[U-Boot-Users] [RFC] Splash image

[Wolfgang Grandegger <wg@grandegger.com>]

Hi Rodolfo,

Rodolfo Giometti wrote:
> Hello,
> 
> I'm planning to review the splash image support and in order to do that
> my next steps should be:
> 
> 1) Remove the logo support.
> 
> Currently we have two function for a boot screen: CONFIG_SPLASH_SCREEN
> and CONFIG_LCD_LOGO. I propose to remove logo support since logos must
> be statically compiled into u-boot and cannot be changed unless
> rebuild u-boot. On the other side splash images could be loaded at
> runtime.
> 
> 2) Rewrite the lcd_display_bitmap() in order to be more portable
> across several BPP values.
> 
> I'd like to have some suggestions from you before starting to modify
> the code. :)

I already have a big rewrite of the LCD driver, as I already told you 
some time ago. Till now I did'nt find the time to post it, sorry. Will 
do so next week. It supports dynamic display configuration via FDT, 
which requires substantial modification.

Nevertheless, for true-color display (BPP >= 8) we should use 
"drivers/cfb_console.c". "common/lcd.c" just supports properly 
monochrome and 8-bit displays with color table. It would make more sense 
to spend time for a unified display driver in U-Boot. Unfortunately, 
that's not a trivial task.

Wolfgang.