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axmol/external/openal/al/auxeffectslot.cpp

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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 "auxeffectslot.h"
#include <algorithm>
#include <cassert>
#include <cstdint>
#include <iterator>
#include <memory>
#include <mutex>
#include <numeric>
#include <thread>
#include "AL/al.h"
#include "AL/alc.h"
#include "AL/efx.h"
#include "albit.h"
#include "alcmain.h"
#include "alcontext.h"
#include "almalloc.h"
#include "alnumeric.h"
#include "alspan.h"
#include "alu.h"
#include "buffer.h"
#include "core/except.h"
#include "core/fpu_ctrl.h"
#include "core/logging.h"
#include "effect.h"
#include "inprogext.h"
#include "opthelpers.h"
namespace {
struct FactoryItem {
EffectSlotType Type;
EffectStateFactory* (&GetFactory)(void);
};
constexpr FactoryItem FactoryList[] = {
{ EffectSlotType::None, NullStateFactory_getFactory },
{ EffectSlotType::EAXReverb, ReverbStateFactory_getFactory },
{ EffectSlotType::Reverb, StdReverbStateFactory_getFactory },
{ EffectSlotType::Autowah, AutowahStateFactory_getFactory },
{ EffectSlotType::Chorus, ChorusStateFactory_getFactory },
{ EffectSlotType::Compressor, CompressorStateFactory_getFactory },
{ EffectSlotType::Distortion, DistortionStateFactory_getFactory },
{ EffectSlotType::Echo, EchoStateFactory_getFactory },
{ EffectSlotType::Equalizer, EqualizerStateFactory_getFactory },
{ EffectSlotType::Flanger, FlangerStateFactory_getFactory },
{ EffectSlotType::FrequencyShifter, FshifterStateFactory_getFactory },
{ EffectSlotType::RingModulator, ModulatorStateFactory_getFactory },
{ EffectSlotType::PitchShifter, PshifterStateFactory_getFactory },
{ EffectSlotType::VocalMorpher, VmorpherStateFactory_getFactory },
{ EffectSlotType::DedicatedDialog, DedicatedStateFactory_getFactory },
{ EffectSlotType::DedicatedLFE, DedicatedStateFactory_getFactory },
{ EffectSlotType::Convolution, ConvolutionStateFactory_getFactory },
};
EffectStateFactory *getFactoryByType(EffectSlotType type)
{
auto iter = std::find_if(std::begin(FactoryList), std::end(FactoryList),
[type](const FactoryItem &item) noexcept -> bool
{ return item.Type == type; });
return (iter != std::end(FactoryList)) ? iter->GetFactory() : nullptr;
}
inline ALeffectslot *LookupEffectSlot(ALCcontext *context, ALuint id) noexcept
{
const size_t lidx{(id-1) >> 6};
const ALuint slidx{(id-1) & 0x3f};
if UNLIKELY(lidx >= context->mEffectSlotList.size())
return nullptr;
EffectSlotSubList &sublist{context->mEffectSlotList[lidx]};
if UNLIKELY(sublist.FreeMask & (1_u64 << slidx))
return nullptr;
return sublist.EffectSlots + slidx;
}
inline ALeffect *LookupEffect(ALCdevice *device, ALuint id) noexcept
{
const size_t lidx{(id-1) >> 6};
const ALuint 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;
}
inline ALbuffer *LookupBuffer(ALCdevice *device, ALuint id) noexcept
{
const size_t lidx{(id-1) >> 6};
const ALuint slidx{(id-1) & 0x3f};
if UNLIKELY(lidx >= device->BufferList.size())
return nullptr;
BufferSubList &sublist = device->BufferList[lidx];
if UNLIKELY(sublist.FreeMask & (1_u64 << slidx))
return nullptr;
return sublist.Buffers + slidx;
}
inline auto GetEffectBuffer(ALbuffer *buffer) noexcept -> EffectState::Buffer
{
if(!buffer) return EffectState::Buffer{};
return EffectState::Buffer{buffer, buffer->mData};
}
void AddActiveEffectSlots(const al::span<ALeffectslot*> auxslots, ALCcontext *context)
{
if(auxslots.empty()) return;
EffectSlotArray *curarray{context->mActiveAuxSlots.load(std::memory_order_acquire)};
size_t newcount{curarray->size() + auxslots.size()};
/* Insert the new effect slots into the head of the array, followed by the
* existing ones.
*/
EffectSlotArray *newarray = EffectSlot::CreatePtrArray(newcount);
auto slotiter = std::transform(auxslots.begin(), auxslots.end(), newarray->begin(),
[](ALeffectslot *auxslot) noexcept { return &auxslot->mSlot; });
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 = EffectSlot::CreatePtrArray(newcount);
std::copy_n(curarray->begin(), newcount, newarray->begin());
delete curarray;
curarray = nullptr;
}
std::uninitialized_fill_n(newarray->end(), newcount, nullptr);
curarray = context->mActiveAuxSlots.exchange(newarray, std::memory_order_acq_rel);
context->mDevice->waitForMix();
al::destroy_n(curarray->end(), curarray->size());
delete curarray;
}
void RemoveActiveEffectSlots(const al::span<ALeffectslot*> auxslots, ALCcontext *context)
{
if(auxslots.empty()) return;
EffectSlotArray *curarray{context->mActiveAuxSlots.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.
*/
EffectSlotArray *newarray = EffectSlot::CreatePtrArray(curarray->size());
auto new_end = std::copy(curarray->begin(), curarray->end(), newarray->begin());
/* Remove elements from newarray that match any ID in slotids. */
for(const ALeffectslot *auxslot : auxslots)
{
auto slot_match = [auxslot](EffectSlot *slot) noexcept -> bool
{ return (slot == &auxslot->mSlot); };
new_end = std::remove_if(newarray->begin(), new_end, slot_match);
}
/* Reallocate with the new size. */
auto newsize = static_cast<size_t>(std::distance(newarray->begin(), new_end));
if LIKELY(newsize != newarray->size())
{
curarray = newarray;
newarray = EffectSlot::CreatePtrArray(newsize);
std::copy_n(curarray->begin(), newsize, newarray->begin());
delete curarray;
curarray = nullptr;
}
std::uninitialized_fill_n(newarray->end(), newsize, nullptr);
curarray = context->mActiveAuxSlots.exchange(newarray, std::memory_order_acq_rel);
context->mDevice->waitForMix();
al::destroy_n(curarray->end(), curarray->size());
delete curarray;
}
EffectSlotType EffectSlotTypeFromEnum(ALenum type)
{
switch(type)
{
case AL_EFFECT_NULL: return EffectSlotType::None;
case AL_EFFECT_REVERB: return EffectSlotType::Reverb;
case AL_EFFECT_CHORUS: return EffectSlotType::Chorus;
case AL_EFFECT_DISTORTION: return EffectSlotType::Distortion;
case AL_EFFECT_ECHO: return EffectSlotType::Echo;
case AL_EFFECT_FLANGER: return EffectSlotType::Flanger;
case AL_EFFECT_FREQUENCY_SHIFTER: return EffectSlotType::FrequencyShifter;
case AL_EFFECT_VOCAL_MORPHER: return EffectSlotType::VocalMorpher;
case AL_EFFECT_PITCH_SHIFTER: return EffectSlotType::PitchShifter;
case AL_EFFECT_RING_MODULATOR: return EffectSlotType::RingModulator;
case AL_EFFECT_AUTOWAH: return EffectSlotType::Autowah;
case AL_EFFECT_COMPRESSOR: return EffectSlotType::Compressor;
case AL_EFFECT_EQUALIZER: return EffectSlotType::Equalizer;
case AL_EFFECT_EAXREVERB: return EffectSlotType::EAXReverb;
case AL_EFFECT_DEDICATED_LOW_FREQUENCY_EFFECT: return EffectSlotType::DedicatedLFE;
case AL_EFFECT_DEDICATED_DIALOGUE: return EffectSlotType::DedicatedDialog;
case AL_EFFECT_CONVOLUTION_REVERB_SOFT: return EffectSlotType::Convolution;
}
ERR("Unhandled effect enum: 0x%04x\n", type);
return EffectSlotType::None;
}
bool EnsureEffectSlots(ALCcontext *context, size_t needed)
{
size_t count{std::accumulate(context->mEffectSlotList.cbegin(),
context->mEffectSlotList.cend(), size_t{0},
[](size_t cur, const EffectSlotSubList &sublist) noexcept -> size_t
{ return cur + static_cast<ALuint>(al::popcount(sublist.FreeMask)); })};
while(needed > count)
{
if UNLIKELY(context->mEffectSlotList.size() >= 1<<25)
return false;
context->mEffectSlotList.emplace_back();
auto sublist = context->mEffectSlotList.end() - 1;
sublist->FreeMask = ~0_u64;
sublist->EffectSlots = static_cast<ALeffectslot*>(
al_calloc(alignof(ALeffectslot), sizeof(ALeffectslot)*64));
if UNLIKELY(!sublist->EffectSlots)
{
context->mEffectSlotList.pop_back();
return false;
}
count += 64;
}
return true;
}
ALeffectslot *AllocEffectSlot(ALCcontext *context)
{
auto sublist = std::find_if(context->mEffectSlotList.begin(), context->mEffectSlotList.end(),
[](const EffectSlotSubList &entry) noexcept -> bool
{ return entry.FreeMask != 0; });
auto lidx = static_cast<ALuint>(std::distance(context->mEffectSlotList.begin(), sublist));
auto slidx = static_cast<ALuint>(al::countr_zero(sublist->FreeMask));
ALeffectslot *slot{::new(sublist->EffectSlots + slidx) ALeffectslot{}};
aluInitEffectPanning(&slot->mSlot, context);
/* Add 1 to avoid source ID 0. */
slot->id = ((lidx<<6) | slidx) + 1;
context->mNumEffectSlots += 1;
sublist->FreeMask &= ~(1_u64 << slidx);
return slot;
}
void FreeEffectSlot(ALCcontext *context, ALeffectslot *slot)
{
const ALuint id{slot->id - 1};
const size_t lidx{id >> 6};
const ALuint slidx{id & 0x3f};
al::destroy_at(slot);
context->mEffectSlotList[lidx].FreeMask |= 1_u64 << slidx;
context->mNumEffectSlots--;
}
#define DO_UPDATEPROPS() do { \
if(!context->mDeferUpdates.load(std::memory_order_acquire) \
&& slot->mState == SlotState::Playing) \
slot->updateProps(context.get()); \
else \
slot->PropsClean.clear(std::memory_order_release); \
} while(0)
} // namespace
AL_API void AL_APIENTRY alGenAuxiliaryEffectSlots(ALsizei n, ALuint *effectslots)
START_API_FUNC
{
ContextRef context{GetContextRef()};
if UNLIKELY(!context) return;
if UNLIKELY(n < 0)
context->setError(AL_INVALID_VALUE, "Generating %d effect slots", n);
if UNLIKELY(n <= 0) return;
std::unique_lock<std::mutex> slotlock{context->mEffectSlotLock};
ALCdevice *device{context->mDevice.get()};
if(static_cast<ALuint>(n) > device->AuxiliaryEffectSlotMax-context->mNumEffectSlots)
{
context->setError(AL_OUT_OF_MEMORY, "Exceeding %u effect slot limit (%u + %d)",
device->AuxiliaryEffectSlotMax, context->mNumEffectSlots, n);
return;
}
if(!EnsureEffectSlots(context.get(), static_cast<ALuint>(n)))
{
context->setError(AL_OUT_OF_MEMORY, "Failed to allocate %d effectslot%s", n,
(n==1) ? "" : "s");
return;
}
if(n == 1)
{
ALeffectslot *slot{AllocEffectSlot(context.get())};
if(!slot) return;
effectslots[0] = slot->id;
}
else
{
al::vector<ALuint> ids;
ALsizei count{n};
ids.reserve(static_cast<ALuint>(count));
do {
ALeffectslot *slot{AllocEffectSlot(context.get())};
if(!slot)
{
slotlock.unlock();
alDeleteAuxiliaryEffectSlots(static_cast<ALsizei>(ids.size()), ids.data());
return;
}
ids.emplace_back(slot->id);
} while(--count);
std::copy(ids.cbegin(), ids.cend(), effectslots);
}
}
END_API_FUNC
AL_API void AL_APIENTRY alDeleteAuxiliaryEffectSlots(ALsizei n, const ALuint *effectslots)
START_API_FUNC
{
ContextRef context{GetContextRef()};
if UNLIKELY(!context) return;
if UNLIKELY(n < 0)
context->setError(AL_INVALID_VALUE, "Deleting %d effect slots", n);
if UNLIKELY(n <= 0) return;
std::lock_guard<std::mutex> _{context->mEffectSlotLock};
if(n == 1)
{
ALeffectslot *slot{LookupEffectSlot(context.get(), effectslots[0])};
if UNLIKELY(!slot)
{
context->setError(AL_INVALID_NAME, "Invalid effect slot ID %u", effectslots[0]);
return;
}
if UNLIKELY(ReadRef(slot->ref) != 0)
{
context->setError(AL_INVALID_OPERATION, "Deleting in-use effect slot %u",
effectslots[0]);
return;
}
RemoveActiveEffectSlots({&slot, 1u}, context.get());
FreeEffectSlot(context.get(), slot);
}
else
{
auto slots = al::vector<ALeffectslot*>(static_cast<ALuint>(n));
for(size_t i{0};i < slots.size();++i)
{
ALeffectslot *slot{LookupEffectSlot(context.get(), effectslots[i])};
if UNLIKELY(!slot)
{
context->setError(AL_INVALID_NAME, "Invalid effect slot ID %u", effectslots[i]);
return;
}
if UNLIKELY(ReadRef(slot->ref) != 0)
{
context->setError(AL_INVALID_OPERATION, "Deleting in-use effect slot %u",
effectslots[i]);
return;
}
slots[i] = slot;
}
/* Remove any duplicates. */
auto slots_end = slots.end();
for(auto start=slots.begin()+1;start != slots_end;++start)
{
slots_end = std::remove(start, slots_end, *(start-1));
if(start == slots_end) break;
}
slots.erase(slots_end, slots.end());
/* All effectslots are valid, remove and delete them */
RemoveActiveEffectSlots(slots, context.get());
for(ALeffectslot *slot : slots)
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->mEffectSlotLock};
if(LookupEffectSlot(context.get(), effectslot) != nullptr)
return AL_TRUE;
}
return AL_FALSE;
}
END_API_FUNC
AL_API void AL_APIENTRY alAuxiliaryEffectSlotPlaySOFT(ALuint slotid)
START_API_FUNC
{
ContextRef context{GetContextRef()};
if UNLIKELY(!context) return;
std::lock_guard<std::mutex> _{context->mEffectSlotLock};
ALeffectslot *slot{LookupEffectSlot(context.get(), slotid)};
if UNLIKELY(!slot)
{
context->setError(AL_INVALID_NAME, "Invalid effect slot ID %u", slotid);
return;
}
if(slot->mState == SlotState::Playing)
return;
slot->PropsClean.test_and_set(std::memory_order_acq_rel);
slot->updateProps(context.get());
AddActiveEffectSlots({&slot, 1}, context.get());
slot->mState = SlotState::Playing;
}
END_API_FUNC
AL_API void AL_APIENTRY alAuxiliaryEffectSlotPlayvSOFT(ALsizei n, const ALuint *slotids)
START_API_FUNC
{
ContextRef context{GetContextRef()};
if UNLIKELY(!context) return;
if UNLIKELY(n < 0)
context->setError(AL_INVALID_VALUE, "Playing %d effect slots", n);
if UNLIKELY(n <= 0) return;
auto slots = al::vector<ALeffectslot*>(static_cast<ALuint>(n));
std::lock_guard<std::mutex> _{context->mEffectSlotLock};
for(size_t i{0};i < slots.size();++i)
{
ALeffectslot *slot{LookupEffectSlot(context.get(), slotids[i])};
if UNLIKELY(!slot)
{
context->setError(AL_INVALID_NAME, "Invalid effect slot ID %u", slotids[i]);
return;
}
if(slot->mState != SlotState::Playing)
{
slot->PropsClean.test_and_set(std::memory_order_acq_rel);
slot->updateProps(context.get());
}
slots[i] = slot;
};
AddActiveEffectSlots(slots, context.get());
for(auto slot : slots)
slot->mState = SlotState::Playing;
}
END_API_FUNC
AL_API void AL_APIENTRY alAuxiliaryEffectSlotStopSOFT(ALuint slotid)
START_API_FUNC
{
ContextRef context{GetContextRef()};
if UNLIKELY(!context) return;
std::lock_guard<std::mutex> _{context->mEffectSlotLock};
ALeffectslot *slot{LookupEffectSlot(context.get(), slotid)};
if UNLIKELY(!slot)
{
context->setError(AL_INVALID_NAME, "Invalid effect slot ID %u", slotid);
return;
}
RemoveActiveEffectSlots({&slot, 1}, context.get());
slot->mState = SlotState::Stopped;
}
END_API_FUNC
AL_API void AL_APIENTRY alAuxiliaryEffectSlotStopvSOFT(ALsizei n, const ALuint *slotids)
START_API_FUNC
{
ContextRef context{GetContextRef()};
if UNLIKELY(!context) return;
if UNLIKELY(n < 0)
context->setError(AL_INVALID_VALUE, "Stopping %d effect slots", n);
if UNLIKELY(n <= 0) return;
auto slots = al::vector<ALeffectslot*>(static_cast<ALuint>(n));
std::lock_guard<std::mutex> _{context->mEffectSlotLock};
for(size_t i{0};i < slots.size();++i)
{
ALeffectslot *slot{LookupEffectSlot(context.get(), slotids[i])};
if UNLIKELY(!slot)
{
context->setError(AL_INVALID_NAME, "Invalid effect slot ID %u", slotids[i]);
return;
}
slots[i] = slot;
};
RemoveActiveEffectSlots(slots, context.get());
for(auto slot : slots)
slot->mState = SlotState::Stopped;
}
END_API_FUNC
AL_API void 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->mPropLock};
std::lock_guard<std::mutex> __{context->mEffectSlotLock};
ALeffectslot *slot = LookupEffectSlot(context.get(), effectslot);
if UNLIKELY(!slot)
SETERR_RETURN(context, AL_INVALID_NAME,, "Invalid effect slot ID %u", effectslot);
ALeffectslot *target{};
ALCdevice *device{};
ALenum err{};
switch(param)
{
case AL_EFFECTSLOT_EFFECT:
device = context->mDevice.get();
{
std::lock_guard<std::mutex> ___{device->EffectLock};
ALeffect *effect{value ? LookupEffect(device, static_cast<ALuint>(value)) : nullptr};
if(!(value == 0 || effect != nullptr))
SETERR_RETURN(context, AL_INVALID_VALUE,, "Invalid effect ID %u", value);
err = slot->initEffect(effect, context.get());
}
if UNLIKELY(err != AL_NO_ERROR)
{
context->setError(err, "Effect initialization failed");
return;
}
if UNLIKELY(slot->mState == SlotState::Initial)
{
AddActiveEffectSlots({&slot, 1}, context.get());
slot->mState = SlotState::Playing;
}
break;
case AL_EFFECTSLOT_AUXILIARY_SEND_AUTO:
if(!(value == AL_TRUE || value == AL_FALSE))
SETERR_RETURN(context, AL_INVALID_VALUE,,
"Effect slot auxiliary send auto out of range");
slot->AuxSendAuto = !!value;
break;
case AL_EFFECTSLOT_TARGET_SOFT:
target = LookupEffectSlot(context.get(), static_cast<ALuint>(value));
if(value && !target)
SETERR_RETURN(context, 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, 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;
slot->updateProps(context.get());
return;
}
if(target) IncrementRef(target->ref);
slot->Target = target;
break;
case AL_BUFFER:
device = context->mDevice.get();
if(slot->mState == SlotState::Playing)
SETERR_RETURN(context, AL_INVALID_OPERATION,,
"Setting buffer on playing effect slot %u", slot->id);
{
std::lock_guard<std::mutex> ___{device->BufferLock};
ALbuffer *buffer{};
if(value)
{
buffer = LookupBuffer(device, static_cast<ALuint>(value));
if(!buffer) SETERR_RETURN(context, AL_INVALID_VALUE,, "Invalid buffer ID");
if(buffer->mCallback)
SETERR_RETURN(context, AL_INVALID_OPERATION,,
"Callback buffer not valid for effects");
IncrementRef(buffer->ref);
}
if(ALbuffer *oldbuffer{slot->Buffer})
DecrementRef(oldbuffer->ref);
slot->Buffer = buffer;
FPUCtl mixer_mode{};
auto *state = slot->Effect.State.get();
state->deviceUpdate(device, GetEffectBuffer(buffer));
}
break;
case AL_EFFECTSLOT_STATE_SOFT:
SETERR_RETURN(context, AL_INVALID_OPERATION,, "AL_EFFECTSLOT_STATE_SOFT is read-only");
default:
SETERR_RETURN(context, AL_INVALID_ENUM,, "Invalid effect slot integer property 0x%04x",
param);
}
DO_UPDATEPROPS();
}
END_API_FUNC
AL_API void 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:
case AL_EFFECTSLOT_STATE_SOFT:
case AL_BUFFER:
alAuxiliaryEffectSloti(effectslot, param, values[0]);
return;
}
ContextRef context{GetContextRef()};
if UNLIKELY(!context) return;
std::lock_guard<std::mutex> _{context->mEffectSlotLock};
ALeffectslot *slot = LookupEffectSlot(context.get(), effectslot);
if UNLIKELY(!slot)
SETERR_RETURN(context, AL_INVALID_NAME,, "Invalid effect slot ID %u", effectslot);
switch(param)
{
default:
SETERR_RETURN(context, AL_INVALID_ENUM,,
"Invalid effect slot integer-vector property 0x%04x", param);
}
}
END_API_FUNC
AL_API void 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->mPropLock};
std::lock_guard<std::mutex> __{context->mEffectSlotLock};
ALeffectslot *slot = LookupEffectSlot(context.get(), effectslot);
if UNLIKELY(!slot)
SETERR_RETURN(context, 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, AL_INVALID_VALUE,, "Effect slot gain out of range");
slot->Gain = value;
break;
default:
SETERR_RETURN(context, AL_INVALID_ENUM,, "Invalid effect slot float property 0x%04x",
param);
}
DO_UPDATEPROPS();
}
END_API_FUNC
AL_API void 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->mEffectSlotLock};
ALeffectslot *slot = LookupEffectSlot(context.get(), effectslot);
if UNLIKELY(!slot)
SETERR_RETURN(context, AL_INVALID_NAME,, "Invalid effect slot ID %u", effectslot);
switch(param)
{
default:
SETERR_RETURN(context, AL_INVALID_ENUM,,
"Invalid effect slot float-vector property 0x%04x", param);
}
}
END_API_FUNC
AL_API void 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->mEffectSlotLock};
ALeffectslot *slot = LookupEffectSlot(context.get(), effectslot);
if UNLIKELY(!slot)
SETERR_RETURN(context, AL_INVALID_NAME,, "Invalid effect slot ID %u", effectslot);
switch(param)
{
case AL_EFFECTSLOT_AUXILIARY_SEND_AUTO:
*value = slot->AuxSendAuto ? AL_TRUE : AL_FALSE;
break;
case AL_EFFECTSLOT_TARGET_SOFT:
if(auto *target = slot->Target)
*value = static_cast<ALint>(target->id);
else
*value = 0;
break;
case AL_EFFECTSLOT_STATE_SOFT:
*value = static_cast<int>(slot->mState);
break;
case AL_BUFFER:
if(auto *buffer = slot->Buffer)
*value = static_cast<ALint>(buffer->id);
else
*value = 0;
break;
default:
context->setError(AL_INVALID_ENUM, "Invalid effect slot integer property 0x%04x", param);
}
}
END_API_FUNC
AL_API void 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:
case AL_EFFECTSLOT_STATE_SOFT:
case AL_BUFFER:
alGetAuxiliaryEffectSloti(effectslot, param, values);
return;
}
ContextRef context{GetContextRef()};
if UNLIKELY(!context) return;
std::lock_guard<std::mutex> _{context->mEffectSlotLock};
ALeffectslot *slot = LookupEffectSlot(context.get(), effectslot);
if UNLIKELY(!slot)
SETERR_RETURN(context, AL_INVALID_NAME,, "Invalid effect slot ID %u", effectslot);
switch(param)
{
default:
context->setError(AL_INVALID_ENUM, "Invalid effect slot integer-vector property 0x%04x",
param);
}
}
END_API_FUNC
AL_API void 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->mEffectSlotLock};
ALeffectslot *slot = LookupEffectSlot(context.get(), effectslot);
if UNLIKELY(!slot)
SETERR_RETURN(context, AL_INVALID_NAME,, "Invalid effect slot ID %u", effectslot);
switch(param)
{
case AL_EFFECTSLOT_GAIN:
*value = slot->Gain;
break;
default:
context->setError(AL_INVALID_ENUM, "Invalid effect slot float property 0x%04x", param);
}
}
END_API_FUNC
AL_API void 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->mEffectSlotLock};
ALeffectslot *slot = LookupEffectSlot(context.get(), effectslot);
if UNLIKELY(!slot)
SETERR_RETURN(context, AL_INVALID_NAME,, "Invalid effect slot ID %u", effectslot);
switch(param)
{
default:
context->setError(AL_INVALID_ENUM, "Invalid effect slot float-vector property 0x%04x",
param);
}
}
END_API_FUNC
ALeffectslot::ALeffectslot()
{
PropsClean.test_and_set(std::memory_order_relaxed);
EffectStateFactory *factory{getFactoryByType(EffectSlotType::None)};
assert(factory != nullptr);
al::intrusive_ptr<EffectState> state{factory->create()};
Effect.State = state;
mSlot.mEffectState = state.release();
}
ALeffectslot::~ALeffectslot()
{
if(Target)
DecrementRef(Target->ref);
Target = nullptr;
if(Buffer)
DecrementRef(Buffer->ref);
Buffer = nullptr;
EffectSlotProps *props{mSlot.Update.exchange(nullptr)};
if(props)
{
TRACE("Freed unapplied AuxiliaryEffectSlot update %p\n",
decltype(std::declval<void*>()){props});
delete props;
}
if(mSlot.mEffectState)
mSlot.mEffectState->release();
}
ALenum ALeffectslot::initEffect(ALeffect *effect, ALCcontext *context)
{
EffectSlotType newtype{EffectSlotTypeFromEnum(effect ? effect->type : AL_EFFECT_NULL)};
if(newtype != Effect.Type)
{
EffectStateFactory *factory{getFactoryByType(newtype)};
if(!factory)
{
ERR("Failed to find factory for effect slot type %d\n", static_cast<int>(newtype));
return AL_INVALID_ENUM;
}
al::intrusive_ptr<EffectState> state{factory->create()};
ALCdevice *device{context->mDevice.get()};
std::unique_lock<std::mutex> statelock{device->StateLock};
state->mOutTarget = device->Dry.Buffer;
{
FPUCtl mixer_mode{};
state->deviceUpdate(device, GetEffectBuffer(Buffer));
}
Effect.Type = newtype;
Effect.Props = effect ? effect->Props : EffectProps{};
Effect.State = std::move(state);
}
else if(effect)
Effect.Props = effect->Props;
/* Remove state references from old effect slot property updates. */
EffectSlotProps *props{context->mFreeEffectslotProps.load()};
while(props)
{
props->State = nullptr;
props = props->next.load(std::memory_order_relaxed);
}
return AL_NO_ERROR;
}
void ALeffectslot::updateProps(ALCcontext *context)
{
/* Get an unused property container, or allocate a new one as needed. */
EffectSlotProps *props{context->mFreeEffectslotProps.load(std::memory_order_relaxed)};
if(!props)
props = new EffectSlotProps{};
else
{
EffectSlotProps *next;
do {
next = props->next.load(std::memory_order_relaxed);
} while(context->mFreeEffectslotProps.compare_exchange_weak(props, next,
std::memory_order_seq_cst, std::memory_order_acquire) == 0);
}
/* Copy in current property values. */
props->Gain = Gain;
props->AuxSendAuto = AuxSendAuto;
props->Target = Target ? &Target->mSlot : nullptr;
props->Type = Effect.Type;
props->Props = Effect.Props;
props->State = Effect.State;
/* Set the new container for updating internal parameters. */
props = mSlot.Update.exchange(props, std::memory_order_acq_rel);
if(props)
{
/* If there was an unused update container, put it back in the
* freelist.
*/
props->State = nullptr;
AtomicReplaceHead(context->mFreeEffectslotProps, props);
}
}
void UpdateAllEffectSlotProps(ALCcontext *context)
{
std::lock_guard<std::mutex> _{context->mEffectSlotLock};
for(auto &sublist : context->mEffectSlotList)
{
uint64_t usemask{~sublist.FreeMask};
while(usemask)
{
const int idx{al::countr_zero(usemask)};
ALeffectslot *slot{sublist.EffectSlots + idx};
usemask &= ~(1_u64 << idx);
if(slot->mState != SlotState::Stopped
&& slot->PropsClean.test_and_set(std::memory_order_acq_rel))
slot->updateProps(context);
}
}
}
EffectSlotSubList::~EffectSlotSubList()
{
uint64_t usemask{~FreeMask};
while(usemask)
{
const int idx{al::countr_zero(usemask)};
al::destroy_at(EffectSlots+idx);
usemask &= ~(1_u64 << idx);
}
FreeMask = ~usemask;
al_free(EffectSlots);
EffectSlots = nullptr;
}
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