impl Default for Zoom {
fn default() -> Self {
Self {
zoom: 0.003
}
}
}
#[repr(C)]
#[derive(Debug, Clone, Copy, Default, AsBytes, FromBytes)]
pub struct Position {
pub pos: [f32; 2]
}
trait DigitsCountable {
fn count_digits(self) -> usize;
}
impl DigitsCountable for usize {
fn count_digits(self) -> usize {
let mut number = self;
let mut count: usize = 0;
while number > 0 {
number /= 10;
count += 1;
}
count + 1
}
}
pub struct Changed(pub bool);
impl Changed {
pub fn set(&mut self, state: bool, desc: &str) {
log::info!("Changed to {:?} from {:?}", state, desc);
self.0 = state;
}
}
pub fn fps_command(
device: &AtomicDevice,
glyph_brush: &mut wgpu_glyph::GlyphBrush<()>,
size: &winit::dpi::PhysicalSize,
frame: &wgpu::SwapChainOutput,
past: &mut Instant
) -> wgpu::CommandBuffer {
let mut encoder =
device.lock().unwrap().create_command_encoder(&wgpu::CommandEncoderDescriptor { todo: 0 });
let now = Instant::now();
let time = now - *past;
*past = now;
let fps = (1.0 / time.as_secs_f32()).round() as usize;
let number_section = Section {
text: &format!("{}", fps),
screen_position: (size.width as f32 / 100.0, size.height as f32 / 100.0),
scale: Scale::uniform(32.0),
color: [1.0f32, 1.0f32, 1.0f32, 1.0f32],
..Section::default()
};
let mut number_section_outline = number_section;
number_section_outline.color = [0.0f32, 0.0f32, 0.0f32, 1.0f32];
number_section_outline.scale = Scale::uniform(38.0);
number_section_outline.screen_position.0 -= 3.0f32;
number_section_outline.screen_position.1 -= 3.0f32;
let fps_section = Section {
text: "fps",
screen_position: (size.width as f32 / 100.0 + 16.0 * fps.count_digits() as f32, size.height as f32 / 100.0),
scale: Scale::uniform(32.0),
color: [1.0f32, 1.0f32, 1.0f32, 1.0f32],
..Section::default()
};
let mut fps_section_outline = fps_section;
fps_section_outline.color = [0.0f32, 0.0f32, 0.0f32, 1.0f32];
fps_section_outline.scale = Scale::uniform(38.0);
fps_section_outline.screen_position.0 -= 3.0f32;
fps_section_outline.screen_position.1 -= 3.0f32;
glyph_brush.queue(fps_section_outline);
glyph_brush.queue(fps_section);
glyph_brush.queue(number_section_outline);
glyph_brush.queue(number_section);
glyph_brush.draw_queued(
&mut device.lock().unwrap(),
&mut encoder,
&frame.view,
size.width.round() as u32,
size.height.round() as u32,
).expect("error drawing text");
encoder.finish()
}
use notify::{Watcher, RecursiveMode, RecommendedWatcher};
use std::time::Duration;
pub fn create_watcher(path: &PathBuf) -> (RecommendedWatcher, mpsc::Receiver<notify::DebouncedEvent>) {
let (tx, rx) = mpsc::channel();
let mut watcher: RecommendedWatcher = Watcher::new(tx, Duration::from_millis(500)).unwrap();
watcher.watch(path.clone(), RecursiveMode::NonRecursive).unwrap();
log::info!("Starting watcher on {:?}", path);
(watcher, rx)
}
#[derive(PartialEq)]
pub enum CurrentView {
Single,
Double
}