2008/10/26 Simon Thum <[EMAIL PROTECTED]>: > Søren Hauberg wrote: >> issue is keeping the code fairly clean. I imagine that the solution >> you suggest will be fairly complicated, in which case I don't think it >> would be worth the slight performance gain. But perhaps my priorities >> aren't in place... > Well, the issue is precision which is affected by double-scaling (we have > an integer intermediary scale). You could also tackle that by having the > imed scale large (>>1024).
Just a quick thought: double-scaling means we transform one coordinate from [a, b] to [c, d] in the driver, and then from [c, d] to [e, f] in the server, right? Here [a, b] is determined by the hardware. What if we choose [c, d] equal to [e, f] ? Then the scaling in the server would be from [e, f] to [e, f] i.e. a unit scaling, which I assume doesn't affect the precision (if it does, then we could let the server check if the scaling is a unit-scaling, and only perform the actual scaling if it is not). Søren _______________________________________________ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg
