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randr: fix operation order so that rotation+transform works

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The matrix multiply to combine rotation and projective transforms was being
done in the wrong order.

Signed-off-by: Keith Packard <keithp@keithp.com>
(cherry picked from commit b2bf67b61c)

Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Benjamin Defnet 2009-06-10 21:35:48 -07:00 committed by Keith Packard
parent 7f95d18397
commit 72c9bc64ff
1 changed files with 3 additions and 3 deletions
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6
randr/rrtransform.c
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@ -251,10 +251,10 @@ RRTransformCompute (int x,
#ifdef RANDR_12_INTERFACE
if (rr_transform)
{
if (!pixman_transform_multiply (transform, transform, &rr_transform->transform))
if (!pixman_transform_multiply (transform, &rr_transform->transform, transform))
overflow = TRUE;
pixman_f_transform_multiply (f_transform, f_transform, &rr_transform->f_transform);
pixman_f_transform_multiply (f_inverse, &rr_transform->f_inverse, f_inverse);
pixman_f_transform_multiply (f_transform, &rr_transform->f_transform, f_transform);
pixman_f_transform_multiply (f_inverse, f_inverse, &rr_transform->f_inverse);
}
#endif
/*