android-text-to-speech.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef BACKENDS_TEXT_TO_SPEECH_ANDROID_H
#define BACKENDS_TEXT_TO_SPEECH_ANDROID_H

#include <jni.h>

#include "common/scummsys.h"

#if defined(USE_TTS)

#include "common/text-to-speech.h"
#include "common/str.h"
#include "common/ustr.h"
#include "common/list.h"


class AndroidTextToSpeechManager final : public Common::TextToSpeechManager {
public:
    enum SpeechState {
        BROKEN,
        READY,
        SPEAKING,
        PAUSED,
    };

    static void initJNI(JNIEnv *env);

    AndroidTextToSpeechManager();
    ~AndroidTextToSpeechManager() override;

    bool say(const Common::U32String &str, Action action) override;

    bool stop() override;
    bool pause() override;
    bool resume() override;

    bool isSpeaking() override { return getState() == SPEAKING; }
    bool isPaused() override { return getState() == PAUSED; }
    bool isReady() override { return getState() == READY; }

    void setVoice(unsigned index) override;
    void freeVoiceData(void *data) override { delete (int *)data; }

    void setLanguage(Common::String language) override;

private:
    static void updateVoices(JNIEnv *env, jobject obj, jobjectArray voices);
    void updateVoices() override { setLanguage(_ttsState->_language); }

    int getState() const;

    jobject _tts;

    static jmethodID _MID_shutdown;
    static jmethodID _MID_getState;
    static jmethodID _MID_setLanguage;
    static jmethodID _MID_stop;
    static jmethodID _MID_pause;
    static jmethodID _MID_resume;
    static jmethodID _MID_say;

    static const JNINativeMethod _natives[];

    static bool _init;
};


#endif

#endif // BACKENDS_UPDATES_ANDROID_H