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by Gavinmc42
Sun Jan 13, 2019 12:03 pm
Forum: Feature requests
Topic: RISC-V
Replies: 0
Views: 60

RISC-V

While trying to manually install FPC 3.3.1 and Lazarus 2.1 on my Gentoo64 Pi I noticed riscv, riscv32, riscv64 compiler src code. Days before I had installed all the RISC-V tools on Gentoo64, 13 hour build in gcc and folder size of 12.7GB. No idea how to make fpc cross compilers on Aarch64 yet but I...
by Gavinmc42
Fri Jan 11, 2019 3:17 am
Forum: Graphics
Topic: WebGL
Replies: 3
Views: 231

Re: WebGL

I ran into an article about baremetal containers. Turns out baremetal is referring to applications running on the baremetal and not in a container with the OS like most VM/Docker stuff does. One thing I use Pi's for is data visualization of logged data. I don't have OpenGLES 3D visualization yet but...
by Gavinmc42
Thu Jan 10, 2019 12:04 pm
Forum: Discussion
Topic: Tricks and hints
Replies: 10
Views: 283

Re: Tricks and hints

GLSL/ESSL, thanks, saves me wasting too much time learning the wrong bits of GLSL. I need a list of OpenGL similar commands that are in OpenGLES and now GLSL to ESSL. WebGL uses OpenGLES and ESSL This looks useful info. http://www.pp4s.co.uk/main/tu-sms-graphics-3d.html Wow wonder if that demo can b...
by Gavinmc42
Thu Jan 10, 2019 1:47 am
Forum: Discussion
Topic: Building from source in OSX
Replies: 14
Views: 261

Re: Building from source in OSX

I normally use USB boot mode on Zero's.
Saves SD card wear and is a bit quicker.

Not sure if the Zero identifies as a 500ma USB device?
It would need to if a LCD with backlight is also running from the USB port.
Now you got me interested I will have to try this ;)
by Gavinmc42
Wed Jan 09, 2019 10:49 am
Forum: Discussion
Topic: Building from source in OSX
Replies: 14
Views: 261

Re: Building from source in OSX

Hard to keep up fpc, 3.3.1-r20 is also working in Aarch64.
Not sure if 3.2/3.3 will break Ultibo anyway, so no hurry, still trying to get Laz 2.0? going.
by Gavinmc42
Wed Jan 09, 2019 10:43 am
Forum: Discussion
Topic: Building from source in OSX
Replies: 14
Views: 261

Re: Building from source in OSX

The thing that stands out is that it is looking for ppcarm but the cross compiler should normally be called ppcrossarm instead. My Gentoo64 3.2.0-Beta fpc is called ppca64, that will only compile for Aarch64. So for Ultibo I will need a ppcarm version that runs on Aarch64? Would that be called cros...
by Gavinmc42
Mon Jan 07, 2019 6:00 am
Forum: Projects
Topic: fpga for ultitb
Replies: 42
Views: 4831

Re: fpga for ultitb

Turns out FPGA's can be low power too, must have been a long time since I checked. This one looks interesting, apparently 5.3K LUTs is enough for a RISC-V micro too. http://www.latticesemi.com/en/Products/DevelopmentBoardsAndKits/HimaxHM01B0 It can do vision recog :o This FPGA is the UP5K used on th...
by Gavinmc42
Sun Jan 06, 2019 9:12 am
Forum: Discussion
Topic: Windows in OpenGL ES or OpenGL ES in window?
Replies: 11
Views: 290

Re: Windows in OpenGL ES or OpenGL ES in window?

Wonder which is faster,? Accelerated jpeg or ETC1 for throwing up images.
Slideshow type application?, Game UIs?
by Gavinmc42
Sun Jan 06, 2019 1:55 am
Forum: Discussion
Topic: Windows in OpenGL ES or OpenGL ES in window?
Replies: 11
Views: 290

Re: Windows in OpenGL ES or OpenGL ES in window?

Compression ie S3TC(Direct X) seems to be for games.
ETC1 for OpenGLES/Android.

Precompressed for games, hardware decompressed on VC4?
aprox 4 times less memory moving around ;)
by Gavinmc42
Sat Jan 05, 2019 8:32 am
Forum: Discussion
Topic: Windows in OpenGL ES or OpenGL ES in window?
Replies: 11
Views: 290

Re: Windows in OpenGL ES or OpenGL ES in window?

Nice idea with 256 colour mapping. You want to try texture compression next? https://www.raspberrypi.org/forums/viewtopic.php?f=66&t=230404&p=1412070#p1412070 Those TMU sound interesting, I actually know what this means now :D Each TMU performs programmable filtering and automatic level-of-d...

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