mgl_audio_wave_voice.h

[詳解]

// SPDX-License-Identifier: Zlib
/* ------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------- */
 
#ifndef INCGUARD_MGL_AUDIO_WAVE_VOICE_H_1611869697
#define INCGUARD_MGL_AUDIO_WAVE_VOICE_H_1611869697
 
#include <mgl/audio/voice/mgl_audio_voice.h>
#include <mgl/audio/voice/mgl_audio_wave_loader.h>
 
#include <future>
 
namespace MGL::Audio
{
class WaveVoice : public Voice
{
public:
    WaveVoice(VoiceKey key, const File::PathView &path, bool isLoop = false, uint32_t loopFrame = 0) noexcept;
 
    bool Load() noexcept override;
    bool GetSample(float &outDataL, float &outDataR, uint32_t trackIndex, size_t sampleFrame) const noexcept override;
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    uint32_t GetTotalFrame([[maybe_unused]] uint32_t trackIndex) const noexcept override
    {
        return _totalFrame;
    }
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    bool IsLoop([[maybe_unused]] uint32_t trackIndex) const noexcept override
    {
        return _isLoop;
    }
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    uint32_t GetLoopFrame([[maybe_unused]] uint32_t trackIndex) const noexcept override
    {
        return _loopFrame;
    }
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    uint32_t GetTrackCount() const noexcept override
    {
        return 1;
    }
 
private:
    bool LoadWaveFile() noexcept;
 
    File::Path _path;
    WaveLoader::Format _format{};
    bool _isLoop;
    STL::unique_ptr<std::byte[]> _data{nullptr};
    size_t _dataSize{0};
    uint32_t _totalFrame{0};
    uint32_t _loopFrame;
    std::future<void> _future;
};
}    // namespace MGL::Audio
 
#endif    // INCGUARD_MGL_AUDIO_WAVE_VOICE_H_1611869697
 
// vim: et ts=4 sw=4 sts=4