diff options
| author | Daniel Stone <daniel@fooishbar.org> | 2011-03-02 14:50:29 +0000 |
|---|---|---|
| committer | Peter Hutterer <peter.hutterer@who-t.net> | 2011-09-29 12:23:51 +1000 |
| commit | cdf202250ef616f3b261db70da30e421ea59a630 (patch) | |
| tree | 790c6fe8864172663ac3589a8e3d5213a2709074 | |
| parent | 3463078f9697fad0ee11837d80e88889fc6a28a4 (diff) | |
Input: Convert transformAbsolute to work on doubles
Change transformAbsolute to use doubles internally.
Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
| -rw-r--r-- | dix/getevents.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/dix/getevents.c b/dix/getevents.c index 30044bae8..76e8a32ed 100644 --- a/dix/getevents.c +++ b/dix/getevents.c @@ -1026,32 +1026,37 @@ FreeEventList(InternalEvent *list, int num_events) * back into x/y. */ static void -transform(struct pixman_f_transform *m, int *x, int *y) +transform(struct pixman_f_transform *m, double *x, double *y) { struct pixman_f_vector p = {.v = {*x, *y, 1}}; pixman_f_transform_point(m, &p); - *x = lround(p.v[0]); - *y = lround(p.v[1]); + *x = p.v[0]; + *y = p.v[1]; } static void transformAbsolute(DeviceIntPtr dev, ValuatorMask *mask) { - int x, y, ox, oy; + double x, y, ox, oy; - ox = x = valuator_mask_isset(mask, 0) ? valuator_mask_get(mask, 0) : - dev->last.valuators[0]; - oy = y = valuator_mask_isset(mask, 1) ? valuator_mask_get(mask, 1) : - dev->last.valuators[1]; + if (valuator_mask_isset(mask, 0)) + ox = x = valuator_mask_get_double(mask, 0); + else + ox = x = dev->last.valuators[0] + dev->last.remainder[0]; + + if (valuator_mask_isset(mask, 1)) + oy = y = valuator_mask_get_double(mask, 1); + else + oy = y = dev->last.valuators[1] + dev->last.remainder[1]; transform(&dev->transform, &x, &y); if (valuator_mask_isset(mask, 0) || ox != x) - valuator_mask_set(mask, 0, x); + valuator_mask_set_double(mask, 0, x); if (valuator_mask_isset(mask, 1) || oy != y) - valuator_mask_set(mask, 1, y); + valuator_mask_set_double(mask, 1, y); } /** |