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Use view instead of subarray in WebGL example

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Pointed out in #1615!
This commit is contained in:
Alex Crichton 2019-06-23 08:29:47 -07:00
parent a1fc270f2a
commit 04aea4e9ab
1 changed files with 1 additions and 7 deletions
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8
examples/webgl/src/lib.rs
View File

@ -1,4 +1,3 @@
use js_sys::WebAssembly;
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};
@ -37,15 +36,10 @@ pub fn start() -> Result<(), JsValue> {
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 memory_buffer = wasm_bindgen::memory()
.dyn_into::<WebAssembly::Memory>()?
.buffer();
let vertices_location = vertices.as_ptr() as u32 / 4;
let vert_array = js_sys::Float32Array::new(&memory_buffer)
.subarray(vertices_location, vertices_location + vertices.len() as u32);
let buffer = context.create_buffer().ok_or("failed to create buffer")?; let buffer = context.create_buffer().ok_or("failed to create buffer")?;
context.bind_buffer(WebGlRenderingContext::ARRAY_BUFFER, Some(&buffer)); context.bind_buffer(WebGlRenderingContext::ARRAY_BUFFER, Some(&buffer));
let vert_array = unsafe { js_sys::Float32Array::view(&vertices) };
context.buffer_data_with_array_buffer_view( context.buffer_data_with_array_buffer_view(
WebGlRenderingContext::ARRAY_BUFFER, WebGlRenderingContext::ARRAY_BUFFER,
&vert_array, &vert_array,