How to enable Native Client in Google Chrome |
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Native Client is now built into the Dev channel of Google Chrome. This page tells you how to enable and use the integrated version of Native Client. Note: For now, the integrated version of Native Client has less functionality than the plug-in. If you want to see everything that Native Client can do, download the tarball and install the plug-in. For details of what's different about the integrated version, see [Known issues] (NativeClientInGoogleChrome#Known_issues.md). How to enable Native Client in Google ChromeDownload Google Chrome, if you don't already have it. Subscribe to the Dev channel. Launch Google Chrome from the command line, adding --enable-nacl. On Mac and Linux, if you're using dev channel release 5.0.375.9 or 5.0.371.0, respectively (or an earlier version), also add --no-sandbox. On Windows, your command should look like this: chrome.exe --enable-naclWarning: We recommend running Google Chrome with the --no-sandbox or --enable-nacl flag only for testing Native Client and not for regular web browsing. How to find and run examples and testsIn any browser, bring up the [Getting Started] (http://nativeclient.googlecode.com/svn/trunk/src/native_client/documentation/getting_started.html) document. You'll follow some鈥攂ut not all鈥攐f its instructions. Specifically:[Get the software] (http://nativeclient.googlecode.com/svn/trunk/src/native_client/documentation/getting_started.html#software). (Download the tarball, extract the files, and make sure you have the right version of Python.)[Start a local HTTP server] (http://nativeclient.googlecode.com/svn/trunk/src/native_client/documentation/getting_started.html#httpd), if one isn't already running on your computer.In Google Chrome, view the Browser Test Page, using localhost for the hostname. For example: http://localhost:5103/scons-out/nacl-x86-32/staging/examples.htmlClick links to examples and tests to run them.When Google Chrome is launched with the --enable-nacl flag, the integrated version of Native Client is used to run the examples and tests. Otherwise, the Native Client plug-in (if installed) is used to run them. The following tests should work in the integrated version of Native Client: Tests that have no audio or graphics: The results of these tests should be the same as if you executed them in Google Chrome using the Native Client plug-in. Mandelbrot performance test: This works because all drawing is from JavaScript; Native Client is used only for calculations. The following examples don't currently work: Examples with graphics (except for the Mandelbrot performance test): This includes everything in the Examples column except the SRPC hello world example.For details about what each example and test contains, see the Examples and Tests page and the README files in the source code. Known issuesGraphics and audio from native code don‘t work unless you’re using the proposed NPAPI improvements ([announcement] (http://groups.google.com/group/native-client-announce/browse_thread/thread/3607403cbc165499), spec). These new 2D and 3D APIs provide access to video and audio.In some Dev-channel builds of Google Chrome, enabling Native Client requires disabling the Google Chrome sandbox.More informationFor information about the design and implementation of Google Chrome, see the Chromium project website. |
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