--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/touchTest/Iphone Test/touchTestIPhone2/touchTestIPhone/main.c	Sat Jul 31 01:24:50 2010 +0400
@@ -0,0 +1,422 @@
+#include <stdio.h>
+#include <SDL.h>
+#include <math.h>
+#include <SDL_touch.h>
+#include <SDL_gesture.h>
+
+#define PI 3.1415926535897
+#define PHI ((sqrt(5)-1)/2)
+#define WIDTH 640
+#define HEIGHT 480
+#define BPP 4
+#define DEPTH 32
+
+#define MAXFINGERS 5
+
+#define DOLLARNPOINTS 64
+#define DOLLARSIZE 256
+
+//MUST BE A POWER OF 2!
+#define EVENT_BUF_SIZE 256
+
+SDL_Event events[EVENT_BUF_SIZE];
+int eventWrite;
+
+int mousx,mousy;
+int keystat[512];
+int bstatus;
+
+int colors[7] = {0xFF,0xFF00,0xFF0000,0xFFFF00,0x00FFFF,0xFF00FF,0xFFFFFF};
+
+long index2fingerid[MAXFINGERS];
+int fingersDown;
+
+typedef struct {
+  float x,y;
+} Point;
+
+typedef struct {
+  Point p;
+  float pressure;
+  long id;
+} Finger;
+
+typedef struct {
+  Finger f;
+  Point cv;
+  float dtheta,dDist;
+} TouchPoint;
+
+ 
+typedef struct { //dt + s
+  Point d,s; //direction, start
+  int points;
+} Line;
+
+
+typedef struct {
+  float length;
+  
+  int numPoints;
+  Point p[EVENT_BUF_SIZE]; //To be safe
+} DollarPath;
+
+typedef struct {
+  float ang,r;
+  Point p;
+} Knob;
+
+Knob knob;
+
+Finger finger[MAXFINGERS];
+
+
+DollarPath dollarPath[MAXFINGERS];
+
+#define MAXTEMPLATES 4
+
+Point dollarTemplate[MAXTEMPLATES][DOLLARNPOINTS];
+int numDollarTemplates = 0;
+#ifdef DRAW_VECTOR_EST
+Line gestureLine[MAXFINGERS];
+#endif
+
+void handler (int sig)
+{
+  printf ("\exiting...(%d)\n", sig);
+  exit (0);
+}
+
+void perror_exit (char *error)
+{
+  perror (error);
+  handler (9);
+}
+
+
+void setpix(SDL_Surface *screen, int x, int y, unsigned int col)
+{
+  Uint32 *pixmem32;
+  Uint32 colour;
+  
+  if((unsigned)x > screen->w) return;
+  if((unsigned)y > screen->h) return;
+
+  pixmem32 = (Uint32*) screen->pixels  + y*screen->pitch/BPP + x;
+  
+  Uint8 r,g,b;
+  float a;
+  
+  memcpy(&colour,pixmem32,screen->format->BytesPerPixel);
+
+  SDL_GetRGB(colour,screen->format,&r,&g,&b); //Always returns 0xFFFFFF?
+  //r = 0;g = 0; b = 0;
+  a = (col>>24)&0xFF;
+  if(a == 0) a = 0xFF; //Hack, to make things easier.
+  a /= 0xFF;
+  r = r*(1-a) + ((col>>16)&0xFF)*(a);
+  g = g*(1-a) + ((col>> 8)&0xFF)*(a);
+  b = b*(1-a) + ((col>> 0)&0xFF)*(a);
+  colour = SDL_MapRGB( screen->format,r, g, b);
+  
+
+  *pixmem32 = colour;
+}
+
+void drawLine(SDL_Surface *screen,int x0,int y0,int x1,int y1,unsigned int col) {
+  float t;
+  for(t=0;t<1;t+=1.f/SDL_max(abs(x0-x1),abs(y0-y1)))
+    setpix(screen,x1+t*(x0-x1),y1+t*(y0-y1),col);
+}
+void drawCircle(SDL_Surface* screen,int x,int y,int r,unsigned int c)
+{
+
+  float a;
+  int tx;
+  
+  int ty;
+  float xr;
+  for(ty = -abs(r);ty <= abs(r);ty++) {
+    xr = sqrt(r*r - ty*ty);
+    if(r > 0) { //r > 0 ==> filled circle
+      for(tx=-xr+.5;tx<=xr-.5;tx++) {
+	setpix(screen,x+tx,y+ty,c);
+      }
+    }
+    else {
+      setpix(screen,x-xr+.5,y+ty,c);
+      setpix(screen,x+xr-.5,y+ty,c);
+    }
+  }
+}
+
+void drawKnob(SDL_Surface* screen,Knob k) {
+  //printf("Knob: x = %f, y = %f, r = %f, a = %f\n",k.p.x,k.p.y,k.r,k.ang);
+ 
+  drawCircle(screen,k.p.x*screen->w,k.p.y*screen->h,k.r*screen->w,0xFFFFFF);
+  
+  drawCircle(screen,(k.p.x+k.r/2*cos(k.ang))*screen->w,
+  	            (k.p.y+k.r/2*sin(k.ang))*screen->h,k.r/4*screen->w,0);
+  
+}
+
+void DrawScreen(SDL_Surface* screen, int h)
+{
+  int x, y, xm,ym,c;
+  if(SDL_MUSTLOCK(screen))
+    {                                              
+      if(SDL_LockSurface(screen) < 0) return;
+    }
+  for(y = 0; y < screen->h; y++ )
+    {
+      for( x = 0; x < screen->w; x++ )
+        {
+	  //setpixel(screen, x, y, (x*x)/256+3*y+h, (y*y)/256+x+h, h);
+	  //xm = (x+h)%screen->w;
+	  //ym = (y+h)%screen->w;
+	  //c = sin(h/256*2*PI)*x*y/screen->w/screen->h;
+	  //setpix(screen,x,y,255*sin(xm/screen->w*2*PI),sin(h/255*2*PI)*255*y/screen->h,c);
+	  setpix(screen,x,y,((x%255)<<16) + ((y%255)<<8) + (x+y)%255);
+	  //setpix(screen,x,y,0); //Inefficient, but that's okay...
+        }
+    }
+  drawCircle(screen,mousx,mousy,-30,0xFFFFFF);
+  drawLine(screen,0,0,screen->w,screen->h,0xFFFFFF);
+
+  int i;
+//draw Touch History
+  TouchPoint gestureLast[MAXFINGERS];
+  //printf("------------------Start History------------------\n");
+  for(i = 0;i < MAXFINGERS;i++) {
+    gestureLast[i].f.id = -1;
+  }
+  int numDownFingers = 0;
+  Point centroid;
+  float gdtheta,gdDist;
+
+
+  for(i = SDL_max(0,eventWrite - EVENT_BUF_SIZE);i < eventWrite;i++) {
+    SDL_Event event = events[i&(EVENT_BUF_SIZE-1)];
+    int age = eventWrite - i - 1;
+    if(event.type == SDL_FINGERMOTION || 
+       event.type == SDL_FINGERDOWN ||
+       event.type == SDL_FINGERUP) {
+      SDL_Touch* inTouch = SDL_GetTouch(event.tfinger.touchId);
+      //SDL_Finger* inFinger = SDL_GetFinger(inTouch,event.tfinger.fingerId);
+	    
+      float x = ((float)event.tfinger.x)/inTouch->xres;
+      float y = ((float)event.tfinger.y)/inTouch->yres;      
+      
+      //draw the touch:
+      
+      unsigned int c = colors[event.tfinger.touchId%7]; 
+      unsigned int col = 
+	((unsigned int)(c*(.1+.85))) |
+	((unsigned int)((0xFF*(1-((float)age)/EVENT_BUF_SIZE))) & 0xFF)<<24;
+
+      if(event.type == SDL_FINGERMOTION)
+	drawCircle(screen,x*screen->w,y*screen->h,5,col);
+      else if(event.type == SDL_FINGERDOWN)
+	drawCircle(screen,x*screen->w,y*screen->h,-10,col);     
+      /*      
+      //if there is a centroid, draw it
+      if(numDownFingers > 1) {
+	unsigned int col = 
+	  ((unsigned int)(0xFFFFFF)) |
+	  ((unsigned int)((0xFF*(1-((float)age)/EVENT_BUF_SIZE))) & 0xFF)<<24;
+	drawCircle(screen,centroid.x*screen->w,centroid.y*screen->h,5,col);
+      }
+      */
+    }
+  }
+  
+
+  for(i=0;i<MAXFINGERS;i++)
+    if(finger[i].p.x >= 0 && finger[i].p.y >= 0)
+      if(finger[i].pressure > 0)
+	drawCircle(screen,finger[i].p.x*screen->w,finger[i].p.y*screen->h
+		   ,20,0xFF*finger[i].pressure);
+      else
+	drawCircle(screen,finger[i].p.x*screen->w,finger[i].p.y*screen->h
+		   ,20,0xFF);
+
+
+  
+  keystat[32] = 0;
+  
+  if(knob.p.x > 0)
+    drawKnob(screen,knob);
+  
+  if(SDL_MUSTLOCK(screen)) SDL_UnlockSurface(screen);
+  
+  SDL_Flip(screen);
+}
+
+SDL_Surface* initScreen(int width,int height)
+{
+  return SDL_SetVideoMode(width, height, DEPTH,
+			  SDL_HWSURFACE | SDL_RESIZABLE);
+}
+
+int main(int argc, char* argv[])
+{  
+  SDL_Surface *screen;
+  SDL_Event event;
+  
+  knob.r = .1;
+  knob.ang = 0;
+  TouchPoint gestureLast[MAXFINGERS];
+  
+	int h,i;
+
+  memset(keystat,0,512*sizeof(keystat[0]));
+  if (SDL_Init(SDL_INIT_VIDEO) < 0 ) return 1;
+  
+  if (!(screen = initScreen(WIDTH,HEIGHT)))
+    {
+      SDL_Quit();
+      return 1;
+    }
+
+  while(!keystat[27]) {
+    //Poll SDL
+
+	  
+	  while(SDL_PollEvent(&event)) 
+      {
+	//Record _all_ events
+	events[eventWrite & (EVENT_BUF_SIZE-1)] = event;
+	eventWrite++;
+	
+	switch (event.type) 
+	  {
+	  case SDL_QUIT:
+	    keystat[27] = 1;
+	    break;
+	  case SDL_KEYDOWN:
+	    //printf("%i\n",event.key.keysym.sym);
+	    keystat[event.key.keysym.sym] = 1;
+	    if(event.key.keysym.sym == 32) {
+	      SDL_RecordGesture(-1);
+	    }
+	    else if(event.key.keysym.sym == 115) {
+	      SDL_RWops *src;
+	      //fp = fopen("gestureSave","w");
+	      src = SDL_RWFromFile("gestureSave","w");
+	      
+	      printf("Wrote %i templates\n",SDL_SaveAllDollarTemplates(src));
+	      //fclose(fp);
+	      SDL_RWclose(src);
+	    }
+	    else if(event.key.keysym.sym == 108) {
+	      SDL_RWops *src;
+	      //fp = fopen("gestureSave","r");
+	      src = SDL_RWFromFile("gestureSave","r");
+	      printf("Loaded: %i\n",SDL_LoadDollarTemplates(-1,src));
+	      //fclose(fp);
+	      SDL_RWclose(src);
+	    }
+	    
+	    //keypress = 1;
+	    break;
+	  case SDL_KEYUP:
+	      //printf("%i\n",event.key.keysym.sym);
+	    keystat[event.key.keysym.sym] = 0;
+	    //keypress = 1;
+	    break;
+	  case SDL_VIDEORESIZE:
+	    if (!(screen = initScreen(event.resize.w,
+				      event.resize.h)))
+	      {
+		SDL_Quit();
+		return 1;
+	      }
+	    break;
+	  case SDL_MOUSEMOTION:
+	    mousx = event.motion.x;
+	    mousy = event.motion.y; 
+	    break;
+	  case SDL_MOUSEBUTTONDOWN:
+	    bstatus |=  (1<<(event.button.button-1));
+	    break;
+	  case SDL_MOUSEBUTTONUP:
+	    bstatus &= ~(1<<(event.button.button-1));
+	    break;
+	  case SDL_FINGERMOTION:    
+	    ;
+	    printf("Finger: %li,x: %f, y: %f\n",event.tfinger.fingerId,
+	    	   event.tfinger.x,event.tfinger.y);
+	    SDL_Touch* inTouch = SDL_GetTouch(event.tfinger.touchId);
+	    //SDL_Finger* inFinger = SDL_GetFinger(inTouch,event.tfinger.fingerId);
+	   for(i = 0;i<MAXFINGERS;i++) 
+	      if(index2fingerid[i] == event.tfinger.fingerId) 	      
+		break;
+	    if(i == MAXFINGERS) break;  
+	    if(inTouch > 0) {
+	      finger[i].p.x = ((float)event.tfinger.x)/
+		inTouch->xres;
+	      finger[i].p.y = ((float)event.tfinger.y)/
+		inTouch->yres;
+	      
+	      finger[i].pressure = 
+		((float)event.tfinger.pressure)/inTouch->pressureres;
+	      /*
+	      printf("Finger: %i, Pressure: %f Pressureres: %i\n",
+		     event.tfinger.fingerId,
+		     finger[i].pressure,
+		     inTouch->pressureres);
+	      */
+	      //printf("Finger: %i, pressure: %f\n",event.tfinger.fingerId,
+	      //   finger[event.tfinger.fingerId].pressure);
+	    }
+	    
+	    break;	    
+	  case SDL_FINGERDOWN:
+	    printf("Finger: %li down - x: %f, y: %f\n",event.tfinger.fingerId,
+		   event.tfinger.x,event.tfinger.y);
+
+	    for(i = 0;i<MAXFINGERS;i++) 
+	      if(index2fingerid[i] == -1) {
+		index2fingerid[i] = event.tfinger.fingerId;
+		break;
+	      }
+	    finger[i].p.x = event.tfinger.x;
+	    finger[i].p.y = event.tfinger.y;
+	    break;
+	  case SDL_FINGERUP:
+	    printf("Figner: %li up - x: %f, y: %f\n",event.tfinger.fingerId,
+	           event.tfinger.x,event.tfinger.y);
+	    for(i = 0;i<MAXFINGERS;i++) 
+	      if(index2fingerid[i] == event.tfinger.fingerId) {
+		index2fingerid[i] = -1;
+		break;
+	      }
+	    finger[i].p.x = -1;
+	    finger[i].p.y = -1;
+	    break;
+	  case SDL_MULTIGESTURE:
+	    knob.p.x = event.mgesture.x;
+	    knob.p.y = event.mgesture.y;
+	    knob.ang += event.mgesture.dTheta;
+	    knob.r += event.mgesture.dDist;
+	    break;
+	  case SDL_DOLLARGESTURE:
+	    printf("Gesture %lu performed, error: %f\n",
+		   event.dgesture.gestureId,
+		   event.dgesture.error);
+	    break;
+	  case SDL_DOLLARRECORD:
+	    printf("Recorded gesture: %lu\n",event.dgesture.gestureId);
+	    break;
+	  }
+      }
+    DrawScreen(screen,h);    
+    for(i = 0; i < 256; i++) 
+      if(keystat[i]) 
+	printf("Key %i down\n",i);
+  }  
+  SDL_Quit();
+  
+  return 0;
+}
+