Flash actionscript 3.0 pass sound to function

#Flash actionscript 3.0 pass sound to function code#
#Flash actionscript 3.0 pass sound to function series#

Since the new version concatenates the join results we should expect it to take a little bit longer than the original.

The test environment is a little different, but it does the original test in 108 milliseconds for AS3 and 4 milliseconds for JavaScript. These results mostly reflect what we saw last week with the 100-to-3 advantage of JavaScript over AS3.

ASC 2.0 build 352231 ( -debug=false -verbose-stacktraces=false -inline).

Release version of Flash Player 11.7.700.169.

I ran this test in the following environment:

#Flash actionscript 3.0 pass sound to function code#

Hopefully this is a decent simulation of a large offloaded task that would be typical for code hoping to use JavaScript as an optimization. Since the JavaScript function does all 500 joins in one function call rather than calling JavaScript 500 times, the overhead of calling the JavaScript function is reduced. There is a rather large marshalling cost to pass the Array to JavaScript but the return value marshalling cost is low since it is simply a number. The JavaScript version of the test has been modified to take the Array, perform the join operations, and return the length of the joined String. The test is modified to concatenate all of the joins into one very long String. So thereвЂ™s a good reason to offload this task to JavaScript if possible. As of last week, JavaScript took 3 milliseconds to do that task while AS3 took 100.

#Flash actionscript 3.0 pass sound to function series#

JavaScript Performance series where an Array is joined into a String many times. The following performance test is based on the first sub-test of the AS3 vs. This and the overhead of the calls themselves are quite expensive, so you really need to minimize the amount of data you transfer between the two languages and the number of JavaScript calls you make. ThereвЂ™s also a marshalling cost to transfer parameters to JavaScript function from AS3 and to transfer return values from JavaScript functions to AS3. For starters your SWF needs to be running in a browser so that there is a JavaScript environment to offload tasks to with ExternalInterface.

LetвЂ™s address the elephants in the room first. TodayвЂ™s article looks for speedups using FlashвЂ™s AS3-to-JavaScript bridge: ExternalInterface. Now that AS3 is performing slower than JavaScript in some areas, should we be looking to optimize our AS3 by offloading tasks to JavaScript? That may sound perverse, but the possibility of major speedups is tempting.