mirror of https://github.com/axmolengine/axmol.git
131 lines
4.1 KiB
C++
131 lines
4.1 KiB
C++
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#include "config.h"
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#include <stdexcept>
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#include "AL/al.h"
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#include "AL/efx.h"
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#include "alc/effects/base.h"
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#include "aloptional.h"
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#include "effects.h"
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namespace {
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al::optional<FShifterDirection> DirectionFromEmum(ALenum value)
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{
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switch(value)
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{
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case AL_FREQUENCY_SHIFTER_DIRECTION_DOWN: return al::make_optional(FShifterDirection::Down);
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case AL_FREQUENCY_SHIFTER_DIRECTION_UP: return al::make_optional(FShifterDirection::Up);
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case AL_FREQUENCY_SHIFTER_DIRECTION_OFF: return al::make_optional(FShifterDirection::Off);
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}
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return al::nullopt;
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}
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ALenum EnumFromDirection(FShifterDirection dir)
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{
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switch(dir)
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{
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case FShifterDirection::Down: return AL_FREQUENCY_SHIFTER_DIRECTION_DOWN;
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case FShifterDirection::Up: return AL_FREQUENCY_SHIFTER_DIRECTION_UP;
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case FShifterDirection::Off: return AL_FREQUENCY_SHIFTER_DIRECTION_OFF;
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}
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throw std::runtime_error{"Invalid direction: "+std::to_string(static_cast<int>(dir))};
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}
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void Fshifter_setParamf(EffectProps *props, ALenum param, float val)
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{
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switch(param)
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{
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case AL_FREQUENCY_SHIFTER_FREQUENCY:
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if(!(val >= AL_FREQUENCY_SHIFTER_MIN_FREQUENCY && val <= AL_FREQUENCY_SHIFTER_MAX_FREQUENCY))
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throw effect_exception{AL_INVALID_VALUE, "Frequency shifter frequency out of range"};
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props->Fshifter.Frequency = val;
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break;
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default:
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throw effect_exception{AL_INVALID_ENUM, "Invalid frequency shifter float property 0x%04x",
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param};
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}
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}
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void Fshifter_setParamfv(EffectProps *props, ALenum param, const float *vals)
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{ Fshifter_setParamf(props, param, vals[0]); }
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void Fshifter_setParami(EffectProps *props, ALenum param, int val)
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{
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switch(param)
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{
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case AL_FREQUENCY_SHIFTER_LEFT_DIRECTION:
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if(auto diropt = DirectionFromEmum(val))
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props->Fshifter.LeftDirection = *diropt;
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else
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throw effect_exception{AL_INVALID_VALUE,
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"Unsupported frequency shifter left direction: 0x%04x", val};
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break;
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case AL_FREQUENCY_SHIFTER_RIGHT_DIRECTION:
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if(auto diropt = DirectionFromEmum(val))
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props->Fshifter.RightDirection = *diropt;
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else
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throw effect_exception{AL_INVALID_VALUE,
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"Unsupported frequency shifter right direction: 0x%04x", val};
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break;
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default:
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throw effect_exception{AL_INVALID_ENUM,
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"Invalid frequency shifter integer property 0x%04x", param};
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}
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}
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void Fshifter_setParamiv(EffectProps *props, ALenum param, const int *vals)
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{ Fshifter_setParami(props, param, vals[0]); }
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void Fshifter_getParami(const EffectProps *props, ALenum param, int *val)
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{
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switch(param)
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{
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case AL_FREQUENCY_SHIFTER_LEFT_DIRECTION:
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*val = EnumFromDirection(props->Fshifter.LeftDirection);
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break;
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case AL_FREQUENCY_SHIFTER_RIGHT_DIRECTION:
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*val = EnumFromDirection(props->Fshifter.RightDirection);
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break;
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default:
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throw effect_exception{AL_INVALID_ENUM,
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"Invalid frequency shifter integer property 0x%04x", param};
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}
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}
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void Fshifter_getParamiv(const EffectProps *props, ALenum param, int *vals)
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{ Fshifter_getParami(props, param, vals); }
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void Fshifter_getParamf(const EffectProps *props, ALenum param, float *val)
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{
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switch(param)
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{
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case AL_FREQUENCY_SHIFTER_FREQUENCY:
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*val = props->Fshifter.Frequency;
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break;
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default:
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throw effect_exception{AL_INVALID_ENUM, "Invalid frequency shifter float property 0x%04x",
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param};
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}
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}
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void Fshifter_getParamfv(const EffectProps *props, ALenum param, float *vals)
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{ Fshifter_getParamf(props, param, vals); }
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EffectProps genDefaultProps() noexcept
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{
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EffectProps props{};
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props.Fshifter.Frequency = AL_FREQUENCY_SHIFTER_DEFAULT_FREQUENCY;
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props.Fshifter.LeftDirection = *DirectionFromEmum(AL_FREQUENCY_SHIFTER_DEFAULT_LEFT_DIRECTION);
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props.Fshifter.RightDirection = *DirectionFromEmum(AL_FREQUENCY_SHIFTER_DEFAULT_RIGHT_DIRECTION);
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return props;
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}
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} // namespace
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DEFINE_ALEFFECT_VTABLE(Fshifter);
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const EffectProps FshifterEffectProps{genDefaultProps()};
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