/*-----------------------------------------------------------------------------------*/
static void
update_area(u8_t x, u8_t y, u8_t w, u8_t h)
{
u8_t i;
if(h == 0 || w == 0) {
return;
}
/* Update for all active VNC connections. */
for(i = 0; i < CTK_VNCSERVER_CONF_NUMCONNS; ++i) {
if(conns[i].state != VNC_DEALLOCATED) {
vnc_out_update_area(&conns[i],
x, y, w, h);
}
}
}
/*-----------------------------------------------------------------------------------*/
static uint8_t
vnc_read_data(CC_REGISTER_ARG struct vnc_server_state *vs)
{
uint8_t *appdata;
uint16_t len;
struct rfb_fb_update_request *req;
/* uint8_t niter;*/
len = uip_datalen();
appdata = (uint8_t *)uip_appdata;
/* First, check if there is data left to discard since last read. */
if(vs->readlen > 0) {
appdata += vs->readlen;
if(len > vs->readlen) {
len -= vs->readlen;
vs->readlen = 0;
} else {
vs->readlen -= len;
len = 0;
}
}
if(vs->readlen != 0) {
return 1;
}
/* All data read and ignored, parse next message. */
/* for(niter = 32; niter > 0 && len > 0; --niter) {*/
while(len > 0) {
switch(vs->state) {
case VNC_VERSION:
case VNC_VERSION2:
PRINTF(("Read in version\n"));
/* Receive and ignore client version string (12 bytes). */
vs->state = VNC_AUTH;
vs->readlen = 12;
break;
case VNC_AUTH:
case VNC_AUTH2:
PRINTF(("Read in auth \n"));
/* Read and discard initialization from client (1 byte). */
vs->readlen = 1;
vs->state = VNC_INIT;
break;
case VNC_INIT:
case VNC_INIT2:
PRINTF(("Read in init \n"));
vs->readlen = 0;
vs->state = VNC_RUNNING;
case VNC_RUNNING:
/* Handle all client events. */
switch(*appdata) {
case RFB_SET_PIXEL_FORMAT:
PRINTF(("Set pixel format\n"));
vs->readlen = sizeof(struct rfb_set_pixel_format);
/* Check if client runs with BGR233 format. If not, abort the
connection. */
/* XXX: not implemented yet. */
break;
case RFB_FIX_COLORMAP_ENTRIES:
PRINTF(("Fix colormap entries\n"));
return 0;
case RFB_SET_ENCODINGS:
PRINTF(("Set encodings\n"));
vs->readlen = sizeof(struct rfb_set_encoding);
vs->readlen += uip_htons(((struct rfb_set_encoding *)appdata)->encodings) * 4;
/* Make sure that client supports the encodings we use. */
/* XXX: not implemented yet. */
break;
case RFB_FB_UPDATE_REQ:
PRINTF(("Update request\n"));
vs->update_requested = 1;
vs->readlen = sizeof(struct rfb_fb_update_request);
/* blank the screen initially */
req = (struct rfb_fb_update_request *)appdata;
if(req->incremental == 0) {
/* vs->sendmsg = SEND_BLANK;*/
vnc_out_update_area(vs, 0, 0, vs->w, vs->h);
}
break;
case RFB_KEY_EVENT:
vs->readlen = sizeof(struct rfb_key_event);
vnc_key_event(vs);
break;
case RFB_POINTER_EVENT:
vs->readlen = sizeof(struct rfb_pointer_event);
vnc_pointer_event(vs);
break;
case RFB_CLIENT_CUT_TEXT:
PRINTF(("Client cut text\n"));
if(((struct rfb_client_cut_text *)appdata)->len[0] != 0 ||
((struct rfb_client_cut_text *)appdata)->len[1] != 0) {
return 0;
}
vs->readlen = sizeof(struct rfb_client_cut_text) +
(((struct rfb_client_cut_text *)appdata)->len[2] << 8) +
((struct rfb_client_cut_text *)appdata)->len[3];
/* return 0;*/
break;
default:
PRINTF(("Unknown message %d\n", *appdata));
return 0;
}
break;
default:
return 0;
}
if(vs->readlen > 0) {
if(len > vs->readlen) {
len -= vs->readlen;
appdata += vs->readlen;
vs->readlen = 0;
} else {
vs->readlen -= len;
len = 0;
}
} else {
/* Lost data. */
break;
}
}
/* if(vs->readlen > 0) {
printf("More data %d\n", vs->readlen);
}*/
/* uip_appdata = appdata;*/
return 1;
}
