perf(web-client): enable WASM SIMD instructions (#703)

web-client/iron-remote-gui/pre-build.js

@@ -2,7 +2,12 @@ import { spawn } from 'child_process';
 
 let run = async function (command, cwd) {
     return new Promise((resolve) => {
-        const buildCommand = spawn(command, { stdio: 'pipe', shell: true, cwd: cwd });
+        const buildCommand = spawn(command, {
+            stdio: 'pipe',
+            shell: true,
+            cwd: cwd,
+            env: { ...process.env, RUSTFLAGS: '-Ctarget-feature=+simd128' },
+        });
 
         buildCommand.stdout.on('data', (data) => {
             console.log(`${data}`);

xtask/src/web.rs

@@ -47,6 +47,7 @@ fn build(sh: &Shell, wasm_pack_dev: bool) -> anyhow::Result<()> {
     if wasm_pack_dev {
         run_cmd_in!(sh, IRONRDP_WEB_PATH, "wasm-pack build --dev --target web")?;
     } else {
+        let _env_guard = sh.push_env("RUSTFLAGS", "-Ctarget-feature=+simd128");
         run_cmd_in!(sh, IRONRDP_WEB_PATH, "wasm-pack build --target web")?;
     }