Refactor parsor memory usage

Add the bitmasks "fingers" and "added" to parsor memory, and extend
time handling to use a hold time and a forget time.

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

1 files changed, 31 insertions, 21 deletions

diff --git a/src/gestures.c b/src/gestures.c
index f5244aa..b6c3bf4 100644
--- a/src/gestures.c
+++ b/src/gestures.c
@@ -65,31 +65,41 @@ static void extract_movement(struct Gestures *gs, struct MTouch* mt)
         int npoint = bitcount(mt->mem.pointing);
         int nmove = bitcount(mt->mem.moving);
         int i;
-        if (nmove && mt->state.evtime >= mt->mem.move_time) {
-                for (i = 0; i < mt->state.nfinger; i++) {
-                        if (GETBIT(mt->mem.moving, i)) {
-                                gs->dx += mt->mem.dx[i];
-                                gs->dy += mt->mem.dy[i];
-                        }
-                }
-                gs->dx /= nmove;
-                gs->dy /= nmove;
-                memset(mt->mem.dx, 0, sizeof(mt->mem.dx));
-                memset(mt->mem.dy, 0, sizeof(mt->mem.dy));
+        float xm[DIM_FINGER], ym[DIM_FINGER];
+        float xmove = 0, ymove = 0;
+
+        if (!nmove || nmove != npoint)
+                return;
+
+        foreach_bit(i, mt->mem.moving) {
+                xm[i] = mt->mem.dx[i];
+                ym[i] = mt->mem.dy[i];
+                mt->mem.dx[i] = 0;
+                mt->mem.dy[i] = 0;
+                xmove += xm[i];
+                ymove += ym[i];
         }
-        if (gs->dx || gs->dy) {
-                if (npoint == 1)
+        xmove /= nmove;
+        ymove /= nmove;
+
+        if (nmove == 1) {
+                gs->dx = xmove;
+                gs->dy = ymove;
+                if (gs->dx || gs->dy)
                         SETBIT(gs->type, GS_MOVE);
-                if (npoint == 2) {
-                        if (gs->dx)
+        } else {
+                gs->dx = xmove;
+                gs->dy = ymove;
+                if (abs(gs->dx) > abs(gs->dy)) {
+                        if (nmove == 2)
                                 SETBIT(gs->type, GS_HSCROLL);
-                        if (gs->dy)
-                                SETBIT(gs->type, GS_VSCROLL);
-                }
-                if (npoint == 3) {
-                        if (gs->dx)
+                        if (nmove == 3)
                                 SETBIT(gs->type, GS_HSWIPE);
-                        if (gs->dy)
+                }
+                if (abs(gs->dy) > abs(gs->dx)) {
+                        if (nmove == 2)
+                                SETBIT(gs->type, GS_VSCROLL);
+                        if (nmove == 3)
                                 SETBIT(gs->type, GS_VSWIPE);
                 }
         }