Source/OpenTK/Audio/OpenAL/AL/EffectsExtension.cs

#region --- OpenTK.OpenAL License ---
/* EfxFunctions.cs
 * C headers: \OpenAL 1.1 SDK\include\ "efx.h", "efx-creative.h", "Efx-Util.h"
 * Spec: Effects Extension Guide.pdf (bundled with OpenAL SDK)
 * Copyright (c) 2008 Christoph Brandtner and Stefanos Apostolopoulos
 * See license.txt for license details
 * http://www.OpenTK.net */
#endregion

using System;
using System.Diagnostics;
using System.Runtime.InteropServices;


namespace OpenTK.Audio.OpenAL
{
    public partial class EffectsExtension
    {
        #region Helpers

        #region BindEffect

        [CLSCompliant(false)]
        public void BindEffect(uint eid, EfxEffectType type)
        {
            Imported_alEffecti(eid, EfxEffecti.EffectType, (int)type);
        }


        public void BindEffect(int eid, EfxEffectType type)
        {
            Imported_alEffecti((uint)eid, EfxEffecti.EffectType, (int)type);
        }

        #endregion BindEffect

        #region BindFilterToSource

        [CLSCompliant(false)]
        public void BindFilterToSource(uint source, uint filter)
        {
            AL.Source(source, ALSourcei.EfxDirectFilter, (int)filter);
        }


        public void BindFilterToSource(int source, int filter)
        {
            AL.Source((uint)source, ALSourcei.EfxDirectFilter, (int)filter);
        }

        #endregion BindFilterToSource

        #region BindEffectToAuxiliarySlot

        [CLSCompliant(false)]
        public void BindEffectToAuxiliarySlot(uint auxiliaryeffectslot, uint effect)
        {
            AuxiliaryEffectSlot(auxiliaryeffectslot, EfxAuxiliaryi.EffectslotEffect, (int)effect);
        }


        public void BindEffectToAuxiliarySlot(int auxiliaryeffectslot, int effect)
        {
            AuxiliaryEffectSlot((uint)auxiliaryeffectslot, EfxAuxiliaryi.EffectslotEffect, (int)effect);
        }

        #endregion BindEffectToAuxiliarySlot

        #region BindSourceToAuxiliarySlot

        [CLSCompliant(false)]
        public void BindSourceToAuxiliarySlot(uint source, uint slot, int slotnumber, uint filter)
        {
            AL.Source(source, ALSource3i.EfxAuxiliarySendFilter, (int)slot, (int)slotnumber, (int)filter);
        }


        public void BindSourceToAuxiliarySlot(int source, int slot, int slotnumber, int filter)
        {
            AL.Source((uint)source, ALSource3i.EfxAuxiliarySendFilter, (int)slot, (int)slotnumber, (int)filter);
        }

        #endregion BindSourceToAuxiliarySlot

        #endregion Helpers

        #region Effect Object

        #region alGenEffects

        //[CLSCompliant(false)]
        unsafe private delegate void Delegate_alGenEffects(int n, [Out] uint* effects);
        // typedef void (__cdecl *LPALGENEFFECTS)( ALsizei n, ALuint* effects );

        //[CLSCompliant(false)]
        private Delegate_alGenEffects Imported_alGenEffects;

        [CLSCompliant(false)]
        public void GenEffects(int n, out uint effects)
        {
            unsafe
            {
                fixed (uint* ptr = &effects)
                {
                    Imported_alGenEffects(n, ptr);
                    effects = *ptr;
                }
            }
        }

        public void GenEffects(int n, out int effects)
        {
            unsafe
            {
                fixed (int* ptr = &effects)
                {
                    Imported_alGenEffects(n, (uint*)ptr);
                    effects = *ptr;
                }
            }
        }

        public int[] GenEffects(int n)
        {
            if (n <= 0) throw new ArgumentOutOfRangeException("n", "Must be higher than 0.");
            int[] effects = new int[n];
            GenEffects(n, out effects[0]);
            return effects;
        }

        public int GenEffect()
        {
            int temp;
            GenEffects(1, out temp);
            return temp;
        }

        [CLSCompliant(false)]
        public void GenEffect(out uint effect)
        {
            unsafe
            {
                fixed (uint* ptr = &effect)
                {
                    Imported_alGenEffects(1, ptr);
                    effect = *ptr;
                }
            }

        }

        #endregion alGenEffects

        #region alDeleteEffects

        //[CLSCompliant(false)]
        unsafe private delegate void Delegate_alDeleteEffects(int n, [In] uint* effects);
        // typedef void (__cdecl *LPALDELETEEFFECTS)( ALsizei n, ALuint* effects );

        //[CLSCompliant(false)]
        private Delegate_alDeleteEffects Imported_alDeleteEffects;

        [CLSCompliant(false)]
        public void DeleteEffects(int n, ref uint effects)
        {
            unsafe
            {
                fixed (uint* ptr = &effects)
                {
                    Imported_alDeleteEffects(n, ptr);
                }
            }
        }

        public void DeleteEffects(int n, ref int effects)
        {
            unsafe
            {
                fixed (int* ptr = &effects)
                {
                    Imported_alDeleteEffects(n, (uint*)ptr);
                }
            }
        }

        public void DeleteEffects(int[] effects)
        {
            if (effects == null) throw new ArgumentNullException("effects");
            DeleteEffects(effects.Length, ref effects[0]);
        }

        [CLSCompliant(false)]
        public void DeleteEffects(uint[] effects)
        {
            if (effects == null) throw new ArgumentNullException("effects");
            DeleteEffects(effects.Length, ref effects[0]);
        }

        public void DeleteEffect(int effect)
        {
            DeleteEffects(1, ref effect);
        }

        [CLSCompliant(false)]
        public void DeleteEffect(ref uint effect)
        {
            unsafe
            {
                fixed (uint* ptr = &effect)
                {
                    Imported_alDeleteEffects(1, ptr);
                }
            }
        }

        #endregion alDeleteEffects

        #region alIsEffect

        //[CLSCompliant(false)]
        private delegate bool Delegate_alIsEffect(uint eid);
        // typedef ALboolean (__cdecl *LPALISEFFECT)( ALuint eid );

        //[CLSCompliant(false)]
        private Delegate_alIsEffect Imported_alIsEffect;

        [CLSCompliant(false)]
        public bool IsEffect(uint eid)
        {
            return Imported_alIsEffect(eid);
        }


        public bool IsEffect(int eid)
        {
            return Imported_alIsEffect((uint)eid);
        }

        #endregion alIsEffect

        #region alEffecti

        //[CLSCompliant(false)]
        private delegate void Delegate_alEffecti(uint eid, EfxEffecti param, int value);
        // typedef void (__cdecl *LPALEFFECTI)( ALuint eid, ALenum param, ALint value); 

        //[CLSCompliant(false)]
        private Delegate_alEffecti Imported_alEffecti;

        [CLSCompliant(false)]
        public void Effect(uint eid, EfxEffecti param, int value)
        {
            Imported_alEffecti(eid, param, value);
        }


        public void Effect(int eid, EfxEffecti param, int value)
        {
            Imported_alEffecti((uint)eid, param, value);
        }

        #endregion alEffecti

        #region alEffectf

        //[CLSCompliant(false)]
        private delegate void Delegate_alEffectf(uint eid, EfxEffectf param, float value);
        // typedef void (__cdecl *LPALEFFECTF)( ALuint eid, ALenum param, ALfloat value);

        //[CLSCompliant(false)]
        private Delegate_alEffectf Imported_alEffectf;

        [CLSCompliant(false)]
        public void Effect(uint eid, EfxEffectf param, float value)
        {
            Imported_alEffectf(eid, param, value);
        }


        public void Effect(int eid, EfxEffectf param, float value)
        {
            Imported_alEffectf((uint)eid, param, value);
        }

        #endregion alEffectf

        #region alEffectfv

        //[CLSCompliant(false)]
        unsafe private delegate void Delegate_alEffectfv(uint eid, EfxEffect3f param, [In] float* values);
        // typedef void (__cdecl *LPALEFFECTFV)( ALuint eid, ALenum param, ALfloat* values ); 

        //[CLSCompliant(false)]
        private Delegate_alEffectfv Imported_alEffectfv;

        [CLSCompliant(false)]
        public void Effect(uint eid, EfxEffect3f param, ref Vector3 values)
        {
            unsafe
            {
                fixed (float* ptr = &values.X)
                {
                    Imported_alEffectfv(eid, param, ptr);
                }
            }
        }


        public void Effect(int eid, EfxEffect3f param, ref Vector3 values)
        {
            Effect((uint)eid, param, ref values);
        }

        #endregion alEffectfv

        #region alGetEffecti

        //[CLSCompliant(false)]
        unsafe private delegate void Delegate_alGetEffecti(uint eid, EfxEffecti pname, [Out] int* value);
        // typedef void (__cdecl *LPALGETEFFECTI)( ALuint eid, ALenum pname, ALint* value );

        //[CLSCompliant(false)]
        private Delegate_alGetEffecti Imported_alGetEffecti;

        [CLSCompliant(false)]
        public void GetEffect(uint eid, EfxEffecti pname, out int value)
        {
            unsafe
            {
                fixed (int* ptr = &value)
                {
                    Imported_alGetEffecti(eid, pname, ptr);
                }
            }
        }


        public void GetEffect(int eid, EfxEffecti pname, out int value)
        {
            GetEffect((uint)eid, pname, out value);
        }

        #endregion alGetEffecti

        #region alGetEffectf

        //[CLSCompliant(false)]
        unsafe private delegate void Delegate_alGetEffectf(uint eid, EfxEffectf pname, [Out]float* value);
        // typedef void (__cdecl *LPALGETEFFECTF)( ALuint eid, ALenum pname, ALfloat* value );

        //[CLSCompliant(false)]
        private Delegate_alGetEffectf Imported_alGetEffectf;

        [CLSCompliant(false)]
        public void GetEffect(uint eid, EfxEffectf pname, out float value)
        {
            unsafe
            {
                fixed (float* ptr = &value)
                {
                    Imported_alGetEffectf(eid, pname, ptr);
                }
            }
        }


        public void GetEffect(int eid, EfxEffectf pname, out float value)
        {
            GetEffect((uint)eid, pname, out value);
        }

        #endregion alGetEffectf

        #region alGetEffectfv

        //[CLSCompliant(false)]
        unsafe private delegate void Delegate_alGetEffectfv(uint eid, EfxEffect3f param, [Out] float* values);
        // typedef void (__cdecl *LPALGETEFFECTFV)( ALuint eid, ALenum pname, ALfloat* values );

        //[CLSCompliant(false)]
        private Delegate_alGetEffectfv Imported_alGetEffectfv;

        [CLSCompliant(false)]
        public void GetEffect(uint eid, EfxEffect3f param, out Vector3 values)
        {
            unsafe
            {
                fixed (float* ptr = &values.X)
                {
                    Imported_alGetEffectfv(eid, param, ptr);
                    values.X = ptr[0];
                    values.Y = ptr[1];
                    values.Z = ptr[2];
                }
            }
        }


        public void GetEffect(int eid, EfxEffect3f param, out Vector3 values)
        {
            GetEffect((uint)eid, param, out values);
        }

        #endregion alGetEffectfv

        // Not used:
        // typedef void (__cdecl *LPALEFFECTIV)( ALuint eid, ALenum param, ALint* values ); 
        // typedef void (__cdecl *LPALGETEFFECTIV)( ALuint eid, ALenum pname, ALint* values );

        #endregion Effect Object

        #region Filter Object

        #region alGenFilters

        //[CLSCompliant(false)]
        unsafe private delegate void Delegate_alGenFilters(int n, [Out] uint* filters);
        // typedef void (__cdecl *LPALGENFILTERS)( ALsizei n, ALuint* filters ); 

        //[CLSCompliant(false)]
        private Delegate_alGenFilters Imported_alGenFilters;

        [CLSCompliant(false)]
        public void GenFilters(int n, out uint filters)
        {
            unsafe
            {
                fixed (uint* ptr = &filters)
                {
                    Imported_alGenFilters(n, ptr);
                    filters = *ptr;
                }
            }
        }

        public void GenFilters(int n, out int filters)
        {
            unsafe
            {
                fixed (int* ptr = &filters)
                {
                    Imported_alGenFilters(n, (uint*)ptr);
                    filters = *ptr;
                }
            }
        }


        public int[] GenFilters(int n)
        {

            if (n <= 0) throw new ArgumentOutOfRangeException("n", "Must be higher than 0.");
            int[] filters = new int[n];
            GenFilters(filters.Length, out filters[0]);
            return filters;
        }

        public int GenFilter()
        {
            int filter;
            GenFilters(1, out filter);
            return filter;
        }

        [CLSCompliant(false)]
        unsafe public void GenFilter(out uint filter)
        {
            unsafe
            {
                fixed (uint* ptr = &filter)
                {
                    Imported_alGenFilters(1, ptr);
                    filter = *ptr;
                }
            }
        }

        #endregion alGenFilters

        #region alDeleteFilters

        //[CLSCompliant(false)]
        unsafe private delegate void Delegate_alDeleteFilters(int n, [In] uint* filters);
        // typedef void (__cdecl *LPALDELETEFILTERS)( ALsizei n, ALuint* filters );

        //[CLSCompliant(false)]
        private Delegate_alDeleteFilters Imported_alDeleteFilters;

        [CLSCompliant(false)]
        public void DeleteFilters(int n, ref uint filters)
        {
            unsafe
            {
                fixed (uint* ptr = &filters)
                {
                    Imported_alDeleteFilters(n, ptr);
                }
            }
        }

        public void DeleteFilters(int n, ref int filters)
        {
            unsafe
            {
                fixed (int* ptr = &filters)
                {
                    Imported_alDeleteFilters(n, (uint*)ptr);
                }
            }
        }

        [CLSCompliant(false)]
        public void DeleteFilters(uint[] filters)
        {
            if (filters == null) throw new ArgumentNullException("filters");
            DeleteFilters(filters.Length, ref filters[0]);
        }

        public void DeleteFilters(int[] filters)
        {
            if (filters == null) throw new ArgumentNullException("filters");
            DeleteFilters(filters.Length, ref filters[0]);
        }

        public void DeleteFilter(int filter)
        {
            DeleteFilters(1, ref filter);
        }

        [CLSCompliant(false)]
        public void DeleteFilter(ref uint filter)
        {
            unsafe
            {
                fixed (uint* ptr = &filter)
                {
                    Imported_alDeleteFilters(1, ptr);
                }
            }
        }

        #endregion alDeleteFilters

        #region alIsFilter

        //[CLSCompliant(false)]
        private delegate bool Delegate_alIsFilter(uint fid);
        // typedef ALboolean (__cdecl *LPALISFILTER)( ALuint fid );

        //[CLSCompliant(false)]
        private Delegate_alIsFilter Imported_alIsFilter;

        [CLSCompliant(false)]
        public bool IsFilter(uint fid)
        {
            return Imported_alIsFilter(fid);
        }


        public bool IsFilter(int fid)
        {
            return Imported_alIsFilter((uint)fid);
        }

        #endregion alIsFilter

        #region alFilteri

        //[CLSCompliant(false)]
        private delegate void Delegate_alFilteri(uint fid, EfxFilteri param, int value);
        // typedef void (__cdecl *LPALFILTERI)( ALuint fid, ALenum param, ALint value );

        //[CLSCompliant(false)]
        private Delegate_alFilteri Imported_alFilteri;

        [CLSCompliant(false)]
        public void Filter(uint fid, EfxFilteri param, int value)
        {
            Imported_alFilteri(fid, param, value);
        }


        public void Filter(int fid, EfxFilteri param, int value)
        {
            Imported_alFilteri((uint)fid, param, value);
        }

        #endregion alFilteri

        #region alFilterf

        //[CLSCompliant(false)]
        private delegate void Delegate_alFilterf(uint fid, EfxFilterf param, float value);
        // typedef void (__cdecl *LPALFILTERF)( ALuint fid, ALenum param, ALfloat value);

        //[CLSCompliant(false)]
        private Delegate_alFilterf Imported_alFilterf;

        [CLSCompliant(false)]
        public void Filter(uint fid, EfxFilterf param, float value)
        {
            Imported_alFilterf(fid, param, value);
        }


        public void Filter(int fid, EfxFilterf param, float value)
        {
            Imported_alFilterf((uint)fid, param, value);
        }

        #endregion alFilterf

        #region alGetFilteri

        //[CLSCompliant(false)]
        unsafe private delegate void Delegate_alGetFilteri(uint fid, EfxFilteri pname, [Out] int* value);
        // typedef void (__cdecl *LPALGETFILTERI)( ALuint fid, ALenum pname, ALint* value );

        //[CLSCompliant(false)]
        private Delegate_alGetFilteri Imported_alGetFilteri;

        [CLSCompliant(false)]
        public void GetFilter(uint fid, EfxFilteri pname, out int value)
        {
            unsafe
            {
                fixed (int* ptr = &value)
                {
                    Imported_alGetFilteri(fid, pname, ptr);
                }
            }
        }


        public void GetFilter(int fid, EfxFilteri pname, out int value)
        {
            GetFilter((uint)fid, pname, out value);
        }

        #endregion alGetFilteri

        #region alGetFilterf

        //[CLSCompliant(false)]
        unsafe private delegate void Delegate_alGetFilterf(uint fid, EfxFilterf pname, [Out] float* value);
        // typedef void (__cdecl *LPALGETFILTERF)( ALuint fid, ALenum pname, ALfloat* value );

        //[CLSCompliant(false)]
        private Delegate_alGetFilterf Imported_alGetFilterf;

        [CLSCompliant(false)]
        public void GetFilter(uint fid, EfxFilterf pname, out float value)
        {
            unsafe
            {
                fixed (float* ptr = &value)
                {
                    Imported_alGetFilterf(fid, pname, ptr);
                }
            }
        }


        public void GetFilter(int fid, EfxFilterf pname, out float value)
        {
            GetFilter((uint)fid, pname, out value);
        }

        #endregion alGetFilterf

        // Not used:
        // typedef void (__cdecl *LPALFILTERIV)( ALuint fid, ALenum param, ALint* values ); 
        // typedef void (__cdecl *LPALFILTERFV)( ALuint fid, ALenum param, ALfloat* values ); 
        // typedef void (__cdecl *LPALGETFILTERIV)( ALuint fid, ALenum pname, ALint* values );
        // typedef void (__cdecl *LPALGETFILTERFV)( ALuint fid, ALenum pname, ALfloat* values );

        #endregion Filter Object

        #region Auxiliary Effect Slot Object

        #region alGenAuxiliaryEffectSlots

        //[CLSCompliant(false)]
        unsafe private delegate void Delegate_alGenAuxiliaryEffectSlots(int n, [Out] uint* slots);
        // typedef void (__cdecl *LPALGENAUXILIARYEFFECTSLOTS)( ALsizei n, ALuint* slots );

        //[CLSCompliant(false)]
        private Delegate_alGenAuxiliaryEffectSlots Imported_alGenAuxiliaryEffectSlots;

        [CLSCompliant(false)]
        public void GenAuxiliaryEffectSlots(int n, out uint slots)
        {
            unsafe
            {
                fixed (uint* ptr = &slots)
                {
                    Imported_alGenAuxiliaryEffectSlots(n, ptr);
                    slots = *ptr;
                }
            }
        }

        public void GenAuxiliaryEffectSlots(int n, out int slots)
        {
            unsafe
            {
                fixed (int* ptr = &slots)
                {
                    Imported_alGenAuxiliaryEffectSlots(n, (uint*)ptr);
                    slots = *ptr;
                }
            }
        }

        public int[] GenAuxiliaryEffectSlots(int n)
        {
            if (n <= 0) throw new ArgumentOutOfRangeException("n", "Must be higher than 0.");
            int[] slots = new int[n];
            GenAuxiliaryEffectSlots(slots.Length, out slots[0]);
            return slots;
        }

        public int GenAuxiliaryEffectSlot()
        {
            int temp;
            GenAuxiliaryEffectSlots(1, out temp);
            return temp;
        }

        [CLSCompliant(false)]
        public void GenAuxiliaryEffectSlot(out uint slot)
        {
            unsafe
            {
                fixed (uint* ptr = &slot)
                {
                    Imported_alGenAuxiliaryEffectSlots(1, ptr);
                    slot = *ptr;
                }
            }
        }

        #endregion alGenAuxiliaryEffectSlots

        #region DeleteAuxiliaryEffectSlots

        unsafe private delegate void Delegate_alDeleteAuxiliaryEffectSlots(int n, [In] uint* slots);
        // typedef void (__cdecl *LPALDELETEAUXILIARYEFFECTSLOTS)( ALsizei n, ALuint* slots );

        private Delegate_alDeleteAuxiliaryEffectSlots Imported_alDeleteAuxiliaryEffectSlots;

        [CLSCompliant(false)]
        public void DeleteAuxiliaryEffectSlots(int n, ref uint slots)
        {
            unsafe
            {
                fixed (uint* ptr = &slots)
                {
                    Imported_alDeleteAuxiliaryEffectSlots(n, ptr);
                }
            }
        }

        public void DeleteAuxiliaryEffectSlots(int n, ref int slots)
        {
            unsafe
            {
                fixed (int* ptr = &slots)
                {
                    Imported_alDeleteAuxiliaryEffectSlots(n, (uint*)ptr);
                }
            }
        }

        public void DeleteAuxiliaryEffectSlots(int[] slots)
        {
            if (slots == null) throw new ArgumentNullException("slots");
            DeleteAuxiliaryEffectSlots(slots.Length, ref slots[0]);
        }

        [CLSCompliant(false)]
        public void DeleteAuxiliaryEffectSlots(uint[] slots)
        {
            if (slots == null) throw new ArgumentNullException("slots");
            DeleteAuxiliaryEffectSlots(slots.Length, ref slots[0]);
        }

        public void DeleteAuxiliaryEffectSlot(int slot)
        {
            DeleteAuxiliaryEffectSlots(1, ref slot);
        }

        [CLSCompliant(false)]
        public void DeleteAuxiliaryEffectSlot(ref uint slot)
        {
            unsafe
            {
                fixed (uint* ptr = &slot)
                {
                    Imported_alDeleteAuxiliaryEffectSlots(1, ptr);
                }
            }
        }

        #endregion alDeleteAuxiliaryEffectSlots

        #region alIsAuxiliaryEffectSlot

        //[CLSCompliant(false)]
        private delegate bool Delegate_alIsAuxiliaryEffectSlot(uint slot);
        // typedef ALboolean (__cdecl *LPALISAUXILIARYEFFECTSLOT)( ALuint slot );

        //[CLSCompliant(false)]
        private Delegate_alIsAuxiliaryEffectSlot Imported_alIsAuxiliaryEffectSlot;

        [CLSCompliant(false)]
        public bool IsAuxiliaryEffectSlot(uint slot)
        {
            return Imported_alIsAuxiliaryEffectSlot(slot);
        }


        public bool IsAuxiliaryEffectSlot(int slot)
        {
            return Imported_alIsAuxiliaryEffectSlot((uint)slot);
        }

        #endregion alIsAuxiliaryEffectSlot

        #region alAuxiliaryEffectSloti

        //[CLSCompliant(false)]
        private delegate void Delegate_alAuxiliaryEffectSloti(uint asid, EfxAuxiliaryi param, int value);
        // typedef void (__cdecl *LPALAUXILIARYEFFECTSLOTI)( ALuint asid, ALenum param, ALint value ); 

        //[CLSCompliant(false)]
        private Delegate_alAuxiliaryEffectSloti Imported_alAuxiliaryEffectSloti;

        [CLSCompliant(false)]
        public void AuxiliaryEffectSlot(uint asid, EfxAuxiliaryi param, int value)
        {
            Imported_alAuxiliaryEffectSloti(asid, param, value);
        }


        public void AuxiliaryEffectSlot(int asid, EfxAuxiliaryi param, int value)
        {
            Imported_alAuxiliaryEffectSloti((uint)asid, param, value);
        }

        #endregion alAuxiliaryEffectSloti

        #region alAuxiliaryEffectSlotf

        //[CLSCompliant(false)]
        private delegate void Delegate_alAuxiliaryEffectSlotf(uint asid, EfxAuxiliaryf param, float value);
        // typedef void (__cdecl *LPALAUXILIARYEFFECTSLOTF)( ALuint asid, ALenum param, ALfloat value );

        //[CLSCompliant(false)]
        private Delegate_alAuxiliaryEffectSlotf Imported_alAuxiliaryEffectSlotf;

        [CLSCompliant(false)]
        public void AuxiliaryEffectSlot(uint asid, EfxAuxiliaryf param, float value)
        {
            Imported_alAuxiliaryEffectSlotf(asid, param, value);
        }


        public void AuxiliaryEffectSlot(int asid, EfxAuxiliaryf param, float value)
        {
            Imported_alAuxiliaryEffectSlotf((uint)asid, param, value);
        }

        #endregion alAuxiliaryEffectSlotf

        #region alGetAuxiliaryEffectSloti

        //[CLSCompliant(false)]
        unsafe private delegate void Delegate_alGetAuxiliaryEffectSloti(uint asid, EfxAuxiliaryi pname, [Out] int* value);
        // typedef void (__cdecl *LPALGETAUXILIARYEFFECTSLOTI)( ALuint asid, ALenum pname, ALint* value );

        //[CLSCompliant(false)]
        private Delegate_alGetAuxiliaryEffectSloti Imported_alGetAuxiliaryEffectSloti;

        [CLSCompliant(false)]
        public void GetAuxiliaryEffectSlot(uint asid, EfxAuxiliaryi pname, out int value)
        {
            unsafe
            {
                fixed (int* ptr = &value)
                {
                    Imported_alGetAuxiliaryEffectSloti(asid, pname, ptr);
                }
            }
        }


        public void GetAuxiliaryEffectSlot(int asid, EfxAuxiliaryi pname, out int value)
        {
            GetAuxiliaryEffectSlot((uint)asid, pname, out value);
        }

        #endregion alGetAuxiliaryEffectSloti

        #region alGetAuxiliaryEffectSlotf

        //[CLSCompliant(false)]
        unsafe private delegate void Delegate_alGetAuxiliaryEffectSlotf(uint asid, EfxAuxiliaryf pname, [Out] float* value);
        // typedef void (__cdecl *LPALGETAUXILIARYEFFECTSLOTF)( ALuint asid, ALenum pname, ALfloat* value );

        //[CLSCompliant(false)]
        private Delegate_alGetAuxiliaryEffectSlotf Imported_alGetAuxiliaryEffectSlotf;

        [CLSCompliant(false)]
        public void GetAuxiliaryEffectSlot(uint asid, EfxAuxiliaryf pname, out float value)
        {
            unsafe
            {
                fixed (float* ptr = &value)
                {
                    Imported_alGetAuxiliaryEffectSlotf(asid, pname, ptr);
                }
            }
        }


        public void GetAuxiliaryEffectSlot(int asid, EfxAuxiliaryf pname, out float value)
        {
            GetAuxiliaryEffectSlot((uint)asid, pname, out value);
        }

        #endregion alGetAuxiliaryEffectSlotf

        // Not used:
        // typedef void (__cdecl *LPALAUXILIARYEFFECTSLOTIV)( ALuint asid, ALenum param, ALint* values ); 
        // typedef void (__cdecl *LPALAUXILIARYEFFECTSLOTFV)( ALuint asid, ALenum param, ALfloat* values ); 
        // typedef void (__cdecl *LPALGETAUXILIARYEFFECTSLOTIV)( ALuint asid, ALenum pname, ALint* values );
        // typedef void (__cdecl *LPALGETAUXILIARYEFFECTSLOTFV)( ALuint asid, ALenum pname, ALfloat* values );

        #endregion Auxiliary Effect Slot Object

        #region Constructor / Extension Loading

        private bool _valid;

        public bool IsInitialized
        {
            get
            {
                return _valid;
            }
        }

        public EffectsExtension()
        {
            _valid = false;

            if (AudioContext.CurrentContext == null)
                throw new InvalidOperationException("AL.LoadAll() needs a current AudioContext.");

            if (!AudioContext.CurrentContext.SupportsExtension("ALC_EXT_EFX"))
            {
                Debug.Print("EFX Extension (ALC_EXT_EFX) is not supported(AudioContext: {0}).", AudioContext.CurrentContext.ToString());
                return;
            }
            // Console.WriteLine("ALC_EXT_EFX found. Efx can be used.");

            try
            {
                Imported_alGenEffects = (Delegate_alGenEffects)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alGenEffects"), typeof(Delegate_alGenEffects));
                Imported_alDeleteEffects = (Delegate_alDeleteEffects)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alDeleteEffects"), typeof(Delegate_alDeleteEffects));
                Imported_alIsEffect = (Delegate_alIsEffect)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alIsEffect"), typeof(Delegate_alIsEffect));
                Imported_alEffecti = (Delegate_alEffecti)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alEffecti"), typeof(Delegate_alEffecti));
                Imported_alEffectf = (Delegate_alEffectf)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alEffectf"), typeof(Delegate_alEffectf));
                Imported_alEffectfv = (Delegate_alEffectfv)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alEffectfv"), typeof(Delegate_alEffectfv));
                Imported_alGetEffecti = (Delegate_alGetEffecti)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alGetEffecti"), typeof(Delegate_alGetEffecti));
                Imported_alGetEffectf = (Delegate_alGetEffectf)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alGetEffectf"), typeof(Delegate_alGetEffectf));
                Imported_alGetEffectfv = (Delegate_alGetEffectfv)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alGetEffectfv"), typeof(Delegate_alGetEffectfv));
            }
            catch (Exception e)
            {
                Debug.WriteLine("Failed to marshal Effect functions. " + e.ToString());
                return;
            }
            // Console.WriteLine("Effect functions appear to be ok.");

            try
            {
                Imported_alGenFilters = (Delegate_alGenFilters)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alGenFilters"), typeof(Delegate_alGenFilters));
                Imported_alDeleteFilters = (Delegate_alDeleteFilters)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alDeleteFilters"), typeof(Delegate_alDeleteFilters));
                Imported_alIsFilter = (Delegate_alIsFilter)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alIsFilter"), typeof(Delegate_alIsFilter));
                Imported_alFilteri = (Delegate_alFilteri)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alFilteri"), typeof(Delegate_alFilteri));
                Imported_alFilterf = (Delegate_alFilterf)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alFilterf"), typeof(Delegate_alFilterf));
                Imported_alGetFilteri = (Delegate_alGetFilteri)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alGetFilteri"), typeof(Delegate_alGetFilteri));
                Imported_alGetFilterf = (Delegate_alGetFilterf)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alGetFilterf"), typeof(Delegate_alGetFilterf));
            }
            catch (Exception e)
            {
                Debug.WriteLine("Failed to marshal Filter functions. " + e.ToString());
                return;
            }
            // Console.WriteLine("Filter functions appear to be ok.");

            try
            {
                Imported_alGenAuxiliaryEffectSlots = (Delegate_alGenAuxiliaryEffectSlots)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alGenAuxiliaryEffectSlots"), typeof(Delegate_alGenAuxiliaryEffectSlots));
                Imported_alDeleteAuxiliaryEffectSlots = (Delegate_alDeleteAuxiliaryEffectSlots)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alDeleteAuxiliaryEffectSlots"), typeof(Delegate_alDeleteAuxiliaryEffectSlots));
                Imported_alIsAuxiliaryEffectSlot = (Delegate_alIsAuxiliaryEffectSlot)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alIsAuxiliaryEffectSlot"), typeof(Delegate_alIsAuxiliaryEffectSlot));
                Imported_alAuxiliaryEffectSloti = (Delegate_alAuxiliaryEffectSloti)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alAuxiliaryEffectSloti"), typeof(Delegate_alAuxiliaryEffectSloti));
                Imported_alAuxiliaryEffectSlotf = (Delegate_alAuxiliaryEffectSlotf)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alAuxiliaryEffectSlotf"), typeof(Delegate_alAuxiliaryEffectSlotf));
                Imported_alGetAuxiliaryEffectSloti = (Delegate_alGetAuxiliaryEffectSloti)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alGetAuxiliaryEffectSloti"), typeof(Delegate_alGetAuxiliaryEffectSloti));
                Imported_alGetAuxiliaryEffectSlotf = (Delegate_alGetAuxiliaryEffectSlotf)Marshal.GetDelegateForFunctionPointer(AL.GetProcAddress("alGetAuxiliaryEffectSlotf"), typeof(Delegate_alGetAuxiliaryEffectSlotf));
            }
            catch (Exception e)
            {
                Debug.WriteLine("Failed to marshal AuxiliaryEffectSlot functions. " + e.ToString());
                return;
            }
            // Console.WriteLine("Auxiliary Effect Slot functions appear to be ok.");

            // didn't return so far, everything went fine.
            _valid = true;
        }

        #endregion Constructor / Extension Loading
    }
}

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