Write an image to the frame buffer (DrawImage)
routine in the Image.c file
writes an image to the frame buffer.
Note the following:
needs to be able to draw a rectangular area
on the screen, applying the given
alu and planemask; see
You will probably need to set up a static table
of size 16 that takes the alu value
as an index and returns the actual value required
by the hardware. See
The sample driver uses C defines
to create a series of macros
that will be used extensively to set the planemask value,
the alu value,
the various drawing command registers,
the drawing coordinates, and so forth.
You should attempt to use a similar paradigm in your driver
to map the alu functions (especially
GXcopy, GXxor, and GXinvert
to the adapter's operations.
has been written, it may be possible to
run the X server in an almost usable manner.
The cursor code leave tracking on the screen,
to be correctly implemented,
but otherwise you should be able to start X clients
and see their output on your graphics adapter.
© 2005 The SCO Group, Inc. All rights reserved.
OpenServer 6 and UnixWare (SVR5) HDK - June 2005