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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef _EFX_H_
#define _EFX_H_
#include <string>
#include <al.h>
#include <alc.h>
#include <efx.h>
#include "EFXPresets.h"
#include "System/UnorderedMap.hpp"
/// Default sound effects system implementation
class CEFX
{
public:
void Init(ALCdevice* device);
void Kill();
void ResetState() {
updates = 0;
maxSlots = 0;
enabled = false;
supported = false;
sfxProperties = {};
sfxSlot = 0;
sfxReverb = 0;
sfxFilter = 0;
maxSlotsPerSource = 0;
airAbsorptionFactor = 0.0f;
heightRolloffModifier = 1.0f;
effectsSupported.clear();
filtersSupported.clear();
}
void SetPreset(const std::string& name, bool verbose = true, bool commit = true);
void CommitEffects(const EAXSfxProps* sfxProps = nullptr);
void Enable();
void Disable();
void SetHeightRolloffModifer(float mod);
bool Enabled() const { return enabled; }
bool Supported() const { return supported; }
public:
/// @see ConfigHandler::ConfigNotifyCallback
void ConfigNotify(const std::string& key, const std::string& value);
void SetAirAbsorptionFactor(ALfloat value);
ALfloat GetAirAbsorptionFactor() const { return airAbsorptionFactor; }
public:
int updates = 0;
int maxSlots = 0;
bool enabled = false;
bool supported = false;
EAXSfxProps sfxProperties;
ALuint sfxSlot = 0;
ALuint sfxReverb = 0;
ALuint sfxFilter = 0;
ALuint maxSlotsPerSource = 0;
private:
ALfloat airAbsorptionFactor = 0.0f;
// reduces the rolloff when camera is high above the ground (so we still hear something in tab mode or far zoom)
float heightRolloffModifier = 1.0f;
private:
// information about the supported features
spring::unsynced_map<ALuint, bool> effectsSupported;
spring::unsynced_map<ALuint, bool> filtersSupported;
};
// initialized in Sound.cpp
extern CEFX efx;
#endif // _EFX_H_
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