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  LWJGL3 and Android Redux  (Read 14624 times)
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Offline kappa
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JGO Kernel


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« Reply #30 - Posted 2017-02-17 12:20:45 »

What about OpenJDK (Zulu) on Android?

Cas Smiley
or what about Java SE Embedded, they already have ARM builds, if it can be made to run on Android devices, performance should be much better than ART's.
Offline princec

« JGO Spiffy Duke »


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« Reply #31 - Posted 2017-02-17 12:31:40 »

Licensing wank :/

Hence Zulu, which is nice GPL2 code and probably a lot less bother in general.

Cas Smiley

Offline kappa
« League of Dukes »

JGO Kernel


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« Reply #32 - Posted 2017-02-17 14:47:23 »

Licensing wank :/
Ah right, looking at the pricing for the licence, it seems pretty expensive and not worth it for distributing games even if it did work on android.

Zulu Embedded does look nice, but can't find any information about it running on Android.
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Offline princec

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« Reply #33 - Posted 2017-02-17 14:58:12 »

Zulu basically runs atop Linux. It's armhf native code, which means with the tiniest bit of glue it should be invokable as a standard embedded JVM using JNI and the Android NDK. Presumably headless.

Cas Smiley

Offline kappa
« League of Dukes »

JGO Kernel


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« Reply #34 - Posted 2017-02-17 15:06:35 »

The main thing would be if it supports the Hotspots JIT on ARM.

There is the OpenJDK 9 Android Port but seems like it only supports the Zero Interpreter on ARM. Not sure if the speed hit will make it unusable but might get round some of ART specific issues raised by Spasi. They also have a similar port to iOS.
Offline princec

« JGO Spiffy Duke »


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« Reply #35 - Posted 2017-02-17 18:45:58 »

Zulu is the real deal - full speed, Hotspotted JIT for ARMhf. It's fast-as, I've tried it Smiley

Cas Smiley

Online Spasi
« Reply #36 - Posted 2017-02-20 16:21:29 »

The example Android Studio project is now available at LWJGL/android-test. The README includes build instructions.

For those that simply want to try it out, you can find arm64-v8a binaries here (warning: unsigned, built on my workstation):

gears-debug.apk
hellovulkan-debug.apk
lwjgl.aar
Offline princec

« JGO Spiffy Duke »


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Eh? Who? What? ... Me?


« Reply #37 - Posted 2017-02-20 17:29:12 »

Gears & Vulkan works a treat here (Nexus 5X, Android 7.1)! Well done, that's awesome stuff. Gives me the urge to play with Android again.
Anybody with time care to see if they can get Zulu to invoke using NDK?

Cas Smiley

Offline Catharsis

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TyphonRT rocks!


« Reply #38 - Posted 2017-02-21 01:53:44 »

Once again a solid effort Spasi! I just sent off the business card mini-flyer for GDC and beyond pimping this major LWJGL announcement. Here it is (looks like the forum cut it off / it's also a link to the image):



I'm going to beat the street and even bit the bullet further and upgraded to a full GDC pass so to not miss any bloggers and other press that might pick up a story. Fingers crossed!  As mentioned in PM I'll try and get around to over the weekend creating an in-depth tutorial wiki entry with step by step picts.

Alright... dev on Android and beyond is going to be exciting from here on out!  Grin


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