Re: [osg-users] osgAndroid - Deploying and Debugging

[Christian Kehl]

Hi Akhtar,


> However, now when i try to load a model (cessna.osg) it shows error: dlopen 
> failed: library osgPlugins-3.4.0/osgdb_osg.so" not found. 
> DynamicLibrary::failed loading "osgPlugins-3.4.0/osgdb_osg.so"


The compile instructions state to compile it all in static mode - also the 
plugins. Can you please have a look if the files in your osgPlugins-3.4.0" 
folder are static libraries (extension ".a") ? That might be the problem when 
trying to load ".osg" files.

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http://forum.openscenegraph.org/viewtopic.php?p=68626#68626





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Re: [osg-users] osgAndroid - Deploying and Debugging

[Akhtar Shamim]

Hi Rafa

I am sorry that I couldnt reply to this email earlier.
I was away and couldnt check my emails for a couple of weeks.

Yes, I could do that. I will reply to your email next week after going
through the changes again.

I started working on the Android example. I have made a few changes to the
working sample osgAndroidExampleGLES1 for my convenience. I have made the
sample to be in fullscreen and added some overlay nodes for user interfaces.

Strangely i found another issue. For all PUSH events when i get -1 for
getXmin as well as getYmin where as +1 for getXmax and getYmax. However
getX returns a value which which is correct coordinate. Hence all the
getXnormalized and getYnormalized values returned are wrong.

This is what i did:

Create a simple event handler and added this to using
osgViewer::Viewer::addEventHandler method.

class LayerManagerEventHandler : public osgGA::GUIEventHandler
{
public:
LayerManagerEventHandler(LayerManager& layer) :
osgGA::GUIEventHandler(), _layerManager(layer) {}
virtual ~LayerManagerEventHandler() {}

bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter&
aa)
{
// *** here ea.getXmin, ea.getYmin, getXmax and getYmax return
-1,-1,1,1 respectively.
// however getX return 897 and getY return 324 which is correct.
}

LayerManager& _layerManager;
};

//

This causes all the manipulators to fail. Did anyone observe this behavior?
Am i doing something wrong?

regards
Shamim

On Thu, Oct 1, 2015 at 2:48 PM, Rafa Gaitan  wrote:

> Hi Shamim,
>
> I'm glad you made it work, but I'm concerned about the osgsimple sample in
> osgAndroid not working for you. Could you tell me if the logcat says
> something?, maybe the model you tried to load is not in the expected path?
>
> If you have any improvements to the OSG sample you can send a submission
> using the osg-submissions list. If you have any modification to osgAndroid,
> just send a pull request in github and I'll review the changes and merge
> them.
>
> Regards,
> Rafa
>
> El mié., 30 sept. 2015 a las 12:24, Akhtar Shamim ()
> escribió:
>
>> Hi
>>
>> Just an update.
>>
>> I managed to make osgAndroidExampleGLES1 work based on the Android.mk
>> settings for osgSimple and am able to load cessna.osg or any other osg
>> models. However, i am still not able to make osgSimple work based on the
>> predefined setting.
>>
>> If anyone is interested then I can provide a complete step by step guide
>> for making osgAndroid compile and run the osgAndroidExampleGLES1 example on
>> an Android device (with development environment on both Windows 10 and
>> Ubuntu 14.0.4)
>>
>> regards
>> Shamim
>>
>> On Tue, Sep 29, 2015 at 3:12 PM, Akhtar Shamim  wrote:
>>
>>> Hi Rafa
>>>
>>> Thank you for the pointer. I managed to compile and run the application
>>> in an Android device successfully.
>>> I have also managed to compile and run the osgAndroidExampleGLES1 on my
>>> mobile device. I can see the blue background for the example together with
>>> three buttons.
>>>
>>> However, now when i try to load a model (cessna.osg) it shows error:
>>> dlopen failed: library osgPlugins-3.4.0/osgdb_osg.so" not found.
>>> DynamicLibrary::failed loading "osgPlugins-3.4.0/osgdb_osg.so". It is
>>> strange because the build is static build yet it is looking for .so file.
>>>
>>> I am not too sure why this is happening. Any pointer will be very
>>> helpful.
>>>
>>> regards
>>> Shamim
>>>
>>>
>>> On Mon, Sep 28, 2015 at 5:08 PM, Rafa Gaitan 
>>> wrote:
>>>
 Hi Shamim,

 I added glustl_shared to be loaded dynamically before loading any
 osgAndroid jni library, because linking it statically was giving a lot of
 problems.

 I don't recall having problems before, but I usually work on linux or
 mac when I have to develop in android and OSG. Maybe is something related
 to the r10e NDK?.

 Anyway, could you check if you have in your
 org.openscenegraph.android/libs/armeabi/ the library libgnustd_shared.so?,
 if not, probably you need to copy it there from the NDK.

 I don't recall if I copied it by myself that or it's automated somehow
 by the NDK build system. But if you have it there along the
 libjni-osggles*.so libraries it will be deployed within the apk.

 Regards,
 Rafa.


 El lun., 28 sept. 2015 a las 9:34, Akhtar Shamim ()
 escribió:

> Hi
>
> Recently we had a requirement to build OSG for Android and load a
> OpenFlight MetaFight file. This is what I did:
>
> - Checkout the 3.4.0 stable release of OSG
> - Installed Android NDK, SDK and Eclipse.
> - Used the toolchain to compile OSG for GLES1
> - Downloaded OSGAndroid from GitHub
> - Imported to Eclipse
> - Build all the four projects
>
> So far there is no problem at all. Everything went smooth.
>
> 

Re: [osg-users] osgAndroid - Deploying and Debugging

[Rafa Gaitan]

Hi Shamim,

I'm glad you made it work, but I'm concerned about the osgsimple sample in
osgAndroid not working for you. Could you tell me if the logcat says
something?, maybe the model you tried to load is not in the expected path?

If you have any improvements to the OSG sample you can send a submission
using the osg-submissions list. If you have any modification to osgAndroid,
just send a pull request in github and I'll review the changes and merge
them.

Regards,
Rafa

El mié., 30 sept. 2015 a las 12:24, Akhtar Shamim ()
escribió:

> Hi
>
> Just an update.
>
> I managed to make osgAndroidExampleGLES1 work based on the Android.mk
> settings for osgSimple and am able to load cessna.osg or any other osg
> models. However, i am still not able to make osgSimple work based on the
> predefined setting.
>
> If anyone is interested then I can provide a complete step by step guide
> for making osgAndroid compile and run the osgAndroidExampleGLES1 example on
> an Android device (with development environment on both Windows 10 and
> Ubuntu 14.0.4)
>
> regards
> Shamim
>
> On Tue, Sep 29, 2015 at 3:12 PM, Akhtar Shamim  wrote:
>
>> Hi Rafa
>>
>> Thank you for the pointer. I managed to compile and run the application
>> in an Android device successfully.
>> I have also managed to compile and run the osgAndroidExampleGLES1 on my
>> mobile device. I can see the blue background for the example together with
>> three buttons.
>>
>> However, now when i try to load a model (cessna.osg) it shows error:
>> dlopen failed: library osgPlugins-3.4.0/osgdb_osg.so" not found.
>> DynamicLibrary::failed loading "osgPlugins-3.4.0/osgdb_osg.so". It is
>> strange because the build is static build yet it is looking for .so file.
>>
>> I am not too sure why this is happening. Any pointer will be very helpful.
>>
>> regards
>> Shamim
>>
>>
>> On Mon, Sep 28, 2015 at 5:08 PM, Rafa Gaitan 
>> wrote:
>>
>>> Hi Shamim,
>>>
>>> I added glustl_shared to be loaded dynamically before loading any
>>> osgAndroid jni library, because linking it statically was giving a lot of
>>> problems.
>>>
>>> I don't recall having problems before, but I usually work on linux or
>>> mac when I have to develop in android and OSG. Maybe is something related
>>> to the r10e NDK?.
>>>
>>> Anyway, could you check if you have in your
>>> org.openscenegraph.android/libs/armeabi/ the library libgnustd_shared.so?,
>>> if not, probably you need to copy it there from the NDK.
>>>
>>> I don't recall if I copied it by myself that or it's automated somehow
>>> by the NDK build system. But if you have it there along the
>>> libjni-osggles*.so libraries it will be deployed within the apk.
>>>
>>> Regards,
>>> Rafa.
>>>
>>>
>>> El lun., 28 sept. 2015 a las 9:34, Akhtar Shamim ()
>>> escribió:
>>>
 Hi

 Recently we had a requirement to build OSG for Android and load a
 OpenFlight MetaFight file. This is what I did:

 - Checkout the 3.4.0 stable release of OSG
 - Installed Android NDK, SDK and Eclipse.
 - Used the toolchain to compile OSG for GLES1
 - Downloaded OSGAndroid from GitHub
 - Imported to Eclipse
 - Build all the four projects

 So far there is no problem at all. Everything went smooth.

 However, when I am trying to deploy the osgsimple application using
 eclipse or trying to debug the application it throws an error saying:

 "Couldn't load gnustl_shared from loader dalvik.system.PathClassLoader".

 This is what I did:
 - Modified Android.mk to have the correct OSG_SDK path
 - Modified Android.mk to have the correct plugins (osgPlugins-3.4.0)

 Note:

 (a) No other changes made to any files downloaded from GitHub for
 osgAndroid.
 (b) The command used to configure cmake is <<<

 > set ANDROID_NDK=C:\Android\android-ndk-r10e
 > "c:\Program Files (x86)\CMake 2.8\bin\cmake.exe" .. -G"MinGW
 Makefiles" -DANDROID_NDK=C:/Android/android-ndk-r10e
 -DCMAKE_TOOLCHAIN_FILE=../PlatformSpecifics/Android/android.toolchain.cmake
 -DCMAKE_MAKE_PROGRAM="%ANDROID_NDK%\prebuilt\windows-x86_64\bin\make.exe"
 -DOPENGL_PROFILE="GLES1" -DDYNAMIC_OPENTHREADS=OFF
 -DDYNAMIC_OPENSCENEGRAPH=OFF -DANDROID_NATIVE_API_LEVEL=15
 -DANDROID_ABI=armeabi -DCMAKE_INSTALL_PREFIX=C:/Android/OSG_ES1-3.4.0

 > make  -j 8
 > make install

 

 I tried the above in Windows 10.

 Any help to get this resolved will be greatly appreciated.

 regards
 Shamim







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>>>
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Re: [osg-users] osgAndroid - Deploying and Debugging

[Akhtar Shamim]

Hi

Just an update.

I managed to make osgAndroidExampleGLES1 work based on the Android.mk
settings for osgSimple and am able to load cessna.osg or any other osg
models. However, i am still not able to make osgSimple work based on the
predefined setting.

If anyone is interested then I can provide a complete step by step guide
for making osgAndroid compile and run the osgAndroidExampleGLES1 example on
an Android device (with development environment on both Windows 10 and
Ubuntu 14.0.4)

regards
Shamim

On Tue, Sep 29, 2015 at 3:12 PM, Akhtar Shamim  wrote:

> Hi Rafa
>
> Thank you for the pointer. I managed to compile and run the application in
> an Android device successfully.
> I have also managed to compile and run the osgAndroidExampleGLES1 on my
> mobile device. I can see the blue background for the example together with
> three buttons.
>
> However, now when i try to load a model (cessna.osg) it shows error:
> dlopen failed: library osgPlugins-3.4.0/osgdb_osg.so" not found.
> DynamicLibrary::failed loading "osgPlugins-3.4.0/osgdb_osg.so". It is
> strange because the build is static build yet it is looking for .so file.
>
> I am not too sure why this is happening. Any pointer will be very helpful.
>
> regards
> Shamim
>
>
> On Mon, Sep 28, 2015 at 5:08 PM, Rafa Gaitan 
> wrote:
>
>> Hi Shamim,
>>
>> I added glustl_shared to be loaded dynamically before loading any
>> osgAndroid jni library, because linking it statically was giving a lot of
>> problems.
>>
>> I don't recall having problems before, but I usually work on linux or mac
>> when I have to develop in android and OSG. Maybe is something related to
>> the r10e NDK?.
>>
>> Anyway, could you check if you have in your
>> org.openscenegraph.android/libs/armeabi/ the library libgnustd_shared.so?,
>> if not, probably you need to copy it there from the NDK.
>>
>> I don't recall if I copied it by myself that or it's automated somehow by
>> the NDK build system. But if you have it there along the libjni-osggles*.so
>> libraries it will be deployed within the apk.
>>
>> Regards,
>> Rafa.
>>
>>
>> El lun., 28 sept. 2015 a las 9:34, Akhtar Shamim ()
>> escribió:
>>
>>> Hi
>>>
>>> Recently we had a requirement to build OSG for Android and load a
>>> OpenFlight MetaFight file. This is what I did:
>>>
>>> - Checkout the 3.4.0 stable release of OSG
>>> - Installed Android NDK, SDK and Eclipse.
>>> - Used the toolchain to compile OSG for GLES1
>>> - Downloaded OSGAndroid from GitHub
>>> - Imported to Eclipse
>>> - Build all the four projects
>>>
>>> So far there is no problem at all. Everything went smooth.
>>>
>>> However, when I am trying to deploy the osgsimple application using
>>> eclipse or trying to debug the application it throws an error saying:
>>>
>>> "Couldn't load gnustl_shared from loader dalvik.system.PathClassLoader".
>>>
>>> This is what I did:
>>> - Modified Android.mk to have the correct OSG_SDK path
>>> - Modified Android.mk to have the correct plugins (osgPlugins-3.4.0)
>>>
>>> Note:
>>>
>>> (a) No other changes made to any files downloaded from GitHub for
>>> osgAndroid.
>>> (b) The command used to configure cmake is <<<
>>>
>>> > set ANDROID_NDK=C:\Android\android-ndk-r10e
>>> > "c:\Program Files (x86)\CMake 2.8\bin\cmake.exe" .. -G"MinGW
>>> Makefiles" -DANDROID_NDK=C:/Android/android-ndk-r10e
>>> -DCMAKE_TOOLCHAIN_FILE=../PlatformSpecifics/Android/android.toolchain.cmake
>>> -DCMAKE_MAKE_PROGRAM="%ANDROID_NDK%\prebuilt\windows-x86_64\bin\make.exe"
>>> -DOPENGL_PROFILE="GLES1" -DDYNAMIC_OPENTHREADS=OFF
>>> -DDYNAMIC_OPENSCENEGRAPH=OFF -DANDROID_NATIVE_API_LEVEL=15
>>> -DANDROID_ABI=armeabi -DCMAKE_INSTALL_PREFIX=C:/Android/OSG_ES1-3.4.0
>>>
>>> > make  -j 8
>>> > make install
>>>
>>> 
>>>
>>> I tried the above in Windows 10.
>>>
>>> Any help to get this resolved will be greatly appreciated.
>>>
>>> regards
>>> Shamim
>>>
>>>
>>>
>>>
>>>
>>>
>>>
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>>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>>>
>>
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Re: [osg-users] osgAndroid - Deploying and Debugging

[Akhtar Shamim]

Hi Rafa

Thank you for the pointer. I managed to compile and run the application in
an Android device successfully.
I have also managed to compile and run the osgAndroidExampleGLES1 on my
mobile device. I can see the blue background for the example together with
three buttons.

However, now when i try to load a model (cessna.osg) it shows error: dlopen
failed: library osgPlugins-3.4.0/osgdb_osg.so" not found.
DynamicLibrary::failed loading "osgPlugins-3.4.0/osgdb_osg.so". It is
strange because the build is static build yet it is looking for .so file.

I am not too sure why this is happening. Any pointer will be very helpful.

regards
Shamim


On Mon, Sep 28, 2015 at 5:08 PM, Rafa Gaitan  wrote:

> Hi Shamim,
>
> I added glustl_shared to be loaded dynamically before loading any
> osgAndroid jni library, because linking it statically was giving a lot of
> problems.
>
> I don't recall having problems before, but I usually work on linux or mac
> when I have to develop in android and OSG. Maybe is something related to
> the r10e NDK?.
>
> Anyway, could you check if you have in your
> org.openscenegraph.android/libs/armeabi/ the library libgnustd_shared.so?,
> if not, probably you need to copy it there from the NDK.
>
> I don't recall if I copied it by myself that or it's automated somehow by
> the NDK build system. But if you have it there along the libjni-osggles*.so
> libraries it will be deployed within the apk.
>
> Regards,
> Rafa.
>
>
> El lun., 28 sept. 2015 a las 9:34, Akhtar Shamim ()
> escribió:
>
>> Hi
>>
>> Recently we had a requirement to build OSG for Android and load a
>> OpenFlight MetaFight file. This is what I did:
>>
>> - Checkout the 3.4.0 stable release of OSG
>> - Installed Android NDK, SDK and Eclipse.
>> - Used the toolchain to compile OSG for GLES1
>> - Downloaded OSGAndroid from GitHub
>> - Imported to Eclipse
>> - Build all the four projects
>>
>> So far there is no problem at all. Everything went smooth.
>>
>> However, when I am trying to deploy the osgsimple application using
>> eclipse or trying to debug the application it throws an error saying:
>>
>> "Couldn't load gnustl_shared from loader dalvik.system.PathClassLoader".
>>
>> This is what I did:
>> - Modified Android.mk to have the correct OSG_SDK path
>> - Modified Android.mk to have the correct plugins (osgPlugins-3.4.0)
>>
>> Note:
>>
>> (a) No other changes made to any files downloaded from GitHub for
>> osgAndroid.
>> (b) The command used to configure cmake is <<<
>>
>> > set ANDROID_NDK=C:\Android\android-ndk-r10e
>> > "c:\Program Files (x86)\CMake 2.8\bin\cmake.exe" .. -G"MinGW Makefiles"
>> -DANDROID_NDK=C:/Android/android-ndk-r10e
>> -DCMAKE_TOOLCHAIN_FILE=../PlatformSpecifics/Android/android.toolchain.cmake
>> -DCMAKE_MAKE_PROGRAM="%ANDROID_NDK%\prebuilt\windows-x86_64\bin\make.exe"
>> -DOPENGL_PROFILE="GLES1" -DDYNAMIC_OPENTHREADS=OFF
>> -DDYNAMIC_OPENSCENEGRAPH=OFF -DANDROID_NATIVE_API_LEVEL=15
>> -DANDROID_ABI=armeabi -DCMAKE_INSTALL_PREFIX=C:/Android/OSG_ES1-3.4.0
>>
>> > make  -j 8
>> > make install
>>
>> 
>>
>> I tried the above in Windows 10.
>>
>> Any help to get this resolved will be greatly appreciated.
>>
>> regards
>> Shamim
>>
>>
>>
>>
>>
>>
>>
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>>
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Re: [osg-users] osgAndroid - Deploying and Debugging

[Rafa Gaitan]

Hi Shamim,

I added glustl_shared to be loaded dynamically before loading any
osgAndroid jni library, because linking it statically was giving a lot of
problems.

I don't recall having problems before, but I usually work on linux or mac
when I have to develop in android and OSG. Maybe is something related to
the r10e NDK?.

Anyway, could you check if you have in your
org.openscenegraph.android/libs/armeabi/ the library libgnustd_shared.so?,
if not, probably you need to copy it there from the NDK.

I don't recall if I copied it by myself that or it's automated somehow by
the NDK build system. But if you have it there along the libjni-osggles*.so
libraries it will be deployed within the apk.

Regards,
Rafa.


El lun., 28 sept. 2015 a las 9:34, Akhtar Shamim ()
escribió:

> Hi
>
> Recently we had a requirement to build OSG for Android and load a
> OpenFlight MetaFight file. This is what I did:
>
> - Checkout the 3.4.0 stable release of OSG
> - Installed Android NDK, SDK and Eclipse.
> - Used the toolchain to compile OSG for GLES1
> - Downloaded OSGAndroid from GitHub
> - Imported to Eclipse
> - Build all the four projects
>
> So far there is no problem at all. Everything went smooth.
>
> However, when I am trying to deploy the osgsimple application using
> eclipse or trying to debug the application it throws an error saying:
>
> "Couldn't load gnustl_shared from loader dalvik.system.PathClassLoader".
>
> This is what I did:
> - Modified Android.mk to have the correct OSG_SDK path
> - Modified Android.mk to have the correct plugins (osgPlugins-3.4.0)
>
> Note:
>
> (a) No other changes made to any files downloaded from GitHub for
> osgAndroid.
> (b) The command used to configure cmake is <<<
>
> > set ANDROID_NDK=C:\Android\android-ndk-r10e
> > "c:\Program Files (x86)\CMake 2.8\bin\cmake.exe" .. -G"MinGW Makefiles"
> -DANDROID_NDK=C:/Android/android-ndk-r10e
> -DCMAKE_TOOLCHAIN_FILE=../PlatformSpecifics/Android/android.toolchain.cmake
> -DCMAKE_MAKE_PROGRAM="%ANDROID_NDK%\prebuilt\windows-x86_64\bin\make.exe"
> -DOPENGL_PROFILE="GLES1" -DDYNAMIC_OPENTHREADS=OFF
> -DDYNAMIC_OPENSCENEGRAPH=OFF -DANDROID_NATIVE_API_LEVEL=15
> -DANDROID_ABI=armeabi -DCMAKE_INSTALL_PREFIX=C:/Android/OSG_ES1-3.4.0
>
> > make  -j 8
> > make install
>
> 
>
> I tried the above in Windows 10.
>
> Any help to get this resolved will be greatly appreciated.
>
> regards
> Shamim
>
>
>
>
>
>
>
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>
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