static void
processDPipe(struct display *d)
{
char *user, *pass, *args;
int cmd;
GTalk dpytalk;
#ifdef XDMCP
int ct, len;
ARRAY8 ca, cp, ha;
#endif
dpytalk.pipe = &d->pipe;
if (Setjmp(dpytalk.errjmp)) {
stopDisplay(d);
return;
}
gSet(&dpytalk);
if (!gRecvCmd(&cmd)) {
/* process already exited */
unregisterInput(d->pipe.fd.r);
return;
}
switch (cmd) {
case D_User:
d->userSess = gRecvInt();
d->userName = gRecvStr();
d->sessName = gRecvStr();
break;
case D_UnUser:
sessionDone(d);
if (d->sdRec.how) {
if (d->sdRec.force == SHUT_ASK &&
(anyUserLogins(-1) || d->allowShutdown == SHUT_ROOT))
{
gSendInt(True);
} else {
if (!sdRec.how || sdRec.force != SHUT_FORCE ||
!((d->allowNuke == SHUT_NONE && sdRec.uid != d->sdRec.uid) ||
(d->allowNuke == SHUT_ROOT && d->sdRec.uid)))
{
free(sdRec.osname);
sdRec = d->sdRec;
} else {
free(d->sdRec.osname);
}
d->sdRec.how = 0;
d->sdRec.osname = 0;
gSendInt(False);
}
} else {
gSendInt(False);
}
break;
case D_ReLogin:
user = gRecvStr();
pass = gRecvStr();
args = gRecvStr();
setNLogin(d, user, pass, args, 1);
free(args);
free(pass);
free(user);
break;
#ifdef XDMCP
case D_ChooseHost:
ca.data = (unsigned char *)gRecvArr(&len);
ca.length = (CARD16)len;
cp.data = (unsigned char *)gRecvArr(&len);
cp.length = (CARD16)len;
ct = gRecvInt();
ha.data = (unsigned char *)gRecvArr(&len);
ha.length = (CARD16)len;
registerIndirectChoice(&ca, &cp, ct, &ha);
XdmcpDisposeARRAY8(&ha);
XdmcpDisposeARRAY8(&cp);
XdmcpDisposeARRAY8(&ca);
break;
case D_RemoteHost:
free(d->remoteHost);
d->remoteHost = gRecvStr();
break;
#endif
case D_XConnOk:
startingServer = 0;
break;
default:
logError("Internal error: unknown D_* command %d\n", cmd);
stopDisplay(d);
break;
}
}
/*=====================app_main===========================*/
int app_main()
{
int i = 0;
void *capturebuffer0;
void *displaybuffer;
int counter = 0;
int ret = 0;
struct v4l2_format capture_fmt;
struct v4l2_format display_fmt;
int capture_chroma_offset, display_chroma_offset;
int capture_size;
int capture_fd, display_fd;
char outputname[15];
char stdname[15];
int capture_numbuffers = MAX_BUFFER, display_numbuffers = MAX_BUFFER;
for (i = 0; i < MAX_BUFFER; i++) {
capture_buff_info[i].start = NULL;
display_buff_info[i].start = NULL;
}
/* STEP1:
* Initialization section
* Initialize capture and display devices.
* Here one capture channel is opened
* Display channel is opened with the same standard that is detected at
* capture channel. same output name as input
* */
/* open capture channel 0 */
ret = initCapture(&capture_fd, &capture_numbuffers, &capture_fmt);
if (ret < 0) {
printf("Error in opening capture device for channel 0\n");
return ret;
}
printf(" Capture initialized\n");
/* open display channel */
if (display_enable) {
ret = initDisplay(&display_fd, &display_numbuffers, &display_fmt);
if (ret < 0) {
printf("Error in opening display device\n");
return ret;
}
printf(" Display initialized\n");
/* run section
* STEP2:
* Here display and capture channels are started for streaming. After
* this capture device will start capture frames into enqueued
* buffers and display device will start displaying buffers from
* the qneueued buffers */
/* start display */
ret = startDisplay(&display_fd);
if (ret < 0) {
printf("Error in starting display\n");
return ret;
}
printf(" display started \n");
}
/* start capturing for channel 0 */
ret = startCapture(&capture_fd);
if (ret < 0) {
printf("Error in starting capturing for channel 0\n");
return ret;
}
printf(" capture started \n");
/* calculate the offset from where chroma data will be stored for
* both capture and display */
capture_chroma_offset = kernel_buf_size/2;
//display_chroma_offset = display_fmt.fmt.pix.sizeimage / 2;
display_chroma_offset = kernel_buf_size/2;
capture_size = capture_fmt.fmt.pix.width * capture_fmt.fmt.pix.height;
/* One buffer is dequeued from display and capture channels.
* Capture buffer will be copied to display buffer.
* All two buffers are put back to respective channels.
* This sequence is repeated in loop.
* After completion of this loop, channels are stopped.
* */
printf("Going into loopback\n");
#if 0
sleep(10);
#else
while (1) {
/* get capturing buffer for channel 0 */
capturebuffer0 = getCaptureBuffer(&capture_fd);
if (NULL == capturebuffer0) {
printf("Error in get capture buffer for channel 0\n");
return ret;
}
/* get display buffer */
if (display_enable) {
displaybuffer = getDisplayBuffer(&display_fd);
if (NULL == displaybuffer) {
printf("Error in get display buffer\n");
return ret;
}
/* Copy Luma data from capture buffer to display buffer */
memcpy(displaybuffer, capturebuffer0, capture_size);
/* Copy chroma data from capture buffer to display buffer
* from the appropriate offsets in capture buffer and
* display buffer */
memcpy(displaybuffer + display_chroma_offset,
capturebuffer0 + capture_chroma_offset,
capture_size);
/* put output buffer into display queue */
ret = putDisplayBuffer(&display_fd, display_numbuffers,
displaybuffer);
if (ret < 0) {
printf("Error in put display buffer\n");
return ret;
}
}
if (save_frame && counter == 100) {
fwrite(capturebuffer0, 1, capture_size,
file_fp);
fwrite(capturebuffer0 + capture_chroma_offset,
1, capture_size,
file_fp);
fclose(file_fp);
}
/* put buffers in capture channels */
ret = putCaptureBuffer(&capture_fd, capture_numbuffers,
capturebuffer0);
if (ret < 0) {
printf("Error in put capture buffer for channel 0\n");
return ret;
}
counter++;
if (print_fn)
printf("time:%lu frame:%u\n", (unsigned long)time(NULL), counter);
if (stress_test && counter >= MAXLOOPCOUNT)
break;
}
#endif
printf("After sleep, stop capture/display\n");
/* stop display */
if (display_enable) {
ret = stopDisplay(&display_fd);
if (ret < 0) {
printf("Error in stopping display\n");
return ret;
}
}
/* stop capturing for channel 0 */
ret = stopCapture(&capture_fd);
if (ret < 0) {
printf("Error in stopping capturing for channel 0\n");
return ret;
}
/* close capture channel 0 */
ret = releaseCapture(&capture_fd, capture_numbuffers);
if (ret < 0) {
printf("Error in closing capture device\n");
return ret;
}
/* Free section
* Here channels for capture and display are close.
* */
/* open display channel */
if (display_enable) {
ret = releaseDisplay(&display_fd, display_numbuffers);
if (ret < 0) {
printf("Error in closing display device\n");
return ret;
}
}
return ret;
}
static void
stopInactiveDisplay(struct display *d)
{
if (d->status != remoteLogin && d->userSess < 0)
stopDisplay(d);
}