Fixed WEBP plugin is broken

[Usher]

IrfanView 4.54 32-bit,
WEBP.DLL version 4.54 32-bit, size 255*488 bytes, SHA1: 8E26001F45541FD92AD284184ACEB1DB2A311A84

Error message:

---------------------------
IrfanView
---------------------------
c:\Documents and Settings\PC\Local settings\Temp\f_000018.webp : Decode error !

Can't load PlugIn: "WEBP.DLL" !
Please install or update PlugIns from IrfanView homepage
and/or
enable the PlugIn in 'Help->PlugIns' menu.
(32 bit)

---------------------------

Info in 'Help->PlugIns' menu shows
* version: Unknown
* Info/Formats: Unknown (maybe 64-bit)

Previous version (4.51) works OK with the same webp image.

[Bhikkhu Pesala]

No problem here. Can you load any other WebP images? If so, then we need the specific image for testing.

This is my webp.dll for 4.54

[Kuki Dent]

Hi,
your WEBP.DLL is okay, mine has the same SHA1 Hashcode. So probably the image is somehow broken.

[j7n]

What is your operating system? The newly compiled plugins are no longer compatible with WinXP/2003, and have dependencies in KERNEL32 for InitializeCriticalSectionEx, InitializeConditionVariable, WakeConditionVariable, SleepConditionVariableCS.

WebP images save and load if I rename those imports with GetExitCodeThread (a fix for another problem where the imported functions were known to be unused), although the File-Open preview crashes.

They should remove XP from the list of supported systems on www.irfanview.com.

[Bhikkhu Pesala]

They should remove XP from the list of supported systems on www.irfanview.com.

I don't think that is necessary as long as a standard installation without the extra plugins still works on XP.

I noticed that the Plugins page still lists WebP.dll 4.51. Perhaps that page should state that some plugins do not work on XP? Have you emailed Irfan Skiljan about this issue?

[FalseMaster]

I rename those imports with GetExitCodeThread ... although the File-Open preview crashes.

Adapted for Windows XP/2k3 WebP 4.54 plugin. Insufficient tested, use it at your own risk.

[j7n]

Thank you! Do you have an idea why there is a delay with cpu usage before thumbnails come back corrupted in the thumbnails view?

[FalseMaster]

j7n
I could not reproduce such thing and regrettably don't have an answer.

[Usher]

At last!
32-bit plugin version 4.59 works in Windows XP again. Whoever did it, many, many thanks!
The updated plugin is available on IV plugins page:

https://www.irfanview.com/plugins.htm