Thanks for pointers Nico. I used the same picture laoding code and the same image. The only thing that changed was the graphics initialization: VGA ROM vs libgfxinit.
I have used SeaBIOS with the same bootsplash image. AFAIK it searches for a compatible (for given image resolution) VESA mode and displays the boot splash. The image was a JPG 1024x768 pixels (32bpp I guess). On 3/27/20 9:35 PM, Nico Huber wrote: > Hi Michal, > > On 27.03.20 15:49, Michal Zygowski wrote: >> Another question about libgfxinit. >> >> Up till Skylake the libgfxinit worked great for me, however after >> enabling it on a Kaby Lake platform I noticed the colors are flipped. >> I.e. when using VGA ROM the bootsplash image is correctly displayed in >> RGB, but when using libgfxinit and hires FB the colors are BGR (the same >> image is not displayed in same way). Do you possibly know what may the >> cause? > all I know is that with libgfxinit, so far you get the exact same pixel > encoding for every platform (where I tested colors). I think it's BGRX. > > What mode do you set with the VGA ROM? In the end it should be reported > in a `struct lb_framebuffer` so you could compare the two encodings. > Also, the code that loads the picture should write the pixels according > to the reported format. Unless somebody took too many shortcuts. > > Nico > _______________________________________________ > coreboot mailing list -- [email protected] > To unsubscribe send an email to [email protected] -- Michał Żygowski Firmware Engineer http://3mdeb.com | @3mdeb_com _______________________________________________ coreboot mailing list -- [email protected] To unsubscribe send an email to [email protected]
