OpenVG- baremetal VG

Anything and everything about programming graphics with Ultibo
Gavinmc42
Posts: 1509
Joined: Sun Jun 05, 2016 12:38 pm
Location: Brisbane, Australia

Re: OpenVG- baremetal VG

Postby Gavinmc42 » Mon Mar 04, 2019 1:52 am

I need to get a bunch more SLC SD cards, these MLC bigger ones are rubbish.
It is the main reason I use Zero's for VC4 graphic coding but for the clock I needed real time from the network which meant using at least a B+ or in this case old 3B.

This 16GB card had two partitions, Fat and Ext4 as it was an old Raspbian card, not sure if that was part of the problem?
I will reformat as Fat32 and see it that fixes this issue. I suspect it was stuck in a loop trying to read the card?

The Ultiboinstaller.sh worked fine on a Pi3B+ apart from needing an extra rebuild to get the message window visible.
Last edited by Gavinmc42 on Sun Mar 10, 2019 1:38 am, edited 1 time in total.
Gavinmc42
Posts: 1509
Joined: Sun Jun 05, 2016 12:38 pm
Location: Brisbane, Australia

Re: OpenVG- baremetal VG

Postby Gavinmc42 » Sun Mar 10, 2019 1:38 am

Ran the Installer script in Rasbian, got latest Ultibo version and finally saw that 3A+ option in new projects ;)

Everything now working in Raspbian and even got AJStarks Go OpenVG examples working :D
He has more examples than just the two included in Ultibo.
Never noticed that clock demo before :o
Nice gradient demo, good for The Orville displays.

How well does Go convert to Ultibo? Probably better than C or C++.
Laz/FPC should also be able to use OpenVG on Raspbian?

It can be quite slow to do the code, compile, write SD, test cycle.
Getting VG code working on Raspbian first is making more sense to me now.
Should have done this a year ago :oops:

Should be easy enough to make a Go version of my SteamPunk OS screen?
Better if it was a Laz/Free Pascal version, google time.

EDIT https://www.raspberrypi.org/forums/view ... hp?t=40548
Gavinmc42
Posts: 1509
Joined: Sun Jun 05, 2016 12:38 pm
Location: Brisbane, Australia

Re: OpenVG- baremetal VG

Postby Gavinmc42 » Wed Mar 13, 2019 11:56 am

Should be easy enough to make a Go version of my SteamPunk OS screen?

It was very easy to port to Go on Raspbian, not so easy to just copy that port to PiCore, dependency hell as per normal for Linux ;)
Need to try Gentoo64 next, that's should break it?

The more I use Ultibo the easy it is compared to Linux.
I really need to get serious about coding and proper coding theory and practice.
But first a decent keyboard, one for everyone in the family?

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