Adding custom splash screen to yocto image

 Hello All,

In this article we are going to see how we can add custom splash screen to our yocto image.

pre-requisite: you need to be familiar with my previous topics as it contains the necessary steps to setup the environment  and  build the image.

link to my previous topic: https://learnyoctowithme.blogspot.com/2022/04/constructing-embedded-linux-image-for.html

https://www.blogger.com/blog/posts/8695339245532547417?tab=rj


Adding custom splash screen to yocto image:

 lets check what is the default splash screen set to image.

step 1: open local.conf file

$ vi poky/build_x86/conf/local.conf 

and append the following line to local.conf file as

IMAGE_FEATURES += "splash"

and build the image using below command

$ bitbake core-image-minimal 

after successful compilation of build , boot the image using below command

$ runqemu

you can observe the splash screen while booting of the image


Now we will modify the custom splash screen with our image.

step 2: Psplash expects an image to be in header file format, so you need to convert your image into a header file format by using script called "make-image-header.sh"

source - http://git.yoctoproject.org/cgit/cgit.cgi/psplash/tree/make-image-header.sh

copy this make-image-header.sh script to your meta-poky/recipes-core/psplash folder

$ cp make-image-header.sh meta-poky/recipes-core/psplash

step 3: give the executable permissions to the script

$ chmod 0777 make-image-header.sh

step 4: run 
$ ./make-image-header.sh <path_to_image_file> <NAME>
Example: ./make-image-header.sh logo.png POKY

after successful execution of script you will have file logo-img.h

rename the file logo-img.h to psplash-poky-img.h

$ mv logo-img.h psplash-poky-img.h

and copy this file to files folder under psplash directory

$ cp psplash-poky-img.h files/

step 5: now compile the psplash recipe as

$ bitbake psplash



after successfully building the recipe , now compile the complete image as

$ bitbake core-image-minimal 



after successful building, now run the image as

$ runqemu core-image-minimal

now while booting we can see the custom splash screen with our logo


That's it now we have build our image with custom splash screen.


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