Music.hpp

// Copyright (C) 2017 Jérôme Leclercq
// This file is part of the "Nazara Engine - Audio module"
// For conditions of distribution and use, see copyright notice in Config.hpp

#pragma once

#ifndef NAZARA_MUSIC_HPP
#define NAZARA_MUSIC_HPP

#include <Nazara/Prerequesites.hpp>
#include <Nazara/Audio/Enums.hpp>
#include <Nazara/Audio/SoundEmitter.hpp>
#include <Nazara/Core/MovablePtr.hpp>
#include <Nazara/Core/Resource.hpp>
#include <Nazara/Core/ResourceLoader.hpp>
#include <Nazara/Core/ResourceParameters.hpp>

namespace Nz
{
    struct MusicParams : ResourceParameters
    {
        bool forceMono = false;

        bool IsValid() const;
    };

    class Music;
    class SoundStream;

    using MusicLoader = ResourceLoader<Music, MusicParams>;

    struct MusicImpl;

    class NAZARA_AUDIO_API Music : public Resource, public SoundEmitter
    {
        friend MusicLoader;

        public:
            Music() = default;
            Music(const Music&) = delete;
            Music(Music&&) = delete;
            ~Music();

            bool Create(SoundStream* soundStream);
            void Destroy();

            void EnableLooping(bool loop) override;

            UInt32 GetDuration() const override;
            AudioFormat GetFormat() const;
            UInt32 GetPlayingOffset() const override;
            UInt64 GetSampleCount() const;
            UInt32 GetSampleRate() const;
            SoundStatus GetStatus() const override;

            bool IsLooping() const override;

            bool OpenFromFile(const String& filePath, const MusicParams& params = MusicParams());
            bool OpenFromMemory(const void* data, std::size_t size, const MusicParams& params = MusicParams());
            bool OpenFromStream(Stream& stream, const MusicParams& params = MusicParams());

            void Pause() override;
            void Play() override;

            void SetPlayingOffset(UInt32 offset);

            void Stop() override;

            Music& operator=(const Music&) = delete;
            Music& operator=(Music&&) = delete;

        private:
            MovablePtr<MusicImpl> m_impl = nullptr;

            bool FillAndQueueBuffer(unsigned int buffer);
            void MusicThread();
            void StopThread();

            static MusicLoader::LoaderList s_loaders;
    };
}

#endif // NAZARA_MUSIC_HPP