Martijn van Oosterhout wrote:
> On 7/1/06, Michel Dänzer <[EMAIL PROTECTED]> wrote:
>>>> Actually, this points out the possible source of the remaining problems:
>>>> x2 and y2 also need clamping to fbWidth-1 and fbHeight-1, respectively,
>>>> and if (x1 >= x2 || y1 >= y2), the cliprect is empty and should be
>>>> skipped.
>> Make that '[xy]2 should be clamped against fb{Width,Height}-1, not
>> [xy]1, and if (x1 > x2 || y1 > y2) ...'.
>
> I'm kinda hoping that the xserver isn't going to send windows
> coordinates with negative width/height (ie assume drawable->[wh] > 0).
> And that if the window is entirely offscreen, an unmap event will
> cause nothing at all to be drawn (rmesa->driDrawable == NULL).
>
You can't rely on nothing being drawn when the window is not visible,
I'm afraid.
Keith
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