New subject: [Bug 51285] The bmpcoreimage test in user32:cursoricon fails on most Windows versions

18 Jun 2021


      https://bugs.winehq.org/show_bug.cgi?id=51285
Bug ID: 51285
           Summary: The bmpcoreimage test in user32:cursoricon fails on
                    most Windows versions
           Product: Wine
           Version: 6.10
          Hardware: x86-64
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: user32
          Assignee: wine-bugs@winehq.org
          Reporter: fgouget@codeweavers.com
The bmpcoreimage test in user32:cursoricon fails on most Windows versions.
The failure is either:
cursoricon.c:1217: Test failed: BMP (coreinfo): IMAGE_BITMAP failed.
or cursoricon.c:1162: Test failed: BMP (coreinfo): Pixel is 0x00000000
https://test.winehq.org/data/patterns.html#user32:cursoricon
A given Windows version can have different results.
The result seems to depend on the user32.dll version, as if Microsoft issued a
security fix that changed the handling of this bitmap and progressively
converged on the "Pixel is 0" result. Here's the detailed result per platform
and user32 version:
vista      6.0.6002.18005   ok
vistau64   6.0.6002.18005   ok
w2008      6.0.6002.19714   ok
w7pro64    6.1.7601.23594   ok
w7u        6.1.7601.24546   Pixel is 0x00000000
w8         6.3.9600.17031   ok
w864       6.3.9600.17031   ok
w8.gtx     6.3.9600.17415   ok
w8.rx      6.3.9600.19920   Pixel is 0x00000000
w1507      10.0.10240.16384 ok
w1507.gtx  10.0.10240.16384 ok
w1507.rx   10.0.10240.16384 ok
w1607      10.0.14393.0     ok
w1709.rx   10.0.16299.15    ok
w1709      10.0.16299.125   ok
w1709.gtx  10.0.16299.125   ok
w1809.gtx  10.0.17763.168   ok
w1809.rx   10.0.17763.168   ok
w1809      10.0.17763.1339  IMAGE_BITMAP failed
w1909.gtx  10.0.18362.719   IMAGE_BITMAP failed
w1909.rx   10.0.18362.719   IMAGE_BITMAP failed
w1909      10.0.18362.1110  Pixel is 0x00000000
w2004      10.0.19041.388   IMAGE_BITMAP failed
w2009.fg   10.0.19041.610   Pixel is 0x00000000
w2009      10.0.19041.685   Pixel is 0x00000000
w2009.gtx  10.0.19041.906   Pixel is 0x00000000
w2009.rx   10.0.19041.906   Pixel is 0x00000000
Note that w1507, w1607 and w1709 may be missing updates (but installing them
without upgrading to the next Windows version would be hard), which may be why
they don't fail.
So either this test should be removed, or it should be changed to expect 'pixel
== 0' and allow for broken results (which does not fit with the way
test_LoadImageFile() is currently implemented).
We may also want to update Wine's BITMAP_Load() implementation to match the
current Windows behavior.
For reference this test bitmap was introduced in the commit below:
commit 0dfedd50c38356c8049aef48e69b630204de0f79
Author:     Wolfram Sang wolfram@the-dreams.de
AuthorDate: Sat Jun 5 05:57:19 2010 +0200
user32: No sanity checks for BITMAPCOREINFO in BITMAP_Load.
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[Bug 51285] New: The bmpcoreimage test in user32:cursoricon fails on most Windows versions