🛠️🐜 Antkeeper superbuild with dependencies included https://antkeeper.com
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/**
* OpenAL cross platform audio library
* Copyright (C) 1999-2007 by authors.
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
* Or go to http://www.gnu.org/copyleft/lgpl.html
*/
#include "config.h"
#include <cstdlib>
#include <cmath>
#include <thread>
#include <algorithm>
#include "AL/al.h"
#include "AL/alc.h"
#include "alMain.h"
#include "alcontext.h"
#include "alAuxEffectSlot.h"
#include "alError.h"
#include "alListener.h"
#include "alSource.h"
#include "fpu_modes.h"
#include "alexcpt.h"
#include "almalloc.h"
namespace {
inline ALeffectslot *LookupEffectSlot(ALCcontext *context, ALuint id) noexcept
{
ALuint lidx = (id-1) >> 6;
ALsizei slidx = (id-1) & 0x3f;
if(UNLIKELY(lidx >= context->EffectSlotList.size()))
return nullptr;
EffectSlotSubList &sublist{context->EffectSlotList[lidx]};
if(UNLIKELY(sublist.FreeMask & (1_u64 << slidx)))
return nullptr;
return sublist.EffectSlots + slidx;
}
inline ALeffect *LookupEffect(ALCdevice *device, ALuint id) noexcept
{
ALuint lidx = (id-1) >> 6;
ALsizei slidx = (id-1) & 0x3f;
if(UNLIKELY(lidx >= device->EffectList.size()))
return nullptr;
EffectSubList &sublist = device->EffectList[lidx];
if(UNLIKELY(sublist.FreeMask & (1_u64 << slidx)))
return nullptr;
return sublist.Effects + slidx;
}
void AddActiveEffectSlots(const ALuint *slotids, ALsizei count, ALCcontext *context)
{
if(count < 1) return;
ALeffectslotArray *curarray{context->ActiveAuxSlots.load(std::memory_order_acquire)};
size_t newcount{curarray->size() + count};
/* Insert the new effect slots into the head of the array, followed by the
* existing ones.
*/
ALeffectslotArray *newarray = ALeffectslot::CreatePtrArray(newcount);
auto slotiter = std::transform(slotids, slotids+count, newarray->begin(),
[context](ALuint id) noexcept -> ALeffectslot*
{ return LookupEffectSlot(context, id); }
);
std::copy(curarray->begin(), curarray->end(), slotiter);
/* Remove any duplicates (first instance of each will be kept). */
auto last = newarray->end();
for(auto start=newarray->begin()+1;;)
{
last = std::remove(start, last, *(start-1));
if(start == last) break;
++start;
}
newcount = static_cast<size_t>(std::distance(newarray->begin(), last));
/* Reallocate newarray if the new size ended up smaller from duplicate
* removal.
*/
if(UNLIKELY(newcount < newarray->size()))
{
curarray = newarray;
newarray = ALeffectslot::CreatePtrArray(newcount);
std::copy_n(curarray->begin(), newcount, newarray->begin());
delete curarray;
curarray = nullptr;
}
curarray = context->ActiveAuxSlots.exchange(newarray, std::memory_order_acq_rel);
ALCdevice *device{context->Device};
while((device->MixCount.load(std::memory_order_acquire)&1))
std::this_thread::yield();
delete curarray;
}
void RemoveActiveEffectSlots(const ALuint *slotids, ALsizei count, ALCcontext *context)
{
if(count < 1) return;
ALeffectslotArray *curarray{context->ActiveAuxSlots.load(std::memory_order_acquire)};
/* Don't shrink the allocated array size since we don't know how many (if
* any) of the effect slots to remove are in the array.
*/
ALeffectslotArray *newarray = ALeffectslot::CreatePtrArray(curarray->size());
/* Copy each element in curarray to newarray whose ID is not in slotids. */
const ALuint *slotids_end{slotids + count};
auto slotiter = std::copy_if(curarray->begin(), curarray->end(), newarray->begin(),
[slotids, slotids_end](const ALeffectslot *slot) -> bool
{ return std::find(slotids, slotids_end, slot->id) == slotids_end; }
);
/* Reallocate with the new size. */
auto newsize = static_cast<size_t>(std::distance(newarray->begin(), slotiter));
if(LIKELY(newsize != newarray->size()))
{
curarray = newarray;
newarray = ALeffectslot::CreatePtrArray(newsize);
std::copy_n(curarray->begin(), newsize, newarray->begin());
delete curarray;
curarray = nullptr;
}
curarray = context->ActiveAuxSlots.exchange(newarray, std::memory_order_acq_rel);
ALCdevice *device{context->Device};
while((device->MixCount.load(std::memory_order_acquire)&1))
std::this_thread::yield();
delete curarray;
}
ALeffectslot *AllocEffectSlot(ALCcontext *context)
{
ALCdevice *device{context->Device};
std::lock_guard<std::mutex> _{context->EffectSlotLock};
if(context->NumEffectSlots >= device->AuxiliaryEffectSlotMax)
{
alSetError(context, AL_OUT_OF_MEMORY, "Exceeding %u effect slot limit",
device->AuxiliaryEffectSlotMax);
return nullptr;
}
auto sublist = std::find_if(context->EffectSlotList.begin(), context->EffectSlotList.end(),
[](const EffectSlotSubList &entry) noexcept -> bool
{ return entry.FreeMask != 0; }
);
auto lidx = static_cast<ALsizei>(std::distance(context->EffectSlotList.begin(), sublist));
ALeffectslot *slot;
ALsizei slidx;
if(LIKELY(sublist != context->EffectSlotList.end()))
{
slidx = CTZ64(sublist->FreeMask);
slot = sublist->EffectSlots + slidx;
}
else
{
/* Don't allocate so many list entries that the 32-bit ID could
* overflow...
*/
if(UNLIKELY(context->EffectSlotList.size() >= 1<<25))
{
alSetError(context, AL_OUT_OF_MEMORY, "Too many effect slots allocated");
return nullptr;
}
context->EffectSlotList.emplace_back();
sublist = context->EffectSlotList.end() - 1;
sublist->FreeMask = ~0_u64;
sublist->EffectSlots = static_cast<ALeffectslot*>(al_calloc(16, sizeof(ALeffectslot)*64));
if(UNLIKELY(!sublist->EffectSlots))
{
context->EffectSlotList.pop_back();
alSetError(context, AL_OUT_OF_MEMORY, "Failed to allocate effect slot batch");
return nullptr;
}
slidx = 0;
slot = sublist->EffectSlots + slidx;
}
slot = new (slot) ALeffectslot{};
ALenum err{InitEffectSlot(slot)};
if(err != AL_NO_ERROR)
{
slot->~ALeffectslot();
alSetError(context, err, "Effect slot object initialization failed");
return nullptr;
}
aluInitEffectPanning(slot, device);
/* Add 1 to avoid source ID 0. */
slot->id = ((lidx<<6) | slidx) + 1;
context->NumEffectSlots += 1;
sublist->FreeMask &= ~(1_u64 << slidx);
return slot;
}
void FreeEffectSlot(ALCcontext *context, ALeffectslot *slot)
{
ALuint id = slot->id - 1;
ALsizei lidx = id >> 6;
ALsizei slidx = id & 0x3f;
slot->~ALeffectslot();
context->EffectSlotList[lidx].FreeMask |= 1_u64 << slidx;
context->NumEffectSlots--;
}
#define DO_UPDATEPROPS() do { \
if(!context->DeferUpdates.load(std::memory_order_acquire)) \
UpdateEffectSlotProps(slot, context.get()); \
else \
slot->PropsClean.clear(std::memory_order_release); \
} while(0)
} // namespace
ALeffectslotArray *ALeffectslot::CreatePtrArray(size_t count) noexcept
{
/* Allocate space for twice as many pointers, so the mixer has scratch
* space to store a sorted list during mixing.
*/
void *ptr{al_calloc(DEF_ALIGN, ALeffectslotArray::Sizeof(count*2))};
return new (ptr) ALeffectslotArray{count};
}
AL_API ALvoid AL_APIENTRY alGenAuxiliaryEffectSlots(ALsizei n, ALuint *effectslots)
START_API_FUNC
{
ContextRef context{GetContextRef()};
if(UNLIKELY(!context)) return;
if(n < 0)
SETERR_RETURN(context.get(), AL_INVALID_VALUE,, "Generating %d effect slots", n);
if(n == 0) return;
if(n == 1)
{
ALeffectslot *slot{AllocEffectSlot(context.get())};
if(!slot) return;
effectslots[0] = slot->id;
}
else
{
auto tempids = al::vector<ALuint>(n);
auto alloc_end = std::find_if_not(tempids.begin(), tempids.end(),
[&context](ALuint &id) -> bool
{
ALeffectslot *slot{AllocEffectSlot(context.get())};
if(!slot) return false;
id = slot->id;
return true;
}
);
if(alloc_end != tempids.end())
{
auto count = static_cast<ALsizei>(std::distance(tempids.begin(), alloc_end));
alDeleteAuxiliaryEffectSlots(count, tempids.data());
return;
}
std::copy(tempids.cbegin(), tempids.cend(), effectslots);
}
std::unique_lock<std::mutex> slotlock{context->EffectSlotLock};
AddActiveEffectSlots(effectslots, n, context.get());
}
END_API_FUNC
AL_API ALvoid AL_APIENTRY alDeleteAuxiliaryEffectSlots(ALsizei n, const ALuint *effectslots)
START_API_FUNC
{
ContextRef context{GetContextRef()};
if(UNLIKELY(!context)) return;
if(n < 0)
SETERR_RETURN(context.get(), AL_INVALID_VALUE,, "Deleting %d effect slots", n);
if(n == 0) return;
std::lock_guard<std::mutex> _{context->EffectSlotLock};
auto effectslots_end = effectslots + n;
auto bad_slot = std::find_if(effectslots, effectslots_end,
[&context](ALuint id) -> bool
{
ALeffectslot *slot{LookupEffectSlot(context.get(), id)};
if(!slot)
{
alSetError(context.get(), AL_INVALID_NAME, "Invalid effect slot ID %u", id);
return true;
}
if(ReadRef(&slot->ref) != 0)
{
alSetError(context.get(), AL_INVALID_NAME, "Deleting in-use effect slot %u", id);
return true;
}
return false;
}
);
if(bad_slot != effectslots_end)
return;
// All effectslots are valid, remove and delete them
RemoveActiveEffectSlots(effectslots, n, context.get());
std::for_each(effectslots, effectslots_end,
[&context](ALuint sid) -> void
{
ALeffectslot *slot{LookupEffectSlot(context.get(), sid)};
if(slot) FreeEffectSlot(context.get(), slot);
}
);
}
END_API_FUNC
AL_API ALboolean AL_APIENTRY alIsAuxiliaryEffectSlot(ALuint effectslot)
START_API_FUNC
{
ContextRef context{GetContextRef()};
if(LIKELY(context))
{
std::lock_guard<std::mutex> _{context->EffectSlotLock};
if(LookupEffectSlot(context.get(), effectslot) != nullptr)
return AL_TRUE;
}
return AL_FALSE;
}
END_API_FUNC
AL_API ALvoid AL_APIENTRY alAuxiliaryEffectSloti(ALuint effectslot, ALenum param, ALint value)
START_API_FUNC
{
ContextRef context{GetContextRef()};
if(UNLIKELY(!context)) return;
std::lock_guard<std::mutex> _{context->PropLock};
std::lock_guard<std::mutex> __{context->EffectSlotLock};
ALeffectslot *slot = LookupEffectSlot(context.get(), effectslot);
if(UNLIKELY(!slot))
SETERR_RETURN(context.get(), AL_INVALID_NAME,, "Invalid effect slot ID %u", effectslot);
ALeffectslot *target{};
ALCdevice *device{};
ALenum err{};
switch(param)
{
case AL_EFFECTSLOT_EFFECT:
device = context->Device;
{ std::lock_guard<std::mutex> ___{device->EffectLock};
ALeffect *effect{value ? LookupEffect(device, value) : nullptr};
if(!(value == 0 || effect != nullptr))
SETERR_RETURN(context.get(), AL_INVALID_VALUE,, "Invalid effect ID %u", value);
err = InitializeEffect(context.get(), slot, effect);
}
if(err != AL_NO_ERROR)
{
alSetError(context.get(), err, "Effect initialization failed");
return;
}
break;
case AL_EFFECTSLOT_AUXILIARY_SEND_AUTO:
if(!(value == AL_TRUE || value == AL_FALSE))
SETERR_RETURN(context.get(), AL_INVALID_VALUE,,
"Effect slot auxiliary send auto out of range");
slot->AuxSendAuto = value;
break;
case AL_EFFECTSLOT_TARGET_SOFT:
target = (value ? LookupEffectSlot(context.get(), value) : nullptr);
if(value && !target)
SETERR_RETURN(context.get(), AL_INVALID_VALUE,, "Invalid effect slot target ID");
if(target)
{
ALeffectslot *checker{target};
while(checker && checker != slot)
checker = checker->Target;
if(checker)
SETERR_RETURN(context.get(), AL_INVALID_OPERATION,,
"Setting target of effect slot ID %u to %u creates circular chain", slot->id,
target->id);
}
if(ALeffectslot *oldtarget{slot->Target})
{
/* We must force an update if there was an existing effect slot
* target, in case it's about to be deleted.
*/
if(target) IncrementRef(&target->ref);
DecrementRef(&oldtarget->ref);
slot->Target = target;
UpdateEffectSlotProps(slot, context.get());
return;
}
if(target) IncrementRef(&target->ref);
slot->Target = target;
break;
default:
SETERR_RETURN(context.get(), AL_INVALID_ENUM,,
"Invalid effect slot integer property 0x%04x", param);
}
DO_UPDATEPROPS();
}
END_API_FUNC
AL_API ALvoid AL_APIENTRY alAuxiliaryEffectSlotiv(ALuint effectslot, ALenum param, const ALint *values)
START_API_FUNC
{
switch(param)
{
case AL_EFFECTSLOT_EFFECT:
case AL_EFFECTSLOT_AUXILIARY_SEND_AUTO:
case AL_EFFECTSLOT_TARGET_SOFT:
alAuxiliaryEffectSloti(effectslot, param, values[0]);
return;
}
ContextRef context{GetContextRef()};
if(UNLIKELY(!context)) return;
std::lock_guard<std::mutex> _{context->EffectSlotLock};
ALeffectslot *slot = LookupEffectSlot(context.get(), effectslot);
if(UNLIKELY(!slot))
SETERR_RETURN(context.get(), AL_INVALID_NAME,, "Invalid effect slot ID %u", effectslot);
switch(param)
{
default:
SETERR_RETURN(context.get(), AL_INVALID_ENUM,,
"Invalid effect slot integer-vector property 0x%04x", param);
}
}
END_API_FUNC
AL_API ALvoid AL_APIENTRY alAuxiliaryEffectSlotf(ALuint effectslot, ALenum param, ALfloat value)
START_API_FUNC
{
ContextRef context{GetContextRef()};
if(UNLIKELY(!context)) return;
std::lock_guard<std::mutex> _{context->PropLock};
std::lock_guard<std::mutex> __{context->EffectSlotLock};
ALeffectslot *slot = LookupEffectSlot(context.get(), effectslot);
if(UNLIKELY(!slot))
SETERR_RETURN(context.get(), AL_INVALID_NAME,, "Invalid effect slot ID %u", effectslot);
switch(param)
{
case AL_EFFECTSLOT_GAIN:
if(!(value >= 0.0f && value <= 1.0f))
SETERR_RETURN(context.get(), AL_INVALID_VALUE,, "Effect slot gain out of range");
slot->Gain = value;
break;
default:
SETERR_RETURN(context.get(), AL_INVALID_ENUM,, "Invalid effect slot float property 0x%04x",
param);
}
DO_UPDATEPROPS();
}
END_API_FUNC
AL_API ALvoid AL_APIENTRY alAuxiliaryEffectSlotfv(ALuint effectslot, ALenum param, const ALfloat *values)
START_API_FUNC
{
switch(param)
{
case AL_EFFECTSLOT_GAIN:
alAuxiliaryEffectSlotf(effectslot, param, values[0]);
return;
}
ContextRef context{GetContextRef()};
if(UNLIKELY(!context)) return;
std::lock_guard<std::mutex> _{context->EffectSlotLock};
ALeffectslot *slot = LookupEffectSlot(context.get(), effectslot);
if(UNLIKELY(!slot))
SETERR_RETURN(context.get(), AL_INVALID_NAME,, "Invalid effect slot ID %u", effectslot);
switch(param)
{
default:
SETERR_RETURN(context.get(), AL_INVALID_ENUM,,
"Invalid effect slot float-vector property 0x%04x", param);
}
}
END_API_FUNC
AL_API ALvoid AL_APIENTRY alGetAuxiliaryEffectSloti(ALuint effectslot, ALenum param, ALint *value)
START_API_FUNC
{
ContextRef context{GetContextRef()};
if(UNLIKELY(!context)) return;
std::lock_guard<std::mutex> _{context->EffectSlotLock};
ALeffectslot *slot = LookupEffectSlot(context.get(), effectslot);
if(UNLIKELY(!slot))
SETERR_RETURN(context.get(), AL_INVALID_NAME,, "Invalid effect slot ID %u", effectslot);
switch(param)
{
case AL_EFFECTSLOT_AUXILIARY_SEND_AUTO:
*value = slot->AuxSendAuto;
break;
case AL_EFFECTSLOT_TARGET_SOFT:
*value = slot->Target ? slot->Target->id : 0;
break;
default:
SETERR_RETURN(context.get(), AL_INVALID_ENUM,,
"Invalid effect slot integer property 0x%04x", param);
}
}
END_API_FUNC
AL_API ALvoid AL_APIENTRY alGetAuxiliaryEffectSlotiv(ALuint effectslot, ALenum param, ALint *values)
START_API_FUNC
{
switch(param)
{
case AL_EFFECTSLOT_EFFECT:
case AL_EFFECTSLOT_AUXILIARY_SEND_AUTO:
case AL_EFFECTSLOT_TARGET_SOFT:
alGetAuxiliaryEffectSloti(effectslot, param, values);
return;
}
ContextRef context{GetContextRef()};
if(UNLIKELY(!context)) return;
std::lock_guard<std::mutex> _{context->EffectSlotLock};
ALeffectslot *slot = LookupEffectSlot(context.get(), effectslot);
if(UNLIKELY(!slot))
SETERR_RETURN(context.get(), AL_INVALID_NAME,, "Invalid effect slot ID %u", effectslot);
switch(param)
{
default:
SETERR_RETURN(context.get(), AL_INVALID_ENUM,,
"Invalid effect slot integer-vector property 0x%04x", param);
}
}
END_API_FUNC
AL_API ALvoid AL_APIENTRY alGetAuxiliaryEffectSlotf(ALuint effectslot, ALenum param, ALfloat *value)
START_API_FUNC
{
ContextRef context{GetContextRef()};
if(UNLIKELY(!context)) return;
std::lock_guard<std::mutex> _{context->EffectSlotLock};
ALeffectslot *slot = LookupEffectSlot(context.get(), effectslot);
if(UNLIKELY(!slot))
SETERR_RETURN(context.get(), AL_INVALID_NAME,, "Invalid effect slot ID %u", effectslot);
switch(param)
{
case AL_EFFECTSLOT_GAIN:
*value = slot->Gain;
break;
default:
SETERR_RETURN(context.get(), AL_INVALID_ENUM,,
"Invalid effect slot float property 0x%04x", param);
}
}
END_API_FUNC
AL_API ALvoid AL_APIENTRY alGetAuxiliaryEffectSlotfv(ALuint effectslot, ALenum param, ALfloat *values)
START_API_FUNC
{
switch(param)
{
case AL_EFFECTSLOT_GAIN:
alGetAuxiliaryEffectSlotf(effectslot, param, values);
return;
}
ContextRef context{GetContextRef()};
if(UNLIKELY(!context)) return;
std::lock_guard<std::mutex> _{context->EffectSlotLock};
ALeffectslot *slot = LookupEffectSlot(context.get(), effectslot);
if(UNLIKELY(!slot))
SETERR_RETURN(context.get(), AL_INVALID_NAME,, "Invalid effect slot ID %u", effectslot);
switch(param)
{
default:
SETERR_RETURN(context.get(), AL_INVALID_ENUM,,
"Invalid effect slot float-vector property 0x%04x", param);
}
}
END_API_FUNC
ALenum InitializeEffect(ALCcontext *Context, ALeffectslot *EffectSlot, ALeffect *effect)
{
ALenum newtype{effect ? effect->type : AL_EFFECT_NULL};
if(newtype != EffectSlot->Effect.Type)
{
EffectStateFactory *factory{getFactoryByType(newtype)};
if(!factory)
{
ERR("Failed to find factory for effect type 0x%04x\n", newtype);
return AL_INVALID_ENUM;
}
EffectState *State{factory->create()};
if(!State) return AL_OUT_OF_MEMORY;
FPUCtl mixer_mode{};
ALCdevice *Device{Context->Device};
std::unique_lock<std::mutex> statelock{Device->StateLock};
State->mOutBuffer = Device->Dry.Buffer;
State->mOutChannels = Device->Dry.NumChannels;
if(State->deviceUpdate(Device) == AL_FALSE)
{
statelock.unlock();
mixer_mode.leave();
State->DecRef();
return AL_OUT_OF_MEMORY;
}
mixer_mode.leave();
if(!effect)
{
EffectSlot->Effect.Type = AL_EFFECT_NULL;
EffectSlot->Effect.Props = EffectProps {};
}
else
{
EffectSlot->Effect.Type = effect->type;
EffectSlot->Effect.Props = effect->Props;
}
EffectSlot->Effect.State->DecRef();
EffectSlot->Effect.State = State;
}
else if(effect)
EffectSlot->Effect.Props = effect->Props;
/* Remove state references from old effect slot property updates. */
ALeffectslotProps *props{Context->FreeEffectslotProps.load()};
while(props)
{
if(props->State)
props->State->DecRef();
props->State = nullptr;
props = props->next.load(std::memory_order_relaxed);
}
return AL_NO_ERROR;
}
void EffectState::IncRef() noexcept
{
auto ref = IncrementRef(&mRef);
TRACEREF("%p increasing refcount to %u\n", this, ref);
}
void EffectState::DecRef() noexcept
{
auto ref = DecrementRef(&mRef);
TRACEREF("%p decreasing refcount to %u\n", this, ref);
if(ref == 0) delete this;
}
ALenum InitEffectSlot(ALeffectslot *slot)
{
EffectStateFactory *factory{getFactoryByType(slot->Effect.Type)};
if(!factory) return AL_INVALID_VALUE;
slot->Effect.State = factory->create();
if(!slot->Effect.State) return AL_OUT_OF_MEMORY;
slot->Effect.State->IncRef();
slot->Params.mEffectState = slot->Effect.State;
return AL_NO_ERROR;
}
ALeffectslot::~ALeffectslot()
{
if(Target)
DecrementRef(&Target->ref);
Target = nullptr;
ALeffectslotProps *props{Update.load()};
if(props)
{
if(props->State) props->State->DecRef();
TRACE("Freed unapplied AuxiliaryEffectSlot update %p\n", props);
al_free(props);
}
if(Effect.State)
Effect.State->DecRef();
if(Params.mEffectState)
Params.mEffectState->DecRef();
}
void UpdateEffectSlotProps(ALeffectslot *slot, ALCcontext *context)
{
/* Get an unused property container, or allocate a new one as needed. */
ALeffectslotProps *props{context->FreeEffectslotProps.load(std::memory_order_relaxed)};
if(!props)
props = static_cast<ALeffectslotProps*>(al_calloc(16, sizeof(*props)));
else
{
ALeffectslotProps *next;
do {
next = props->next.load(std::memory_order_relaxed);
} while(context->FreeEffectslotProps.compare_exchange_weak(props, next,
std::memory_order_seq_cst, std::memory_order_acquire) == 0);
}
/* Copy in current property values. */
props->Gain = slot->Gain;
props->AuxSendAuto = slot->AuxSendAuto;
props->Target = slot->Target;
props->Type = slot->Effect.Type;
props->Props = slot->Effect.Props;
/* Swap out any stale effect state object there may be in the container, to
* delete it.
*/
EffectState *oldstate{props->State};
slot->Effect.State->IncRef();
props->State = slot->Effect.State;
/* Set the new container for updating internal parameters. */
props = slot->Update.exchange(props, std::memory_order_acq_rel);
if(props)
{
/* If there was an unused update container, put it back in the
* freelist.
*/
if(props->State)
props->State->DecRef();
props->State = nullptr;
AtomicReplaceHead(context->FreeEffectslotProps, props);
}
if(oldstate)
oldstate->DecRef();
}
void UpdateAllEffectSlotProps(ALCcontext *context)
{
std::lock_guard<std::mutex> _{context->EffectSlotLock};
ALeffectslotArray *auxslots{context->ActiveAuxSlots.load(std::memory_order_acquire)};
for(ALeffectslot *slot : *auxslots)
{
if(!slot->PropsClean.test_and_set(std::memory_order_acq_rel))
UpdateEffectSlotProps(slot, context);
}
}
EffectSlotSubList::~EffectSlotSubList()
{
uint64_t usemask{~FreeMask};
while(usemask)
{
ALsizei idx{CTZ64(usemask)};
EffectSlots[idx].~ALeffectslot();
usemask &= ~(1_u64 << idx);
}
FreeMask = ~usemask;
al_free(EffectSlots);
EffectSlots = nullptr;
}