1 /* ScummVM - Graphic Adventure Engine
2  *
3  * ScummVM is the legal property of its developers, whose names
4  * are too numerous to list here. Please refer to the COPYRIGHT
5  * file distributed with this source distribution.
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License
9  * as published by the Free Software Foundation; either version 2
10  * of the License, or (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20  *
21  */
22 
23 #ifndef GLK_SPEECH_H
24 #define GLK_SPEECH_H
25 
26 #include "common/events.h"
27 #include "glk/glk_types.h"
28 #include "common/ustr.h"
29 
30 #if defined(USE_TTS)
31 #include "common/text-to-speech.h"
32 #endif
33 
34 namespace Glk {
35 
36 class Speech;
37 
38 class SpeechManager {
39 public:
40 	static SpeechManager* getSpeechManagerInstance();
41 	void releaseSpeechManagerInstance();
42 
43 	void speak(const Common::U32String &, Speech *);
44 	void stopSpeech(Speech *);
45 
46 	static void syncSoundSettings();
47 
48 private:
49 	SpeechManager();
50 	~SpeechManager();
51 
52 	static SpeechManager *_instance;
53 	int _refCount;
54 
55 #if defined(USE_TTS)
56 	Common::TextToSpeechManager *_ttsMan;
57 	Speech *_lastSpeechSource;
58 #endif
59 };
60 
61 
62 class Speech {
63 private:
64 	SpeechManager *_speechManager;
65 	Common::U32String _speechBuffer;
66 
67 protected:
68 	Speech();
69 	~Speech();
70 
71 	void gli_initialize_tts(void);
72 
73 	void gli_tts_flush(void);
74 
75 	void gli_tts_purge(void);
76 
77 	void gli_tts_speak(const uint32 *buf, size_t len);
78 	void gli_tts_speak(const char *buf, size_t len);
79 
80 	void gli_free_tts(void);
81 };
82 
83 } // End of namespace Glk
84 
85 #endif
86