> I always thought that the following color definitions would apply:

> #define RED 0x00FF0000
> #define GREEN 0x0000FF00
> #define BLUE 0x000000FF

Modulo which byte goes with which primary, that's what I'd expect too.

> And yet, if I blast those into my framebuffer, I actually get cyan,
> magenta, and yellow.

My first guess is that the bits get complemented on the way out to the
screen (that is, to get intensity N (on a 0..255 scale), you actually
store 255-N (or, equivalently, ~N) into the framebuffer).

> In my device driver, I set the fb_size value to (4 * 1024 * 1024),

Is the display actually 1024x1024?  Most Sun displays seem to be
1152x900.  (1024*1024 is a little larger than 1152*900, though, so this
probably isn't a source of trouble.)

					der Mouse

			       mouse@rodents.montreal.qc.ca
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