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Cleaned up memory buffer access

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This commit is contained in:
David Jozis 2018-10-14 13:16:43 -04:00
parent f408310ab7
commit 52128e9baa
1 changed files with 3 additions and 7 deletions
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10
examples/webgl/src/lib.rs
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@ -5,12 +5,7 @@ extern crate web_sys;
use wasm_bindgen::prelude::*; use wasm_bindgen::prelude::*;
use wasm_bindgen::JsCast; use wasm_bindgen::JsCast;
use web_sys::{WebGlProgram, WebGlRenderingContext, WebGlShader}; use web_sys::{WebGlProgram, WebGlRenderingContext, WebGlShader};
use js_sys::{WebAssembly};
#[wasm_bindgen]
extern {
#[wasm_bindgen(js_namespace = Reflect)]
fn get(obj: &JsValue, member: &str) -> JsValue;
}
#[wasm_bindgen] #[wasm_bindgen]
pub fn draw() { pub fn draw() {
@ -51,7 +46,8 @@ pub fn draw() {
context.use_program(Some(&program)); context.use_program(Some(&program));
let vertices: [f32; 9] = [-0.7, -0.7, 0.0, 0.7, -0.7, 0.0, 0.0, 0.7, 0.0]; let vertices: [f32; 9] = [-0.7, -0.7, 0.0, 0.7, -0.7, 0.0, 0.0, 0.7, 0.0];
let vert_array = js_sys::Float32Array::new(&get(&wasm_bindgen::memory(), "buffer")).subarray( let memory_buffer = wasm_bindgen::memory().dyn_into::<WebAssembly::Memory>().unwrap().buffer();
let vert_array = js_sys::Float32Array::new(&memory_buffer).subarray(
&vertices as *const f32 as u32 / 4, &vertices as *const f32 as u32 / 4,
&vertices as *const f32 as u32 / 4 + vertices.len() as u32, &vertices as *const f32 as u32 / 4 + vertices.len() as u32,
); );