Search found 887 matches

by pik33
Tue Aug 20, 2019 5:50 pm
Forum: Graphics
Topic: OpenGL
Replies: 25
Views: 2995

Re: OpenGL

With, or without X, is only an initialization stuff. The rest is the same. So there may be easier to program and debug GL stuff using Lazarus under X. You have an OpenGL control there, so... no init (near) at all, no egl, glx, glut, the component does it for you. Put it on the form and play. Then al...
by pik33
Mon Aug 19, 2019 6:23 pm
Forum: Graphics
Topic: OpenGL
Replies: 25
Views: 2995

Re: OpenGL

The most important thing now... is... to have a base: a Ultibo running on Ri4 with a simple framebuffer We don't need to have X here: mesa can output to GBM framebuffer without X The GBM framebuffer is, in reality, some RAM. We have to (1) know how to recompile mesa for Ultibo (2) know how to tell m...
by pik33
Sun Aug 11, 2019 6:46 am
Forum: General
Topic: Bit-banged 8-port RS-232 communication library
Replies: 20
Views: 1031

Re: Bit-banged 8-port RS-232 communication library

The problem is: Ultibo is a multitasking preemptive environment. There are a lot of things running in the background. As there is no 'impossible" things here, I think it is still doable, but you have to take care of these threads/scheduler/interrupts things which may be not an easy task. Having...
by pik33
Wed Aug 07, 2019 6:35 pm
Forum: Graphics
Topic: Ultibo game programming
Replies: 75
Views: 11882

Re: Ultibo game programming

The best way...

Create a topic here. The best place seems to be General/Discussion. Call it "My RPi/Ultibo related thoughts, findings and questions" Or something like this. Post them all there as they come. They will be all in one place. Easier to search :)
by pik33
Wed Aug 07, 2019 4:50 am
Forum: News
Topic: There is a RPi4 on the wild
Replies: 25
Views: 2265

Re: There is a RPi4 on the wild

How to do SonicPi in baremetal? Not exactly Sonic Pi but this is my old project https://sourceforge.net/projects/pc-softsynth/files/Raspberry%20Pi/ I have to clean the mess in it. As it is now you have to download 0.06 for PC, then 0.08 for RPi - 0.06 archive contains samples and adsrs needed for i...
by pik33
Sat Aug 03, 2019 7:28 am
Forum: News
Topic: There is a RPi4 on the wild
Replies: 25
Views: 2265

Re: There is a RPi4 on the wild

I know what to do with 4GB using RPi4 and Ultibo: a fm/sampler hybrid synthesizer. I have the alpha code running on PC, written, of course, using Lazarus. The RPi3 is simply too slow to do this kind of hybrid synthesis in pure Pascal code: asm is needed and I expect no more than 8 voices of polyphon...
by pik33
Tue Jul 23, 2019 5:30 pm
Forum: News
Topic: There is a RPi4 on the wild
Replies: 25
Views: 2265

Re: There is a RPi4 on the wild

Mesa has to be recompiled for Ultibo and then headers has to be written in Pascal. A HUGE task.
by pik33
Sun Jul 21, 2019 7:25 pm
Forum: Graphics
Topic: OpenGL
Replies: 25
Views: 2995

Re: OpenGL

I will try again tomorrow using your instructions and maybe a SSD - no success yet

Now I know what the name means. You have to be an artist to build this. :)
by pik33
Sat Jul 20, 2019 7:38 pm
Forum: Graphics
Topic: OpenGL
Replies: 25
Views: 2995

Re: OpenGL

After a long time torturing my RPi to built this BForartist, I ended with this when I tried to start it:
A graphics card and driver with support for OpenGL 3.3 or higher is required.

How did you run this on RPi?
by pik33
Sat Jul 13, 2019 3:14 pm
Forum: Projects
Topic: Window manager
Replies: 146
Views: 21669

Re: Window manager

I managed to run a simplest (?) OpenGL ES without X on RPi4. // gcc -o drm-gbm drm-gbm-mod.c -ldrm -lgbm -lEGL -lGL -I/usr/include/libdrm //---------------------------------------------------------------------- //-------- Trying to get OpenGL ES screen on RPi4 without X //-------- based on drm-gbm h...

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