Processing 1.0 - Processing Discourse - OPENGL mode and 64-bit Linux

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Index › Programming Questions & Help › Integration › OPENGL mode and 64-bit Linux

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OPENGL mode and 64-bit Linux (Read 5871 times)

Lie Ryan

OPENGL mode and 64-bit Linux
Apr 13^th, 2010, 12:33am

I am posting this here because I cannot login to the bug tracker.

Processing fails miserably[1] in 64-bit Linux since the jogl and gluegen binary that processing comes with is 32-bit. This is silly since the fix is very easy; replacing the files: libgluegen-rt.so, ~~gluegen-rt.jar,~~ ~~gluegen.jar,~~ libjogl.so, libjogl_awt.so, ~~jogl.jar~~ with a 64-bit compiled version fixes everything.

[1] java.lang.UnsatisfiedLinkError: /path/to/libgluegen-rt.so: /path/to/libgluegen-rt.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch)

I can now run the OPENGL examples and all of them seems to be running fine from the latest SVN version.

I will see if I can hack build.xml to conditionally use the alternate version of these files if and detects it's compiling for amd64 Linux. For the meantime, if anyone is experiencing this problem and is unable to compile jogl and gluegen, here's mine: http://www.mediafire.com/file/dhu2qdyzy1f/jogl_gluegen_amd64.zip (WARNING: do not download files from unknown strangers in the internet, I am an unknown stranger. DISCLAIMER: these files works on my machine, I don't guarantee it works on yours, and I'm not responsible if you trashed your processing/machine because of them) (turns out there are precompiled binaries in ./libraries/opengl/library/*-natives-*.jar)

« Last Edit: Apr 13^th, 2010, 7:53am by Lie Ryan »

Lie Ryan

Re: OPENGL mode and 64-bit Linux
Reply #1 - Apr 13^th, 2010, 7:47am

Turns out there is a precompiled binaries in there all along hidden in opengl/library/jogl-natives-linux-amd64.jar and opengl/library/gluegen-rt-natives-linux-amd64.jar files; and there is no 'ant' rule to decompress them and processing doesn't do anything to automatically select the binaries. I'm attaching a build.xml that uncompresses these arch binaries.

Code:


Index: build.xml
===================================================================
--- build.xml   (revision 6618)
+++ build.xml   (working copy)
@@ -113,6 +113,12 @@
     <copy todir="${target.path}/libraries/video">
       <fileset dir="../video" includes="library/**,src/**" />
     </copy>
+
+    <!-- Unzip architecture specific precompiled libraries -->
+    <unzip dest="${target.path}/libraries/opengl/library">
+      <fileset dir="../opengl" includes="library/*-natives-${platform}-${os.arch}.jar"/>
+    </unzip>
+    <delete dir="${target.path}/libraries/opengl/library/META-INF"/>
     
     <!-- Unzip documentation + examples -->
     <unzip dest="${target.path}" src="shared/examples.zip" overwrite="false"/>

Or would it be better if processing detected the System.getProperty("os.arch") at runtime/startup and decompress one appropriately?

Jorge García

Re: OPENGL mode and 64-bit Linux
Reply #2 - Apr 29^th, 2010, 4:48pm

Hi im trying to use procesing-1.1 with OpenGL. On a 64 bit Linux (Ubuntu 9.10).
At first the program crashed with a strange error. I read you post and extract the 64 binaries in opengl/library/jogl-natives-linux-amd64.jar and opengl/library/gluegen-rt-natives-linux-amd64.jar to opengl/library
However when trying to run an example only get a grey screen and that's all. The programs don't crash but they are not doing anything.
I used the binary distribution. Do you have any sugestions?
Thanks in advance.

Lie Ryan

Re: OPENGL mode and 64-bit Linux
Reply #3 - May 1^st, 2010, 1:03am

Are the normal programs (i.e. non-OpenGL) running well after you decompressed the 64-bit libs? Are you sure there's no other error message?

Can you run other OpenGL programs? Try opening a terminal and run the `glxgears` and `glxinfo` program, see if hardware acceleration is turned on (look on the lines of "direct rendering" it should say "yes"). What graphic driver are you using, nVidia or ATi or others?

Larry Kyrala

Re: OPENGL mode and 64-bit Linux
Reply #4 - May 6^th, 2010, 10:58am

Just for convenience here's a simple ruby script to backup the *.so and update them:

Code:


#!/usr/bin/env ruby

require 'fileutils'

# script to fix processing for 64-bit linux
processing_dir = "/local/processing-1.1"

library_dir = File.join(processing_dir,"libraries","opengl","library");
backup_dir = File.join(library_dir,"original-native");
unpack_dir = File.join(library_dir,"unpack-amd64");
Dir.mkdir backup_dir unless File.exists?(backup_dir)
Dir.mkdir unpack_dir unless File.exists?(unpack_dir)

jars = Dir.glob(File.join(library_dir,"*.jar")).select {|f| f =~ /linux-amd64/ }
jars.each do |jar_file|
  system "unzip -o #{jar_file} -d #{unpack_dir}"
end  

libraries = Dir.glob(File.join(unpack_dir,"*.so"))
libraries.each do |so_file|
  src = File.join(library_dir,File.basename(so_file))
  unless File.exists?(File.join(backup_dir,File.basename(so_file)))
    FileUtils.mv(src, backup_dir)
  end
  FileUtils.cp(so_file, library_dir)
end

change the processing_dir to where you have processing installed and it should swap the *.so files for you.

htrex

Re: OPENGL mode and 64-bit Linux
Reply #5 - May 10^th, 2010, 7:53am

I've used the above script and 64 bit files are there (added verbosity for copy commands to highlight that) but still receiving the same error.

any other hint, please?

error:

Code:


processing.app.debug.RunnerException: UnsatisfiedLinkError: /home/htrex/sketchbook/libraries/opengl/library/libgluegen-rt.so: /home/htrex/sketchbook/libraries/opengl/library/libgluegen-rt.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch)

that's the output of the script:

Code:


./fixProcessingOpenGLx64.sh 
Archive:  /home/htrex/opt/processing-1.1/libraries/opengl/library/jogl-natives-linux-amd64.jar
  inflating: /home/htrex/opt/processing-1.1/libraries/opengl/library/unpack-amd64/META-INF/MANIFEST.MF  
  inflating: /home/htrex/opt/processing-1.1/libraries/opengl/library/unpack-amd64/META-INF/JAVA_MED.SF  
  inflating: /home/htrex/opt/processing-1.1/libraries/opengl/library/unpack-amd64/META-INF/JAVA_MED.RSA  
  inflating: /home/htrex/opt/processing-1.1/libraries/opengl/library/unpack-amd64/libjogl.so  
  inflating: /home/htrex/opt/processing-1.1/libraries/opengl/library/unpack-amd64/libjogl_awt.so  
  inflating: /home/htrex/opt/processing-1.1/libraries/opengl/library/unpack-amd64/libjogl_cg.so  
Archive:  /home/htrex/opt/processing-1.1/libraries/opengl/library/gluegen-rt-natives-linux-amd64.jar
  inflating: /home/htrex/opt/processing-1.1/libraries/opengl/library/unpack-amd64/META-INF/MANIFEST.MF  
  inflating: /home/htrex/opt/processing-1.1/libraries/opengl/library/unpack-amd64/META-INF/JAVA_MED.SF  
  inflating: /home/htrex/opt/processing-1.1/libraries/opengl/library/unpack-amd64/META-INF/JAVA_MED.RSA  
  inflating: /home/htrex/opt/processing-1.1/libraries/opengl/library/unpack-amd64/libgluegen-rt.so  
cp /home/htrex/opt/processing-1.1/libraries/opengl/library/unpack-amd64/libjogl.so /home/htrex/opt/processing-1.1/libraries/opengl/library
cp /home/htrex/opt/processing-1.1/libraries/opengl/library/unpack-amd64/libjogl_cg.so /home/htrex/opt/processing-1.1/libraries/opengl/library
cp /home/htrex/opt/processing-1.1/libraries/opengl/library/unpack-amd64/libgluegen-rt.so /home/htrex/opt/processing-1.1/libraries/opengl/library
cp /home/htrex/opt/processing-1.1/libraries/opengl/library/unpack-amd64/libjogl_awt.so /home/htrex/opt/processing-1.1/libraries/opengl/library

htrex YaBB Newbies Offline Posts: 3	Re: OPENGL mode and 64-bit Linux Reply #6 - May 10^th, 2010, 8:06am Nevermind, got it: needed to copy those .so files in the sketchbook libraries folder too....

Jorge García

Re: OPENGL mode and 64-bit Linux
Reply #7 - May 15^th, 2010, 6:37pm

Lie Ryan wrote on May 1^st, 2010, 1:03am:

Are the normal programs (i.e. non-OpenGL) running well after you decompressed the 64-bit libs Are you sure there's no other error message

Can you run other OpenGL programs Try opening a terminal and run the `glxgears` and `glxinfo` program, see if hardware acceleration is turned on (look on the lines of "direct rendering" it should say "yes"). What graphic driver are you using, nVidia or ATi or others

Thanx Lie
You were right, my problem was not procesing but the OpenGL in general, (I couldn't run any OpenGL program: glxgears etc)
I just installed Ubuntu 10.4 and now everythinh including procesing OpenGL programs run fine.

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