Introduce zoom, rotate and combo gestures

Introduce grail_mask bit functions, and add new gestures as separate
functions, referring to the same move model.

Signed-off-by: Henrik Rydberg <rydberg@bitmath.org>

1 files changed, 17 insertions, 25 deletions

diff --git a/src/touch-engine.c b/src/touch-engine.c
index 28b68da..3e6870e 100644
--- a/src/touch-engine.c
+++ b/src/touch-engine.c
@@ -34,40 +34,29 @@ static void tp_event(struct touch_dev *dev, const struct input_event *ev)
 
 static void update_frame(struct touch_frame *frame,
                          int slot, int active,
-                         const touch_prop_mask_t *mask,
+                         const grail_mask_t *mask,
                          const touch_prop_t *prop)
 {
-        struct touch *touch = &frame->touch[slot];
-        touch->active = active;
-        if (mask && prop) {
-                int i;
-                for (i = 0; i < DIM_TOUCH_PROP; i++)
-                        if (has_prop(mask, i))
-                                touch->prop[i] = prop[i];
-        }
+        struct touch *t = &frame->touch[slot];
+        int i;
+        t->active = active;
+        grail_mask_modify(frame->touches, slot, active);
+        if (mask && prop)
+                grail_mask_foreach(i, mask, DIM_TOUCH_PROP_BYTES)
+                        t->prop[i] = prop[i];
 }
 
 static void finalize_frame(struct touch_frame *frame, touch_time_t time)
 {
-        int i, last = -1;
-        frame->ntouch = 0;
-        frame->slot = -1;
-        for (i = 0; i < DIM_TOUCH_PROP; i++) {
-                frame->touch[i].next = -1;
-                if (frame->touch[i].active) {
-                        if (last < 0)
-                                frame->slot = i;
-                        else
-                                frame->touch[last].next = i;
-                        last = i;
-                        frame->ntouch++;
-                }
-        }
+        int i, nslot = 0;
+        grail_mask_foreach(i, frame->touches, DIM_TOUCH_BYTES)
+                frame->active[nslot++] = &frame->touch[i];
+        frame->nactive = nslot;
         frame->time = time;
 }
 
 static void tp_create(struct touch_dev *dev, int slot,
-                      const touch_prop_mask_t *mask, const touch_prop_t *prop)
+                      const grail_mask_t *mask, const touch_prop_t *prop)
 {
         struct touch_engine *engine = dev->priv;
         if (engine) {
@@ -77,7 +66,7 @@ static void tp_create(struct touch_dev *dev, int slot,
 }
 
 static void tp_modify(struct touch_dev *dev, int slot,
-                      const touch_prop_mask_t *mask, const touch_prop_t *prop)
+                      const grail_mask_t *mask, const touch_prop_t *prop)
 {
         struct touch_engine *engine = dev->priv;
         if (engine) {
@@ -117,7 +106,10 @@ void touch_engine_init(struct touch_engine *engine,
                                     const struct input_event *ev),
                        void *priv)
 {
+        int i;
         memset(engine, 0, sizeof(*engine));
+        for (i = 0; i < DIM_TOUCH; i++)
+                engine->frame.touch[i].slot = i;
         engine->event = event;
         engine->sync = sync;
         engine->priv = priv;