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OpenSceneGraph on the Playbook

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Preet Desai edited this page Jun 25, 2013 · 7 revisions

This page describes one possible OpenSceneGraph (version 3.1.8 as of this writing) build config for the Playbook (Tablet OS 2.0.1)

  • Get the source (from openscenegraph.com, github.com/openscenegraph, etc.) and extract/clone it to a directory
$ /home/user/osg-src

  • I remove most plugins because they tend to require a lot of small fixes to compile with the Playbook.

  • My osg-src/src/osgPlugins/CMakeLists.txt looks like this:

       #---------------------------------------------------
   # OSG CMAKE SUPPORT
   # (C) by Michael Wagner, mtw@shared-reality.com 2005
   # (C) Eric Wing, Luigi Calori and Robert Osfield 2006-2007
   #---------------------------------------------------

   PROJECT(OSG_PLUGINS_MASTER)

   IF(NOT DYNAMIC_OPENSCENEGRAPH)
       ADD_DEFINITIONS(-DOSG_LIBRARY_STATIC)
   ENDIF()

   IF(NOT MSVC)
       SET(LIBRARY_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH}/${OSG_PLUGINS}")
       SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${OSG_PLUGINS}")
   ENDIF()

   SET(CMAKE_SHARED_MODULE_PREFIX ${OSG_PLUGIN_PREFIX})

   IF(MSVC80 OR MSVC90)
       IF(NOT OSG_MSVC_GENERATE_PLUGINS_AND_WRAPPERS_MANIFESTS)
           SET(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} /MANIFEST:NO")
       ENDIF()
   ENDIF()

   SET(TARGET_DEFAULT_PREFIX "osgdb_")
   SET(TARGET_DEFAULT_LABEL_PREFIX "Plugins")
   SET(TARGET_COMMON_LIBRARIES
       OpenThreads
       osg
       osgDB
       osgUtil
   )

   ############################################################
   #
   #  NodeKit/Psudo loader plugins
   #
   ADD_SUBDIRECTORY(osga)
   ADD_SUBDIRECTORY(rot)
   ADD_SUBDIRECTORY(scale)
   ADD_SUBDIRECTORY(trans)
   ADD_SUBDIRECTORY(normals)
   ADD_SUBDIRECTORY(revisions)
   ADD_SUBDIRECTORY(view)
   ADD_SUBDIRECTORY(shadow)
   ADD_SUBDIRECTORY(terrain)

   ############################################################
   #
   #  Main native plugins
   #

   ADD_SUBDIRECTORY(osg)
   ADD_SUBDIRECTORY(ive)

   ############################################################
   #
   #  Shader plugins
   #

   ADD_SUBDIRECTORY(glsl)

   ############################################################
   #
   #  Image plugins
   #

   IF(JPEG_FOUND)
       ADD_SUBDIRECTORY(jpeg)
   ENDIF()

   IF(PNG_FOUND AND OSG_CPP_EXCEPTIONS_AVAILABLE)
       ADD_SUBDIRECTORY(png)
   ENDIF()


   ############################################################
   #
   #  3rd party 3d plugins
   #

   IF(ZLIB_FOUND)
       ADD_SUBDIRECTORY(gz)
   ENDIF()

   ADD_SUBDIRECTORY(tgz)

   IF(FREETYPE_FOUND)
       ADD_SUBDIRECTORY(freetype)
   ENDIF()

   IF(ZLIB_FOUND)
       ADD_SUBDIRECTORY(zip)
   ENDIF()



   ##########to get all the variables of Cmake
   #GET_CMAKE_PROPERTY(MYVARS VARIABLES)
   #FOREACH(myvar ${MYVARS})
   #    FILE(APPEND ${CMAKE_CURRENT_BINARY_DIR}/AllVariables.txt
   #        "${myvar} -->${${myvar}}<-\n"
   #    )
   #ENDFOREACH(myvar)

  • Open CMakeLists.txt in osg-src/OpenThreads and make the following modifications

  • (at line 12):

       IF((NOT ANDROID) AND (NOT QNX))
       INCLUDE(CheckAtomicOps)
   ENDIF()

  • (line 67):

       IF((NOT ANDROID) AND (NOT QNX))
   # Use our modified version of FindThreads.cmake which has Sproc hacks.
       FIND_PACKAGE(Threads)
   ENDIF()

  • (line 91, add):

       ELSEIF(QNX)
       SUBDIRS(pthreads)

  • Open up osg-src/CMakeLists.txt

  • (line 74) ... this is just for added convenience when deploying since sonames and lib versioning doesn't really work when creating packages/apps

       SET(OPENSCENEGRAPH_SONAMES FALSE)
   SET(OPENTHREADS_SONAMES FALSE)

  • (after line 512) ... we do this to cut down on the number packages CMake looks for:

       ELSEIF(QNX)
   # Common to all platforms except android:
       FIND_PACKAGE(FreeType)
       FIND_PACKAGE(ZLIB)

  • Now we need to make changes to the source.

  • Open osg-src/include/osg/Math. Replace the cmath and cfloat includes:

       #if defined(__QNXNTO__)   
      #include <math.h>
      #include <float.h>
   #else
      #include <cmath>
      #include <cfloat>
   #endif

  • Scroll down to where the isNaN function is defined and add

       #elif defined(__QNXNTO__)
       inline bool isNaN(float v) { return isnan(v); }
       inline bool isNaN(double v) { return isnan(v); }

  • Open up osg-src/src/osgUtil/tristripper/include/public_types.h

  • Add the standard c style headers for stdlib:

       #if defined(__QNXNTO__)
      #include <stdlib.h>
   #else
      #include <cstdlib>
   #endif

  • Open up osg-src/include/osg/Array

  • Comment out lines 474 and 511 (virtual void apply(const GLdouble&)), ie sometimes GLdouble is redefined as GLfloat when OpenGLES2 is used and this will generate an error when compiling applications if it isn't commented out here.

  • Open up osg-src/include/osg/State

  • edit the applyModeOnTexUnit function:

                  #ifndef OSG_GLES2_AVAILABLE
              // with opengl es 2, GL_TEXTURE_2D is always enabled
              // and setting it explicitly causes an error
                  if (enabled) glEnable(mode);
                  else glDisable(mode);
              #endif

  • Open up osg-src/include/osg/State

  • Edit the State::initializeExtensionProcs() function where max texture units are queried:

      #ifdef OSG_GLES2_AVAILABLE 
     _glMaxTextureCoords=1;
  #else
     glGetIntegerv(GL_MAX_TEXTURE_COORDS,&_glMaxTextureCoords);
  #endif
  • Add the BlackBerry NDK environment to your shell
$ source /home/user/bbndk/bbndk-env.sh
  • Create a build directory
$ mkdir /home/user/osg-build
  • Run CMake from the build directory
$ cmake-gui ../osg-src

  • Press Configure and choose "Specify toolchain file"

  • Use this as a toolchain file (rename it 'something'.cmake). Note that this a hack pretty much and not a good toolchain file, it just overloads the required options for a specific OpenSceneGraph build. You have to replace the relevant paths with your install location of the blackberry ndk.

       SET(CMAKE_SYSTEM_NAME QNX)
   SET(CMAKE_SYSTEM_VERSION 1)
   SET(CMAKE_SYSTEM_PROCESSOR ntoarm)
   SET(QNX 1)

   # Setup compilers. We use CACHE STRING FORCE on the flags to
   # ensure they are used by CMake when compiling initial tests
   SET(CMAKE_C_COMPILER /home/preet/Dev/env/sys/bbndk-2.1.0/host/linux/x86/usr/bin/qcc)
   SET(CMAKE_C_FLAGS "-Vgcc_ntoarmv7le -fstack-protector -fstack-protector-all -Wno-psabi -Wall -W -D_REENTRANT" CACHE STRING "Playbook QCC C Flags" FORCE)

   SET(CMAKE_CXX_COMPILER /home/preet/Dev/env/sys/bbndk-2.1.0/host/linux/x86/usr/bin/qcc)
   SET(CMAKE_CXX_FLAGS "-Vgcc_ntoarmv7le -lang-c++ -fstack-protector -fstack-protector-all -Wno-psabi -Wall -W -D_REENTRANT" CACHE STRING "Playbook QCC C++ Flags" FORCE)

   SET(CMAKE_FIND_ROOT_PATH /home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/armle-v7)
   SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
   SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
   SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

   SET(CMAKE_AR /home/preet/Dev/env/sys/bbndk-2.1.0/host/linux/x86/usr/bin/ntoarmv7-ar CACHE FILEPATH "" FORCE)
   SET(CMAKE_LINKER /home/preet/Dev/env/sys/bbndk-2.1.0/host/linux/x86/usr/bin/ntoarmv7-ld CACHE FILEPATH "" FORCE)
   SET(CMAKE_RANLIB /home/preet/Dev/env/sys/bbndk-2.1.0/host/linux/x86/usr/bin/ntoarmv7-ranlib CACHE FILIEPATH "" FORCE)
   SET(CMAKE_NM /home/preet/Dev/env/sys/bbndk-2.1.0/host/linux/x86/usr/bin/ntoarmv7-nm CACHE FILEPATH "" FORCE)
   SET(CMAKE_OBJCOPY /home/preet/Dev/env/sys/bbndk-2.1.0/host/linux/x86/usr/bin/ntoarmv7-objcopy CACHE FILEPATH "" FORCE)
   SET(CMAKE_OBJDUMP /home/preet/Dev/env/sys/bbndk-2.1.0/host/linux/x86/usr/bin/ntoarmv7-objdump CACHE FILEPATH "" FORCE)
   SET(CMAKE_STRIP /home/preet/Dev/env/sys/bbndk-2.1.0/host/linux/x86/usr/bin/ntoarmv7-strip CACHE FILEPATH "")
   SET(CMAKE_MAKE_PROGRAM /home/preet/Dev/env/sys/bbndk-2.1.0/host/linux/x86/usr/bin/make CACHE FILEPATH "" FORCE)

   SET(CMAKE_SHARED_LINKER_FLAGS "-Wl,-rpath-link,/home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/armle-v7/lib -Wl,-rpath-link,/home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/armle-v7/usr/lib -Wl,-O1" CACHE STRING "")
   SET(CMAKE_EXE_LINKER_FLAGS "-Wl,-rpath-link,/home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/armle-v7/lib -Wl,-rpath-link,/home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/armle-v7/usr/lib -Wl,-O1" CACHE STRING "") 
   SET(CMAKE_INSTALL_PREFIX "/home/preet/Dev/env/qnx/osg-arm-rel" CACHE STRING "")

   # for osg

   SET(BUILD_OSG_APPLICATIONS OFF CACHE BOOL "" FORCE)
   SET(OSG_WINDOWING_SYSTEM "None" CACHE STRING "" FORCE)
   SET(OSG_USE_QT OFF CACHE BOOL "" FORCE)

   #opengl
   SET(OPENGL_INCLUDE_DIR /home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/usr/include/GLES2 CACHE FILEPATH "" FORCE)
   SET(OPENGL_egl_LIBRARY /home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/armle-v7/usr/lib/libEGL.so CACHE FILEPATH "" FORCE)
   SET(OPENGL_gl_LIBRARY /home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/armle-v7/usr/lib/libGLESv2.so CACHE FILEPATH "" FORCE)

   SET(OSG_GL1_AVAILABLE OFF CACHE BOOL "" FORCE)
   SET(OSG_GL2_AVAILABLE OFF CACHE BOOL "" FORCE)
   SET(OSG_GL3_AVAILABLE OFF CACHE BOOL "" FORCE)
   SET(OSG_GLES1_AVAILABLE OFF CACHE BOOL "" FORCE)
   SET(OSG_GLES2_AVAILABLE ON CACHE BOOL "" FORCE)
   SET(OSG_GL_LIBRARY_STATIC OFF CACHE BOOL "" FORCE)
   SET(OSG_GL_DISPLAYLISTS_AVAILABLE OFF CACHE BOOL "" FORCE)
   SET(OSG_GL_MATRICES_AVAILABLE OFF CACHE BOOL "" FORCE)
   SET(OSG_GL_VERTEX_FUNCS_AVAILABLE OFF CACHE BOOL "" FORCE)
   SET(OSG_GL_VERTEX_ARRAY_FUNCS_AVAILABLE OFF CACHE BOOL "" FORCE)
   SET(OSG_GL_FIXED_FUNCTION_AVAILABLE OFF CACHE BOOL "" FORCE)

   # freetype
   SET(FREETYPE_INCLUDE_DIR_freetype2 /home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/usr/include/freetype2 CACHE FILEPATH "")
   SET(FREETYPE_INCLUDE_DIR_ft2build /home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/usr/include CACHE FILEPATH "")
   SET(FREETYPE_LIBRARY /home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/armle-v7/usr/lib/libfreetype.so CACHE FILEPATH "")

   # jpg
   SET(JPEG_INCLUDE_DIR /home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/usr/include CACHE FILEPATH "")
   SET(JPEG_LIBRARY /home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/armle-v7/lib/libjpeg.so CACHE FILEPATH "")

   # zlib
   SET(ZLIB_INCLUDE_DIR /home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/usr/include CACHE FILEPATH "")
   SET(ZLIB_LIBRARY /home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/armle-v7/usr/lib/libz.so CACHE FILEPATH "")

   # png
   SET(PNG_LIBRARY /home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/armle-v7/usr/lib/libpng.so CACHE FILEPATH "")
   SET(PNG_PNG_INCLUDE_DIR /home/preet/Dev/env/sys/bbndk-2.1.0/target/qnx6/usr/include CACHE FILEPATH "")

  • Press Finish

  • Press Configure twice

  • Press Generate

  • Check the Advanced checkbox (next to the Search text input)

  • Close the CMake-gui dialog

  • In the build directory, run (make sure the blackberry ndk environment is set)

$ make
$ make install
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