How to change Splash Screen (NOT BOOTANIMATION) in 900Supersport ROM U30GTH ??

[blueangel666]

Hi my friends !

I have installed this rom "Cube U30GT H 1.11 900 supersport". It's perfect, but (sorry 900 supersport), I don't like the Splash Screen on boot. That image with green "dragons".
NOT BOOT ANIMATION. This is simple to change --> bootanimation.zip

The splash screen, I think, is in kernel.img, but I don't know how to change it.

Please, help me ..

Thanks !!

[900supersport]

I'm guessing you mean cubes 'double peas'.

The kitchen I have published has a kernel menu with a brand option. If you have a suitable graphic prepared you can then brand the kernel.

I'll see about digging out the detail on preparing the image.

[900supersport]

Graphic preparation

Graphic preparation, you need to know the size of the kernel image, it's often the same as the display resolution. Once you know that prepare a png of the image you want then follow these instructions from Finless

First this is a handy tool to have. It converts a PNG to CLUT data.
This will work in windows as it uses CGI-Win dll's. But the scripts inhere should also work in Linux.

https://docs.google.com/file/d/0B9BF...RNb3BDaGM/edit

What you do is drag and drop your PNG onto the .bat file and it will convert the PNG to many files.
Of these files we only need:
logo_clut
logo_data

My kitchen is currently in a test state, I'll shortly be publishing a release version and will post some tutorials when I do.

[FONT=courier new]======================================================================[/FONT]
[FONT=courier new]| FreakTab RK ROM Kitchen by 900supersport v2.0.0                    |[/FONT]
[FONT=courier new]| Brian Mahoney                                                      |[/FONT]
[FONT=courier new]| 19 Oct 2013                                                        |[/FONT]
[FONT=courier new]======================================================================[/FONT]
[FONT=courier new]| Current ROM U30GT2V2.06_20131017                                   |[/FONT]
[FONT=courier new]| CWD /home/brian/Desktop/ROMS/cube/u30gt2/2.06                      |[/FONT]
[FONT=courier new]| Kernel image size:1920:1200                                        |[/FONT]
[FONT=courier new]======================================================================[/FONT]
[FONT=courier new]| a Get Kernel image info                                            |[/FONT]
[FONT=courier new]| b Brand Kernel                                                     |[/FONT]
[FONT=courier new]======================================================================[/FONT]
[FONT=courier new]| m main menu                                                        |[/FONT]
[FONT=courier new]======================================================================[/FONT]
[FONT=courier new]Enter selection :[/FONT]

[blueangel666]

Thanks Supersport ...

But, now I have two files : "logo_clut" and "logo_data"

How can I put inside kernel ?
Can I do it in windows OS ?

[900supersport]

My kitchen is written in python, the branding of the kernel would probably work in windows, but the kernel needs to be signed with rkcrc.

[lewy20041]

i have rkcrc compiled for use in windows.
i can share if you want.

[blueangel666]

oh yes ... lewy !!

Please, can you share it ?
Do you want my email (in PV message), or you post here ??

Thanks !!

[900supersport]

I think this may run stand alone on windows

I have a working python script, by no means the finished product but it does a job. Use a follows
in a folder working ensure you have kernel.img, logo_clut and logo_data.
from the folder containing working (on up) execute the python script.
sign kernelout.img

rkcrc -k working/kernelout.img kernel.img

#!/usr/bin/python


#globals
cluto = 0   # clut offset
pl = 0      # palette length
datao = 0   # data offset
w = 0       # kernel data image width
h = 0       # kernel data image height
ds = 0      # kernel data image size
    
def findstring(f, s):
    '''find the first occurance of the string s in the file f


    '''
    l = len(s) 
    o = 0
    f.seek(o)
    while f.read(l) != s:
        o = o + 1
        f.seek(o)
    return o + l
    
def printkerneldata():
    '''get kernel data '''
    global cluto    # clut offset
    global pl       # palette length
    global datao    # data offset
    global w        # kernel data image width
    global h        # kernel data image height
    global ds       # kernel data image size
    
    
    with open('working/kernel.img', 'r') as fr:
        o = findstring(fr,'ppllogo_RKlogo_clut') 
        fr.seek(o)
        
        cluto = o
        pl = int(fr.read(1).encode('hex'),16)
        print '=================================================='
        print 'ppllogo_RKlogo_clut offset:', 
        print "{0:x}".format(cluto)
        print 'Palette length:', pl
        print '=================================================='
        
        o = findstring(fr,'logo_RKlogo_data') 
        fr.seek(o)
        
        datao = o
        
        w=int(fr.read(2).encode('hex'),16)
        h=int( fr.read(2).encode('hex'),16)
        ds = w * h + 4
        
        print 'logo_RKlogo_data offset:',
        print "{0:x}".format(datao)
        print 'resolution: ',
        print w,':',h 
        print 'data size: ',
        print ds
        
        print '=================================================='


def brandkernel():   
    global cluto    # clut offset
    global pl       # palette length
    global datao    # data offset
    global w        # kernel data image width
    global h        # kernel data image height
    global ds       # kernel data image size
    
    with open('working/kernel.img', 'r') as fr:
        #fr.seek(8)
        with open('working/kerneltmp.img', 'w') as fw:
            fw.write(fr.read(cluto))
            with open('working/logo_clut') as ft:
                for c in iter(lambda: ft.read(1),""): 
                    fw.write(c)
                    fr.read(1)
            
            for c in iter(lambda: fr.read(1),""): 
                    fw.write(c)
                    
    #print datao        
    with open('working/kerneltmp.img', 'r') as fr:
        fr.seek(8)
        with open('working/kernelout.img', 'w') as fw:
            fw.write(fr.read(datao-8))
            with open('working/logo_data') as ft:
                for c in iter(lambda: ft.read(1),""): 
                    fw.write(c)
                    fr.read(1)
            
            for c in iter(lambda: fr.read(1),""): 
                    fw.write(c)           
                     
            
printkerneldata()


brandkernel()

I'll do some tidying of the code but it works as is, my u30gt2 is now branded,

This was the test code I developed prior to integrating into my kitchen.

[lewy20041]

anyway if anyone need it you can get it here

[blueangel666]

It doesn't work on Windows OS or I don't know how it works.

I tried with :

rkcrc -k working/kernelout.img kernel.img

[lewy20041]

It doesn't work on Windows OS or I don't know how it works.

I tried with :

rkcrc -k working/kernelout.img kernel.img

did you "cd" to your working directory?
or tr to put whole path for kernel in and out.
also you may try cygwin if nothing work
in cygwin you need to use something like

cd pathtodirectory
./rkcrc -k working/kernelout.img kernel.img

[900supersport]

did the python run and create a new file?

[blueangel666]

Yes,
rkcrc create a new kernel.img file.
I flashed it on my Cube with ROM Flash Tool (kernel and recovery selected), but after flash, my tablet didn't boot anymore.

[900supersport]

Yes,
rkcrc create a new kernel.img file.
I flashed it on my Cube with ROM Flash Tool (kernel and recovery selected), but after flash, my tablet didn't boot anymore.

Flash your original kernel back. When flashing a kernel you only need to flash the kernel. If you upload the kernel and the two files I'll see if I can brand and sign it for you.

Brian

[blueangel666]

You are very kind, Brian, but I like to learn.
I will try linux, maybe your script will work.
Can you post everything I need for this job ? Or your script renamed "rkcrc" is enough ?

Thanks, Brian!