[arch-dev-public] Kernel framebuffer logo

James Rayner iphitus at gmail.com
Fri Jan 25 06:04:44 EST 2008


On Fri, January 25, 2008 20:06, Damir Perisa wrote:
> hi Thayer,
>
> Friday 25 January 2008, Thayer Williams wrote:
>  | My method for making the kernel logo:
>  |   1. Extract a png from the svg sources
>  |   2. Resize and optimize the colour depth with GIMP/Fireworks
>  |   3. Use pngtopnm (after patching our netpbm package)
>  |   4. Use pnmtoplainpnm to finish it off
>
> i use the following:
>
> 1 export png in inkscape
> 2 flatten image  (gimp)
> 3 gaussian blur ~=1/100 of image width = pixel (120px final wide pic has
>   1.2 px gaussian blur - makes it easier to dither sharp edges later)
> 4 resize to 120x120 px
> 5 put in indexed colourspace, use FS dithering
> 6 export image to ppm respectively to pbm
> 7 build kernel to test it (i'm compiling right now)

As said above, gimp exports fine:
http://iphitus.loudas.com/arch/ck/misc/logo.png

Did that a few years ago as a bit of a joke. Out of curiosity, I did one
later that was big enough to only allow 1 line of text. Made a nice fake
bootsplash, but of course wasnt remotely practical.






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