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🐛 Fix WebGL warning when switching pages

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This commit is contained in:
Belén Albeza 2025-01-17 13:40:23 +01:00
parent 12ec3b4942
commit 2f80d337ad
3 changed files with 15 additions and 8 deletions
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11
frontend/src/app/render_wasm/api.cljs
View file

@ -460,11 +460,6 @@
:stencil true :stencil true
:alpha true}) :alpha true})
(defn clear-canvas
[]
;; TODO: perform corresponding cleaning
)
(defn resize-viewbox (defn resize-viewbox
[width height] [width height]
(h/call internal-module "_resize_viewbox" width height)) (h/call internal-module "_resize_viewbox" width height))
@ -488,10 +483,14 @@
;; Initialize Wasm Render Engine ;; Initialize Wasm Render Engine
(h/call internal-module "_init" (/ (.-width ^js canvas) dpr) (/ (.-height ^js canvas) dpr)) (h/call internal-module "_init" (/ (.-width ^js canvas) dpr) (/ (.-height ^js canvas) dpr))
(h/call internal-module "_set_render_options" flags dpr)) (h/call internal-module "_set_render_options" flags dpr))
(set! (.-width canvas) (* dpr (.-clientWidth ^js canvas))) (set! (.-width canvas) (* dpr (.-clientWidth ^js canvas)))
(set! (.-height canvas) (* dpr (.-clientHeight ^js canvas)))) (set! (.-height canvas) (* dpr (.-clientHeight ^js canvas))))
(defn clear-canvas
[]
;; TODO: perform corresponding cleaning
(h/call internal-module "_clean_up"))
(defn set-canvas-background (defn set-canvas-background
[background] [background]
(let [rgba (rgba-from-hex background 1)] (let [rgba (rgba-from-hex background 1)]

6
render-wasm/src/main.rs
View file

@ -40,6 +40,12 @@ pub extern "C" fn init(width: i32, height: i32) {
} }
} }
#[no_mangle]
pub extern "C" fn clean_up() {
unsafe { STATE = None }
mem::free_bytes();
}
#[no_mangle] #[no_mangle]
pub extern "C" fn set_render_options(debug: u32, dpr: f32) { pub extern "C" fn set_render_options(debug: u32, dpr: f32) {
let state = unsafe { STATE.as_mut() }.expect("got an invalid state pointer"); let state = unsafe { STATE.as_mut() }.expect("got an invalid state pointer");

6
render-wasm/src/mem.rs
View file

@ -15,8 +15,10 @@ pub extern "C" fn alloc_bytes(len: usize) -> *mut u8 {
} }
pub fn free_bytes() { pub fn free_bytes() {
let buffer = unsafe { BUFFERU8.take() }.expect("uninitialized buffer"); if unsafe { BUFFERU8.is_some() } {
std::mem::drop(buffer); let buffer = unsafe { BUFFERU8.take() }.expect("uninitialized buffer");
std::mem::drop(buffer);
}
} }
pub fn buffer_ptr() -> *mut u8 { pub fn buffer_ptr() -> *mut u8 {