android non-native

[kaliber]

hi all, i try to create live wallpaper using irrlicht.
but live wallpaper use the draw iteration inside java.
how to make the draw iteratiin inside java and not using native activity ?

thanks in advance

[Nadro]

Irrlicht use NDK, but you can mix JAVA and C++ via jni calls, so you will be able to do iteration in JAVA and use Irrlicht for rendering.

[kaliber]

well yes i understand that irrlicht use NDK ,
my problem is in the example 08 the IrrlichtDevice need an android_app object which passed from native android_main function.

Code: Select all

 
void android_main(struct android_app* app)
{
    app_dummy();
 
    struct irr::SIrrlichtCreationParameters p;
    p.DriverType = video::EDT_OGLES2;
    
    // The android app object is needed by the irrlicht device.
    p.PrivateData = app;
        
    p.WindowSize = core::dimension2d<u32>(1280,800);
    IrrlichtDevice *device = createDeviceEx(p);
    
}
 

and if i use JNI how to create IrrlichtDevice with android_app object....
here is what i try :

Code: Select all

 
void load()
{
    __android_log_print(ANDROID_LOG_VERBOSE, APPNAME, "Before Create Device");
        
       device=createDevice( video::EDT_OGLES2, core::dimension2d<u32>(320, 240), 16, false, false, false, 0);
    
    __android_log_print(ANDROID_LOG_VERBOSE, APPNAME, "After Create Device");
    
    driver = device->getVideoDriver();
    smgr = device->getSceneManager();
    
}

and the code stopped at createDevice... any help ... ??

[Nadro]

In your jni code p.PrivateData is empty. It must include android_app data. Currently iOS and Android require createDeviceEx call for create device, simple createDevice doesn't work.

[kaliber]

ok, is that mean i can't use irrlicht for android live wallpaper, yet? or there is another way ?
because android_app data only exist on native activity... CMIIW

[Nadro]

You can't use Irrlicht on Android without native activity (we don't have plans to change this state - support without ndk, even in future). Anyway you can still use some jni calls tricks, but I'm not sure if it's possible for features like a live wallpapers.