emscriptensdl-mixer.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_MIXER_EMSCRIPTENSDL_H
#define BACKENDS_MIXER_EMSCRIPTENSDL_H

#include "backends/mixer/sdl/sdl-mixer.h"
#include "common/queue.h"

class EmscriptenSdlMixerManager : public SdlMixerManager {
public:
#if SDL_VERSION_ATLEAST(3, 0, 0)
    EmscriptenSdlMixerManager();
    virtual ~EmscriptenSdlMixerManager();
#endif

protected:
    void startAudio() override;

    void suspendAudio() override;

    int resumeAudio() override;

#if SDL_VERSION_ATLEAST(3, 0, 0)
    void startTimer(int interval = 10 * 1000);
    void stopTimer();
    static void updateMixer(void *refCon);

    static void emscriptenSdl3Callback(void *userdata, SDL_AudioStream *stream, int additional_amount, int total_amount);

    int _lastRequestedAmount = -1;
    uint32 _requestTimestamp = 0;
    bool _timerStarted = false;
    Common::Queue<Common::Pair<int, Uint8 *> > *_dataBuffers;
#endif
};

#endif