[Linux-fbdev-devel] Question on imageblit

[Antonino D. <ad...@po...>]

Hi,

I have written a framebuffer driver for the i810/i815 chipsets for
linux-2.5.12.  It entirely uses fbgen, and for accelerated drawing
functions, fbcon-accel (copyarea, fillrect and imageblit).  It works
quite well in my system.

My question:  Imageblit is used primarily for putc and putcs, right?  So
basically, a monochrome bitmap located in system memory is copied to the
framebuffer memory which also undergoes color expansion depending on the
pixelformat of the framebuffer. So, is it necessary to support other
color conversions (such as a copy from 8bpp to 32bpp, or even from a
higher bpp to a lower bpp)?  

The patch is at
http://prdownloads.sourceforge.net/i810fb/linux-2.5.12-i810fb.tar.bz2
The patch already includes James Simmons' fbdev_fixs.diff for 2.5.12. 

Tony