CVS commit: src/sys/arch/i386/bios

[Reinoud Zandijk <reinoud%netbsd.org@localhost>]

Module Name:    src
Committed By:   reinoud
Date:           Sat Mar 24 00:07:18 UTC 2007

Modified Files:
        src/sys/arch/i386/bios: vesabios.c vesabios.h vesabiosreg.h vesafb.c
            vesafbvar.h

Log Message:
Implement hardware scrolling in vesafb by utilising the whole frame buffer
memory and scrolling trough it. If the hardware is not capable it will
disable hardware scrolling.

For 640x480 at 8 bpp the speedup is around 4 times, at 1280x1280 at 32 bpp
the speedup is around 9.4 times.

Checked and OK'd by Jared McNeill. Thanks go to Jared and Michael Lorenz
for their tips and vcons knowledge!


To generate a diff of this commit:
cvs rdiff -r1.23 -r1.24 src/sys/arch/i386/bios/vesabios.c
cvs rdiff -r1.6 -r1.7 src/sys/arch/i386/bios/vesabios.h
cvs rdiff -r1.5 -r1.6 src/sys/arch/i386/bios/vesabiosreg.h
cvs rdiff -r1.20 -r1.21 src/sys/arch/i386/bios/vesafb.c
cvs rdiff -r1.3 -r1.4 src/sys/arch/i386/bios/vesafbvar.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.