TTS: Implement conversion to UTF-8 in say on linux

2 files changed, 29 insertions, 5 deletions

diff --git a/backends/text-to-speech/linux/linux-text-to-speech.cpp b/backends/text-to-speech/linux/linux-text-to-speech.cpp
index db036e053a..4241b76c7b 100644
--- a/backends/text-to-speech/linux/linux-text-to-speech.cpp
+++ b/backends/text-to-speech/linux/linux-text-to-speech.cpp
@@ -27,6 +27,7 @@
 
 #if defined(USE_LINUX_TTS)
 #include <speech-dispatcher/libspeechd.h>
+#include "backends/platform/sdl/sdl-sys.h"
 
 #include "common/translation.h"
 #include "common/debug.h"
@@ -107,13 +108,35 @@ void LinuxTextToSpeechManager::updateState(LinuxTextToSpeechManager::SpeechState
 	_speechState = state;
 }
 
-bool LinuxTextToSpeechManager::say(Common::String str) {
+Common::String LinuxTextToSpeechManager::strToUtf8(Common::String str, Common::String charset) {
+#if SDL_VERSION_ATLEAST(2, 0, 0)
+
+	char *conv_text = SDL_iconv_string("UTF-8", charset.c_str(), str.c_str(), str.size() + 1);
+	Common::String result;
+	if (conv_text) {
+		result = conv_text;
+		SDL_free(conv_text);
+	}
+
+	return result;
+#else
+	return Common::String();
+#endif
+}
+
+bool LinuxTextToSpeechManager::say(Common::String str, Common::String charset) {
 	if (_speechState == BROKEN)
 		return true;
-	//Convert string, that might have foreign characters to UTF-8
-	if (ConfMan.get("gui_language") != "C") {
-		str = Common::convertUtf32ToUtf8(Common::convertToU32String(str.c_str(), Common::kWindows1250)).c_str();
+	
+	if (charset == "") {
+#ifdef USE_TRANSLATION
+		charset = TransMan.getCurrentCharset();
+#else
+		charset = "ASCII";
+#endif
 	}
+	str = strToUtf8(str, charset);
+
 	if (isSpeaking())
 		stop();
 	debug("say: %s", str.c_str());
diff --git a/backends/text-to-speech/linux/linux-text-to-speech.h b/backends/text-to-speech/linux/linux-text-to-speech.h
index 57b9aeea60..1bb3ad5ce2 100644
--- a/backends/text-to-speech/linux/linux-text-to-speech.h
+++ b/backends/text-to-speech/linux/linux-text-to-speech.h
@@ -42,7 +42,7 @@ public:
 	LinuxTextToSpeechManager();
 	virtual ~LinuxTextToSpeechManager();
 
-	virtual bool say(Common::String str);
+	virtual bool say(Common::String str, Common::String charset = "");
 
 	virtual bool stop();
 	virtual bool pause();
@@ -74,6 +74,7 @@ private:
 	virtual void updateVoices();
 	void createVoice(int typeNumber, Common::TTSVoice::Gender, Common::TTSVoice::Age, char *description);
 	SpeechState _speechState;
+	Common::String strToUtf8(Common::String str, Common::String charset);
 };
 
 #endif