emscripten

In JavaScript I have a list of "lines", each of which consists of indefinite number of "points", each of which has a form of [x, y] . So it is a 3D ragged array. Now I need to pass it to my C++ code with the help from emscripten ( embind ). Here's declaration of the C++ function: Eigen::MatrixXd f(const std::vector<std::vector<std::vector<double>>>& lines); And I would like to get a list of lists ( [[m11, m12],[m22, m22],...] ) in JavaScript after calling f . How to write the binding code in this case (the stuff inside EMSCRIPTEN_BINDINGS , for example)? UPDATE : I can now pass the JavaScript

I was playing with WebAssembly and so far and I was able to manage emscripten compile my test C++ project to wasm file em++ provides me 2 files i.e. mainTest.js mainTest.wasm When I load mainTest.js in my html page then I get a JavaScript object called " Module ". I did found how to call C++/wasm methods from javascript i.e. something like: var myTestInteger = Module._callMyTestMethod(); and read strings from the Module.wasmMemory.buffer , but I do NOT understand how to call JavaScript from C++ code. i.e. I would like to be able to do something like that: #ifdef __cplusplus extern "C" { #endif

I want to make CMake and Emscripten friends. Didn't find more or less informative documentation on the Emscripten project website, but they provide CMake toolchain file so I think it should be possible. So far very basic compilation without advanced parameters works fine, but I have issues while using embind and preloading files. Linking process seems to miss Emscripten "binaries" and produces warnings for all embind related functions like this one: warning: unresolved symbol: _embind_register_class which results in respective errors while loading compiled JS file in rowser. No .data file is

I'm trying to use Emscripten to turn a C library into a portable JavaScript module, that will be loaded by an AMD (such as Require.JS) and provide access to its functions and things: require("vendor/mylib.js", function(mylib) { mylib.function1(); }); However, I've seen that Emscripten pollutes the global namespace with lots of variables, which is against the premise that modules should be independent and not collide with other loaded modules. So the question is: What's the best way to use Emscrpiten with AMDs? Is there a way I can tell Emscripten to not leak anything to global ? There are 2

I am currently working on a personal Node.js (>=8.0.0) project which requires me to call C subroutines (to improve execution time). I am trying to use WebAssembly to do this since I need my final code to be compatible when opened in a browser. I have used Emscripten to compile C code into WebAssembly, and do not know how to proceed after this. Any help in the right direction would be great. Thanks! yushulx You can build a .wasm file ( standalone ) without JS glue file. Someone has answered the similar question . Create a test.c file: int add(int a, int b) { return a + b; } Build the standalone

I'm currently using Emscripten to compile a basic C function into JavaScript to use within a React Native project. However, when I import Module from inside React code, the Module object is empty. This occurs in both React and React Native projects. Running index.js in my terminal with node ./index.js returns the expected result. I'm compiling ping.c and outputting ping.js with this command: emcc ping.c -o ping.js -s WASM=0 -s EXPORTED_FUNCTIONS='["_pingIt"]' ping.c: #include <stdio.h> #include <emscripten.h> EMSCRIPTEN_KEEPALIVE int pingIt() { return 1; } index.js: let Module = require('.