[Bug 48555] New: Helm Standalone/VST plugin 32bit version has random content in window, 64bit version works OK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48555

Bug ID: 48555
           Summary: Helm Standalone/VST plugin 32bit version has random
                    content in window, 64bit version works OK
           Product: Wine
           Version: 5.0
          Hardware: x86-64
               URL: https://tytel.org/helm/direct_downloads/
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: Mint

Created attachment 66367
  --> https://bugs.winehq.org/attachment.cgi?id=66367
Screenshot on left 64 bit version, on right 32 bit version.

Helm Standalone/VST plugin 32bit version has random content in window, 64bit
version works OK

Standalone version and VST plugin (tested in LMMS) behaves the same. 32 bit
version window content change random, often displaying the contents of other
windows running on the system. Setting "Hide wine version" in wine staging does
not change the behavior.

On screenshot on left 64 bit version (everything OK), on right 32 bit version
(gliches, random video memory).

Steps to reproduce:
1. Install Helm 32 bit - https://tytel.org/helm/direct_downloads/
2. Run Helm

[Bug 48555] Helm Standalone/VST plugin 32bit version has random content in window, 64bit version works OK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48555

Andrzej Kilijański  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |download

[Bug 48555] Helm Standalone/VST plugin 32bit version has random content in window, 64bit version works OK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48555

--- Comment #1 from Andrzej Kilijański  ---
Created attachment 66368
  --> https://bugs.winehq.org/attachment.cgi?id=66368
Log from 32 bit version

[Bug 48555] Helm Standalone/VST plugin 32bit version has random content in window, 64bit version works OK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48555

--- Comment #2 from Andrzej Kilijański  ---
Created attachment 66369
  --> https://bugs.winehq.org/attachment.cgi?id=66369
Log form 64bit version

[Bug 48555] Helm Standalone/VST plugin 32bit version has random content in window, 64bit version works OK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48555

--- Comment #3 from Andrzej Kilijański  ---
The 32 bit plugin still works, only the display is broken

[Bug 48555] Helm Standalone/VST plugin 32bit version has random content in window, 64bit version works OK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48555

--- Comment #4 from Andrzej Kilijański  ---
Helm is open source so here is source code https://github.com/mtytel/helm.

[Bug 48555] Helm Standalone/VST plugin 32bit version has random content in window, 64bit version works OK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48555

Louis Lenders  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]

--- Comment #5 from Louis Lenders  ---
Hi, it`s me again

I cannot reproduce this. The 32-bit version shows fine here (no visual
glitches) as well. No workarounds used.

Maybe someone else could try if he can reproduce this.

Thanks anyway for the link for the source.

It shows they check for wine in 
JUCE/modules/juce_core/native/juce_win32_Threads.cpp

bool juce_isRunningInWine()
{
    HMODULE ntdll = GetModuleHandleA ("ntdll");
    return ntdll != 0 && GetProcAddress (ntdll, "wine_get_version") != nullptr;
}

but apparently it`s only used 
for replacing some fonts so it won`t break anything and is not cause of this
bug (I guess)

I add some additional here:

Google for juce_isRunningInWine shows  some projects that probably still have
broken codepath (I guess) like , SimpelDJ
(https://github.com/vinniefalco/SimpleDJ)

static UpdateLayeredWinFunc updateLayeredWindow = nullptr;

bool Desktop::canUseSemiTransparentWindows() noexcept
{
    if (updateLayeredWindow == nullptr && ! juce_isRunningInWine())
        updateLayeredWindow = (UpdateLayeredWinFunc) getUser32Function
("UpdateLayeredWindow");

return updateLayeredWindow != nullptr;
}

Regards

[Bug 48555] Helm Standalone/VST plugin 32bit version has random content in window, 64bit version works OK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48555

--- Comment #6 from Andrzej Kilijański  ---
(In reply to Louis Lenders from comment #5)
> I cannot reproduce this. The 32-bit version shows fine here (no visual
> glitches) as well. No workarounds used.
>
> Maybe someone else could try if he can reproduce this.

Hi Louis!

After your results, I did more tests.
I did the first test on an older computer with Geforce GT 640 (nvidia 340
driver) and there is no problem. Everything works as it should. The same
distribution Linux Mint 19.3 Tricia 64bit Cinnamon.

Then I did more tests on my computer with Geforce GTX 1060 6GB. And on the open
driver xserver-xorg-video-nouveau (ver 1: 1.0.15-2) everything works fine.

Unfortunately, the manufacturer's drivers have these glitches. Window has
random content. I tested the drivers in versions:
- nvidia-driver-435 (ver 435.21-0ubuntu0.18.04.2)
- nvidia-driver-390 (ver 390.116-0ubuntu0.18.04.3)
- nvidia-driver-430 (ver 430.50-0ubuntu0.18.04.2)

Maybe WINE is trying to use some OpenGL extension for my graphics card (GTX
1060) which is not available on older cards? And something goes wrong.

Regards

[Bug 48555] Helm Standalone/VST plugin 32bit version has random content in window, 64bit version works OK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48555

Andrzej Kilijański  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #7 from Andrzej Kilijański  ---
Tested again on 5.13 and now works OK. Can be closed. On 5.12 32bit not worked
for me so changes in 5.13 fixed that issue.

Thanks

[Bug 48555] Helm Standalone/VST plugin 32bit version has random content in window, 64bit version works OK

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48555

Alexandre Julliard  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #8 from Alexandre Julliard  ---
Closing bugs fixed in 5.14.