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[PATCH v4 0/6] MR9397: dlls/sane.ds: Support ADF-Scans and fix TWSX_MEMORY
by Bernd Herd (＠herdsoft) Nov. 14, 2025

Nov. 14, 2025

This merge request adds support to scan a batch of images from a scanner with Automatic Document Feeder (ADF) to the sane.ds. It also fixes problems with the buffered memory transfer mode TWSX_MEMORY, that are caused by related reasons. Before, activating the ADF only scanned the first image in the batch and then dischared the remaining images without scanning. # Why ADF scans failed Prior to this merge request, the sane.ds was based on the principle that for every successful call to sane_start there is exactly one call to sane_cancel. This was already established on the lowest level in unixlib.c: ``` static NTSTATUS start_device( void *args ) { SANE_Status status; - if (device_started) return STATUS_SUCCESS; status = sane_start( device_handle ); [...] static NTSTATUS cancel_device( void *args ) { if (device_started) sane_cancel( device_handle ); device_started = FALSE; return STATUS_SUCCESS; ``` However the sane API is designed so that for every image in a batch, sane_start must be called without a prior call to sane_cancel, as sane_cancel ends the whole batch. So for an ADF-Scan with 5 pages, sane_start is called 5 times and sane_cancel is to be called once. https://sane-project.gitlab.io/standard/api.html#code-flow So the call to ``` SANE_CALL( cancel_device, NULL ); ``` in SANE_ImageNativeXferGet prevented the scan of the 2nd frame. But as long as the "decice_started" flag in unixlib.c was not cleared, it was not possible to scan the next frame, so just removing that call is not sufficient. # New Approach An application can scan a whole image with DG_IMAGE/DAT_IMAGEMEMXFER/MSG_GET but then the application will not know the scan resolution. So it is usual to call DG_IMAGE/DAT_IMAGEINFO/MSG_GET to retrieve the scan resolution before the DAT_IMAGEMEMXFER. However the sane specification says that the obtained scan parameters "are guaranteed to be accurate between the time a scan has been started (`sane_start()` has been called) and the completion of that request. Outside of that window, the returned values are best-effort estimates of what the parameters will be when `sane_start()` gets invoked." So it is neccessary to call sane_start to make sure that the scan parameters are valid. https://sane-project.gitlab.io/standard/api.html#sane-get-parameters The TWAIN Spec says about DG_IMAGE / DAT_IMAGEINFO / MSG_GET: "Data Source writers are strongly encouraged to report back finished image values in State 6" The values that sane reports before calling sane_start can be completely wrong. One driver gave a 0-width estimate. So this code calls sane_start when the application does call one of the functions that require addition informations and then set the currentState from 6 to 7. With a state of 7, sane_start is not called again. # Terminating the Batch Batch scans are done when either: * The application negotiated a value \>0 for CAP_XFERCOUNT or * The sane-parameter "source" is set to ADF. The applcation calls DG_CONTROL/DAT_PENDINGXFERS/MSG_ENDXFER and the field pPendingXfers-\>Count determines if the application expects more frames. Without a batch scan, SANE_Cancel is called to make sure the process ends (else some backends could restart scanning the flatbed on and on). In batch scan the application counts the number of pages and stops when it is reached. Else it calls SANE_Start() without SANE_Cancel() to initiate scanning the next page. If this fails, DAT_PENDINGXFERS/MSG_ENDXFER returns pendingcount 0 to inform the application that there are no further pages. # Why buffered memory transfers failed oftenly 1. The scan parameters from SANE retrieved by the application in DG_IMAGE / DAT_IMAGEINFO / MSG_GET were wrong. For example the image width could be 0. 2. The YOffset parameter in cally to DG_IMAGE/DAT_IMAGEMEMXFER/MSG_GET was always set to 0. It is unclear if this violates the TWAIN specification, as this value is only required in tiled transfer mode. But it more robust to fill in that value, as does the gphoto2.ds and many other TWAIN drivers. # Tests performed As this change heavily changes the way the sane API is applied, the exact consequences are not easily predictable. So I tested both with different application programs and with different sane backends. ## Testapplication There are rather few application programs out there with the capability to do an ADF batch scan and buffered memory transfers. I'm attaching a minimalistic program with 600 lines of C-Code that can do batch scans and buffered memory transfers and save the results into .bmp files. I tested the 32-Bit testprogram to work correctly in Windows 11 with the official driver for the HP Officejet Pro 8600 N911a provided by HP. ## Tested applications * IrfanView 4.72 both 32-Bit and 64-Bit. 64-Bit needs twaindsm.dll from TWAIN .org to use 64-Bit sane.ds. Irfanview is one of the few easily available applications that can do ADF batch scans. * LibreOffice_6.2.8.2 64-Bit with twaindsm.dll from TWAIN .org to use 64-Bit sane.ds. Newer versions of Libreoffice 64-Bit are using a 32-Bit EXE to address 32-Bit TWAIN. 6.2.8 is the last version with native 64-Bit TWAIN based on twaindsm.dll. * LibreOffice_25.8.2_Win_x86.msi 32-Bit. * OpenOffice.org 3.3.0 32-Bit (May 2011). * Microsoft Word 97 32-Bit (Starts Microsoft Photo Editor for scanning). ## Tested Backends * HP Officejet Pro 8600 N911a using the hpaio backend. * Brother MFC-L9570CDW using the escl backend. * Brother MFC-L9570CDW using the brscan4 backend (Prprietary driver from brother). ## State of Tests Some application tests were not repeated with the very last changes in the code. I'd like to see if more changes are neccessary before a wine release before I repeat tests. [twain_memxfer.zip](/uploads/b0ce7dd6738e0921f1714c09207e3c73/twain_memxfer.zip) ``` Length Date Time Name --------- ---------- ----- ---- 17942 2025-11-05 11:10 memxfer.c 77104 2025-10-16 14:02 twain.h 302 2025-11-05 08:00 Makefile --------- ------- 95348 3 files ``` # Note on twaindsm.dll The twain data source manager is called twain_32.dll for 32-Bit Windows. However on windows there is not such module for 64-Bit environments. Instead the twain consortium offers twaindsm.dll (Both 32-Bit and 64-Bit). https://github.com/twain/twain-dsm It contains an extension in the interface allowing a DS to work with a DSM of any name by transfering the callback entry point. Some documentation on the reasons can be found here: https://github.com/twain/twain-dsm/blob/master/TWAIN_DSM/src/readme.doc even if the filenames documented in later documentations are different. When renaming the 64-Bit twain_32.dll from wine to twaindsm.dll, a problem occurs due to sane_main.c explicitly searching for twain_32: ``` static TW_UINT16 SANE_OpenDS( pTW_IDENTITY pOrigin, pTW_IDENTITY self) { if (SANE_dsmentry == NULL) { HMODULE moddsm = GetModuleHandleW(L"twain_32"); ``` And the current code (from me) that sends the entry points is called too late (After SANE_OpenDS) so runs into an error. I've got a patch for this. But essentially for 64-Bit TWAIN, the twain_32.dll should be renamed to twaindsm.dll as expected by Windows applications for 64-Bit TWAIN to work out of the box. I have no idea how to patch wine to create twain_32.dll for 32-Bit windows and twaindsm.dll for 64-Bit Windows. # -- v4: dlls/sane.ds: Read frame data until EOF in native transfer mode https://gitlab.winehq.org/wine/wine/-/merge_requests/9397

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[PATCH v3 0/6] MR9397: dlls/sane.ds: Support ADF-Scans and fix TWSX_MEMORY
by Bernd Herd (＠herdsoft) Nov. 14, 2025

Nov. 14, 2025

This merge request adds support to scan a batch of images from a scanner with Automatic Document Feeder (ADF) to the sane.ds. It also fixes problems with the buffered memory transfer mode TWSX_MEMORY, that are caused by related reasons. Before, activating the ADF only scanned the first image in the batch and then dischared the remaining images without scanning. # Why ADF scans failed Prior to this merge request, the sane.ds was based on the principle that for every successful call to sane_start there is exactly one call to sane_cancel. This was already established on the lowest level in unixlib.c: ``` static NTSTATUS start_device( void *args ) { SANE_Status status; - if (device_started) return STATUS_SUCCESS; status = sane_start( device_handle ); [...] static NTSTATUS cancel_device( void *args ) { if (device_started) sane_cancel( device_handle ); device_started = FALSE; return STATUS_SUCCESS; ``` However the sane API is designed so that for every image in a batch, sane_start must be called without a prior call to sane_cancel, as sane_cancel ends the whole batch. So for an ADF-Scan with 5 pages, sane_start is called 5 times and sane_cancel is to be called once. https://sane-project.gitlab.io/standard/api.html#code-flow So the call to ``` SANE_CALL( cancel_device, NULL ); ``` in SANE_ImageNativeXferGet prevented the scan of the 2nd frame. But as long as the "decice_started" flag in unixlib.c was not cleared, it was not possible to scan the next frame, so just removing that call is not sufficient. # New Approach An application can scan a whole image with DG_IMAGE/DAT_IMAGEMEMXFER/MSG_GET but then the application will not know the scan resolution. So it is usual to call DG_IMAGE/DAT_IMAGEINFO/MSG_GET to retrieve the scan resolution before the DAT_IMAGEMEMXFER. However the sane specification says that the obtained scan parameters "are guaranteed to be accurate between the time a scan has been started (`sane_start()` has been called) and the completion of that request. Outside of that window, the returned values are best-effort estimates of what the parameters will be when `sane_start()` gets invoked." So it is neccessary to call sane_start to make sure that the scan parameters are valid. https://sane-project.gitlab.io/standard/api.html#sane-get-parameters The TWAIN Spec says about DG_IMAGE / DAT_IMAGEINFO / MSG_GET: "Data Source writers are strongly encouraged to report back finished image values in State 6" The values that sane reports before calling sane_start can be completely wrong. One driver gave a 0-width estimate. So this code calls sane_start when the application does call one of the functions that require addition informations and then set the currentState from 6 to 7. With a state of 7, sane_start is not called again. # Terminating the Batch Batch scans are done when either: * The application negotiated a value \>0 for CAP_XFERCOUNT or * The sane-parameter "source" is set to ADF. The applcation calls DG_CONTROL/DAT_PENDINGXFERS/MSG_ENDXFER and the field pPendingXfers-\>Count determines if the application expects more frames. Without a batch scan, SANE_Cancel is called to make sure the process ends (else some backends could restart scanning the flatbed on and on). In batch scan the application counts the number of pages and stops when it is reached. Else it calls SANE_Start() without SANE_Cancel() to initiate scanning the next page. If this fails, DAT_PENDINGXFERS/MSG_ENDXFER returns pendingcount 0 to inform the application that there are no further pages. # Why buffered memory transfers failed oftenly 1. The scan parameters from SANE retrieved by the application in DG_IMAGE / DAT_IMAGEINFO / MSG_GET were wrong. For example the image width could be 0. 2. The YOffset parameter in cally to DG_IMAGE/DAT_IMAGEMEMXFER/MSG_GET was always set to 0. It is unclear if this violates the TWAIN specification, as this value is only required in tiled transfer mode. But it more robust to fill in that value, as does the gphoto2.ds and many other TWAIN drivers. # Tests performed As this change heavily changes the way the sane API is applied, the exact consequences are not easily predictable. So I tested both with different application programs and with different sane backends. ## Testapplication There are rather few application programs out there with the capability to do an ADF batch scan and buffered memory transfers. I'm attaching a minimalistic program with 600 lines of C-Code that can do batch scans and buffered memory transfers and save the results into .bmp files. I tested the 32-Bit testprogram to work correctly in Windows 11 with the official driver for the HP Officejet Pro 8600 N911a provided by HP. ## Tested applications * IrfanView 4.72 both 32-Bit and 64-Bit. 64-Bit needs twaindsm.dll from TWAIN .org to use 64-Bit sane.ds. Irfanview is one of the few easily available applications that can do ADF batch scans. * LibreOffice_6.2.8.2 64-Bit with twaindsm.dll from TWAIN .org to use 64-Bit sane.ds. Newer versions of Libreoffice 64-Bit are using a 32-Bit EXE to address 32-Bit TWAIN. 6.2.8 is the last version with native 64-Bit TWAIN based on twaindsm.dll. * LibreOffice_25.8.2_Win_x86.msi 32-Bit. * OpenOffice.org 3.3.0 32-Bit (May 2011). * Microsoft Word 97 32-Bit (Starts Microsoft Photo Editor for scanning). ## Tested Backends * HP Officejet Pro 8600 N911a using the hpaio backend. * Brother MFC-L9570CDW using the escl backend. * Brother MFC-L9570CDW using the brscan4 backend (Prprietary driver from brother). ## State of Tests Some application tests were not repeated with the very last changes in the code. I'd like to see if more changes are neccessary before a wine release before I repeat tests. [twain_memxfer.zip](/uploads/b0ce7dd6738e0921f1714c09207e3c73/twain_memxfer.zip) ``` Length Date Time Name --------- ---------- ----- ---- 17942 2025-11-05 11:10 memxfer.c 77104 2025-10-16 14:02 twain.h 302 2025-11-05 08:00 Makefile --------- ------- 95348 3 files ``` # Note on twaindsm.dll The twain data source manager is called twain_32.dll for 32-Bit Windows. However on windows there is not such module for 64-Bit environments. Instead the twain consortium offers twaindsm.dll (Both 32-Bit and 64-Bit). https://github.com/twain/twain-dsm It contains an extension in the interface allowing a DS to work with a DSM of any name by transfering the callback entry point. Some documentation on the reasons can be found here: https://github.com/twain/twain-dsm/blob/master/TWAIN_DSM/src/readme.doc even if the filenames documented in later documentations are different. When renaming the 64-Bit twain_32.dll from wine to twaindsm.dll, a problem occurs due to sane_main.c explicitly searching for twain_32: ``` static TW_UINT16 SANE_OpenDS( pTW_IDENTITY pOrigin, pTW_IDENTITY self) { if (SANE_dsmentry == NULL) { HMODULE moddsm = GetModuleHandleW(L"twain_32"); ``` And the current code (from me) that sends the entry points is called too late (After SANE_OpenDS) so runs into an error. I've got a patch for this. But essentially for 64-Bit TWAIN, the twain_32.dll should be renamed to twaindsm.dll as expected by Windows applications for 64-Bit TWAIN to work out of the box. I have no idea how to patch wine to create twain_32.dll for 32-Bit windows and twaindsm.dll for 64-Bit Windows. # -- v3: dlls/sane.ds: Read frame data until EOF in native transfer mode dlls/sane.ds: Implement DG_CONTROL/DAT_PENDINGXFERS/MSG_GET based on remainingImages counter dlls/sane.ds: Fill TW_IMAGEMEMXFER.YOffset in SANE_ImageMemXferGet dlls/sane.ds: Apply SANE_Start() and SANE_Cancel() dlls/sane.ds: Store CAP_XFERCOUNT to activeDS.capXferCount https://gitlab.winehq.org/wine/wine/-/merge_requests/9397

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[PATCH 0/5] MR9472: msado: Preparation for loading table data lazily.
by Piotr Caban (＠piotr) Nov. 14, 2025

Nov. 14, 2025

-- https://gitlab.winehq.org/wine/wine/-/merge_requests/9472

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[PATCH 0/2] MR9469: dwrite/fallback: Add a few more fallbacks
by Bernhard Kölbl Nov. 14, 2025

Nov. 14, 2025

-- https://gitlab.winehq.org/wine/wine/-/merge_requests/9469

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Re: [PATCH v2 0/2] MR9466: gitlab: Install some missing dependencies.
by Hans Leidekker (＠hans) Nov. 14, 2025

Nov. 14, 2025

On Fri Nov 14 14:38:51 2025 +0000, Giovanni Mascellani wrote: > [I triggered a CI pipeline with > tests](https://gitlab.winehq.org/giomasce/wine/-/pipelines/52738) and > AFAICT winscard tests were run without failures. Does that make sense > for you? There are some 64-bit failures in dinput, is there any chance > they're related? Is that a pure 32-bit build? That would explain it. The tests fail here on old wow64 on my machine. I don't think the dinput failures are related. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9466#note_122067

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[PATCH v2 0/9] MR9294: mf/tests: Fix test failures in Windows.
by Conor McCarthy (＠cmccarthy) Nov. 14, 2025

Nov. 14, 2025

The last commit in particular fixes the crashes in Windows. -- v2: mf/tests: Create all MF test objects on the heap. mf/tests: Set test media stream sample duration by default and update current time on seek. https://gitlab.winehq.org/wine/wine/-/merge_requests/9294

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Re: [PATCH v2 0/2] MR9466: gitlab: Install some missing dependencies.
by Giovanni Mascellani (＠giomasce) Nov. 14, 2025

Nov. 14, 2025

On Fri Nov 14 13:53:16 2025 +0000, Giovanni Mascellani wrote: > The image changes are not yet visible in the CI pipeline triggered by > this MR. The image is recreated only when the changes are pushed to > master. And in my test CI pipeline (with the updated image) I indeed > forgot to reenable tests. Let me try again, if that's indeed a problem > I'll discard this patch: the one I'm really interested into is the other > one, that was just because I had noticed something else was missing and > I thought it was not intentional. [I triggered a CI pipeline with tests](https://gitlab.winehq.org/giomasce/wine/-/pipelines/52738) and AFAICT winscard tests were run without failures. Does that make sense for you? There are some 64-bit failures in dinput, is there any chance they're related? -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9466#note_122064

1 0

[PATCH v3 0/6] MR9470: rometadata/tests: Add some tests for IMetaDataImport
by Vibhav Pant (＠vibhavp) Nov. 14, 2025

Nov. 14, 2025

-- v3: rometadata/tests: Add tests for IMetaDataImport::{EnumProperties, GetPropertyProps}. https://gitlab.winehq.org/wine/wine/-/merge_requests/9470

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[PATCH 0/1] MR9471: winevulkan: Avoid using nested quotes in make_vulkan format strings.
by Rémi Bernon Nov. 14, 2025

Nov. 14, 2025

Fixes: 4812732aa467f943c4fc4be8ed213a3ec2860c61 Some old(-ish) Python don't like them. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9471

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[PATCH v2 0/6] MR9470: rometadata/tests: Add some tests for IMetaDataImport
by Vibhav Pant (＠vibhavp) Nov. 14, 2025

Nov. 14, 2025

-- v2: rometadata: Add tests for IMetaDataImport::{EnumProperties, GetPropertyProps}. rometadata/tests: Add tests for IMetaDataImport::GetCustomAttributeByName. rometadata/tests: Add tests for IMetaDataImport::{EnumFields, GetFieldProps}. rometadata/tests: Add tests for IMetaDataImport::{EnumMethods, GetMethodProps, GetNativeCallConvFromSig}. rometadata/tests: Add tests for IMetaDataTables::{EnumTypeDefs, GetTypeDefProps, FindTypeDefByName}. https://gitlab.winehq.org/wine/wine/-/merge_requests/9470

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Re: [PATCH v2 0/2] MR9466: gitlab: Install some missing dependencies.
by Giovanni Mascellani (＠giomasce) Nov. 14, 2025

Nov. 14, 2025

On Fri Nov 14 13:40:48 2025 +0000, Hans Leidekker wrote: > We left this one out because we don't support the old wow64 > configuration, which makes the tests fail. Looks like the 32-bit > winscard tests were skipped for this MR, not sure why. The image changes are not yet visible in the CI pipeline triggered by this MR. The image is recreated only when the changes are pushed to master. And in my test CI pipeline (with the updated image) I indeed forgot to reenable tests. Let me try again, if that's indeed a problem I'll discard this patch: the one I'm really interested into is the other one, that was just because I had noticed something else was missing and I thought it was not intentional. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9466#note_122049

1 0

Re: [PATCH v2 0/2] MR9466: gitlab: Install some missing dependencies.
by Hans Leidekker (＠hans) Nov. 14, 2025

Nov. 14, 2025

Hans Leidekker (@hans) commented about tools/gitlab/image.docker: > libkrb5-dev:i386 \ > liborc-0.4-dev:i386 \ > libpcap-dev:i386 \ > + libpcsclite-dev:i386 \ We left this one out because we don't support the old wow64 configuration, which makes the tests fail. Looks like the 32-bit winscard tests were skipped for this MR, not sure why. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9466#note_122048

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[PATCH 0/6] MR9468: mmdevapi: Various
by Matteo Bruni (＠Mystral) Nov. 14, 2025

Nov. 14, 2025

The mmdevapi side of !9438 -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9468

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[PATCH v5 0/1] MR9465: vccorlib140: Fix potential memory leak in allocation functions.
by Vibhav Pant (＠vibhavp) Nov. 14, 2025

Nov. 14, 2025

`AllocateWithWeakRef` and `AllocateExceptionWithRef` leak the `weakref` allocation if the second allocation throws. -- v5: vccorlib140: Fix potential memory leak in allocation functions. https://gitlab.winehq.org/wine/wine/-/merge_requests/9465

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[PATCH v3 0/3] MR9415: mmdevapi: Move format validation in driver-independent code.
by Giovanni Mascellani (＠giomasce) Nov. 14, 2025

Nov. 14, 2025

-- v3: mmdevapi: Move generating the suggested format in the driver-independent code. mmdevapi: Move format validation in driver-independent code. https://gitlab.winehq.org/wine/wine/-/merge_requests/9415

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[PATCH 0/1] MR9467: dwrite/fallback: Add the Bamum Supplement range to the fallback data.
by Nikolay Sivov (＠nsivov) Nov. 14, 2025

Nov. 14, 2025

Signed-off-by: Nikolay Sivov <nsivov(a)codeweavers.com> -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9467

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Re: [PATCH 0/2] MR9466: gitlab: Install some missing dependencies.
by Giovanni Mascellani (＠giomasce) Nov. 14, 2025

Nov. 14, 2025

An example run in my fork is https://gitlab.winehq.org/giomasce/wine/-/pipelines/52719. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9466#note_122037

1 0

[PATCH v3 0/1] MR9465: vccorlib140: Fix potential memory leak in allocation functions.
by Vibhav Pant (＠vibhavp) Nov. 14, 2025

Nov. 14, 2025

`AllocateWithWeakRef` and `AllocateExceptionWithRef` leak the `weakref` allocation if the second allocation throws. -- v3: vccorlib140: Fix potential memory leak in allocation functions. https://gitlab.winehq.org/wine/wine/-/merge_requests/9465

3 3

[PATCH 0/1] MR9464: opengl32: Add support for GL_NV_ES1_1_compatibility.
by Jacek Caban (＠jacek) Nov. 14, 2025

Nov. 14, 2025

-- https://gitlab.winehq.org/wine/wine/-/merge_requests/9464

3 2

[PATCH 0/1] MR9463: opengl32: Don't use PTR32 for manual wow64 wrappers return type.
by Jacek Caban (＠jacek) Nov. 14, 2025

Nov. 14, 2025

-- https://gitlab.winehq.org/wine/wine/-/merge_requests/9463

3 2

[PATCH 0/1] MR9462: opengl32: Use Vulkan-backed buffer storage only when GL_MAP_PERSISTENT_BIT is specified.
by Jacek Caban (＠jacek) Nov. 14, 2025

Nov. 14, 2025

Non-persistent mappings have additional synchronization guarantees on map that are hard to emulate with Vulkan. Fall back to the memcpy code path instead. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9462

3 2

[PATCH v2 0/2] MR6151: mshtml: window.performance improvements.
by Gabriel Ivăncescu Nov. 14, 2025

Nov. 14, 2025

-- v2: mshtml: Implement performance.now(). mshtml: Use double for get_time_stamp to have sub-millisecond precision. https://gitlab.winehq.org/wine/wine/-/merge_requests/6151

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[PATCH 0/1] MR9465: vccorlib140: Fix potential memory leak in allocation functions.
by Vibhav Pant (＠vibhavp) Nov. 14, 2025

Nov. 14, 2025

`AllocateWithWeakRef` and `AllocateExceptionWithRef` leak the `weakref` allocation if the second allocation throws. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9465

2 1

Re: [PATCH v4 0/1] MR9423: ntdll: Warn when environment block is too large, instead of removing it
by Alexandre Julliard (＠julliard) Nov. 14, 2025

Nov. 14, 2025

OK, I suspect we'll be better off ignoring most of them, but we can do that later. Thanks for your feedback! -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9423#note_122014

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Re: [PATCH v4 0/1] MR9423: ntdll: Warn when environment block is too large, instead of removing it
by Martino Fontana (＠tinozzo123) Nov. 14, 2025

Nov. 14, 2025

I see envars like `SDL_ASSERT` or `SDL_LOGGING`, something not unreasonable to be set on the Unix side but meant for the Windows app. So, better not to add it to the deny list. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9423#note_122013

1 0