#apertus IRC Channel Logs

Hi Bertl , the demo code of ft601 uses 16K * 36bits single port ram, which is much more than what MachXO2 can provide. So I wanted to know what ratio of the ebr sram should I give to ft601 controller.

off to bed now ... have a good one everyone!

hi BAndiT1983

how's it going

Good morning!

Its going good. How are you? :)

I have been writing the code for ft601 last week and will be ready by tomorrow. Tomorrow I will receive the usb plugin module and test that code. :)

regarding FT601 demo code, what were/are your plans there?

Demo code is the code given by ftdichip.com for the ft60x development board for spartan 6. I am taking reference from there and writing for LCMX-2000HC

okay, just be aware that those 'demos' are often of low quality (haven't checked this one yet to be honest)

Yes I saw the low quality of the code

makes sense

wasn't aware that Lattice made 'funny' advertisements for the MachXO2 :)

Oh my god, how can this be official XD. It makes me say "ooooo" XD

off for now ... bbl

hi

has it worked?

It worked for 5DII_14may14_blfixOFF.MLV

https://www.magiclantern.fm/forum/index.php?topic=11899.0

i know the file

Yes, it is repeating the frames after 7 everytime

using Qtimer

just a quick and dirty hack

evening you guys

EnableRendering was kept by me in the loop, but probably not required, as it was coming from some tests, to see what is blocking the preview

qCoreApplication::processEvents(QEventLoop::AllEvents, 100);

okay, i will see this

https://doc.qt.io/archives/qq/qq27-responsive-guis.html

ehm, rather short code review it seems

gimme a sec

just a matter of few settings in qtcreator

what really is changed?? BAndiT1983 ?

a few things are there apart from that

dieTime?

this is very important place there, as it allows the actual playback to be done

frames were not showing up, but loop was running in circles

ah so you stopping it for 30msec

The frames were not showing

idx = 7x3 resetting?

resetting is also not that important, just done so the loop is endless for testing

looks like manual event loop checking

right, it has to be ensured that events of the application are processed, so we have to kick it manually

is like delay function or something

also there are articles by qt about parallel threads for opengl, to ensure the preview is not blocked or not blocking

it's doing the delay for frame rate partially, but also to give some time for event processing

i mean are you anticipating it?

probably, but i haven'T read further what qt suggests to do for responsive GUI and OpenGL

what's the logic behind idx = (idx == 7*3) ? 0 : idx ?

first *

7*

yes

have just grabbed any number, which was in the range

i wonder if Bertl_oO sees this patch XD

indentation etc :P

oh, trust me, he feels unsettling vibrations when code is not formatted properly

extending present static allocators

yes,

for(int index = 0; index < allocator->GetFrameCount(); index = index + 3)

GetFrameCount, gives count of total number of frames

should be GFC*3

if number of frames are 15 , then GetFrameCount will return 45

:( sad nomenclature

it stores data like this (R1 G1 B1)(R2 G2 B2)..

sorry , I will change the name

and explicitly multiply 3 later

compilers have become smarter, but it's better to prevent beforehand

oh... you said that :P

someday we may need long instead of int

also, if not already go for uint rather than int

this uint* are portable more or less

and when handling pixel data... be sure you know the size of variables

it's better to deal with uint8_t than int

as for number we are using a big buffer

dev_, you just exchange the frames required in the static allocator, if you can't acquire one big chunk or require more chunks, then you need additional pages of memory

create also an array or vector to hold info about the state of a bucket, like occupied or free

there are certain limitations from OSes how much memory you can acquire in a big block

have a circular buffer of these components

supraraj, i would go for a class which is presenting a movie clip and it has a slim vector of frames, which point to the data in allocator

why do we need to keep state of particular frame

implementations do differ

dev__, if the frame was already presented and the playback continues, it can be replaced by new data, so we need to know which data is obsolete

BAndiT1983: generally that would be an LRU but a circular Q should do

ah, looked it up

but since playback is not really using random access

yes, but it's not a problem to check data in circular manner, so we don't have to go forth and back and just grab next one, at the end it wraps and starts from the beginning

more important is to keep track of the cells/buckets and their state

heading off to cook dinner

suggestion: create enum with free, occupied and old and use a vector for now to keep track

supraraj, no problem, have fun, am here if something is up

enums are better... I Love those macros :) state = BKT_USED;

will track the progress of the task actively, but won't work on it, to not intercept too much, instead i will check on apertus wiki, as we had some cleanup tasks there

so C++11 has proper enums

okay

I will be using trello now

dev__, please name the board properly, like GSoC2019: OC frame server or similar, so it's easier to find in the list of the boards on my trello front page

very good, now it looks properly and can be found easier, as there are multiple gsoc boards

I will try to make methods for static allocator and try to test it

please also write down the goals and sub-goals in your gdoc file

if you find some other tool, e.g. text to diagram, then just give a note

I think , it is nice

yes, it has layout

yes!

ah, the lines are connected somewhere else, but still not my favourite tool for diagrams, just saying

That's why , i used gdocs to create the diagram

also using yEd very often

okay

Yes, just saw that

i know, that's why i've asked

any

and it can happen from any direction

thanks for your time BAndiT1983 , I will try to extend allocators so we can use them for playback now

just ask if you need infos

Thank you , Good Night!

Hey Bertl, I am removing the whole data loopback code segment. It will reduce the resource usage greatly.

good