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touchpad: Make touchpad_get_delta() available from other files

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No functional changes.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2014-02-07 14:39:21 +10:00
parent 1f656f12cf
commit 3df87f4fe3
2 changed files with 4 additions and 1 deletions
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2
src/evdev-mt-touchpad.c
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@ -174,7 +174,7 @@ tp_estimate_delta(int x0, int x1, int x2, int x3)
return (x0 + x1 - x2 - x3) / 4; return (x0 + x1 - x2 - x3) / 4;
} }
static void void
tp_get_delta(struct tp_touch *t, double *dx, double *dy) tp_get_delta(struct tp_touch *t, double *dx, double *dy)
{ {
if (t->history.count < 4) { if (t->history.count < 4) {

3
src/evdev-mt-touchpad.h
View file

@ -102,4 +102,7 @@ struct tp_dispatch {
#define tp_for_each_touch(_tp, _t) \ #define tp_for_each_touch(_tp, _t) \
for (unsigned int _i = 0; _i < (_tp)->ntouches && (_t = &(_tp)->touches[_i]); _i++) for (unsigned int _i = 0; _i < (_tp)->ntouches && (_t = &(_tp)->touches[_i]); _i++)
void
tp_get_delta(struct tp_touch *t, double *dx, double *dy);
#endif #endif