Hi Wolf,
is it supposed to work in Qemu? I tried it, both ia32 and amd64, with the
same result. When the system is booting up, the GUI does not start.
Compositor prints these messages:
compositor: HelenOS Compositor server
compositor: Unable to set mode (Not enough memory)
compositor: Failed to get viewports.
Best regards,
Jiri
---------- Původní zpráva ----------
Od: Wolf Ramovsky <[email protected]>
"Hello
I've just commited code which allows you:
1. to ask compostior about known viewports
2. enumerate modes for viewport
3. set mode for viewport
Tested:
- amd64 build;
- execution in qemu
- execution in vbox
A few details about implementation:
1. Compositor name (e.g. ":0" in comp/ directory) its controlling interface
now.
2. In vesafb driver, I had to move initialization to thread and
return from stub_init() ASAP because if compositor starts earlier than
driver finishes initialization, devman reports vesafb/vsl0 as
misfunctional.
3. In vesafb driver, there is a all-zeros mode in the end of modes
list. It terminates modes list. It's a workaround for problem that
visualizer hangups if one try to get mode with number out of list
range. If you get all-zeros mode, you'd better stop enumerating or
visualizer session will hangup. See one of my recent e-mails.
How to:
Utility is named "compctl".
The first parameter should be a compositor name, in form it registered
to location server, "comp/:0" at this time.
Then you can either list viewports using "l[ist] <vp|viewports>"
arguments or select viewport by id (as it listed by listing viewport
command), using "<vp|viewport> {numeric id}" to perform
viewport-specific operations.
If you selected viewport you can either list its modes using "l[ist]
m[odes]" or set mode using "set {mode number}" arguments. Use mode
numbers from viewports list.
Examples:
# compctl comp/:0 l vp
will list viewports
# compctl comp/:0 vp {id from above list} l m
will list viewport modes
# compctl comp/:0 vp {id} set 0x112
will set mode 0x112
CAUTION!
Don't try to set mode not listed in viewport modes list or compositor
will freeze due do visualizer hangup. I've made workaround for similar
issue, see point 3 of impelementation details. Of course, I'll make
workaround for this issue too, but now: just don't try.
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