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matherp
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Joined: 11/12/2012
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Posted: 09:06am 30 Oct 2017

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Please find attached version 5.4.14

2017-10-30_185432_mmbasicjessie.zip

2017-10-30_185448_mmbasicstretch.zip

This includes the ability to use a conected HDMI display as a LCDPANEL

OPTION LCDPANEL HDMI

See the video to watch GUI test running on a 1600x1200 HDMI display

The code automatically reads in the display size and MM.HRES and MM.VRES are set automatically for you. The display is in full 32-bit colour (RGBA).

The code works best on a Pi running Raspbian Lite as the Pixel GUI will break through the Pi-cromite display - anyone know how to fix this?

On a Lite install it works best if you disable the login prompt and the cursor

To disable the login prompt use

sudo systemctl disable getty@tty1.service

to disable the flashing cursor use:

sudo su
setterm -cursor off > /dev/tty1

All normal graphics commands are available including transparent text and BLIT and GUI commands will work as normal. Of course there is no TOUCH capability and mouse control of the cursor is a problem for another day.

WhiteWizzard
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Joined: 05/04/2013
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Posted: 09:45am 30 Oct 2017

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BRILLIANT!

Do you know what the performance is like on a RPi ZeroW? I don't want to erase my test SD card if its 'too slow' (i.e. best run on a RPi3 only).

Regarding TOUCH; there are many RPi 7" capacitive Touch TFTs. Do you think a single point TOUCH could be implemented somehow on these screens (i.e. no need for all the fancy multi-touch stuff that a capacitive allows for). These TFTs are much less 'reflective' as they don't have the horrible shiny resistive 'overlay' making for a much better colour contrast.

I will email you some more Q's . . .

WhiteWizzard
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Posted: 10:30am 30 Oct 2017

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Peter,

Will OPTION LCDPANEL CONSOLE work by any chance?

WhiteWizzard
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Posted: 10:44am 30 Oct 2017

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matherp said The code automatically reads in the display size and MM.HRES and MM.VRES are set automatically for you.

Sorry if this seems like a silly question; so in the above example, is MM.HRES = 1600, and MM.VRES=1200?

IF SO, then does this mean we can use LOAD IMAGE to display much higher resolution images?

Thanks . . .

Phil23
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Joined: 27/03/2016
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Posts: 1667

Posted: 10:44am 30 Oct 2017

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Superb,

Before reading the entire post I felt a Touch feature coming on,
somewhere down the track.

Phil.

matherp
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Posted: 11:15am 30 Oct 2017

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Quote Do you think a single point TOUCH could be implemented somehow on these screens

Yes but I don't have one to develop/test

Quote Will OPTION LCDPANEL CONSOLE work by any chance?

No. that is a lot of boring grunt work and I'm not sure it gives any advantage over a separate SSH session

Quote IF SO, then does this mean we can use LOAD IMAGE to display much higher resolution images?

Yes, works perfectly now

Quote are there any other 'niggles' you have with this version?

Raspberry Pi blanks the screen after a timeout if no kbd/mouse input. Haven't solved this yet for Lite but have for Pixel

WhiteWizzard
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Posted: 11:35am 30 Oct 2017

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OK - thanks for those answers.

I will try and arrange a capacitive Touch Screen for you but it won't be this week I'm afraid (funds tied up already).

Let me know if you have a preference in type of TFT - I was thinking of the 'Official RPi Touch Screen', but there are others!

Last question tonight - can you measure how long (in mS) to load a 1600x1200 hi-res bmp when you get a chance. I am curious as to the speed for use as a digital photo frame for my kiddies

(RPi 3 coming tomorrow from RS)

WW

matherp
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Posted: 10:19pm 30 Oct 2017

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Quote Last question tonight - can you measure how long (in mS) to load a 1600x1200 hi-res bmp

241mSec on a Pi Zero W

WhiteWizzard
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Posted: 10:29pm 30 Oct 2017

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Thanks for that info - thats great.

I have a RPi3 coming today and was going to put on Lite OS. However, IF I were to install full GUI OS instead, you mentioned about the GUI 'breaking through'. What do you mean by this? Put another way; is MMBASIC useable on a full GUI install enough to see the graphics on the HDMI output.

Courier just been but wasn't the Pi3

matherp
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Posted: 10:48pm 30 Oct 2017

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Quote is MMBASIC useable on a full GUI install enough to see the graphics on the HDMI output.

It is fully usable but the clock and the load meter update in the top right and overlay the image - only a tiny area on a 1920x1080 screen. This can be largely negated by doing BLIT READ of this area and then BLIT WRITE at frequent intervals. This restores the contents of the mmbasic framebuffer to the screen

Of course, if you start clicking with the mouse other areas of the desktop will "break through".

To stop screen blanking on Lite

sudo nano /boot/cmdline.txt

Append " consoleblank=0" to the end of the line

To stop screen blanking on Pixel (Stetch: not tried on Jessie)

sudo nano /etc/lightdm/lightdm.conf

in the "[Seat:*]" section insert the line

"xserver-command=X -s 0 dpms"

In both cases reboot for the change to take effect

Edited by matherp 2017-11-01

matherp
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Posted: 12:32am 31 Oct 2017

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Updated manual with OPTION LCDPANEL HDMI and details of helpful Raspbian mods in Appendix E

2017-10-31_110439_Pi-cromite_Manual.pdf

I've also now found how to get a clear screen on a Pi with the Pixel desktop

First stop the desktop:

sudo systemctl stop lightdm

Then stop the flashing cursor:

sudo su
setterm -cursor off > /dev/tty0

NB this is a different tty device than used in Lite

To re-enable the desktop

sudo systemctl start lightdm

This version of the manual also includes details of the JSON$() functionEdited by matherp 2017-11-01

plasma
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Joined: 08/04/2012
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Posted: 09:30am 31 Oct 2017

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Wow , great Work matherpEdited by plasma 2017-11-01

atmega8

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Posted: 10:36am 01 Nov 2017

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Amazing Peter!!!!!!

Thank You ;-)

mallorn

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Joined: 14/01/2018
Location: Sweden
Posts: 9

Posted: 07:47am 14 Jan 2018

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matherp said The display is in full 32-bit colour (RGBA).

I'm using Stretch lite, and still looking around how to set 32bit-RGBA framebuffer on rpi. All I have is monochrome mmbasic...

matherp
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Posted: 08:24am 14 Jan 2018

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Quote and still looking around how to set 32bit-RGBA framebuffer on rpi

Never played with it but google says use fbset

mallorn

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Joined: 14/01/2018
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Posted: 09:47am 14 Jan 2018

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matherp said google says use fbset

already did the

fbset -depth 32

on 640x480 mode, but

fbset --info

says:

mode "640x480-60"
# D: 25.175 MHz, H: 31.469 kHz, V: 59.940 Hz
geometry 640 480 640 480 32
timings 39722 48 16 33 10 96 2
accel true
rgba 8/16,8/8,8/0,8/24
endmode

Frame buffer device information:
Name : BCM2708 FB
Address : 0x3eace000
Size : 1228800
Type : PACKED PIXELS
Visual : TRUECOLOR
XPanStep : 1
YPanStep : 1
YWrapStep : 0
LineLength : 2560
Accelerator : No

(it is strange for me that the default mode for 2560x1080 monitor is "1824x984")
so I guess I have no /32 mode there.

edit: SORRY, I was wrong, I have the colors... I was just trying COLOR numbers from 1-4 when testing "CIRCLE 300,300,100,100", but I see now that COLOR can be set from 0 to 16 777 215.
Problem solved... it was no problem ...Edited by mallorn 2018-01-16

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