Added Test Directory. Touch input works in touchSimp for wacom bamboo fun on Ubuntu linux. Not yet integrated into library. Should support other touch devices and other linux distros, but not tested on anything else.

This commit is contained in:
Jim Grandpre 2010-05-24 23:44:24 -04:00
parent d12afdaedb
commit bc2e106a8b
11 changed files with 1138 additions and 0 deletions

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touchTest/makefile Normal file
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SDLTest : touchSimp.c touchPong.c
gcc touchSimp.c -o touchSimp `sdl-config --cflags --libs` -g
gcc touchPong.c -o touchPong `sdl-config --cflags --libs` -g

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SDLTest : touchSimp.c touchPong.c
gcc touchSimp.c -o touchSimp `sdl-config --cflags --libs` -gSDLTest :
gcc touchPong.c -o touchPong `sdl-config --cflags --libs` -g

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <dirent.h>
#include <linux/input.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/select.h>
#include <sys/time.h>
#include <termios.h>
#include <signal.h>
void handler (int sig)
{
printf ("\nexiting...(%d)\n", sig);
exit (0);
}
void perror_exit (char *error)
{
perror (error);
handler (9);
}
int main (int argc, char *argv[])
{
struct input_event ev[64];
int fd, rd, value, size = sizeof (struct input_event);
char name[256] = "Unknown";
char *device = NULL;
//Setup check
if (argv[1] == NULL){
printf("Please specify (on the command line) the path to the dev event interface device\n");
exit (0);
}
if ((getuid ()) != 0)
printf ("You are not root! This may not work...\n");
if (argc > 1)
device = argv[1];
//Open Device
if ((fd = open (device, O_RDONLY)) == -1)
printf ("%s is not a vaild device.\n", device);
//Print Device Name
ioctl (fd, EVIOCGNAME (sizeof (name)), name);
printf ("Reading From : %s (%s)\n", device, name);
while (1){
if ((rd = read (fd, ev, size * 64)) < size)
perror_exit ("read()");
printf("time: %i\n type: %X\n code: %X\n value: %i\n ",ev[0].time,ev[0].type,ev[0].value,ev[0].value);
value = ev[0].value;
if (value != ' ' && ev[1].value == 1 && ev[1].type == 1){ // Only read the key press event
printf ("Code[%d]\n", (ev[1].code));
}
}
return 0;
}

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <dirent.h>
#include <linux/input.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/select.h>
#include <sys/time.h>
#include <termios.h>
#include <signal.h>
void handler (int sig)
{
printf ("\nexiting...(%d)\n", sig);
exit (0);
}
void perror_exit (char *error)
{
perror (error);
handler (9);
}
int main (int argc, char *argv[])
{
struct input_event ev[64];
int fd, rd, value, size = sizeof (struct input_event);
char name[256] = "Unknown";
char *device = NULL;
//Setup check
if (argv[1] == NULL){
printf("Please specify (on the command line) the path to the dev event interface device\n");
exit (0);
}
if ((getuid ()) != 0)
printf ("You are not root! This may not work...\n");
if (argc > 1)
device = argv[1];
//Open Device
if ((fd = open (device, O_RDONLY)) == -1)
printf ("%s is not a vaild device.\n", device);
//Print Device Name
ioctl (fd, EVIOCGNAME (sizeof (name)), name);
printf ("Reading From : %s (%s)\n", device, name);
while (1){
if ((rd = read (fd, ev, size * 64)) < size)
perror_exit ("read()");
printf("time: %i\n type: %X\n code: %X\n value: %i\n ",ev[0].time,ev[0].type,ev[0].value,ev[0].value);
value = ev[0].value;
if (value != ' ' && ev[1].value == 1 && ev[1].type == 1){ // Only read the key press event
printf ("Code[%d]\n", (ev[1].code));
}
}
return 0;
}

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#include <stdio.h>
#include <SDL.h>
#include <math.h>
#include <linux/input.h>
#include <fcntl.h>
#define PI 3.1415926535897
#define WIDTH 640
#define HEIGHT 480
#define BPP 4
#define DEPTH 32
#define MAX_FINGERS 2
int mousx,mousy;
int keystat[512];
int bstatus;
typedef struct {
int x,y;
} Point;
Point finger[MAX_FINGERS];
//Pong Code
Point ball,ballv;
void handler (int sig)
{
printf ("\nexiting...(%d)\n", sig);
exit (0);
}
void perror_exit (char *error)
{
perror (error);
handler (9);
}
void setpix(SDL_Surface *screen, int x, int y, int col)
{
Uint32 *pixmem32;
Uint32 colour;
if((unsigned)x > screen->w) return;
if((unsigned)y > screen->h) return;
colour = SDL_MapRGB( screen->format, (col>>16)&0xFF, (col>>8)&0xFF, col&0xFF);
pixmem32 = (Uint32*) screen->pixels + y*screen->pitch/BPP + x;
*pixmem32 = colour;
}
void drawCircle(SDL_Surface* screen,int x,int y,int r,int c)
{
float a;
for(a=0;a<2*PI;a+=1.f/(float)r)
{
setpix(screen,(int)(x+r*cos(a)),(int)(y+r*sin(a)),c);
}
}
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);
}
}
drawCircle(screen,mousx,mousy,30,0xFFFFFF);
int i;
for(i=0;i<MAX_FINGERS;i++)
drawCircle(screen,finger[i].x,finger[i].y,30,0xFFFFFF);
drawCircle(screen,ball.x,ball.y,30,0xFF00FF);
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[])
{
struct input_event ev[64];
int fd, rd, value, size = sizeof (struct input_event);
char name[256] = "Unknown";
char *device = NULL;
//Setup check
if (argv[1] == NULL){
printf("Please specify (on the command line) the path to the dev event interface device\n");
exit (0);
}
if ((getuid ()) != 0)
printf ("You are not root! This may not work...\n");
if (argc > 1)
device = argv[1];
//Open Device
if ((fd = open (device, O_RDONLY)) == -1)
printf ("%s is not a vaild device.\n", device);
//Print Device Name
ioctl (fd, EVIOCGNAME (sizeof (name)), name);
printf ("Reading From : %s (%s)\n", device, name);
SDL_Surface *screen;
SDL_Event event;
int keypress = 0;
int h=0,s=1,i,j;
int tx,ty,curf=0;
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;
}
ball.x = screen->w/2;
ball.y = screen->h/2;
ballv.x = -3;
ballv.y = 1;
while(!keystat[27])
{
//Poll SDL
while(SDL_PollEvent(&event))
{
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;
//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;
}
}
//poll for Touch <- Goal: make this a case:
if ((rd = read (fd, ev, size * 64)) < size)
perror_exit ("read()");
//printf("time: %i\n type: %X\n code: %X\n value: %i\n ",
// ev->time,ev->type,ev->code,ev->value);
for (i = 0; i < rd / sizeof(struct input_event); i++)
switch (ev[i].type)
{
case EV_ABS:
if(ev[i].code == ABS_X)
tx = ev[i].value;
else if (ev[i].code == ABS_Y)
ty = ev[i].value;
else if (ev[i].code == ABS_MISC)
{
//printf("Misc:type: %X\n code: %X\n value: %i\n ",
// ev[i].type,ev[i].code,ev[i].value);
}
break;
case EV_MSC:
if(ev[i].code == MSC_SERIAL)
curf = ev[i].value;
break;
case EV_SYN:
curf -= 1;
if(tx >= 0)
finger[curf].x = tx;
if(ty >= 0)
finger[curf].y = ty;
//printf("Synched: %i tx: %i, ty: %i\n",curf,finger[curf].x,finger[curf].y);
tx = -1;
ty = -1;
break;
}
//Pong code
ball.x += ballv.x;
ball.y += ballv.y;
for(i=0;i<MAX_FINGERS;i++)
{
if(finger[i].x > 0 || finger[i].y > 0)
{
int d2 = (finger[i].x-ball.x)*(finger[i].x-ball.x) +
(finger[i].y-ball.y)*(finger[i].y-ball.y);
ballv.x += (50*(ball.x-finger[i].x))/d2;
ballv.y += (30*(ball.y-finger[i].y))/d2;
}
}
if((unsigned int)ball.x > screen->w){
ball.x = screen->w/2;
ball.y = screen->h/2;
ballv.x = -3;
ballv.y = 1;
}
if((unsigned int)ball.y > screen->h) ballv.y *= -1;
printf("(%i,%i)\n",ball.x,ball.y);
//And draw
DrawScreen(screen,h);
/*
for(i=0;i<512;i++)
if(keystat[i]) printf("%i\n",i);
printf("Buttons:%i\n",bstatus);
*/
}
SDL_Quit();
return 0;
}

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#include <stdio.h>
#include <SDL.h>
#include <math.h>
#include <linux/input.h>
#include <fcntl.h>
#define PI 3.1415926535897
#define WIDTH 640
#define HEIGHT 480
#define BPP 4
#define DEPTH 32
#define MAX_FINGERS 2
int mousx,mousy;
int keystat[512];
int bstatus;
//Pong Code
Point ball,ballv;
typedef struct {
int x,y;
} Point;
Point finger[MAX_FINGERS];
void handler (int sig)
{
printf ("\nexiting...(%d)\n", sig);
exit (0);
}
void perror_exit (char *error)
{
perror (error);
handler (9);
}
void setpix(SDL_Surface *screen, int x, int y, int col)
{
Uint32 *pixmem32;
Uint32 colour;
if((unsigned)x > screen->w) return;
if((unsigned)y > screen->h) return;
colour = SDL_MapRGB( screen->format, (col>>16)&0xFF, (col>>8)&0xFF, col&0xFF);
pixmem32 = (Uint32*) screen->pixels + y*screen->pitch/BPP + x;
*pixmem32 = colour;
}
void drawCircle(SDL_Surface* screen,int x,int y,int r,int c)
{
float a;
for(a=0;a<2*PI;a+=1.f/(float)r)
{
setpix(screen,(int)(x+r*cos(a)),(int)(y+r*sin(a)),c);
}
}
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);
}
}
drawCircle(screen,mousx,mousy,30,0xFFFFFF);
int i;
for(i=0;i<MAX_FINGERS;i++)
drawCircle(screen,finger[i].x,finger[i].y,30,0xFFFFFF);
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[])
{
struct input_event ev[64];
int fd, rd, value, size = sizeof (struct input_event);
char name[256] = "Unknown";
char *device = NULL;
//Setup check
if (argv[1] == NULL){
printf("Please specify (on the command line) the path to the dev event interface device\n");
exit (0);
}
if ((getuid ()) != 0)
printf ("You are not root! This may not work...\n");
if (argc > 1)
device = argv[1];
//Open Device
if ((fd = open (device, O_RDONLY)) == -1)
printf ("%s is not a vaild device.\n", device);
//Print Device Name
ioctl (fd, EVIOCGNAME (sizeof (name)), name);
printf ("Reading From : %s (%s)\n", device, name);
SDL_Surface *screen;
SDL_Event event;
int keypress = 0;
int h=0,s=1,i,j;
int tx,ty,curf=0;
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;
}
ball.x = screen->width()/2;
ball.y = screen->height()/2;
while(!keystat[27])
{
//Poll SDL
while(SDL_PollEvent(&event))
{
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;
//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;
}
}
//poll for Touch <- Goal: make this a case:
if ((rd = read (fd, ev, size * 64)) < size)
perror_exit ("read()");
//printf("time: %i\n type: %X\n code: %X\n value: %i\n ",
// ev->time,ev->type,ev->code,ev->value);
for (i = 0; i < rd / sizeof(struct input_event); i++)
switch (ev[i].type)
{
case EV_ABS:
if(ev[i].code == ABS_X)
tx = ev[i].value;
else if (ev[i].code == ABS_Y)
ty = ev[i].value;
else if (ev[i].code == ABS_MISC)
{
//printf("Misc:type: %X\n code: %X\n value: %i\n ",
// ev[i].type,ev[i].code,ev[i].value);
}
break;
case EV_MSC:
if(ev[i].code == MSC_SERIAL)
curf = ev[i].value;
break;
case EV_SYN:
curf -= 1;
if(tx >= 0)
finger[curf].x = tx;
if(ty >= 0)
finger[curf].y = ty;
//printf("Synched: %i tx: %i, ty: %i\n",curf,finger[curf].x,finger[curf].y);
tx = -1;
ty = -1;
break;
}
//And draw
DrawScreen(screen,h);
/*
for(i=0;i<512;i++)
if(keystat[i]) printf("%i\n",i);
printf("Buttons:%i\n",bstatus);
*/
}
SDL_Quit();
return 0;
}

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#include <stdio.h>
#include <SDL.h>
#include <math.h>
#include <linux/input.h>
#include <fcntl.h>
#define PI 3.1415926535897
#define WIDTH 640
#define HEIGHT 480
#define BPP 4
#define DEPTH 32
#define MAX_FINGERS 2
int mousx,mousy;
int keystat[512];
int bstatus;
typedef struct {
int x,y;
} Point;
Point finger[MAX_FINGERS];
void handler (int sig)
{
printf ("\nexiting...(%d)\n", sig);
exit (0);
}
void perror_exit (char *error)
{
perror (error);
handler (9);
}
void setpix(SDL_Surface *screen, int x, int y, int col)
{
Uint32 *pixmem32;
Uint32 colour;
if((unsigned)x > screen->w) return;
if((unsigned)y > screen->h) return;
colour = SDL_MapRGB( screen->format, (col>>16)&0xFF, (col>>8)&0xFF, col&0xFF);
pixmem32 = (Uint32*) screen->pixels + y*screen->pitch/BPP + x;
*pixmem32 = colour;
}
void drawCircle(SDL_Surface* screen,int x,int y,int r,int c)
{
float a;
for(a=0;a<2*PI;a+=1.f/(float)r)
{
setpix(screen,(int)(x+r*cos(a)),(int)(y+r*sin(a)),c);
}
}
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);
}
}
drawCircle(screen,mousx,mousy,30,0xFFFFFF);
int i;
for(i=0;i<MAX_FINGERS;i++)
drawCircle(screen,finger[i].x,finger[i].y,30,0xFFFFFF);
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[])
{
struct input_event ev[64];
int fd, rd, value, size = sizeof (struct input_event);
char name[256] = "Unknown";
char *device = NULL;
//Setup check
if (argv[1] == NULL){
printf("Please specify (on the command line) the path to the dev event interface device\n");
exit (0);
}
if ((getuid ()) != 0)
printf ("You are not root! This may not work...\n");
if (argc > 1)
device = argv[1];
//Open Device
if ((fd = open (device, O_RDONLY)) == -1)
printf ("%s is not a vaild device.\n", device);
//Print Device Name
ioctl (fd, EVIOCGNAME (sizeof (name)), name);
printf ("Reading From : %s (%s)\n", device, name);
SDL_Surface *screen;
SDL_Event event;
int keypress = 0;
int h=0,s=1,i,j;
int tx,ty,curf=0;
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))
{
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;
//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;
}
}
//poll for Touch <- Goal: make this a case:
if ((rd = read (fd, ev, size * 64)) < size)
perror_exit ("read()");
//printf("time: %i\n type: %X\n code: %X\n value: %i\n ",
// ev->time,ev->type,ev->code,ev->value);
for (i = 0; i < rd / sizeof(struct input_event); i++)
switch (ev[i].type)
{
case EV_ABS:
if(ev[i].code == ABS_X)
tx = ev[i].value;
else if (ev[i].code == ABS_Y)
ty = ev[i].value;
else if (ev[i].code == ABS_MISC)
{
//printf("Misc:type: %X\n code: %X\n value: %i\n ",
// ev[i].type,ev[i].code,ev[i].value);
}
break;
case EV_MSC:
if(ev[i].code == MSC_SERIAL)
curf = ev[i].value;
break;
case EV_SYN:
curf -= 1;
if(tx >= 0)
finger[curf].x = tx;
if(ty >= 0)
finger[curf].y = ty;
//printf("Synched: %i tx: %i, ty: %i\n",curf,finger[curf].x,finger[curf].y);
tx = -1;
ty = -1;
break;
}
//And draw
DrawScreen(screen,h);
/*
for(i=0;i<512;i++)
if(keystat[i]) printf("%i\n",i);
printf("Buttons:%i\n",bstatus);
*/
}
SDL_Quit();
return 0;
}

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#include <stdio.h>
#include <SDL.h>
#include <math.h>
#include <linux/input.h>
#include <fcntl.h>
#define PI 3.1415926535897
#define WIDTH 640
#define HEIGHT 480
#define BPP 4
#define DEPTH 32
#define MAX_FINGERS 2
int mousx,mousy;
int keystat[512];
int bstatus;
typedef struct {
int x,y;
} Point;
Point finger[MAX_FINGERS];
void handler (int sig)
{
printf ("\nexiting...(%d)\n", sig);
exit (0);
}
void perror_exit (char *error)
{
perror (error);
handler (9);
}
void setpix(SDL_Surface *screen, int x, int y, int col)
{
Uint32 *pixmem32;
Uint32 colour;
if((unsigned)x > screen->w) return;
if((unsigned)y > screen->h) return;
colour = SDL_MapRGB( screen->format, (col>>16)&0xFF, (col>>8)&0xFF, col&0xFF);
pixmem32 = (Uint32*) screen->pixels + y*screen->pitch/BPP + x;
*pixmem32 = colour;
}
void drawCircle(SDL_Surface* screen,int x,int y,int r,int c)
{
float a;
for(a=0;a<2*PI;a+=1.f/(float)r)
{
setpix(screen,(int)(x+r*cos(a)),(int)(y+r*sin(a)),c);
}
}
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);
}
}
drawCircle(screen,mousx,mousy,30,0xFFFFFF);
int i;
for(i=0;i<MAX_FINGERS;i++)
drawCircle(screen,finger[i].x,finger[i].y,30,0xFFFFFF);
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[])
{
struct input_event ev[64];
int fd, rd, value, size = sizeof (struct input_event);
char name[256] = "Unknown";
char *device = NULL;
//Setup check
if (argv[1] == NULL){
printf("Please specify (on the command line) the path to the dev event interface device\n");
exit (0);
}
if ((getuid ()) != 0)
printf ("You are not root! This may not work...\n");
if (argc > 1)
device = argv[1];
//Open Device
if ((fd = open (device, O_RDONLY)) == -1)
printf ("%s is not a vaild device.\n", device);
//Print Device Name
ioctl (fd, EVIOCGNAME (sizeof (name)), name);
printf ("Reading From : %s (%s)\n", device, name);
SDL_Surface *screen;
SDL_Event event;
int keypress = 0;
int h=0,s=1,i,j;
int tx,ty,curf=0;
Point ball,ballv;
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;
}
ball.x = screen->width()/2;
ball.y = screen->height()/2;
while(!keystat[27])
{
//Poll SDL
while(SDL_PollEvent(&event))
{
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;
//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;
}
}
//poll for Touch <- Goal: make this a case:
if ((rd = read (fd, ev, size * 64)) < size)
perror_exit ("read()");
//printf("time: %i\n type: %X\n code: %X\n value: %i\n ",
// ev->time,ev->type,ev->code,ev->value);
for (i = 0; i < rd / sizeof(struct input_event); i++)
switch (ev[i].type)
{
case EV_ABS:
if(ev[i].code == ABS_X)
tx = ev[i].value;
else if (ev[i].code == ABS_Y)
ty = ev[i].value;
else if (ev[i].code == ABS_MISC)
{
//printf("Misc:type: %X\n code: %X\n value: %i\n ",
// ev[i].type,ev[i].code,ev[i].value);
}
break;
case EV_MSC:
if(ev[i].code == MSC_SERIAL)
curf = ev[i].value;
break;
case EV_SYN:
curf -= 1;
if(tx >= 0)
finger[curf].x = tx;
if(ty >= 0)
finger[curf].y = ty;
//printf("Synched: %i tx: %i, ty: %i\n",curf,finger[curf].x,finger[curf].y);
tx = -1;
ty = -1;
break;
}
//And draw
DrawScreen(screen,h);
/*
for(i=0;i<512;i++)
if(keystat[i]) printf("%i\n",i);
printf("Buttons:%i\n",bstatus);
*/
}
SDL_Quit();
return 0;
}