void REPLICATESPU_APIENTRY
replicatespu_MakeCurrent( GLint window, GLint nativeWindow, GLint ctx )
{
unsigned int i;
unsigned int show_window = 0;
WindowInfo *winInfo = (WindowInfo *) crHashtableSearch( replicate_spu.windowTable, window );
ContextInfo *newCtx = (ContextInfo *) crHashtableSearch( replicate_spu.contextTable, ctx );
GET_THREAD(thread);
if (!winInfo) {
crWarning("Replicate SPU: Invalid window ID %d passed to MakeCurrent", window);
return;
}
if (thread)
replicatespuFlushAll( (void *)thread );
if (!thread) {
thread = replicatespuNewThread( crThreadID() );
}
CRASSERT(thread);
CRASSERT(thread->packer);
if (newCtx && winInfo) {
newCtx->currentWindow = winInfo;
#if 000
/* This appears to be obsolete code */
if (replicate_spu.render_to_crut_window && !nativeWindow) {
char response[8096];
CRConnection *conn = crMothershipConnect();
if (!conn) {
crError("Replicate SPU: Couldn't connect to the mothership to get CRUT drawable-- "
"I have no idea what to do!");
}
crMothershipGetParam( conn, "crut_drawable", response );
nativeWindow = crStrToInt(response);
crDebug("Replicate SPU: using CRUT drawable: 0x%x", nativeWindow);
crMothershipDisconnect(conn);
}
#endif
if (replicate_spu.glx_display
&& winInfo
&& winInfo->nativeWindow != nativeWindow)
{
winInfo->nativeWindow = nativeWindow;
replicatespuMonitorWindow(winInfo);
replicatespuRePositionWindow(winInfo);
show_window = 1;
}
CRASSERT(newCtx->State); /* verify valid */
crPackSetContext( thread->packer );
}
/*
* Send the MakeCurrent to all crservers (vnc viewers)
*/
for (i = 0; i < CR_MAX_REPLICANTS; i++) {
const GLint serverWin = winInfo ? winInfo->id[i] : -1;
const GLint serverCtx = newCtx ? newCtx->rserverCtx[i] : -1;
if (!IS_CONNECTED(replicate_spu.rserver[i].conn))
continue;
/* Note: app's native window ID not needed on server side; pass zero */
if (replicate_spu.swap)
crPackMakeCurrentSWAP(serverWin, 0, serverCtx);
else
crPackMakeCurrent(serverWin, 0, serverCtx);
if (show_window) {
/* We may find that the window was mapped before we
* called MakeCurrent, if that's the case then ensure
* the remote end gets the WindowShow event */
if (winInfo->viewable) {
if (replicate_spu.swap)
crPackWindowShowSWAP(serverWin, GL_TRUE);
else
crPackWindowShow(serverWin, GL_TRUE);
}
}
replicatespuFlushOne(thread, i);
}
if (newCtx) {
crStateMakeCurrent( newCtx->State );
crDLMSetCurrentState(newCtx->dlmState);
}
else {
crStateMakeCurrent( NULL );
crDLMSetCurrentState(NULL);
}
thread->currentContext = newCtx;
}
/**
* This is the main routine responsible for replicating our GL state
* for a new VNC viewer. Called when we detect that a new VNC viewer
* has been started.
* \param ipaddress the IP address where the new viewer is running.
*/
void
replicatespuReplicate(int ipaddress)
{
GET_THREAD(thread);
struct in_addr addr;
char *hosturl;
char *ipstring;
int i, r_slot;
int serverPort;
crDebug("Replicate SPU: Enter replicatespuReplicate(ipaddress=0x%x)", ipaddress);
replicatespuFlushAll( (void *)thread );
#ifdef CHROMIUM_THREADSAFE_notyet
crLockMutex(&_ReplicateMutex);
#endif
/*
* Find empty slot.
* Slot 0 is the dummy slot (a non-existant server on devnull connection)
*/
for (r_slot = 1; r_slot < CR_MAX_REPLICANTS; r_slot++) {
if (!IS_CONNECTED(replicate_spu.rserver[r_slot].conn))
break;
}
if (r_slot == CR_MAX_REPLICANTS) {
crWarning("Replicate SPU: no more replicant slots available");
return;
}
/**
** OK, now rserver[r_slot] is free for use.
**/
/*
* At this time, we can only support one VNC viewer per host.
* Check for that here.
*/
for (i = 1; i < CR_MAX_REPLICANTS; i++) {
if (replicate_spu.ipnumbers[i] == ipaddress) {
CRConnection *conn = replicate_spu.rserver[i].conn;
/* If the connection appears to be active, it may actually be a dangling
* connection. Try flushing it now. If flushing fails, the connection
* type will definitely be CR_NO_CONNECTION (which we test below).
*/
if (conn) {
if (conn->type != CR_NO_CONNECTION) {
FlushConnection(i);
}
if (conn->type != CR_NO_CONNECTION) {
crWarning("Replicate SPU: Can't connect to multiple VNC viewers on one host.");
#if 0
/* The above test isn't 100% reliable and can prevent successful
* restart of a viewer on a host. For now, just print warning and
* continue.
*/
return;
#endif
}
}
}
}
replicate_spu.ipnumbers[r_slot] = ipaddress;
serverPort = replicate_spu.chromium_start_port + r_slot;
if (replicate_spu.vncAvailable) {
/* Send a ChromiumStart message to the VNC Server. The VNC Server will
* in turn send a ChromiumStart message to all the attached VNC viewers.
* The VNC Viewer/Chromium module will tell its crserver that there's
* a new OpenGL client.
* We pass the mothership port and crserver port in this message.
*/
char protocol[100], hostname[1000];
const char *mothershipURL;
unsigned short mothershipPort;
mothershipURL = crGetenv("CRMOTHERSHIP");
crDebug("Replicate SPU: CRMOTHERSHIP env var = %s", mothershipURL);
if (mothershipURL)
crParseURL(mothershipURL, protocol, hostname, &mothershipPort,
DEFAULT_MOTHERSHIP_PORT);
else
mothershipPort = DEFAULT_MOTHERSHIP_PORT;
crDebug("Replicate SPU: Sending ChromiumStart msg to VNC server, port=%d",
serverPort);
if (!XVncChromiumStart(replicate_spu.glx_display, ipaddress,
serverPort, mothershipPort)) {
crWarning("Replicate SPU: XVncChromiumStart() call failed");
}
}
addr.s_addr = ipaddress;
ipstring = inet_ntoa(addr);
hosturl = crAlloc(crStrlen(ipstring) + 9);
sprintf(hosturl, "tcpip://%s", ipstring);
crDebug("Replicate SPU attaching to %s on port %d", hosturl, serverPort);
/* connect to the remote VNC server */
replicate_spu.rserver[r_slot].name = crStrdup( replicate_spu.name );
replicate_spu.rserver[r_slot].buffer_size = replicate_spu.buffer_size;
replicate_spu.rserver[r_slot].conn
= crNetConnectToServer( hosturl, serverPort,
replicate_spu.rserver[r_slot].buffer_size, 1);
if (!replicate_spu.rserver[r_slot].conn) {
crWarning("Replicate SPU: failed to connect to %s", hosturl);
return;
}
CRASSERT(replicate_spu.rserver[r_slot].conn);
/*
* Setup the the packer flush function. While replicating state to
* a particular server we definitely don't want to do any broadcast
* flushing!
*/
crPackFlushFunc( thread->packer, replicatespuFlushOnePacker );
crPackSendHugeFunc( thread->packer, replicatespuHugeOnePacker );
NewServerIndex = r_slot;
/*
* Create server-side windows and contexts by walking tables of app windows
* and contexts. Note that windows can be created in random order,
* but contexts must be created in the order they were originally
* created, or shared contexts will break.
*/
crHashtableWalk(replicate_spu.windowTable, replicatespuReplicateWindow, thread);
crListApply(replicate_spu.contextList, replicatespuReplicateContext, thread);
/* MakeCurrent, the current context */
if (thread->currentContext) {
int serverWindow = thread->currentContext->currentWindow->id[r_slot];
int serverContext = thread->currentContext->rserverCtx[r_slot];
if (replicate_spu.swap)
crPackMakeCurrentSWAP(serverWindow, 0, serverContext);
else
crPackMakeCurrent(serverWindow, 0, serverContext);
crStateMakeCurrent( thread->currentContext->State );
}
/*
* Set window sizes
*/
crHashtableWalk(replicate_spu.windowTable, replicatespuResizeWindows, thread);
replicatespuFlushOne(thread, NewServerIndex);
/*
* restore normal, broadcasting packer flush function now.
*/
crPackFlushFunc( thread->packer, replicatespuFlush );
crPackSendHugeFunc( thread->packer, replicatespuHuge );
NewServerIndex = -1;
crDebug("Replicate SPU: leaving replicatespuReplicate");
#ifdef CHROMIUM_THREADSAFE_notyet
crUnlockMutex(&_ReplicateMutex);
#endif
}
void PACKSPU_APIENTRY packspu_MakeCurrent( GLint window, GLint nativeWindow, GLint ctx )
{
GET_THREAD(thread);
GLint serverCtx;
ContextInfo *newCtx;
if (!thread) {
thread = packspuNewThread( crThreadID() );
}
CRASSERT(thread);
CRASSERT(thread->packer);
if (ctx) {
const int slot = ctx - MAGIC_OFFSET;
CRASSERT(slot >= 0);
CRASSERT(slot < pack_spu.numContexts);
newCtx = &pack_spu.context[slot];
CRASSERT(newCtx->clientState); /* verify valid */
if (newCtx->fAutoFlush)
{
if (newCtx->currentThread && newCtx->currentThread != thread)
{
crLockMutex(&_PackMutex);
/* do a flush for the previusly assigned thread
* to ensure all commands issued there are submitted */
if (newCtx->currentThread
&& newCtx->currentThread->inUse
&& newCtx->currentThread->netServer.conn
&& newCtx->currentThread->packer && newCtx->currentThread->packer->currentBuffer)
{
packspuFlush((void *) newCtx->currentThread);
}
crUnlockMutex(&_PackMutex);
}
newCtx->currentThread = thread;
}
thread->currentContext = newCtx;
crPackSetContext( thread->packer );
crStateMakeCurrent( newCtx->clientState );
//crStateSetCurrentPointers(newCtx->clientState, &thread->packer->current);
serverCtx = pack_spu.context[slot].serverCtx;
}
else {
thread->currentContext = NULL;
crStateMakeCurrent( NULL );
newCtx = NULL;
serverCtx = 0;
}
if (pack_spu.swap)
crPackMakeCurrentSWAP( window, nativeWindow, serverCtx );
else
crPackMakeCurrent( window, nativeWindow, serverCtx );
{
GET_THREAD(t);
(void) t;
CRASSERT(t);
}
}
/**
* Replicate our contexts on a new server (indicated by NewServerIndex).
* XXX It may be a problem if we try to attach to a shared context,
* when that shared context has not yet been created.
*/
static void
replicatespuReplicateContext(void *element, void *arg)
{
GLint ctx = (GLint) element;
ThreadInfo *thread = (ThreadInfo *) arg;
ContextInfo *context = crHashtableSearch(replicate_spu.contextTable, ctx);
ContextInfo *sharedContext = NULL;
CRContext *tempState;
GLint return_val = 0, shareCtx = context->shareCtx, sharedServerCtx = 0;
int writeback;
if (!context->State) { /* XXX need this? */
crWarning("ReplicateSPU: replicating context with no state!");
return;
}
if (shareCtx > 0) {
sharedContext = (ContextInfo *)
crHashtableSearch(replicate_spu.contextTable, shareCtx);
if (sharedContext)
sharedServerCtx = sharedContext->rserverCtx[NewServerIndex];
}
/*
* Send CreateContext to new server and get return value
*/
if (replicate_spu.swap)
crPackCreateContextSWAP( replicate_spu.dpyName, context->visBits,
sharedServerCtx, &return_val, &writeback);
else
crPackCreateContext( replicate_spu.dpyName, context->visBits,
sharedServerCtx, &return_val, &writeback);
replicatespuFlushOne(thread, NewServerIndex);
writeback = 1;
while (writeback)
crNetRecv();
if (replicate_spu.swap)
return_val = (GLint) SWAP32(return_val);
if (return_val <= 0) {
crWarning("Replicate SPU: CreateContext failed");
return;
}
context->rserverCtx[NewServerIndex] = return_val;
/*
* Create a new CRContext record representing the state of the new
* server (all default state). We'll diff against this to send all the
* needed state to the server.
* When done, we can dispose of this context.
*/
tempState = crStateCreateContext(NULL, context->visBits, NULL);
/* Bind the remote context. The window's not really significant. */
{
int serverWindow;
if (context->currentWindow)
serverWindow = context->currentWindow->id[NewServerIndex];
else
serverWindow = 0;
if (replicate_spu.swap)
crPackMakeCurrentSWAP( serverWindow, 0, return_val );
else
crPackMakeCurrent( serverWindow, 0, return_val );
}
/* Send state differences, all texture objects and all display lists
* to the new server.
* XXX We could be more efficient; in the case of a shared context,
* we only need to replicate textures and display lists once...
*/
crStateDiffContext( tempState, context->State );
replicatespuReplicateTextures(tempState, context->State);
replicatespuReplicateLists(tempState, context->displayListManager);
/* XXX this call may not be needed */
replicatespuFlushOne(thread, NewServerIndex);
/* Destroy the temporary context, no longer needed */
crStateDestroyContext( tempState );
}