rviz_qt segfaults on startup on OS X (ros-pkg ticket #5289)

[hershwg]

When I run rviz_qt, after applying the workaround at #5144, on OS X I get (from gdb):

{{{
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000000
Ogre::RenderSystem::attachRenderTarget (this=0x108763568, target=@0x0) at /Users/william/ros/visualization_common/ogre/build/ogre_src_v1-7-3/OgreMain/src/OgreRenderSystem.cpp:242
242 assert( target.getPriority() < OGRE_NUM_RENDERTARGET_GROUPS );
(gdb) bt
#0 Ogre::RenderSystem::attachRenderTarget (this=0x108763568, target=@0x0) at /Users/william/ros/visualization_common/ogre/build/ogre_src_v1-7-3/OgreMain/src/OgreRenderSystem.cpp:242
#1 0x000000010d7225e5 in Ogre::GLRenderSystem::_createRenderWindow (this=0x108763568, name=@0x7fff5fbfdf00, width=1, height=1, fullScreen=false, miscParams=0x7fff5fbfde90) at /Users/william/ros/visualization_common/ogre/build/ogre_src_v1-7-3/RenderSystems/GL/src/OgreGLRenderSystem.cpp:1011
#2 0x00000001002058dc in Ogre::Root::createRenderWindow (this=0x108752dd8, name=<value temporarily unavailable, due to optimizations>, width=<value temporarily unavailable, due to optimizations>, height=<value temporarily unavailable, due to optimizations>, fullScreen=<value temporarily unavailable, due to optimizations>, miscParams=<value temporarily unavailable, due to optimizations>) at /Users/william/ros/visualization_common/ogre/build/ogre_src_v1-7-3/OgreMain/src/OgreRoot.cpp:1199
#3 0x0000000100d88370 in ogre_tools::RenderSystem::makeRenderWindow (this=0x7fff5fbfdf30, window_id=0, width=1606410032, height=1606410032) at render_system.cpp:200
#4 0x0000000100d894af in ogre_tools::RenderSystem::RenderSystem (this=0x106009200) at render_system.cpp:62
#5 0x0000000100d89594 in ogre_tools::RenderSystem::get () at render_system.cpp:49
#6 0x0000000101d4c958 in rviz::VisualizationFrame::initialize (this=0x106005b90, display_config_file=@0x7fff5fbfee90, fixed_frame=@0x7fff5fbfee80, target_frame=@0x7fff5fbfee88, splash_path=@0x7fff5fbfee78, verbose=false) at visualization_frame.cpp:188
#7 0x0000000101d6879d in rviz::VisualizerApp::init (this=0x7fff5fbff0a8, argc=2, argv=0x7fff5fbff148) at visualizer_app.cpp:189
#8 0x000000010000e18a in main (argc=2, argv=0x7fff5fbff148) at main.cpp:39

}}}

This is because it is trying to use the carbon interface, when it should be using the cocoa interface. This shouldn't be the case given this code starting at line 184 of render_system.cpp:

{{{
// Set the macAPI for Ogre based on the Qt implementation

ifdef QT_MAC_USE_COCOA

params["macAPI"] = "cocoa";
params["macAPICocoaUseNSView"] = "true";

else

params["macAPI"] = "carbon";

endif

}}}

This define is never true, which doesn't make sense given that QT_MAC_USE_COCOA is a compile time flag.

After further investigation it turns out that you need to include:

{{{

include <QtCore/qglobal.h>

}}}

For that define to be set properly.

Patch is for visualization_experimental 830568a7d2a9.

trac data:

• Owner: hersh
• Reporter: wjwwood
• Reported at: Mon Dec 12 19:27:36 2011
• URL: http://code.ros.org/trac/ros-pkg/ticket/5289

[hershwg]

[hersh] sweet, thanks for all this nice work!

Fixed in r187.