[osg-users] [build] OpenSceneGraph static linking for Android

[Kamil Zaripov]

Hi,

I'm trying to compile static OpenSceneGraph for Android. However, when I'm trying to open simple .osg model, osg says that it can't load osgPlugins-3.4.0/osgdb_osg.so.

Host OS: macOS 10.12.6

CMake version 3.9.0

OpenSceneGraph version 3.4.0

Android NDK version r14b

CMake configuration:


Code:

cmake ../OpenSceneGraph \
-DCMAKE_BUILD_TYPE="Release" \
-DCMAKE_INSTALL_PREFIX=../OpenSceneGraph-android-static \
-DCMAKE_SYSTEM_NAME="Android" \
-DCMAKE_SYSTEM_VERSION=17 \
-DCMAKE_ANDROID_ARCH_ABI=armeabi-v7a \
-DCMAKE_ANDROID_NDK=/Users/kamil/Library/Android/sdk/ndk-bundle \
-DOPENGL_PROFILE="GLES2" \
-DDYNAMIC_OPENTHREADS=OFF \
-DDYNAMIC_OPENSCENEGRAPH=OFF




I'm linking OpenSceneGraph libraries to my project qmake file as follows:

my-project.pro:

Code:

...
LIBS += $${OPENSCENEGRAPHPATH}/lib/osgPlugins-3.4.0/libosgdb_osg.a \
$${OPENSCENEGRAPHPATH}/lib/libosgViewer.a \
$${OPENSCENEGRAPHPATH}/lib/libosgDB.a \
$${OPENSCENEGRAPHPATH}/lib/libosgGA.a \
$${OPENSCENEGRAPHPATH}/lib/libosgText.a \
$${OPENSCENEGRAPHPATH}/lib/libosgUtil.a \
$${OPENSCENEGRAPHPATH}/lib/libosgShadow.a \
$${OPENSCENEGRAPHPATH}/lib/libosgTerrain.a \
$${OPENSCENEGRAPHPATH}/lib/libosgSim.a \
$${OPENSCENEGRAPHPATH}/lib/libosg.a \
$${OPENSCENEGRAPHPATH}/lib/libOpenThreads.a

INCLUDEPATH += $${OPENSCENEGRAPHPATH}/include

LIBS += $${OPENSCENEGRAPHPATH}/obj/local/armeabi-v7a/libcurl.a \
$${OPENSCENEGRAPHPATH}/obj/local/armeabi-v7a/libgdal.a \
$${OPENSCENEGRAPHPATH}/obj/local/armeabi-v7a/libft2.a \
$${OPENSCENEGRAPHPATH}/obj/local/armeabi-v7a/libgif.a \
$${OPENSCENEGRAPHPATH}/obj/local/armeabi-v7a/libjpeg.a \
$${OPENSCENEGRAPHPATH}/obj/local/armeabi-v7a/libpng.a \
$${OPENSCENEGRAPHPATH}/obj/local/armeabi-v7a/libtiff.a
...




In my main.cpp I've used USE_OSGPLUGIN macro to link osg plugin:

main.cpp:


Code:

#include <osgDB/Registry>
...
USE_OSGPLUGIN(osg)
...
int main() {
...
}




However, when I'm trying to open some osg file:

Code:

osg::Node * node = osgDB::readNodeFile(":/resources/cessna.osg");




osgDB::readNodeFile returns NULL and prints in output:

Code:

Warning: dynamic library 'osgPlugins-3.4.0/osgdb_osg.so' does not exist (or isn't readable):
dlopen failed: library "osgPlugins-3.4.0/osgdb_osg.so" not found
DynamicLibrary::failed loading "osgPlugins-3.4.0/osgdb_osg.so"




What should I do to correctly link OpenSceneGraph library for Android?
Thank you!

Cheers,
Kamil

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Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=71406#71406