> It is the video chip's feature that it can display a video overlay over > the RGB bitmap. The pixels where the overlay can be seen is defined by a > colorkey (what was 0xFF00FF in the example), or the alpha component of > the display RGB bitmap (not used on the XO since the change 16 bit > bitmaps). What you are seeing that the X server does not disable the > video overlay while switching programs. It can be an error or just some > braindamaged X stuff. Either way, it has nothing to do with bitmap > operations.
Then I believe there *was* something wrong: When I was looking at the "character-based" Terminal screen, there should not have been a 'video overlay' interacting with what was being shown to me. When I am looking at the (full-screen) video output, if what I see involves a 'video overlay' -- that's fine with me. But when I "switch away" from the 'session' displaying the video output, I don't want "interference" to what I'm currently looking at (whether that interference comes from a 'video overlay', or from whatever). -------- Both persons who have answered me have talked about "how things from the video frame can be seen". But I was not looking at video - I was looking at TEXT. If I understand correctly what has been told me here, neither the 'black' of the text characters themselves, nor the 'white' of the background for the text, should have _allowed_ "things from the video frame to be seen". I definitely did not see any color. What I did see was that some parts of the 'black' text characters changed briefly to _less_ 'black' (they went black <--> gray <--> black) depending on where on *its* screen the ongoing video 'session' WOULD HAVE depicted "bright" or "dark" areas. mikus _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel