Content of Boot Logo bin's

[Chuck_Norris]

Hey, hows it going? First off, I want to say great work on the liberty rom. My phone is running faster, longer, and with more features than ever before! w00t! Also the eagle logo is pretty BA...seems kinda like a throwback to the WWII eagles used in Germany's insignias. Anyway...

I pulled the boot logo bin files off my phone today and I was looking at them to see what makes them tick (I want to make my own). Eventually after trying to open them with various software (and failing) and doing some google searching I found that they are essentially .png files missing a few bytes at the beginning and end. I found another tutorial to add a custom boot logo and decided to give it a try. However, I added the header and footer bytes to the bin files I pulled off my phone, and I noticed they dont open as png files (and they are 256k in size which made me suspicious). When I looked at the liberty stock boot logo a little closer, I noticed it changed colors a few times (from that blue/greyish color to a little lighter).

So I guess my questions are:
Does this mean that these boot logos have several png files in them?
Would I be able to add a multiple files to a boot.bin myself?
And can I have them take up the whole screen?

Thanks for your help!

 

[mingaldrichgan]

Hey, hows it going? First off, I want to say great work on the liberty rom. My phone is running faster, longer, and with more features than ever before! w00t! Also the eagle logo is pretty BA...seems kinda like a throwback to the WWII eagles used in Germany's insignias. Anyway...

I pulled the boot logo bin files off my phone today and I was looking at them to see what makes them tick (I want to make my own). Eventually after trying to open them with various software (and failing) and doing some google searching I found that they are essentially .png files missing a few bytes at the beginning and end. I found another tutorial to add a custom boot logo and decided to give it a try. However, I added the header and footer bytes to the bin files I pulled off my phone, and I noticed they dont open as png files (and they are 256k in size which made me suspicious). When I looked at the liberty stock boot logo a little closer, I noticed it changed colors a few times (from that blue/greyish color to a little lighter).

So I guess my questions are:
Does this mean that these boot logos have several png files in them?
Would I be able to add a multiple files to a boot.bin myself?
And can I have them take up the whole screen?

Thanks for your help!

Are you sure it was the boot logo and not the boot animation (which comes after the boot logo) that was changing color? The answer to all three of your questions is yes for the boot animation, and no for the boot logo.

Also, the boot logo file (logo.bin) has very little in common with PNG files, which are compressed. It is, rather, a bitmap format similar but not identical to the Windows BMP format, in which each pixel's color information is laid out sequentially.

 

[Chuck_Norris]

Ah, alright. I could have sworn I saw a tutorial to change the boot logo using png files... Well I thought it would be pretty neat. I'll have to look into custom boot animations.

 

[mingaldrichgan]

Ah, alright. I could have sworn I saw a tutorial to change the boot logo using png files... Well I thought it would be pretty neat. I'll have to look into custom boot animations.

That guide probably said BMP, not PNG. Both the boot logo and boot animation can be easily changed.