sdl-ios-xcode: src/events/SDL

annotate src/events/SDL_gesture.c @ 4665:c2493813a2f4

Merged changes

author	Jim Grandpre <jim.tla@gmail.com>
date	Fri, 16 Jul 2010 20:53:44 -0400
parents	317a151b79ad 56a2d70de945
children	f8431f66613d

rev	line source
4657 eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	1 /*
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	3 Copyright (C) 1997-2010 Sam Lantinga
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	4
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	6 modify it under the terms of the GNU Lesser General Public
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	8 version 2.1 of the License, or (at your option) any later version.
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	9
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	13 Lesser General Public License for more details.
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	14
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	15 You should have received a copy of the GNU Lesser General Public
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	16 License along with this library; if not, write to the Free Software Founation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
4657 eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	17
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	18 Sam Lantinga
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	19 slouken@libsdl.org
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	20 */
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	21 #include "SDL_config.h"
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	22
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	23 /* General mouse handling code for SDL */
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	24
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	25 #include "SDL_events.h"
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	26 #include "SDL_events_c.h"
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	27 #include "SDL_gesture_c.h"
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	28
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	29 //TODO: Replace with malloc
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	30 #define MAXFINGERS 3
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	31 #define MAXTOUCHES 2
4658 454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	32 #define MAXTEMPLATES 4
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	33 #define MAXPATHSIZE 1024
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	34
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	35 #define DOLLARNPOINTS 64
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	36 #define DOLLARSIZE 256
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	37
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	38 //PHI = ((sqrt(5)-1)/2)
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	39 #define PHI 0.618033989
4657 eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	40
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	41 typedef struct {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	42 float x,y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	43 } Point;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	44
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	45
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	46 typedef struct {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	47 Point p;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	48 float pressure;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	49 int id;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	50 } Finger;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	51
4658 454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	52
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	53 typedef struct {
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	54 float length;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	55
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	56 int numPoints;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	57 Point p[MAXPATHSIZE];
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	58 } DollarPath;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	59
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	60
4657 eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	61 typedef struct {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	62 Finger f;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	63 Point cv;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	64 float dtheta,dDist;
4658 454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	65 DollarPath dollarPath;
4657 eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	66 } TouchPoint;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	67
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	68 typedef struct {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	69 Point path[DOLLARNPOINTS];
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	70 unsigned long hash;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	71 } DollarTemplate;
4657 eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	72
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	73 typedef struct {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	74 int id;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	75 Point res;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	76 Point centroid;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	77 TouchPoint gestureLast[MAXFINGERS];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	78 int numDownFingers;
4658 454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	79
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	80 int numDollarTemplates;
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	81 DollarTemplate dollarTemplate[MAXTEMPLATES];
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	82
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	83 SDL_bool recording;
4657 eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	84 } GestureTouch;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	85
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	86 GestureTouch gestureTouch[MAXTOUCHES];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	87 int numGestureTouches = 0;
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	88 SDL_bool recordAll;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	89
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	90 int SDL_RecordGesture(int touchId) {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	91 int i;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	92 if(touchId < 0) recordAll = SDL_TRUE;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	93 for(i = 0;i < numGestureTouches; i++) {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	94 if((touchId < 0) \|\| (gestureTouch[i].id == touchId)) {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	95 gestureTouch[i].recording = SDL_TRUE;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	96 if(touchId >= 0)
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	97 return 1;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	98 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	99 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	100 return (touchId < 0);
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	101 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	102
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	103 unsigned long SDL_HashDollar(Point* points) {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	104 unsigned long hash = 5381;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	105 int i;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	106 for(i = 0;i < DOLLARNPOINTS; i++) {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	107 hash = ((hash<<5) + hash) + points[i].x;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	108 hash = ((hash<<5) + hash) + points[i].y;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	109 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	110 return hash;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	111 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	112
4665 c2493813a2f4 Merged changes Jim Grandpre <jim.tla@gmail.com> parents: 4664 4663 diff changeset	113
c2493813a2f4 Merged changes Jim Grandpre <jim.tla@gmail.com> parents: 4664 4663 diff changeset	114 static int SaveTemplate(DollarTemplate templ, SDL_RWops src) {
4664 317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	115 if(src == NULL) return 0;
4665 c2493813a2f4 Merged changes Jim Grandpre <jim.tla@gmail.com> parents: 4664 4663 diff changeset	116
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	117 int i;
4664 317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	118
317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	119 //No Longer storing the Hash, rehash on load
317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	120 //fprintf(fp,"%lu ",templ->hash);
317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	121 //if(SDL_RWops.write(src,&(templ->hash),sizeof(templ->hash),1) != 1) return 0;
317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	122
317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	123 /*
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	124 for(i = 0;i < DOLLARNPOINTS;i++) {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	125 fprintf(fp,"%i %i ",(int)templ->path[i].x,(int)templ->path[i].y);
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	126 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	127 fprintf(fp,"\n");
4665 c2493813a2f4 Merged changes Jim Grandpre <jim.tla@gmail.com> parents: 4664 4663 diff changeset	128
4664 317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	129 */
317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	130 if(SDL_RWwrite(src,templ->path,sizeof(templ->path[0]),DOLLARNPOINTS) != DOLLARNPOINTS) return 0;
317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	131 return 1;
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	132 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	133
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	134
4664 317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	135 int SDL_SaveAllDollarTemplates(SDL_RWops *src) {
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	136 int i,j,rtrn = 0;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	137 for(i = 0; i < numGestureTouches; i++) {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	138 GestureTouch* touch = &gestureTouch[i];
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	139 for(j = 0;j < touch->numDollarTemplates; j++) {
4664 317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	140 rtrn += SaveTemplate(&touch->dollarTemplate[i],src);
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	141 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	142 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	143 return rtrn;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	144 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	145
4664 317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	146 int SDL_SaveDollarTemplate(unsigned long gestureId, SDL_RWops *src) {
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	147 int i,j;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	148 for(i = 0; i < numGestureTouches; i++) {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	149 GestureTouch* touch = &gestureTouch[i];
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	150 for(j = 0;j < touch->numDollarTemplates; j++) {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	151 if(touch->dollarTemplate[i].hash == gestureId) {
4664 317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	152 return SaveTemplate(&touch->dollarTemplate[i],src);
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	153 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	154 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	155 }
4663 56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	156 SDL_SetError("Unknown gestureId");
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	157 return -1;
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	158 }
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	159
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	160 //path is an already sampled set of points
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	161 //Returns the index of the gesture on success, or -1
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	162 static int SDL_AddDollarGesture(GestureTouch* inTouch,Point* path) {
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	163 if(inTouch == NULL) {
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	164 if(numGestureTouches == 0) return -1;
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	165 int i = 0;
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	166 for(i = 0;i < numGestureTouches; i++) {
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	167 inTouch = &gestureTouch[i];
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	168 if(inTouch->numDollarTemplates < MAXTEMPLATES) {
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	169 DollarTemplate *templ =
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	170 &inTouch->dollarTemplate[inTouch->numDollarTemplates];
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	171 memcpy(templ->path,path,DOLLARNPOINTS*sizeof(Point));
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	172 templ->hash = SDL_HashDollar(templ->path);
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	173 inTouch->numDollarTemplates++;
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	174 }
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	175 }
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	176 return inTouch->numDollarTemplates - 1;
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	177 }else if(inTouch->numDollarTemplates < MAXTEMPLATES) {
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	178 DollarTemplate *templ =
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	179 &inTouch->dollarTemplate[inTouch->numDollarTemplates];
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	180 memcpy(templ->path,path,DOLLARNPOINTS*sizeof(Point));
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	181 templ->hash = SDL_HashDollar(templ->path);
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	182 inTouch->numDollarTemplates++;
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	183 return inTouch->numDollarTemplates - 1;
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	184 }
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	185 return -1;
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	186 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	187
4664 317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	188 int SDL_LoadDollarTemplates(int touchId, SDL_RWops *src) {
317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	189 if(src == NULL) return 0;
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	190 int i,loaded = 0;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	191 GestureTouch *touch = NULL;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	192 if(touchId >= 0) {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	193 for(i = 0;i < numGestureTouches; i++)
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	194 if(gestureTouch[i].id == touchId)
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	195 touch = &gestureTouch[i];
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	196 if(touch == NULL) return -1;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	197 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	198
4664 317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	199 while(1) {
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	200 DollarTemplate templ;
4664 317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	201 //fscanf(fp,"%lu ",&templ.hash);
317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	202 /*
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	203 for(i = 0;i < DOLLARNPOINTS; i++) {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	204 int x,y;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	205 if(fscanf(fp,"%i %i ",&x,&y) != 2) break;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	206 templ.path[i].x = x;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	207 templ.path[i].y = y;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	208 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	209 fscanf(fp,"\n");
4664 317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	210 */
317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	211 if(SDL_RWread(src,templ.path,sizeof(templ.path[0]),DOLLARNPOINTS) < DOLLARNPOINTS) break;
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	212
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	213 if(touchId >= 0) {
4664 317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	214 printf("Adding loaded gesture to 1 touch\n");
317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	215 if(SDL_AddDollarGesture(touch,templ.path)) loaded++;
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	216 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	217 else {
4664 317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	218 printf("Adding to: %i touches\n",numGestureTouches);
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	219 for(i = 0;i < numGestureTouches; i++) {
4664 317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	220 touch = &gestureTouch[i];
317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	221 printf("Adding loaded gesture to + touches\n");
317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	222 //TODO: What if this fails?
317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	223 SDL_AddDollarGesture(touch,templ.path);
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	224 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	225 loaded++;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	226 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	227 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	228
4664 317a151b79ad Bug fixes, now using RWops instead of File pointers. Jim Grandpre <jim.tla@gmail.com> parents: 4659 diff changeset	229 return loaded;
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	230 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	231
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	232
4658 454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	233 float dollarDifference(Point* points,Point* templ,float ang) {
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	234 // Point p[DOLLARNPOINTS];
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	235 float dist = 0;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	236 Point p;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	237 int i;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	238 for(i = 0; i < DOLLARNPOINTS; i++) {
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	239 p.x = points[i].x * cos(ang) - points[i].y * sin(ang);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	240 p.y = points[i].x * sin(ang) + points[i].y * cos(ang);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	241 dist += sqrt((p.x-templ[i].x)*(p.x-templ[i].x)+
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	242 (p.y-templ[i].y)*(p.y-templ[i].y));
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	243 }
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	244 return dist/DOLLARNPOINTS;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	245
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	246 }
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	247
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	248 float bestDollarDifference(Point* points,Point* templ) {
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	249 //------------BEGIN DOLLAR BLACKBOX----------------//
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	250 //-TRANSLATED DIRECTLY FROM PSUDEO-CODE AVAILABLE AT-//
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	251 //-"http://depts.washington.edu/aimgroup/proj/dollar/"-//
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	252 float ta = -M_PI/4;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	253 float tb = M_PI/4;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	254 float dt = M_PI/90;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	255 float x1 = PHIta + (1-PHI)tb;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	256 float f1 = dollarDifference(points,templ,x1);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	257 float x2 = (1-PHI)ta + PHItb;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	258 float f2 = dollarDifference(points,templ,x2);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	259 while(abs(ta-tb) > dt) {
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	260 if(f1 < f2) {
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	261 tb = x2;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	262 x2 = x1;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	263 f2 = f1;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	264 x1 = PHIta + (1-PHI)tb;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	265 f1 = dollarDifference(points,templ,x1);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	266 }
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	267 else {
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	268 ta = x1;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	269 x1 = x2;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	270 f1 = f2;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	271 x2 = (1-PHI)ta + PHItb;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	272 f2 = dollarDifference(points,templ,x2);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	273 }
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	274 }
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	275 /*
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	276 if(f1 <= f2)
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	277 printf("Min angle (x1): %f\n",x1);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	278 else if(f1 > f2)
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	279 printf("Min angle (x2): %f\n",x2);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	280 */
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	281 return SDL_min(f1,f2);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	282 }
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	283
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	284 //DollarPath contains raw points, plus (possibly) the calculated length
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	285 int dollarNormalize(DollarPath path,Point *points) {
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	286 int i;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	287 //Calculate length if it hasn't already been done
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	288 if(path.length <= 0) {
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	289 for(i=1;i<path.numPoints;i++) {
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	290 float dx = path.p[i ].x -
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	291 path.p[i-1].x;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	292 float dy = path.p[i ].y -
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	293 path.p[i-1].y;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	294 path.length += sqrt(dxdx+dydy);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	295 }
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	296 }
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	297
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	298
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	299 //Resample
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	300 float interval = path.length/(DOLLARNPOINTS - 1);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	301 float dist = 0;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	302
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	303 int numPoints = 0;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	304 Point centroid; centroid.x = 0;centroid.y = 0;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	305 //printf("(%f,%f)\n",path.p[path.numPoints-1].x,path.p[path.numPoints-1].y);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	306 for(i = 1;i < path.numPoints;i++) {
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	307 float d = sqrt((path.p[i-1].x-path.p[i].x)*(path.p[i-1].x-path.p[i].x)+
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	308 (path.p[i-1].y-path.p[i].y)*(path.p[i-1].y-path.p[i].y));
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	309 //printf("d = %f dist = %f/%f\n",d,dist,interval);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	310 while(dist + d > interval) {
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	311 points[numPoints].x = path.p[i-1].x +
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	312 ((interval-dist)/d)*(path.p[i].x-path.p[i-1].x);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	313 points[numPoints].y = path.p[i-1].y +
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	314 ((interval-dist)/d)*(path.p[i].y-path.p[i-1].y);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	315 centroid.x += points[numPoints].x;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	316 centroid.y += points[numPoints].y;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	317 numPoints++;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	318
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	319 dist -= interval;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	320 }
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	321 dist += d;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	322 }
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	323 if(numPoints < 1) return 0;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	324 centroid.x /= numPoints;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	325 centroid.y /= numPoints;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	326
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	327 //printf("Centroid (%f,%f)",centroid.x,centroid.y);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	328 //Rotate Points so point 0 is left of centroid and solve for the bounding box
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	329 float xmin,xmax,ymin,ymax;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	330 xmin = centroid.x;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	331 xmax = centroid.x;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	332 ymin = centroid.y;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	333 ymax = centroid.y;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	334
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	335 float ang = atan2(centroid.y - points[0].y,
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	336 centroid.x - points[0].x);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	337
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	338 for(i = 0;i<numPoints;i++) {
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	339 float px = points[i].x;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	340 float py = points[i].y;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	341 points[i].x = (px - centroid.x)*cos(ang) -
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	342 (py - centroid.y)*sin(ang) + centroid.x;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	343 points[i].y = (px - centroid.x)*sin(ang) +
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	344 (py - centroid.y)*cos(ang) + centroid.y;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	345
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	346
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	347 if(points[i].x < xmin) xmin = points[i].x;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	348 if(points[i].x > xmax) xmax = points[i].x;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	349 if(points[i].y < ymin) ymin = points[i].y;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	350 if(points[i].y > ymax) ymax = points[i].y;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	351 }
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	352
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	353 //Scale points to DOLLARSIZE, and translate to the origin
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	354 float w = xmax-xmin;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	355 float h = ymax-ymin;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	356
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	357 for(i=0;i<numPoints;i++) {
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	358 points[i].x = (points[i].x - centroid.x)*DOLLARSIZE/w;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	359 points[i].y = (points[i].y - centroid.y)*DOLLARSIZE/h;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	360 }
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	361 return numPoints;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	362 }
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	363
4663 56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	364 float dollarRecognize(DollarPath path,int bestTempl,GestureTouch touch) {
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	365
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	366 Point points[DOLLARNPOINTS];
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	367 int numPoints = dollarNormalize(path,points);
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	368 int i;
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	369
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	370 int bestDiff = 10000;
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	371 *bestTempl = -1;
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	372 for(i = 0;i < touch->numDollarTemplates;i++) {
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	373 int diff = bestDollarDifference(points,touch->dollarTemplate[i].path);
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	374 if(diff < bestDiff) {bestDiff = diff; *bestTempl = i;}
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	375 }
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	376 return bestDiff;
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	377 }
56a2d70de945 Started trying to build gesture code for iPhone Sam Lantinga <slouken@libsdl.org> parents: 4659 diff changeset	378
4657 eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	379 int SDL_GestureAddTouch(SDL_Touch* touch) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	380 if(numGestureTouches >= MAXTOUCHES) return -1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	381
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	382 gestureTouch[numGestureTouches].res.x = touch->xres;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	383 gestureTouch[numGestureTouches].res.y = touch->yres;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	384 gestureTouch[numGestureTouches].numDownFingers = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	385
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	386 gestureTouch[numGestureTouches].res.x = touch->xres;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	387 gestureTouch[numGestureTouches].id = touch->id;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	388
4658 454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	389 gestureTouch[numGestureTouches].numDollarTemplates = 0;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	390
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	391 gestureTouch[numGestureTouches].recording = SDL_FALSE;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	392
4657 eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	393 numGestureTouches++;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	394 return 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	395 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	396
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	397 GestureTouch * SDL_GetGestureTouch(int id) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	398 int i;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	399 for(i = 0;i < numGestureTouches; i++) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	400 //printf("%i ?= %i\n",gestureTouch[i].id,id);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	401 if(gestureTouch[i].id == id) return &gestureTouch[i];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	402 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	403 return NULL;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	404 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	405
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	406 int SDL_SendGestureMulti(GestureTouch* touch,float dTheta,float dDist) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	407 SDL_Event event;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	408 event.mgesture.type = SDL_MULTIGESTURE;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	409 event.mgesture.touchId = touch->id;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	410 event.mgesture.x = touch->centroid.x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	411 event.mgesture.y = touch->centroid.y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	412 event.mgesture.dTheta = dTheta;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	413 event.mgesture.dDist = dDist;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	414 return SDL_PushEvent(&event) > 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	415 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	416
4658 454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	417 int SDL_SendGestureDollar(GestureTouch* touch,int gestureId,float error) {
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	418 SDL_Event event;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	419 event.dgesture.type = SDL_DOLLARGESTURE;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	420 event.dgesture.touchId = touch->id;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	421 /*
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	422 //TODO: Add this to give location of gesture?
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	423 event.mgesture.x = touch->centroid.x;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	424 event.mgesture.y = touch->centroid.y;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	425 */
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	426 event.dgesture.gestureId = gestureId;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	427 event.dgesture.error = error;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	428 return SDL_PushEvent(&event) > 0;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	429 }
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	430
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	431
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	432 int SDL_SendDollarRecord(GestureTouch* touch,int gestureId) {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	433 SDL_Event event;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	434 event.dgesture.type = SDL_DOLLARRECORD;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	435 event.dgesture.touchId = touch->id;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	436 event.dgesture.gestureId = gestureId;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	437
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	438 return SDL_PushEvent(&event) > 0;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	439 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	440
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	441
4657 eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	442 void SDL_GestureProcessEvent(SDL_Event* event)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	443 {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	444 if(event->type == SDL_FINGERMOTION \|\|
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	445 event->type == SDL_FINGERDOWN \|\|
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	446 event->type == SDL_FINGERUP) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	447 GestureTouch* inTouch = SDL_GetGestureTouch(event->tfinger.touchId);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	448
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	449 //Shouldn't be possible
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	450 if(inTouch == NULL) return;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	451
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	452
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	453 float x = ((float)event->tfinger.x)/inTouch->res.x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	454 float y = ((float)event->tfinger.y)/inTouch->res.y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	455 int j,empty = -1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	456
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	457 for(j = 0;j<inTouch->numDownFingers;j++) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	458 if(inTouch->gestureLast[j].f.id != event->tfinger.fingerId) continue;
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	459 //Finger Up
4657 eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	460 if(event->type == SDL_FINGERUP) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	461 inTouch->numDownFingers--;
4658 454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	462
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	463 if(inTouch->recording) {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	464 inTouch->recording = SDL_FALSE;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	465 Point path[DOLLARNPOINTS];
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	466 dollarNormalize(inTouch->gestureLast[j].dollarPath,path);
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	467 int index;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	468 if(recordAll) {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	469 index = SDL_AddDollarGesture(NULL,path);
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	470 int i;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	471 for(i = 0;i < numGestureTouches; i++)
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	472 gestureTouch[i].recording = SDL_FALSE;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	473 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	474 else {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	475 index = SDL_AddDollarGesture(inTouch,path);
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	476 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	477
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	478 if(index >= 0) {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	479 SDL_SendDollarRecord(inTouch,inTouch->dollarTemplate[index].hash);
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	480 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	481 else {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	482 SDL_SendDollarRecord(inTouch,-1);
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	483 }
4658 454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	484 }
4659 063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	485 else {
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	486 int bestTempl;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	487 float error;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	488 error = dollarRecognize(inTouch->gestureLast[j].dollarPath,
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	489 &bestTempl,inTouch);
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	490 if(bestTempl >= 0){
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	491 //Send Event
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	492 int gestureId = inTouch->dollarTemplate[bestTempl].hash;
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	493 SDL_SendGestureDollar(inTouch,gestureId,error);
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	494 printf("Dollar error: %f\n",error);
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	495 }
063b9455bd1a Added some files I had previosuly missed Jim Grandpre <jim.tla@gmail.com> parents: 4658 diff changeset	496 }
4657 eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	497 inTouch->gestureLast[j] = inTouch->gestureLast[inTouch->numDownFingers];
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	498 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	499 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	500 else {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	501 float dx = x - inTouch->gestureLast[j].f.p.x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	502 float dy = y - inTouch->gestureLast[j].f.p.y;
4658 454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	503 DollarPath* path = &inTouch->gestureLast[j].dollarPath;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	504 if(path->numPoints < MAXPATHSIZE) {
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	505 path->p[path->numPoints].x = x;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	506 path->p[path->numPoints].y = y;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	507 path->length += sqrt(dxdx + dydy);
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	508 path->numPoints++;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	509 }
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	510
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	511
4657 eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	512 inTouch->centroid.x += dx/inTouch->numDownFingers;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	513 inTouch->centroid.y += dy/inTouch->numDownFingers;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	514 if(inTouch->numDownFingers > 1) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	515 Point lv; //Vector from centroid to last x,y position
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	516 Point v; //Vector from centroid to current x,y position
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	517 lv = inTouch->gestureLast[j].cv;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	518 float lDist = sqrt(lv.xlv.x + lv.ylv.y);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	519 //printf("lDist = %f\n",lDist);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	520 v.x = x - inTouch->centroid.x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	521 v.y = y - inTouch->centroid.y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	522 inTouch->gestureLast[j].cv = v;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	523 float Dist = sqrt(v.xv.x+v.yv.y);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	524 // cos(dTheta) = (v . lv)/(\|v\| * \|lv\|)
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	525
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	526 //Normalize Vectors to simplify angle calculation
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	527 lv.x/=lDist;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	528 lv.y/=lDist;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	529 v.x/=Dist;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	530 v.y/=Dist;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	531 float dtheta = atan2(lv.xv.y - lv.yv.x,lv.xv.x + lv.yv.y);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	532
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	533 float dDist = (Dist - lDist);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	534 if(lDist == 0) {dDist = 0;dtheta = 0;} //To avoid impossible values
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	535 inTouch->gestureLast[j].dDist = dDist;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	536 inTouch->gestureLast[j].dtheta = dtheta;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	537
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	538 //printf("dDist = %f, dTheta = %f\n",dDist,dtheta);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	539 //gdtheta = gdtheta.9 + dtheta.1;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	540 //gdDist = gdDist.9 + dDist.1
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	541 //knob.r += dDist/numDownFingers;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	542 //knob.ang += dtheta;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	543 //printf("thetaSum = %f, distSum = %f\n",gdtheta,gdDist);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	544 //printf("id: %i dTheta = %f, dDist = %f\n",j,dtheta,dDist);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	545 SDL_SendGestureMulti(inTouch,dtheta,dDist);
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	546 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	547 else {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	548 inTouch->gestureLast[j].dDist = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	549 inTouch->gestureLast[j].dtheta = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	550 inTouch->gestureLast[j].cv.x = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	551 inTouch->gestureLast[j].cv.y = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	552 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	553 inTouch->gestureLast[j].f.p.x = x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	554 inTouch->gestureLast[j].f.p.y = y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	555 break;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	556 //pressure?
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	557 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	558 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	559
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	560 if(j == inTouch->numDownFingers) {
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	561 //printf("Finger Down!!!\n");
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	562 inTouch->numDownFingers++;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	563 inTouch->centroid.x = (inTouch->centroid.x*(inTouch->numDownFingers - 1)+
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	564 x)/inTouch->numDownFingers;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	565 inTouch->centroid.y = (inTouch->centroid.y*(inTouch->numDownFingers - 1)+
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	566 y)/inTouch->numDownFingers;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	567
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	568 inTouch->gestureLast[j].f.id = event->tfinger.fingerId;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	569 inTouch->gestureLast[j].f.p.x = x;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	570 inTouch->gestureLast[j].f.p.y = y;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	571 inTouch->gestureLast[j].cv.x = 0;
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	572 inTouch->gestureLast[j].cv.y = 0;
4658 454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	573
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	574 inTouch->gestureLast[j].dollarPath.length = 0;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	575 inTouch->gestureLast[j].dollarPath.p[0].x = x;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	576 inTouch->gestureLast[j].dollarPath.p[0].y = y;
454385d76845 Moved $1 Gestures into the SDL Library Jim Grandpre <jim.tla@gmail.com> parents: 4657 diff changeset	577 inTouch->gestureLast[j].dollarPath.numPoints = 1;
4657 eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	578 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	579 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	580 }
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	581
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	582 /* vi: set ts=4 sw=4 expandtab: */
eed063a0bf5b Moved Multi finger gesture recognition into the library. Jim Grandpre <jim.tla@gmail.com> parents: diff changeset	583

Mercurial > sdl-ios-xcode

annotate src/events/SDL_gesture.c @ 4665:c2493813a2f4