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Fixed gestureMulti. Disabled dollar gesture temporarily.

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This commit is contained in:
Jim Grandpre 2010-08-04 23:17:30 -04:00
parent c219144751
commit bcd4b4df6f
6 changed files with 188 additions and 140 deletions
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5
include/SDL_events.h
View file

@ -296,6 +296,8 @@ typedef struct SDL_TouchFingerEvent
Uint8 padding3;
Uint16 x;
Uint16 y;
Sint16 dx;
Sint16 dy;
Uint16 pressure;
} SDL_TouchFingerEvent;
@ -328,7 +330,8 @@ typedef struct SDL_MultiGestureEvent
float dDist;
float x; //currently 0...1. Change to screen coords?
float y;
Uint16 numFingers;
Uint16 padding;
} SDL_MultiGestureEvent;
typedef struct SDL_DollarGestureEvent

80
src/events/SDL_gesture.c
View file

@ -75,7 +75,7 @@ typedef struct {
Point res;
Point centroid;
TouchPoint gestureLast[MAXFINGERS];
int numDownFingers;
Uint16 numDownFingers;
int numDollarTemplates;
DollarTemplate dollarTemplate[MAXTEMPLATES];
@ -406,6 +406,7 @@ int SDL_SendGestureMulti(GestureTouch* touch,float dTheta,float dDist) {
event.mgesture.y = touch->centroid.y;
event.mgesture.dTheta = dTheta;
event.mgesture.dDist = dDist;
event.mgesture.numFingers = touch->numDownFingers;
return SDL_PushEvent(&event) > 0;
}
@ -445,17 +446,20 @@ void SDL_GestureProcessEvent(SDL_Event* event)
//Shouldn't be possible
if(inTouch == NULL) return;
//printf("@ (%i,%i) with res: (%i,%i)\n",(int)event->tfinger.x,
// (int)event->tfinger.y,
// (int)inTouch->res.x,(int)inTouch->res.y);
float x = ((float)event->tfinger.x)/(float)inTouch->res.x;
float y = ((float)event->tfinger.y)/(float)inTouch->res.y;
float x = ((float)event->tfinger.x)/inTouch->res.x;
float y = ((float)event->tfinger.y)/inTouch->res.y;
int j,empty = -1;
for(j = 0;j<inTouch->numDownFingers;j++) {
if(inTouch->gestureLast[j].f.id != event->tfinger.fingerId) continue;
//Finger Up
if(event->type == SDL_FINGERUP) {
inTouch->numDownFingers--;
#ifdef ENABLE_DOLLAR
if(inTouch->recording) {
inTouch->recording = SDL_FALSE;
Point path[DOLLARNPOINTS];
@ -487,16 +491,23 @@ void SDL_GestureProcessEvent(SDL_Event* event)
//Send Event
unsigned long gestureId = inTouch->dollarTemplate[bestTempl].hash;
SDL_SendGestureDollar(inTouch,gestureId,error);
printf("Dollar error: %f\n",error);
printf ("%s\n",);("Dollar error: %f\n",error);
}
}
inTouch->gestureLast[j] = inTouch->gestureLast[inTouch->numDownFingers];
j = -1;
break;
#endif
//inTouch->gestureLast[j] = inTouch->gestureLast[inTouch->numDownFingers];
if(inTouch->numDownFingers > 0) {
inTouch->centroid.x = (inTouch->centroid.x*(inTouch->numDownFingers+1)-
x)/inTouch->numDownFingers;
inTouch->centroid.y = (inTouch->centroid.y*(inTouch->numDownFingers+1)-
y)/inTouch->numDownFingers;
}
}
else if(event->type == SDL_FINGERMOTION) {
float dx = x - inTouch->gestureLast[j].f.p.x;
float dy = y - inTouch->gestureLast[j].f.p.y;
float dx = ((float)event->tfinger.dx)/(float)inTouch->res.x;
float dy = ((float)event->tfinger.dy)/(float)inTouch->res.y;
//printf("dx,dy: (%f,%f)\n",dx,dy);
#ifdef ENABLE_DOLLAR
DollarPath* path = &inTouch->gestureLast[j].dollarPath;
if(path->numPoints < MAXPATHSIZE) {
path->p[path->numPoints].x = x;
@ -504,19 +515,26 @@ void SDL_GestureProcessEvent(SDL_Event* event)
path->length += sqrt(dx*dx + dy*dy);
path->numPoints++;
}
#endif
Point lastP;
lastP.x = x - dx;
lastP.y = y - dy;
Point lastCentroid;
lastCentroid = inTouch->centroid;
inTouch->centroid.x += dx/inTouch->numDownFingers;
inTouch->centroid.y += dy/inTouch->numDownFingers;
if(inTouch->numDownFingers > 1) {
Point lv; //Vector from centroid to last x,y position
Point v; //Vector from centroid to current x,y position
lv = inTouch->gestureLast[j].cv;
//lv = inTouch->gestureLast[j].cv;
lv.x = lastP.x - lastCentroid.x;
lv.y = lastP.y - lastCentroid.y;
float lDist = sqrt(lv.x*lv.x + lv.y*lv.y);
//printf("lDist = %f\n",lDist);
v.x = x - inTouch->centroid.x;
v.y = y - inTouch->centroid.y;
inTouch->gestureLast[j].cv = v;
//inTouch->gestureLast[j].cv = v;
float Dist = sqrt(v.x*v.x+v.y*v.y);
// cos(dTheta) = (v . lv)/(|v| * |lv|)
@ -529,8 +547,9 @@ void SDL_GestureProcessEvent(SDL_Event* event)
float dDist = (Dist - lDist);
if(lDist == 0) {dDist = 0;dtheta = 0;} //To avoid impossible values
inTouch->gestureLast[j].dDist = dDist;
inTouch->gestureLast[j].dtheta = dtheta;
//inTouch->gestureLast[j].dDist = dDist;
//inTouch->gestureLast[j].dtheta = dtheta;
//printf("dDist = %f, dTheta = %f\n",dDist,dtheta);
//gdtheta = gdtheta*.9 + dtheta*.1;
@ -542,36 +561,39 @@ void SDL_GestureProcessEvent(SDL_Event* event)
SDL_SendGestureMulti(inTouch,dtheta,dDist);
}
else {
inTouch->gestureLast[j].dDist = 0;
inTouch->gestureLast[j].dtheta = 0;
inTouch->gestureLast[j].cv.x = 0;
inTouch->gestureLast[j].cv.y = 0;
//inTouch->gestureLast[j].dDist = 0;
//inTouch->gestureLast[j].dtheta = 0;
//inTouch->gestureLast[j].cv.x = 0;
//inTouch->gestureLast[j].cv.y = 0;
}
inTouch->gestureLast[j].f.p.x = x;
inTouch->gestureLast[j].f.p.y = y;
break;
//inTouch->gestureLast[j].f.p.x = x;
//inTouch->gestureLast[j].f.p.y = y;
//break;
//pressure?
}
}
if(j == inTouch->numDownFingers) {
//printf("Finger Down!!!\n");
if(event->type == SDL_FINGERDOWN) {
inTouch->numDownFingers++;
inTouch->centroid.x = (inTouch->centroid.x*(inTouch->numDownFingers - 1)+
x)/inTouch->numDownFingers;
inTouch->centroid.y = (inTouch->centroid.y*(inTouch->numDownFingers - 1)+
y)/inTouch->numDownFingers;
printf("Finger Down: (%f,%f). Centroid: (%f,%f\n",x,y,
inTouch->centroid.x,inTouch->centroid.y);
/*
inTouch->gestureLast[j].f.id = event->tfinger.fingerId;
inTouch->gestureLast[j].f.p.x = x;
inTouch->gestureLast[j].f.p.y = y;
inTouch->gestureLast[j].cv.x = 0;
inTouch->gestureLast[j].cv.y = 0;
*/
#ifdef ENABlE_DOLLAR
inTouch->gestureLast[j].dollarPath.length = 0;
inTouch->gestureLast[j].dollarPath.p[0].x = x;
inTouch->gestureLast[j].dollarPath.p[0].y = y;
inTouch->gestureLast[j].dollarPath.numPoints = 1;
#endif
}
}
}

32
src/events/SDL_touch.c
View file

@ -318,15 +318,17 @@ SDL_SendFingerDown(SDL_TouchID id, SDL_FingerID fingerid, SDL_bool down,
if(!touch) {
return SDL_TouchNotFoundError(id);
}
//scale to Integer coordinates
Uint16 x = (xin+touch->x_min)*(touch->xres)/(touch->native_xres);
Uint16 y = (yin+touch->y_min)*(touch->yres)/(touch->native_yres);
Uint16 pressure = (yin+touch->pressure_min)*(touch->pressureres)/(touch->native_pressureres);
if(down) {
SDL_Finger *finger = SDL_GetFinger(touch,fingerid);
SDL_Finger nf;
if(finger == NULL) {
SDL_Finger *finger = SDL_GetFinger(touch,fingerid);
if(down) {
if(finger == NULL) {
SDL_Finger nf;
nf.id = fingerid;
nf.x = x;
nf.y = y;
@ -337,8 +339,8 @@ SDL_SendFingerDown(SDL_TouchID id, SDL_FingerID fingerid, SDL_bool down,
nf.last_y = y;
nf.last_pressure = pressure;
nf.down = SDL_FALSE;
SDL_AddFinger(touch,&nf);
finger = &nf;
if(SDL_AddFinger(touch,&nf) < 0) return 0;
finger = SDL_GetFinger(touch,fingerid);
}
else if(finger->down) return 0;
if(xin < touch->x_min || yin < touch->y_min) return 0; //should defer if only a partial input
@ -358,7 +360,7 @@ SDL_SendFingerDown(SDL_TouchID id, SDL_FingerID fingerid, SDL_bool down,
return posted;
}
else {
if(SDL_DelFinger(touch,fingerid) < 0) return 0;
if(finger == NULL) {printf("Finger not found...\n");return 0;}
posted = 0;
if (SDL_GetEventState(SDL_FINGERUP) == SDL_ENABLE) {
SDL_Event event;
@ -367,6 +369,13 @@ SDL_SendFingerDown(SDL_TouchID id, SDL_FingerID fingerid, SDL_bool down,
event.tfinger.state = touch->buttonstate;
event.tfinger.windowID = touch->focus ? touch->focus->id : 0;
event.tfinger.fingerId = fingerid;
//I don't trust the coordinates passed on fingerUp
event.tfinger.x = finger->x;
event.tfinger.y = finger->y;
event.tfinger.dx = 0;
event.tfinger.dy = 0;
if(SDL_DelFinger(touch,fingerid) < 0) return 0;
posted = (SDL_PushEvent(&event) > 0);
}
return posted;
@ -381,8 +390,7 @@ SDL_SendTouchMotion(SDL_TouchID id, SDL_FingerID fingerid, int relative,
SDL_Touch *touch = SDL_GetTouch(id);
SDL_Finger *finger = SDL_GetFinger(touch,fingerid);
int posted;
float xrel;
float yrel;
Sint16 xrel, yrel;
float x_max = 0, y_max = 0;
if (!touch) {
@ -398,7 +406,7 @@ SDL_SendTouchMotion(SDL_TouchID id, SDL_FingerID fingerid, int relative,
}
if(finger == NULL || !finger->down) {
return SDL_SendFingerDown(id,fingerid,SDL_TRUE,x,y,pressure);
return SDL_SendFingerDown(id,fingerid,SDL_TRUE,xin,yin,pressurein);
} else {
/* the relative motion is calculated regarding the last position */
if (relative) {
@ -412,6 +420,7 @@ SDL_SendTouchMotion(SDL_TouchID id, SDL_FingerID fingerid, int relative,
if(pressurein < touch->pressure_min) pressure = finger->last_pressure;
xrel = x - finger->last_x;
yrel = y - finger->last_y;
//printf("xrel,yrel (%i,%i)\n",(int)xrel,(int)yrel);
}
/* Drop events that don't change state */
@ -460,6 +469,9 @@ SDL_SendTouchMotion(SDL_TouchID id, SDL_FingerID fingerid, int relative,
event.tfinger.fingerId = fingerid;
event.tfinger.x = x;
event.tfinger.y = y;
event.tfinger.dx = xrel;
event.tfinger.dy = yrel;
event.tfinger.pressure = pressure;
event.tfinger.state = touch->buttonstate;

8
src/video/x11/SDL_eventtouch.c
View file

@ -61,6 +61,14 @@ X11_InitTouch(_THIS)
touch.driverdata = SDL_malloc(sizeof(EventTouchData));
EventTouchData* data = (EventTouchData*)(touch.driverdata);
data->x = -1;
data->y = -1;
data->pressure = -1;
data->finger = 0;
data->up = SDL_FALSE;
printf("Opening device...\n");
//printf("New Touch - DataPtr: %i\n",data);
data->eventStream = open(tstr,

2
src/video/x11/SDL_x11events.c
View file

@ -439,8 +439,8 @@ X11_PumpEvents(_THIS)
if(data->pressure < 0) data->pressure = 0;
break;
case ABS_MISC:
if(ev[i].value == 0)
data->up = SDL_TRUE;
data->finger = ev[i].value;
break;
}
break;

9
touchTest/gestureSDLTest.c
View file

@ -414,11 +414,14 @@ int main(int argc, char* argv[])
*/
break;
case SDL_MULTIGESTURE:
/*
printf("Multi Gesture: x = %f, y = %f, dAng = %f, dR = %f\n",
event.mgesture.x,
event.mgesture.y,
event.mgesture.dTheta,
event.mgesture.dDist);
printf("MG: numDownTouch = %i\n",event.mgesture.numFingers);
*/
knob.p.x = event.mgesture.x;
knob.p.y = event.mgesture.y;
knob.ang += event.mgesture.dTheta;
@ -435,9 +438,9 @@ int main(int argc, char* argv[])
}
}
DrawScreen(screen,h);
for(i = 0; i < 256; i++)
if(keystat[i])
printf("Key %i down\n",i);
//for(i = 0; i < 256; i++)
// if(keystat[i])
// printf("Key %i down\n",i);
}
SDL_Quit();