On 9/27/18 1:53 AM, Kim Hartman wrote:
I am investigating how to bring Qt to our INtime RTOS. The INtime Distributed
RTOS runs on standard PC hardware as a multicore AMP OS (no SMP and not POSIX
compliant). Currently the RTOS has only a text console output based on INT10
services. The RTOS is fully preemptive, with strict priority based scheduling,
managed process services with rich IPC services. The development environment is
tightly coupled with MS VC (2008 and on) with ANSI C and C++11 language
support. The RTOS is very stable and been commercially deployed for decades. It
lacks a means for graphical programming, mostly for industrial controls
application. What is the means to port Qt to this RTOS? We're not intending on
building out OpenGL ES 2.0 unless absolutely necessary. I've read some
marketing materials about Qt on MCU, however the details seem very thin. It's
not Windows, Linux, OSX, Android, QNX, Integrity, or VxWorks... how to go about
getting this done?
The short answer is that you shouldn't.
The AGILE processes behind Qt development means that a lot of shortcuts
get taken and are allowed as long as the test-nothing automated test
clears Jenkins. You should read up on the many discussions (one even
within the past week) about critical bugs which rot until they are
closed in typical OpenSource manner.
http://www.logikalsolutions.com/wordpress/information-technology/how-canonical-fixes-most-major-ubuntu-bugs/
http://www.logikalsolutions.com/wordpress/information-technology/2411/
You should instead look into OpenZinc.
http://openzinc.org/
This is a lightweight set of C++ wrapper classes for GUI. It was a
commercial product back in the days of DOS, OS/2, Win 3.x and some MAC
OS which no longer exists. WindRiver consumed the product to make it the
standard GUI library for their RTOS. I stopped following it after that.
Now it appears to be both a spun-off OpenSource and an independent
commercial cross platform product again.
They didn't release the 5.x stuff, but you can start with 4.2 and see
how things go.
http://openzinc.org/Downloads.html
Odd that they support gcc on linux and OpenWatcom on all other
platforms. I only find that odd because OpenWatcom (well, commercial
Watcom) had an IDE which wasn't bad. Talk was that was to be ported to
Zinc. Be nice if it was one package again.
At any rate Qt isn't going to be RTOS friendly. At least not as RTOS
friendly as something which is just a wrapper around services already
provided by the RTOS.
Qt is an incredibly heavy massive footprint. It gets heavier and more
massive every day. You won't be porting "just a GUI." CAN-BUS, Serial
I/O, SQL database, timers, yet another thread class, the absolutely
worthless QML (which pretty much means you will need to port JavaScript
as well.) Ah yes! In order to claim you have "ported Qt" you will also
need to port WebEngine and all of the other Web stuff.
For the Journey you're on little Hobbit, I humbly recommend you try
OpenZinc first.
If that just doesn't work for some reason, see if you can find C-Scape.
It didn't do a lot and was mostly only for DOS so should be easy to port.
http://www.drdobbs.com/c-scape-and-look-feel/184402269
There also seems to be some commercial thing with a similar name.
https://www.omega.com/manuals/manualpdf/M_CSCAPE_PROGRAM.pdf
If you really want to make me smile, find a copy of Greenleaf Data
Windows. I loved the Greenleaf products back in the DOS days.
http://www.edm2.com/index.php/Greenleaf_Data_Windows
http://www.logikalsolutions.com/wordpress/information-technology/how-far-weve-come-pt-1/
http://www.logikalsolutions.com/wordpress/information-technology/expires-faster-than-milk/
KEWL!!
This place may have some!
http://emsps.com/oldtools/misc-g.htm
I'm pretty certain I've thrown out all my 5 1/4 floppies and a goodly
number of 3.5" as well. Data Windows came with full source and was DOS
INT based for mouse. This would be text based graphics so it would have
a 1980s GUI look which is not all bad, especially for industrial
control. You would have to hack your own touch screen pinch zoom support
if you wanted it.
Btw, this product's non-existence is a DIRECT RESULT of Janet Reno (at
the behest of the Clintons) committing treason against the human race.
Greenleaf Data Windows existed long before Microsoft started committing
wire and mail fraud with wanton abandon calling Windows an operating
system. As a result of Janet Reno not putting Bill Gates in prison and
even granting him/Microsoft domain over everything called Window or
Windows, little bitty Greenleaf got weekly threatening letters from
criminal attorneys at Microsoft and after about a year they discontinued
the product.
I have seen Greenleaf Data Windows pop up on various Abandonware sites.
If you cannot find the source for Data Windows via safe legitimate means
on your own you can try back channeling through Mark Nelson.
https://marknelson.us/posts/2006/08/25/don-killen-rip.html
If he doesn't have it he might be able to put you in touch with one of
the other developers (Ruby, Danny?) or the last people to legally own
Data Windows.
I'm spending so much time on Data Windows because you were mentioning
INT10 and a DOS only GUI library would be your best bet. You will have
the advantage of having only one memory model (vs. Compact, Small,
Medium and Large before we even got into DOS extenders and overlay linkers).
--
Roland Hughes, President
Logikal Solutions
(630) 205-1593
http://www.theminimumyouneedtoknow.com
http://www.infiniteexposure.net
http://www.johnsmith-book.com
http://www.logikalblog.com
http://www.interestingauthors.com/blog
http://lesedi.us
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