void initialize_xdamage(void) {
sraRegionPtr *ptr;
int i, nreg;
if (! xdamage_present) {
use_xdamage = 0;
}
if (xdamage_regions) {
ptr = xdamage_regions;
while (*ptr != NULL) {
sraRgnDestroy(*ptr);
ptr++;
}
free(xdamage_regions);
xdamage_regions = NULL;
}
if (use_xdamage) {
nreg = (xdamage_memory * NSCAN) + 2;
xdamage_regions = (sraRegionPtr *)
malloc(nreg * sizeof(sraRegionPtr));
for (i = 0; i < nreg; i++) {
ptr = xdamage_regions+i;
if (i == nreg - 1) {
*ptr = NULL;
} else {
*ptr = sraRgnCreate();
sraRgnMakeEmpty(*ptr);
}
}
/* set so will be 0 in first collect_xdamage call */
xdamage_ticker = -1;
}
}
void rfbNewFramebuffer(rfbScreenInfoPtr rfbScreen, char *framebuffer,
int width, int height)
{
rfbClientIteratorPtr iterator;
rfbClientPtr cl;
if (width & 3)
rfbErr("WARNING: New width (%d) is not a multiple of 4.\n", width);
/* Update information in the rfbScreenInfo structure */
rfbScreen->width = width;
rfbScreen->height = height;
rfbScreen->frameBuffer = framebuffer;
/* Adjust pointer position if necessary */
if (rfbScreen->cursorX >= width)
rfbScreen->cursorX = width - 1;
if (rfbScreen->cursorY >= height)
rfbScreen->cursorY = height - 1;
/* For each client: */
iterator = rfbGetClientIterator(rfbScreen);
while ((cl = rfbClientIteratorNext(iterator)) != NULL) {
/* Mark the screen contents as changed, and schedule sending
NewFBSize message if supported by this client. */
LOCK(cl->updateMutex);
sraRgnDestroy(cl->modifiedRegion);
cl->modifiedRegion = sraRgnCreateRect(0, 0, width, height);
sraRgnMakeEmpty(cl->copyRegion);
cl->copyDX = 0;
cl->copyDY = 0;
if (cl->useNewFBSize)
cl->newFBSizePending = TRUE;
UNLOCK(cl->updateMutex);
}
rfbReleaseClientIterator(iterator);
}
void rfbNewFramebuffer(rfbScreenInfoPtr screen, char *framebuffer,
int width, int height,
int bitsPerSample, int samplesPerPixel,
int bytesPerPixel)
{
rfbPixelFormat old_format;
rfbBool format_changed = FALSE;
rfbClientIteratorPtr iterator;
rfbClientPtr cl;
/* Update information in the screenInfo structure */
old_format = screen->serverFormat;
if (width & 3)
rfbErr("WARNING: New width (%d) is not a multiple of 4.\n", width);
screen->width = width;
screen->height = height;
screen->bitsPerPixel = screen->depth = 8*bytesPerPixel;
screen->paddedWidthInBytes = width*bytesPerPixel;
rfbInitServerFormat(screen, bitsPerSample);
if (memcmp(&screen->serverFormat, &old_format,
sizeof(rfbPixelFormat)) != 0) {
format_changed = TRUE;
}
screen->frameBuffer = framebuffer;
/* Adjust pointer position if necessary */
if (screen->cursorX >= width)
screen->cursorX = width - 1;
if (screen->cursorY >= height)
screen->cursorY = height - 1;
/* For each client: */
iterator = rfbGetClientIterator(screen);
while ((cl = rfbClientIteratorNext(iterator)) != NULL) {
/* Re-install color translation tables if necessary */
if (format_changed)
screen->setTranslateFunction(cl);
/* Mark the screen contents as changed, and schedule sending
NewFBSize message if supported by this client. */
LOCK(cl->updateMutex);
sraRgnDestroy(cl->modifiedRegion);
cl->modifiedRegion = sraRgnCreateRect(0, 0, width, height);
sraRgnMakeEmpty(cl->copyRegion);
cl->copyDX = 0;
cl->copyDY = 0;
if (cl->useNewFBSize)
cl->newFBSizePending = TRUE;
TSIGNAL(cl->updateCond);
UNLOCK(cl->updateMutex);
}
rfbReleaseClientIterator(iterator);
}
void rfbScheduleCopyRegion(rfbScreenInfoPtr rfbScreen,sraRegionPtr copyRegion,int dx,int dy)
{
rfbClientIteratorPtr iterator;
rfbClientPtr cl;
iterator=rfbGetClientIterator(rfbScreen);
while((cl=rfbClientIteratorNext(iterator))) {
LOCK(cl->updateMutex);
if(cl->useCopyRect) {
sraRegionPtr modifiedRegionBackup;
if(!sraRgnEmpty(cl->copyRegion)) {
if(cl->copyDX!=dx || cl->copyDY!=dy) {
/* if a copyRegion was not yet executed, treat it as a
* modifiedRegion. The idea: in this case it could be
* source of the new copyRect or modified anyway. */
sraRgnOr(cl->modifiedRegion,cl->copyRegion);
sraRgnMakeEmpty(cl->copyRegion);
} else {
/* we have to set the intersection of the source of the copy
* and the old copy to modified. */
modifiedRegionBackup=sraRgnCreateRgn(copyRegion);
sraRgnOffset(modifiedRegionBackup,-dx,-dy);
sraRgnAnd(modifiedRegionBackup,cl->copyRegion);
sraRgnOr(cl->modifiedRegion,modifiedRegionBackup);
sraRgnDestroy(modifiedRegionBackup);
}
}
sraRgnOr(cl->copyRegion,copyRegion);
cl->copyDX = dx;
cl->copyDY = dy;
/* if there were modified regions, which are now copied,
* mark them as modified, because the source of these can be overlapped
* either by new modified or now copied regions. */
modifiedRegionBackup=sraRgnCreateRgn(cl->modifiedRegion);
sraRgnOffset(modifiedRegionBackup,dx,dy);
sraRgnAnd(modifiedRegionBackup,cl->copyRegion);
sraRgnOr(cl->modifiedRegion,modifiedRegionBackup);
sraRgnDestroy(modifiedRegionBackup);
if(!cl->enableCursorShapeUpdates) {
/*
* n.b. (dx, dy) is the vector pointing in the direction the
* copyrect displacement will take place. copyRegion is the
* destination rectangle (say), not the source rectangle.
*/
sraRegionPtr cursorRegion;
int x = cl->cursorX - cl->screen->cursor->xhot;
int y = cl->cursorY - cl->screen->cursor->yhot;
int w = cl->screen->cursor->width;
int h = cl->screen->cursor->height;
cursorRegion = sraRgnCreateRect(x, y, x + w, y + h);
sraRgnAnd(cursorRegion, cl->copyRegion);
if(!sraRgnEmpty(cursorRegion)) {
/*
* current cursor rect overlaps with the copy region *dest*,
* mark it as modified since we won't copy-rect stuff to it.
*/
sraRgnOr(cl->modifiedRegion, cursorRegion);
}
sraRgnDestroy(cursorRegion);
cursorRegion = sraRgnCreateRect(x, y, x + w, y + h);
/* displace it to check for overlap with copy region source: */
sraRgnOffset(cursorRegion, dx, dy);
sraRgnAnd(cursorRegion, cl->copyRegion);
if(!sraRgnEmpty(cursorRegion)) {
/*
* current cursor rect overlaps with the copy region *source*,
* mark the *displaced* cursorRegion as modified since we
* won't copyrect stuff to it.
*/
sraRgnOr(cl->modifiedRegion, cursorRegion);
}
sraRgnDestroy(cursorRegion);
}
} else {
sraRgnOr(cl->modifiedRegion,copyRegion);
}
TSIGNAL(cl->updateCond);
UNLOCK(cl->updateMutex);
}
rfbReleaseClientIterator(iterator);
}
int VNCServer::Client::Run()
{
Log(">VNCServer::Client::Run [this:%p]\n",this);
//Lock
LOCK(cl->updateMutex);
//Set new modified region
cl->modifiedRegion = sraRgnCreateRect(0,0,cl->screen->width,cl->screen->height);
//Until ended
while (!wait.IsCanceled())
{
Debug("-VNCServer::Client lopp [this:%p,state:%d,empty:%d]\n",this,cl->state,sraRgnEmpty(cl->requestedRegion));
//If connected, always require a FB Update Request (otherwise can crash.)
if (cl->state == rfbClientRec::RFB_NORMAL && !sraRgnEmpty(cl->requestedRegion))
{
//If reseted
if (reset)
{
Log("-Reseting client\n");
//Reset message
char msg[] = {16};
//Write it
if (!Write(msg,sizeof(msg)))
//WS closed
break;
//Clear reset flag
reset = false;
}
/*
//If the scren has been resized
if (cl->newFBSizePending)
{
//Free region
sraRgnDestroy(cl->modifiedRegion);
//Set new modified region
cl->modifiedRegion = sraRgnCreateRect(0,0,cl->screen->width,cl->screen->height);
}
*/
//We need to update by default
bool haveUpdate = true;
/* Now, get the region we're going to update, and remove
it from cl->modifiedRegion _before_ we send the update.
That way, if anything that overlaps the region we're sending
is updated, we'll be sure to do another update later. */
sraRegion* updateRegion = sraRgnCreateRgn(cl->modifiedRegion);
//Check if we didn't already have a pending update
if (!FB_UPDATE_PENDING(cl))
//Check it is inside requested region
haveUpdate = !sraRgnEmpty(cl->modifiedRegion);//sraRgnAnd(updateRegion,cl->requestedRegion);
//IF we are freezed
if (freeze)
//Don't send any change
sraRgnMakeEmpty(updateRegion);
//Clean modified region
sraRgnMakeEmpty(cl->modifiedRegion);
//Unlock region
UNLOCK(cl->updateMutex);
Debug("-VNCServer::Client update [this:%p,update:%d,mod:%d,req:%d]\n",this,haveUpdate,sraRgnEmpty(cl->modifiedRegion),sraRgnEmpty(cl->requestedRegion));
//If we have to update and not freezed
if (haveUpdate)
{
Debug(">VNCServer::Client SendFramebufferUpdate [%p]\n",this);
/* Now actually send the update. */
rfbIncrClientRef(cl);
//LOCK(cl->sendMutex);
rfbSendFramebufferUpdate(cl, updateRegion);
//UNLOCK(cl->sendMutex);
rfbDecrClientRef(cl);
Debug("<VNCServer::Client SendFramebufferUpdate [%p]\n",this);
}
//Destroy region
sraRgnDestroy(updateRegion);
//Lock again
LOCK(cl->updateMutex);
}
//Check if we have been cancelled
if (wait.IsCanceled())
//Exit
break;
//Wait cond
Debug("<VNCServer::Client going to sleep [this:%p]\n",this);
WAIT(cl->updateCond,cl->updateMutex);
Debug(">VNCServer::Client waked up from wait mutex[this:%p,isCanceled:%d]\n",this,wait.IsCanceled());
}
//Unlock
UNLOCK(cl->updateMutex);
Log("<VNCServer::Client::Run [this:%p]\n",this);
//OK
return 0;
}
int xdamage_hint_skip(int y) {
static sraRegionPtr scanline = NULL;
static sraRegionPtr tmpl_y = NULL;
int fast_tmpl = 1;
sraRegionPtr reg, tmpl;
int ret, i, n, nreg;
#ifndef NO_NCACHE
static int ncache_no_skip = 0;
static double last_ncache_no_skip = 0.0;
static double last_ncache_no_skip_long = 0.0, ncache_fac = 0.25;
#endif
if (! xdamage_present || ! use_xdamage) {
return 0; /* cannot skip */
}
if (! xdamage_regions) {
return 0; /* cannot skip */
}
if (! scanline) {
/* keep it around to avoid malloc etc, recreate */
scanline = sraRgnCreate();
}
if (! tmpl_y) {
tmpl_y = sraRgnCreateRect(0, 0, dpy_x, 1);
}
nreg = (xdamage_memory * NSCAN) + 1;
#ifndef NO_NCACHE
if (ncache > 0) {
if (ncache_no_skip == 0) {
double now = g_now;
if (now > last_ncache_no_skip + 8.0) {
ncache_no_skip = 1;
} else if (now < last_bs_restore + 0.5) {
ncache_no_skip = 1;
} else if (now < last_su_restore + 0.5) {
ncache_no_skip = 1;
} else if (now < last_copyrect + 0.5) {
ncache_no_skip = 1;
}
if (ncache_no_skip) {
last_ncache_no_skip = dnow();
if (now > last_ncache_no_skip_long + 60.0) {
ncache_fac = 2.0;
last_ncache_no_skip_long = now;
} else {
ncache_fac = 0.25;
}
return 0;
}
} else {
if (ncache_no_skip++ >= ncache_fac*nreg + 4) {
ncache_no_skip = 0;
} else {
return 0;
}
}
}
#endif
if (fast_tmpl) {
sraRgnOffset(tmpl_y, 0, y);
tmpl = tmpl_y;
} else {
tmpl = sraRgnCreateRect(0, y, dpy_x, y+1);
}
ret = 1;
for (i=0; i<nreg; i++) {
/* go back thru the history starting at most recent */
n = (xdamage_ticker + nreg - i) % nreg;
reg = xdamage_regions[n];
if (reg == NULL) {
continue;
}
if (sraRgnEmpty(reg)) {
/* checking for emptiness is very fast */
continue;
}
sraRgnMakeEmpty(scanline);
sraRgnOr(scanline, tmpl);
if (sraRgnAnd(scanline, reg)) {
ret = 0;
break;
}
}
if (fast_tmpl) {
sraRgnOffset(tmpl_y, 0, -y);
} else {
sraRgnDestroy(tmpl);
}
if (0) fprintf(stderr, "xdamage_hint_skip: %d -> %d\n", y, ret);
return ret;
}
int collect_xdamage(int scancnt, int call) {
#if HAVE_LIBXDAMAGE
XDamageNotifyEvent *dev;
XEvent ev;
sraRegionPtr tmpregion;
sraRegionPtr reg;
static int rect_count = 0;
int nreg, ccount = 0, dcount = 0, ecount = 0;
static time_t last_rpt = 0;
time_t now;
int x, y, w, h, x2, y2;
int i, dup, next = 0, dup_max = 0;
#define DUPSZ 32
int dup_x[DUPSZ], dup_y[DUPSZ], dup_w[DUPSZ], dup_h[DUPSZ];
double tm, dt;
int mark_all = 0, retries = 0, too_many = 1000, tot_ev = 0;
RAWFB_RET(0)
if (scancnt) {} /* unused vars warning: */
if (! xdamage_present || ! use_xdamage) {
return 0;
}
if (! xdamage) {
return 0;
}
if (! xdamage_base_event_type) {
return 0;
}
if (! xdamage_regions) {
return 0;
}
dtime0(&tm);
nreg = (xdamage_memory * NSCAN) + 1;
if (call == 0) {
xdamage_ticker = (xdamage_ticker+1) % nreg;
xdamage_direct_count = 0;
reg = xdamage_regions[xdamage_ticker];
if (reg != NULL) {
sraRgnMakeEmpty(reg);
}
} else {
if (xdamage_ticker < 0) {
xdamage_ticker = 0;
}
reg = xdamage_regions[xdamage_ticker];
}
if (reg == NULL) {
return 0;
}
X_LOCK;
if (0) XFlush_wr(dpy);
if (0) XEventsQueued(dpy, QueuedAfterFlush);
come_back_for_more:
while (XCheckTypedEvent(dpy, xdamage_base_event_type+XDamageNotify, &ev)) {
/*
* TODO max cut off time in this loop?
* Could check QLength and if huge just mark the whole
* screen.
*/
ecount++;
tot_ev++;
if (mark_all) {
continue;
}
if (ecount == too_many) {
int nqa = XEventsQueued(dpy, QueuedAlready);
if (nqa >= too_many) {
static double last_msg = 0.0;
tmpregion = sraRgnCreateRect(0, 0, dpy_x, dpy_y);
sraRgnOr(reg, tmpregion);
sraRgnDestroy(tmpregion);
if (dnow() > last_msg + xdamage_crazy_delay) {
rfbLog("collect_xdamage: too many xdamage events %d+%d\n", ecount, nqa);
last_msg = dnow();
}
mark_all = 1;
}
}
if (ev.type != xdamage_base_event_type + XDamageNotify) {
break;
}
dev = (XDamageNotifyEvent *) &ev;
if (dev->damage != xdamage) {
continue; /* not ours! */
}
x = dev->area.x;
y = dev->area.y;
w = dev->area.width;
h = dev->area.height;
/*
* we try to manually remove some duplicates because
* certain activities can lead to many 10's of dups
* in a row. The region work can be costly and reg is
* later used in xdamage_hint_skip loops, so it is good
* to skip them if possible.
*/
dup = 0;
for (i=0; i < dup_max; i++) {
if (dup_x[i] == x && dup_y[i] == y && dup_w[i] == w &&
dup_h[i] == h) {
dup = 1;
break;
}
}
if (dup) {
dcount++;
continue;
}
if (dup_max < DUPSZ) {
next = dup_max;
dup_max++;
} else {
next = (next+1) % DUPSZ;
}
dup_x[next] = x;
dup_y[next] = y;
dup_w[next] = w;
dup_h[next] = h;
/* translate if needed */
if (clipshift) {
/* set coords relative to fb origin */
if (0 && rootshift) {
/*
* Note: not needed because damage is
* relative to subwin, not rootwin.
*/
x = x - off_x;
y = y - off_y;
}
if (clipshift) {
x = x - coff_x;
y = y - coff_y;
}
x2 = x + w; /* upper point */
x = nfix(x, dpy_x); /* place both in fb area */
x2 = nfix(x2, dpy_x+1);
w = x2 - x; /* recompute w */
y2 = y + h;
y = nfix(y, dpy_y);
y2 = nfix(y2, dpy_y+1);
h = y2 - y;
if (w <= 0 || h <= 0) {
continue;
}
}
if (debug_xdamage > 2) {
fprintf(stderr, "xdamage: -> event %dx%d+%d+%d area:"
" %d dups: %d %s\n", w, h, x, y, w*h, dcount,
(w*h > xdamage_max_area) ? "TOO_BIG" : "");
}
record_desired_xdamage_rect(x, y, w, h);
tmpregion = sraRgnCreateRect(x, y, x + w, y + h);
sraRgnOr(reg, tmpregion);
sraRgnDestroy(tmpregion);
rect_count++;
ccount++;
}
if (mark_all) {
if (ecount + XEventsQueued(dpy, QueuedAlready) >= 3 * too_many && retries < 3) {
retries++;
XFlush_wr(dpy);
usleep(20 * 1000);
XFlush_wr(dpy);
ecount = 0;
goto come_back_for_more;
}
}
/* clear the whole damage region for next time. XXX check */
if (call == 1) {
XDamageSubtract(dpy, xdamage, None, None);
}
X_UNLOCK;
if (tot_ev > 20 * too_many) {
rfbLog("collect_xdamage: xdamage has gone crazy (screensaver or game?) ev: %d ret: %d\n", tot_ev, retries);
rfbLog("collect_xdamage: disabling xdamage for %d seconds.\n", (int) xdamage_crazy_delay);
destroy_xdamage_if_needed();
X_LOCK;
XSync(dpy, False);
while (XCheckTypedEvent(dpy, xdamage_base_event_type+XDamageNotify, &ev)) {
;
}
X_UNLOCK;
xdamage_crazy_time = dnow();
}
if (0 && xdamage_direct_count) {
fb_push();
}
dt = dtime(&tm);
if ((debug_tiles > 1 && ecount) || (debug_tiles && ecount > 200)
|| debug_xdamage > 1) {
fprintf(stderr, "collect_xdamage(%d): %.4f t: %.4f ev/dup/accept"
"/direct %d/%d/%d/%d\n", call, dt, tm - x11vnc_start, ecount,
dcount, ccount, xdamage_direct_count);
}
now = time(NULL);
if (! last_rpt) {
last_rpt = now;
}
if (now > last_rpt + 15) {
double rat = -1.0;
if (XD_tot) {
rat = ((double) XD_skip)/XD_tot;
}
if (debug_tiles || debug_xdamage) {
fprintf(stderr, "xdamage: == scanline skip/tot: "
"%04d/%04d =%.3f rects: %d desired: %d\n",
XD_skip, XD_tot, rat, rect_count, XD_des);
}
XD_skip = 0;
XD_tot = 0;
XD_des = 0;
rect_count = 0;
last_rpt = now;
}
#else
if (0) scancnt++; /* compiler warnings */
if (0) call++;
if (0) record_desired_xdamage_rect(0, 0, 0, 0);
#endif
return 0;
}
int collect_non_X_xdamage(int x_in, int y_in, int w_in, int h_in, int call) {
sraRegionPtr tmpregion;
sraRegionPtr reg;
static int rect_count = 0;
int nreg, ccount = 0, dcount = 0, ecount = 0;
static time_t last_rpt = 0;
time_t now;
double tm, dt;
int x, y, w, h, x2, y2;
if (call && debug_xdamage > 1) fprintf(stderr, "collect_non_X_xdamage: %d %d %d %d - %d / %d\n", x_in, y_in, w_in, h_in, call, use_xdamage);
if (! use_xdamage) {
return 0;
}
if (! xdamage_regions) {
return 0;
}
dtime0(&tm);
nreg = (xdamage_memory * NSCAN) + 1;
if (call == 0) {
xdamage_ticker = (xdamage_ticker+1) % nreg;
xdamage_direct_count = 0;
reg = xdamage_regions[xdamage_ticker];
if (reg != NULL) {
sraRgnMakeEmpty(reg);
}
} else {
if (xdamage_ticker < 0) {
xdamage_ticker = 0;
}
reg = xdamage_regions[xdamage_ticker];
}
if (reg == NULL) {
return 0;
}
if (x_in < 0) {
return 0;
}
x = x_in;
y = y_in;
w = w_in;
h = h_in;
/* translate if needed */
if (clipshift) {
/* set coords relative to fb origin */
if (0 && rootshift) {
/*
* Note: not needed because damage is
* relative to subwin, not rootwin.
*/
x = x - off_x;
y = y - off_y;
}
if (clipshift) {
x = x - coff_x;
y = y - coff_y;
}
x2 = x + w; /* upper point */
x = nfix(x, dpy_x); /* place both in fb area */
x2 = nfix(x2, dpy_x+1);
w = x2 - x; /* recompute w */
y2 = y + h;
y = nfix(y, dpy_y);
y2 = nfix(y2, dpy_y+1);
h = y2 - y;
if (w <= 0 || h <= 0) {
return 0;
}
}
if (debug_xdamage > 2) {
fprintf(stderr, "xdamage: -> event %dx%d+%d+%d area:"
" %d dups: %d %s reg: %p\n", w, h, x, y, w*h, dcount,
(w*h > xdamage_max_area) ? "TOO_BIG" : "", (void *)reg);
}
record_desired_xdamage_rect(x, y, w, h);
tmpregion = sraRgnCreateRect(x, y, x + w, y + h);
sraRgnOr(reg, tmpregion);
sraRgnDestroy(tmpregion);
rect_count++;
ccount++;
if (0 && xdamage_direct_count) {
fb_push();
}
dt = dtime(&tm);
if ((debug_tiles > 1 && ecount) || (debug_tiles && ecount > 200)
|| debug_xdamage > 1) {
fprintf(stderr, "collect_non_X_xdamage(%d): %.4f t: %.4f ev/dup/accept"
"/direct %d/%d/%d/%d\n", call, dt, tm - x11vnc_start, ecount,
dcount, ccount, xdamage_direct_count);
}
now = time(NULL);
if (! last_rpt) {
last_rpt = now;
}
if (now > last_rpt + 15) {
double rat = -1.0;
if (XD_tot) {
rat = ((double) XD_skip)/XD_tot;
}
if (debug_tiles || debug_xdamage) {
fprintf(stderr, "xdamage: == scanline skip/tot: "
"%04d/%04d =%.3f rects: %d desired: %d\n",
XD_skip, XD_tot, rat, rect_count, XD_des);
}
XD_skip = 0;
XD_tot = 0;
XD_des = 0;
rect_count = 0;
last_rpt = now;
}
return 0;
}
void rfbScheduleCopyRegion(rfbScreenInfoPtr rfbScreen,sraRegionPtr copyRegion,int dx,int dy)
{
rfbClientIteratorPtr iterator;
rfbClientPtr cl;
iterator=rfbGetClientIterator(rfbScreen);
while((cl=rfbClientIteratorNext(iterator))) {
LOCK(cl->updateMutex);
if(cl->useCopyRect) {
sraRegionPtr modifiedRegionBackup;
if(!sraRgnEmpty(cl->copyRegion)) {
if(cl->copyDX!=dx || cl->copyDY!=dy) {
/* if a copyRegion was not yet executed, treat it as a
* modifiedRegion. The idea: in this case it could be
* source of the new copyRect or modified anyway. */
sraRgnOr(cl->modifiedRegion,cl->copyRegion);
sraRgnMakeEmpty(cl->copyRegion);
} else {
/* we have to set the intersection of the source of the copy
* and the old copy to modified. */
modifiedRegionBackup=sraRgnCreateRgn(copyRegion);
sraRgnOffset(modifiedRegionBackup,-dx,-dy);
sraRgnAnd(modifiedRegionBackup,cl->copyRegion);
sraRgnOr(cl->modifiedRegion,modifiedRegionBackup);
sraRgnDestroy(modifiedRegionBackup);
}
}
sraRgnOr(cl->copyRegion,copyRegion);
cl->copyDX = dx;
cl->copyDY = dy;
/* if there were modified regions, which are now copied,
* mark them as modified, because the source of these can be overlapped
* either by new modified or now copied regions. */
modifiedRegionBackup=sraRgnCreateRgn(cl->modifiedRegion);
sraRgnOffset(modifiedRegionBackup,dx,dy);
sraRgnAnd(modifiedRegionBackup,cl->copyRegion);
sraRgnOr(cl->modifiedRegion,modifiedRegionBackup);
sraRgnDestroy(modifiedRegionBackup);
#if 0
/* TODO: is this needed? Or does it mess up deferring? */
/* while(!sraRgnEmpty(cl->copyRegion)) */ {
{
sraRegionPtr updateRegion = sraRgnCreateRgn(cl->modifiedRegion);
sraRgnOr(updateRegion,cl->copyRegion);
UNLOCK(cl->updateMutex);
rfbSendFramebufferUpdate(cl,updateRegion);
sraRgnDestroy(updateRegion);
continue;
}
}
#endif
} else {
sraRgnOr(cl->modifiedRegion,copyRegion);
}
UNLOCK(cl->updateMutex);
}
rfbReleaseClientIterator(iterator);
}