Meet.js: asm.js - native apps in web world
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The document discusses asm.js, a subset of JavaScript that can run at near-native speed and allows for compiling C/C++ applications to run as web apps without plugins. It covers Emscripten, an LLVM-to-JavaScript compiler that produces asm.js code, how asm.js compares to regular JavaScript, interacting with the browser, automation techniques, using JavaScript from C++, asm.js communities and example projects.
Meet.js: asm.js - native apps in web world
- 1. Asm.js- native apps in web world Micha Ko添miski <@michalkozminski>
- 6. Automation
- 10. Community
- 11. http://beta.unity3d.com/jonas/DT2/ http://vps2.etotheipiplusone.com:30176/redmine/proj ects/emscripten-qt https://github.com/kripken/box2d.js/ http://www.libraw.org/
Editor's Notes
- #3: Emscripten takes in C/C++ code, passes it through LLVM, and converts the LLVM-generated bytecode into Asm.js. If the compiled Asm.js code is doing some rendering then it is most likely being handled by WebGL (and rendered using OpenGL).
- #4: Works with old browsers, lazy compile (we can skip evaluation by wrapping code in function, eval), hard to debug, 2 compilers: Mandreel, Emscripten(in this presentation) types, no garbage collection
- #5: There are to ways that we can interact with browser. There are 2 ways to interact expose c++ methods to javascript or go other hipster way and show js libs to our c++ code
- #9: Lets go other way emscripten offers us also evaluation of javascript inside c++. We use for that val type to store global scope.
- #11: Emmscripten supports SDL 1.2 out of box but community added support for QT4 and OpenGL ES, BOX 2D and Unity 3d is supported as alpha.