[Bug 7810] New: "err:x11drv:X11DRV_CreateBitmap Trying to make
bitmap with planes=1, bpp=32" with a 24bit visual
Wine Bugs
wine-bugs at winehq.org
Tue Mar 20 19:39:26 CDT 2007
http://bugs.winehq.org/show_bug.cgi?id=7810
Summary: "err:x11drv:X11DRV_CreateBitmap Trying to make bitmap
with planes=1, bpp=32" with a 24bit visual
Product: Wine
Version: 0.9.31.
Platform: PC
OS/Version: Linux
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: wine-x11driver
AssignedTo: wine-bugs at winehq.org
ReportedBy: giuseppe.bilotta at gmail.com
When running The Bat version 3.x I get a long string of errors
err:x11drv:X11DRV_CreateBitmap Trying to make bitmap with planes=1, bpp=32
I'm running the stock Debian X.org 7.1.0-15 with the open source nVidia driver
(nv) and the screen depth is 24 bit.
It is my understanding that the error line comes from line 124 of bitmap.c
http://source.winehq.org/source/dlls/winex11.drv/bitmap.c?v=wine-0.9.31#L124
and that the reason for the early warning is to prevent the call to
XCreatePixmap (on line 143 of the same file) from failing due to depth mismatch.
However, screen_depth and allowed pixmap depths are not always the same, as
shown by a call to xdpyinfo on my system:
number of supported pixmap formats: 7
supported pixmap formats:
depth 1, bits_per_pixel 1, scanline_pad 32
depth 4, bits_per_pixel 8, scanline_pad 32
depth 8, bits_per_pixel 8, scanline_pad 32
depth 15, bits_per_pixel 16, scanline_pad 32
depth 16, bits_per_pixel 16, scanline_pad 32
depth 24, bits_per_pixel 32, scanline_pad 32
depth 32, bits_per_pixel 32, scanline_pad 32
Given that the relevant code hasn't changed in 0.9.33, I think the code is
still valid.
The solution is probably to skip the explicit test for the bitmap depth on line
124 and rather check if XCreatePixmap generates some error after line 143. As
an alternative, the bitmap depth should be checked against all the pixmap depth
supported by the visual rather than just the monochrome and visual depth. But I
think the 'check after XCreatePixmap' solution is better.
I'm sorry I've never done any Xlib programming ever, or I'd try and provide a
patch myself.
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