[Coco] RGB to XGA
Bruce Borer
brucep.borer at gmail.com
Tue Dec 23 17:45:52 EST 2025
I just completed my first Raspberry Pi PICO project.
It takes the RGB from the CoCo 3 and converts it to
XGA. There were two pictures shows the difference
between CoCo 3's RGB and CMP at Width 80 but they
make the post too big. (I am new to posting here)
There is more work to do and I will post more as I improve
the conversion.
Currently the CoCo 3 RGB is 256 pixels wide with 192 lines
when the Width is 32. This expands to 400 pixels when width
is 80. Therefore I converted 400 pixels by 192 lines for all
CoCo widths. XGA is 800 x 600. To use as much of the screen
I doubled the width of CoCo pixels and repeated each line twice.
When I learn to post a video with my daughter's help I will let
the group know where to view it.
Bruce P. Borer
PS - If there is any interest of what I have done, post a reply.
More information about the Coco
mailing list