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openal.pas
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(* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is OpenAL1.0 - Headertranslation to Object Pascal.
*
* The Initial Developer of the Original Code is
* Delphi OpenAL Translation Team.
* Portions created by the Initial Developer are Copyright (C) 2001-2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Tom Nuydens ([email protected])
* Dean Ellis ([email protected])
* Amresh Ramachandran ([email protected])
* Pranav Joshi ([email protected])
* Marten van der Honing ([email protected])
* Benjamin Rosseaux (BeRo)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*)
unit openal;
{$IFDEF FPC}
// Added by bero
{$MODE Delphi}
{$IFDEF CPUI386}
{$DEFINE CPU386}
{$ASMMODE INTEL}
{$ENDIF}
{$IFNDEF WIN32}
{$LINKLIB c}
{$ENDIF}
{$ENDIF}
interface
uses
Classes
, SysUtils
{$IFDEF Win32},Windows{$ENDIF}
;
{ $ DEFINE ALUT} //define ALUT to use alut.dll
const
{$IFDEF Win32}
callibname='OpenAL32.dll';
calutlibname='Alut.dll';
{$ENDIF}
{$IFDEF Linux}
callibname='libopenal.so';
calutlibname='libalut.so';
{$ENDIF}
type
// OpenAL boolean type.
TALboolean = Boolean;
PALboolean = ^TALboolean;
//character
TALchar = char;
PALchar = pchar;
// OpenAL 8bit signed byte.
TALbyte = ShortInt;
PALbyte = ^TALbyte;
// OpenAL 8bit unsigned byte.
TALuByte = Char;
PALuByte = PChar;
// OpenAL 16bit signed short integer type.
TALshort = SmallInt;
PALshort = ^TALshort;
// OpenAL 16bit unsigned short integer type.
TALushort = Word;
PALushort = ^TALushort;
// OpenAL 32bit unsigned integer type.
TALuint = Cardinal;
PALuint = ^TALuint;
// OpenAL 32bit signed integer type.
TALint = Integer;
PALint = ^TALint;
// OpenAL 32bit floating point type.
TALfloat = Single;
PALfloat = ^TALfloat;
// OpenAL 64bit double point type.
TALdouble = Double;
PALdouble = ^TALdouble;
// OpenAL 32bit type.
TALsizei = Cardinal;
PALsizei = ^TALsizei;
// OpenAL void type
TALvoid = Pointer;
PALvoid = ^TALvoid;
PPALvoid = ^PALvoid;
// OpenAL enumerations.
TALenum = Integer;
PALenum = ^TALenum;
// OpenAL bitfields.
TALbitfield = Cardinal;
PALbitfield = ^TALbitfield;
// OpenAL clamped float.
TALclampf = TALfloat;
PALclampf = ^TALclampf;
// Openal clamped double.
TALclampd = TALdouble;
PALclampd = ^TALclampd;
// ALC enumerations.
TALCenum = integer;
PALCenum = ^TALCenum;
// ALC boolean type.
TALCboolean = boolean;
PALCboolean = ^TALCboolean;
// ALC character type
TALCchar = char;
PALCchar = pchar;
// ALC 8bit signed byte.
TALCbyte = ShortInt;
PALCbyte = ^TALCbyte;
// ALC 8bit unsigned byte.
TALCubyte = Char;
PALCubyte = PChar;
// ALC 16bit signed short integer type.
TALCshort = smallint;
PALCshort = ^TALCshort;
// ALC 16bit unsigned short integer type.
TALCushort = Word;
PALCushort = ^TALCushort;
// ALC 32bit unsigned integer type.
TALCuint = Cardinal;
PALCuint = ^TALCuint;
// ALC 32bit signed integer type.
TALCint = integer;
PALCint = ^TALCint;
// ALC 32bit floating point type.
TALCfloat = single;
PALCfloat = ^TALCfloat;
// ALC 64bit double point type.
TALCdouble = double;
PALCdouble = ^TALCdouble;
// ALC 32bit type.
TALCsizei = integer;
PALCsizei = ^TALCsizei;
// ALC void type
TALCvoid = Pointer;
PALCvoid = ^TALCvoid;
// ALC device
TALCdevice = TALCvoid;
PALCdevice = ^TALCdevice;
// ALC context
TALCcontext = TALCvoid;
PALCcontext = ^TALCcontext;
//EAX extension
DSPROPERTY_EAX_LISTENERPROPERTY = LongWORD;
DSPROPERTY_EAX_BUFFERPROPERTY = LongWORD;
// Use this structure for DSPROPERTY_EAXLISTENER_ALLPARAMETERS
// - all levels are hundredths of decibels
// - all times are in seconds
// - the reference for high frequency controls is 5 kHz
//
// NOTE: This structure may change in future EAX versions.
// It is recommended to initialize fields by name:
// myListener.lRoom = -1000;
// myListener.lRoomHF = -100;
// ...
// myListener.dwFlags = myFlags /* see EAXLISTENERFLAGS below */ ;
// instead of:
// myListener = { -1000, -100, ... , 0x00000009 };
// If you want to save and load presets in binary form, you
// should define your own structure to insure future compatibility.
//
TEaxListenerProperties = packed record
lRoom: integer; // room effect level at low frequencies
lRoomHF: integer;
// room effect high-frequency level re. low frequency levelimplementation
flRoomRolloffFactor: double; // like DS3D flRolloffFactor but for room effect
flDecayTime: double; // reverberation decay time at low frequenciesend.
flDecayHFRatio: double; // high-frequency to low-frequency decay time ratio
lReflections: integer; // early reflections level relative to room effect
flReflectionsDelay: double; // initial reflection delay time
lReverb: integer; // late reverberation level relative to room effect
flReverbDelay: double;
// late reverberation delay time relative to initial reflection
dwEnvironment: cardinal; // sets all listener properties
flEnvironmentSize: double; // environment size in meters
flEnvironmentDiffusion: double; // environment diffusion
flAirAbsorptionHF: double; // change in level per meter at 5 kHz
dwFlags: cardinal; // modifies the behavior of properties
end;
PEaxListenerProperties = ^TEaxListenerProperties;
// Use this structure for DSPROPERTY_EAXBUFFER_ALLPARAMETERS
// - all levels are hundredths of decibels
//
// NOTE: This structure may change in future EAX versions.
// It is recommended to initialize fields by name:
// myBuffer.lDirect = 0;
// myBuffer.lDirectHF = -200;
// ...
// myBuffer.dwFlags = myFlags /* see EAXBUFFERFLAGS below */ ;
// instead of:
// myBuffer = { 0, -200, ... , 0x00000003 };
//
TEaxBufferProperties = packed record
lDirect: integer; // direct path level
lDirectHF: integer; // direct path level at high frequencies
lRoom: integer; // room effect level
lRoomHF: integer; // room effect level at high frequencies
flRoomRolloffFactor: double; // like DS3D flRolloffFactor but for room effect
lObstruction: integer;
// main obstruction control (attenuation at high frequencies)
flObstructionLFRatio: double;
// obstruction low-frequency level re. main control
lOcclusion: integer;
// main occlusion control (attenuation at high frequencies)
flOcclusionLFRatio: double; // occlusion low-frequency level re. main control
flOcclusionRoomRatio: double; // occlusion room effect level re. main control
lOutsideVolumeHF: integer; // outside sound cone level at high frequencies
flAirAbsorptionFactor: double;
// multiplies DSPROPERTY_EAXLISTENER_AIRABSORPTIONHF
dwFlags: Cardinal; // modifies the behavior of properties
end;
PEaxBufferProperties = ^TEaxBufferProperties;
//END EAX Extension
const
//bad value
AL_INVALID = -1;
AL_NONE = 0;
//Boolean False.
AL_FALSE = 0;
//Boolean True.
AL_TRUE = 1;
//Indicate the type of AL_SOURCE.
//Sources can be spatialized
//AL_SOURCE_TYPE = $200;
//Indicate source has absolute coordinates.
AL_SOURCE_ABSOLUTE = $201;
//Indicate Source has relative coordinates.
AL_SOURCE_RELATIVE = $202;
//Directional source, inner cone angle, in degrees.
//Range: [0-360]
//Default: 360
AL_CONE_INNER_ANGLE = $1001;
//Directional source, outer cone angle, in degrees.
//Range: [0-360]
//Default: 360
AL_CONE_OUTER_ANGLE = $1002;
//Specify the pitch to be applied, either at source,
//or on mixer results, at listener.
//Range: [0.5-2.0]
//Default: 1.0
AL_PITCH =$1003;
//Specify the current location in three dimensional space.
//OpenAL, like OpenGL, uses a right handed coordinate system,
//where in a frontal default view X (thumb) points right,
//Y points up (index finger), and Z points towards the
//viewer/camera (middle finger).
//To switch from a left handed coordinate system, flip the
//sign on the Z coordinate.
//Listener position is always in the world coordinate system.
AL_POSITION =$1004;
//Specify the current direction.
AL_DIRECTION =$1005;
// Specify the current velocity in three dimensional space.
AL_VELOCITY =$1006;
//Indicate whether source is looping.
//Type: ALboolean?
//Range: [AL_TRUE, AL_FALSE]
//Default: FALSE.
AL_LOOPING =$1007;
//Indicate the buffer to provide sound samples.
//Type: ALuint.
//Range: any valid Buffer id.
AL_BUFFER =$1009;
//Indicate the gain (volume amplification) applied.
//Type: ALfloat.
//Range: ]0.0- ]
//A value of 1.0 means un-attenuated/unchanged.
//Each division by 2 equals an attenuation of -6dB.
//Each multiplicaton with 2 equals an amplification of +6dB.
//A value of 0.0 is meaningless with respect to a logarithmic
//scale; it is interpreted as zero volume - the channel
//is effectively disabled.
AL_GAIN =$100A;
//Indicate minimum source attenuation
//Type: ALfloat
//Range: [0.0 - 1.0]
//Logarthmic
AL_MIN_GAIN =$100D;
//Indicate maximum source attenuation
//Type: ALfloat
//Range: [0.0 - 1.0]
//Logarthmic
AL_MAX_GAIN =$100E;
//Indicate listener orientation.
//at/up
AL_ORIENTATION =$100F;
//Specify the channel mask. (Creative)
//Type: ALuint
//Range: [0 - 255]
AL_CHANNEL_MASK =$3000;
//Source state information.
AL_SOURCE_STATE =$1010;
AL_INITIAL =$1011;
AL_PLAYING =$1012;
AL_PAUSED =$1013;
AL_STOPPED =$1014;
//Buffer Queue params
AL_BUFFERS_QUEUED =$1015;
AL_BUFFERS_PROCESSED =$1016;
//Source buffer position information
AL_SEC_OFFSET = $1024;
AL_SAMPLE_OFFSET = $1025;
AL_BYTE_OFFSET = $1026;
//Source type (Static, Streaming or undetermined)
//Source is Static if a Buffer has been attached using AL_BUFFER
//Source is Streaming if one or more Buffers have been attached using alSourceQueueBuffers
//Source is undetermined when it has the NULL buffer attached
AL_SOURCE_TYPE = $1027;
AL_STATIC = $1028;
AL_STREAMING = $1029;
AL_UNDETERMINED = $1030;
//Sound samples: format specifier.
AL_FORMAT_MONO8 =$1100;
AL_FORMAT_MONO16 =$1101;
AL_FORMAT_STEREO8 =$1102;
AL_FORMAT_STEREO16 =$1103;
AL_FORMAT_VORBIS_EXT =$10003;
//source specific reference distance
//Type: ALfloat
//Range: 0.0 - +inf
//At 0.0, no distance attenuation occurs. Default is
//1.0.
AL_REFERENCE_DISTANCE =$1020;
//source specific rolloff factor
//Type: ALfloat
//Range: 0.0 - +inf
AL_ROLLOFF_FACTOR =$1021;
//Directional source, outer cone gain.
//Default: 0.0
//Range: [0.0 - 1.0]
//Logarithmic
AL_CONE_OUTER_GAIN =$1022;
//Indicate distance above which sources are not
//attenuated using the inverse clamped distance model.
//Default: +inf
//Type: ALfloat
//Range: 0.0 - +inf
AL_MAX_DISTANCE =$1023;
//Sound samples: frequency, in units of Hertz [Hz].
//This is the number of samples per second. Half of the
//sample frequency marks the maximum significant
//frequency component.
AL_FREQUENCY =$2001;
AL_BITS =$2002;
AL_CHANNELS =$2003;
AL_SIZE =$2004;
//AL_DATA =$2005;
//Buffer state.
//Not supported for public use (yet).
AL_UNUSED =$2010;
AL_PENDING =$2011;
AL_PROCESSED =$2012;
//Errors: No Error.
AL_NO_ERROR =AL_FALSE;
//Invalid Name paramater passed to AL call.
AL_INVALID_NAME =$A001;
//Invalid parameter passed to AL call.
AL_ILLEGAL_ENUM =$A002;
AL_INVALID_ENUM =$A002;
//Invalid enum parameter value.
AL_INVALID_VALUE =$A003;
//Illegal call.
AL_ILLEGAL_COMMAND =$A004;
AL_INVALID_OPERATION =$A004;
//No mojo.
AL_OUT_OF_MEMORY =$A005;
// Context strings: Vendor Name.
AL_VENDOR =$B001;
AL_VERSION =$B002;
AL_RENDERER =$B003;
AL_EXTENSIONS =$B004;
// Global tweakage.
// Doppler scale. Default 1.0
AL_DOPPLER_FACTOR =$C000;
// Tweaks speed of propagation.
AL_DOPPLER_VELOCITY =$C001;
//Speed of Sound in units per second
AL_SPEED_OF_SOUND = $C003;
// Distance models
//
// used in conjunction with DistanceModel
//
// implicit: NONE, which disances distance attenuation.
AL_DISTANCE_MODEL =$D000;
AL_INVERSE_DISTANCE =$D001;
AL_INVERSE_DISTANCE_CLAMPED =$D002;
AL_LINEAR_DISTANCE =$D003;
AL_LINEAR_DISTANCE_CLAMPED =$D004;
AL_EXPONENT_DISTANCE =$D005;
AL_EXPONENT_DISTANCE_CLAMPED =$D006;
//bad value
ALC_INVALID =0;
//Boolean False.
ALC_FALSE =0;
//Boolean True.
ALC_TRUE =1;
//followed by <int> Hz
ALC_FREQUENCY =$1007;
//followed by <int> Hz
ALC_REFRESH =$1008;
//followed by AL_TRUE, AL_FALSE
ALC_SYNC =$1009;
//followed by <int> Num of requested Mono (3D) Sources
ALC_MONO_SOURCES =$1010;
//followed by <int> Num of requested Stereo Sources
ALC_STEREO_SOURCES =$1011;
//errors
//No error
ALC_NO_ERROR =ALC_FALSE;
//No device
ALC_INVALID_DEVICE =$A001;
//invalid context ID
ALC_INVALID_CONTEXT =$A002;
//bad enum
ALC_INVALID_ENUM =$A003;
//bad value
ALC_INVALID_VALUE =$A004;
//Out of memory.
ALC_OUT_OF_MEMORY =$A005;
//The Specifier string for default device
ALC_DEFAULT_DEVICE_SPECIFIER =$1004;
ALC_DEVICE_SPECIFIER =$1005;
ALC_EXTENSIONS =$1006;
ALC_MAJOR_VERSION =$1000;
ALC_MINOR_VERSION =$1001;
ALC_ATTRIBUTES_SIZE =$1002;
ALC_ALL_ATTRIBUTES =$1003;
//ALC_ENUMERATE_ALL_EXT enums
ALC_DEFAULT_ALL_DEVICES_SPECIFIER =$1012;
ALC_ALL_DEVICES_SPECIFIER =$1013;
//Capture extension
ALC_CAPTURE_DEVICE_SPECIFIER =$310;
ALC_CAPTURE_DEFAULT_DEVICE_SPECIFIER =$311;
ALC_CAPTURE_SAMPLES =$312;
//EFX Extension
ALC_EXT_EFX_NAME ='ALC_EXT_EFX';
//Context definitions to be used with alcCreateContext.
//These values must be unique and not conflict with other
//al context values.
ALC_EFX_MAJOR_VERSION =$20001;
ALC_EFX_MINOR_VERSION =$20002;
ALC_MAX_AUXILIARY_SENDS =$20003;
//Listener definitions to be used with alListener functions.
//These values must be unique and not conflict with other
//al listener values.
AL_METERS_PER_UNIT =$20004;
//Source definitions to be used with alSource functions.
//These values must be unique and not conflict with other
//al source values.
AL_DIRECT_FILTER =$20005;
AL_AUXILIARY_SEND_FILTER =$20006;
AL_AIR_ABSORPTION_FACTOR =$20007;
AL_ROOM_ROLLOFF_FACTOR =$20008;
AL_CONE_OUTER_GAINHF =$20009;
AL_DIRECT_FILTER_GAINHF_AUTO =$2000A;
AL_AUXILIARY_SEND_FILTER_GAIN_AUTO =$2000B;
AL_AUXILIARY_SEND_FILTER_GAINHF_AUTO =$2000C;
//Effect object definitions to be used with alEffect functions.
//Effect parameter value definitions, ranges, and defaults
//appear farther down in this file.
//Reverb Parameters
AL_REVERB_DENSITY =$0001;
AL_REVERB_DIFFUSION =$0002;
AL_REVERB_GAIN =$0003;
AL_REVERB_GAINHF =$0004;
AL_REVERB_DECAY_TIME =$0005;
AL_REVERB_DECAY_HFRATIO =$0006;
AL_REVERB_REFLECTIONS_GAIN =$0007;
AL_REVERB_REFLECTIONS_DELAY =$0008;
AL_REVERB_LATE_REVERB_GAIN =$0009;
AL_REVERB_LATE_REVERB_DELAY =$000A;
AL_REVERB_AIR_ABSORPTION_GAINHF =$000B;
AL_REVERB_ROOM_ROLLOFF_FACTOR =$000C;
AL_REVERB_DECAY_HFLIMIT =$000D;
//Chorus Parameters
AL_CHORUS_WAVEFORM =$0001;
AL_CHORUS_PHASE =$0002;
AL_CHORUS_RATE =$0003;
AL_CHORUS_DEPTH =$0004;
AL_CHORUS_FEEDBACK =$0005;
AL_CHORUS_DELAY =$0006;
//Distortion Parameters
AL_DISTORTION_EDGE =$0001;
AL_DISTORTION_GAIN =$0002;
AL_DISTORTION_LOWPASS_CUTOFF =$0003;
AL_DISTORTION_EQCENTER =$0004;
AL_DISTORTION_EQBANDWIDTH =$0005;
//Echo Parameters
AL_ECHO_DELAY =$0001;
AL_ECHO_LRDELAY =$0002;
AL_ECHO_DAMPING =$0003;
AL_ECHO_FEEDBACK =$0004;
AL_ECHO_SPREAD =$0005;
//Flanger Parameters
AL_FLANGER_WAVEFORM =$0001;
AL_FLANGER_PHASE =$0002;
AL_FLANGER_RATE =$0003;
AL_FLANGER_DEPTH =$0004;
AL_FLANGER_FEEDBACK =$0005;
AL_FLANGER_DELAY =$0006;
//Frequencyshifter Parameters
AL_FREQUENCY_SHIFTER_FREQUENCY =$0001;
AL_FREQUENCY_SHIFTER_LEFT_DIRECTION =$0002;
AL_FREQUENCY_SHIFTER_RIGHT_DIRECTION =$0003;
//Vocalmorpher Parameters
AL_VOCAL_MORPHER_PHONEMEA =$0001;
AL_VOCAL_MORPHER_PHONEMEA_COARSE_TUNING =$0002;
AL_VOCAL_MORPHER_PHONEMEB =$0003;
AL_VOCAL_MORPHER_PHONEMEB_COARSE_TUNING =$0004;
AL_VOCAL_MORPHER_WAVEFORM =$0005;
AL_VOCAL_MORPHER_RATE =$0006;
//Pitchshifter Parameters
AL_PITCH_SHIFTER_COARSE_TUNE =$0001;
AL_PITCH_SHIFTER_FINE_TUNE =$0002;
//Ringmodulator Parameters
AL_RING_MODULATOR_FREQUENCY =$0001;
AL_RING_MODULATOR_HIGHPASS_CUTOFF =$0002;
AL_RING_MODULATOR_WAVEFORM =$0003;
//Autowah Parameters
AL_AUTOWAH_ATTACK_TIME =$0001;
AL_AUTOWAH_RELEASE_TIME =$0002;
AL_AUTOWAH_RESONANCE =$0003;
AL_AUTOWAH_PEAK_GAIN =$0004;
//Compressor Parameters
AL_COMPRESSOR_ONOFF =$0001;
//Equalizer Parameters
AL_EQUALIZER_LOW_GAIN =$0001;
AL_EQUALIZER_LOW_CUTOFF =$0002;
AL_EQUALIZER_MID1_GAIN =$0003;
AL_EQUALIZER_MID1_CENTER =$0004;
AL_EQUALIZER_MID1_WIDTH =$0005;
AL_EQUALIZER_MID2_GAIN =$0006;
AL_EQUALIZER_MID2_CENTER =$0007;
AL_EQUALIZER_MID2_WIDTH =$0008;
AL_EQUALIZER_HIGH_GAIN =$0009;
AL_EQUALIZER_HIGH_CUTOFF =$000A;
//Effect type
AL_EFFECT_FIRST_PARAMETER =$0000;
AL_EFFECT_LAST_PARAMETER =$8000;
AL_EFFECT_TYPE =$8001;
//Effect type definitions to be used with AL_EFFECT_TYPE.
AL_EFFECT_NULL =$0000; // Can also be used as an Effect Object ID
AL_EFFECT_REVERB =$0001;
AL_EFFECT_CHORUS =$0002;
AL_EFFECT_DISTORTION =$0003;
AL_EFFECT_ECHO =$0004;
AL_EFFECT_FLANGER =$0005;
AL_EFFECT_FREQUENCY_SHIFTER =$0006;
AL_EFFECT_VOCAL_MORPHER =$0007;
AL_EFFECT_PITCH_SHIFTER =$0008;
AL_EFFECT_RING_MODULATOR =$0009;
AL_EFFECT_AUTOWAH =$000A;
AL_EFFECT_COMPRESSOR =$000B;
AL_EFFECT_EQUALIZER =$000C;
//Auxiliary Slot object definitions to be used with alAuxiliaryEffectSlot functions.
AL_EFFECTSLOT_EFFECT =$0001;
AL_EFFECTSLOT_GAIN =$0002;
AL_EFFECTSLOT_AUXILIARY_SEND_AUTO =$0003;
//Value to be used as an Auxiliary Slot ID to disable a source send..
AL_EFFECTSLOT_NULL =$0000;
//Filter object definitions to be used with alFilter functions.
//Lowpass parameters.
AL_LOWPASS_GAIN =$0001;
AL_LOWPASS_GAINHF =$0002;
// Highpass Parameters
AL_HIGHPASS_GAIN =$0001;
AL_HIGHPASS_GAINLF =$0002;
// Bandpass Parameters
AL_BANDPASS_GAIN =$0001;
AL_BANDPASS_GAINLF =$0002;
AL_BANDPASS_GAINHF =$0003;
// Filter type
AL_FILTER_FIRST_PARAMETER =$0000;
AL_FILTER_LAST_PARAMETER =$8000;
AL_FILTER_TYPE =$8001;
// Filter type definitions to be used with AL_FILTER_TYPE.
AL_FILTER_NULL =$0000; // Can also be used as a Filter Object ID
AL_FILTER_LOWPASS =$0001;
AL_FILTER_HIGHPASS =$0002;
AL_FILTER_BANDPASS =$0003;
//Filter ranges and defaults.
//Lowpass filter
LOWPASS_MIN_GAIN =0.0;
LOWPASS_MAX_GAIN =1.0;
LOWPASS_DEFAULT_GAIN =1.0;
LOWPASS_MIN_GAINHF =0.0;
LOWPASS_MAX_GAINHF =1.0;
LOWPASS_DEFAULT_GAINHF =1.0;
//Highpass filter
HIGHPASS_MIN_GAIN =0.0;
HIGHPASS_MAX_GAIN =1.0;
HIGHPASS_DEFAULT_GAIN =1.0;
HIGHPASS_MIN_GAINLF =0.0;
HIGHPASS_MAX_GAINLF =1.0;
HIGHPASS_DEFAULT_GAINLF =1.0;
//Bandpass filter
BANDPASS_MIN_GAIN =0.0;
BANDPASS_MAX_GAIN =1.0;
BANDPASS_DEFAULT_GAIN =1.0;
BANDPASS_MIN_GAINHF =0.0;
BANDPASS_MAX_GAINHF =1.0;
BANDPASS_DEFAULT_GAINHF =1.0;
BANDPASS_MIN_GAINLF =0.0;
BANDPASS_MAX_GAINLF =1.0;
BANDPASS_DEFAULT_GAINLF =1.0;
//Effect parameter structures, value definitions, ranges and defaults.
//AL reverb effect parameter ranges and defaults
AL_REVERB_MIN_DENSITY =0.0;
AL_REVERB_MAX_DENSITY =1.0;
AL_REVERB_DEFAULT_DENSITY =1.0;
AL_REVERB_MIN_DIFFUSION =0.0;
AL_REVERB_MAX_DIFFUSION =1.0;
AL_REVERB_DEFAULT_DIFFUSION =1.0;
AL_REVERB_MIN_GAIN =0.0;
AL_REVERB_MAX_GAIN =1.0;
AL_REVERB_DEFAULT_GAIN =0.32;
AL_REVERB_MIN_GAINHF =0.0;
AL_REVERB_MAX_GAINHF =1.0;
AL_REVERB_DEFAULT_GAINHF =0.89;
AL_REVERB_MIN_DECAY_TIME =0.1;
AL_REVERB_MAX_DECAY_TIME =20.0;
AL_REVERB_DEFAULT_DECAY_TIME =1.49;
AL_REVERB_MIN_DECAY_HFRATIO =0.1;
AL_REVERB_MAX_DECAY_HFRATIO =2.0;
AL_REVERB_DEFAULT_DECAY_HFRATIO =0.83;
AL_REVERB_MIN_REFLECTIONS_GAIN =0.0;
AL_REVERB_MAX_REFLECTIONS_GAIN =3.16;
AL_REVERB_DEFAULT_REFLECTIONS_GAIN =0.05;
AL_REVERB_MIN_REFLECTIONS_DELAY =0.0;
AL_REVERB_MAX_REFLECTIONS_DELAY =0.3;
AL_REVERB_DEFAULT_REFLECTIONS_DELAY =0.007;
AL_REVERB_MIN_LATE_REVERB_GAIN =0.0;
AL_REVERB_MAX_LATE_REVERB_GAIN =10.0;
AL_REVERB_DEFAULT_LATE_REVERB_GAIN =1.26;
AL_REVERB_MIN_LATE_REVERB_DELAY =0.0;
AL_REVERB_MAX_LATE_REVERB_DELAY =0.1;
AL_REVERB_DEFAULT_LATE_REVERB_DELAY =0.011;
AL_REVERB_MIN_AIR_ABSORPTION_GAINHF =0.892;
AL_REVERB_MAX_AIR_ABSORPTION_GAINHF =1.0;
AL_REVERB_DEFAULT_AIR_ABSORPTION_GAINHF =0.994;
AL_REVERB_MIN_ROOM_ROLLOFF_FACTOR =0.0;
AL_REVERB_MAX_ROOM_ROLLOFF_FACTOR =10.0;
AL_REVERB_DEFAULT_ROOM_ROLLOFF_FACTOR =0.0;
AL_REVERB_MIN_DECAY_HFLIMIT =AL_FALSE;
AL_REVERB_MAX_DECAY_HFLIMIT =AL_TRUE;
AL_REVERB_DEFAULT_DECAY_HFLIMIT =AL_TRUE;
//AL chorus effect parameter ranges and defaults
AL_CHORUS_MIN_WAVEFORM =0;
AL_CHORUS_MAX_WAVEFORM =1;
AL_CHORUS_DEFAULT_WAVEFORM =1;
AL_CHORUS_WAVEFORM_SINUSOID =0;
AL_CHORUS_WAVEFORM_TRIANGLE =1;
AL_CHORUS_MIN_PHASE =-180;
AL_CHORUS_MAX_PHASE =180;
AL_CHORUS_DEFAULT_PHASE =90;
AL_CHORUS_MIN_RATE =0.0;
AL_CHORUS_MAX_RATE =10.0;
AL_CHORUS_DEFAULT_RATE =1.1;
AL_CHORUS_MIN_DEPTH =0.0;
AL_CHORUS_MAX_DEPTH =1.0;
AL_CHORUS_DEFAULT_DEPTH =0.1;
AL_CHORUS_MIN_FEEDBACK =-1.0;
AL_CHORUS_MAX_FEEDBACK =1.0;
AL_CHORUS_DEFAULT_FEEDBACK =0.25;
AL_CHORUS_MIN_DELAY =0.0;
AL_CHORUS_MAX_DELAY =0.016;
AL_CHORUS_DEFAULT_DELAY =0.016;
//AL distortion effect parameter ranges and defaults
AL_DISTORTION_MIN_EDGE =0.0;
AL_DISTORTION_MAX_EDGE =1.0;
AL_DISTORTION_DEFAULT_EDGE =0.2;
AL_DISTORTION_MIN_GAIN =0.01;
AL_DISTORTION_MAX_GAIN =1.0;
AL_DISTORTION_DEFAULT_GAIN =0.05;
AL_DISTORTION_MIN_LOWPASS_CUTOFF =80.0;
AL_DISTORTION_MAX_LOWPASS_CUTOFF =24000.0;
AL_DISTORTION_DEFAULT_LOWPASS_CUTOFF =8000.0;
AL_DISTORTION_MIN_EQCENTER =80.0;
AL_DISTORTION_MAX_EQCENTER =24000.0;
AL_DISTORTION_DEFAULT_EQCENTER =3600.0;
AL_DISTORTION_MIN_EQBANDWIDTH =80.0;
AL_DISTORTION_MAX_EQBANDWIDTH =24000.0;
AL_DISTORTION_DEFAULT_EQBANDWIDTH =3600.0;
//AL echo effect parameter ranges and defaults
AL_ECHO_MIN_DELAY =0.0;
AL_ECHO_MAX_DELAY =0.207;
AL_ECHO_DEFAULT_DELAY =0.1;
AL_ECHO_MIN_LRDELAY =0.0;
AL_ECHO_MAX_LRDELAY =0.404;
AL_ECHO_DEFAULT_LRDELAY =0.1;
AL_ECHO_MIN_DAMPING =0.0;
AL_ECHO_MAX_DAMPING =0.99;
AL_ECHO_DEFAULT_DAMPING =0.5;
AL_ECHO_MIN_FEEDBACK =0.0;
AL_ECHO_MAX_FEEDBACK =1.0;
AL_ECHO_DEFAULT_FEEDBACK =0.5;
AL_ECHO_MIN_SPREAD =-1.0;
AL_ECHO_MAX_SPREAD =1.0;
AL_ECHO_DEFAULT_SPREAD =-1.0;
//AL flanger effect parameter ranges and defaults
AL_FLANGER_MIN_WAVEFORM =0;
AL_FLANGER_MAX_WAVEFORM =1;
AL_FLANGER_DEFAULT_WAVEFORM =1;
AL_FLANGER_WAVEFORM_SINUSOID =0;
AL_FLANGER_WAVEFORM_TRIANGLE =1;
AL_FLANGER_MIN_PHASE =-180;
AL_FLANGER_MAX_PHASE =180;
AL_FLANGER_DEFAULT_PHASE =0;
AL_FLANGER_MIN_RATE =0.0;
AL_FLANGER_MAX_RATE =10.0;
AL_FLANGER_DEFAULT_RATE =0.27;
AL_FLANGER_MIN_DEPTH =0.0;
AL_FLANGER_MAX_DEPTH =1.0;
AL_FLANGER_DEFAULT_DEPTH =1.0;
AL_FLANGER_MIN_FEEDBACK =-1.0;
AL_FLANGER_MAX_FEEDBACK =1.0;
AL_FLANGER_DEFAULT_FEEDBACK =-0.5;
AL_FLANGER_MIN_DELAY =0.0;
AL_FLANGER_MAX_DELAY =0.004;
AL_FLANGER_DEFAULT_DELAY =0.002;
//AL frequency shifter effect parameter ranges and defaults
AL_FREQUENCY_SHIFTER_MIN_FREQUENCY =0.0;
AL_FREQUENCY_SHIFTER_MAX_FREQUENCY =24000.0;
AL_FREQUENCY_SHIFTER_DEFAULT_FREQUENCY =0.0;
AL_FREQUENCY_SHIFTER_MIN_LEFT_DIRECTION =0;
AL_FREQUENCY_SHIFTER_MAX_LEFT_DIRECTION =2;
AL_FREQUENCY_SHIFTER_DEFAULT_LEFT_DIRECTION =0;
AL_FREQUENCY_SHIFTER_MIN_RIGHT_DIRECTION =0;
AL_FREQUENCY_SHIFTER_MAX_RIGHT_DIRECTION =2;
AL_FREQUENCY_SHIFTER_DEFAULT_RIGHT_DIRECTION =0;
AL_FREQUENCY_SHIFTER_DIRECTION_DOWN =0;
AL_FREQUENCY_SHIFTER_DIRECTION_UP =1;
AL_FREQUENCY_SHIFTER_DIRECTION_OFF =2;
//AL vocal morpher effect parameter ranges and defaults
AL_VOCAL_MORPHER_MIN_PHONEMEA =0;
AL_VOCAL_MORPHER_MAX_PHONEMEA =29;
AL_VOCAL_MORPHER_DEFAULT_PHONEMEA =0;
AL_VOCAL_MORPHER_MIN_PHONEMEA_COARSE_TUNING =-24;
AL_VOCAL_MORPHER_MAX_PHONEMEA_COARSE_TUNING =24;
AL_VOCAL_MORPHER_DEFAULT_PHONEMEA_COARSE_TUNING =0;
AL_VOCAL_MORPHER_MIN_PHONEMEB =0;
AL_VOCAL_MORPHER_MAX_PHONEMEB =29;
AL_VOCAL_MORPHER_DEFAULT_PHONEMEB =10;
AL_VOCAL_MORPHER_PHONEME_A =0;
AL_VOCAL_MORPHER_PHONEME_E =1;
AL_VOCAL_MORPHER_PHONEME_I =2;
AL_VOCAL_MORPHER_PHONEME_O =3;
AL_VOCAL_MORPHER_PHONEME_U =4;
AL_VOCAL_MORPHER_PHONEME_AA =5;
AL_VOCAL_MORPHER_PHONEME_AE =6;
AL_VOCAL_MORPHER_PHONEME_AH =7;
AL_VOCAL_MORPHER_PHONEME_AO =8;
AL_VOCAL_MORPHER_PHONEME_EH =9;
AL_VOCAL_MORPHER_PHONEME_ER =10;
AL_VOCAL_MORPHER_PHONEME_IH =11;
AL_VOCAL_MORPHER_PHONEME_IY =12;
AL_VOCAL_MORPHER_PHONEME_UH =13;
AL_VOCAL_MORPHER_PHONEME_UW =14;
AL_VOCAL_MORPHER_PHONEME_B =15;
AL_VOCAL_MORPHER_PHONEME_D =16;
AL_VOCAL_MORPHER_PHONEME_F =17;
AL_VOCAL_MORPHER_PHONEME_G =18;
AL_VOCAL_MORPHER_PHONEME_J =19;
AL_VOCAL_MORPHER_PHONEME_K =20;
AL_VOCAL_MORPHER_PHONEME_L =21;
AL_VOCAL_MORPHER_PHONEME_M =22;
AL_VOCAL_MORPHER_PHONEME_N =23;
AL_VOCAL_MORPHER_PHONEME_P =24;
AL_VOCAL_MORPHER_PHONEME_R =25;
AL_VOCAL_MORPHER_PHONEME_S =26;
AL_VOCAL_MORPHER_PHONEME_T =27;
AL_VOCAL_MORPHER_PHONEME_V =28;
AL_VOCAL_MORPHER_PHONEME_Z =29;
AL_VOCAL_MORPHER_MIN_PHONEMEB_COARSE_TUNING =-24;
AL_VOCAL_MORPHER_MAX_PHONEMEB_COARSE_TUNING =24;
AL_VOCAL_MORPHER_DEFAULT_PHONEMEB_COARSE_TUNING =0;
AL_VOCAL_MORPHER_MIN_WAVEFORM =0;
AL_VOCAL_MORPHER_MAX_WAVEFORM =2;
AL_VOCAL_MORPHER_DEFAULT_WAVEFORM =0;
AL_VOCAL_MORPHER_WAVEFORM_SINUSOID =0;
AL_VOCAL_MORPHER_WAVEFORM_TRIANGLE =1;
AL_VOCAL_MORPHER_WAVEFORM_SAWTOOTH =2;
AL_VOCAL_MORPHER_MIN_RATE =0.0;
AL_VOCAL_MORPHER_MAX_RATE =10.0;
AL_VOCAL_MORPHER_DEFAULT_RATE =1.41;
//AL pitch shifter effect parameter ranges and defaults
AL_PITCH_SHIFTER_MIN_COARSE_TUNE =-12;
AL_PITCH_SHIFTER_MAX_COARSE_TUNE =12;
AL_PITCH_SHIFTER_DEFAULT_COARSE_TUNE =12;
AL_PITCH_SHIFTER_MIN_FINE_TUNE =-50;
AL_PITCH_SHIFTER_MAX_FINE_TUNE =50;
AL_PITCH_SHIFTER_DEFAULT_FINE_TUNE =0;
//AL ring modulator effect parameter ranges and defaults
AL_RING_MODULATOR_MIN_FREQUENCY =0.0;
AL_RING_MODULATOR_MAX_FREQUENCY =8000.0;
AL_RING_MODULATOR_DEFAULT_FREQUENCY =440.0;
AL_RING_MODULATOR_MIN_HIGHPASS_CUTOFF =0.0;
AL_RING_MODULATOR_MAX_HIGHPASS_CUTOFF =24000.0;
AL_RING_MODULATOR_DEFAULT_HIGHPASS_CUTOFF =800.0;
AL_RING_MODULATOR_MIN_WAVEFORM =0;
AL_RING_MODULATOR_MAX_WAVEFORM =2;
AL_RING_MODULATOR_DEFAULT_WAVEFORM =0;
AL_RING_MODULATOR_SINUSOID =0;
AL_RING_MODULATOR_SAWTOOTH =1;
AL_RING_MODULATOR_SQUARE =2;
//AL autowah effect parameter ranges and defaults
AL_AUTOWAH_MIN_ATTACK_TIME =0.0001;
AL_AUTOWAH_MAX_ATTACK_TIME =1.0;
AL_AUTOWAH_DEFAULT_ATTACK_TIME =0.06;