[2474] in Athena Bugs
problem with xsetroot
daemon@ATHENA.MIT.EDU (tuna@ATHENA.MIT.EDU)
Tue Jun 27 07:17:02 1989
From: <tuna@ATHENA.MIT.EDU>
Date: Tue, 27 Jun 89 07:16:43 EDT
To: bugs@ATHENA.MIT.EDU
consider the following two bitmaps:
#define 32x32_width 32
#define 32x32_height 32
static char 32x32_bits[] = {
0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xcc,
0xcc, 0xcc, 0xcc, 0xcc, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33,
0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x33, 0x33, 0x33, 0x33,
0x33, 0x33, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc,
0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xcc,
0xcc, 0xcc, 0xcc, 0xcc, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33,
0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x33, 0x33, 0x33, 0x33,
0x33, 0x33, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc,
0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xcc,
0xcc, 0xcc, 0xcc, 0xcc, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33,
0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc};
#define 32x48_width 32
#define 32x48_height 48
static char 32x48_bits[] = {
0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xcc,
0xcc, 0xcc, 0xcc, 0xcc, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33,
0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x33, 0x33, 0x33, 0x33,
0x33, 0x33, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc,
0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xcc,
0xcc, 0xcc, 0xcc, 0xcc, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33,
0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x33, 0x33, 0x33, 0x33,
0x33, 0x33, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc,
0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xcc,
0xcc, 0xcc, 0xcc, 0xcc, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33,
0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x33, 0x33, 0x33, 0x33,
0x33, 0x33, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc,
0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xcc,
0xcc, 0xcc, 0xcc, 0xcc, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33,
0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x33, 0x33, 0x33, 0x33,
0x33, 0x33, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc};
when using these as background (root) bitmaps (via xsetroot -bitmap
...), i encountered a curious thing. the first bitmap works fine as
the root pattern (no observed problems). however, when i use the
second bitmap (32x48) as the root pattern, things get a bit messy on
mono RTs; the root pattern gets kinda messed up. (try it yourself;
install 32x48 as your root pattern and then try an xrefresh,
iconifying a few windows, etc.)
i am tempted to believe that this is related to the non-power-of-2
dimension used in the second bitmap, but you'd have to do further
testing to make sure of that.
i've used the same bitmap as my root pattern on a megapel RT without
any trouble.
thanks
kirk
