SoundBuffer.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_SOUNDBUFFER_HPP
#define NAZARA_SOUNDBUFFER_HPP

#include <Nazara/Prerequesites.hpp>
#include <Nazara/Audio/Config.hpp>
#include <Nazara/Audio/Enums.hpp>
#include <Nazara/Core/MovablePtr.hpp>
#include <Nazara/Core/ObjectRef.hpp>
#include <Nazara/Core/ObjectLibrary.hpp>
#include <Nazara/Core/RefCounted.hpp>
#include <Nazara/Core/Resource.hpp>
#include <Nazara/Core/ResourceLoader.hpp>
#include <Nazara/Core/ResourceManager.hpp>
#include <Nazara/Core/ResourceParameters.hpp>
#include <Nazara/Core/Signal.hpp>

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

        bool IsValid() const;
    };

    class Sound;
    class SoundBuffer;

    using SoundBufferConstRef = ObjectRef<const SoundBuffer>;
    using SoundBufferLibrary = ObjectLibrary<SoundBuffer>;
    using SoundBufferLoader = ResourceLoader<SoundBuffer, SoundBufferParams>;
    using SoundBufferManager = ResourceManager<SoundBuffer, SoundBufferParams>;
    using SoundBufferRef = ObjectRef<SoundBuffer>;

    struct SoundBufferImpl;

    class NAZARA_AUDIO_API SoundBuffer : public RefCounted, public Resource
    {
        friend Sound;
        friend SoundBufferLibrary;
        friend SoundBufferLoader;
        friend SoundBufferManager;
        friend class Audio;

        public:
            SoundBuffer() = default;
            SoundBuffer(AudioFormat format, UInt64 sampleCount, UInt32 sampleRate, const Int16* samples);
            SoundBuffer(const SoundBuffer&) = delete;
            SoundBuffer(SoundBuffer&&) = delete;
            ~SoundBuffer();

            bool Create(AudioFormat format, UInt64 sampleCount, UInt32 sampleRate, const Int16* samples);
            void Destroy();

            UInt32 GetDuration() const;
            AudioFormat GetFormat() const;
            const Int16* GetSamples() const;
            UInt64 GetSampleCount() const;
            UInt32 GetSampleRate() const;

            bool IsValid() const;

            bool LoadFromFile(const String& filePath, const SoundBufferParams& params = SoundBufferParams());
            bool LoadFromMemory(const void* data, std::size_t size, const SoundBufferParams& params = SoundBufferParams());
            bool LoadFromStream(Stream& stream, const SoundBufferParams& params = SoundBufferParams());

            static bool IsFormatSupported(AudioFormat format);
            template<typename... Args> static SoundBufferRef New(Args&&... args);

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

            // Signals:
            NazaraSignal(OnSoundBufferDestroy, const SoundBuffer* /*soundBuffer*/);
            NazaraSignal(OnSoundBufferRelease, const SoundBuffer* /*soundBuffer*/);

        private:
            unsigned int GetOpenALBuffer() const;

            static bool Initialize();
            static void Uninitialize();

            MovablePtr<SoundBufferImpl> m_impl = nullptr;

            static SoundBufferLibrary::LibraryMap s_library;
            static SoundBufferLoader::LoaderList s_loaders;
            static SoundBufferManager::ManagerMap s_managerMap;
            static SoundBufferManager::ManagerParams s_managerParameters;
    };
}

#include <Nazara/Audio/SoundBuffer.inl>

#endif // NAZARA_SOUNDBUFFER_HPP