mirror of https://github.com/axmolengine/axmol.git
273 lines
7.9 KiB
C++
273 lines
7.9 KiB
C++
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#include "config.h"
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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 "effects.h"
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#ifdef ALSOFT_EAX
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#include "alnumeric.h"
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#include "al/eax/exception.h"
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#include "al/eax/utils.h"
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#endif // ALSOFT_EAX
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namespace {
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static_assert(EchoMaxDelay >= AL_ECHO_MAX_DELAY, "Echo max delay too short");
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static_assert(EchoMaxLRDelay >= AL_ECHO_MAX_LRDELAY, "Echo max left-right delay too short");
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void Echo_setParami(EffectProps*, ALenum param, int)
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{ throw effect_exception{AL_INVALID_ENUM, "Invalid echo integer property 0x%04x", param}; }
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void Echo_setParamiv(EffectProps*, ALenum param, const int*)
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{ throw effect_exception{AL_INVALID_ENUM, "Invalid echo integer-vector property 0x%04x", param}; }
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void Echo_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_ECHO_DELAY:
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if(!(val >= AL_ECHO_MIN_DELAY && val <= AL_ECHO_MAX_DELAY))
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throw effect_exception{AL_INVALID_VALUE, "Echo delay out of range"};
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props->Echo.Delay = val;
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break;
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case AL_ECHO_LRDELAY:
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if(!(val >= AL_ECHO_MIN_LRDELAY && val <= AL_ECHO_MAX_LRDELAY))
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throw effect_exception{AL_INVALID_VALUE, "Echo LR delay out of range"};
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props->Echo.LRDelay = val;
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break;
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case AL_ECHO_DAMPING:
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if(!(val >= AL_ECHO_MIN_DAMPING && val <= AL_ECHO_MAX_DAMPING))
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throw effect_exception{AL_INVALID_VALUE, "Echo damping out of range"};
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props->Echo.Damping = val;
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break;
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case AL_ECHO_FEEDBACK:
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if(!(val >= AL_ECHO_MIN_FEEDBACK && val <= AL_ECHO_MAX_FEEDBACK))
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throw effect_exception{AL_INVALID_VALUE, "Echo feedback out of range"};
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props->Echo.Feedback = val;
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break;
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case AL_ECHO_SPREAD:
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if(!(val >= AL_ECHO_MIN_SPREAD && val <= AL_ECHO_MAX_SPREAD))
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throw effect_exception{AL_INVALID_VALUE, "Echo spread out of range"};
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props->Echo.Spread = val;
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break;
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default:
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throw effect_exception{AL_INVALID_ENUM, "Invalid echo float property 0x%04x", param};
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}
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}
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void Echo_setParamfv(EffectProps *props, ALenum param, const float *vals)
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{ Echo_setParamf(props, param, vals[0]); }
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void Echo_getParami(const EffectProps*, ALenum param, int*)
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{ throw effect_exception{AL_INVALID_ENUM, "Invalid echo integer property 0x%04x", param}; }
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void Echo_getParamiv(const EffectProps*, ALenum param, int*)
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{ throw effect_exception{AL_INVALID_ENUM, "Invalid echo integer-vector property 0x%04x", param}; }
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void Echo_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_ECHO_DELAY:
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*val = props->Echo.Delay;
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break;
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case AL_ECHO_LRDELAY:
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*val = props->Echo.LRDelay;
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break;
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case AL_ECHO_DAMPING:
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*val = props->Echo.Damping;
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break;
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case AL_ECHO_FEEDBACK:
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*val = props->Echo.Feedback;
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break;
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case AL_ECHO_SPREAD:
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*val = props->Echo.Spread;
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break;
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default:
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throw effect_exception{AL_INVALID_ENUM, "Invalid echo float property 0x%04x", param};
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}
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}
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void Echo_getParamfv(const EffectProps *props, ALenum param, float *vals)
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{ Echo_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.Echo.Delay = AL_ECHO_DEFAULT_DELAY;
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props.Echo.LRDelay = AL_ECHO_DEFAULT_LRDELAY;
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props.Echo.Damping = AL_ECHO_DEFAULT_DAMPING;
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props.Echo.Feedback = AL_ECHO_DEFAULT_FEEDBACK;
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props.Echo.Spread = AL_ECHO_DEFAULT_SPREAD;
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return props;
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}
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} // namespace
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DEFINE_ALEFFECT_VTABLE(Echo);
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const EffectProps EchoEffectProps{genDefaultProps()};
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#ifdef ALSOFT_EAX
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namespace {
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using EchoCommitter = EaxCommitter<EaxEchoCommitter>;
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struct DelayValidator {
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void operator()(float flDelay) const
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{
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eax_validate_range<EchoCommitter::Exception>(
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"Delay",
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flDelay,
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EAXECHO_MINDELAY,
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EAXECHO_MAXDELAY);
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}
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}; // DelayValidator
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struct LrDelayValidator {
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void operator()(float flLRDelay) const
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{
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eax_validate_range<EchoCommitter::Exception>(
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"LR Delay",
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flLRDelay,
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EAXECHO_MINLRDELAY,
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EAXECHO_MAXLRDELAY);
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}
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}; // LrDelayValidator
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struct DampingValidator {
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void operator()(float flDamping) const
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{
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eax_validate_range<EchoCommitter::Exception>(
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"Damping",
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flDamping,
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EAXECHO_MINDAMPING,
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EAXECHO_MAXDAMPING);
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}
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}; // DampingValidator
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struct FeedbackValidator {
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void operator()(float flFeedback) const
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{
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eax_validate_range<EchoCommitter::Exception>(
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"Feedback",
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flFeedback,
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EAXECHO_MINFEEDBACK,
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EAXECHO_MAXFEEDBACK);
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}
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}; // FeedbackValidator
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struct SpreadValidator {
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void operator()(float flSpread) const
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{
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eax_validate_range<EchoCommitter::Exception>(
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"Spread",
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flSpread,
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EAXECHO_MINSPREAD,
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EAXECHO_MAXSPREAD);
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}
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}; // SpreadValidator
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struct AllValidator {
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void operator()(const EAXECHOPROPERTIES& all) const
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{
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DelayValidator{}(all.flDelay);
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LrDelayValidator{}(all.flLRDelay);
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DampingValidator{}(all.flDamping);
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FeedbackValidator{}(all.flFeedback);
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SpreadValidator{}(all.flSpread);
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}
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}; // AllValidator
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} // namespace
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template<>
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struct EchoCommitter::Exception : public EaxException {
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explicit Exception(const char* message) : EaxException{"EAX_ECHO_EFFECT", message}
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{ }
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};
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template<>
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[[noreturn]] void EchoCommitter::fail(const char *message)
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{
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throw Exception{message};
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}
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template<>
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bool EchoCommitter::commit(const EaxEffectProps &props)
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{
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if(props == mEaxProps)
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return false;
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mEaxProps = props;
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auto &eaxprops = std::get<EAXECHOPROPERTIES>(props);
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mAlProps.Echo.Delay = eaxprops.flDelay;
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mAlProps.Echo.LRDelay = eaxprops.flLRDelay;
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mAlProps.Echo.Damping = eaxprops.flDamping;
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mAlProps.Echo.Feedback = eaxprops.flFeedback;
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mAlProps.Echo.Spread = eaxprops.flSpread;
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return true;
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}
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template<>
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void EchoCommitter::SetDefaults(EaxEffectProps &props)
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{
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static constexpr EAXECHOPROPERTIES defprops{[]
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{
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EAXECHOPROPERTIES ret{};
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ret.flDelay = EAXECHO_DEFAULTDELAY;
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ret.flLRDelay = EAXECHO_DEFAULTLRDELAY;
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ret.flDamping = EAXECHO_DEFAULTDAMPING;
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ret.flFeedback = EAXECHO_DEFAULTFEEDBACK;
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ret.flSpread = EAXECHO_DEFAULTSPREAD;
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return ret;
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}()};
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props = defprops;
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}
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template<>
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void EchoCommitter::Get(const EaxCall &call, const EaxEffectProps &props_)
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{
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auto &props = std::get<EAXECHOPROPERTIES>(props_);
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switch(call.get_property_id())
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{
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case EAXECHO_NONE: break;
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case EAXECHO_ALLPARAMETERS: call.set_value<Exception>(props); break;
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case EAXECHO_DELAY: call.set_value<Exception>(props.flDelay); break;
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case EAXECHO_LRDELAY: call.set_value<Exception>(props.flLRDelay); break;
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case EAXECHO_DAMPING: call.set_value<Exception>(props.flDamping); break;
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case EAXECHO_FEEDBACK: call.set_value<Exception>(props.flFeedback); break;
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case EAXECHO_SPREAD: call.set_value<Exception>(props.flSpread); break;
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default: fail_unknown_property_id();
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}
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}
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template<>
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void EchoCommitter::Set(const EaxCall &call, EaxEffectProps &props_)
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{
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auto &props = std::get<EAXECHOPROPERTIES>(props_);
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switch(call.get_property_id())
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{
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case EAXECHO_NONE: break;
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case EAXECHO_ALLPARAMETERS: defer<AllValidator>(call, props); break;
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case EAXECHO_DELAY: defer<DelayValidator>(call, props.flDelay); break;
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case EAXECHO_LRDELAY: defer<LrDelayValidator>(call, props.flLRDelay); break;
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case EAXECHO_DAMPING: defer<DampingValidator>(call, props.flDamping); break;
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case EAXECHO_FEEDBACK: defer<FeedbackValidator>(call, props.flFeedback); break;
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case EAXECHO_SPREAD: defer<SpreadValidator>(call, props.flSpread); break;
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default: fail_unknown_property_id();
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}
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}
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#endif // ALSOFT_EAX
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