[U-Boot] [PATCH v3] Add 16bpp BMP support

[Guennadi Liakhovetski]

On Fri, 30 Jan 2009, Wolfgang Denk wrote:

> > If we really add more bmp formats, we also get more combinations like of 
> > bmp / lcd:
> 
> Not necessarily. We can always request that bitmap images match the
> "natural" color depth of the display. It makes no sense to send a 16
> bpp image to a 1 bpp display, nor does it vice versa.

Hm, then I wouldn't be able to present 8bpp BMP on i.MX31 with 16bpp 
colours?

> > BMP	LCD
> > 1-bit	1-bit
> > 8-bit	1-bit
> > 16-bit	1-bit
> > 1-bit	8-bit
> > ...
> > 
> > if we really want to go that way, maybe better break this code into 
> > several functions for different format conversions?
> 
> We do NOT want to do everything that is possible, but only what is
> reasonable.

Isn't sending RGB24 image with 256 colours to a 16-bit display reasonable?

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.

DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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