//
// Check the details of an existing sender
//
// 1) Find the sender
// 2) Get it's texture info
// 3) Return the sharehandle, width, height, and format
//
// Returns :
// true - all OK.
// width and height are returned changed for sender size change
// false - sender not found or size changed
// width and height are returned zero for sender not found
//
bool spoutSenderNames::CheckSender(const char *sendername, unsigned int &theWidth, unsigned int &theHeight, HANDLE &hSharehandle, DWORD &dwFormat)
{
SharedTextureInfo info;
char sname[SpoutMaxSenderNameLen];
// Is the given sender registered ?
if(FindSenderName(sendername)) {
// Does it still exist ?
if(getSharedInfo(sendername, &info)) {
// Return the texture info
// strcpy_s(sendername, 256, sname);
theWidth = (unsigned int)info.width;
theHeight = (unsigned int)info.height;
hSharehandle = (HANDLE)info.shareHandle;
dwFormat = (DWORD)info.format;
return true;
}
else {
// Sender is registered but does not exist so close it
ReleaseSenderName(sname);
}
}
// Return zero width and height to indicate sender not found
theHeight = 0;
theWidth = 0;
return false;
} // end CheckSender
//
// Check the details of an existing sender
//
// 1) Find the sender
// 2) Get it's texture info
// 3) Return the sharehandle, width, height, and format
//
// Returns :
// true - all OK.
// width and height are returned changed for sender size change
// false - sender not found or size changed
// width and height are returned zero for sender not found
//
bool spoutSenderNames::CheckSender(const char *sendername, unsigned int &theWidth, unsigned int &theHeight, HANDLE &hSharehandle, DWORD &dwFormat)
{
SharedTextureInfo info;
// Is the given sender registered ?
if(FindSenderName(sendername)) {
// Does it still exist ?
if(getSharedInfo(sendername, &info)) {
// Return the texture info
theWidth = (unsigned int)info.width;
theHeight = (unsigned int)info.height;
#ifdef _M_X64
hSharehandle = (HANDLE)(LongToHandle((long)info.shareHandle));
#else
hSharehandle = (HANDLE)info.shareHandle;
#endif
// hSharehandle = (HANDLE)info.shareHandle;
dwFormat = (DWORD)info.format;
return true;
}
else {
// Sender is registered but does not exist so close it
ReleaseSenderName(sendername);
}
}
// Return zero width and height to indicate sender not found
theHeight = 0;
theWidth = 0;
return false;
} // end CheckSender
// Find a sender and return the name, width and height, sharhandle and format
bool spoutSenderNames::FindSender(char *sendername, unsigned int &width, unsigned int &height, HANDLE &hSharehandle, DWORD &dwFormat)
{
SharedTextureInfo info;
// ---------------------------------------------------------
// For a receiver check the user entered Sender name, if one, to see if it exists
if(sendername[0] == 0) {
// Passed name was null, so find the active sender
if(!GetActiveSender(sendername)) {
return false;
}
}
// now we have either an existing sender name or the active sender name
// Try to get the sender information
if(getSharedInfo(sendername, &info)) {
width = (unsigned int)info.width; // pass back sender size
height = (unsigned int)info.height;
hSharehandle = (HANDLE)info.shareHandle;
dwFormat = (DWORD)info.format;
return true;
}
return false;
} // end FindSender
int spoutSenderNames::GetSenderCount() {
std::set<string> SenderSet;
std::set<string>::iterator iter;
string namestring;
char name[SpoutMaxSenderNameLen];
SharedTextureInfo info;
// Create the shared memory for the sender name set if it does not exist
if(!CreateSenderSet()) {
return 0;
}
// Doing multiple operations on the sender list, keep it locked
if (!m_senderNames.Lock())
{
return 0;
}
// get the name list in shared memory into a local list
GetSenderNames(&SenderSet);
// Now we have a local set of names
// 27.12.13 - noted that if a Processing sketch is stopped by closing the window
// all is OK and either the "stop" or "dispose" overrides work, but if STOP is used,
// or the sketch is closed, neither the exit or dispose functions are called and
// the sketch does not release the sender.
// So here we run through again and check whether the sender exists and if it does not
// release the sender from the local sender list
if(SenderSet.size() > 0) {
for(iter = SenderSet.begin(); iter != SenderSet.end(); iter++) {
namestring = *iter; // the Sender name string
strcpy_s(name, namestring.c_str());
// we have the name already, so look for it's info
if(!getSharedInfo(name, &info)) {
// Sender does not exist any more
ReleaseSenderName(name); // release from the shared memory list
}
}
}
// Get the new set back
if(GetSenderNames(&SenderSet)) {
m_senderNames.Unlock();
return(SenderSet.size());
}
m_senderNames.Unlock();
return 0;
}
// Function for clients to get the shared info of the active Sender
bool spoutSenderNames::GetActiveSenderInfo(SharedTextureInfo* info)
{
char sendername[SpoutMaxSenderNameLen];
// See if the shared memory of the active Sender exists
if(GetActiveSender(sendername)) {
if(getSharedInfo(sendername, info)) {
return true;
}
}
// It should exist because it is set whenever a Sender registers
return false;
} // end GetActiveSenderInfo
// This retrieves the info from the requested sender and fails if the sender does not exist
// For external access to getSharedInfo - redundancy
bool spoutSenderNames::GetSenderInfo(const char* sendername, unsigned int &width, unsigned int &height, HANDLE &dxShareHandle, DWORD &dwFormat)
{
SharedTextureInfo info;
if(getSharedInfo(sendername, &info)) {
width = (unsigned int)info.width;
height = (unsigned int)info.height;
dxShareHandle = (HANDLE)info.shareHandle;
dwFormat = info.format;
return true;
}
return false;
}
// Function for clients to retrieve the current active Sender name
bool spoutSenderNames::GetActiveSender(char Sendername[SpoutMaxSenderNameLen])
{
char ActiveSender[SpoutMaxSenderNameLen];
SharedTextureInfo info;
if(getActiveSenderName(ActiveSender)) {
// Does it still exist ?
if(getSharedInfo(ActiveSender, &info)) {
strcpy_s(Sendername, SpoutMaxSenderNameLen, ActiveSender);
return true;
}
else {
// Erase the map ?
}
}
return false;
} // end GetActiveSender
//
// Retrieve the texture info of the active sender
// - redundancy
bool spoutSenderNames::FindActiveSender(char sendername[SpoutMaxSenderNameLen], unsigned int &theWidth, unsigned int &theHeight, HANDLE &hSharehandle, DWORD &dwFormat)
{
SharedTextureInfo TextureInfo;
char sname[SpoutMaxSenderNameLen];
if(GetActiveSender(sname)) { // there is an active sender
if(getSharedInfo(sname, &TextureInfo)) {
strcpy_s(sendername, SpoutMaxSenderNameLen, sname); // pass back sender name
theWidth = (unsigned int)TextureInfo.width;
theHeight = (unsigned int)TextureInfo.height;
hSharehandle = (HANDLE)TextureInfo.shareHandle;
dwFormat = (DWORD)TextureInfo.format;
return true;
}
}
return false;
} // end FindActiveSender
// Find a sender and return the name, width and height, sharhandle and format
bool spoutSenderNames::FindSender(char *sendername, unsigned int &width, unsigned int &height, HANDLE &hSharehandle, DWORD &dwFormat)
{
SharedTextureInfo info;
// ---------------------------------------------------------
// For a receiver check the user entered Sender name, if one, to see if it exists
if(sendername[0] == 0) {
// Passed name was null, so find the active sender
if(!GetActiveSender(sendername)) {
return false;
}
}
// now we have either an existing sender name or the active sender name
// 01.08.15 - Is the given sender registered ?
if(!FindSenderName(sendername))
return false;
// Sender is registered so try to get the sender information
if(getSharedInfo(sendername, &info)) {
width = (unsigned int)info.width; // pass back sender size
height = (unsigned int)info.height;
#ifdef _M_X64
hSharehandle = (HANDLE)(LongToHandle((long)info.shareHandle));
#else
hSharehandle = (HANDLE)info.shareHandle;
#endif
// hSharehandle = (HANDLE)info.shareHandle;
dwFormat = (DWORD)info.format;
return true;
}
// 01.08.15 - Registered sender is no longer there so release it
ReleaseSenderName(sendername);
return false;
} // end FindSender
