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History log of /src/sys/arch/evbppc/wii/dev/gxreg.h
RevisionDateAuthorComments
 1.1  25-Oct-2025  jmcneill branches: 1.1.2; 1.1.4;
wii: Use GX to accelerate RGB to YUY2 conversion.

Allocate a 640x480x32 RGB buffer in memory, and when not in EMUL mode,
use the CPU to copy from the RGB buffer to EFB (taking advantage of the
pixel engine to do RGB -> YUY2 for us) and then use the GX to copy from
EFB to XFB.

Not only does this improve performance significantly in X, it also results
in better colour reproduction. The previous software method employed by
xf86-video-wsfb had some corner cases where eg. dark colours would display
as bright pink.
 1.1.4.2  26-Oct-2025  martin Pull up following revision(s) (requested by jmcneill in ticket #1187):

sys/arch/evbppc/wii/dev/wiifb.c: revision 1.8
sys/arch/evbppc/wii/dev/gxreg.h: revision 1.1
sys/arch/evbppc/include/wii.h: revision 1.11
sys/arch/evbppc/wii/machdep.c: revision 1.11
sys/arch/evbppc/wii/dev/viio.h: file removal

wii: Use GX to accelerate RGB to YUY2 conversion.

Allocate a 640x480x32 RGB buffer in memory, and when not in EMUL mode,
use the CPU to copy from the RGB buffer to EFB (taking advantage of the
pixel engine to do RGB -> YUY2 for us) and then use the GX to copy from
EFB to XFB.

Not only does this improve performance significantly in X, it also results
in better colour reproduction. The previous software method employed by
xf86-video-wsfb had some corner cases where eg. dark colours would display
as bright pink.
 1.1.4.1  25-Oct-2025  martin file gxreg.h was added on branch netbsd-10 on 2025-10-26 13:12:29 +0000
 1.1.2.2  26-Oct-2025  martin Pull up following revision(s) (requested by jmcneill in ticket #74):

sys/arch/evbppc/wii/dev/wiifb.c: revision 1.8
sys/arch/evbppc/wii/dev/gxreg.h: revision 1.1
sys/arch/evbppc/include/wii.h: revision 1.11
sys/arch/evbppc/wii/machdep.c: revision 1.11
sys/arch/evbppc/wii/dev/viio.h: file removal

wii: Use GX to accelerate RGB to YUY2 conversion.

Allocate a 640x480x32 RGB buffer in memory, and when not in EMUL mode,
use the CPU to copy from the RGB buffer to EFB (taking advantage of the
pixel engine to do RGB -> YUY2 for us) and then use the GX to copy from
EFB to XFB.

Not only does this improve performance significantly in X, it also results
in better colour reproduction. The previous software method employed by
xf86-video-wsfb had some corner cases where eg. dark colours would display
as bright pink.
 1.1.2.1  25-Oct-2025  martin file gxreg.h was added on branch netbsd-11 on 2025-10-26 13:10:04 +0000

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