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-rw-r--r--src/common.h15
-rw-r--r--src/gestures.c30
-rw-r--r--src/memory.c2
-rw-r--r--src/memory.h4
-rw-r--r--src/test.c13
5 files changed, 43 insertions, 21 deletions
diff --git a/src/common.h b/src/common.h
index 27082b7..1b4d007 100644
--- a/src/common.h
+++ b/src/common.h
@@ -61,4 +61,19 @@
61#define SETBIT(m, x) (m |= BITMASK(x)) 61#define SETBIT(m, x) (m |= BITMASK(x))
62#define CLEARBIT(m, x) (m &= ~BITMASK(x)) 62#define CLEARBIT(m, x) (m &= ~BITMASK(x))
63 63
64/* Count number of bits (Sean Eron Andersson's Bit Hacks) */
65static inline int bitcount(unsigned v)
66{
67 v -= ((v>>1) & 0x55555555);
68 v = (v&0x33333333) + ((v>>2) & 0x33333333);
69 return (((v + (v>>4)) & 0xF0F0F0F) * 0x1010101) >> 24;
70}
71
72/* Return index of first bit [0-31], -1 on zero */
73#define firstbit(v) (__builtin_ffs(v) - 1)
74
75/* boost-style foreach bit */
76#define foreach_bit(i, m) \
77 for (i = firstbit(m); i >= 0; i = firstbit((m) & (~0U << i + 1)))
78
64#endif 79#endif
diff --git a/src/gestures.c b/src/gestures.c
index 7346043..f44e6ab 100644
--- a/src/gestures.c
+++ b/src/gestures.c
@@ -58,7 +58,6 @@ static void extract_pointers(struct Gestures *gs, struct MTouch* mt)
58 58
59 if (mt->state.nfinger < 2) { 59 if (mt->state.nfinger < 2) {
60 mt->mem.pointing = mt->state.nfinger; 60 mt->mem.pointing = mt->state.nfinger;
61 mt->mem.npoint = mt->state.nfinger;
62 mt->mem.ybar = mt->caps.abs_position_y.maximum; 61 mt->mem.ybar = mt->caps.abs_position_y.maximum;
63 return; 62 return;
64 } 63 }
@@ -69,7 +68,6 @@ static void extract_pointers(struct Gestures *gs, struct MTouch* mt)
69 continue; 68 continue;
70 if (f[i].hw.position_y <= mt->mem.ybar) { 69 if (f[i].hw.position_y <= mt->mem.ybar) {
71 mt->mem.pointing = BITONES(mt->state.nfinger); 70 mt->mem.pointing = BITONES(mt->state.nfinger);
72 mt->mem.npoint = mt->state.nfinger;
73 return; 71 return;
74 } 72 }
75 } 73 }
@@ -77,15 +75,13 @@ static void extract_pointers(struct Gestures *gs, struct MTouch* mt)
77 } 75 }
78 76
79 mt->mem.pointing = 0; 77 mt->mem.pointing = 0;
80 mt->mem.npoint = 0;
81 mt->mem.ybar = mt->caps.yclick; 78 mt->mem.ybar = mt->caps.yclick;
82 for (i = 0; i < mt->state.nfinger; i++) { 79 for (i = 0; i < mt->state.nfinger; i++) {
83 if (f[i].hw.position_y > mt->caps.yclick) 80 if (f[i].hw.position_y > mt->caps.yclick)
84 continue; 81 continue;
85 if (!mt->mem.npoint || f[i].hw.position_y > mt->mem.ybar) 82 if (!mt->mem.pointing || f[i].hw.position_y > mt->mem.ybar)
86 mt->mem.ybar = f[i].hw.position_y; 83 mt->mem.ybar = f[i].hw.position_y;
87 SETBIT(mt->mem.pointing, i); 84 SETBIT(mt->mem.pointing, i);
88 mt->mem.npoint++;
89 } 85 }
90 86
91} 87}
@@ -97,7 +93,6 @@ static void extract_movement(struct Gestures *gs, struct MTouch* mt)
97 int dx, dy, xcut, ycut, xmax = 0, ymax = 0; 93 int dx, dy, xcut, ycut, xmax = 0, ymax = 0;
98 94
99 mt->mem.moving = 0; 95 mt->mem.moving = 0;
100 mt->mem.nmove = 0;
101 96
102 if (mt->state.nfinger == 0) 97 if (mt->state.nfinger == 0)
103 return; 98 return;
@@ -128,22 +123,21 @@ static void extract_movement(struct Gestures *gs, struct MTouch* mt)
128 if (!GETBIT(mt->mem.pointing, i)) 123 if (!GETBIT(mt->mem.pointing, i))
129 continue; 124 continue;
130 if (abs(mt->mem.dx[i]) > xcut || 125 if (abs(mt->mem.dx[i]) > xcut ||
131 abs(mt->mem.dy[i]) > ycut) { 126 abs(mt->mem.dy[i]) > ycut)
132 SETBIT(mt->mem.moving, i); 127 SETBIT(mt->mem.moving, i);
133 mt->mem.nmove++;
134 }
135 } 128 }
136 129
137 /* accumulate all movement during delay */ 130 /* accumulate all movement during delay */
138 if (mt->mem.nmove && mt->state.evtime >= mt->mem.move_time) { 131 if (mt->mem.moving && mt->state.evtime >= mt->mem.move_time) {
132 int nmove = bitcount(mt->mem.moving);
139 for (i = 0; i < mt->state.nfinger; i++) { 133 for (i = 0; i < mt->state.nfinger; i++) {
140 if (GETBIT(mt->mem.moving, i)) { 134 if (GETBIT(mt->mem.moving, i)) {
141 gs->dx += mt->mem.dx[i]; 135 gs->dx += mt->mem.dx[i];
142 gs->dy += mt->mem.dy[i]; 136 gs->dy += mt->mem.dy[i];
143 } 137 }
144 } 138 }
145 gs->dx /= mt->mem.nmove; 139 gs->dx /= nmove;
146 gs->dy /= mt->mem.nmove; 140 gs->dy /= nmove;
147 memset(mt->mem.dx, 0, sizeof(mt->mem.dx)); 141 memset(mt->mem.dx, 0, sizeof(mt->mem.dx));
148 memset(mt->mem.dy, 0, sizeof(mt->mem.dy)); 142 memset(mt->mem.dy, 0, sizeof(mt->mem.dy));
149 } 143 }
@@ -153,10 +147,11 @@ static void extract_movement(struct Gestures *gs, struct MTouch* mt)
153static void extract_buttons(struct Gestures *gs, struct MTouch* mt) 147static void extract_buttons(struct Gestures *gs, struct MTouch* mt)
154{ 148{
155 unsigned btdata = mt->state.button & BITONES(DIM_BUTTON); 149 unsigned btdata = mt->state.button & BITONES(DIM_BUTTON);
150 int npoint = bitcount(mt->mem.pointing);
156 if (mt->state.button == BITMASK(MT_BUTTON_LEFT)) { 151 if (mt->state.button == BITMASK(MT_BUTTON_LEFT)) {
157 if (mt->mem.npoint == 2) 152 if (npoint == 2)
158 btdata = BITMASK(MT_BUTTON_RIGHT); 153 btdata = BITMASK(MT_BUTTON_RIGHT);
159 if (mt->mem.npoint == 3) 154 if (npoint == 3)
160 btdata = BITMASK(MT_BUTTON_MIDDLE); 155 btdata = BITMASK(MT_BUTTON_MIDDLE);
161 } 156 }
162 if (mt->state.button != mt->prev_state.button) { 157 if (mt->state.button != mt->prev_state.button) {
@@ -170,18 +165,19 @@ static void extract_buttons(struct Gestures *gs, struct MTouch* mt)
170 165
171static void extract_type(struct Gestures *gs, struct MTouch* mt) 166static void extract_type(struct Gestures *gs, struct MTouch* mt)
172{ 167{
168 int npoint = bitcount(mt->mem.pointing);
173 if (gs->btmask) 169 if (gs->btmask)
174 SETBIT(gs->type, GS_BUTTON); 170 SETBIT(gs->type, GS_BUTTON);
175 if (gs->dx || gs->dy) { 171 if (gs->dx || gs->dy) {
176 if (mt->mem.npoint == 1) 172 if (npoint == 1)
177 SETBIT(gs->type, GS_MOVE); 173 SETBIT(gs->type, GS_MOVE);
178 if (mt->mem.npoint == 2) { 174 if (npoint == 2) {
179 if (gs->dx) 175 if (gs->dx)
180 SETBIT(gs->type, GS_HSCROLL); 176 SETBIT(gs->type, GS_HSCROLL);
181 if (gs->dy) 177 if (gs->dy)
182 SETBIT(gs->type, GS_VSCROLL); 178 SETBIT(gs->type, GS_VSCROLL);
183 } 179 }
184 if (mt->mem.npoint == 3) { 180 if (npoint == 3) {
185 if (gs->dx) 181 if (gs->dx)
186 SETBIT(gs->type, GS_HSWIPE); 182 SETBIT(gs->type, GS_HSWIPE);
187 if (gs->dy) 183 if (gs->dy)
diff --git a/src/memory.c b/src/memory.c
index 15b483c..0e2edba 100644
--- a/src/memory.c
+++ b/src/memory.c
@@ -32,8 +32,6 @@ void output_memory(const struct Memory *m)
32 xf86Msg(X_INFO, "btdata: %04x\n", m->btdata); 32 xf86Msg(X_INFO, "btdata: %04x\n", m->btdata);
33 xf86Msg(X_INFO, "pointing: %04x\n", m->pointing); 33 xf86Msg(X_INFO, "pointing: %04x\n", m->pointing);
34 xf86Msg(X_INFO, "moving: %04x\n", m->moving); 34 xf86Msg(X_INFO, "moving: %04x\n", m->moving);
35 xf86Msg(X_INFO, "npoint: %d\n", m->npoint);
36 xf86Msg(X_INFO, "ybar: %d\n", m->ybar); 35 xf86Msg(X_INFO, "ybar: %d\n", m->ybar);
37 xf86Msg(X_INFO, "move_time: %lld\n", m->move_time); 36 xf86Msg(X_INFO, "move_time: %lld\n", m->move_time);
38 xf86Msg(X_INFO, "nmove: %d\n", m->nmove);
39} 37}
diff --git a/src/memory.h b/src/memory.h
index 81cdae0..23d2ce6 100644
--- a/src/memory.h
+++ b/src/memory.h
@@ -26,9 +26,9 @@
26 26
27struct Memory { 27struct Memory {
28 unsigned btdata, pointing, moving; 28 unsigned btdata, pointing, moving;
29 int npoint, ybar; 29 int ybar;
30 mstime_t move_time; 30 mstime_t move_time;
31 int dx[DIM_FINGER], dy[DIM_FINGER], nmove; 31 int dx[DIM_FINGER], dy[DIM_FINGER];
32 32
33 33
34 34
diff --git a/src/test.c b/src/test.c
index e9b8ce3..fc16201 100644
--- a/src/test.c
+++ b/src/test.c
@@ -19,10 +19,23 @@
19 * 19 *
20 **************************************************************************/ 20 **************************************************************************/
21 21
22#include "common.h"
22#include <stdio.h> 23#include <stdio.h>
23#include <time.h> 24#include <time.h>
24 25
26static void print_bitfield(unsigned m)
27{
28 int i;
29
30 printf("%d\n", m);
31 foreach_bit(i, m)
32 printf("%d %d\n", i, 1 << i);
33}
34
25int main(int argc, char *argv[]) 35int main(int argc, char *argv[])
26{ 36{
37 print_bitfield(5);
38 print_bitfield(126);
39 print_bitfield(0);
27 return 0; 40 return 0;
28} 41}
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