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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))};
}
EffectProps genDefaultProps() noexcept
{
ModulatorProps props{};
props.Frequency = AL_RING_MODULATOR_DEFAULT_FREQUENCY;
props.HighPassCutoff = AL_RING_MODULATOR_DEFAULT_HIGHPASS_CUTOFF;
props.Waveform = *WaveformFromEmum(AL_RING_MODULATOR_DEFAULT_WAVEFORM);
return props;
}
} // namespace
const EffectProps ModulatorEffectProps{genDefaultProps()};
void EffectHandler::SetParami(ModulatorProps &props, ALenum param, int val)
{
switch(param)
{
case AL_RING_MODULATOR_FREQUENCY:
case AL_RING_MODULATOR_HIGHPASS_CUTOFF:
SetParamf(props, param, static_cast<float>(val));
break;
case AL_RING_MODULATOR_WAVEFORM:
if(auto formopt = WaveformFromEmum(val))
props.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 EffectHandler::SetParamiv(ModulatorProps &props, ALenum param, const int *vals)
{ SetParami(props, param, vals[0]); }
void EffectHandler::SetParamf(ModulatorProps &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.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.HighPassCutoff = val;
break;
default:
throw effect_exception{AL_INVALID_ENUM, "Invalid modulator float property 0x%04x", param};
}
}
void EffectHandler::SetParamfv(ModulatorProps &props, ALenum param, const float *vals)
{ SetParamf(props, param, vals[0]); }
void EffectHandler::GetParami(const ModulatorProps &props, ALenum param, int *val)
{
switch(param)
{
case AL_RING_MODULATOR_FREQUENCY: *val = static_cast<int>(props.Frequency); break;
case AL_RING_MODULATOR_HIGHPASS_CUTOFF: *val = static_cast<int>(props.HighPassCutoff); break;
case AL_RING_MODULATOR_WAVEFORM: *val = EnumFromWaveform(props.Waveform); break;
default:
throw effect_exception{AL_INVALID_ENUM, "Invalid modulator integer property 0x%04x",
param};
}
}
void EffectHandler::GetParamiv(const ModulatorProps &props, ALenum param, int *vals)
{ GetParami(props, param, vals); }
void EffectHandler::GetParamf(const ModulatorProps &props, ALenum param, float *val)
{
switch(param)
{
case AL_RING_MODULATOR_FREQUENCY: *val = props.Frequency; break;
case AL_RING_MODULATOR_HIGHPASS_CUTOFF: *val = props.HighPassCutoff; break;
default:
throw effect_exception{AL_INVALID_ENUM, "Invalid modulator float property 0x%04x", param};
}
}
void EffectHandler::GetParamfv(const ModulatorProps &props, ALenum param, float *vals)
{ GetParamf(props, param, vals); }
#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};
}
bool EaxModulatorCommitter::commit(const EAXRINGMODULATORPROPERTIES &props)
{
if(auto *cur = std::get_if<EAXRINGMODULATORPROPERTIES>(&mEaxProps); cur && *cur == props)
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 = [&]{
ModulatorProps ret{};
ret.Frequency = props.flFrequency;
ret.HighPassCutoff = props.flHighPassCutOff;
ret.Waveform = get_waveform(props.ulWaveform);
return ret;
}();
return true;
}
void EaxModulatorCommitter::SetDefaults(EaxEffectProps &props)
{
static constexpr EAXRINGMODULATORPROPERTIES defprops{[]
{
EAXRINGMODULATORPROPERTIES ret{};
ret.flFrequency = EAXRINGMODULATOR_DEFAULTFREQUENCY;
ret.flHighPassCutOff = EAXRINGMODULATOR_DEFAULTHIGHPASSCUTOFF;
ret.ulWaveform = EAXRINGMODULATOR_DEFAULTWAVEFORM;
return ret;
}()};
props = defprops;
}
void EaxModulatorCommitter::Get(const EaxCall &call, const EAXRINGMODULATORPROPERTIES &props)
{
switch(call.get_property_id())
{
case EAXRINGMODULATOR_NONE: break;
case EAXRINGMODULATOR_ALLPARAMETERS: call.set_value<Exception>(props); break;
case EAXRINGMODULATOR_FREQUENCY: call.set_value<Exception>(props.flFrequency); break;
case EAXRINGMODULATOR_HIGHPASSCUTOFF: call.set_value<Exception>(props.flHighPassCutOff); break;
case EAXRINGMODULATOR_WAVEFORM: call.set_value<Exception>(props.ulWaveform); break;
default: fail_unknown_property_id();
}
}
void EaxModulatorCommitter::Set(const EaxCall &call, EAXRINGMODULATORPROPERTIES &props)
{
switch(call.get_property_id())
{
case EAXRINGMODULATOR_NONE: break;
case EAXRINGMODULATOR_ALLPARAMETERS: defer<AllValidator>(call, props); break;
case EAXRINGMODULATOR_FREQUENCY: defer<FrequencyValidator>(call, props.flFrequency); break;
case EAXRINGMODULATOR_HIGHPASSCUTOFF: defer<HighPassCutOffValidator>(call, props.flHighPassCutOff); break;
case EAXRINGMODULATOR_WAVEFORM: defer<WaveformValidator>(call, props.ulWaveform); break;
default: fail_unknown_property_id();
}
}
#endif // ALSOFT_EAX
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