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OAL_EffectSlot.cpp
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OAL_EffectSlot.cpp
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/*
* Copyright 2007-2010 (C) - Frictional Games
*
* This file is part of OALWrapper
*
* For conditions of distribution and use, see copyright notice in LICENSE
*/
#include "OALWrapper/OAL_EffectSlot.h"
#include "OALWrapper/OAL_Effect.h"
#include "OALWrapper/OAL_Helper.h"
#include "OALWrapper/OAL_EFXManager.h"
cOAL_EffectSlot::cOAL_EffectSlot( cOAL_EFXManager* apEFXManager, int alId) : iOAL_LowLevelObject("EffectSlot"),
mlId(alId),
mpEffect(NULL),
mfGain(1.0f),
mbAutoAdjust (true),
mpEFXManager(apEFXManager)
{
if (mpEFXManager->IsThreadAlive())
mpMutex = SDL_CreateMutex();
mbStatus = CreateLowLevelID();
}
cOAL_EffectSlot::~cOAL_EffectSlot()
{
if(mpMutex)
SDL_DestroyMutex(mpMutex);
DestroyLowLevelID();
}
bool cOAL_EffectSlot::CreateLowLevelID()
{
DEF_FUNC_NAME("cOAL_EffectSlot::CreateLowLevelID()");
FUNC_USES_AL;
RUN_AL_FUNC(alGenAuxiliaryEffectSlots(1,&mlObjectId));
return (!AL_ERROR_OCCURED && IsValidObject());
}
bool cOAL_EffectSlot::DestroyLowLevelID()
{
DEF_FUNC_NAME("cOAL_EffectSlot::DestroyLowLevelID()");
FUNC_USES_AL;
RUN_AL_FUNC(alDeleteAuxiliaryEffectSlots(1,&mlObjectId));
return (!AL_ERROR_OCCURED && !IsValidObject());
}
bool cOAL_EffectSlot::IsValidObject()
{
DEF_FUNC_NAME("cOAL_EffectSlot::IsValidObject()");
FUNC_USES_AL;
return (alIsAuxiliaryEffectSlot(mlObjectId) == AL_TRUE);
}
void cOAL_EffectSlot::Reset()
{
this->SetGain(0);
this->AttachEffect(NULL);
}
bool cOAL_EffectSlot::AttachEffect ( cOAL_Effect *apEffect )
{
DEF_FUNC_NAME("cOAL_EffectSlot::AttachEffect()");
FUNC_USES_AL;
mpEffect = apEffect;
RUN_AL_FUNC ( alAuxiliaryEffectSloti (mlObjectId, AL_EFFECTSLOT_EFFECT, ((mpEffect == NULL)? AL_EFFECT_NULL : mpEffect->GetEffectID()) ) );
return !AL_ERROR_OCCURED;
}
void cOAL_EffectSlot::SetGain ( float afGain )
{
DEF_FUNC_NAME("");
FUNC_USES_AL;
if (afGain <0)
afGain = 0;
if (afGain >1)
afGain = 1;
RUN_AL_FUNC( alAuxiliaryEffectSlotf (mlObjectId, AL_EFFECTSLOT_GAIN, afGain));
}
void cOAL_EffectSlot::SetAutoAdjust( bool abAuto )
{
DEF_FUNC_NAME("");
FUNC_USES_AL;
RUN_AL_FUNC( alAuxiliaryEffectSloti (mlObjectId, AL_EFFECTSLOT_AUXILIARY_SEND_AUTO, (ALboolean) abAuto));
}
void cOAL_EffectSlot::Update()
{
DEF_FUNC_NAME("");
FUNC_USES_AL;
if (mpEffect)
{
mpEffect->Lock();
if (mpEffect->NeedsUpdate())
{
RUN_AL_FUNC( alAuxiliaryEffectSloti(mlObjectId, AL_EFFECTSLOT_EFFECT, mpEffect->GetEffectID()) );
//LogMsg("",eOAL_LogVerbose_Medium, eOAL_LogMsg_Info, "Slot updated\n");
mpEffect->SetUpdated();
}
mpEffect->Unlock();
}
}
void cOAL_EffectSlot::Lock()
{
if ( mpEFXManager->IsThreadAlive() )
SDL_LockMutex(mpMutex);
}
void cOAL_EffectSlot::Unlock()
{
if ( mpEFXManager->IsThreadAlive() )
SDL_UnlockMutex(mpMutex);
}