lks/waterfall-glow-rs
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Increase waterfall size and have it fill the screen

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This commit is contained in:
Lucas Schumacher 2024-05-07 19:23:27 -04:00
parent e37eb169ce
commit 63ec587d08
2 changed files with 32 additions and 34 deletions
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62
src/app.rs
View File

@ -20,6 +20,8 @@ mod deadbeef_rand {
}
use deadbeef_rand::rand;
const WF_SIZE: usize = 1024;
/// We derive Deserialize/Serialize so we can persist app state on shutdown.
pub struct TemplateApp {
// Example stuff:
@ -49,7 +51,7 @@ impl TemplateApp {
// Example stuff:
label: "Hello World!".to_owned(),
value: 2.7,
waterfall: Arc::new(Mutex::new(Waterfall::new(gl, 300, 300, rx))),
waterfall: Arc::new(Mutex::new(Waterfall::new(gl, WF_SIZE, WF_SIZE, rx))),
fft_sender: tx,
}
}
@ -115,41 +117,35 @@ impl eframe::App for TemplateApp {
ui.label(" (OpenGL).");
});
egui::Frame::canvas(ui.style()).show(ui, |ui| {
let (rect, response) =
ui.allocate_exact_size(egui::Vec2::splat(300.0), egui::Sense::drag());
let _angle = response.drag_motion().x * 0.01;
let mut new_data = vec![0_u8; 300];
for data in new_data.iter_mut() {
*data = rand();
}
self.fft_sender.send(new_data).unwrap();
// Clone locals so we can move them into the paint callback:
let waterfall = self.waterfall.clone();
let callback = egui::PaintCallback {
rect,
callback: std::sync::Arc::new(egui_glow::CallbackFn::new(
move |_info, painter| {
waterfall.lock().paint(painter.gl(), _angle);
},
)),
};
ui.painter().add(callback);
});
ui.separator();
ui.add(egui::github_link_file!(
"https://github.com/emilk/eframe_template/blob/main/",
"Source code."
));
ui.with_layout(egui::Layout::bottom_up(egui::Align::LEFT), |ui| {
powered_by_egui_and_eframe(ui);
egui::warn_if_debug_build(ui);
egui::Frame::canvas(ui.style()).show(ui, |ui| {
let available_space = ui.available_size();
let (rect, response) =
ui.allocate_exact_size(available_space, egui::Sense::drag());
let _angle = response.drag_motion().x * 0.01;
let mut new_data = vec![0_u8; WF_SIZE];
for data in new_data.iter_mut() {
*data = rand();
}
self.fft_sender.send(new_data).unwrap();
// Clone locals so we can move them into the paint callback:
let waterfall = self.waterfall.clone();
let callback = egui::PaintCallback {
rect,
callback: std::sync::Arc::new(egui_glow::CallbackFn::new(
move |_info, painter| {
waterfall.lock().paint(painter.gl(), _angle);
},
)),
};
ui.painter().add(callback);
});
});
});
}

4
src/app/waterfall.rs
View File

@ -119,8 +119,10 @@ impl Waterfall {
// Generate something to put into the texture Buffer
let mut buffer = vec![0; width * height];
// Add some stripes to the texture
let stripes = 8;
let slen = width / stripes;
for (i, val) in buffer.iter_mut().enumerate() {
*val = if i % 50 < 25 { 255 } else { 0 };
*val = if i % slen < slen / 2 { 255 } else { 0 };
//*val = 255;
}