Modification Of The Boot Screen

[NinjaFae]

I've a series of questions, mostly related.

1) Is it at all possible to modify the green boot-up screen with something nicer at all, since it already tells you on boot, via the black one, that it's a GP2X.
2) If it is, is this mod going to be a dangerous one, or, is it as simple as with the sound-effects, ie, name the picture appropriately, then boot up with start-select depressed?
3) What would the supported format be for such a start screen, colour depth, etc.

I know that, in Linux, when you have the start up images, that they can usually be altered with a simple line in a config file.

Thanks in advance.

 

[fheusel]

the green logo is placed in http://svn.gp2x.com/gp2x/tag/kernel/2.0.0/...nux_logo_gp2x.h, so you have to recompile your kernel to get this image replaced...

btw: I've made a small (and very bad coded) tool to confirm this, just extract the plain hex-data from this header file and load this using this tool... I knew there are wrong colors, but who cares :-/
here is the link: http://fheusel.fh.funpic.de/gp2x/fblogo-viewer.zip

 

[___]

since the picture would always have to be of the same filesize, wouldn't it be possible to inject it into the binary file? I am not sure what format it is in but I suppose it would have to be a png file or something similar. If you could determine the exact offset, maybe a patcher could be used to do the job. But on the other hand, that might result in bad crc and we might end up with a brick... cause if the kernel image is being corrupted, i guess flashing it will result in chaos...

 

[SiIV]

How about keeping a picture, the same size as the gp2x screen handy, and while the green screen is up, put the picture on top of the screen. A lot safer than recompiling your kernel

 

[WrongEyedJesus]

How about keeping a picture, the same size as the gp2x screen handy, and while the green screen is up, put the picture on top of the screen. A lot safer than recompiling your kernel

Good idea, alternatively you could move your head and look somewhere else, perhaps towards the , pizza, nachos or large bottle of fizzy drink nearby.

Sorry I've had a bad day.

 

[NinjaFae]

the green logo is placed in http://svn.gp2x.com/gp2x/tag/kernel/2.0.0/...nux_logo_gp2x.h, so you have to recompile your kernel to get this image replaced...

btw: I've made a small (and very bad coded) tool to confirm this, just extract the plain hex-data from this header file and load this using this tool... I knew there are wrong colors, but who cares :-/
here is the link: http://fheusel.fh.funpic.de/gp2x/fblogo-viewer.zip

Ouch, seems a lousy way to design something. Still, was worth a shot. After having had my handheld brocked once, I'm doing nothing that will risk it again, out of respect for the awesome power of Flash. Heck, if my baby doesn't want to be upgraded, I'm not going to argue anymore, even for a new picture.

 

[Nickmon]

Why dont we ask GPH to make it mod able in the next OS release !

 

[nubie]

2) If it is, is this mod going to be a dangerous one, or, is it as simple as with the sound-effects, ie, name the picture appropriately, then boot up with start-select depressed?

I don't think it is very dangerous if it doesn't touch your Uboot. It *may* kill your firmware, but that doesn't matter at all, as long as Uboot (the black screen informing you of boot-up) is still there you can put the firmware on an SD card and re-flash it to good as new as much as you want.

The real problem is re-compiling your kernel.

Can we re-compile the kernel right now? Who has done it so far?

Or at least put in a request for moddable boot screen in firmware 2.X?