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#ifndef VOICE_H
#define VOICE_H
#include <array>
#include <atomic>
#include "almalloc.h"
#include "alspan.h"
#include "alu.h"
#include "buffer_storage.h"
#include "core/bufferline.h"
#include "core/devformat.h"
#include "core/filters/biquad.h"
#include "core/filters/nfc.h"
#include "core/filters/splitter.h"
#include "core/mixer/defs.h"
#include "core/mixer/hrtfdefs.h"
#include "vector.h"
struct ALCcontext;
struct EffectSlot;
enum class DistanceModel : unsigned char;
using uint = unsigned int;
enum class SpatializeMode : unsigned char {
Off,
On,
Auto
};
enum class DirectMode : unsigned char {
Off,
DropMismatch,
RemixMismatch
};
enum {
AF_None = 0,
AF_LowPass = 1,
AF_HighPass = 2,
AF_BandPass = AF_LowPass | AF_HighPass
};
struct DirectParams {
BiquadFilter LowPass;
BiquadFilter HighPass;
NfcFilter NFCtrlFilter;
struct {
HrtfFilter Old;
HrtfFilter Target;
alignas(16) std::array<float,HrtfHistoryLength> History;
} Hrtf;
struct {
std::array<float,MAX_OUTPUT_CHANNELS> Current;
std::array<float,MAX_OUTPUT_CHANNELS> Target;
} Gains;
};
struct SendParams {
BiquadFilter LowPass;
BiquadFilter HighPass;
struct {
std::array<float,MAX_OUTPUT_CHANNELS> Current;
std::array<float,MAX_OUTPUT_CHANNELS> Target;
} Gains;
};
struct VoiceBufferItem {
std::atomic<VoiceBufferItem*> mNext{nullptr};
CallbackType mCallback{nullptr};
void *mUserData{nullptr};
uint mSampleLen{0u};
uint mLoopStart{0u};
uint mLoopEnd{0u};
al::byte *mSamples{nullptr};
};
struct VoiceProps {
float Pitch;
float Gain;
float OuterGain;
float MinGain;
float MaxGain;
float InnerAngle;
float OuterAngle;
float RefDistance;
float MaxDistance;
float RolloffFactor;
std::array<float,3> Position;
std::array<float,3> Velocity;
std::array<float,3> Direction;
std::array<float,3> OrientAt;
std::array<float,3> OrientUp;
bool HeadRelative;
DistanceModel mDistanceModel;
Resampler mResampler;
DirectMode DirectChannels;
SpatializeMode mSpatializeMode;
bool DryGainHFAuto;
bool WetGainAuto;
bool WetGainHFAuto;
float OuterGainHF;
float AirAbsorptionFactor;
float RoomRolloffFactor;
float DopplerFactor;
std::array<float,2> StereoPan;
float Radius;
/** Direct filter and auxiliary send info. */
struct {
float Gain;
float GainHF;
float HFReference;
float GainLF;
float LFReference;
} Direct;
struct SendData {
EffectSlot *Slot;
float Gain;
float GainHF;
float HFReference;
float GainLF;
float LFReference;
} Send[MAX_SENDS];
};
struct VoicePropsItem : public VoiceProps {
std::atomic<VoicePropsItem*> next{nullptr};
DEF_NEWDEL(VoicePropsItem)
};
constexpr uint VoiceIsStatic{ 1u<<0};
constexpr uint VoiceIsCallback{ 1u<<1};
constexpr uint VoiceIsAmbisonic{ 1u<<2}; /* Needs HF scaling for ambisonic upsampling. */
constexpr uint VoiceCallbackStopped{1u<<3};
constexpr uint VoiceIsFading{ 1u<<4}; /* Use gain stepping for smooth transitions. */
constexpr uint VoiceHasHrtf{ 1u<<5};
constexpr uint VoiceHasNfc{ 1u<<6};
struct Voice {
enum State {
Stopped,
Playing,
Stopping,
Pending
};
std::atomic<VoicePropsItem*> mUpdate{nullptr};
VoiceProps mProps;
std::atomic<uint> mSourceID{0u};
std::atomic<State> mPlayState{Stopped};
std::atomic<bool> mPendingChange{false};
/**
* Source offset in samples, relative to the currently playing buffer, NOT
* the whole queue.
*/
std::atomic<uint> mPosition;
/** Fractional (fixed-point) offset to the next sample. */
std::atomic<uint> mPositionFrac;
/* Current buffer queue item being played. */
std::atomic<VoiceBufferItem*> mCurrentBuffer;
/* Buffer queue item to loop to at end of queue (will be NULL for non-
* looping voices).
*/
std::atomic<VoiceBufferItem*> mLoopBuffer;
/* Properties for the attached buffer(s). */
FmtChannels mFmtChannels;
FmtType mFmtType;
uint mFrequency;
uint mSampleSize;
AmbiLayout mAmbiLayout;
AmbiScaling mAmbiScaling;
uint mAmbiOrder;
/** Current target parameters used for mixing. */
uint mStep{0};
ResamplerFunc mResampler;
InterpState mResampleState;
uint mFlags{};
uint mNumCallbackSamples{0};
struct TargetData {
int FilterType;
al::span<FloatBufferLine> Buffer;
};
TargetData mDirect;
std::array<TargetData,MAX_SENDS> mSend;
struct ChannelData {
alignas(16) std::array<float,MaxResamplerPadding> mPrevSamples;
float mAmbiScale;
BandSplitter mAmbiSplitter;
DirectParams mDryParams;
std::array<SendParams,MAX_SENDS> mWetParams;
};
al::vector<ChannelData> mChans{2};
Voice() = default;
~Voice() { delete mUpdate.exchange(nullptr, std::memory_order_acq_rel); }
Voice(const Voice&) = delete;
Voice& operator=(const Voice&) = delete;
void mix(const State vstate, ALCcontext *Context, const uint SamplesToDo);
DEF_NEWDEL(Voice)
};
extern Resampler ResamplerDefault;
#endif /* VOICE_H */
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