Problems running under Linux mono

[thatch]

It's my first time trying to run the tools, and I uncovered an error when running in the obvious way on Linux. This occurs under both older Ubuntu (mono 3.2.8) and recent Arch (mono 4.8.0). The same release works fine under Windows 10. I haven't looked into whether previous GerberTools releases behave any better though.

$ cd GerberTools_2017_2_17/Panelizer
$ mono GerberPanelizer.exe

Unhandled Exception:
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentException: XOR data length expected 2046820352, read 1370
Parameter name: stream
  at System.Drawing.Icon.InitFromStreamWithSize (System.IO.Stream stream, Int32 width, Int32 height) [0x00000] in <filename unknown>:0 
  at System.Drawing.Icon..ctor (System.Runtime.Serialization.SerializationInfo info, StreamingContext context) [0x00000] in <filename unknown>:0 
  at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&)
  at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0 
  --- End of inner exception stack trace ---
  at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0 
  at System.Reflection.MonoCMethod.DoInvoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 
  at System.Reflection.MonoCMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 
  at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0 
  at System.Runtime.Serialization.ObjectRecord.LoadData (System.Runtime.Serialization.ObjectManager manager, ISurrogateSelector selector, StreamingContext context) [0x00000] in <filename unknown>:0 
  at System.Runtime.Serialization.ObjectManager.DoFixups () [0x00000] in <filename unknown>:0 
  at System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadNextObject (System.IO.BinaryReader reader) [0x00000] in <filename unknown>:0 
  at System.Runtime.Serialization.Formatters.Binary.ObjectReader.ReadObjectGraph (BinaryElement elem, System.IO.BinaryReader reader, Boolean readHeaders, System.Object& result, System.Runtime.Remoting.Messaging.Header[]& headers) [0x00000] in <filename unknown>:0 
  at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.NoCheckDeserialize (System.IO.Stream serializationStream, System.Runtime.Remoting.Messaging.HeaderHandler handler) [0x00000] in <filename unknown>:0 
  at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize (System.IO.Stream serializationStream) [0x00000] in <filename unknown>:0 
  at System.Resources.ResourceReader.ReadNonPredefinedValue (System.Type exp_type) [0x00000] in <filename unknown>:0 
  at System.Resources.ResourceReader.ReadValueVer2 (Int32 type_index) [0x00000] in <filename unknown>:0 
  at System.Resources.ResourceReader.LoadResourceValues (ResourceCacheItem[] store) [0x00000] in <filename unknown>:0 
  at System.Resources.ResourceReader+ResourceEnumerator.FillCache () [0x00000] in <filename unknown>:0 
  at System.Resources.ResourceReader+ResourceEnumerator..ctor (System.Resources.ResourceReader readerToEnumerate) [0x00000] in <filename unknown>:0 
  at System.Resources.ResourceReader.GetEnumerator () [0x00000] in <filename unknown>:0 
  at System.Resources.ResourceSet.ReadResources () [0x00000] in <filename unknown>:0 
  at System.Resources.ResourceSet.GetObjectInternal (System.String name, Boolean ignoreCase) [0x00000] in <filename unknown>:0 
  at System.Resources.ResourceSet.GetObject (System.String name, Boolean ignoreCase) [0x00000] in <filename unknown>:0 
  at System.Resources.RuntimeResourceSet.GetObject (System.String name, Boolean ignoreCase) [0x00000] in <filename unknown>:0 
  at System.Resources.ResourceManager.GetObject (System.String name, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 
  at System.Resources.ResourceManager.GetObject (System.String name) [0x00000] in <filename unknown>:0 
  at GerberCombinerBuilder.GerberPanelizerParent.InitializeComponent () [0x00000] in <filename unknown>:0 
  at GerberCombinerBuilder.GerberPanelizerParent..ctor () [0x00000] in <filename unknown>:0 
  at (wrapper remoting-invoke-with-check) GerberCombinerBuilder.GerberPanelizerParent:.ctor ()
  at GerberCombinerBuilder.Program.Main () [0x00000] in <filename unknown>:0 

[thatch]

I read the note at http://blog.thisisnotrocketscience.nl/projects/pcb-panelizer/ that says

1. command line tools should work, which I did not check.
2. that I'd need to "replace the openTK dll with the mono version" but unsure what that entails, as I'm not that familiar with Mono.

(The readme says "should work" without restriction though, so I tried the GUI first.)

I took a look at the source and this is related to loading an ico file. I'm not sure which yet.

[thatch]

The last line when running strce is an attempt to open GerberPanelizer.resources.dll (ENOENT), which makes me think it's attempting to load a PE resources from itself. It appears that the icons in the release zip are all a format with valid headers, but then the entries all start with "\x89PNG". I don't see code to load this in https://github.com/mono/mono/blob/master/mcs/class/System.Drawing/System.Drawing/Icon.cs (but there's a patch on https://bugzilla.xamarin.com/show_bug.cgi?id=30715 that does).

I'll try swapping out the icon resources and running again; I assume the normal build requires Visual Studio, and there isn't a commandline build script that works on Linux?

[thatch]

Replacing it with Resource Hacker was insufficient to get it running under mono -- I'm not sure which icon it's loading quite yet (it's either something mmap'd or read over IPC, as there's no read containing 'PNG' nearby). I checked and the command line utilities do work, so perhaps the readme should just be adjusted to be more specific in the meantime?

[StijnKuipers]

I'll test it on a linux vm - see if I can fix this somehow. If it really only is the PNG stuff it should be a relatively simple fix. Did you try running mono with that patch? Very odd that png streams are not supported in this particular way.

So far I've only built it on Visual Studio - if somebody wants to make/maintain a buildscript for other systems - be my guest. I will personally not make/maintain one - another support headache.

[thatch]

With the patch it gets slightly further,

Unhandled Exception:
System.InvalidCastException: Specified cast is not valid.
  at System.Drawing.Icon.SaveBestSingleIcon (System.IO.BinaryWriter writer, System.Int32 width, System.Int32 height) [0x000b0] in <77ff46021c554b57be5b7a306d989e5d>:0 
  at System.Drawing.Icon.Save (System.IO.Stream outputStream, System.Int32 width, System.Int32 height) [0x00031] in <77ff46021c554b57be5b7a306d989e5d>:0 
  at System.Drawing.Icon.GetInternalBitmap () [0x00029] in <77ff46021c554b57be5b7a306d989e5d>:0 
  at System.Drawing.Icon.ToBitmap () [0x0001b] in <77ff46021c554b57be5b7a306d989e5d>:0 
  at (wrapper remoting-invoke-with-check) System.Drawing.Icon:ToBitmap ()
  at System.Windows.Forms.XplatUIX11.SetIcon (System.Windows.Forms.Hwnd hwnd, System.Drawing.Icon icon) [0x00021] in <e37081a3704b4473a59cdf5048ad96bc>:0 

I then hacked up GetInternalBitmap to do

if (imageData[0] is PNGImage) {
  bitmap = ((PNGImage)imageData[0]).png;
} else ...

and it gets further. It launches and has a valid icon, but then when using File->New it crashes in OpenTK saying "The specified window isn't an OpenGL window." Since you mentioned replacing this with the "mono version", I just built OpenTK from AUR and copied it in place... now New causes the window to become painted with the null brush. Did you have something more specific in mind for "replacing"?

[thatch]

Aha. I think I'm hitting opentk/opentk#393 (I do have an nvidia card, and that user is also on Arch). __GL_THREADED_OPTIMIZATIONS=0 got the File->New to complete and show graph paper, and I can load a board (this is with the Linux version of OpenTK).

The right pane has a working splitter, but no contents, just gray

.

Aside from that, it exports ok (some messages in console, but the gerbers look fine).

[dromer]

Hmm, also running into this while trying to open this project with mono.

This machine happens to also have an nvidia gpu (and using the associated nvidia driver), but the solution to use __GL_THREADED_OPTIMIZATIONS=0 doesn't seem to work as I get the exact same System.Reflection.TargetInvocationException

Any ideas?

[thatch]

@dromer The TargetInvocationException implies you need to remove openTK.dll from the local directory, so it uses the system-installed one. (If you're on Arch, it's in AUR.)

[dromer]

Hi @thatch , I renamed OpenTK.dll and installed libopentk1.1-cil (wich provides OpenTK.dll on ubuntu 16.04) and still get System.Reflection.TargetInvocationException

[thatch]

Ah, I think I was incorrect then. Does your error have "XOR data length expected" as my paste above? If so, that's the PNG icon issue. Ways forward are either:

1. Recompile with "normal" icon resources (requires Windows, basically)
2. Patch and recompile Mono. There's a patch that worked well enough, but it doesn't apply to current mono-git anymore, and I need to get it fixed up.

[dromer]

Yes I did get the 'XOR data length' line as with you.

I didn't try to compile the code myself, but used the GerberTools_2017_2_17.zip binary release.
Honestly I'm also not looking to patch and recompile mono for this.

[phl0]

Is there any update to this? I am also failing the XOR stuff but would like to run the Panelizer on Linux.

[davidbitton]

Same here compiling the latest from the repo using Visual Studio Mac.