al/source.h

   1 #ifndef AL_SOURCE_H
   2 #define AL_SOURCE_H
   3
   4 #include <array>
   5 #include <cstddef>
   6 #include <cstdint>
   7 #include <deque>
   8 #include <limits>
   9 #include <string_view>
  10 #include <utility>
  11
  12 #include "AL/al.h"
  13 #include "AL/alc.h"
  14 #include "AL/alext.h"
  15
  16 #include "almalloc.h"
  17 #include "alnumbers.h"
  18 #include "alnumeric.h"
  19 #include "alspan.h"
  20 #include "core/context.h"
  21 #include "core/voice.h"
  22
  23 #ifdef ALSOFT_EAX
  24 #include "eax/api.h"
  25 #include "eax/call.h"
  26 #include "eax/exception.h"
  27 #include "eax/fx_slot_index.h"
  28 #include "eax/utils.h"
  29 #endif // ALSOFT_EAX
  30
  31 struct ALbuffer;
  32 struct ALeffectslot;
  33 enum class Resampler : uint8_t;
  34
  35 enum class SourceStereo : bool {
  36     Normal = AL_NORMAL_SOFT,
  37     Enhanced = AL_SUPER_STEREO_SOFT
  38 };
  39
  40 inline constexpr size_t DefaultSendCount{2};
  41
  42 inline constexpr ALuint InvalidVoiceIndex{std::numeric_limits<ALuint>::max()};
  43
  44 inline bool sBufferSubDataCompat{false};
  45
  46 struct ALbufferQueueItem : public VoiceBufferItem {
  47     ALbuffer *mBuffer{nullptr};
  48
  49     DISABLE_ALLOC
  50 };
  51
  52
  53 #ifdef ALSOFT_EAX
  54 class EaxSourceException : public EaxException {
  55 public:
  56     explicit EaxSourceException(const char* message)
  57         : EaxException{"EAX_SOURCE", message}
  58     {}
  59 };
  60 #endif // ALSOFT_EAX
  61
  62 struct ALsource {
  63     /** Source properties. */
  64     float Pitch{1.0f};
  65     float Gain{1.0f};
  66     float OuterGain{0.0f};
  67     float MinGain{0.0f};
  68     float MaxGain{1.0f};
  69     float InnerAngle{360.0f};
  70     float OuterAngle{360.0f};
  71     float RefDistance{1.0f};
  72     float MaxDistance{std::numeric_limits<float>::max()};
  73     float RolloffFactor{1.0f};
  74 #ifdef ALSOFT_EAX
  75     // For EAXSOURCE_ROLLOFFFACTOR, which is distinct from and added to
  76     // AL_ROLLOFF_FACTOR
  77     float RolloffFactor2{0.0f};
  78 #endif
  79     std::array<float,3> Position{{0.0f, 0.0f, 0.0f}};
  80     std::array<float,3> Velocity{{0.0f, 0.0f, 0.0f}};
  81     std::array<float,3> Direction{{0.0f, 0.0f, 0.0f}};
  82     std::array<float,3> OrientAt{{0.0f, 0.0f, -1.0f}};
  83     std::array<float,3> OrientUp{{0.0f, 1.0f,  0.0f}};
  84     bool HeadRelative{false};
  85     bool Looping{false};
  86     DistanceModel mDistanceModel{DistanceModel::Default};
  87     Resampler mResampler{ResamplerDefault};
  88     DirectMode DirectChannels{DirectMode::Off};
  89     SpatializeMode mSpatialize{SpatializeMode::Auto};
  90     SourceStereo mStereoMode{SourceStereo::Normal};
  91     bool mPanningEnabled{false};
  92
  93     bool DryGainHFAuto{true};
  94     bool WetGainAuto{true};
  95     bool WetGainHFAuto{true};
  96     float OuterGainHF{1.0f};
  97
  98     float AirAbsorptionFactor{0.0f};
  99     float RoomRolloffFactor{0.0f};
 100     float DopplerFactor{1.0f};
 101
 102     /* NOTE: Stereo pan angles are specified in radians, counter-clockwise
 103      * rather than clockwise.
 104      */
 105     std::array<float,2> StereoPan{{al::numbers::pi_v<float>/6.0f, -al::numbers::pi_v<float>/6.0f}};
 106
 107     float Radius{0.0f};
 108     float EnhWidth{0.593f};
 109     float mPan{0.0f};
 110
 111     /** Direct filter and auxiliary send info. */
 112     struct DirectData {
 113         float Gain{};
 114         float GainHF{};
 115         float HFReference{};
 116         float GainLF{};
 117         float LFReference{};
 118     };
 119     DirectData Direct;
 120
 121     struct SendData {
 122         ALeffectslot *Slot{};
 123         float Gain{};
 124         float GainHF{};
 125         float HFReference{};
 126         float GainLF{};
 127         float LFReference{};
 128     };
 129     std::array<SendData,MaxSendCount> Send;
 130
 131     /**
 132      * Last user-specified offset, and the offset type (bytes, samples, or
 133      * seconds).
 134      */
 135     double Offset{0.0};
 136     ALenum OffsetType{AL_NONE};
 137
 138     /** Source type (static, streaming, or undetermined) */
 139     ALenum SourceType{AL_UNDETERMINED};
 140
 141     /** Source state (initial, playing, paused, or stopped) */
 142     ALenum state{AL_INITIAL};
 143
 144     /** Source Buffer Queue head. */
 145     std::deque<ALbufferQueueItem> mQueue;
 146
 147     bool mPropsDirty{true};
 148
 149     /* Index into the context's Voices array. Lazily updated, only checked and
 150      * reset when looking up the voice.
 151      */
 152     ALuint VoiceIdx{InvalidVoiceIndex};
 153
 154     /** Self ID */
 155     ALuint id{0};
 156
 157
 158     ALsource() noexcept;
 159     ~ALsource();
 160
 161     ALsource(const ALsource&) = delete;
 162     ALsource& operator=(const ALsource&) = delete;
 163
 164     static void SetName(ALCcontext *context, ALuint id, std::string_view name);
 165
 166     DISABLE_ALLOC
 167
 168 #ifdef ALSOFT_EAX
 169 public:
 170     void eaxInitialize(ALCcontext *context) noexcept;
 171     void eaxDispatch(const EaxCall& call);
 172     void eaxCommit();
 173     void eaxMarkAsChanged() noexcept { mEaxChanged = true; }
 174
 175     static ALsource* EaxLookupSource(ALCcontext& al_context, ALuint source_id) noexcept;
 176
 177 private:
 178     using Exception = EaxSourceException;
 179
 180     static constexpr auto eax_max_speakers{9u};
 181
 182     using EaxFxSlotIds = std::array<const GUID*,EAX_MAX_FXSLOTS>;
 183
 184     static constexpr const EaxFxSlotIds eax4_fx_slot_ids{
 185         &EAXPROPERTYID_EAX40_FXSlot0,
 186         &EAXPROPERTYID_EAX40_FXSlot1,
 187         &EAXPROPERTYID_EAX40_FXSlot2,
 188         &EAXPROPERTYID_EAX40_FXSlot3,
 189     };
 190
 191     static constexpr const EaxFxSlotIds eax5_fx_slot_ids{
 192         &EAXPROPERTYID_EAX50_FXSlot0,
 193         &EAXPROPERTYID_EAX50_FXSlot1,
 194         &EAXPROPERTYID_EAX50_FXSlot2,
 195         &EAXPROPERTYID_EAX50_FXSlot3,
 196     };
 197
 198     using EaxActiveFxSlots = std::array<bool, EAX_MAX_FXSLOTS>;
 199     using EaxSpeakerLevels = std::array<EAXSPEAKERLEVELPROPERTIES, eax_max_speakers>;
 200     using EaxSends = std::array<EAXSOURCEALLSENDPROPERTIES, EAX_MAX_FXSLOTS>;
 201
 202     using Eax1Props = EAXBUFFER_REVERBPROPERTIES;
 203     struct Eax1State {
 204         Eax1Props i; // Immediate.
 205         Eax1Props d; // Deferred.
 206     };
 207
 208     using Eax2Props = EAX20BUFFERPROPERTIES;
 209     struct Eax2State {
 210         Eax2Props i; // Immediate.
 211         Eax2Props d; // Deferred.
 212     };
 213
 214     using Eax3Props = EAX30SOURCEPROPERTIES;
 215     struct Eax3State {
 216         Eax3Props i; // Immediate.
 217         Eax3Props d; // Deferred.
 218     };
 219
 220     struct Eax4Props {
 221         Eax3Props source;
 222         EaxSends sends;
 223         EAX40ACTIVEFXSLOTS active_fx_slots;
 224     };
 225
 226     struct Eax4State {
 227         Eax4Props i; // Immediate.
 228         Eax4Props d; // Deferred.
 229     };
 230
 231     struct Eax5Props {
 232         EAX50SOURCEPROPERTIES source;
 233         EaxSends sends;
 234         EAX50ACTIVEFXSLOTS active_fx_slots;
 235         EaxSpeakerLevels speaker_levels;
 236     };
 237
 238     struct Eax5State {
 239         Eax5Props i; // Immediate.
 240         Eax5Props d; // Deferred.
 241     };
 242
 243     ALCcontext* mEaxAlContext{};
 244     EaxFxSlotIndex mEaxPrimaryFxSlotId{};
 245     EaxActiveFxSlots mEaxActiveFxSlots{};
 246     int mEaxVersion{};
 247     bool mEaxChanged{};
 248     Eax1State mEax1{};
 249     Eax2State mEax2{};
 250     Eax3State mEax3{};
 251     Eax4State mEax4{};
 252     Eax5State mEax5{};
 253     Eax5Props mEax{};
 254
 255     // ----------------------------------------------------------------------
 256     // Source validators
 257
 258     struct Eax1SourceReverbMixValidator {
 259         void operator()(float reverb_mix) const
 260         {
 261             if (reverb_mix == EAX_REVERBMIX_USEDISTANCE)
 262                 return;
 263
 264             eax_validate_range<Exception>(
 265                 "Reverb Mix",
 266                 reverb_mix,
 267                 EAX_BUFFER_MINREVERBMIX,
 268                 EAX_BUFFER_MAXREVERBMIX);
 269         }
 270     };
 271
 272     struct Eax2SourceDirectValidator {
 273         void operator()(long lDirect) const
 274         {
 275             eax_validate_range<Exception>(
 276                 "Direct",
 277                 lDirect,
 278                 EAXSOURCE_MINDIRECT,
 279                 EAXSOURCE_MAXDIRECT);
 280         }
 281     };
 282
 283     struct Eax2SourceDirectHfValidator {
 284         void operator()(long lDirectHF) const
 285         {
 286             eax_validate_range<Exception>(
 287                 "Direct HF",
 288                 lDirectHF,
 289                 EAXSOURCE_MINDIRECTHF,
 290                 EAXSOURCE_MAXDIRECTHF);
 291         }
 292     };
 293
 294     struct Eax2SourceRoomValidator {
 295         void operator()(long lRoom) const
 296         {
 297             eax_validate_range<Exception>(
 298                 "Room",
 299                 lRoom,
 300                 EAXSOURCE_MINROOM,
 301                 EAXSOURCE_MAXROOM);
 302         }
 303     };
 304
 305     struct Eax2SourceRoomHfValidator {
 306         void operator()(long lRoomHF) const
 307         {
 308             eax_validate_range<Exception>(
 309                 "Room HF",
 310                 lRoomHF,
 311                 EAXSOURCE_MINROOMHF,
 312                 EAXSOURCE_MAXROOMHF);
 313         }
 314     };
 315
 316     struct Eax2SourceRoomRolloffFactorValidator {
 317         void operator()(float flRoomRolloffFactor) const
 318         {
 319             eax_validate_range<Exception>(
 320                 "Room Rolloff Factor",
 321                 flRoomRolloffFactor,
 322                 EAXSOURCE_MINROOMROLLOFFFACTOR,
 323                 EAXSOURCE_MAXROOMROLLOFFFACTOR);
 324         }
 325     };
 326
 327     struct Eax2SourceObstructionValidator {
 328         void operator()(long lObstruction) const
 329         {
 330             eax_validate_range<Exception>(
 331                 "Obstruction",
 332                 lObstruction,
 333                 EAXSOURCE_MINOBSTRUCTION,
 334                 EAXSOURCE_MAXOBSTRUCTION);
 335         }
 336     };
 337
 338     struct Eax2SourceObstructionLfRatioValidator {
 339         void operator()(float flObstructionLFRatio) const
 340         {
 341             eax_validate_range<Exception>(
 342                 "Obstruction LF Ratio",
 343                 flObstructionLFRatio,
 344                 EAXSOURCE_MINOBSTRUCTIONLFRATIO,
 345                 EAXSOURCE_MAXOBSTRUCTIONLFRATIO);
 346         }
 347     };
 348
 349     struct Eax2SourceOcclusionValidator {
 350         void operator()(long lOcclusion) const
 351         {
 352             eax_validate_range<Exception>(
 353                 "Occlusion",
 354                 lOcclusion,
 355                 EAXSOURCE_MINOCCLUSION,
 356                 EAXSOURCE_MAXOCCLUSION);
 357         }
 358     };
 359
 360     struct Eax2SourceOcclusionLfRatioValidator {
 361         void operator()(float flOcclusionLFRatio) const
 362         {
 363             eax_validate_range<Exception>(
 364                 "Occlusion LF Ratio",
 365                 flOcclusionLFRatio,
 366                 EAXSOURCE_MINOCCLUSIONLFRATIO,
 367                 EAXSOURCE_MAXOCCLUSIONLFRATIO);
 368         }
 369     };
 370
 371     struct Eax2SourceOcclusionRoomRatioValidator {
 372         void operator()(float flOcclusionRoomRatio) const
 373         {
 374             eax_validate_range<Exception>(
 375                 "Occlusion Room Ratio",
 376                 flOcclusionRoomRatio,
 377                 EAXSOURCE_MINOCCLUSIONROOMRATIO,
 378                 EAXSOURCE_MAXOCCLUSIONROOMRATIO);
 379         }
 380     };
 381
 382     struct Eax2SourceOutsideVolumeHfValidator {
 383         void operator()(long lOutsideVolumeHF) const
 384         {
 385             eax_validate_range<Exception>(
 386                 "Outside Volume HF",
 387                 lOutsideVolumeHF,
 388                 EAXSOURCE_MINOUTSIDEVOLUMEHF,
 389                 EAXSOURCE_MAXOUTSIDEVOLUMEHF);
 390         }
 391     };
 392
 393     struct Eax2SourceAirAbsorptionFactorValidator {
 394         void operator()(float flAirAbsorptionFactor) const
 395         {
 396             eax_validate_range<Exception>(
 397                 "Air Absorption Factor",
 398                 flAirAbsorptionFactor,
 399                 EAXSOURCE_MINAIRABSORPTIONFACTOR,
 400                 EAXSOURCE_MAXAIRABSORPTIONFACTOR);
 401         }
 402     };
 403
 404     struct Eax2SourceFlagsValidator {
 405         void operator()(unsigned long dwFlags) const
 406         {
 407             eax_validate_range<Exception>(
 408                 "Flags",
 409                 dwFlags,
 410                 0UL,
 411                 ~EAX20SOURCEFLAGS_RESERVED);
 412         }
 413     };
 414
 415     struct Eax3SourceOcclusionDirectRatioValidator {
 416         void operator()(float flOcclusionDirectRatio) const
 417         {
 418             eax_validate_range<Exception>(
 419                 "Occlusion Direct Ratio",
 420                 flOcclusionDirectRatio,
 421                 EAXSOURCE_MINOCCLUSIONDIRECTRATIO,
 422                 EAXSOURCE_MAXOCCLUSIONDIRECTRATIO);
 423         }
 424     };
 425
 426     struct Eax3SourceExclusionValidator {
 427         void operator()(long lExclusion) const
 428         {
 429             eax_validate_range<Exception>(
 430                 "Exclusion",
 431                 lExclusion,
 432                 EAXSOURCE_MINEXCLUSION,
 433                 EAXSOURCE_MAXEXCLUSION);
 434         }
 435     };
 436
 437     struct Eax3SourceExclusionLfRatioValidator {
 438         void operator()(float flExclusionLFRatio) const
 439         {
 440             eax_validate_range<Exception>(
 441                 "Exclusion LF Ratio",
 442                 flExclusionLFRatio,
 443                 EAXSOURCE_MINEXCLUSIONLFRATIO,
 444                 EAXSOURCE_MAXEXCLUSIONLFRATIO);
 445         }
 446     };
 447
 448     struct Eax3SourceDopplerFactorValidator {
 449         void operator()(float flDopplerFactor) const
 450         {
 451             eax_validate_range<Exception>(
 452                 "Doppler Factor",
 453                 flDopplerFactor,
 454                 EAXSOURCE_MINDOPPLERFACTOR,
 455                 EAXSOURCE_MAXDOPPLERFACTOR);
 456         }
 457     };
 458
 459     struct Eax3SourceRolloffFactorValidator {
 460         void operator()(float flRolloffFactor) const
 461         {
 462             eax_validate_range<Exception>(
 463                 "Rolloff Factor",
 464                 flRolloffFactor,
 465                 EAXSOURCE_MINROLLOFFFACTOR,
 466                 EAXSOURCE_MAXROLLOFFFACTOR);
 467         }
 468     };
 469
 470     struct Eax5SourceMacroFXFactorValidator {
 471         void operator()(float flMacroFXFactor) const
 472         {
 473             eax_validate_range<Exception>(
 474                 "Macro FX Factor",
 475                 flMacroFXFactor,
 476                 EAXSOURCE_MINMACROFXFACTOR,
 477                 EAXSOURCE_MAXMACROFXFACTOR);
 478         }
 479     };
 480
 481     struct Eax5SourceFlagsValidator {
 482         void operator()(unsigned long dwFlags) const
 483         {
 484             eax_validate_range<Exception>(
 485                 "Flags",
 486                 dwFlags,
 487                 0UL,
 488                 ~EAX50SOURCEFLAGS_RESERVED);
 489         }
 490     };
 491
 492     struct Eax1SourceAllValidator {
 493         void operator()(const Eax1Props& props) const
 494         {
 495             Eax1SourceReverbMixValidator{}(props.fMix);
 496         }
 497     };
 498
 499     struct Eax2SourceAllValidator {
 500         void operator()(const Eax2Props& props) const
 501         {
 502             Eax2SourceDirectValidator{}(props.lDirect);
 503             Eax2SourceDirectHfValidator{}(props.lDirectHF);
 504             Eax2SourceRoomValidator{}(props.lRoom);
 505             Eax2SourceRoomHfValidator{}(props.lRoomHF);
 506             Eax2SourceRoomRolloffFactorValidator{}(props.flRoomRolloffFactor);
 507             Eax2SourceObstructionValidator{}(props.lObstruction);
 508             Eax2SourceObstructionLfRatioValidator{}(props.flObstructionLFRatio);
 509             Eax2SourceOcclusionValidator{}(props.lOcclusion);
 510             Eax2SourceOcclusionLfRatioValidator{}(props.flOcclusionLFRatio);
 511             Eax2SourceOcclusionRoomRatioValidator{}(props.flOcclusionRoomRatio);
 512             Eax2SourceOutsideVolumeHfValidator{}(props.lOutsideVolumeHF);
 513             Eax2SourceAirAbsorptionFactorValidator{}(props.flAirAbsorptionFactor);
 514             Eax2SourceFlagsValidator{}(props.dwFlags);
 515         }
 516     };
 517
 518     struct Eax3SourceAllValidator {
 519         void operator()(const Eax3Props& props) const
 520         {
 521             Eax2SourceDirectValidator{}(props.lDirect);
 522             Eax2SourceDirectHfValidator{}(props.lDirectHF);
 523             Eax2SourceRoomValidator{}(props.lRoom);
 524             Eax2SourceRoomHfValidator{}(props.lRoomHF);
 525             Eax2SourceObstructionValidator{}(props.lObstruction);
 526             Eax2SourceObstructionLfRatioValidator{}(props.flObstructionLFRatio);
 527             Eax2SourceOcclusionValidator{}(props.lOcclusion);
 528             Eax2SourceOcclusionLfRatioValidator{}(props.flOcclusionLFRatio);
 529             Eax2SourceOcclusionRoomRatioValidator{}(props.flOcclusionRoomRatio);
 530             Eax3SourceOcclusionDirectRatioValidator{}(props.flOcclusionDirectRatio);
 531             Eax3SourceExclusionValidator{}(props.lExclusion);
 532             Eax3SourceExclusionLfRatioValidator{}(props.flExclusionLFRatio);
 533             Eax2SourceOutsideVolumeHfValidator{}(props.lOutsideVolumeHF);
 534             Eax3SourceDopplerFactorValidator{}(props.flDopplerFactor);
 535             Eax3SourceRolloffFactorValidator{}(props.flRolloffFactor);
 536             Eax2SourceRoomRolloffFactorValidator{}(props.flRoomRolloffFactor);
 537             Eax2SourceAirAbsorptionFactorValidator{}(props.flAirAbsorptionFactor);
 538             Eax2SourceFlagsValidator{}(props.ulFlags);
 539         }
 540     };
 541
 542     struct Eax5SourceAllValidator {
 543         void operator()(const EAX50SOURCEPROPERTIES& props) const
 544         {
 545             Eax2SourceDirectValidator{}(props.lDirect);
 546             Eax2SourceDirectHfValidator{}(props.lDirectHF);
 547             Eax2SourceRoomValidator{}(props.lRoom);
 548             Eax2SourceRoomHfValidator{}(props.lRoomHF);
 549             Eax2SourceObstructionValidator{}(props.lObstruction);
 550             Eax2SourceObstructionLfRatioValidator{}(props.flObstructionLFRatio);
 551             Eax2SourceOcclusionValidator{}(props.lOcclusion);
 552             Eax2SourceOcclusionLfRatioValidator{}(props.flOcclusionLFRatio);
 553             Eax2SourceOcclusionRoomRatioValidator{}(props.flOcclusionRoomRatio);
 554             Eax3SourceOcclusionDirectRatioValidator{}(props.flOcclusionDirectRatio);
 555             Eax3SourceExclusionValidator{}(props.lExclusion);
 556             Eax3SourceExclusionLfRatioValidator{}(props.flExclusionLFRatio);
 557             Eax2SourceOutsideVolumeHfValidator{}(props.lOutsideVolumeHF);
 558             Eax3SourceDopplerFactorValidator{}(props.flDopplerFactor);
 559             Eax3SourceRolloffFactorValidator{}(props.flRolloffFactor);
 560             Eax2SourceRoomRolloffFactorValidator{}(props.flRoomRolloffFactor);
 561             Eax2SourceAirAbsorptionFactorValidator{}(props.flAirAbsorptionFactor);
 562             Eax5SourceFlagsValidator{}(props.ulFlags);
 563             Eax5SourceMacroFXFactorValidator{}(props.flMacroFXFactor);
 564         }
 565     };
 566
 567     struct Eax5SourceAll2dValidator {
 568         void operator()(const EAXSOURCE2DPROPERTIES& props) const
 569         {
 570             Eax2SourceDirectValidator{}(props.lDirect);
 571             Eax2SourceDirectHfValidator{}(props.lDirectHF);
 572             Eax2SourceRoomValidator{}(props.lRoom);
 573             Eax2SourceRoomHfValidator{}(props.lRoomHF);
 574             Eax5SourceFlagsValidator{}(props.ulFlags);
 575         }
 576     };
 577
 578     struct Eax4ObstructionValidator {
 579         void operator()(const EAXOBSTRUCTIONPROPERTIES& props) const
 580         {
 581             Eax2SourceObstructionValidator{}(props.lObstruction);
 582             Eax2SourceObstructionLfRatioValidator{}(props.flObstructionLFRatio);
 583         }
 584     };
 585
 586     struct Eax4OcclusionValidator {
 587         void operator()(const EAXOCCLUSIONPROPERTIES& props) const
 588         {
 589             Eax2SourceOcclusionValidator{}(props.lOcclusion);
 590             Eax2SourceOcclusionLfRatioValidator{}(props.flOcclusionLFRatio);
 591             Eax2SourceOcclusionRoomRatioValidator{}(props.flOcclusionRoomRatio);
 592             Eax3SourceOcclusionDirectRatioValidator{}(props.flOcclusionDirectRatio);
 593         }
 594     };
 595
 596     struct Eax4ExclusionValidator {
 597         void operator()(const EAXEXCLUSIONPROPERTIES& props) const
 598         {
 599             Eax3SourceExclusionValidator{}(props.lExclusion);
 600             Eax3SourceExclusionLfRatioValidator{}(props.flExclusionLFRatio);
 601         }
 602     };
 603
 604     // Source validators
 605     // ----------------------------------------------------------------------
 606     // Send validators
 607
 608     struct Eax4SendReceivingFxSlotIdValidator {
 609         void operator()(const GUID& guidReceivingFXSlotID) const
 610         {
 611             if (guidReceivingFXSlotID != EAXPROPERTYID_EAX40_FXSlot0 &&
 612                 guidReceivingFXSlotID != EAXPROPERTYID_EAX40_FXSlot1 &&
 613                 guidReceivingFXSlotID != EAXPROPERTYID_EAX40_FXSlot2 &&
 614                 guidReceivingFXSlotID != EAXPROPERTYID_EAX40_FXSlot3)
 615             {
 616                 eax_fail_unknown_receiving_fx_slot_id();
 617             }
 618         }
 619     };
 620
 621     struct Eax5SendReceivingFxSlotIdValidator {
 622         void operator()(const GUID& guidReceivingFXSlotID) const
 623         {
 624             if (guidReceivingFXSlotID != EAXPROPERTYID_EAX50_FXSlot0 &&
 625                 guidReceivingFXSlotID != EAXPROPERTYID_EAX50_FXSlot1 &&
 626                 guidReceivingFXSlotID != EAXPROPERTYID_EAX50_FXSlot2 &&
 627                 guidReceivingFXSlotID != EAXPROPERTYID_EAX50_FXSlot3)
 628             {
 629                 eax_fail_unknown_receiving_fx_slot_id();
 630             }
 631         }
 632     };
 633
 634     struct Eax4SendSendValidator {
 635         void operator()(long lSend) const
 636         {
 637             eax_validate_range<Exception>(
 638                 "Send",
 639                 lSend,
 640                 EAXSOURCE_MINSEND,
 641                 EAXSOURCE_MAXSEND);
 642         }
 643     };
 644
 645     struct Eax4SendSendHfValidator {
 646         void operator()(long lSendHF) const
 647         {
 648             eax_validate_range<Exception>(
 649                 "Send HF",
 650                 lSendHF,
 651                 EAXSOURCE_MINSENDHF,
 652                 EAXSOURCE_MAXSENDHF);
 653         }
 654     };
 655
 656     template<typename TIdValidator>
 657     struct EaxSendValidator {
 658         void operator()(const EAXSOURCESENDPROPERTIES& props) const
 659         {
 660             TIdValidator{}(props.guidReceivingFXSlotID);
 661             Eax4SendSendValidator{}(props.lSend);
 662             Eax4SendSendHfValidator{}(props.lSendHF);
 663         }
 664     };
 665
 666     struct Eax4SendValidator : EaxSendValidator<Eax4SendReceivingFxSlotIdValidator> {};
 667     struct Eax5SendValidator : EaxSendValidator<Eax5SendReceivingFxSlotIdValidator> {};
 668
 669     template<typename TIdValidator>
 670     struct EaxOcclusionSendValidator {
 671         void operator()(const EAXSOURCEOCCLUSIONSENDPROPERTIES& props) const
 672         {
 673             TIdValidator{}(props.guidReceivingFXSlotID);
 674             Eax2SourceOcclusionValidator{}(props.lOcclusion);
 675             Eax2SourceOcclusionLfRatioValidator{}(props.flOcclusionLFRatio);
 676             Eax2SourceOcclusionRoomRatioValidator{}(props.flOcclusionRoomRatio);
 677             Eax3SourceOcclusionDirectRatioValidator{}(props.flOcclusionDirectRatio);
 678         }
 679     };
 680
 681     struct Eax4OcclusionSendValidator : EaxOcclusionSendValidator<Eax4SendReceivingFxSlotIdValidator> {};
 682     struct Eax5OcclusionSendValidator : EaxOcclusionSendValidator<Eax5SendReceivingFxSlotIdValidator> {};
 683
 684     template<typename TIdValidator>
 685     struct EaxExclusionSendValidator {
 686         void operator()(const EAXSOURCEEXCLUSIONSENDPROPERTIES& props) const
 687         {
 688             TIdValidator{}(props.guidReceivingFXSlotID);
 689             Eax3SourceExclusionValidator{}(props.lExclusion);
 690             Eax3SourceExclusionLfRatioValidator{}(props.flExclusionLFRatio);
 691         }
 692     };
 693
 694     struct Eax4ExclusionSendValidator : EaxExclusionSendValidator<Eax4SendReceivingFxSlotIdValidator> {};
 695     struct Eax5ExclusionSendValidator : EaxExclusionSendValidator<Eax5SendReceivingFxSlotIdValidator> {};
 696
 697     template<typename TIdValidator>
 698     struct EaxAllSendValidator {
 699         void operator()(const EAXSOURCEALLSENDPROPERTIES& props) const
 700         {
 701             TIdValidator{}(props.guidReceivingFXSlotID);
 702             Eax4SendSendValidator{}(props.lSend);
 703             Eax4SendSendHfValidator{}(props.lSendHF);
 704             Eax2SourceOcclusionValidator{}(props.lOcclusion);
 705             Eax2SourceOcclusionLfRatioValidator{}(props.flOcclusionLFRatio);
 706             Eax2SourceOcclusionRoomRatioValidator{}(props.flOcclusionRoomRatio);
 707             Eax3SourceOcclusionDirectRatioValidator{}(props.flOcclusionDirectRatio);
 708             Eax3SourceExclusionValidator{}(props.lExclusion);
 709             Eax3SourceExclusionLfRatioValidator{}(props.flExclusionLFRatio);
 710         }
 711     };
 712
 713     struct Eax4AllSendValidator : EaxAllSendValidator<Eax4SendReceivingFxSlotIdValidator> {};
 714     struct Eax5AllSendValidator : EaxAllSendValidator<Eax5SendReceivingFxSlotIdValidator> {};
 715
 716     // Send validators
 717     // ----------------------------------------------------------------------
 718     // Active FX slot ID validators
 719
 720     struct Eax4ActiveFxSlotIdValidator {
 721         void operator()(const GUID &guid) const
 722         {
 723             if(guid != EAX_NULL_GUID && guid != EAX_PrimaryFXSlotID
 724                 && guid != EAXPROPERTYID_EAX40_FXSlot0 && guid != EAXPROPERTYID_EAX40_FXSlot1
 725                 && guid != EAXPROPERTYID_EAX40_FXSlot2 && guid != EAXPROPERTYID_EAX40_FXSlot3)
 726             {
 727                 eax_fail_unknown_active_fx_slot_id();
 728             }
 729         }
 730     };
 731
 732     struct Eax5ActiveFxSlotIdValidator {
 733         void operator()(const GUID &guid) const
 734         {
 735             if(guid != EAX_NULL_GUID && guid != EAX_PrimaryFXSlotID
 736                 && guid != EAXPROPERTYID_EAX50_FXSlot0 && guid != EAXPROPERTYID_EAX50_FXSlot1
 737                 && guid != EAXPROPERTYID_EAX50_FXSlot2 && guid != EAXPROPERTYID_EAX50_FXSlot3)
 738             {
 739                 eax_fail_unknown_active_fx_slot_id();
 740             }
 741         }
 742     };
 743
 744     // Active FX slot ID validators
 745     // ----------------------------------------------------------------------
 746     // Speaker level validators.
 747
 748     struct Eax5SpeakerIdValidator {
 749         void operator()(long lSpeakerID) const
 750         {
 751             switch (lSpeakerID) {
 752                 case EAXSPEAKER_FRONT_LEFT:
 753                 case EAXSPEAKER_FRONT_CENTER:
 754                 case EAXSPEAKER_FRONT_RIGHT:
 755                 case EAXSPEAKER_SIDE_RIGHT:
 756                 case EAXSPEAKER_REAR_RIGHT:
 757                 case EAXSPEAKER_REAR_CENTER:
 758                 case EAXSPEAKER_REAR_LEFT:
 759                 case EAXSPEAKER_SIDE_LEFT:
 760                 case EAXSPEAKER_LOW_FREQUENCY:
 761                     break;
 762
 763                 default:
 764                     eax_fail("Unknown speaker ID.");
 765             }
 766         }
 767     };
 768
 769     struct Eax5SpeakerLevelValidator {
 770         void operator()(long lLevel) const
 771         {
 772             // TODO Use a range when the feature will be implemented.
 773             if (lLevel != EAXSOURCE_DEFAULTSPEAKERLEVEL)
 774                 eax_fail("Speaker level out of range.");
 775         }
 776     };
 777
 778     struct Eax5SpeakerAllValidator {
 779         void operator()(const EAXSPEAKERLEVELPROPERTIES& all) const
 780         {
 781             Eax5SpeakerIdValidator{}(all.lSpeakerID);
 782             Eax5SpeakerLevelValidator{}(all.lLevel);
 783         }
 784     };
 785
 786     // Speaker level validators.
 787     // ----------------------------------------------------------------------
 788
 789     struct Eax4SendIndexGetter {
 790         EaxFxSlotIndexValue operator()(const GUID &guid) const
 791         {
 792             if(guid == EAXPROPERTYID_EAX40_FXSlot0)
 793                 return 0;
 794             if(guid == EAXPROPERTYID_EAX40_FXSlot1)
 795                 return 1;
 796             if(guid == EAXPROPERTYID_EAX40_FXSlot2)
 797                 return 2;
 798             if(guid == EAXPROPERTYID_EAX40_FXSlot3)
 799                 return 3;
 800             eax_fail_unknown_receiving_fx_slot_id();
 801         }
 802     };
 803
 804     struct Eax5SendIndexGetter {
 805         EaxFxSlotIndexValue operator()(const GUID &guid) const
 806         {
 807             if(guid == EAXPROPERTYID_EAX50_FXSlot0)
 808                 return 0;
 809             if(guid == EAXPROPERTYID_EAX50_FXSlot1)
 810                 return 1;
 811             if(guid == EAXPROPERTYID_EAX50_FXSlot2)
 812                 return 2;
 813             if(guid == EAXPROPERTYID_EAX50_FXSlot3)
 814                 return 3;
 815             eax_fail_unknown_receiving_fx_slot_id();
 816         }
 817     };
 818
 819     [[noreturn]] static void eax_fail(const char* message);
 820     [[noreturn]] static void eax_fail_unknown_property_id();
 821     [[noreturn]] static void eax_fail_unknown_version();
 822     [[noreturn]] static void eax_fail_unknown_active_fx_slot_id();
 823     [[noreturn]] static void eax_fail_unknown_receiving_fx_slot_id();
 824
 825     static void eax_set_sends_defaults(EaxSends& sends, const EaxFxSlotIds& ids) noexcept;
 826     static void eax1_set_defaults(Eax1Props& props) noexcept;
 827     void eax1_set_defaults() noexcept;
 828     static void eax2_set_defaults(Eax2Props& props) noexcept;
 829     void eax2_set_defaults() noexcept;
 830     static void eax3_set_defaults(Eax3Props& props) noexcept;
 831     void eax3_set_defaults() noexcept;
 832     static void eax4_set_sends_defaults(EaxSends& sends) noexcept;
 833     static void eax4_set_active_fx_slots_defaults(EAX40ACTIVEFXSLOTS& slots) noexcept;
 834     void eax4_set_defaults() noexcept;
 835     static void eax5_set_source_defaults(EAX50SOURCEPROPERTIES& props) noexcept;
 836     static void eax5_set_sends_defaults(EaxSends& sends) noexcept;
 837     static void eax5_set_active_fx_slots_defaults(EAX50ACTIVEFXSLOTS& slots) noexcept;
 838     static void eax5_set_speaker_levels_defaults(EaxSpeakerLevels& speaker_levels) noexcept;
 839     static void eax5_set_defaults(Eax5Props& props) noexcept;
 840     void eax5_set_defaults() noexcept;
 841     void eax_set_defaults() noexcept;
 842
 843     static void eax1_translate(const Eax1Props& src, Eax5Props& dst) noexcept;
 844     static void eax2_translate(const Eax2Props& src, Eax5Props& dst) noexcept;
 845     static void eax3_translate(const Eax3Props& src, Eax5Props& dst) noexcept;
 846     static void eax4_translate(const Eax4Props& src, Eax5Props& dst) noexcept;
 847
 848     static float eax_calculate_dst_occlusion_mb(
 849         long src_occlusion_mb,
 850         float path_ratio,
 851         float lf_ratio) noexcept;
 852
 853     [[nodiscard]] auto eax_create_direct_filter_param() const noexcept -> EaxAlLowPassParam;
 854
 855     [[nodiscard]] auto eax_create_room_filter_param(const ALeffectslot& fx_slot,
 856         const EAXSOURCEALLSENDPROPERTIES& send) const noexcept -> EaxAlLowPassParam;
 857
 858     void eax_update_direct_filter();
 859     void eax_update_room_filters();
 860     void eax_commit_filters();
 861
 862     static void eax_copy_send_for_get(
 863         const EAXSOURCEALLSENDPROPERTIES& src,
 864         EAXSOURCESENDPROPERTIES& dst) noexcept
 865     {
 866         dst = reinterpret_cast<const EAXSOURCESENDPROPERTIES&>(src);
 867     }
 868
 869     static void eax_copy_send_for_get(
 870         const EAXSOURCEALLSENDPROPERTIES& src,
 871         EAXSOURCEALLSENDPROPERTIES& dst) noexcept
 872     {
 873         dst = src;
 874     }
 875
 876     static void eax_copy_send_for_get(
 877         const EAXSOURCEALLSENDPROPERTIES& src,
 878         EAXSOURCEOCCLUSIONSENDPROPERTIES& dst) noexcept
 879     {
 880         dst.guidReceivingFXSlotID = src.guidReceivingFXSlotID;
 881         dst.lOcclusion = src.lOcclusion;
 882         dst.flOcclusionLFRatio = src.flOcclusionLFRatio;
 883         dst.flOcclusionRoomRatio = src.flOcclusionRoomRatio;
 884         dst.flOcclusionDirectRatio = src.flOcclusionDirectRatio;
 885     }
 886
 887     static void eax_copy_send_for_get(
 888         const EAXSOURCEALLSENDPROPERTIES& src,
 889         EAXSOURCEEXCLUSIONSENDPROPERTIES& dst) noexcept
 890     {
 891         dst.guidReceivingFXSlotID = src.guidReceivingFXSlotID;
 892         dst.lExclusion = src.lExclusion;
 893         dst.flExclusionLFRatio = src.flExclusionLFRatio;
 894     }
 895
 896     template<typename TDstSend>
 897     void eax_get_sends(const EaxCall& call, const EaxSends& src_sends)
 898     {
 899         const auto dst_sends = call.get_values<TDstSend>(EAX_MAX_FXSLOTS);
 900         const auto count = dst_sends.size();
 901
 902         for (auto i = decltype(count){}; i < count; ++i) {
 903             const auto& src_send = src_sends[i];
 904             auto& dst_send = dst_sends[i];
 905             eax_copy_send_for_get(src_send, dst_send);
 906         }
 907     }
 908
 909     static void eax_get_active_fx_slot_id(const EaxCall& call, const al::span<const GUID> src_ids);
 910     static void eax1_get(const EaxCall& call, const Eax1Props& props);
 911     static void eax2_get(const EaxCall& call, const Eax2Props& props);
 912     static void eax3_get_obstruction(const EaxCall& call, const Eax3Props& props);
 913     static void eax3_get_occlusion(const EaxCall& call, const Eax3Props& props);
 914     static void eax3_get_exclusion(const EaxCall& call, const Eax3Props& props);
 915     static void eax3_get(const EaxCall& call, const Eax3Props& props);
 916     void eax4_get(const EaxCall& call, const Eax4Props& props);
 917     static void eax5_get_all_2d(const EaxCall& call, const EAX50SOURCEPROPERTIES& props);
 918     static void eax5_get_speaker_levels(const EaxCall& call, const EaxSpeakerLevels& props);
 919     void eax5_get(const EaxCall& call, const Eax5Props& props);
 920     void eax_get(const EaxCall& call);
 921
 922     static void eax_copy_send_for_set(
 923         const EAXSOURCESENDPROPERTIES& src,
 924         EAXSOURCEALLSENDPROPERTIES& dst) noexcept
 925     {
 926         dst.lSend = src.lSend;
 927         dst.lSendHF = src.lSendHF;
 928     }
 929
 930     static void eax_copy_send_for_set(
 931         const EAXSOURCEALLSENDPROPERTIES& src,
 932         EAXSOURCEALLSENDPROPERTIES& dst) noexcept
 933     {
 934         dst.lSend = src.lSend;
 935         dst.lSendHF = src.lSendHF;
 936         dst.lOcclusion = src.lOcclusion;
 937         dst.flOcclusionLFRatio = src.flOcclusionLFRatio;
 938         dst.flOcclusionRoomRatio = src.flOcclusionRoomRatio;
 939         dst.flOcclusionDirectRatio = src.flOcclusionDirectRatio;
 940         dst.lExclusion = src.lExclusion;
 941         dst.flExclusionLFRatio = src.flExclusionLFRatio;
 942     }
 943
 944     static void eax_copy_send_for_set(
 945         const EAXSOURCEOCCLUSIONSENDPROPERTIES& src,
 946         EAXSOURCEALLSENDPROPERTIES& dst) noexcept
 947     {
 948         dst.lOcclusion = src.lOcclusion;
 949         dst.flOcclusionLFRatio = src.flOcclusionLFRatio;
 950         dst.flOcclusionRoomRatio = src.flOcclusionRoomRatio;
 951         dst.flOcclusionDirectRatio = src.flOcclusionDirectRatio;
 952     }
 953
 954     static void eax_copy_send_for_set(
 955         const EAXSOURCEEXCLUSIONSENDPROPERTIES& src,
 956         EAXSOURCEALLSENDPROPERTIES& dst) noexcept
 957     {
 958         dst.lExclusion = src.lExclusion;
 959         dst.flExclusionLFRatio = src.flExclusionLFRatio;
 960     }
 961
 962     template<typename TValidator, typename TIndexGetter, typename TSrcSend>
 963     void eax_defer_sends(const EaxCall& call, EaxSends& dst_sends)
 964     {
 965         const auto src_sends = call.get_values<const TSrcSend>(EAX_MAX_FXSLOTS);
 966         std::for_each(src_sends.cbegin(), src_sends.cend(), TValidator{});
 967         const auto count = src_sends.size();
 968         const auto index_getter = TIndexGetter{};
 969
 970         for (auto i = decltype(count){}; i < count; ++i) {
 971             const auto& src_send = src_sends[i];
 972             const auto dst_index = index_getter(src_send.guidReceivingFXSlotID);
 973             auto& dst_send = dst_sends[dst_index];
 974             eax_copy_send_for_set(src_send, dst_send);
 975         }
 976     }
 977
 978     template<typename TValidator, typename TSrcSend>
 979     void eax4_defer_sends(const EaxCall& call, EaxSends& dst_sends)
 980     {
 981         eax_defer_sends<TValidator, Eax4SendIndexGetter, TSrcSend>(call, dst_sends);
 982     }
 983
 984     template<typename TValidator, typename TSrcSend>
 985     void eax5_defer_sends(const EaxCall& call, EaxSends& dst_sends)
 986     {
 987         eax_defer_sends<TValidator, Eax5SendIndexGetter, TSrcSend>(call, dst_sends);
 988     }
 989
 990     template<typename TValidator, size_t TIdCount>
 991     void eax_defer_active_fx_slot_id(const EaxCall& call, const al::span<GUID,TIdCount> dst_ids)
 992     {
 993         const auto src_ids = call.get_values<const GUID>(TIdCount);
 994         std::for_each(src_ids.cbegin(), src_ids.cend(), TValidator{});
 995         std::uninitialized_copy(src_ids.cbegin(), src_ids.cend(), dst_ids.begin());
 996     }
 997
 998     template<size_t TIdCount>
 999     void eax4_defer_active_fx_slot_id(const EaxCall& call, const al::span<GUID,TIdCount> dst_ids)
1000     {
1001         eax_defer_active_fx_slot_id<Eax4ActiveFxSlotIdValidator>(call, dst_ids);
1002     }
1003
1004     template<size_t TIdCount>
1005     void eax5_defer_active_fx_slot_id(const EaxCall& call, const al::span<GUID,TIdCount> dst_ids)
1006     {
1007         eax_defer_active_fx_slot_id<Eax5ActiveFxSlotIdValidator>(call, dst_ids);
1008     }
1009
1010     template<typename TValidator, typename TProperty>
1011     static void eax_defer(const EaxCall& call, TProperty& property)
1012     {
1013         const auto& value = call.get_value<Exception, const TProperty>();
1014         TValidator{}(value);
1015         property = value;
1016     }
1017
1018     // Defers source's sub-properties (obstruction, occlusion, exclusion).
1019     template<typename TValidator, typename TSubproperty, typename TProperty>
1020     void eax_defer_sub(const EaxCall& call, TProperty& property)
1021     {
1022         const auto& src_props = call.get_value<Exception, const TSubproperty>();
1023         TValidator{}(src_props);
1024         auto& dst_props = reinterpret_cast<TSubproperty&>(property);
1025         dst_props = src_props;
1026     }
1027
1028     void eax_set_efx_outer_gain_hf();
1029     void eax_set_efx_doppler_factor();
1030     void eax_set_efx_rolloff_factor();
1031     void eax_set_efx_room_rolloff_factor();
1032     void eax_set_efx_air_absorption_factor();
1033     void eax_set_efx_dry_gain_hf_auto();
1034     void eax_set_efx_wet_gain_auto();
1035     void eax_set_efx_wet_gain_hf_auto();
1036
1037     static void eax1_set(const EaxCall& call, Eax1Props& props);
1038     static void eax2_set(const EaxCall& call, Eax2Props& props);
1039     void eax3_set(const EaxCall& call, Eax3Props& props);
1040     void eax4_set(const EaxCall& call, Eax4Props& props);
1041     static void eax5_defer_all_2d(const EaxCall& call, EAX50SOURCEPROPERTIES& props);
1042     static void eax5_defer_speaker_levels(const EaxCall& call, EaxSpeakerLevels& props);
1043     void eax5_set(const EaxCall& call, Eax5Props& props);
1044     void eax_set(const EaxCall& call);
1045
1046     // `alSource3i(source, AL_AUXILIARY_SEND_FILTER, ...)`
1047     void eax_set_al_source_send(ALeffectslot *slot, size_t sendidx,
1048         const EaxAlLowPassParam &filter);
1049
1050     void eax_commit_active_fx_slots();
1051 #endif // ALSOFT_EAX
1052 };
1053
1054 void UpdateAllSourceProps(ALCcontext *context);
1055
1056 struct SourceSubList {
1057     uint64_t FreeMask{~0_u64};
1058     gsl::owner<std::array<ALsource,64>*> Sources{nullptr};
1059
1060     SourceSubList() noexcept = default;
1061     SourceSubList(const SourceSubList&) = delete;
1062     SourceSubList(SourceSubList&& rhs) noexcept : FreeMask{rhs.FreeMask}, Sources{rhs.Sources}
1063     { rhs.FreeMask = ~0_u64; rhs.Sources = nullptr; }
1064     ~SourceSubList();
1065
1066     SourceSubList& operator=(const SourceSubList&) = delete;
1067     SourceSubList& operator=(SourceSubList&& rhs) noexcept
1068     { std::swap(FreeMask, rhs.FreeMask); std::swap(Sources, rhs.Sources); return *this; }
1069 };
1070
1071 #endif