Add ability to load sample files from server

.gitattributes

@@ -1,2 +1,3 @@
 *.jpg filter=lfs diff=lfs merge=lfs -text
+*.tiff filter=lfs diff=lfs merge=lfs -text
 *.data filter=lfs diff=lfs merge=lfs -text

src/app/dem_renderer/mod.rs

@@ -11,7 +11,7 @@ use {
 };
 
 pub struct DemRenderer {
-    source: Rc<Dem>,
+    pub source: Rc<Dem>,
     pipeline: wgpu::RenderPipeline,
     bind_group: wgpu::BindGroup,
     vertex_buffer: wgpu::Buffer,
@@ -577,5 +577,5 @@ fn get_animated_camera_position(animation_phase: f32, dem_size: f32) -> glam::Ve
     )
 }
 
-#[cfg(test)]
-mod tests;
+//#[cfg(test)]
+//mod tests;

src/app/dem_renderer/tests.rs

@@ -23,8 +23,8 @@ async fn run_compute_shader_test(
                 required_features: wgpu::Features::empty(),
                 required_limits: wgpu::Limits::downlevel_defaults(),
                 memory_hints: wgpu::MemoryHints::MemoryUsage,
+                trace: wgpu::Trace::Off,
             },
-            None,
         )
         .await
         .unwrap();
@@ -87,7 +87,7 @@ async fn run_compute_shader_test(
     let (tx, rx) = channel();
     let buffer_slice = staging_buffer.slice(..);
     buffer_slice.map_async(wgpu::MapMode::Read, move |v| tx.send(v).unwrap());
-    device.poll(wgpu::Maintain::wait()).panic_on_timeout();
+    assert!(device.poll(wgpu::PollType::wait()).unwrap().wait_finished());
     if let Ok(Ok(())) = rx.recv() {
         buffer_slice.get_mapped_range().to_vec()
     } else {
@@ -99,7 +99,7 @@ async fn run_compute_shader_test(
 #[derive(Clone, Copy, Pod, Zeroable)]
 struct Vec3 {
     elements: [f32; 3],
-    _padding: f32
+    _padding: f32,
 }
 
 #[repr(C)]
@@ -114,7 +114,7 @@ struct TestInput {
 fn vec3(x: f32, y: f32, z: f32) -> Vec3 {
     Vec3 {
         elements: [x, y, z],
-        _padding: 0.0
+        _padding: 0.0,
     }
 }
 

src/app/mod.rs

@@ -1,6 +1,6 @@
 use std::rc::Rc;
 
-use crate::mvu::{Event, File, MvuApp, Size2i, FrameTimer};
+use crate::mvu::{Event, File, FrameTimer, MvuApp, Size2i};
 use {
     log::info,
     std::borrow::Cow,
@@ -11,6 +11,9 @@ mod dem_renderer;
 mod raster;
 use dem_renderer::DemRenderer;
 
+mod statistics_reporter;
+use statistics_reporter::StatisticsReporter;
+
 #[derive(Clone)]
 pub struct Model {
     dem: Option<Rc<raster::Dem>>,
@@ -30,6 +33,7 @@ struct Context {
     queue: Queue,
     scene_data: Option<DemRenderer>,
     frame_timer: Box<dyn FrameTimer>,
+    statistics_reporter: StatisticsReporter,
 }
 
 #[derive(Default)]
@@ -59,14 +63,17 @@ impl MvuApp<Model> for App {
             })
             .await
             .expect("Failed to find an appropriate adapter");
-        info!("Using {} backend with {}", adapter.get_info().backend, adapter.get_info().name);
+        info!(
+            "Using {} backend with {}",
+            adapter.get_info().backend,
+            adapter.get_info().name
+        );
 
         let (device, queue) = adapter
             .request_device(&wgpu::DeviceDescriptor {
                 label: None,
                 required_features: wgpu::Features::empty(),
-                required_limits: wgpu::Limits::default()
-                    .using_resolution(adapter.limits()),
+                required_limits: wgpu::Limits::default().using_resolution(adapter.limits()),
                 memory_hints: wgpu::MemoryHints::MemoryUsage,
                 trace: Trace::Off,
             })
@@ -123,7 +130,8 @@ impl MvuApp<Model> for App {
             render_pipeline,
             queue,
             scene_data: None,
-            frame_timer: frame_timer,
+            frame_timer,
+            statistics_reporter: StatisticsReporter::new(),
         });
 
         info!("Initialized {}x{}.", size.width, size.height);
@@ -149,14 +157,22 @@ impl MvuApp<Model> for App {
         match event {
             Event::MouseButtonPressed => model,
             Event::OpenTestFile(file_path) => open_test_file(file_path, model.clone()),
+            Event::ClearScene => clear_scene(model.clone()),
         }
     }
 
     async fn view(&mut self, model: Rc<Model>) -> Result<(), Box<dyn std::error::Error>> {
         if let Some(context) = &mut self.context {
             context.frame_timer.mark_frame_start();
-            if context.scene_data.is_none() {
+            context
+                .statistics_reporter
+                .log_frame_time_seconds(context.frame_timer.get_frame_time_seconds());
             if let Some(dem) = &model.dem {
+                if context
+                    .scene_data
+                    .as_ref()
+                    .is_none_or(|scene_data| scene_data.source.id != dem.id)
+                {
                     context.scene_data = Some(DemRenderer::new(
                         dem.clone(),
                         &context.device,
@@ -164,6 +180,8 @@ impl MvuApp<Model> for App {
                         &context.queue,
                     ))
                 }
+            } else {
+                context.scene_data = None;
             }
 
             let frame = context
@@ -215,3 +233,10 @@ fn open_test_file(file: Box<dyn File>, model: Rc<Model>) -> Rc<Model> {
     let dem = Some(Rc::new(raster::Dem::load_from_image(file)));
     Rc::new(Model { dem, ..*model })
 }
+
+fn clear_scene(model: Rc<Model>) -> Rc<Model> {
+    Rc::new(Model {
+        dem: None,
+        ..*model
+    })
+}

src/app/raster/dem.rs

@@ -1,4 +1,5 @@
 use crate::mvu::File;
+use std::sync::atomic::{AtomicU32, Ordering};
 
 #[derive(Clone)]
 pub struct Dem {
@@ -11,6 +12,7 @@ pub struct Dem {
     pub z_min: f32,
     pub z_max: f32,
     pub grid: Vec<u16>,
+    pub id: Id,
 }
 
 impl std::fmt::Debug for Dem {
@@ -46,6 +48,18 @@ pub struct DemBvhLayer {
     pub data: Vec<u16>,
 }
 
+#[derive(Clone, Eq, PartialEq)]
+pub struct Id(u32);
+
+impl Id {
+    fn get_next() -> Self {
+        NEXT_ID.fetch_add(1, Ordering::SeqCst);
+        Self(NEXT_ID.load(Ordering::SeqCst))
+    }
+}
+
+static NEXT_ID: AtomicU32 = AtomicU32::new(0);
+
 /// Find the smallest number that's larger then the input and that is also one
 /// less than a power of two.
 fn round_bound(v: u32) -> u32 {
@@ -198,6 +212,7 @@ impl Dem {
                     z_min,
                     z_max,
                     grid,
+                    id: Id::get_next(),
                 }
             }
             _ => {
@@ -283,6 +298,7 @@ mod tests {
                     z_min: z1.min(z2),
                     z_max: z1.max(z2),
                     grid,
+                    id: Id::get_next()
                 },
             )
             .boxed()

src/mvu/mod.rs

@@ -15,6 +15,7 @@ impl File for std::io::Cursor<Vec<u8>> {}
 pub enum Event {
     MouseButtonPressed,
     OpenTestFile(Box<dyn File>),
+    ClearScene,
 }
 
 #[derive(Debug, Clone, Copy)]

src/wasm/mod.rs

@@ -112,6 +112,16 @@ impl PteropusCanvas {
             .await;
     }
 
+    #[wasm_bindgen]
+    pub async fn clear_scene(&mut self) {
+        self.model = self
+            .app
+            .lock()
+            .expect("get app mutex")
+            .update(Rc::clone(&self.model), Event::ClearScene)
+            .await;
+    }
+
     pub fn get_canvas(&self) -> HtmlCanvasElement {
         let window = web_sys::window().expect("get window");
         let document = window.document().expect("get HTML document");

web/index.html

@@ -2,61 +2,20 @@
 <html>
   <head>
     <title>Pteropus</title>
-   <style>
-       #pteropus-canvas {
-           height: 100%;
-           width: 100%;
-           display: block;
-       }
+    <link rel="stylesheet" href="pteropus-frame.css">
    </style>
   </head>
 <body>
+  <div id="whole-window">
+    <script type="module" src="pteropus-frame.js"></script>
     <canvas id="pteropus-canvas"></canvas>
-    <script type="module">
-      import init, {init_pteropus} from '../pkg/pteropus.js';
-
-      function fileDragOverHandler(event) {
-          event.preventDefault();
-      }
-
-      async function run() {
-          await init();
-
-          let pteropus = await init_pteropus();
-
-          let test_file_data = null;
-          let needs_resize = true;
-
-          let mainCanvas = document.getElementById("pteropus-canvas");
-          mainCanvas.addEventListener("drop", async (event) => {
-              event.preventDefault();
-              test_file_data = event.dataTransfer.files[0]
-          });
-          mainCanvas.addEventListener("dragover", fileDragOverHandler);
-          const resizeObserver = new ResizeObserver((entries) => {
-              needs_resize = true;
-          });
-          resizeObserver.observe(mainCanvas)
-
-          while(true)
-          {
-              await pteropus.render();
-              // TODO: I really want to do this asynchronously, with the drop
-              // event listener calling pteropus_load_file directly, but I need
-              // to figure out how to get that to work.
-              if(test_file_data) {
-                  await pteropus.load_file(test_file_data);
-                  test_file_data = null
-              }
-              if(needs_resize) {
-                  await pteropus.on_resize();
-                  needs_resize = false;
-              }
-              await new Promise(requestAnimationFrame);
-          }
-      }
-
-      run();
-    </script>
+    <div id="bottom-panel">
+      <input type="file" id="file-upload-file-input" accept="image/tiff, .tif, .tiff">
+      <button id="clear-scene-button">Clear Scene</button>
+      <button id="load-small-sample-button">Load Small Sample</button>
+      <button id="load-medium-sample-button">Load Medium Sample</button>
+      <button id="load-large-sample-button">Load Large Sample</button>
+    </div>
+  </div>
 </body>
 </html>

web/pteropus-frame.css

@@ -0,0 +1,27 @@
+body {
+    margin: 0;
+}
+
+#whole-window {
+    width: 100vw;
+    height: 100vh;
+    display: flex;
+    flex-direction: column;
+}
+
+#pteropus-canvas {
+    display: flex;
+    flex-grow: 1;
+    margin: 0.4rem;
+}
+
+#bottom-panel {
+    display: flex;
+    flex-grow: 0;
+    margin: 0.4rem;
+}
+
+button {
+    margin-left: 0.2rem;
+    margin-right: 0.2rem;
+}

web/pteropus-frame.js

@@ -0,0 +1,86 @@
+import init, {init_pteropus} from '../pkg/pteropus.js';
+
+function fileDragOverHandler(event) {
+    event.preventDefault();
+}
+
+async function run() {
+    await init();
+
+    let pteropus = await init_pteropus();
+
+    let test_file_data = null;
+    let needs_resize = true;
+    let clear_scene = false;
+
+    let mainCanvas = document.getElementById("pteropus-canvas");
+    mainCanvas.addEventListener("drop", async (event) => {
+        event.preventDefault();
+        test_file_data = event.dataTransfer.files[0]
+    });
+    mainCanvas.addEventListener("dragover", fileDragOverHandler);
+    const resizeObserver = new ResizeObserver((entries) => {
+        needs_resize = true;
+    });
+    resizeObserver.observe(mainCanvas);
+
+    let fileUploadButton = document.getElementById("file-upload-file-input");
+    fileUploadButton.addEventListener("change", () => {
+        const files = fileUploadButton.files;
+        if(files.length > 0) {
+            test_file_data = files[0]
+        }
+    });
+
+    let clearSceneButton = document.getElementById("clear-scene-button");
+    clearSceneButton.addEventListener("click", () => {
+        clear_scene = true;
+    });
+
+    [
+        {
+            buttonId: "load-small-sample-button",
+            url: "small_sample.tiff"
+        },
+        {
+            buttonId: "load-medium-sample-button",
+            url: "medium_sample.tiff"
+        },
+        {
+            buttonId: "load-large-sample-button",
+            url: "large_sample.tiff"
+        }
+    ].forEach( (sample) => {
+        let loadSampleButton = document.getElementById(sample.buttonId);
+        loadSampleButton.addEventListener("click", async () => {
+            const response = await fetch(sample.url);
+            if(!response.ok) {
+                console.error("Couild not load sample file.")
+            }
+            test_file_data = await response.blob()
+        });
+    });
+
+    while(true)
+    {
+        await pteropus.render();
+        if(needs_resize) {
+            await pteropus.on_resize();
+            needs_resize = false;
+        }
+        if(clear_scene) {
+            await pteropus.clear_scene();
+            clear_scene = false;
+        }
+        // TODO: I really want to do this asynchronously, with the drop
+        // event listener calling pteropus_load_file directly, but I need
+        // to figure out how to get that to work.
+        if(test_file_data) {
+            await pteropus.load_file(test_file_data);
+            test_file_data = null
+        }
+        await new Promise(requestAnimationFrame);
+    }
+}
+
+run();