src/workshop_web.rs

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1//! Thin browser host. JavaScript owns fetch, the clock and input events.2use crate::{workshop::Frame, workshop_surface::WorkshopSurface};3use wasm_bindgen::prelude::*;45#[wasm_bindgen]6pub struct WorkshopRenderer {7    inner: WorkshopSurface,8}910#[wasm_bindgen]11impl WorkshopRenderer {12    // ANCHOR: web-create13    #[wasm_bindgen(js_name = create)]14    pub async fn create(canvas: web_sys::HtmlCanvasElement) -> Result<WorkshopRenderer, JsValue> {15        console_error_panic_hook::set_once();16        let width = canvas.width();17        let height = canvas.height();18        let instance = wgpu::Instance::new(wgpu::InstanceDescriptor::new_without_display_handle());19        let surface = instance20            .create_surface(wgpu::SurfaceTarget::Canvas(canvas))21            .map_err(|e| JsValue::from_str(&e.to_string()))?;22        let inner = WorkshopSurface::new(instance, surface, width, height)23            .await24            .map_err(|e| JsValue::from_str(&e))?;25        Ok(Self { inner })26    }27    // END: web-create2829    pub fn resize(&mut self, width: u32, height: u32) {30        self.inner.resize(width, height);31    }32    pub fn adapter(&self) -> String {33        self.inner.adapter_label.clone()34    }3536    #[wasm_bindgen(js_name = renderRelight)]37    pub fn render_relight(38        &mut self,39        azimuth: f32,40        elevation: f32,41        intensity: f32,42        roughness: f32,43        metallic: f32,44        time: f32,45        yaw: f32,46        mode: u32,47        wrong_normals: bool,48    ) -> Result<bool, JsValue> {49        self.inner50            .render_relight(crate::relight::RelightFrame {51                azimuth,52                elevation,53                intensity,54                roughness,55                metallic,56                time,57                yaw,58                mode,59                wrong_normals,60            })61            .map_err(|e| JsValue::from_str(&e))62    }6364    #[wasm_bindgen(js_name = loadModel)]65    pub fn load_model(&mut self, bytes: &[u8]) -> Result<(), JsValue> {66        self.inner67            .pass68            .load_model(&self.inner.device, bytes)69            .map_err(|e| JsValue::from_str(&e))70    }7172    pub fn render(73        &mut self,74        stage: u32,75        time: f32,76        yaw: f32,77        pitch: f32,78        distance: f32,79        reverse_order: bool,80    ) -> Result<i32, JsValue> {81        self.inner82            .render(Frame {83                stage,84                time,85                yaw,86                pitch,87                distance,88                reverse_order,89            })90            .map(|count| count.map_or(-1, |n| n as i32))91            .map_err(|e| JsValue::from_str(&e))92    }93}94