[Bug 12730] gdi32: some tests fail when X is run in 16 bit mode, but not 32 bit

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=12730





--- Comment #7 from Jörg Höhle <hoehle at users.sourceforge.net>  2009-03-11 08:18:44 ---
Created an attachment (id=19881)
 --> (http://bugs.winehq.org/attachment.cgi?id=19881)
excerpts from winetest version 1.1.15 logfiles in 16 vs. 32bpp

Attached is a summary of differences between running winetest in 32bpp and
16bpp modes on the same machine.

Tests from build 8e39646ac4d256b813ff69a23ba0c62ab4f08d33 (wine-1.1.15)

Differences are in:
- visual.c  - 3 different files?! (one per directx dir?)
- bitmap.c  - GetDIBits; also performs significantly less tests
- palette.c - getColor
- input.c
- msg.c
- win.c  - GetForegroundWindow

o In 16bpp the three visual.c tests are mostly skipped, although the summary
doesn't say so:
visual.c:1306: Sanity check returned an incorrect color(00000000), can't assure
the correctness of the tests, skipping
visual: 3 tests executed (0 marked as todo, 0 failures), 0 skipped.
(Likewise on http://test.winehq.org, some entries are green because almost no
test was performed).
In 32bpp, plenty of tests would be executed in visual.c.

o Some differences in the number of tests executed are not understandable, as
there's no mention of skipping anything nor any difference in the log file,
e.g.:
sock: 13181 tests executed (5 marked as todo, 0 failures), 0 skipped.
vs 32bpp:
sock: 13899 tests executed (5 marked as todo, 0 failures), 0 skipped.

o Noteworthy are tests where there are more errors (or only errors) in 32bpp:
- editor.c:4590: Test failed: test paste: strcmp = 1, text='testing paste
Ts'
- menu.c:1826: Test failed: test 0, 2, 4, 6, 8, 10, 12, 14, 16
- msg.c: sequence; testing xyz press/release

Finally, msg.c performed more tests and better results in 16bpp!
msg: 13057 tests executed (52 marked as todo, 24 failures), 2 skipped.
vs. with 16bpp:
msg: 14296 tests executed (52 marked as todo, 2 failures), 2 skipped.
Perhaps msg.c was written in 16bpp times?


In 1.1.15, "Meine Traumburg" still exhibits the 16bpp bug I mentioned in
comment #3.
(I promised to open a distinct issue should 16bpp tests become as successful as
32bpp while this bug persists)


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