[Pixman] [PATCH 1/2] sse2: if width == stride, convert to linear image
Chris Wilson
chris at chris-wilson.co.uk
Fri May 6 05:44:54 PDT 2011
On Fri, 06 May 2011 09:18:51 +0200, Soeren Sandmann <sandmann at cs.au.dk> wrote:
> Chris Wilson <chris at chris-wilson.co.uk> writes:
>
> > + if (width == stride) {
> > + width *= height;
> > + height = 1;
> > + }
>
> Do we need a check here that the mulitplication doesn't overflow?
> pixman_multiply_overflows_int() can be used for that.
I think we are safe here, as we check for height*stride (in bytes)
overflow during create_bits().
I'll work these small patches into a real submission with a corresponding
addition to the test suite. Thanks,
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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