Volumes with large dimensions fail to be visualized

[nsouedet]

A large (16385x16385) empty volume created using the following command:
AimsVolumeExtract -o /tmp/test_U32_16385x16385.ima -t U32 -od 16385 16385
fails to be visualized with anatomist.

A segmentation fault is raised with the following back trace:

Thread 1 "anatomist" received signal SIGSEGV, Segmentation fault.
anatomist::AVolume<unsigned int>::updateAxial (this=this@entry=0xbce860, ximage=ximage@entry=0x375c218, pf0=..., td=std::vector of length 1, capacity 1 = {...})
    at /volatile/ns215310/development/svn/brainvisa_bioproj/brainvisa/anatomist/anatomist-free/integration/src/lib/volume/Volume.cc:776
776	      *ptrpix++ = coltraits.color( *( ptrori + dxx * y + x ) );

#0  anatomist::AVolume<unsigned int>::updateAxial (this=this@entry=0xbce860, ximage=ximage@entry=0x375c218, pf0=..., td=std::vector of length 1, capacity 1 = {...})
    at /volatile/ns215310/development/svn/brainvisa_bioproj/brainvisa/anatomist/anatomist-free/integration/src/lib/volume/Volume.cc:776
#1  0x00007ffff712bcd3 in anatomist::AVolume<unsigned int>::update2DTexture (this=0xbce860, ximage=..., pos=..., state=...)
    at /volatile/ns215310/development/svn/brainvisa_bioproj/brainvisa/anatomist/anatomist-free/integration/src/lib/volume/Volume.cc:395
#2  0x00007ffff6f580bf in anatomist::Sliceable::glMakeTexImage (this=0xbce9d8, state=..., gltex=..., tex=0)
    at /volatile/ns215310/development/svn/brainvisa_bioproj/brainvisa/anatomist/anatomist-free/integration/src/lib/object/sliceable.cc:427
#3  0x00007ffff6ded4e7 in anatomist::GLComponent::glTexNameGLL (this=0xbce9d8, state=..., tex=0)
    at /volatile/ns215310/development/svn/brainvisa_bioproj/brainvisa/anatomist/anatomist-free/integration/src/lib/surface/glcomponent.cc:851
#4  0x00007ffff6debf45 in anatomist::GLComponent::glMainGLL (this=<optimized out>, state=...)
    at /volatile/ns215310/development/svn/brainvisa_bioproj/brainvisa/anatomist/anatomist-free/integration/src/lib/surface/glcomponent.cc:482
#5  0x00007ffff6f05530 in anatomist::AObject::render (this=0xbce860, prim=empty std::list, vs=...)
    at /volatile/ns215310/development/svn/brainvisa_bioproj/brainvisa/anatomist/anatomist-free/integration/src/lib/object/Object.cc:263
#6  0x00007ffff7070938 in AWindow3D::updateObject2D (this=this@entry=0x2c3ce20, obj=obj@entry=0xbce860, pl=pl@entry=0x7fffffffcab0, 
    selectmode=selectmode@entry=anatomist::ViewState::glSELECTRENDER_NONE)
    at /volatile/ns215310/development/svn/brainvisa_bioproj/brainvisa/anatomist/anatomist-free/integration/src/lib/window3D/window3D.cc:1025
#7  0x00007ffff7070ac0 in AWindow3D::updateObject (this=this@entry=0x2c3ce20, obj=0xbce860, pl=pl@entry=0x0, selectmode=selectmode@entry=anatomist::ViewState::glSELECTRENDER_NONE)
    at /volatile/ns215310/development/svn/brainvisa_bioproj/brainvisa/anatomist/anatomist-free/integration/src/lib/window3D/window3D.cc:1049
#8  0x00007ffff7076800 in AWindow3D::refreshNow (this=0x2c3ce20)
    at /volatile/ns215310/development/svn/brainvisa_bioproj/brainvisa/anatomist/anatomist-free/integration/src/lib/window3D/window3D.cc:1318
#9  0x00007ffff6fd86e5 in QAWindow::triggeredRefresh (this=0x2c3ce20)
    at /volatile/ns215310/development/svn/brainvisa_bioproj/brainvisa/anatomist/anatomist-free/integration/src/lib/window/qwindow.cc:347
#10 0x00007fffeb6b2010 in QMetaObject::activate (sender=0x2f01310, m=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3567
#11 0x00007fffeb6b7c83 in QObject::event (this=0x2f01310, e=<optimized out>) at kernel/qobject.cpp:1253
#12 0x00007ffff5cc4fdc in QApplicationPrivate::notify_helper (this=this@entry=0x6c4fd0, receiver=receiver@entry=0x2f01310, e=e@entry=0x7fffffffd140) at kernel/qapplication.cpp:4570
#13 0x00007ffff5ccbf16 in QApplication::notify (this=0x7fffffffd440, receiver=0x2f01310, e=0x7fffffffd140) at kernel/qapplication.cpp:4356
#14 0x00007fffeb69d90d in QCoreApplication::notifyInternal (this=0x7fffffffd440, receiver=0x2f01310, event=event@entry=0x7fffffffd140) at kernel/qcoreapplication.cpp:955
#15 0x00007fffeb6d0780 in QCoreApplication::sendEvent (event=0x7fffffffd140, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#16 QTimerInfoList::activateTimers (this=0x6c7ae0) at kernel/qeventdispatcher_unix.cpp:621
#17 0x00007fffeb6cd8f1 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:193
#18 0x00007fffeabd6197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fffeabd63f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fffeabd649c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fffeb6ce2ae in QEventDispatcherGlib::processEvents (this=0x6c6640, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#22 0x00007ffff5d72616 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#23 0x00007fffeb69c18f in QEventLoop::processEvents (this=this@entry=0x7fffffffd3c0, flags=...) at kernel/qeventloop.cpp:149
#24 0x00007fffeb69c4f5 in QEventLoop::exec (this=this@entry=0x7fffffffd3c0, flags=...) at kernel/qeventloop.cpp:204
#25 0x00007fffeb6a24b9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1227
#26 0x00007ffff5cc322c in QApplication::exec () at kernel/qapplication.cpp:3828
#27 0x0000000000401939 in main (argc=2, argv=<optimized out>)
    at /volatile/ns215310/development/svn/brainvisa_bioproj/brainvisa/anatomist/anatomist-free/integration/src/anatomist/anatomist.cc:76

Whereas a volume of 16385x16384 opens correctly.
The issue is not dependent on the data type (i.e. it also fails with a U16 volume of 16385x16385).