[PATCH 3/6] winex11.drv: Allow setting a 0bit color depth display mode.

[Zhiyi Zhang]

Windows 8.1 and older allow setting a display mode with 0bit color depth.

Fix a regression from 981fb4edb371dd2ccf57dd350e76451df50c0a98.

Signed-off-by: Zhiyi Zhang 
---
This is already tested in user32/tests/monitor.c#test_ChangeDisplaySettingsEx() vid_modes_test[3].
But the test is marked as not must succeed because different Windows versions may return different results.
So the TestBots didn't catch this one.

dlls/winex11.drv/settings.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/dlls/winex11.drv/settings.c b/dlls/winex11.drv/settings.c
index 7827ede6560..902f1ec15d9 100644
--- a/dlls/winex11.drv/settings.c
+++ b/dlls/winex11.drv/settings.c
@@ -473,7 +473,9 @@ static DEVMODEW *get_full_mode(ULONG_PTR id, DEVMODEW *dev_mode)
     {
         found_mode = (DEVMODEW *)((BYTE *)modes + (sizeof(*modes) + modes[0].dmDriverExtra) * mode_idx);

-        if (dev_mode->dmFields & DM_BITSPERPEL && found_mode->dmBitsPerPel != dev_mode->dmBitsPerPel)
+        if (dev_mode->dmFields & DM_BITSPERPEL &&
+            dev_mode->dmBitsPerPel &&
+            found_mode->dmBitsPerPel != dev_mode->dmBitsPerPel)
             continue;
         if (dev_mode->dmFields & DM_PELSWIDTH && found_mode->dmPelsWidth != dev_mode->dmPelsWidth)
             continue;