diff options
Diffstat (limited to 'xorg-server/dix/getevents.c')
| -rw-r--r-- | xorg-server/dix/getevents.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/xorg-server/dix/getevents.c b/xorg-server/dix/getevents.c index e0ef18365..be369ec72 100644 --- a/xorg-server/dix/getevents.c +++ b/xorg-server/dix/getevents.c @@ -1187,16 +1187,33 @@ static void transformAbsolute(DeviceIntPtr dev, ValuatorMask *mask) { double x, y, ox, oy; + int has_x, has_y; + + has_x = valuator_mask_fetch_double(mask, 0, &ox); + has_y = valuator_mask_fetch_double(mask, 1, &oy); + + if (!has_x && !has_y) + return; + + if (!has_x || !has_y) { + struct pixman_f_transform invert; + + /* undo transformation from last event */ + ox = dev->last.valuators[0]; + oy = dev->last.valuators[1]; + + pixman_f_transform_invert(&invert, &dev->transform); + transform(&invert, &ox, &oy); + + x = ox; + y = oy; + } if (valuator_mask_isset(mask, 0)) ox = x = valuator_mask_get_double(mask, 0); - else - ox = x = dev->last.valuators[0]; if (valuator_mask_isset(mask, 1)) oy = y = valuator_mask_get_double(mask, 1); - else - oy = y = dev->last.valuators[1]; transform(&dev->transform, &x, &y); |