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#pragma once
typedef int HMAS_AudioId;
enum HMAS_ChannelId {
HMAS_MUSIC,
HMAS_SFX,
HMAS_ENV,
HMAS_MAX_CHANNELS
};
enum HMAS_EffectType {
HMAS_EFFECT_VOLUME,
HMAS_EFFECT_PITCH,
HMAS_EFFECT_PAUSE,
HMAS_EFFECT_STOP
};
enum HMAS_EffectTransition {
HMAS_LINEAR,
HMAS_INSTANT
};
#ifdef __cplusplus
#include <string>
#include <vector>
#include <cstdint>
#include <unordered_map>
#include "audio/miniaudio.h"
struct HMAS_Loop {
int64_t start;
int64_t end;
};
struct HMAS_Info {
HMAS_Loop loop = { -1, -1 };
std::string name;
std::string author;
std::string date;
};
struct HMAS_Sample {
ma_sound sound;
ma_decoder decoder;
HMAS_Info info;
};
struct HMAS_Effect {
HMAS_EffectType type;
HMAS_EffectTransition transition;
uint32_t numFrames;
float target;
};
struct HMAS_ChannelInfo {
ma_sound* sound;
ma_uint64 cursor;
float pitch;
float volume;
std::vector<HMAS_Effect> effects;
};
class HMAS {
public:
HMAS();
~HMAS();
void RegisterSound(HMAS_AudioId id, const std::string& filePath, HMAS_Info info = {});
void RegisterSound(HMAS_AudioId id, uint8_t* data, uint32_t size, HMAS_Info info = {});
void Play(HMAS_ChannelId channel, HMAS_AudioId id, bool loop = false);
void Stop(HMAS_ChannelId channel);
bool IsPlaying(HMAS_ChannelId channel);
void SetPitch(HMAS_ChannelId channel, float pitch);
void SetVolume(HMAS_ChannelId channel, float volume);
void SetPause(HMAS_ChannelId channel, bool pause);
void AddEffect(HMAS_ChannelId channel, HMAS_EffectType type, HMAS_EffectTransition transition, uint32_t frames, float target);
bool IsIDRegistered(HMAS_AudioId id);
void ProcessEffects();
void CreateBuffer(uint8_t* samples, uint32_t num_samples);
float Lerp(float a, float b, float t) {
return a + (b - a) * t;
}
private:
ma_engine gAudioEngine;
HMAS_ChannelInfo gChannelSound[HMAS_MAX_CHANNELS] = { 0 };
std::unordered_map<HMAS_AudioId, HMAS_Sample> gRegistry;
};
extern "C" {
#endif
void HMAS_Play(enum HMAS_ChannelId channel, HMAS_AudioId id, bool loop);
void HMAS_Stop(enum HMAS_ChannelId channel);
bool HMAS_IsPlaying(enum HMAS_ChannelId channel);
void HMAS_SetPitch(enum HMAS_ChannelId channel, float pitch);
void HMAS_SetVolume(enum HMAS_ChannelId channel, float volume);
void HMAS_SetPause(enum HMAS_ChannelId channel, bool pause);
void HMAS_AddEffect(enum HMAS_ChannelId channel, enum HMAS_EffectType type, enum HMAS_EffectTransition transition, uint32_t frames, float target);
bool HMAS_IsIDRegistered(HMAS_AudioId id);
#ifdef __cplusplus
}
#endif
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