mgl_audio_defs.h

[詳解]

// SPDX-License-Identifier: Zlib
/* ------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------- */
 
#ifndef INCGUARD_MGL_AUDIO_DEFS_H_1610828927
#define INCGUARD_MGL_AUDIO_DEFS_H_1610828927
 
#include <cstddef>
#include <cstdint>
 
#include <mgl/hash/mgl_hash_fnv1a.h>
 
namespace MGL::Audio
{
enum class VoiceKey : uint32_t {};
 
constexpr uint32_t kDefaultVoiceKeySeed = MGL::Hash::kFNV1aDefaultValue32;    // 32bitの値なら何でもいい．衝突する場合は変更を．
 
/* ------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------- */
constexpr VoiceKey MakeVoiceKey(const char *key, uint32_t seed = kDefaultVoiceKeySeed) noexcept
{
    return VoiceKey{MGL::Hash::FNV1a(key, seed)};
}
 
enum class InitializeMode : uint8_t
{
    None,             
    Sample44k1ch,     
    Sample44k2ch,     
    Sample22k1ch,     
    Sample22k2ch,     
    SystemDefault,    
};
 
enum class SampleType : uint8_t
{
    SignedInt,      
    UnsignedInt,    
    Float,          
};
 
struct DataFormat
{
    float samplesPerSec{0};                      
    SampleType sampleType{SampleType::Float};    
    size_t bitsPerSample{0};                     
    size_t channelCount{0};                      
    bool isInterleaved{false};                   
};
 
enum class LoopType : uint8_t
{
    Disable,           
    Enable,            
    ResourceDefault    
};
 
/* ------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------- */
[[nodiscard]] constexpr bool ToLoopFlag(LoopType loopType, bool defaultValue = false) noexcept
{
    switch (loopType)
    {
        case LoopType::Disable:
            return false;
 
        case LoopType::Enable:
            return true;
 
        case LoopType::ResourceDefault:
            return defaultValue;
    }
 
    return defaultValue;
}
}    // namespace MGL::Audio
 
#endif    // INCGUARD_MGL_AUDIO_DEFS_H_1610828927
 
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