al/effects/chorus.cpp

   1
   2 #include "config.h"
   3
   4 #include <optional>
   5 #include <stdexcept>
   6
   7 #include "AL/al.h"
   8 #include "AL/efx.h"
   9
  10 #include "effects.h"
  11
  12 #if ALSOFT_EAX
  13 #include <cassert>
  14 #include "al/eax/effect.h"
  15 #include "al/eax/exception.h"
  16 #include "al/eax/utils.h"
  17 #endif // ALSOFT_EAX
  18
  19
  20 namespace {
  21
  22 static_assert(ChorusMaxDelay >= AL_CHORUS_MAX_DELAY, "Chorus max delay too small");
  23 static_assert(FlangerMaxDelay >= AL_FLANGER_MAX_DELAY, "Flanger max delay too small");
  24
  25 static_assert(AL_CHORUS_WAVEFORM_SINUSOID == AL_FLANGER_WAVEFORM_SINUSOID, "Chorus/Flanger waveform value mismatch");
  26 static_assert(AL_CHORUS_WAVEFORM_TRIANGLE == AL_FLANGER_WAVEFORM_TRIANGLE, "Chorus/Flanger waveform value mismatch");
  27
  28 constexpr std::optional<ChorusWaveform> WaveformFromEnum(ALenum type) noexcept
  29 {
  30     switch(type)
  31     {
  32     case AL_CHORUS_WAVEFORM_SINUSOID: return ChorusWaveform::Sinusoid;
  33     case AL_CHORUS_WAVEFORM_TRIANGLE: return ChorusWaveform::Triangle;
  34     }
  35     return std::nullopt;
  36 }
  37 constexpr ALenum EnumFromWaveform(ChorusWaveform type)
  38 {
  39     switch(type)
  40     {
  41     case ChorusWaveform::Sinusoid: return AL_CHORUS_WAVEFORM_SINUSOID;
  42     case ChorusWaveform::Triangle: return AL_CHORUS_WAVEFORM_TRIANGLE;
  43     }
  44     throw std::runtime_error{"Invalid chorus waveform: "+std::to_string(static_cast<int>(type))};
  45 }
  46
  47 constexpr EffectProps genDefaultChorusProps() noexcept
  48 {
  49     ChorusProps props{};
  50     props.Waveform = WaveformFromEnum(AL_CHORUS_DEFAULT_WAVEFORM).value();
  51     props.Phase = AL_CHORUS_DEFAULT_PHASE;
  52     props.Rate = AL_CHORUS_DEFAULT_RATE;
  53     props.Depth = AL_CHORUS_DEFAULT_DEPTH;
  54     props.Feedback = AL_CHORUS_DEFAULT_FEEDBACK;
  55     props.Delay = AL_CHORUS_DEFAULT_DELAY;
  56     return props;
  57 }
  58
  59 constexpr EffectProps genDefaultFlangerProps() noexcept
  60 {
  61     ChorusProps props{};
  62     props.Waveform = WaveformFromEnum(AL_FLANGER_DEFAULT_WAVEFORM).value();
  63     props.Phase = AL_FLANGER_DEFAULT_PHASE;
  64     props.Rate = AL_FLANGER_DEFAULT_RATE;
  65     props.Depth = AL_FLANGER_DEFAULT_DEPTH;
  66     props.Feedback = AL_FLANGER_DEFAULT_FEEDBACK;
  67     props.Delay = AL_FLANGER_DEFAULT_DELAY;
  68     return props;
  69 }
  70
  71 } // namespace
  72
  73 const EffectProps ChorusEffectProps{genDefaultChorusProps()};
  74
  75 void ChorusEffectHandler::SetParami(ChorusProps &props, ALenum param, int val)
  76 {
  77     switch(param)
  78     {
  79     case AL_CHORUS_WAVEFORM:
  80         if(auto formopt = WaveformFromEnum(val))
  81             props.Waveform = *formopt;
  82         else
  83             throw effect_exception{AL_INVALID_VALUE, "Invalid chorus waveform: 0x%04x", val};
  84         break;
  85
  86     case AL_CHORUS_PHASE:
  87         if(!(val >= AL_CHORUS_MIN_PHASE && val <= AL_CHORUS_MAX_PHASE))
  88             throw effect_exception{AL_INVALID_VALUE, "Chorus phase out of range: %d", val};
  89         props.Phase = val;
  90         break;
  91
  92     default:
  93         throw effect_exception{AL_INVALID_ENUM, "Invalid chorus integer property 0x%04x", param};
  94     }
  95 }
  96 void ChorusEffectHandler::SetParamiv(ChorusProps &props, ALenum param, const int *vals)
  97 { SetParami(props, param, *vals); }
  98 void ChorusEffectHandler::SetParamf(ChorusProps &props, ALenum param, float val)
  99 {
 100     switch(param)
 101     {
 102     case AL_CHORUS_RATE:
 103         if(!(val >= AL_CHORUS_MIN_RATE && val <= AL_CHORUS_MAX_RATE))
 104             throw effect_exception{AL_INVALID_VALUE, "Chorus rate out of range: %f", val};
 105         props.Rate = val;
 106         break;
 107
 108     case AL_CHORUS_DEPTH:
 109         if(!(val >= AL_CHORUS_MIN_DEPTH && val <= AL_CHORUS_MAX_DEPTH))
 110             throw effect_exception{AL_INVALID_VALUE, "Chorus depth out of range: %f", val};
 111         props.Depth = val;
 112         break;
 113
 114     case AL_CHORUS_FEEDBACK:
 115         if(!(val >= AL_CHORUS_MIN_FEEDBACK && val <= AL_CHORUS_MAX_FEEDBACK))
 116             throw effect_exception{AL_INVALID_VALUE, "Chorus feedback out of range: %f", val};
 117         props.Feedback = val;
 118         break;
 119
 120     case AL_CHORUS_DELAY:
 121         if(!(val >= AL_CHORUS_MIN_DELAY && val <= AL_CHORUS_MAX_DELAY))
 122             throw effect_exception{AL_INVALID_VALUE, "Chorus delay out of range: %f", val};
 123         props.Delay = val;
 124         break;
 125
 126     default:
 127         throw effect_exception{AL_INVALID_ENUM, "Invalid chorus float property 0x%04x", param};
 128     }
 129 }
 130 void ChorusEffectHandler::SetParamfv(ChorusProps &props, ALenum param, const float *vals)
 131 { SetParamf(props, param, *vals); }
 132
 133 void ChorusEffectHandler::GetParami(const ChorusProps &props, ALenum param, int *val)
 134 {
 135     switch(param)
 136     {
 137     case AL_CHORUS_WAVEFORM: *val = EnumFromWaveform(props.Waveform); break;
 138     case AL_CHORUS_PHASE: *val = props.Phase; break;
 139
 140     default:
 141         throw effect_exception{AL_INVALID_ENUM, "Invalid chorus integer property 0x%04x", param};
 142     }
 143 }
 144 void ChorusEffectHandler::GetParamiv(const ChorusProps &props, ALenum param, int *vals)
 145 { GetParami(props, param, vals); }
 146 void ChorusEffectHandler::GetParamf(const ChorusProps &props, ALenum param, float *val)
 147 {
 148     switch(param)
 149     {
 150     case AL_CHORUS_RATE: *val = props.Rate; break;
 151     case AL_CHORUS_DEPTH: *val = props.Depth; break;
 152     case AL_CHORUS_FEEDBACK: *val = props.Feedback; break;
 153     case AL_CHORUS_DELAY: *val = props.Delay; break;
 154
 155     default:
 156         throw effect_exception{AL_INVALID_ENUM, "Invalid chorus float property 0x%04x", param};
 157     }
 158 }
 159 void ChorusEffectHandler::GetParamfv(const ChorusProps &props, ALenum param, float *vals)
 160 { GetParamf(props, param, vals); }
 161
 162
 163 const EffectProps FlangerEffectProps{genDefaultFlangerProps()};
 164
 165 void FlangerEffectHandler::SetParami(ChorusProps &props, ALenum param, int val)
 166 {
 167     switch(param)
 168     {
 169     case AL_FLANGER_WAVEFORM:
 170         if(auto formopt = WaveformFromEnum(val))
 171             props.Waveform = *formopt;
 172         else
 173             throw effect_exception{AL_INVALID_VALUE, "Invalid flanger waveform: 0x%04x", val};
 174         break;
 175
 176     case AL_FLANGER_PHASE:
 177         if(!(val >= AL_FLANGER_MIN_PHASE && val <= AL_FLANGER_MAX_PHASE))
 178             throw effect_exception{AL_INVALID_VALUE, "Flanger phase out of range: %d", val};
 179         props.Phase = val;
 180         break;
 181
 182     default:
 183         throw effect_exception{AL_INVALID_ENUM, "Invalid flanger integer property 0x%04x", param};
 184     }
 185 }
 186 void FlangerEffectHandler::SetParamiv(ChorusProps &props, ALenum param, const int *vals)
 187 { SetParami(props, param, *vals); }
 188 void FlangerEffectHandler::SetParamf(ChorusProps &props, ALenum param, float val)
 189 {
 190     switch(param)
 191     {
 192     case AL_FLANGER_RATE:
 193         if(!(val >= AL_FLANGER_MIN_RATE && val <= AL_FLANGER_MAX_RATE))
 194             throw effect_exception{AL_INVALID_VALUE, "Flanger rate out of range: %f", val};
 195         props.Rate = val;
 196         break;
 197
 198     case AL_FLANGER_DEPTH:
 199         if(!(val >= AL_FLANGER_MIN_DEPTH && val <= AL_FLANGER_MAX_DEPTH))
 200             throw effect_exception{AL_INVALID_VALUE, "Flanger depth out of range: %f", val};
 201         props.Depth = val;
 202         break;
 203
 204     case AL_FLANGER_FEEDBACK:
 205         if(!(val >= AL_FLANGER_MIN_FEEDBACK && val <= AL_FLANGER_MAX_FEEDBACK))
 206             throw effect_exception{AL_INVALID_VALUE, "Flanger feedback out of range: %f", val};
 207         props.Feedback = val;
 208         break;
 209
 210     case AL_FLANGER_DELAY:
 211         if(!(val >= AL_FLANGER_MIN_DELAY && val <= AL_FLANGER_MAX_DELAY))
 212             throw effect_exception{AL_INVALID_VALUE, "Flanger delay out of range: %f", val};
 213         props.Delay = val;
 214         break;
 215
 216     default:
 217         throw effect_exception{AL_INVALID_ENUM, "Invalid flanger float property 0x%04x", param};
 218     }
 219 }
 220 void FlangerEffectHandler::SetParamfv(ChorusProps &props, ALenum param, const float *vals)
 221 { SetParamf(props, param, *vals); }
 222
 223 void FlangerEffectHandler::GetParami(const ChorusProps &props, ALenum param, int *val)
 224 {
 225     switch(param)
 226     {
 227     case AL_FLANGER_WAVEFORM: *val = EnumFromWaveform(props.Waveform); break;
 228     case AL_FLANGER_PHASE: *val = props.Phase; break;
 229
 230     default:
 231         throw effect_exception{AL_INVALID_ENUM, "Invalid flanger integer property 0x%04x", param};
 232     }
 233 }
 234 void FlangerEffectHandler::GetParamiv(const ChorusProps &props, ALenum param, int *vals)
 235 { GetParami(props, param, vals); }
 236 void FlangerEffectHandler::GetParamf(const ChorusProps &props, ALenum param, float *val)
 237 {
 238     switch(param)
 239     {
 240     case AL_FLANGER_RATE: *val = props.Rate; break;
 241     case AL_FLANGER_DEPTH: *val = props.Depth; break;
 242     case AL_FLANGER_FEEDBACK: *val = props.Feedback; break;
 243     case AL_FLANGER_DELAY: *val = props.Delay; break;
 244
 245     default:
 246         throw effect_exception{AL_INVALID_ENUM, "Invalid flanger float property 0x%04x", param};
 247     }
 248 }
 249 void FlangerEffectHandler::GetParamfv(const ChorusProps &props, ALenum param, float *vals)
 250 { GetParamf(props, param, vals); }
 251
 252
 253 #if ALSOFT_EAX
 254 namespace {
 255
 256 struct EaxChorusTraits {
 257     using EaxProps = EAXCHORUSPROPERTIES;
 258     using Committer = EaxChorusCommitter;
 259
 260     static constexpr auto efx_effect() { return AL_EFFECT_CHORUS; }
 261
 262     static constexpr auto eax_none_param_id() { return EAXCHORUS_NONE; }
 263     static constexpr auto eax_allparameters_param_id() { return EAXCHORUS_ALLPARAMETERS; }
 264     static constexpr auto eax_waveform_param_id() { return EAXCHORUS_WAVEFORM; }
 265     static constexpr auto eax_phase_param_id() { return EAXCHORUS_PHASE; }
 266     static constexpr auto eax_rate_param_id() { return EAXCHORUS_RATE; }
 267     static constexpr auto eax_depth_param_id() { return EAXCHORUS_DEPTH; }
 268     static constexpr auto eax_feedback_param_id() { return EAXCHORUS_FEEDBACK; }
 269     static constexpr auto eax_delay_param_id() { return EAXCHORUS_DELAY; }
 270
 271     static constexpr auto eax_min_waveform() { return EAXCHORUS_MINWAVEFORM; }
 272     static constexpr auto eax_min_phase() { return EAXCHORUS_MINPHASE; }
 273     static constexpr auto eax_min_rate() { return EAXCHORUS_MINRATE; }
 274     static constexpr auto eax_min_depth() { return EAXCHORUS_MINDEPTH; }
 275     static constexpr auto eax_min_feedback() { return EAXCHORUS_MINFEEDBACK; }
 276     static constexpr auto eax_min_delay() { return EAXCHORUS_MINDELAY; }
 277
 278     static constexpr auto eax_max_waveform() { return EAXCHORUS_MAXWAVEFORM; }
 279     static constexpr auto eax_max_phase() { return EAXCHORUS_MAXPHASE; }
 280     static constexpr auto eax_max_rate() { return EAXCHORUS_MAXRATE; }
 281     static constexpr auto eax_max_depth() { return EAXCHORUS_MAXDEPTH; }
 282     static constexpr auto eax_max_feedback() { return EAXCHORUS_MAXFEEDBACK; }
 283     static constexpr auto eax_max_delay() { return EAXCHORUS_MAXDELAY; }
 284
 285     static constexpr auto eax_default_waveform() { return EAXCHORUS_DEFAULTWAVEFORM; }
 286     static constexpr auto eax_default_phase() { return EAXCHORUS_DEFAULTPHASE; }
 287     static constexpr auto eax_default_rate() { return EAXCHORUS_DEFAULTRATE; }
 288     static constexpr auto eax_default_depth() { return EAXCHORUS_DEFAULTDEPTH; }
 289     static constexpr auto eax_default_feedback() { return EAXCHORUS_DEFAULTFEEDBACK; }
 290     static constexpr auto eax_default_delay() { return EAXCHORUS_DEFAULTDELAY; }
 291
 292     static constexpr auto efx_min_waveform() { return AL_CHORUS_MIN_WAVEFORM; }
 293     static constexpr auto efx_min_phase() { return AL_CHORUS_MIN_PHASE; }
 294     static constexpr auto efx_min_rate() { return AL_CHORUS_MIN_RATE; }
 295     static constexpr auto efx_min_depth() { return AL_CHORUS_MIN_DEPTH; }
 296     static constexpr auto efx_min_feedback() { return AL_CHORUS_MIN_FEEDBACK; }
 297     static constexpr auto efx_min_delay() { return AL_CHORUS_MIN_DELAY; }
 298
 299     static constexpr auto efx_max_waveform() { return AL_CHORUS_MAX_WAVEFORM; }
 300     static constexpr auto efx_max_phase() { return AL_CHORUS_MAX_PHASE; }
 301     static constexpr auto efx_max_rate() { return AL_CHORUS_MAX_RATE; }
 302     static constexpr auto efx_max_depth() { return AL_CHORUS_MAX_DEPTH; }
 303     static constexpr auto efx_max_feedback() { return AL_CHORUS_MAX_FEEDBACK; }
 304     static constexpr auto efx_max_delay() { return AL_CHORUS_MAX_DELAY; }
 305
 306     static constexpr auto efx_default_waveform() { return AL_CHORUS_DEFAULT_WAVEFORM; }
 307     static constexpr auto efx_default_phase() { return AL_CHORUS_DEFAULT_PHASE; }
 308     static constexpr auto efx_default_rate() { return AL_CHORUS_DEFAULT_RATE; }
 309     static constexpr auto efx_default_depth() { return AL_CHORUS_DEFAULT_DEPTH; }
 310     static constexpr auto efx_default_feedback() { return AL_CHORUS_DEFAULT_FEEDBACK; }
 311     static constexpr auto efx_default_delay() { return AL_CHORUS_DEFAULT_DELAY; }
 312
 313     static ChorusWaveform eax_waveform(unsigned long type)
 314     {
 315         if(type == EAX_CHORUS_SINUSOID) return ChorusWaveform::Sinusoid;
 316         if(type == EAX_CHORUS_TRIANGLE) return ChorusWaveform::Triangle;
 317         return ChorusWaveform::Sinusoid;
 318     }
 319 }; // EaxChorusTraits
 320
 321 struct EaxFlangerTraits {
 322     using EaxProps = EAXFLANGERPROPERTIES;
 323     using Committer = EaxFlangerCommitter;
 324
 325     static constexpr auto efx_effect() { return AL_EFFECT_FLANGER; }
 326
 327     static constexpr auto eax_none_param_id() { return EAXFLANGER_NONE; }
 328     static constexpr auto eax_allparameters_param_id() { return EAXFLANGER_ALLPARAMETERS; }
 329     static constexpr auto eax_waveform_param_id() { return EAXFLANGER_WAVEFORM; }
 330     static constexpr auto eax_phase_param_id() { return EAXFLANGER_PHASE; }
 331     static constexpr auto eax_rate_param_id() { return EAXFLANGER_RATE; }
 332     static constexpr auto eax_depth_param_id() { return EAXFLANGER_DEPTH; }
 333     static constexpr auto eax_feedback_param_id() { return EAXFLANGER_FEEDBACK; }
 334     static constexpr auto eax_delay_param_id() { return EAXFLANGER_DELAY; }
 335
 336     static constexpr auto eax_min_waveform() { return EAXFLANGER_MINWAVEFORM; }
 337     static constexpr auto eax_min_phase() { return EAXFLANGER_MINPHASE; }
 338     static constexpr auto eax_min_rate() { return EAXFLANGER_MINRATE; }
 339     static constexpr auto eax_min_depth() { return EAXFLANGER_MINDEPTH; }
 340     static constexpr auto eax_min_feedback() { return EAXFLANGER_MINFEEDBACK; }
 341     static constexpr auto eax_min_delay() { return EAXFLANGER_MINDELAY; }
 342
 343     static constexpr auto eax_max_waveform() { return EAXFLANGER_MAXWAVEFORM; }
 344     static constexpr auto eax_max_phase() { return EAXFLANGER_MAXPHASE; }
 345     static constexpr auto eax_max_rate() { return EAXFLANGER_MAXRATE; }
 346     static constexpr auto eax_max_depth() { return EAXFLANGER_MAXDEPTH; }
 347     static constexpr auto eax_max_feedback() { return EAXFLANGER_MAXFEEDBACK; }
 348     static constexpr auto eax_max_delay() { return EAXFLANGER_MAXDELAY; }
 349
 350     static constexpr auto eax_default_waveform() { return EAXFLANGER_DEFAULTWAVEFORM; }
 351     static constexpr auto eax_default_phase() { return EAXFLANGER_DEFAULTPHASE; }
 352     static constexpr auto eax_default_rate() { return EAXFLANGER_DEFAULTRATE; }
 353     static constexpr auto eax_default_depth() { return EAXFLANGER_DEFAULTDEPTH; }
 354     static constexpr auto eax_default_feedback() { return EAXFLANGER_DEFAULTFEEDBACK; }
 355     static constexpr auto eax_default_delay() { return EAXFLANGER_DEFAULTDELAY; }
 356
 357     static constexpr auto efx_min_waveform() { return AL_FLANGER_MIN_WAVEFORM; }
 358     static constexpr auto efx_min_phase() { return AL_FLANGER_MIN_PHASE; }
 359     static constexpr auto efx_min_rate() { return AL_FLANGER_MIN_RATE; }
 360     static constexpr auto efx_min_depth() { return AL_FLANGER_MIN_DEPTH; }
 361     static constexpr auto efx_min_feedback() { return AL_FLANGER_MIN_FEEDBACK; }
 362     static constexpr auto efx_min_delay() { return AL_FLANGER_MIN_DELAY; }
 363
 364     static constexpr auto efx_max_waveform() { return AL_FLANGER_MAX_WAVEFORM; }
 365     static constexpr auto efx_max_phase() { return AL_FLANGER_MAX_PHASE; }
 366     static constexpr auto efx_max_rate() { return AL_FLANGER_MAX_RATE; }
 367     static constexpr auto efx_max_depth() { return AL_FLANGER_MAX_DEPTH; }
 368     static constexpr auto efx_max_feedback() { return AL_FLANGER_MAX_FEEDBACK; }
 369     static constexpr auto efx_max_delay() { return AL_FLANGER_MAX_DELAY; }
 370
 371     static constexpr auto efx_default_waveform() { return AL_FLANGER_DEFAULT_WAVEFORM; }
 372     static constexpr auto efx_default_phase() { return AL_FLANGER_DEFAULT_PHASE; }
 373     static constexpr auto efx_default_rate() { return AL_FLANGER_DEFAULT_RATE; }
 374     static constexpr auto efx_default_depth() { return AL_FLANGER_DEFAULT_DEPTH; }
 375     static constexpr auto efx_default_feedback() { return AL_FLANGER_DEFAULT_FEEDBACK; }
 376     static constexpr auto efx_default_delay() { return AL_FLANGER_DEFAULT_DELAY; }
 377
 378     static ChorusWaveform eax_waveform(unsigned long type)
 379     {
 380         if(type == EAX_FLANGER_SINUSOID) return ChorusWaveform::Sinusoid;
 381         if(type == EAX_FLANGER_TRIANGLE) return ChorusWaveform::Triangle;
 382         return ChorusWaveform::Sinusoid;
 383     }
 384 }; // EaxFlangerTraits
 385
 386 template<typename TTraits>
 387 struct ChorusFlangerEffect {
 388     using Traits = TTraits;
 389     using EaxProps = typename Traits::EaxProps;
 390     using Committer = typename Traits::Committer;
 391     using Exception = typename Committer::Exception;
 392
 393     struct WaveformValidator {
 394         void operator()(unsigned long ulWaveform) const
 395         {
 396             eax_validate_range<Exception>(
 397                 "Waveform",
 398                 ulWaveform,
 399                 Traits::eax_min_waveform(),
 400                 Traits::eax_max_waveform());
 401         }
 402     }; // WaveformValidator
 403
 404     struct PhaseValidator {
 405         void operator()(long lPhase) const
 406         {
 407             eax_validate_range<Exception>(
 408                 "Phase",
 409                 lPhase,
 410                 Traits::eax_min_phase(),
 411                 Traits::eax_max_phase());
 412         }
 413     }; // PhaseValidator
 414
 415     struct RateValidator {
 416         void operator()(float flRate) const
 417         {
 418             eax_validate_range<Exception>(
 419                 "Rate",
 420                 flRate,
 421                 Traits::eax_min_rate(),
 422                 Traits::eax_max_rate());
 423         }
 424     }; // RateValidator
 425
 426     struct DepthValidator {
 427         void operator()(float flDepth) const
 428         {
 429             eax_validate_range<Exception>(
 430                 "Depth",
 431                 flDepth,
 432                 Traits::eax_min_depth(),
 433                 Traits::eax_max_depth());
 434         }
 435     }; // DepthValidator
 436
 437     struct FeedbackValidator {
 438         void operator()(float flFeedback) const
 439         {
 440             eax_validate_range<Exception>(
 441                 "Feedback",
 442                 flFeedback,
 443                 Traits::eax_min_feedback(),
 444                 Traits::eax_max_feedback());
 445         }
 446     }; // FeedbackValidator
 447
 448     struct DelayValidator {
 449         void operator()(float flDelay) const
 450         {
 451             eax_validate_range<Exception>(
 452                 "Delay",
 453                 flDelay,
 454                 Traits::eax_min_delay(),
 455                 Traits::eax_max_delay());
 456         }
 457     }; // DelayValidator
 458
 459     struct AllValidator {
 460         void operator()(const EaxProps& all) const
 461         {
 462             WaveformValidator{}(all.ulWaveform);
 463             PhaseValidator{}(all.lPhase);
 464             RateValidator{}(all.flRate);
 465             DepthValidator{}(all.flDepth);
 466             FeedbackValidator{}(all.flFeedback);
 467             DelayValidator{}(all.flDelay);
 468         }
 469     }; // AllValidator
 470
 471 public:
 472     static void SetDefaults(EaxEffectProps &props)
 473     {
 474         auto&& all = props.emplace<EaxProps>();
 475         all.ulWaveform = Traits::eax_default_waveform();
 476         all.lPhase = Traits::eax_default_phase();
 477         all.flRate = Traits::eax_default_rate();
 478         all.flDepth = Traits::eax_default_depth();
 479         all.flFeedback = Traits::eax_default_feedback();
 480         all.flDelay = Traits::eax_default_delay();
 481     }
 482
 483
 484     static void Get(const EaxCall &call, const EaxProps &all)
 485     {
 486         switch(call.get_property_id())
 487         {
 488         case Traits::eax_none_param_id():
 489             break;
 490         case Traits::eax_allparameters_param_id():
 491             call.template set_value<Exception>(all);
 492             break;
 493         case Traits::eax_waveform_param_id():
 494             call.template set_value<Exception>(all.ulWaveform);
 495             break;
 496         case Traits::eax_phase_param_id():
 497             call.template set_value<Exception>(all.lPhase);
 498             break;
 499         case Traits::eax_rate_param_id():
 500             call.template set_value<Exception>(all.flRate);
 501             break;
 502         case Traits::eax_depth_param_id():
 503             call.template set_value<Exception>(all.flDepth);
 504             break;
 505         case Traits::eax_feedback_param_id():
 506             call.template set_value<Exception>(all.flFeedback);
 507             break;
 508         case Traits::eax_delay_param_id():
 509             call.template set_value<Exception>(all.flDelay);
 510             break;
 511         default:
 512             Committer::fail_unknown_property_id();
 513         }
 514     }
 515
 516     static void Set(const EaxCall &call, EaxProps &all)
 517     {
 518         switch(call.get_property_id())
 519         {
 520         case Traits::eax_none_param_id():
 521             break;
 522         case Traits::eax_allparameters_param_id():
 523             Committer::template defer<AllValidator>(call, all);
 524             break;
 525         case Traits::eax_waveform_param_id():
 526             Committer::template defer<WaveformValidator>(call, all.ulWaveform);
 527             break;
 528         case Traits::eax_phase_param_id():
 529             Committer::template defer<PhaseValidator>(call, all.lPhase);
 530             break;
 531         case Traits::eax_rate_param_id():
 532             Committer::template defer<RateValidator>(call, all.flRate);
 533             break;
 534         case Traits::eax_depth_param_id():
 535             Committer::template defer<DepthValidator>(call, all.flDepth);
 536             break;
 537         case Traits::eax_feedback_param_id():
 538             Committer::template defer<FeedbackValidator>(call, all.flFeedback);
 539             break;
 540         case Traits::eax_delay_param_id():
 541             Committer::template defer<DelayValidator>(call, all.flDelay);
 542             break;
 543         default:
 544             Committer::fail_unknown_property_id();
 545         }
 546     }
 547
 548     static bool Commit(const EaxProps &props, EaxEffectProps &props_, ChorusProps &al_props_)
 549     {
 550         if(auto *cur = std::get_if<EaxProps>(&props_); cur && *cur == props)
 551             return false;
 552
 553         props_ = props;
 554
 555         al_props_.Waveform = Traits::eax_waveform(props.ulWaveform);
 556         al_props_.Phase = static_cast<int>(props.lPhase);
 557         al_props_.Rate = props.flRate;
 558         al_props_.Depth = props.flDepth;
 559         al_props_.Feedback = props.flFeedback;
 560         al_props_.Delay = props.flDelay;
 561
 562         return true;
 563     }
 564 }; // EaxChorusFlangerEffect
 565
 566
 567 using ChorusCommitter = EaxCommitter<EaxChorusCommitter>;
 568 using FlangerCommitter = EaxCommitter<EaxFlangerCommitter>;
 569
 570 } // namespace
 571
 572 template<>
 573 struct ChorusCommitter::Exception : public EaxException
 574 {
 575     explicit Exception(const char *message) : EaxException{"EAX_CHORUS_EFFECT", message}
 576     { }
 577 };
 578
 579 template<>
 580 [[noreturn]] void ChorusCommitter::fail(const char *message)
 581 {
 582     throw Exception{message};
 583 }
 584
 585 bool EaxChorusCommitter::commit(const EAXCHORUSPROPERTIES &props)
 586 {
 587     using Committer = ChorusFlangerEffect<EaxChorusTraits>;
 588     return Committer::Commit(props, mEaxProps, mAlProps.emplace<ChorusProps>());
 589 }
 590
 591 void EaxChorusCommitter::SetDefaults(EaxEffectProps &props)
 592 {
 593     using Committer = ChorusFlangerEffect<EaxChorusTraits>;
 594     Committer::SetDefaults(props);
 595 }
 596
 597 void EaxChorusCommitter::Get(const EaxCall &call, const EAXCHORUSPROPERTIES &props)
 598 {
 599     using Committer = ChorusFlangerEffect<EaxChorusTraits>;
 600     Committer::Get(call, props);
 601 }
 602
 603 void EaxChorusCommitter::Set(const EaxCall &call, EAXCHORUSPROPERTIES &props)
 604 {
 605     using Committer = ChorusFlangerEffect<EaxChorusTraits>;
 606     Committer::Set(call, props);
 607 }
 608
 609 template<>
 610 struct FlangerCommitter::Exception : public EaxException
 611 {
 612     explicit Exception(const char *message) : EaxException{"EAX_FLANGER_EFFECT", message}
 613     { }
 614 };
 615
 616 template<>
 617 [[noreturn]] void FlangerCommitter::fail(const char *message)
 618 {
 619     throw Exception{message};
 620 }
 621
 622 bool EaxFlangerCommitter::commit(const EAXFLANGERPROPERTIES &props)
 623 {
 624     using Committer = ChorusFlangerEffect<EaxFlangerTraits>;
 625     return Committer::Commit(props, mEaxProps, mAlProps.emplace<ChorusProps>());
 626 }
 627
 628 void EaxFlangerCommitter::SetDefaults(EaxEffectProps &props)
 629 {
 630     using Committer = ChorusFlangerEffect<EaxFlangerTraits>;
 631     Committer::SetDefaults(props);
 632 }
 633
 634 void EaxFlangerCommitter::Get(const EaxCall &call, const EAXFLANGERPROPERTIES &props)
 635 {
 636     using Committer = ChorusFlangerEffect<EaxFlangerTraits>;
 637     Committer::Get(call, props);
 638 }
 639
 640 void EaxFlangerCommitter::Set(const EaxCall &call, EAXFLANGERPROPERTIES &props)
 641 {
 642     using Committer = ChorusFlangerEffect<EaxFlangerTraits>;
 643     Committer::Set(call, props);
 644 }
 645
 646 #endif // ALSOFT_EAX