Async Image Loading - Speed Test
Monkey Targets Forums/Android/Async Image Loading - Speed Test
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| Hiya guys! I've been trying to implement LoadImageAsync for the different targets. I've been getting good results with GLFW, and reasonable results with iOS. But Android doesn't seem to be loading asynchronously at all. Here's the code that I'm using: [monkeycode] Strict Import mojo Class Game Extends App Global streamedImage:StreamedImage Method OnCreate:Int() SetUpdateRate(60) streamedImage = New StreamedImage( "large_image.jpg", 0, 0 ) Return 0 End Method OnUpdate:Int() UpdateAsyncEvents() Return 0 End Method OnRender:Int() Cls If streamedImage.image <> Null DrawImage( streamedImage.image, 0, 0 ) EndIf DrawText( "ms: " + Millisecs(), 0, 0 ) Return 0 End End Function Main:Int() New Game Return 0 End Class StreamedImage Implements IOnLoadImageComplete Field image:Image Method New( path:String, x:Int, y:Int ) LoadImageAsync( path, 1, Image.DefaultFlags, Self ) End Method OnLoadImageComplete:Void( image:Image,path:String,source:IAsyncEventSource ) Self.image = image End End [/monkeycode] The ms text is a Millisecs() print out that I use to see if the Update and Render calls are happening while the loading is going on in the background. For GLFW it's smooth all the time, for iOS it's great unless you try to load something huge! But Android stops dead to load then starts again once loading is complete. Replace large_image.jpg with a large image file. Mine is a 2048x2048 6MB jpg. If I could get descriptions of how the code works from anyone building for android, as well as information about your devices, that would be great. Also, if anyone would like to optimize or correct my code, please do! I'd appreciate it. There's very little discussion on this on the forums and it would be great to get more examples of how people are using this. |
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| I tried using custom AsyncLoaders for buffers with MonkeyV66 and found a lot of bugs. But your problem sounds like Android is not threading the LoadSurface() call properly. I can try to test this later. |
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| @AdamRedwoods: Thanks for the feedback. I'm looking at integrating Async loading with a larger framework that I use for my games. I guess it still doesn't work as expected across all platforms. I wonder if the Android loading is a symptom of a bug in the Monkey generated code or an attribute of Android. Any test results would be great! Cheers! |
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