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[ANN] Open Croquet for Squeak 5.2 (32bit) release

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Nikolay Suslov
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[ANN] Open Croquet for Squeak 5.2 (32bit) release

Nikolay Suslov
Hi all,

I'm pleased to announce, that the experimental version of Open Croquet for Squeak (https://blog.krestianstvo.org/en/open-croquet-for-squeak-6/) is now updated to the recent Squeak 5.2 (32bit). 
This update includes critical FIX for the Croquet's IslandReader, which is related to the new Squeak image segment loader code. 
The included Croquet demos have become usable in network scenarios, but with some requirements: For replication to work, a participant must run a Master of the selected demo at least once on its image (for example doing:  CroquetMaster new openInWorld). Then that participant could connect to any running Master on a network (for example doing: CroquetParticipant new openInWorld).  In the future updates this will be fixed.

Preloaded images:

- All-In-One Squeak 5.2 VM with preloaded Open Croquet image and content: https://www.krestianstvo.org/sdk/croquet/Squeak5.2-18225-32bit-All-in-One-Croquet.zip

- Only Squeak 5.2 with image with preloaded Open Croquet:

- Only content (Textures, Models, etc.): https://www.krestianstvo.org/sdk/croquet/Content.zip

Loading manually:

Don't forget to download and extract 'Only content' package to /Contents/Resources/ folder.

How to use it on the network:

If Master wanted to be discoverable, it's network address must be specified here:
CroquetHarness dispatcherAddress.
Participant should specify a Master's network address here: 
CroquetHarness defaultBroadcaster.

Here is the screenshot of one Master (on macOS) and two Participants (on Windows and macOS) collaborating together.

Screenshot-croquet.jpg

Best reagards,
Nikolai
Robert Hirschfeld
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Re: [ANN] Open Croquet for Squeak 5.2 (32bit) release

Robert Hirschfeld
*** Great! ***

Thank you, Nikolai. :)

Best,
Robert


> On 26. Oct 2018, at 04:47, Nikolay Suslov <[hidden email]> wrote:
>
> Hi all,
>
> I'm pleased to announce, that the experimental version of Open Croquet for Squeak (https://blog.krestianstvo.org/en/open-croquet-for-squeak-6/) is now updated to the recent Squeak 5.2 (32bit).
> This update includes critical FIX for the Croquet's IslandReader, which is related to the new Squeak image segment loader code.
> The included Croquet demos have become usable in network scenarios, but with some requirements: For replication to work, a participant must run a Master of the selected demo at least once on its image (for example doing:  CroquetMaster new openInWorld). Then that participant could connect to any running Master on a network (for example doing: CroquetParticipant new openInWorld).  In the future updates this will be fixed.
>
> Preloaded images:
>
> - All-In-One Squeak 5.2 VM with preloaded Open Croquet image and content: https://www.krestianstvo.org/sdk/croquet/Squeak5.2-18225-32bit-All-in-One-Croquet.zip
>
> - Only Squeak 5.2 with image with preloaded Open Croquet:
> https://www.krestianstvo.org/sdk/croquet/Squeak5.2-18225-32bit-Croquet-Image.zip
>
> - Only content (Textures, Models, etc.): https://www.krestianstvo.org/sdk/croquet/Content.zip
>
> Loading manually:
>
> (Installer fromUrl: 'http://sdk.krestianstvo.org/sdk/croquet/croquet-sn.3.mcm') install.  
> Don't forget to download and extract 'Only content' package to /Contents/Resources/ folder.
>
> How to use it on the network:
>
> If Master wanted to be discoverable, it's network address must be specified here:
> CroquetHarness dispatcherAddress.
> Participant should specify a Master's network address here:
> CroquetHarness defaultBroadcaster.
>
> Here is the screenshot of one Master (on macOS) and two Participants (on Windows and macOS) collaborating together.
>
> <Screenshot-croquet.jpg>
>
> Best reagards,
> Nikolai
>


Chris Muller-3
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Re: [ANN] Open Croquet for Squeak 5.2 (32bit) release

Chris Muller-3
In reply to this post by Nikolay Suslov
One of Squeak's coolest projects ever, thanks Nikolay!

One question, sorry I didn't try but will it work in 64-bit Squeak and, if not, why not and when will it?

Thanks!

On Thu, Oct 25, 2018 at 9:47 PM Nikolay Suslov <[hidden email]> wrote:
Hi all,

I'm pleased to announce, that the experimental version of Open Croquet for Squeak (https://blog.krestianstvo.org/en/open-croquet-for-squeak-6/) is now updated to the recent Squeak 5.2 (32bit). 
This update includes critical FIX for the Croquet's IslandReader, which is related to the new Squeak image segment loader code. 
The included Croquet demos have become usable in network scenarios, but with some requirements: For replication to work, a participant must run a Master of the selected demo at least once on its image (for example doing:  CroquetMaster new openInWorld). Then that participant could connect to any running Master on a network (for example doing: CroquetParticipant new openInWorld).  In the future updates this will be fixed.

Preloaded images:

- All-In-One Squeak 5.2 VM with preloaded Open Croquet image and content: https://www.krestianstvo.org/sdk/croquet/Squeak5.2-18225-32bit-All-in-One-Croquet.zip

- Only Squeak 5.2 with image with preloaded Open Croquet:

- Only content (Textures, Models, etc.): https://www.krestianstvo.org/sdk/croquet/Content.zip

Loading manually:

Don't forget to download and extract 'Only content' package to /Contents/Resources/ folder.

How to use it on the network:

If Master wanted to be discoverable, it's network address must be specified here:
CroquetHarness dispatcherAddress.
Participant should specify a Master's network address here: 
CroquetHarness defaultBroadcaster.

Here is the screenshot of one Master (on macOS) and two Participants (on Windows and macOS) collaborating together.

Screenshot-croquet.jpg

Best reagards,
Nikolai
Eliot Miranda-2
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Re: [ANN] Open Croquet for Squeak 5.2 (32bit) release

Eliot Miranda-2
In reply to this post by Nikolay Suslov
Hi Nikolay,

On Oct 25, 2018, at 7:47 PM, Nikolay Suslov <[hidden email]> wrote:

Hi all,

I'm pleased to announce, that the experimental version of Open Croquet for Squeak (https://blog.krestianstvo.org/en/open-croquet-for-squeak-6/) is now updated to the recent Squeak 5.2 (32bit). 

Great news, thank you!

This update includes critical FIX for the Croquet's IslandReader, which is related to the new Squeak image segment loader code. 

Can you explain what the bug was, and what is the fix?

The included Croquet demos have become usable in network scenarios, but with some requirements: For replication to work, a participant must run a Master of the selected demo at least once on its image (for example doing:  CroquetMaster new openInWorld). Then that participant could connect to any running Master on a network (for example doing: CroquetParticipant new openInWorld).  In the future updates this will be fixed.

Preloaded images:

- All-In-One Squeak 5.2 VM with preloaded Open Croquet image and content: https://www.krestianstvo.org/sdk/croquet/Squeak5.2-18225-32bit-All-in-One-Croquet.zip

- Only Squeak 5.2 with image with preloaded Open Croquet:

- Only content (Textures, Models, etc.): https://www.krestianstvo.org/sdk/croquet/Content.zip

Loading manually:

Don't forget to download and extract 'Only content' package to /Contents/Resources/ folder.

How to use it on the network:

If Master wanted to be discoverable, it's network address must be specified here:
CroquetHarness dispatcherAddress.
Participant should specify a Master's network address here: 
CroquetHarness defaultBroadcaster.

Here is the screenshot of one Master (on macOS) and two Participants (on Windows and macOS) collaborating together.

<Screenshot-croquet.jpg>

Best reagards,
Nikolai
Nikolay Suslov
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Re: [ANN] Open Croquet for Squeak 5.2 (32bit) release

Nikolay Suslov
Hello Eliot,

I am very inspired by the new Squeak 5.2 VM and its amazing speed! Just dreaming of having Open Croquet working on it. And now after first early steps of porting from Squeak 4.x, even without formal tests, it is seen how much faster Open Croquet demos are working.

On Sat, Oct 27, 2018 at 7:48 PM Eliot Miranda <[hidden email]> wrote:
Hi Nikolay,

On Oct 25, 2018, at 7:47 PM, Nikolay Suslov <[hidden email]> wrote:

Hi all,

I'm pleased to announce, that the experimental version of Open Croquet for Squeak (https://blog.krestianstvo.org/en/open-croquet-for-squeak-6/) is now updated to the recent Squeak 5.2 (32bit). 

Great news, thank you!

This update includes critical FIX for the Croquet's IslandReader, which is related to the new Squeak image segment loader code. 

Can you explain what the bug was, and what is the fix?


Actually, this fix is in adapting the IslandReader segment loading methods to the new behaviour of '#primitiveLoadSegmentFrom: segmentWordArray outPointers: outPointerArray': "Upon successful completion, the wordArray will have been becomed into anArray of the loaded objects." In original Open Croquet for Squeak 4.x,  'IslandReader>>#loadSegmentFromData: segmentWordArray outPointers: outPointerArray' traversing the loaded WordArrayForSegment with #nextObject for post-sending startUp message to objects ('#startUpInIslandReader: reader'). But, in Squeak 5.2 it should uses an array of the loaded objects, instead WordArrayForSegment object. That's it.


Best regards,
Nikolai

 

The included Croquet demos have become usable in network scenarios, but with some requirements: For replication to work, a participant must run a Master of the selected demo at least once on its image (for example doing:  CroquetMaster new openInWorld). Then that participant could connect to any running Master on a network (for example doing: CroquetParticipant new openInWorld).  In the future updates this will be fixed.

Preloaded images:

- All-In-One Squeak 5.2 VM with preloaded Open Croquet image and content: https://www.krestianstvo.org/sdk/croquet/Squeak5.2-18225-32bit-All-in-One-Croquet.zip

- Only Squeak 5.2 with image with preloaded Open Croquet:

- Only content (Textures, Models, etc.): https://www.krestianstvo.org/sdk/croquet/Content.zip

Loading manually:

Don't forget to download and extract 'Only content' package to /Contents/Resources/ folder.

How to use it on the network:

If Master wanted to be discoverable, it's network address must be specified here:
CroquetHarness dispatcherAddress.
Participant should specify a Master's network address here: 
CroquetHarness defaultBroadcaster.

Here is the screenshot of one Master (on macOS) and two Participants (on Windows and macOS) collaborating together.

<Screenshot-croquet.jpg>

Best reagards,
Nikolai
timrowledge
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Re: [ANN] Open Croquet for Squeak 5.2 (32bit) release

timrowledge
Trying this out on a Raspberry Pi (obviously).
First major problem is that

OGLUnix>>openGLLibraryName
        ^Smalltalk osVersion = 'linux'
                ifTrue: ['libGL.so.1']
                ifFalse: ['GL']
has a #'' (apparently a ByteSymbol with just char value 0 in it) at the end of the method ; which of course a BlockClosure does not understand.

After 'fixing' that it goes on a little until we get to OpenGL>>#glMatrixMode:
glMatrixMode: mode
        "This method was automatically generated."
        "void glMatrixMode(GLenum mode);"
        <apicall: void 'glMatrixMode' (ulong) module: '#openGLLibraryName'>
        ^self externalCallFailed

The" module: '#openGLLibraryName'>" looks a bit odd to me... shouldn't that have been recompiled to use the real library name?

tim
--
tim Rowledge; [hidden email]; http://www.rowledge.org/tim
Trancelators interpret messages from the dead



Nikolay Suslov
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Re: [ANN] Open Croquet for Squeak 5.2 (32bit) release

Nikolay Suslov
In reply to this post by Chris Muller-3
Hello Chris,

On Fri, Oct 26, 2018 at 9:27 PM Chris Muller <[hidden email]> wrote:
One of Squeak's coolest projects ever, thanks Nikolay!

One question, sorry I didn't try but will it work in 64-bit Squeak and, if not, why not and when will it?


Yes, actually it should.
I just have updated Open Croquet integration with support of SmallFloat64 class, which is used by default on 64 bit Squeak.
Don't forget to enable B3DXUsesOpenGL=1 in Squeak.ini for OpenGL.

or do (Installer fromUrl: 'http://sdk.krestianstvo.org/sdk/croquet/croquet-sn.4.mcm') install.

As for macOS, there is seems to be a problem with the B3DAcceleratorPlugin for 64 bit, which constantly craches the VM.
May be somebody had a success of running B3DAcceleratorPlugin with OpenGL on 64 bit Squeak for macOS?

Best regards,
Nikolai

 
Thanks!

On Thu, Oct 25, 2018 at 9:47 PM Nikolay Suslov <[hidden email]> wrote:
Hi all,

I'm pleased to announce, that the experimental version of Open Croquet for Squeak (https://blog.krestianstvo.org/en/open-croquet-for-squeak-6/) is now updated to the recent Squeak 5.2 (32bit). 
This update includes critical FIX for the Croquet's IslandReader, which is related to the new Squeak image segment loader code. 
The included Croquet demos have become usable in network scenarios, but with some requirements: For replication to work, a participant must run a Master of the selected demo at least once on its image (for example doing:  CroquetMaster new openInWorld). Then that participant could connect to any running Master on a network (for example doing: CroquetParticipant new openInWorld).  In the future updates this will be fixed.

Preloaded images:

- All-In-One Squeak 5.2 VM with preloaded Open Croquet image and content: https://www.krestianstvo.org/sdk/croquet/Squeak5.2-18225-32bit-All-in-One-Croquet.zip

- Only Squeak 5.2 with image with preloaded Open Croquet:

- Only content (Textures, Models, etc.): https://www.krestianstvo.org/sdk/croquet/Content.zip

Loading manually:

Don't forget to download and extract 'Only content' package to /Contents/Resources/ folder.

How to use it on the network:

If Master wanted to be discoverable, it's network address must be specified here:
CroquetHarness dispatcherAddress.
Participant should specify a Master's network address here: 
CroquetHarness defaultBroadcaster.

Here is the screenshot of one Master (on macOS) and two Participants (on Windows and macOS) collaborating together.

Screenshot-croquet.jpg

Best reagards,
Nikolai
Eliot Miranda-2
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Re: [ANN] Open Croquet for Squeak 5.2 (32bit) release

Eliot Miranda-2
In reply to this post by Nikolay Suslov
Hi Nikolay,

On Sat, Oct 27, 2018 at 3:42 PM Nikolay Suslov <[hidden email]> wrote:
Hello Eliot,

I am very inspired by the new Squeak 5.2 VM and its amazing speed! Just dreaming of having Open Croquet working on it. And now after first early steps of porting from Squeak 4.x, even without formal tests, it is seen how much faster Open Croquet demos are working.

Ah, that's *great* to hear! Any quantitive info appreciated when you have it.  For example, knowing what's happened to frame rates would be good.  But more interesting, and perhaps more difficult, is discovering precisely what activities in Open Croquet are affected and by how much.

On Sat, Oct 27, 2018 at 7:48 PM Eliot Miranda <[hidden email]> wrote:
Hi Nikolay,

On Oct 25, 2018, at 7:47 PM, Nikolay Suslov <[hidden email]> wrote:

Hi all,

I'm pleased to announce, that the experimental version of Open Croquet for Squeak (https://blog.krestianstvo.org/en/open-croquet-for-squeak-6/) is now updated to the recent Squeak 5.2 (32bit). 

Great news, thank you!

This update includes critical FIX for the Croquet's IslandReader, which is related to the new Squeak image segment loader code. 

Can you explain what the bug was, and what is the fix?


Actually, this fix is in adapting the IslandReader segment loading methods to the new behaviour of '#primitiveLoadSegmentFrom: segmentWordArray outPointers: outPointerArray': "Upon successful completion, the wordArray will have been becomed into anArray of the loaded objects." In original Open Croquet for Squeak 4.x,  'IslandReader>>#loadSegmentFromData: segmentWordArray outPointers: outPointerArray' traversing the loaded WordArrayForSegment with #nextObject for post-sending startUp message to objects ('#startUpInIslandReader: reader'). But, in Squeak 5.2 it should uses an array of the loaded objects, instead WordArrayForSegment object. That's it.

Ah, good; that makes perfect sense.  Thanks!
 
Best regards,
Nikolai 
The included Croquet demos have become usable in network scenarios, but with some requirements: For replication to work, a participant must run a Master of the selected demo at least once on its image (for example doing:  CroquetMaster new openInWorld). Then that participant could connect to any running Master on a network (for example doing: CroquetParticipant new openInWorld).  In the future updates this will be fixed.

Preloaded images:

- All-In-One Squeak 5.2 VM with preloaded Open Croquet image and content: https://www.krestianstvo.org/sdk/croquet/Squeak5.2-18225-32bit-All-in-One-Croquet.zip

- Only Squeak 5.2 with image with preloaded Open Croquet:

- Only content (Textures, Models, etc.): https://www.krestianstvo.org/sdk/croquet/Content.zip

Loading manually:

Don't forget to download and extract 'Only content' package to /Contents/Resources/ folder.

How to use it on the network:

If Master wanted to be discoverable, it's network address must be specified here:
CroquetHarness dispatcherAddress.
Participant should specify a Master's network address here: 
CroquetHarness defaultBroadcaster.

Here is the screenshot of one Master (on macOS) and two Participants (on Windows and macOS) collaborating together.

<Screenshot-croquet.jpg>

Best reagards,
Nikolai
_,,,^..^,,,_
best, Eliot
Bert Freudenberg
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Re: [ANN] Open Croquet for Squeak 5.2 (32bit) release

Bert Freudenberg
In reply to this post by timrowledge
On Sat, Oct 27, 2018 at 4:42 PM tim Rowledge <[hidden email]> wrote:
Trying this out on a Raspberry Pi (obviously).
First major problem is that

OGLUnix>>openGLLibraryName
        ^Smalltalk osVersion = 'linux'
                ifTrue: ['libGL.so.1']
                ifFalse: ['GL']
has a #'' (apparently a ByteSymbol with just char value 0 in it) at the end of the method ; which of course a BlockClosure does not understand.

After 'fixing' that it goes on a little until we get to OpenGL>>#glMatrixMode:
glMatrixMode: mode
        "This method was automatically generated."
        "void glMatrixMode(GLenum mode);"
        <apicall: void 'glMatrixMode' (ulong) module: '#openGLLibraryName'>
        ^self externalCallFailed

The" module: '#openGLLibraryName'>" looks a bit odd to me... shouldn't that have been recompiled to use the real library name?

Yes, but it doesn't change the source code. Follow the senders of openGLLibraryName to see the magic.

- Bert -
timrowledge
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Re: [ANN] Open Croquet for Squeak 5.2 (32bit) release

timrowledge


> On 2018-10-29, at 12:26 PM, Bert Freudenberg <[hidden email]> wrote:
>
> On Sat, Oct 27, 2018 at 4:42 PM tim Rowledge <[hidden email]> wrote:
> Trying this out on a Raspberry Pi (obviously).
> First major problem is that
>
> OGLUnix>>openGLLibraryName
>         ^Smalltalk osVersion = 'linux'
>                 ifTrue: ['libGL.so.1']
>                 ifFalse: ['GL']

It's actually a bit worse - the osVersion returned by Raspbian is 'linux-gnu' - so I tried changing that to
openGLLibraryName
        ^(Smalltalk osVersion beginsWith: 'linux')
                ifTrue: ['libGL.so.1']
                ifFalse: ['GL']
which got a bit further.

> has a #'' (apparently a ByteSymbol with just char value 0 in it) at the end of the method ; which of course a BlockClosure does not understand.
>
[snip]
>
> The" module: '#openGLLibraryName'>" looks a bit odd to me... shouldn't that have been recompiled to use the real library name?
>
> Yes, but it doesn't change the source code. Follow the senders of openGLLibraryName to see the magic.

OK, so it's supposed to send #openGLLibraryName at some startup point. Very clever. Unfortunately it appears something else goes wrong pretty quickly and OGLExtManager>>#loadExtension: uses glExtGetProcAddress: which even decompiled says
        <cdecl: ulong 'glXGetProcAddressARB' (char*) module: 'GL'>
Which doesn't seem right. Should it also use the #openGLLibraryName thing?

I'd love to see this working on a Pi but I'm going to need help with anything to do with making the opengl trickery work.

tim
--
tim Rowledge; [hidden email]; http://www.rowledge.org/tim
Strange OpCodes: FD: Failsafe Disarmed



Bert Freudenberg
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Re: [ANN] Open Croquet for Squeak 5.2 (32bit) release

Bert Freudenberg
On Mon, Oct 29, 2018 at 5:49 PM tim Rowledge <[hidden email]> wrote:


> On 2018-10-29, at 12:26 PM, Bert Freudenberg <[hidden email]> wrote:
>
> On Sat, Oct 27, 2018 at 4:42 PM tim Rowledge <[hidden email]> wrote:
> Trying this out on a Raspberry Pi (obviously).
> First major problem is that
>
> OGLUnix>>openGLLibraryName
>         ^Smalltalk osVersion = 'linux'
>                 ifTrue: ['libGL.so.1']
>                 ifFalse: ['GL']

It's actually a bit worse - the osVersion returned by Raspbian is 'linux-gnu' - so I tried changing that to
openGLLibraryName
        ^(Smalltalk osVersion beginsWith: 'linux')
                ifTrue: ['libGL.so.1']
                ifFalse: ['GL']
which got a bit further.

> has a #'' (apparently a ByteSymbol with just char value 0 in it) at the end of the method ; which of course a BlockClosure does not understand.
>
[snip]
>
> The" module: '#openGLLibraryName'>" looks a bit odd to me... shouldn't that have been recompiled to use the real library name?
>
> Yes, but it doesn't change the source code. Follow the senders of openGLLibraryName to see the magic.

OK, so it's supposed to send #openGLLibraryName at some startup point. Very clever.

Yep, in OpenGL>>initialize it calls "self privateInstallLibrary: self openGLLibraryName." which patches the library name into all compiled FFI methods.

Unfortunately it appears something else goes wrong pretty quickly and OGLExtManager>>#loadExtension: uses glExtGetProcAddress: which even decompiled says
        <cdecl: ulong 'glXGetProcAddressARB' (char*) module: 'GL'>
Which doesn't seem right. Should it also use the #openGLLibraryName thing?

Ah, that seems to be an actual bug.

#privateInstallLibrary: does not go into the subclasses. In OGLWin32, that method has the correct 'opengl32.dll'  module.  OGLMacOSX uses a different mechanism entirely. And OGLUnix relies on "GL" linking to the right thing. 

So I'd say in privateInstallLibrary: we need to patch both OpenGL and OGLUnix.

- Bert -

 
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