[cairo] potential bug in cairo relative to intel drivers
Bill Spitzak
spitzak at gmail.com
Thu Jul 30 16:34:25 PDT 2009
Carl Worth wrote:
>> I still think Cairo could be changed to do EXTEND_REPEAT and clip with
>> an antialiased polygon and everybody would be happier.
>
> Certainly you mean EXTEND_PAD here, not EXTEND_REPEAT, (since
> EXTEND_REPEAT will give you discontinuities unless your image happens to
> be periodic).
Yes I did mean EXTEND_PAD. Sorry I was confused by other software that
calls this "repeat" because it is repeating the edge pixels (it calls
EXTEND_REPEAT "tiling").
> But still, adding an additional stage of compositing to all operations
> would not make me happy at all, (nor anybody else who cares about
> performance).
My complaint is that I think a solution built into cairo/pixman would be
a faster than the solution required by multiple cairo calls now. The
built-in one should be able to take advantage of knowing that the clip
is exactly 4 straight lines that are parallel with particular features
of the source surface.
More information about the cairo
mailing list