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Import / projects / LGN-IP3870 / qtpyui / dump / dump-readme.txt
@John Ryland John Ryland on 22 Dec 2020 745 bytes import NUC files

Dump
----

dump.cpp is easily compiled using:

mips-linux-g++ dump.cpp -o dump

It is a very simple standalone utility which when run will copy
the contents of the framebuffer memory to a file called ./fb_dump

The QtPythonUI app when it starts up will look for /usr/opt/Qtopia/fb_dump
It will open and copy the data to the framebuffer and flush this to the LCD.

This can be used to display a startup splash screen the moment the
QtPythonUI app begins executing.

To prepare a fb_dump file, wait until the system is in a state that the
screen displays what you would like seen during startup. Then run the dump
command and it will capture the screen in that state and the next time the
devices boots it will display this screen at startup.