JvDecoder::JvDecoder()
: inq_(20), inw_(0), inh_(0), rw_(-1), rh_(-1),
decompressing_(0), qh_(0), qt_(0)
{
/*
* Open server connection. Note that we
* create one connection per video window.
* We need to do this because the J-Video
* server caches the decoding state on
* a per socket basis. For instance, the
* server automatically reprograms the
* hardware scaling unit each time we issue
* a decompression request on a different socket.
*/
server_ = JvsOpen("", jvport());
if (server_ < 0)
return;
/*XXX width/height bogus*/
allocdma(pbase_[0].db, JVS_JPEG, 640, 480);
allocdma(pbase_[1].db, JVS_JPEG, 640, 480);
allocdma(pbase_[2].db, JVS_JPEG, 640, 480);
pbase_[0].next = 0;
pbase_[1].next = &pbase_[0];
pf_ = &pbase_[1];
pi_ = &pbase_[2];
/*
* If jvdriver already has an installed colormap, use those
* colors. Otherwise, set our default.
*/
if (setcolors(0) == 0)
setcolors(atoi(Tcl::instance().attr("jvColors")));
link(server_, TK_READABLE);
}
nemo_main()
{
permanent bool first=TRUE;
int argc = 1;
static char *argv[] = {"snaps2plot", NULL};
float size = 1.0;
extern string yapp_string;
setparams();
/* also: check env var S2PLOT_DEV */
#if 0
s2opend("/?", argc, argv);
#else
s2opendo(yapp_string);
#endif
s2swin((float)xrange[0], (float)xrange[1],
(float)yrange[0], (float)yrange[1],
(float)zrange[0], (float)zrange[1]);
s2box(s2box_opt,0,0,s2box_opt,0,0,s2box_opt,0,0);
s2lab(xlabel,ylabel,zlabel,input);
instr = stropen(input, "r");
get_history(instr);
compfuncs();
#ifdef COLOR
setcolors();
#endif
while (scansnap()) {
if (! trakflag) {
if (first) {
first = FALSE;
} else {
sleep(FRAMEDELAY);
plframe();
}
}
plotsnap();
warning("Can only do first selected snapshot");
s2show(1);
/* how to clear and advance to next snapshot */
}
}
int main()
{
struct tsdev *ts;
int fd;
calibration cal;
int cal_fd;
char cal_buffer[256];
char *tsdevice = NULL;
char *calfile = NULL;
int i;
signal(SIGSEGV, sig);
signal(SIGINT, sig);
signal(SIGTERM, sig);
if( (tsdevice = getenv("TSLIB_TSDEVICE")) != NULL ) {
ts = ts_open(tsdevice,0);
} else {
#if 0
#ifdef USE_INPUT_API
ts = ts_open("/dev/input/event0", 0);
#else
ts = ts_open("/dev/touchscreen/ucb1x00", 0);
#endif /* USE_INPUT_API */
#else
ts = ts_open("/dev/input/event2", 0);
#endif
}
if (!ts) {
perror("ts_open");
exit(1);
}
#if 0
if (ts_config(ts)) {
perror("ts_config");
exit(1);
}
#endif
if (open_framebuffer()) {
close_framebuffer();
exit(1);
}
close_framebuffer();
if (open_framebuffer()) {
close_framebuffer();
exit(1);
}
setcolors(0x48ff48,0x880000);
put_string(xres/2,yres/4,"TSLIB calibration utility",1);
put_string(xres/2,yres/4 + 20,"Touch crosshair to calibrate",1);
printf("xres = %d, yres = %d\n",xres,yres);
// Read a touchscreen event to clear the buffer
//getxy(ts, 0, 0);
// Now paint a crosshair on the upper left and start taking calibration
// data
put_cross(50,50,1);
getxy(ts, &cal.x[0], &cal.y[0]);
put_cross(50,50,0);
cal.xfb[0] = 50;
cal.yfb[0] = 50;
printf("Top left : X = %4d Y = %4d\n", cal.x[0], cal.y[0]);
put_cross(xres - 50, 50, 1);
getxy(ts, &cal.x[1], &cal.y[1]);
put_cross(xres - 50, 50, 0);
cal.xfb[1] = xres-50;
cal.yfb[1] = 50;
printf("Top right: X = %4d Y = %4d\n", cal.x[1], cal.y[1]);
put_cross(xres - 50, yres - 50, 1);
getxy(ts, &cal.x[2], &cal.y[2]);
put_cross(xres - 50, yres - 50, 0);
cal.xfb[2] = xres-50;
cal.yfb[2] = yres-50;
printf("Bot right: X = %4d Y = %4d\n", cal.x[2], cal.y[2]);
put_cross(50, yres - 50, 1);
getxy(ts, &cal.x[3], &cal.y[3]);
put_cross(50, yres - 50, 0);
cal.xfb[3] = 50;
cal.yfb[3] = yres-50;
printf("Bot left : X = %4d Y = %4d\n", cal.x[3], cal.y[3]);
put_cross(xres/2, yres/2, 1);
getxy(ts, &cal.x[4], &cal.y[4]);
put_cross(xres/2, yres/2, 0);
cal.xfb[4] = xres/2;
cal.yfb[4] = yres/2;
printf("Middle: X = %4d Y = %4d\n", cal.x[4], cal.y[4]);
if(perform_calibration(&cal)) {
printf("Calibration constants: ");
for(i=0;i<7;i++) printf("%d ",cal.a[i]);
printf("\n");
if( (calfile = getenv("TSLIB_CALIBFILE")) != NULL) {
cal_fd = open(calfile,O_CREAT|O_RDWR);
} else {
cal_fd = open("/etc/pointercal",O_CREAT|O_RDWR);
}
sprintf(cal_buffer,"%d %d %d %d %d %d %d\n",cal.a[1],cal.a[2],cal.a[0],cal.a[4],cal.a[5],cal.a[3],cal.a[6]);
write(cal_fd,cal_buffer,strlen(cal_buffer)+1);
close(cal_fd);
} else {
printf("Calibration failed.\n");
}
// while (1) {
// struct ts_sample samp;
//
// if (ts_read_raw(ts, &samp, 1) < 0) {
// perror("ts_read");
// exit(1);
// }
//
// printf("%ld.%06ld: %6d %6d %6d\n", samp.tv.tv_sec, samp.tv.tv_usec,
// samp.x, samp.y, samp.pressure);
// }
close_framebuffer();
}
