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#include "config.h"
#include <optional>
#include <stdexcept>
#include "AL/al.h"
#include "AL/efx.h"
#include "alc/effects/base.h"
#include "effects.h"
#ifdef ALSOFT_EAX
#include <cassert>
#include "alnumeric.h"
#include "al/eax/exception.h"
#include "al/eax/utils.h"
#endif // ALSOFT_EAX
namespace {
std::optional<ModulatorWaveform> WaveformFromEmum(ALenum value)
{
switch(value)
{
case AL_RING_MODULATOR_SINUSOID: return ModulatorWaveform::Sinusoid;
case AL_RING_MODULATOR_SAWTOOTH: return ModulatorWaveform::Sawtooth;
case AL_RING_MODULATOR_SQUARE: return ModulatorWaveform::Square;
}
return std::nullopt;
}
ALenum EnumFromWaveform(ModulatorWaveform type)
{
switch(type)
{
case ModulatorWaveform::Sinusoid: return AL_RING_MODULATOR_SINUSOID;
case ModulatorWaveform::Sawtooth: return AL_RING_MODULATOR_SAWTOOTH;
case ModulatorWaveform::Square: return AL_RING_MODULATOR_SQUARE;
}
throw std::runtime_error{"Invalid modulator waveform: " +
std::to_string(static_cast<int>(type))};
}
void Modulator_setParamf(EffectProps *props, ALenum param, float val)
{
switch(param)
{
case AL_RING_MODULATOR_FREQUENCY:
if(!(val >= AL_RING_MODULATOR_MIN_FREQUENCY && val <= AL_RING_MODULATOR_MAX_FREQUENCY))
throw effect_exception{AL_INVALID_VALUE, "Modulator frequency out of range: %f", val};
props->Modulator.Frequency = val;
break;
case AL_RING_MODULATOR_HIGHPASS_CUTOFF:
if(!(val >= AL_RING_MODULATOR_MIN_HIGHPASS_CUTOFF && val <= AL_RING_MODULATOR_MAX_HIGHPASS_CUTOFF))
throw effect_exception{AL_INVALID_VALUE, "Modulator high-pass cutoff out of range: %f", val};
props->Modulator.HighPassCutoff = val;
break;
default:
throw effect_exception{AL_INVALID_ENUM, "Invalid modulator float property 0x%04x", param};
}
}
void Modulator_setParamfv(EffectProps *props, ALenum param, const float *vals)
{ Modulator_setParamf(props, param, vals[0]); }
void Modulator_setParami(EffectProps *props, ALenum param, int val)
{
switch(param)
{
case AL_RING_MODULATOR_FREQUENCY:
case AL_RING_MODULATOR_HIGHPASS_CUTOFF:
Modulator_setParamf(props, param, static_cast<float>(val));
break;
case AL_RING_MODULATOR_WAVEFORM:
if(auto formopt = WaveformFromEmum(val))
props->Modulator.Waveform = *formopt;
else
throw effect_exception{AL_INVALID_VALUE, "Invalid modulator waveform: 0x%04x", val};
break;
default:
throw effect_exception{AL_INVALID_ENUM, "Invalid modulator integer property 0x%04x",
param};
}
}
void Modulator_setParamiv(EffectProps *props, ALenum param, const int *vals)
{ Modulator_setParami(props, param, vals[0]); }
void Modulator_getParami(const EffectProps *props, ALenum param, int *val)
{
switch(param)
{
case AL_RING_MODULATOR_FREQUENCY:
*val = static_cast<int>(props->Modulator.Frequency);
break;
case AL_RING_MODULATOR_HIGHPASS_CUTOFF:
*val = static_cast<int>(props->Modulator.HighPassCutoff);
break;
case AL_RING_MODULATOR_WAVEFORM:
*val = EnumFromWaveform(props->Modulator.Waveform);
break;
default:
throw effect_exception{AL_INVALID_ENUM, "Invalid modulator integer property 0x%04x",
param};
}
}
void Modulator_getParamiv(const EffectProps *props, ALenum param, int *vals)
{ Modulator_getParami(props, param, vals); }
void Modulator_getParamf(const EffectProps *props, ALenum param, float *val)
{
switch(param)
{
case AL_RING_MODULATOR_FREQUENCY:
*val = props->Modulator.Frequency;
break;
case AL_RING_MODULATOR_HIGHPASS_CUTOFF:
*val = props->Modulator.HighPassCutoff;
break;
default:
throw effect_exception{AL_INVALID_ENUM, "Invalid modulator float property 0x%04x", param};
}
}
void Modulator_getParamfv(const EffectProps *props, ALenum param, float *vals)
{ Modulator_getParamf(props, param, vals); }
EffectProps genDefaultProps() noexcept
{
EffectProps props{};
props.Modulator.Frequency = AL_RING_MODULATOR_DEFAULT_FREQUENCY;
props.Modulator.HighPassCutoff = AL_RING_MODULATOR_DEFAULT_HIGHPASS_CUTOFF;
props.Modulator.Waveform = *WaveformFromEmum(AL_RING_MODULATOR_DEFAULT_WAVEFORM);
return props;
}
} // namespace
DEFINE_ALEFFECT_VTABLE(Modulator);
const EffectProps ModulatorEffectProps{genDefaultProps()};
#ifdef ALSOFT_EAX
namespace {
using ModulatorCommitter = EaxCommitter<EaxModulatorCommitter>;
struct FrequencyValidator {
void operator()(float flFrequency) const
{
eax_validate_range<ModulatorCommitter::Exception>(
"Frequency",
flFrequency,
EAXRINGMODULATOR_MINFREQUENCY,
EAXRINGMODULATOR_MAXFREQUENCY);
}
}; // FrequencyValidator
struct HighPassCutOffValidator {
void operator()(float flHighPassCutOff) const
{
eax_validate_range<ModulatorCommitter::Exception>(
"High-Pass Cutoff",
flHighPassCutOff,
EAXRINGMODULATOR_MINHIGHPASSCUTOFF,
EAXRINGMODULATOR_MAXHIGHPASSCUTOFF);
}
}; // HighPassCutOffValidator
struct WaveformValidator {
void operator()(unsigned long ulWaveform) const
{
eax_validate_range<ModulatorCommitter::Exception>(
"Waveform",
ulWaveform,
EAXRINGMODULATOR_MINWAVEFORM,
EAXRINGMODULATOR_MAXWAVEFORM);
}
}; // WaveformValidator
struct AllValidator {
void operator()(const EAXRINGMODULATORPROPERTIES& all) const
{
FrequencyValidator{}(all.flFrequency);
HighPassCutOffValidator{}(all.flHighPassCutOff);
WaveformValidator{}(all.ulWaveform);
}
}; // AllValidator
} // namespace
template<>
struct ModulatorCommitter::Exception : public EaxException {
explicit Exception(const char *message) : EaxException{"EAX_RING_MODULATOR_EFFECT", message}
{ }
};
template<>
[[noreturn]] void ModulatorCommitter::fail(const char *message)
{
throw Exception{message};
}
template<>
bool ModulatorCommitter::commit(const EaxEffectProps &props)
{
if(props.mType == mEaxProps.mType
&& mEaxProps.mModulator.flFrequency == props.mModulator.flFrequency
&& mEaxProps.mModulator.flHighPassCutOff == props.mModulator.flHighPassCutOff
&& mEaxProps.mModulator.ulWaveform == props.mModulator.ulWaveform)
return false;
mEaxProps = props;
auto get_waveform = [](unsigned long form)
{
if(form == EAX_RINGMODULATOR_SINUSOID)
return ModulatorWaveform::Sinusoid;
if(form == EAX_RINGMODULATOR_SAWTOOTH)
return ModulatorWaveform::Sawtooth;
if(form == EAX_RINGMODULATOR_SQUARE)
return ModulatorWaveform::Square;
return ModulatorWaveform::Sinusoid;
};
mAlProps.Modulator.Frequency = props.mModulator.flFrequency;
mAlProps.Modulator.HighPassCutoff = props.mModulator.flHighPassCutOff;
mAlProps.Modulator.Waveform = get_waveform(props.mModulator.ulWaveform);
return true;
}
template<>
void ModulatorCommitter::SetDefaults(EaxEffectProps &props)
{
props.mType = EaxEffectType::Modulator;
props.mModulator.flFrequency = EAXRINGMODULATOR_DEFAULTFREQUENCY;
props.mModulator.flHighPassCutOff = EAXRINGMODULATOR_DEFAULTHIGHPASSCUTOFF;
props.mModulator.ulWaveform = EAXRINGMODULATOR_DEFAULTWAVEFORM;
}
template<>
void ModulatorCommitter::Get(const EaxCall &call, const EaxEffectProps &props)
{
switch(call.get_property_id())
{
case EAXRINGMODULATOR_NONE: break;
case EAXRINGMODULATOR_ALLPARAMETERS: call.set_value<Exception>(props.mModulator); break;
case EAXRINGMODULATOR_FREQUENCY: call.set_value<Exception>(props.mModulator.flFrequency); break;
case EAXRINGMODULATOR_HIGHPASSCUTOFF: call.set_value<Exception>(props.mModulator.flHighPassCutOff); break;
case EAXRINGMODULATOR_WAVEFORM: call.set_value<Exception>(props.mModulator.ulWaveform); break;
default: fail_unknown_property_id();
}
}
template<>
void ModulatorCommitter::Set(const EaxCall &call, EaxEffectProps &props)
{
switch (call.get_property_id())
{
case EAXRINGMODULATOR_NONE: break;
case EAXRINGMODULATOR_ALLPARAMETERS: defer<AllValidator>(call, props.mModulator); break;
case EAXRINGMODULATOR_FREQUENCY: defer<FrequencyValidator>(call, props.mModulator.flFrequency); break;
case EAXRINGMODULATOR_HIGHPASSCUTOFF: defer<HighPassCutOffValidator>(call, props.mModulator.flHighPassCutOff); break;
case EAXRINGMODULATOR_WAVEFORM: defer<WaveformValidator>(call, props.mModulator.ulWaveform); break;
default: fail_unknown_property_id();
}
}
#endif // ALSOFT_EAX
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