TTS: Add *_NO_REPEAT actions

backends/text-to-speech/linux/linux-text-to-speech.cpp

@@ -81,6 +81,7 @@ void LinuxTextToSpeechManager::init() {
 		warning("Couldn't initialize text to speech through speech-dispatcher");
 		return;
 	}
+	_lastSaid = "";
 
 	_connection->callback_begin = speech_begin_callback;
 	spd_set_notification_on(_connection, SPD_BEGIN);
@@ -138,6 +139,12 @@ bool LinuxTextToSpeechManager::say(Common::String str, Action action, Common::St
 	if (action == DROP && isSpeaking())
 		return true;
 
+	if (action == INTERRUPT_NO_REPEAT && _lastSaid == str && isSpeaking())
+		return true;
+
+	if (action == QUEUE_NO_REPEAT && _lastSaid == str && isSpeaking())
+		return true;
+	
 	if (charset.empty()) {
 #ifdef USE_TRANSLATION
 		charset = TransMan.getCurrentCharset();
@@ -148,10 +155,11 @@ bool LinuxTextToSpeechManager::say(Common::String str, Action action, Common::St
 
 	str = strToUtf8(str, charset);
 
-	if (isSpeaking() && action == INTERRUPT)
+	if (isSpeaking() && action == INTERRUPT || action == INTERRUPT_NO_REPEAT)
 		stop();
 	if (str.size() != 0)
 		_speechState = SPEAKING;
+	_lastSaid = str;
 	if(spd_say(_connection, SPD_MESSAGE, str.c_str()) == -1) {
 		//restart the connection
 		if (_connection != 0)

backends/text-to-speech/linux/linux-text-to-speech.h

@@ -72,6 +72,7 @@ private:
 	void createVoice(int typeNumber, Common::TTSVoice::Gender, Common::TTSVoice::Age, char *description);
 	SpeechState _speechState;
 	Common::String strToUtf8(Common::String str, Common::String charset);
+	Common::String _lastSaid;
 };
 
 #endif

backends/text-to-speech/windows/windows-text-to-speech.cpp

@@ -88,6 +88,7 @@ void WindowsTextToSpeechManager::init() {
 		_speechState = READY;
 	else
 		_speechState = NO_VOICE;
+	_lastSaid = "";
 }
 
 WindowsTextToSpeechManager::~WindowsTextToSpeechManager() {
@@ -105,6 +106,12 @@ bool WindowsTextToSpeechManager::say(Common::String str, Action action, Common::
 	if (isSpeaking() && action == DROP)
 		return true;
 
+	if (isSpeaking() && action == INTERRUPT_NO_REPEAT && _lastSaid == str)
+		return true;
+
+	if (isSpeaking() && action == QUEUE_NO_REPEAT && _lastSaid == str)
+		return true;
+
 	if (charset.empty()) {
 #ifdef USE_TRANSLATION
 		charset = TransMan.getCurrentCharset();
@@ -112,6 +119,7 @@ bool WindowsTextToSpeechManager::say(Common::String str, Action action, Common::
 		charset = "ASCII";
 #endif
 	}
+	_lastSaid = str;
 	// We have to set the pitch by prepending xml code at the start of the said string;
 	Common::String pitch= Common::String::format("<pitch absmiddle=\"%d\">", _ttsState->_pitch / 10);
 	str.replace((uint32)0, 0, pitch);

backends/text-to-speech/windows/windows-text-to-speech.h

@@ -71,6 +71,7 @@ private:
 	void createVoice(void *cpVoiceToken);
 	Common::String lcidToLocale(Common::String lcid);
 	SpeechState _speechState;
+	Common::String _lastSaid;
 };
 
 #endif

common/text-to-speech.h

@@ -138,7 +138,9 @@ class TextToSpeechManager {
 public:
 	enum Action {
 		INTERRUPT,
+		INTERRUPT_NO_REPEAT,
 		QUEUE,
+		QUEUE_NO_REPEAT,
 		DROP
 	};
 	/**
@@ -156,7 +158,7 @@ public:
 	 * @param charset The encoding of the string. If empty this is assumed to be the
 	 *        encoding used for the GUI.
 	 */
-	bool say(String str, String charset = "") { return say(str, INTERRUPT, charset); }
+	bool say(String str, String charset = "") { return say(str, INTERRUPT_NO_REPEAT, charset); }
 
 	/**
 	 * Says the given string