Android Port

[hendu]

Depending on your target hw, you may want to use other terrain options such as: http://irrlicht.sourceforge.net/forum/v ... hp?t=48680

[mikkis]

Today I spend hours to make android example to work in my phone. I didnt see anything on the screen (only clearing color works).

Finally I got it to work. I changed

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param.WindowSize = dimension2d<u32>(0,0); // using 0,0 it will automatically set it to the maximal size
 

to

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param.WindowSize = dimension2d<u32>(200,300);
 

so maybe that (0,0) doesnt work with API10 (android 2.3.x)?

[CuteAlien]

Hm, I'm using API10, so that's not the problem.
It usually happens after the APP_CMD_INIT_WINDOW even which is handled in CIrrDeviceAndroid::handleAndroidCommand in CIrrDeviceAndroid.cpp

The code it calls there is the same we use now in the example:

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ANativeWindow* nativeWindow = static_cast<ANativeWindow*>(driver->getExposedVideoData().OGLESAndroid.Window);
    int32_t windowWidth = ANativeWindow_getWidth(app->window);
    int32_t windowHeight = ANativeWindow_getHeight(app->window);
 

We print the result of that as Window size later on in the example so it would be interesting to know what those values are in your device.

Only other reason I coudl think of is that APP_CMD_INIT_WINDOW maybe never get's called in your case for some reason? Wouldn't know why that could happen right now - but you could check if the console contains the message "Android command APP_CMD_INIT_WINDOW" that would help.
You can see that with logcat as described in the example.

[mikkis]

Logcat seems to show sizes right.

E:\CPP\irrlicht-ogl-es\examples\27.HelloWorld_Android\bin>call adb logcat Irrlicht:V *:S
--------- beginning of /dev/log/system
--------- beginning of /dev/log/main
I/Irrlicht( 1287): Irrlicht Engine version 1.9.0
I/Irrlicht( 1287): Waiting for Android activity window to be created.
I/Irrlicht( 1287): Android command APP_CMD_RESUME
I/Irrlicht( 1287): Android command APP_CMD_INIT_WINDOW
I/Irrlicht( 1287): EGL version: 1.400000
I/Irrlicht( 1287): Using renderer: OpenGL ES 2.0 1566933
I/Irrlicht( 1287): Qualcomm
I/Irrlicht( 1287): GL_AMD_compressed_ATC_texture GL_AMD_performance_monitor GL_A
MD_program_binary_Z400 GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_B
GRA8888 GL_EXT_texture_type_2_10_10_10_REV GL_NV_fence GL_OES_compressed_ETC1_RG
B8_texture GL_OES_depth_texture GL_OES_depth24 GL_OES_EGL_image GL_OES_EGL_image
_external GL_OES_element_index_uint GL_OES_fbo_render_mipmap GL_OES_fragment_pre
cision_high GL_OES_get_program_binary GL_OES_packed_depth_stencil GL_OES_rgb8_rg
ba8 GL_OES_standard_derivatives GL_OES_texture_3D GL_OES_texture_float GL_OES_te
xture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_ver
tex_half_float GL_OES_vertex_type_10_10_10_2 GL_QCOM_binning_control GL_QCOM_dri
ver_control GL_QCOM_perfmon_global_mode GL_QCOM_extended_get GL_QCOM_extended_ge
t2 GL_QCOM_tiled_rendering GL_QCOM_writeonly_rendering GL_QCOM_memory_monitor GL
_AMD_compressed_3DC_texture
I/Irrlicht( 1287): Android command APP_CMD_GAINED_FOCUS
I/Irrlicht( 1287): Window size:(240/320)
I/Irrlicht( 1287): Display size:(240/320)
I/Irrlicht( 1287): PNG warning: iCCP: known incorrect sRGB profile
I/Irrlicht( 1287): PNG warning: iCCP: known incorrect sRGB profile
I/Irrlicht( 1287): Loaded texture: media/irrlichtlogo3.png
I/Irrlicht( 1287): Loaded mesh: media/sydney.md2
I/Irrlicht( 1287): Loaded texture: media/img.png
I/Irrlicht( 1287): Android command APP_CMD_PAUSE
I/Irrlicht( 1287): Android command APP_CMD_LOST_FOCUS
I/Irrlicht( 1287): Android command APP_CMD_TERM_WINDOW
I/Irrlicht( 1287): Android command APP_CMD_STOP
I/Irrlicht( 1287): Android command APP_CMD_DESTROY

[CuteAlien]

And APP_CMD_INIT_WINDOW is also run... can't really say I got an idea right now.

[mikkis]

Some debugging. I print width and height in void CIrrDeviceAndroid::handleAndroidCommand(android_app* app, int32_t cmd) method in CIrrDeviceAndroid.cpp:

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            if (device->CreationParams.WindowSize.Width == 0 || device->CreationParams.WindowSize.Height == 0)
            {
                device->CreationParams.WindowSize.Width = ANativeWindow_getWidth(app->window);
                device->CreationParams.WindowSize.Height = ANativeWindow_getHeight(app->window);
 
char txt[1000];
sprintf(txt, "##> %d %d\n",device->CreationParams.WindowSize.Width , device->CreationParams.WindowSize.Height );
os::Printer::log(txt, ELL_DEBUG);
            }
 

It shows

I/Irrlicht( 2033): Android command APP_CMD_INIT_WINDOW
I/Irrlicht( 2033): ##> 1 1
I/Irrlicht( 2033):
I/Irrlicht( 2033): EGL version: 1.400000
I/Irrlicht( 2033): Using renderer: OpenGL ES 2.0 1566933
I/Irrlicht( 2033): Qualcomm

[CuteAlien]

-1 would make more sense - that would be the error code. But maybe a device can create a window with 1,1 and resize them later to the real size? You could try if a patch like the following would work:

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Index: CIrrDeviceAndroid.cpp
===================================================================
--- CIrrDeviceAndroid.cpp       (revision 4694)
+++ CIrrDeviceAndroid.cpp       (working copy)
@@ -211,6 +211,8 @@
                        {
                                device->CreationParams.WindowSize.Width = ANativeWindow_getWidth(app->window);
                                device->CreationParams.WindowSize.Height = ANativeWindow_getHeight(app->window);
+                               if ( device->CreationParams.WindowSize.Width == 1 && device->CreationParams.WindowSize.Height == 1 )
+                                       break;
                        }
 
                        device->getContextManager()->initialize(device->CreationParams, device->ExposedVideoData);
@@ -232,6 +234,29 @@
                        }
                        device->Initialized = true;
                break;
+               case APP_CMD_WINDOW_RESIZED:
+                       if (!device->Initialized)
+                       {
+                               device->CreationParams.WindowSize.Width = ANativeWindow_getWidth(app->window);
+                               device->CreationParams.WindowSize.Height = ANativeWindow_getHeight(app->window);
+                               device->getContextManager()->initialize(device->CreationParams, device->ExposedVideoData);
+                               device->getContextManager()->generateSurface();
+                               device->getContextManager()->generateContext();
+                               device->getContextManager()->activateContext(device->getContextManager()->getContext());
+
+                               io::CAndroidAssetFileArchive* assets = new io::CAndroidAssetFileArchive( device->Android->activity->assetManager, false, false);
+                               assets->addDirectoryToFileList("");
+                               device->FileSystem->addFileArchive(assets);
+                               assets->drop();
+
+                               device->createDriver();
+                                                                                                                                 
+                               if (device->VideoDriver)                                                                          
+                                       device->createGUIAndScene();                                                              
+                                                                                                                                 
+                               device->Initialized = true;                                                                       
+                       }                                                                                                         
+               break;                                                                                                            
                case APP_CMD_TERM_WINDOW:                                                                                         
                        os::Printer::log("Android command APP_CMD_TERM_WINDOW", ELL_DEBUG);                                       
                        device->getContextManager()->destroySurface();                                
 

[BinMa]

Hi, I'm now porting a game using this ogl-es version on Android. It works nice till now(at least I can see the main menu LOL). I have a question about the IME part. Will IME support be a part of later plan?

[CuteAlien]

I suppose I will need that input stuff it in some way as well in my project. But haven't worked on it yet.

[BinMa]

I'm now trying to transfer the touch event to fake gui events. Realizing there so much work to do to do the transfer one by one. Is there any easier way?

[mikkis]

You could try if a patch like the following would work:

Tried but there comes no resize.

I/Irrlicht( 2370): Irrlicht Engine version 1.9.0
I/Irrlicht( 2370): Waiting for Android activity window to be created.
I/Irrlicht( 2370): Android command APP_CMD_RESUME
I/Irrlicht( 2370): Android command APP_CMD_INIT_WINDOW
I/Irrlicht( 2370): Android command APP_CMD_GAINED_FOCUS

It just stops (with black screen).

[CuteAlien]

@BinMa: I've not done that yet, but my plan was try IGUIEnvironment::postEventFromUser and send mouse-click-events for the touch-events.

@mikkis: Thanks for trying. If I understand that right you get the correct values for ANativeWindow_getWidth/ANativeWindow_getHeight later on even in the black screen case? It just doesn't work in APP_CMD_INIT_WINDOW? I googled around a little and right now there's 3 more ideas which could affect this. First would be that the window-size is set in APP_CMD_CONFIG_CHANGED. Second would be that window might need to be locked before callling ANativeWindow_getWidth. And third would be - that it maybe still takes some time for some reason - so instead of checking the size in APP_CMD_INIT_WINDOW we would have to start some timer and check after xxx time has passed again.

Sorry - I'm not really an expert yet with all that and unfortunately got no HTC One to test myself.

[mikkis]

If I understand that right you get the correct values for ANativeWindow_getWidth/ANativeWindow_getHeight later on even in the black screen case?

Well they were still 1,1 because it didnt go to RESIZE and setted them.

But I got this to work, dont know is this right way but it works on my phone.
So, if I get 1,1, then I create surface, get width and height, then destroy it, and create it again using right width and height.

Index: CIrrDeviceAndroid.cpp
===================================================================
--- CIrrDeviceAndroid.cpp (revision 4695)
+++ CIrrDeviceAndroid.cpp (working copy)
@@ -211,6 +211,16 @@
{
device->CreationParams.WindowSize.Width = ANativeWindow_getWidth(app->window);
device->CreationParams.WindowSize.Height = ANativeWindow_getHeight(app->window);
+ if ( device->CreationParams.WindowSize.Width == 1 && device->CreationParams.WindowSize.Height == 1 )
+ {
+ device->getContextManager()->initialize(device->CreationParams, device->ExposedVideoData);
+ device->getContextManager()->generateSurface();
+ device->getContextManager()->generateContext();
+ device->getContextManager()->activateContext(device->getContextManager()->getContext());
+ device->CreationParams.WindowSize.Width = ANativeWindow_getWidth(app->window);
+ device->CreationParams.WindowSize.Height = ANativeWindow_getHeight(app->window);
+ device->getContextManager()->destroySurface();
+ }
}

device->getContextManager()->initialize(device->CreationParams, device->ExposedVideoData);

[CuteAlien]

Hm, I'm not familiar enough yet with the context manager to know what's going on there. Maybe Nadro has an idea why that would work. One guess would be - this stuff takes some time - so doing a sleep( ... some amount of time... ) or just a big loop might also work.

[mikkis]

I tried sleep earlier

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{
if (device->CreationParams.WindowSize.Width == 0 || device->CreationParams.WindowSize.Height == 0)
{
   device->sleep(1000, false); // sleeps one second
   device->CreationParams.WindowSize.Width = ANativeWindow_getWidth(app->window);
   device->CreationParams.WindowSize.Height = ANativeWindow_getHeight(app->window);
 
 

width and height was still 1,1.