emscripten

Generate Web Assembly from CMake Project with a Specified HTML Output

由 孤街醉人 提交于 2020-05-12 09:04:50
问题 I have a CMake Project that I want to compile to Web assembly. To do so I used the following commands from the base folder of the project: mkdir build cd build cmake .. -DCMAKE_TOOLCHAIN_FILE=/home/ubuntu/emsdk/emscripten/1.38.6/cmake/Modules/Platform/Emscripten.cmake -G "Unix Makefiles" This successfully (or at least I think) generates a .wasm file and a .js file as well as the various cmake and make files . I also want it to generate an html file, like you can with emcc (ie. emcc example.c

Generate Web Assembly from CMake Project with a Specified HTML Output

由 此生再无相见时 提交于 2020-05-12 09:04:24
问题 I have a CMake Project that I want to compile to Web assembly. To do so I used the following commands from the base folder of the project: mkdir build cd build cmake .. -DCMAKE_TOOLCHAIN_FILE=/home/ubuntu/emsdk/emscripten/1.38.6/cmake/Modules/Platform/Emscripten.cmake -G "Unix Makefiles" This successfully (or at least I think) generates a .wasm file and a .js file as well as the various cmake and make files . I also want it to generate an html file, like you can with emcc (ie. emcc example.c

WebAssembly闲聊（1）工具的配置和一些踩坑

由 微笑、不失礼 提交于 2020-04-28 16:27:42
部门组长要求来杭州实习前，要学习一些webassembly的用法和具体的应用场景，于是最近在家里买了本书加上百度，开始了自学。 要在电脑中跑起webassembly，我们首先得安装好Emscripten工具链，配置相关的变量，此过程有点繁琐，且踩坑不少，于是写一篇文章做了个总结。 如何去下载 我们在下载之前，首先得下好Node.js、git以及python（记得设置好相应的环境变量，本文不做赘述） 关于webassembly的工具，Emscripten，获取来源为github远程拉取。（当然你也可以直接在官网下载，这里不做介绍） git clone https://github.com/emscripten-core/emsdk.git 复制代码 得到一份名为emsdk的文件夹，文件夹内部装有的就是其SDK工具，我将此文件夹放置到磁盘固定位置保存。（位置大家可以自由去选择~） 如何去安装 我们进入到emsdk的文件夹，使用git bush打开git控制台窗口，因为我们guthub地址拉取的很可能不是最新版的SDK，所以我们要重新下载最新版： $ ./emsdk.py install latest 复制代码 ( 踩坑：我们在安装完python后，如果没有在./emssdk后面加上.py后缀，会发生permission reject之类，有关python的错误，必须加上.py后缀 )

ZooTeam 前端周刊｜第 78 期

由 好久不见. 提交于 2020-04-18 15:18:51
ZooTeam 前端周刊｜第 78 期 浏览更多往期小报，请访问： weekly.zoo.team 飞猪微前端实践：统一运营工作台的解决方案 解决痛点，效能提升，飞猪运营工作台微前端实践力求用技术给业务带来差异化的价值。 交互的本源 —— 对渐进式交互优化路径的初步探索 · 语雀 本文尝试从数据和逻辑的角度，对业务系统中的各种交互作一个归类，简单探索其中一些共性，并以此作为渐进式交互优化的一种依据。 深入 Nodejs 源码探究 CPU 信息的获取与利用率计算 本节会先从 Linux 下的 CPU 利用率进行一个简单讲解做一下前置知识铺垫，之后会深入 Nodejs 源码，去探讨如何获取 CPU 信息及计算 CPU 某时间段的利用率... (1) 当浏览器全面禁用三方 Cookie - 掘金 苹果公司前不久对 Safari 浏览器进行一次重大更新，这次更新完全禁用了第三方 Cookie，这意味着，默认情况下，各大广告商或网站将无法对你的个人隐私进行追踪。而微软和 Mozilla 等也纷纷采取了措施禁用第三方 Cookie，但是由于这些浏览器市场份... Node.js 中的 stream 模块详解 流的英文stream，流（Stream）是一个抽象的数据接口，Node.js中很多对象都实现了流，流是EventEmitter对象的一个实例，总之它是会冒数据（以 Buffer 为单位）

How to do file inputs via node.js using emscripten?

由 Deadly 提交于 2020-04-16 04:31:28
问题 I have a C++ project that I have converted into javascript using emscripten. I need help with implementing file input into the program via node. As I understand it the default file system in emscripten uses preloaded data that can only be done on a web page or web worker. I need mine to work with node.js on the command line. Looking at the documentation I see that there's a way to use NODEFS instead of the default MEMFS which should allow me to do this. However, I'm unsure how I'm supposed to

How load an emscripten generated module with es6 import?

由 自闭症网瘾萝莉.ら 提交于 2020-03-23 07:59:49
问题 I am trying to import a module generated with emscripten as a es6 module. I am trying with the basic example from emscripten doc. This is the command I am using to generate the js module from the C module: emcc example.cpp -o example.js -s EXPORTED_FUNCTIONS="['_int_sqrt']" -s EXTRA_EXPORTED_RUNTIME_METHODS="['ccall', 'cwrap']" -s EXPORT_ES6=1 -s MODULARIZE=1 The C module : #include <math.h> extern "C" { int int_sqrt(int x) { return sqrt(x); } } Then importing the generated js module: <

What version of LLVM does the latest emscripten use?

由 时光怂恿深爱的人放手 提交于 2020-03-02 09:30:11
问题 What version of LLVM does the latest emscripten use? I googled for this quite a while but could not find any info. The background is that I've got some C++ code that requires clang-5.0 - what are the chances that it would compile with emscripten? Or at least code that needs clang-4.0? 回答1: The latest version of emscripten uses clang version 4: $ emcc -v emcc (Emscripten gcc/clang-like replacement + linker emulating GNU ld) 1.37.21 clang version 4.0.0 (https://github.com/kripken/emscripten

What version of LLVM does the latest emscripten use?

由 自作多情 提交于 2020-03-02 09:30:09
问题 What version of LLVM does the latest emscripten use? I googled for this quite a while but could not find any info. The background is that I've got some C++ code that requires clang-5.0 - what are the chances that it would compile with emscripten? Or at least code that needs clang-4.0? 回答1: The latest version of emscripten uses clang version 4: $ emcc -v emcc (Emscripten gcc/clang-like replacement + linker emulating GNU ld) 1.37.21 clang version 4.0.0 (https://github.com/kripken/emscripten

Emscripten malloc and free across JS and C++

由 浪子不回头ぞ 提交于 2020-03-01 07:43:33
问题 Suppose I allocate some memory M in Javascript via Emscripten _malloc (Javascript). Am I allowed to pass ownership of M into a marshaled C++ function that calls free (C++) on it? 回答1: Yes. In Emscripten, the C++ version of malloc is converted to Module._malloc() in JavaScript; likewise Module._free() is the same as C++'s free(). 回答2: take a look at this code , this is a piece of source code in library.js about emscripten free: function() { #if ASSERTIONS == 2 Runtime.warnOnce('using stub free

Emscripten malloc and free across JS and C++

由 我只是一个虾纸丫 提交于 2020-03-01 07:43:25
问题 Suppose I allocate some memory M in Javascript via Emscripten _malloc (Javascript). Am I allowed to pass ownership of M into a marshaled C++ function that calls free (C++) on it? 回答1: Yes. In Emscripten, the C++ version of malloc is converted to Module._malloc() in JavaScript; likewise Module._free() is the same as C++'s free(). 回答2: take a look at this code , this is a piece of source code in library.js about emscripten free: function() { #if ASSERTIONS == 2 Runtime.warnOnce('using stub free
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