Optional XI2.1 support

This patchs adds optional XI2.1 support to utouch-frame. The
utouch/frame-xi2.h header contains helper functions equivalent
to utouch/frame-mtdev.h. In addition, the device-to-screen mapping
is handled via XEvents and optionally XIPropertyEvent. The latter
allows free device placement via xinput set-prop, useful in multi-
head setups, thanks to Chase Douglas. Touch frame events can be tested
using the utouch-frame-test-xi2 tool. Use --with-xi to enable.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/frame-impl.h b/src/frame-impl.h
index 38affe7..b072de9 100644
--- a/src/frame-impl.h
+++ b/src/frame-impl.h
@@ -33,6 +33,8 @@ struct utouch_frame_engine {
         struct utouch_surface *surface;
         struct utouch_frame **frames;
         struct utouch_frame *next;
+        int *evmap;
+        float map[9];
 };
 
 #endif