mirror of
https://github.com/TorqueGameEngines/Torque3D.git
synced 2026-03-04 04:50:31 +00:00
a745fc3757
added libraries: opus flac libsndfile updated: libvorbis libogg openal - Everything works as expected for now. Bare in mind libsndfile needed the check for whether or not it could find the xiph libraries removed in order for this to work.
123 lines
4 KiB
C++
123 lines
4 KiB
C++
/**
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* OpenAL cross platform audio library
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* Copyright (C) 2011 by Chris Robinson.
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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* Or go to http://www.gnu.org/copyleft/lgpl.html
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*/
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#include "config.h"
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#include <algorithm>
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#include <array>
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#include <cstdlib>
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#include <iterator>
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#include "alc/effects/base.h"
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#include "almalloc.h"
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#include "alspan.h"
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#include "core/bufferline.h"
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#include "core/devformat.h"
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#include "core/device.h"
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#include "core/effectslot.h"
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#include "core/mixer.h"
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#include "intrusive_ptr.h"
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struct ContextBase;
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namespace {
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using uint = unsigned int;
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struct DedicatedState final : public EffectState {
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/* The "dedicated" effect can output to the real output, so should have
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* gains for all possible output channels and not just the main ambisonic
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* buffer.
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*/
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float mCurrentGains[MAX_OUTPUT_CHANNELS];
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float mTargetGains[MAX_OUTPUT_CHANNELS];
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void deviceUpdate(const DeviceBase *device, const BufferStorage *buffer) override;
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void update(const ContextBase *context, const EffectSlot *slot, const EffectProps *props,
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const EffectTarget target) override;
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void process(const size_t samplesToDo, const al::span<const FloatBufferLine> samplesIn,
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const al::span<FloatBufferLine> samplesOut) override;
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DEF_NEWDEL(DedicatedState)
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};
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void DedicatedState::deviceUpdate(const DeviceBase*, const BufferStorage*)
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{
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std::fill(std::begin(mCurrentGains), std::end(mCurrentGains), 0.0f);
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}
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void DedicatedState::update(const ContextBase*, const EffectSlot *slot,
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const EffectProps *props, const EffectTarget target)
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{
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std::fill(std::begin(mTargetGains), std::end(mTargetGains), 0.0f);
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const float Gain{slot->Gain * props->Dedicated.Gain};
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if(slot->EffectType == EffectSlotType::DedicatedLFE)
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{
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const uint idx{target.RealOut ? target.RealOut->ChannelIndex[LFE] : InvalidChannelIndex};
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if(idx != InvalidChannelIndex)
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{
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mOutTarget = target.RealOut->Buffer;
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mTargetGains[idx] = Gain;
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}
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}
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else if(slot->EffectType == EffectSlotType::DedicatedDialog)
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{
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/* Dialog goes to the front-center speaker if it exists, otherwise it
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* plays from the front-center location. */
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const uint idx{target.RealOut ? target.RealOut->ChannelIndex[FrontCenter]
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: InvalidChannelIndex};
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if(idx != InvalidChannelIndex)
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{
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mOutTarget = target.RealOut->Buffer;
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mTargetGains[idx] = Gain;
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}
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else
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{
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static constexpr auto coeffs = CalcDirectionCoeffs({0.0f, 0.0f, -1.0f});
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mOutTarget = target.Main->Buffer;
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ComputePanGains(target.Main, coeffs.data(), Gain, mTargetGains);
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}
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}
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}
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void DedicatedState::process(const size_t samplesToDo, const al::span<const FloatBufferLine> samplesIn, const al::span<FloatBufferLine> samplesOut)
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{
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MixSamples({samplesIn[0].data(), samplesToDo}, samplesOut, mCurrentGains, mTargetGains,
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samplesToDo, 0);
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}
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struct DedicatedStateFactory final : public EffectStateFactory {
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al::intrusive_ptr<EffectState> create() override
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{ return al::intrusive_ptr<EffectState>{new DedicatedState{}}; }
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};
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} // namespace
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EffectStateFactory *DedicatedStateFactory_getFactory()
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{
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static DedicatedStateFactory DedicatedFactory{};
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return &DedicatedFactory;
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}
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